JP2021150995A - Wireless power feeding system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless power feeding system capable of suppressing a person from receiving a strong radio wave for a long time.
A wireless power supply system including a toilet device provided in a toilet space and a remote control device supplied with radio waves from the toilet device, and transmitting radio waves to the remote control device. The power supply unit that wirelessly supplies power to the remote control device and, when a person is present in the toilet space, the presence of the person in the toilet space regardless of the position where the person is present. It is a wireless power supply system having a human body detection unit for detecting.
[Selection diagram] Fig. 1

Description

The present disclosure relates to a wireless power supply system.

Patent Document 1 below discloses a wireless power supply system that supplies power from a toilet device to a remote control device by radio waves. The toilet device detects the presence of a person. The toilet device supplies power wirelessly when it does not detect the presence of a person. The toilet device stops wireless power supply when it detects the presence of a person.

Japanese Unexamined Patent Publication No. 2010-53536

The detectable area, which is the area where the toilet device can detect the presence of a person, is limited to a part of the area in the toilet space. Therefore, the toilet device wirelessly supplies power when a person exists in an area other than the detectable area. As a result, a person may receive strong radio waves for a long time.

The present disclosure has been made in view of such circumstances, and an object thereof is to provide a wireless power supply system capable of suppressing a person from receiving a strong radio wave for a long time.

One aspect of the present disclosure is a wireless power supply system including a toilet device provided in a toilet space and a remote control device that is powered by radio waves from the toilet device, and transmits radio waves to the remote control device. A power supply unit that wirelessly supplies power to the remote control device by transmitting, and a person in the toilet space when a person is present in the toilet space, regardless of the position where the person is present. It is a wireless power supply system having a human body detection unit that detects the presence of a human body.

It is a figure which shows the configuration example of the wireless power supply system of 1st Embodiment. It is a figure which shows the configuration example of the 1st control device and remote control device of 1st Embodiment. It is a figure which shows the structural example of the control part of the toilet apparatus of 1st Embodiment. It is a figure which shows the toilet space of 1st Embodiment. It is a figure which shows the control pattern of the wireless power supply of 1st Embodiment. It is a flow chart of the operation of the toilet apparatus of 1st Embodiment. It is a flow chart of the operation of the toilet apparatus of 1st Embodiment. It is a figure which shows the modification of the 1st control device and the remote control device of 1st Embodiment. It is a figure which shows the configuration example of the wireless power supply system of 2nd Embodiment. It is a figure which shows the configuration example of the 1st control device and remote control device of 2nd Embodiment. It is a figure which shows the toilet space of the 2nd Embodiment. It is a figure which shows the structural example of the control part of the toilet apparatus of 2nd Embodiment. It is a figure which shows the configuration example of the wireless power supply system of 3rd Embodiment. It is a figure which shows the configuration example of the 1st control device and the remote control device of 3rd Embodiment. It is a figure which shows the toilet space of the 3rd Embodiment. It is a figure which shows the structural example of the control part of the toilet apparatus of 3rd Embodiment. It is a figure which shows the configuration example of the wireless power supply system of 4th Embodiment. It is a figure which shows the configuration example of the 1st control device and the remote control device of 4th Embodiment. It is a figure which shows the structural example of the control part of the toilet apparatus of 4th Embodiment. It is a figure which shows the configuration example of the wireless power supply system of 5th Embodiment. It is a figure which shows the configuration example of the 1st control device and the remote control device of 5th Embodiment. It is a figure which shows the structural example of the control part of the toilet apparatus of 5th Embodiment. It is a figure which shows the configuration example of the wireless power supply system of 6th Embodiment. It is a figure which shows the configuration example of the 1st control device and the remote control device of 6th Embodiment. It is a figure which shows the structural example of the control part of the toilet apparatus of 6th Embodiment.

<First Embodiment>
As shown in FIG. 1, the wireless power supply system 1 includes a toilet device 2 and a remote control device 3. The wireless power supply system 1 wirelessly supplies power from the toilet device 2 to the remote control device 3. The wireless power supply of the present embodiment is a method of supplying electric power to the remote control device in a non-contact manner by transmitting radio waves from the toilet device 2 to the remote control device 3. The toilet device 2 includes a toilet bowl 4 and a toilet seat device 5.

The toilet bowl 4 is installed on the floor surface in the toilet space 100. A toilet seat device 5 is installed on the upper part of the toilet bowl 4.

The toilet seat device 5 is installed on the toilet bowl 4 provided in the toilet space 100. The toilet seat device 5 includes a main body cover 6, a toilet seat 7, and a toilet lid 8. However, the toilet seat device 5 does not have to include the toilet lid 8.

The main body cover 6 is placed at the rear of the toilet bowl 4 and above the toilet bowl 4. The main body cover 6 accommodates the first control device 9.

The toilet seat 7 is supported by the main body cover 6. The toilet seat 7 rotates with respect to the main body cover 6. The toilet lid 8 is supported by the main body cover 6. The toilet lid 8 rotates with respect to the main body cover 6.

The first control device 9 has a first antenna 51. The first control device 9 wirelessly supplies power by transmitting radio waves from the first antenna 51 toward the remote control device 3. The first control device 9 performs bidirectional or unidirectional wireless communication with the remote control device 3 using radio waves or infrared rays. The unidirectional wireless communication is wireless communication from the remote control device 3 to the first control device 9. When the first control device 9 communicates with the remote control device 3 using radio waves, the radio waves used for wireless power supply and the radio waves used for wireless communication may be different or the same radio waves. May be good.

The remote control device 3 remotely controls the toilet device 2. The remote control device 3 is installed at a predetermined position in the toilet space 100. This predetermined position is, for example, the wall surface of the toilet space 100. The remote control device 3 includes an operation unit 20 and a second control device 30. When the operation unit 20 is operated, the remote control device 3 transmits information corresponding to the operation to the first control device 9 using radio waves or infrared rays.

The operation unit 20 is operated by the user. The operation unit 20 may include one or more push buttons 21.

The push button 21 is connected to the second control device 30. The push button 21 is in the ON state when pressed by the user. The push button 21 is in the off state when not pressed by the user. For example, the plurality of push buttons 21 are a first push button 21a, a second push button 21b, a third push button 21c, and a fourth push button 21d.

The first push button 21a is a button that is pressed by the user seated on the toilet seat 7 when the buttocks are washed with washing water. The second push button 21b is a button that the user presses when adjusting the water pressure of the washing water. The third push button 21c is a button that the user presses when generating a sound from the toilet seat device 5. The fourth push button 21d is a button to be pressed when at least one of the cleaning of the buttocks and the generation of the sound is stopped.

The second control device 30 includes a second antenna 31, a power receiving unit 32, an intensity detecting unit 33, a power storage unit 34, a charge amount detecting unit 35, a communication unit 36, and a control unit 37.

The second antenna 31 receives the radio wave transmitted from the first antenna 51. When the second antenna 31 receives a radio wave, the second antenna 31 outputs a signal corresponding to the received radio wave to the power receiving unit 32. For example, the second antenna 31 may be a loop antenna or a dipole antenna.

The power receiving unit 32 receives electric power from the toilet device 2 via the second antenna 31. The power receiving unit 32 converts the received power into DC power by rectifying it. For example, the power receiving unit 32 includes a rectifying circuit that generates a DC voltage by rectifying a signal transmitted from the second antenna 31. The power receiving unit 32 outputs the converted DC power to the power storage unit 34.

The intensity detection unit 33 detects the radio wave intensity Ir1, which is the intensity of the radio wave received by the second antenna 31. For example, the intensity detection unit 33 may obtain the radio wave strength Ir1 by measuring the received power received by the power receiving unit 32, or may obtain the radio wave strength Ir1 by measuring the DC power converted by the second antenna 31. You may ask. For example, the intensity detection unit 33 may obtain the radio wave intensity Ir1 by measuring the voltage of the signal output from the second antenna 31. The intensity detection unit 33 may obtain the radio wave intensity Ir1 by measuring the DC voltage generated by the rectifier circuit. The intensity detection unit 33 obtains the radio wave intensity Ir1 at regular intervals, and outputs the radio wave intensity Ir1 to the control unit 37. The intensity detection unit 33 is not particularly limited as to the method for measuring the radio wave intensity Ir1, and any method may be used as long as the radio wave intensity Ir1 can be measured.

The power storage unit 34 charges the received power received by the power receiving unit 32. The power storage unit 34 is connected to the power receiving unit 32. For example, the power storage unit 34 charges the DC power converted by the power receiving unit 32. For example, the power storage unit 34 is a secondary battery. For example, the power storage unit 34 is a nickel-metal hydride battery or a lithium-ion battery. For example, the power storage unit 34 may be a capacitor.

The charge amount detection unit 35 obtains the charge amount Q charged in the power storage unit 34. For example, the charge amount detection unit 35 obtains the output voltage of the power storage unit 34 as the charge amount Q. However, the charge amount Q is not limited to the output voltage and may be SOC (State Of Charge). The charge amount detection unit 35 outputs the obtained charge amount Q to the control unit 37.

The communication unit 36 wirelessly communicates with the first control device 9 using radio waves or infrared rays. For example, when communicating using radio waves, the communication unit 36 uses the first control device 9 according to any of Wi-Fi (registered trademark), Bluetooth (registered trademark), and BLE (Bluetooth Low Energy) wireless communication standards. Wirelessly communicate with. However, the communication unit 36 is not particularly limited to the communication standard and the frequency band of the radio wave as long as it can communicate with the first control device 9 using radio waves or infrared rays.

The control unit 37 operates with the electric power charged in the power storage unit 34. The control unit 37 receives information from the first control device 9 via the communication unit 36. When at least one of the plurality of push buttons 21 is turned on, the control unit 37 outputs the identification information corresponding to the pushed buttons 21 in the on state to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the identification signal from the control unit 37 to the first control device 9. When the control unit 37 acquires the radio wave intensity Ir1 from the intensity detection unit 33, the control unit 37 outputs the radio wave intensity Ir1 to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the radio wave intensity Ir1 from the control unit 37 to the first control device 9. When the control unit 37 acquires the charge amount Q from the charge amount detection unit 35, the control unit 37 outputs the charge amount Q to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the charge amount Q from the control unit 37 to the first control device 9.

The configuration of the first control device 9 of the present embodiment will be described below. The first control device 9 includes a power conversion unit 10, a human body detection sensor 11, a communication unit 12, a control unit 13, and a power supply unit 14.

The power conversion unit 10 is supplied with power from an outlet in the toilet space 100 via a cable. The power conversion unit 10 converts the power supplied via the cable into a predetermined power. The power conversion unit 10 supplies the converted power to each of the human body detection sensor 11, the communication unit 12, the control unit 13, and the power supply unit 14. For example, the power conversion unit 10 is an AC-DC converter. The power conversion unit 10 may further include a DC-DC converter that steps down the output of the AC-DC converter.

The human body detection sensor 11 detects a person who has entered the toilet space 100. The human body detection sensor 11 is an entry detection sensor that detects entry into the toilet space 100. The human body detection sensor 11 detects whether or not a person exists in the first region 101, which is a predetermined region in the toilet space 100. The first region 101 is a range in which the human body detection sensor 11 can detect the presence of a person. The first area 101 is an area in front of the toilet device 2 in the toilet space 100. The front is the front direction when viewed from the user sitting on the toilet seat 7. The human body detection sensor 11 detects a person who exists at a position far forward from the toilet seat 7. For example, the human body detection sensor 11 is any of a pyroelectric sensor, an ultrasonic sensor, and a distance measuring sensor. The pyroelectric sensor is a pyroelectric type infrared sensor.

The human body detection sensor 11 is connected to the control unit 13. The human body detection sensor 11 outputs a detection result of whether or not a person exists in the first region 101 to the control unit 13. For example, when the human body detection sensor 11 detects the presence of a person in the first region 101, the human body detection sensor 11 outputs the first detection signal to the control unit 13. For example, when the human body detection sensor 11 does not detect the presence of a person in the first region 101, the human body detection sensor 11 outputs a signal different from the first detection signal to the control unit 13. However, the present invention is not limited to this, and the human body detection sensor 11 may output a predetermined signal to the control unit 13 only when the presence of a person in the first region 101 is detected.

The human body detection sensor 11 may be provided in the toilet space 100, and may not be provided in the toilet device 2.

The communication unit 12 wirelessly communicates with the communication unit 36 using radio waves or infrared rays. The communication unit 12 communicates with the same wireless communication standard as the communication unit 36. For example, when communicating using radio waves, the communication unit 12 wirelessly communicates with the communication unit 36 using any of the wireless communication standards of Wi-Fi, Bluetooth, and BLE.

The control unit 13 is electrically connected to the communication unit 12. The control unit 13 transmits information to the communication unit 12. The control unit 13 receives information from the remote control device 3 via the communication unit 12. When the operation unit 20 is operated, the control unit 13 receives the identification information from the remote control device 3 via the communication unit 12. The control unit 13 receives the radio field strength Ir1 from the remote control device 3 via the communication unit 12. The control unit 37 receives the charge amount Q from the remote control device 3 via the communication unit 12.

The control unit 13 controls the wireless power supply from the toilet device 2 to the remote control device 3. The control unit 13 permits the first wireless power supply when there is no person in the toilet space 100. The first wireless power supply is a wireless power supply that supplies power to the remote control device 3 by transmitting a first radio wave to the remote control device 3. The first electric energy is an integral value of time and electric power. When a person is present in the toilet space 100, the control unit 13 permits the second wireless power supply or prohibits the wireless power supply. The second wireless power supply is a wireless power supply that supplies power to the remote control device 3 by transmitting a second radio wave to the remote control device 3 to supply power equal to or less than the second power amount lower than the first power amount. .. The second wireless power supply may supply power that is lower than the first power amount and is equal to or less than the second power amount, and may have a plurality of power supply patterns in which the amount of power to be supplied is different. For example, the second wireless power supply has a first power supply pattern and a second power supply pattern.

The first power supply pattern is a power supply pattern for supplying electric power of the second electric energy. The second power supply pattern is a power supply pattern that supplies a third electric power amount lower than the second electric energy amount. For example, when a person is present in the toilet space 100 by the human body detection sensor 11, the first control device 9 may perform the second wireless power supply in the first power supply pattern. When the first control device 9 detects the presence of a person in the toilet space 100 by radio waves or infrared rays described later instead of the human body detection sensor 11, the second wireless power supply may be performed in the second power supply pattern. The second electric energy may be a power amount lower than the first electric energy. For example, the second electric energy has a size that does not affect people, pacemakers, or the like.

The power supply method for the second wireless power supply may be any method that can supply power in an amount equal to or less than the second power amount. For example, in the second wireless power supply, the second radio wave may be transmitted by at least one of the first power supply method and the third power supply method. The first power feeding method is a power feeding method in which the radio wave strength of the second radio wave is lower than the radio wave strength of the first radio wave. The second power feeding method is a power feeding method in which the transmission cycle of the second radio wave is longer than the transmission cycle of the first radio wave. The transmission cycle is a cycle in which radio waves are transmitted from the toilet device 2 to the remote control device 3. The third power feeding method is a power feeding method in which the transmission period of the second radio wave is shorter than the transmission period of the first radio wave. The transmission period is a period during which radio waves are transmitted from the toilet device 2 to the remote control device 3.

As shown in FIG. 3, the control unit 13 includes a first determination unit 40, a second determination unit 41, a third determination unit 42, a fourth determination unit 43, and a power supply control unit 44.

The first determination unit 40 determines whether or not a person exists in the first region 101 based on the detection result of the human body detection sensor 11. For example, the first region 101 is a region surrounded by a dotted line shown in FIG. For example, the first determination unit 40 determines that a person exists in the first region 101 when the first detection signal is received from the human body detection sensor 11. For example, when the first determination unit 40 receives a signal different from the first detection signal from the human body detection sensor 11, it determines that no person exists in the first region 101. For example, the first determination unit 40 may determine that a person exists in the first region 101 when the predetermined signal is received from the human body detection sensor 11. When the first determination unit 40 determines that a person exists in the first region 101, the first determination unit 40 outputs the first information, which is information indicating the determination result, to the third determination unit 42.

The second determination unit 41 is used for radio waves and communication of wireless power supply to determine whether or not a person exists in a predetermined area 102 including a region that cannot be detected by the human body detection sensor 11 provided in the toilet space 100. Judgment is based on fluctuations in at least one of radio waves and infrared rays. The area 102 may have an area that cannot be detected by the human body detection sensor 11. The area 102 may be inside the toilet space 100 or may be outside the toilet space 100. The area 102 may be a space including both a space inside the toilet space 100 and a space outside the toilet space 100. For example, the region 102 has a region that does not overlap with at least a part of the first region 101. For example, the area 102 may be an area that does not overlap with the first area 101. For example, the area 102 has a specific area on the side where the remote control device 3 is arranged when viewed from the user sitting on the toilet seat 7 in the toilet space 100. The specific area is an area between the toilet device 2 and the remote control device 3, and is an area in which the presence of a person cannot be detected by the human body detection sensor 11. In the present embodiment, the area 102 is an area having a path through which radio waves propagate between the toilet device 2 and the remote control device 3. The area 102 has an area in the toilet space 100 where the presence of a person cannot be detected by the human body detection sensor 11.

As an example, the second determination unit 41 determines whether or not a person exists in the region 102 according to the radio wave intensity Ir1. The second determination unit 41 determines whether or not the radio wave intensity Ir1 has changed at regular intervals. For example, the second determination unit 41 may determine that the radio wave intensity Ir1 has changed when the rate of change of the radio wave intensity Ir1 exceeds the change rate threshold value which is a predetermined threshold value.

The second determination unit 41 may determine that the radio wave intensity Ir1 has changed when the rate of change of the calculated value of the radio wave intensity Ir1 exceeds the change rate threshold value which is a predetermined threshold value. The calculated value may be an average value of a plurality of radio wave intensities Ir1, a standard deviation, or a dispersion value. The second determination unit 41 may determine that the radio wave intensity Ir1 has fluctuated when at least one of the radio wave intensity Ir1 and the calculated value is less than the first radio wave intensity threshold value which is a predetermined threshold value. When the second determination unit 41 determines that the radio wave intensity Ir1 has fluctuated, it determines that a person exists in the region 102 according to the radio wave intensity Ir1. When the second determination unit 41 determines that the radio wave intensity Ir1 has fluctuated, the second determination unit 41 outputs the second information, which is information indicating the determination result, to the third determination unit 42. The second determination unit 41 may stop the output of the second information when at least one of the radio wave intensity Ir1 and the calculated value is equal to or higher than the second radio wave threshold value which is a predetermined threshold value. The second radio wave threshold value may be the same value as the first radio wave threshold value, or may be a value higher than the first radio wave threshold value. The second determination unit 41 may determine that the radio wave intensity Ir1 has changed when at least one of the radio wave intensity Ir1 and the calculated value exceeds the third radio wave threshold value, which is a predetermined threshold value.

The third determination unit 42 determines whether or not a person exists in the toilet space 100. The third determination unit 42 determines at least one of a case where the first determination unit 40 determines that a person exists in the first area 101 and a case where the second determination unit 41 determines that a person exists in the area 102. In that case, it is determined that a person exists in the toilet space 100. For example, the third determination unit 42 determines that a person exists in the toilet space 100 when at least one of the first information and the second information is acquired. When the third determination unit 42 determines that a person exists in the toilet space 100, the third determination unit 42 outputs the third information, which is information indicating the determination result, to the power supply control unit 44.

The fourth determination unit 43 determines whether or not the power storage unit 34 needs to be charged. For example, the fourth determination unit 43 determines whether or not the charge amount Q is equal to or less than the first charge amount threshold value Q1 which is a predetermined threshold value. When the charge amount Q becomes equal to or less than the first charge amount threshold value Q1, the fourth determination unit 43 determines that the power storage unit 34 needs to be charged. The case where the power storage unit 34 needs to be charged means that the charge amount Q of the power storage unit 34 is insufficient or close to the insufficient state when the remote control device 3 operates. When the fourth determination unit 43 determines that the power storage unit 34 needs to be charged, the fourth determination unit 43 outputs the fourth information, which is information indicating the determination result, to the power supply control unit 44.

The fourth determination unit 43 determines whether or not the charge amount Q is equal to or greater than the second charge amount threshold value Q2. The case where the charge amount Q is equal to or higher than the second charge amount threshold value Q2 is either a case where the power storage unit 34 is fully charged or a case where the charge amount Q is close to full charge. The second charge amount threshold value Q2 is a value higher than the first charge amount threshold value Q1. For example, when the fourth determination unit 43 determines that the charge amount Q is equal to or greater than the second charge amount threshold value Q2, the fourth determination unit 43 outputs the fifth information, which is information indicating the determination result, to the power supply control unit 44.

The power supply control unit 44 permits the first wireless power supply when it is determined that no person exists in the toilet space 100. For example, when the power supply control unit 44 does not acquire the third information, the power supply control unit 44 outputs a first control signal which is a signal for permitting the first wireless power supply to the power supply unit 14.

When it is determined that a person exists in the toilet space 100, the power supply control unit 44 prohibits the first wireless power supply and permits the second wireless power supply. For example, when the power supply control unit 44 acquires the third information, the power supply control unit 44 outputs a second control signal which is a signal for permitting only the second wireless power supply to the power supply unit 14. However, the present invention is not limited to this, and the power supply control unit 44 may prohibit all wireless power supply when it is determined that a person exists in the toilet space 100. In this case, when the power supply control unit 44 acquires the third information, the power supply control unit 44 outputs a third control signal, which is a signal for prohibiting wireless power supply, to the power supply unit 14.

The power supply control unit 44 may allow the second wireless power supply only when it is determined that a person exists in the toilet space 100 and it is determined that the power storage unit 34 needs to be charged. For example, the power supply control unit 44 may output the second control signal to the power supply unit 14 only when the third information is received and the fourth information is received. Then, the power supply control unit 44 may output the third control signal to the power supply unit 14 when the third information is received and the fourth information is not received.

When the power supply control unit 44 receives the fifth information, the power supply control unit 44 prohibits all wireless power supply. When the power supply control unit 44 acquires the fifth information, the power supply control unit 44 outputs a third control signal to the power supply unit 14 to supply wireless power supply regardless of whether the third information is received or not. proclaim.

The power supply unit 14 operates by acquiring electric power from the power conversion unit 10. The power supply unit 14 performs either the first wireless power supply or the second wireless power supply. The power supply unit 14 cannot perform the first wireless power supply and the second wireless power supply at the same time. The radio wave transmitted by the power feeding unit 14 to the remote control device 3 may be, for example, 920 MHz or a microwave.

When at least the second determination unit 41 determines that a person exists in the area 102, the power supply unit 14 executes the second wireless power supply, which is the wireless power supply with the second electric energy or less, or the remote control device 3 Stop wireless power supply to.

When the power supply unit 14 receives the first control signal from the power supply control unit 44, the power supply unit 14 performs the first wireless power supply to the remote control device 3. When the power supply unit 14 receives the second control signal from the power supply control unit 44, the power supply unit 14 performs the second wireless power supply to the remote control device 3. When the power supply unit 14 receives the third control signal from the power supply control unit 44, the power supply unit 14 does not perform wireless power supply to the remote control device 3.

As shown in FIG. 5, the power feeding unit 14 of the present embodiment has a second wireless when the radio wave intensity Ir1 fluctuates, when the human body detection sensor 11 detects the presence of a person, or at least in any one of the cases. Power supply or stop wireless power supply. The power feeding unit 14 performs the first wireless power feeding when the radio wave intensity Ir1 does not fluctuate and when the human body detection sensor 11 does not detect the presence of a person. When the charge amount Q is equal to or greater than the second charge amount threshold value Q2, the power supply unit 14 stops all wireless power supply of the first wireless power supply and the second wireless power supply.

The power feeding unit 14 includes a power transmission unit 50 and a first antenna 51.

The power transmission unit 50 is electrically connected to the first antenna 51. The power transmission unit 50 has a transmitter that generates a transmission signal that is a signal of a predetermined frequency. The power feeding unit 14 may amplify the transmission signal. The power transmission unit 50 may adjust the amplification factor of the transmission signal based on either the first control signal or the second control signal. For example, when the power transmission unit 50 receives the first control signal, the power transmission unit 50 may amplify the transmission signal at the first amplification factor. When the power transmission unit 50 receives the second control signal, the power transmission unit 50 may amplify the transmission signal with a second amplification factor lower than the first amplification factor. The power transmission unit 50 may adjust the phase of the transmission signal. When the power transmission unit 50 receives the control signal of either the first control signal or the second control signal, the power transmission unit 50 outputs a transmission signal whose amplification factor and phase are adjusted to the first antenna 51. When the power transmission unit 50 receives the third control signal, the power transmission unit 50 stops the output of the transmission signal to the first antenna 51.

The first antenna 51 transmits radio waves to the remote control device 3 by transmitting a transmission signal from the power transmission unit 50. In the case of the first wireless power supply, the first antenna 51 transmits the first radio wave toward the remote control device 3. In the case of the second wireless power supply, the first antenna 51 transmits the second radio wave toward the remote control device 3. For example, the first antenna 51 is a loop antenna. The first antenna 51 may be an array antenna having a plurality of antenna elements. The first antenna 51 is provided in the main body cover 6 on the side where the remote control device 3 is arranged as seen from the user sitting on the toilet seat 7. For example, when the remote control device 3 is arranged on the wall surface on the right side of the toilet device 2, the first antenna 51 is provided at least in a specific area on the right side when viewed from the user sitting on the toilet seat 7. .. For example, when the remote control device 3 is arranged on the left wall surface of the toilet device 2, the first antenna 51 is provided at least in a specific area on the left side when viewed from the user sitting on the toilet seat 7. .. The specific area on the right side may be inside the main body cover 6 on the right side of the center line 300 when the toilet space 100 is viewed from a plane. The specific area on the left side may be inside the main body cover 6 on the left side of the center line 300 when the toilet space 100 is viewed from a plane.

For example, the first antenna 51 may be provided at at least one of the left end and the right end of the main body cover 6. For example, when the remote control device 3 is arranged on the wall surface in the right direction of the toilet device 2, the first antenna 51 is arranged at the right end in the main body cover 6. For example, when the remote control device 3 is arranged on the wall surface in the left direction of the toilet device 2, the first antenna 51 is arranged at the left end in the main body cover 6. For example, the first antenna 51 is arranged in a functional portion in the main body cover 6 provided behind the toilet bowl 4.

In the following, a first example of the operation flow of the toilet device 2 will be described with reference to FIG.

The control unit 13 determines whether or not the charge amount Q is equal to or greater than the second charge amount threshold value Q2 (step S101). When the charge amount Q is equal to or greater than the second charge amount threshold value Q2, the control unit 13 prohibits wireless power supply (step S102). When the charge amount Q is less than the second charge amount threshold value Q2, the control unit 13 determines whether or not the radio wave intensity Ir1 has fluctuated (step S103). When the control unit 13 determines that the radio wave intensity Ir1 has fluctuated, the control unit 13 permits the second wireless power supply (step S104). When the control unit 13 determines in step S104 that the radio wave intensity Ir1 has fluctuated, the wireless power supply may be prohibited.

In step S103, when it is determined that the radio wave intensity Ir1 does not fluctuate, the control unit 13 determines whether or not the human body detection sensor 11 has detected the presence of a person (step S105). When the human body detection sensor 11 detects the presence of a person, the control unit 13 shifts to the process of step S104. When the human body detection sensor 11 does not detect the presence of a person, the control unit 13 permits the first wireless power supply (step S106).

In the following, a second example of the operation flow of the toilet device 2 will be described with reference to FIG. 7.

The control unit 13 determines whether or not the charge amount Q is equal to or greater than the second charge amount threshold value Q2 (step S201). When the charge amount Q is equal to or greater than the second charge amount threshold value Q2, the control unit 13 prohibits wireless power supply (step S202). When the charge amount Q is less than the second charge amount threshold value Q2, the control unit 13 determines whether or not the radio wave intensity Ir1 has fluctuated (step S203). When the control unit 13 determines that the radio wave intensity Ir1 has fluctuated, the control unit 13 determines whether or not the charge amount Q is equal to or less than the first charge amount threshold value Q1 (step S204). When the charge amount Q is equal to or less than the first charge amount threshold value Q1, the control unit 13 permits the second wireless power supply (step S205). As a result, the power feeding unit 14 supplies the remote control device 3 with the second wireless power supply. In step S204, the control unit 13 prohibits wireless power supply when the charge amount Q exceeds the first charge amount threshold value Q1 (step S206). As a result, the power feeding unit 14 does not supply power wirelessly.

In step S203, when it is determined that the radio wave intensity Ir1 does not fluctuate, the control unit 13 determines whether or not the human body detection sensor 11 has detected the presence of a person (step S207). When the human body detection sensor 11 detects the presence of a person, the control unit 13 shifts to the process of step S204. When the human body detection sensor 11 does not detect the presence of a person, the control unit 13 permits the first wireless power supply (step S208). As a result, the power feeding unit 14 supplies the remote control device 3 with the first wireless power supply.

When there is a person in a region where the radio wave of wireless power supply propagates, which is a region that cannot be detected by the human body detection sensor 11, the radio wave intensity Ir1 fluctuates. When the radio wave intensity Ir1 fluctuates, the toilet device 2 of the above embodiment performs the second wireless power supply or stops the wireless power supply to the remote control device 3. As a result, the toilet device 2 can prevent a person from receiving strong radio waves for a long time.

The second determination unit 41 determines whether or not a person exists in the region 102, which is a predetermined region, based on the fluctuation of the radio wave intensity of at least one of the radio wave of wireless power supply and the radio wave used for communication. The area 102 is a predetermined area including a area that cannot be detected by the human body detection sensor 11 provided in the toilet space 100, and includes a space adjacent to the toilet device 2. The space adjacent to the toilet device 2 is at least one of a space different from the toilet space 100, a bathroom space, a space provided with a urinal, and a space provided with a washbasin. The bathroom space, the space provided with the urinal, and the space provided with the washbasin may be included in the toilet space 100, respectively.

In the above embodiment, the intensity detection unit 33 has detected the radio wave intensity Ir1, which is the intensity of the radio wave received by the second antenna 31. However, the intensity detection unit 33 may detect a radio wave intensity other than the radio wave intensity Ir1. For example, the intensity detection unit 33 may detect the radio wave intensity Ir2, which is the intensity of the radio wave received from the communication unit 12 by the communication unit 36 by wireless communication. Further, the intensity detection unit 33 may detect the infrared intensity Ir3, which is the intensity of infrared rays received from the communication unit 12 by the communication unit 36 by wireless communication. In this case, the control unit 37 wirelessly transmits the radio wave intensity Ir2 or the infrared intensity Ir3 to the toilet device 2 via the communication unit 36. The second determination unit 41 may determine whether or not a person exists in the region 102 according to the radio wave intensity Ir2 or the infrared intensity Ir3 instead of the radio wave intensity Ir1.

As shown in FIG. 8, the first control device 9 may include an intensity detecting unit 33. In this case, the remote control device 3 does not have to include the strength detection unit 33. When the intensity detection unit 33 is provided in the first control device 9, the intensity detection unit 33 detects the radio wave intensity Ix, which is the intensity of the radio wave received from the communication unit 36 by the communication unit 12 by wireless communication. May be good. When the intensity detection unit 33 is provided in the first control device 9, the intensity detection unit 33 detects the infrared intensity Iy, which is the intensity of infrared rays received from the communication unit 36 by the communication unit 12 by wireless communication. May be good.
The intensity detection unit 33 transmits the radio wave intensity Ix or the infrared intensity Iy to the control unit 13. The second determination unit 41 of the control unit 13 may determine whether or not a person exists in the region 102 according to the radio wave intensity Ix or the infrared intensity Iy instead of the radio wave intensity Ir1.

Therefore, the power feeding unit 14 has a first intensity which is the intensity of the radio wave or the electromagnetic wave received by the remote control device 3 from the toilet device 2 and a second intensity which is the intensity of the radio wave or the electromagnetic wave received by the toilet device 2 from the remote control device 3. When the intensity and at least one of the intensities fluctuate, the second wireless power supply is performed or the wireless power supply to the remote control device 3 is stopped. For example, the first intensity is at least one of radio wave intensity Ir1, radio wave intensity Ir2, and infrared intensity Ir3. For example, the second intensity is either radio intensity Ix or infrared intensity Iy.

The second determination unit 41 determines whether or not a person exists in the area 102 based on the fluctuation of the intensity of at least one of the radio wave of wireless power supply and the electromagnetic wave used for communication. As an example, the intensity of electromagnetic waves used for communication is the intensity of radio waves or infrared rays used for communication between the toilet device 2 and the remote control device 3, and is radio wave intensity Ir2, radio wave intensity Ir3, radio wave intensity Ix, and infrared intensity Iy. At least one of. However, the second determination unit 41 determines the intensity of radio waves or infrared rays for determining whether or not a person exists in the area 102, the toilet device 2 in the toilet space 100 and the toilet device in a space different from the toilet space 100. The intensity of radio waves or infrared rays used for communication with 2 may be used. The second determination unit 41 determines the intensity of radio waves or infrared rays for determining whether or not a person exists in the area 102, the remote control device 3 in the toilet space 100, and the remote control device in a space different from the toilet space 100. The intensity of radio waves or infrared rays used for communication with 3 may be used. The radio waves used in the second determination unit 41 to determine whether or not a person exists in the area 102 are radio waves or infrared rays transmitted and received between the toilet device 2 and the remote control device 3 in the toilet space 100, and the radio waves in the toilet space 100. Radio waves or infrared rays transmitted and received between the toilet device 2 and the toilet device 2 outside the toilet space 100, and radio waves or infrared rays transmitted and received between the remote control device 3 inside the toilet space 100 and the remote control device 3 outside the toilet space 100. Infrared, at least one of the radio waves or infrared.

The toilet device 2 is a toilet when the human body detection sensor 11 detects the presence of a person and when any of the radio wave intensity Ir1, the radio wave intensity Ir2, the infrared intensity Ir3, the radio wave intensity Ix, and the infrared intensity Iy fluctuates. A human body detection unit for detecting the presence of a person in the space 100 is provided. The human body detection unit includes a human body detection sensor 11, an intensity detection unit 33, and a control unit 13. When a person is present in the toilet space 100, the human body detection unit of the first embodiment detects the presence of the person in the toilet space 100 regardless of the position where the person is present. When the toilet device 2 detects a human body in the toilet space 100, the toilet device 2 may perform a second wireless power supply to the remote control device 3 or stop the wireless power supply to the remote control device 3. Thereby, the toilet device 2 can suppress the person from receiving a strong radio wave for a long time when the person exists in the area where the person may receive the radio wave in the toilet space 100.

The control unit 13 may determine whether or not to allow wireless power supply to the remote control device 3 according to the charge amount Q obtained from the communication unit 12. As a result, the toilet device 2 performs wireless power supply according to the charge amount Q when it becomes necessary to supply power when a person exists in the toilet space 100, so that the person is prevented from receiving radio waves for a long time. can do. For example, the permission or disapproval of wireless power supply to the remote control device 3 is any one of the permission of the first wireless power supply, the permission of the second wireless power supply, and the prohibition of the wireless power supply.

When the charge amount Q obtained from the communication unit 12 becomes equal to or less than the first charge amount threshold value Q1, the control unit 13 permits wireless power supply to the remote control device 3, and the charge amount Q is the second charge amount. When the threshold value Q2 or more is reached, the wireless power supply to the remote control device 3 may be prohibited. As a result, the toilet device 2 can suppress overcharging of the power storage unit 34. The toilet device 2 can perform wireless power supply when the charge amount of the power storage unit 34 is small, and can prevent the remote control device 3 from becoming inoperable.

When the third determination unit 42 determines that a person exists in the toilet space 100, the power supply unit 14 performs the second wireless power supply only when the charge amount Q becomes equal to or less than the first charge amount threshold value Q1. You may. As a result, the toilet device 2 can supply power wirelessly at a level safe for humans even when it becomes necessary to supply power when a person is present in the toilet space 100.

The control unit 37 may operate with the DC power output from the power receiving unit 32. For example, when the remote control device 3 is not provided with the power storage unit 34, the control unit 37 operates with the DC power output from the power receiving unit 32. For example, when the remote control device 3 is wirelessly fed, the power storage unit 34 may be charged and the control unit 37 may be operated by the DC power output from the received power. The remote control device 3 may operate the control unit 37 with the electric power charged in the power storage unit 34 when the power is not supplied wirelessly.

The second determination unit 41 of the above embodiment may be provided in addition to the toilet device 2. For example, the second determination unit 41 may be provided in the remote control device 3. For example, the second determination unit 41 may be provided in the toilet space 100 other than the remote control device 3 and the toilet device 2. For example, the second determination unit 41 may be provided in a space outside the toilet space 100. For example, the second determination unit 41 may be provided in the communication device 400 installed in a space outside the toilet space 100.

In the first control device 9, if the first determination unit 40 detects the presence of a person and the second determination unit 41 does not detect the existence of a person, the first power supply pattern may be used for the second wireless power supply. .. Then, the first control device 9 may perform the second wireless power supply in the second power supply pattern when at least the second determination unit 41 detects the presence of a person. The first control device 9 may change the amount of electric power in the case of performing the second wireless power supply based on the charge amount Q. For example, the first control device 9 may increase the electric energy of the second wireless power supply as the charge amount Q decreases. For example, the first control device 9 may select either the first power supply pattern or the second power supply pattern according to the charge amount Q.

For example, the control unit 13 includes a processor. For example, the processor is a CPU (Central Processing Unit) and an MPU (Micro Processing Unit). For example, the control unit 13 may be a microcontroller. The control unit 13 may include at least one of a non-volatile semiconductor and a volatile semiconductor. The control unit 13 may be realized by the processor executing the program. At least a part of the components of the control unit 13 may be realized by hardware, or may be realized by collaboration between software and hardware.

<Second embodiment>
The wireless power feeding system 1B according to the second embodiment will be described. In the drawings, the same or similar parts may be designated by the same reference numerals to omit duplicate explanations in the specification.

As shown in FIG. 9, the wireless power supply system 1B of the second embodiment includes a toilet device 2B and a remote control device 3B. The wireless power supply system 1B wirelessly supplies power from the toilet device 2B to the remote control device 3B. The wireless power supply of the second embodiment is the same as the wireless power supply of the first embodiment. The toilet device 2B includes a toilet bowl 4 and a toilet seat device 5B.

The toilet seat device 5B is installed on the toilet bowl 4 provided in the toilet space 100. The toilet seat device 5B includes a main body cover 6, a toilet seat 7, and a toilet lid 8. However, the toilet seat device 5B does not have to include the toilet lid 8.

The main body cover 6 is placed at the rear of the toilet bowl 4 and above the toilet bowl 4. The main body cover 6 accommodates the first control device 9B.

The first control device 9B has a first antenna 51. The first control device 9B wirelessly supplies power by transmitting radio waves from the first antenna 51 toward the remote control device 3B. The first control device 9B performs bidirectional or unidirectional wireless communication with the remote control device 3B using radio waves or infrared rays. The unidirectional wireless communication is wireless communication from the remote control device 3B to the first control device 9B.

The remote control device 3B remotely controls the toilet device 2B. The remote control device 3B is installed at a predetermined position in the toilet space 100. The remote control device 3B includes an operation unit 20 and a second control device 30B. When the operation unit 20 is operated, the remote control device 3B transmits information corresponding to the operation to the first control device 9B using radio waves or infrared rays.

The second control device 30B includes a second antenna 31, a power receiving unit 32, a power storage unit 34, a charge amount detecting unit 35, a communication unit 36, and a control unit 37B.

The control unit 37B operates with the electric power charged in the power storage unit 34. The control unit 37B receives information from the first control device 9B via the communication unit 36. When at least one of the plurality of push buttons 21 is turned on, the control unit 37B outputs the identification information corresponding to the pushed buttons 21 in the turned on state to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the identification signal from the control unit 37B to the first control device 9B. When the control unit 37B acquires the charge amount Q from the charge amount detection unit 35, the control unit 37B outputs the charge amount Q to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the charge amount Q from the control unit 37B to the first control device 9B.

The configuration of the first control device 9B of the present embodiment will be described below. The first control device 9B includes a power conversion unit 10, a first human body detection sensor 11a, a second human body detection sensor 11b, a communication unit 12, a control unit 13B, and a power supply unit 14.

The first human body detection sensor 11a corresponds to the human body detection sensor 11 of the first embodiment. The first human body detection sensor 11a detects a person who has entered the toilet space 100. The first human body detection sensor 11a is an entry detection sensor that detects entry into the toilet space 100. The first human body detection sensor 11a detects whether or not a person exists in the first area 101, which is a predetermined area in the toilet space 100. The first region 101 is a range in which the first human body detection sensor 11a can detect the presence of a person. The first area 101 is an area in front of the toilet device 2 in the toilet space 100.

The second human body detection sensor 11b detects whether or not a person exists in the second region in the toilet space 100. The second region may include at least a part of the region 103 (the shaded region in FIG. 11) that cannot be detected by the first human body detection sensor 11a. The second region may be a region including the entire region 103. The second human body detection sensor 11b detects whether or not a person is present in the side and rear regions of the first human body detection sensor 11a in the toilet space 100. The second region, which is the detection range of the second human body detection sensor 11b, is the lateral and rear regions of the first human body detection sensor 11a in the toilet space 100. For example, the second region has a region that does not overlap with at least a part of the first region 101. For example, the second region may be a region that does not overlap with the first region 101. For example, the second area has a specific area on the side where the remote control device 3 is arranged when viewed from the user sitting on the toilet seat 7 in the toilet space 100. The specific area is an area between the toilet device 2 and the remote control device 3, and is an area in which the presence of a person cannot be detected by the first human body detection sensor 11a. For example, the second region is a region having a path through which radio waves propagate between the toilet device 2 and the remote control device 3. The second region has an region in the toilet space 100 where the presence of a person cannot be detected by the human body detection sensor 11.

For example, the second human body detection sensor 11b is any of a pyroelectric sensor, an ultrasonic sensor, and a distance measuring sensor. The second human body detection sensor 11b is connected to the control unit 13B. The second human body detection sensor 11b outputs a detection result of whether or not a person exists in the second region to the control unit 13B. For example, when the second human body detection sensor 11b detects the presence of a person in the second region, the second human body detection sensor 11b outputs the second detection signal to the control unit 13B. For example, when the second human body detection sensor 11b does not detect the presence of a person in the second region, the second human body detection sensor 11b outputs a signal different from the second detection signal to the control unit 13B. However, the present invention is not limited to this, and the second human body detection sensor 11b may output a predetermined signal to the control unit 13B only when the presence of a person in the second region is detected.

The second human body detection sensor 11b may be provided in the toilet space 100, and may not be provided in the toilet device 2B. For example, the second human body detection sensor 11b may be provided in the remote control device 3B. The second human body detection sensor 11b may be provided on the wall surface in the toilet space 100, or may be provided on the ceiling in the toilet space 100.

The control unit 13B is electrically connected to the communication unit 12. The control unit 13B transmits information to the communication unit 12. The control unit 13B receives information from the remote control device 3B via the communication unit 12. When the operation unit 20 is operated, the control unit 13B receives the identification information from the remote control device 3B via the communication unit 12. The control unit 13B receives the charge amount Q from the remote control device 3 via the communication unit 12.

The control unit 13B controls the wireless power supply from the toilet device 2B to the remote control device 3B. The control unit 13B permits the first wireless power supply when there is no person in the toilet space 100. When a person is present in the toilet space 100, the control unit 13B permits the second wireless power supply or prohibits the wireless power supply. The first wireless power supply and the second wireless power supply of the second embodiment are the same as the first wireless power supply and the second wireless power supply of the first embodiment.

When the first control device 9B detects that a person exists in the toilet space 100 by the second human body detection sensor 11b instead of the first human body detection sensor 11a, the first wireless power supply may be performed by the second power supply pattern. ..

As shown in FIG. 12, the control unit 13B includes a first determination unit 40, a second determination unit 41B, a third determination unit 42B, a fourth determination unit 43, and a power supply control unit 44.

The second determination unit 41B determines whether or not a person exists in the second region based on the detection result of the second human body detection sensor 11b. For example, the second determination unit 41B determines that a person exists in the second region when the second detection signal is received from the second human body detection sensor 11b. For example, when the second determination unit 41B receives a signal different from the second detection signal from the second human body detection sensor 11b, the second determination unit 41B determines that no person exists in the second region. For example, the second determination unit 41B may determine that a person exists in the second region when the predetermined signal is received from the second human body detection sensor 11b. When the second determination unit 41B determines that a person exists in the second region, the second determination unit 41B outputs the fourth information, which is information indicating the determination result, to the third determination unit 42.

The third determination unit 42B determines whether or not a person exists in the toilet space 100. The third determination unit 42B has at least one of a case where the first determination unit 40 determines that a person exists in the first region 101 and a case where the second determination unit 41B determines that a person exists in the second region. In the case of, it is determined that a person exists in the toilet space 100. For example, the third determination unit 42B determines that a person exists in the toilet space 100 when at least one of the first information and the fourth information is acquired. As a result, when a person is present in the toilet space 100, the third determination unit 42B can detect the presence of the person in the toilet space 100 regardless of the position where the person is present. .. When the third determination unit 42B determines that a person exists in the toilet space 100, the third determination unit 42B outputs the third information, which is information indicating the determination result, to the power supply control unit 44.

The toilet device 2B includes a human body detection unit that detects the presence of a person in the toilet space 100. The human body detection unit is in the toilet space 100 in at least one of the cases where the first human body detection sensor 11a detects the presence of a person and the second human body detection sensor 11b detects the presence of a person. Detects the presence of a person in. This human body detection unit includes a first human body detection sensor 11a, a second human body detection sensor 11b, and a control unit 13. When a person is present in the toilet space 100, the human body detection unit of the second embodiment detects the presence of the person in the toilet space 100 regardless of the position where the person is present. When the toilet device 2B detects a human body in the toilet space 100, the toilet device 2B may perform a second wireless power supply to the remote control device 3B or stop the wireless power supply to the remote control device 3B. Thereby, the toilet device 2B can suppress the person from receiving a strong radio wave for a long time when the person exists in the area where the person may receive the radio wave in the toilet space 100.

The control unit 13B may determine whether or not to allow wireless power supply to the remote control device 3B according to the charge amount Q obtained from the communication unit 12. As a result, the toilet device 2B performs wireless power supply according to the charge amount Q when it becomes necessary to supply power when a person exists in the toilet space 100, so that the person is prevented from receiving radio waves for a long time. can do. For example, the permission or disapproval of wireless power supply to the remote control device 3B is any one of the permission of the first wireless power supply, the permission of the second wireless power supply, and the prohibition of the wireless power supply.

When the charge amount Q obtained from the communication unit 12 becomes equal to or less than the first charge amount threshold value Q1, the control unit 13B permits wireless power supply to the remote control device 3B, and the charge amount Q is the second charge amount. When the threshold value Q2 or more is reached, the wireless power supply to the remote control device 3B may be prohibited. As a result, the toilet device 2B can suppress overcharging of the power storage unit 34. The toilet device 2B can perform wireless power supply when the charge amount of the power storage unit 34 is small, and can prevent the remote control device 3B from becoming inoperable.

The control unit 37B may operate with the DC power output from the power receiving unit 32. For example, when the remote control device 3B is not provided with the power storage unit 34, the control unit 37B operates with the DC power output from the power receiving unit 32. For example, when the remote control device 3B is wirelessly fed, the power storage unit 34 may be charged and the control unit 37B may be operated by the DC power output from the received power. The remote control device 3B may operate the control unit 37B with the electric power charged in the power storage unit 34 when the power is not supplied wirelessly.

The second determination unit 41B of the above embodiment may be provided in addition to the toilet device 2B. For example, the second determination unit 41B may be provided in the remote control device 3B. For example, the second determination unit 41B may be provided in the toilet space 100 other than the remote control device 3B and the toilet device 2B.

In the first control device 9B, if the first determination unit 40B detects the presence of a person and the second determination unit 41B does not detect the existence of a person, the first power supply pattern may be used for the second wireless power supply. .. Then, the first control device 9B may perform the second wireless power supply in the second power supply pattern when at least the second determination unit 41B detects the presence of a person. The first control device 9B may change the amount of electric power in the case of performing the second wireless power supply based on the charge amount Q. For example, the first control device 9B may increase the electric energy of the second wireless power supply as the charge amount Q decreases. For example, the first control device 9B may select either the first power supply pattern or the second power supply pattern according to the charge amount Q.

For example, the control unit 13B includes a processor. For example, the processor is a CPU and an MPU. For example, the control unit 13 may be a microcontroller. The control unit 13B may include at least one of a non-volatile semiconductor and a volatile semiconductor. The control unit 13B may be realized by the processor executing the program. At least a part of the components of the control unit 13B may be realized by hardware, or may be realized by collaboration between software and hardware.

<Third embodiment>
The wireless power supply system 1C according to the third embodiment will be described. In the drawings, the same or similar parts may be designated by the same reference numerals to omit duplicate explanations in the specification.

As shown in FIG. 13, the wireless power supply system 1C of the third embodiment includes a toilet device 2C and a remote control device 3C. The wireless power supply system 1C wirelessly supplies power from the toilet device 2C to the remote control device 3C. The wireless power supply of the third embodiment is the same as the wireless power supply of the first embodiment. The toilet device 2C includes a toilet bowl 4 and a toilet seat device 5C.

The toilet seat device 5C is installed on the toilet bowl 4 provided in the toilet space 100. The toilet seat device 5C includes a main body cover 6, a toilet seat 7, and a toilet lid 8. However, the toilet seat device 5C does not have to include the toilet lid 8.

The main body cover 6 is placed at the rear of the toilet bowl 4 and above the toilet bowl 4. The main body cover 6 accommodates the first control device 9C.

The first control device 9C has a first antenna 51. The first control device 9C wirelessly supplies power by transmitting radio waves from the first antenna 51 toward the remote control device 3C. The first control device 9C performs bidirectional or unidirectional wireless communication with the remote control device 3C using radio waves or infrared rays. The unidirectional wireless communication is wireless communication from the remote control device 3C to the first control device 9C.

The remote control device 3C remotely controls the toilet device 2C. The remote control device 3C is installed at a predetermined position in the toilet space 100. The remote control device 3C includes an operation unit 20 and a second control device 30C. When the operation unit 20 is operated, the remote control device 3C transmits information corresponding to the operation to the first control device 9C using radio waves or infrared rays.

The second control device 30C has the same configuration as the second control device 30B.

The configuration of the first control device 9C of the present embodiment will be described below. The first control device 9C includes a power conversion unit 10, a human body detection sensor 11C, a communication unit 12, a control unit 13C, and a power supply unit 14.

When a person is present in the toilet space 100, the human body detection sensor 11C detects the presence of the person in the toilet space 100 regardless of the position where the person is present. For example, the human body detection sensor 11C is any of a pyroelectric sensor, an ultrasonic sensor, and a distance measuring sensor. The human body detection sensor 11C is connected to the control unit 13C. The human body detection sensor 11C outputs a detection result of whether or not a person exists in the third region 104 to the control unit 13C. For example, when the human body detection sensor 11C detects the presence of a person in the third region 104, the human body detection sensor 11C outputs a third detection signal to the control unit 13C. For example, when the human body detection sensor 11C does not detect the presence of a person in the third region 104, the human body detection sensor 11C outputs a signal different from the third detection signal to the control unit 13C. However, the present invention is not limited to this, and the human body detection sensor 11C may output a predetermined signal to the control unit 13C only when the presence of a person in the third region 104 is detected.

The human body detection sensor 11C is provided in the toilet space 100. If the human body detection sensor 11C can detect the presence of a person in the toilet space 100 regardless of the position where the person 500 exists when the person 500 exists in the toilet space 100, the human body detection sensor 11C can detect the presence of the person in the toilet space 100 at the installation position. There is no particular limitation. For example, the detectable region of the human body detection sensor 11C is the third region 104 shown in FIG. The human body detection sensor 11C may be provided, for example, behind the toilet device 2C when viewed from the user sitting on the toilet seat 7. The third region 104 includes a region having a path through which radio waves propagate between the toilet device 2C and the remote control device 3C.

When the human body detection sensor 11C is a pyroelectric sensor, the directivity angle of the lens of the pyroelectric sensor is such that a predetermined region is a path through which radio waves propagate between the toilet device 2C and the remote control device 3C in the toilet space 100. It may be set to include. For example, the lens of the human body detection sensor 11C is a wide-angle lens and has a wider directivity angle than the human body detection sensor 11.

The control unit 13C is electrically connected to the communication unit 12. The control unit 13C transmits information to the communication unit 12. The control unit 13C receives information from the remote control device 3C via the communication unit 12. When the operation unit 20 is operated, the control unit 13C receives the identification information from the remote control device 3C via the communication unit 12. The control unit 13C receives the charge amount Q from the remote control device 3 via the communication unit 12.

The control unit 13C controls the wireless power supply from the toilet device 2C to the remote control device 3C. The control unit 13C permits the first wireless power supply when there is no person in the toilet space 100. When a person is present in the toilet space 100, the control unit 13C permits the second wireless power supply or prohibits the wireless power supply. The first wireless power supply and the second wireless power supply of the third embodiment are the same as the first wireless power supply and the second wireless power supply of the first embodiment.

When the first control device 9C detects that a person exists in the toilet space 100 by the human body detection sensor 11C, the first wireless power supply may be performed in the second power supply pattern.

As shown in FIG. 16, the control unit 13C includes a determination unit 40C, a fourth determination unit 43, and a power supply control unit 44.

The determination unit 40C determines whether or not a person exists in the toilet space 100 based on the detection result of the human body detection sensor 11C. For example, when the determination unit 40C receives the third detection signal from the human body detection sensor 11C, the determination unit 40C determines that a person exists in the toilet space 100. For example, when the determination unit 40C receives a signal different from the third detection signal from the human body detection sensor 11C, the determination unit 40C determines that no person exists in the toilet space 100. For example, the determination unit 40C may determine that a person exists in the toilet space 100 when the predetermined signal is received from the human body detection sensor 11C. When the determination unit 40C determines that a person exists in the toilet space 100, the determination unit 40C outputs the third information indicating the determination result to the power supply control unit 44C.

The power supply control unit 44C has the same configuration as the power supply control unit 44. When it is determined that a person exists in the toilet space 100, the power supply control unit 44C prohibits the first wireless power supply and permits the second wireless power supply. For example, when it is determined that a person exists in the toilet space 100, the power supply control unit 44 outputs a second control signal, which is a signal for permitting only the second wireless power supply to the power supply unit 14. However, the present invention is not limited to this, and the power supply control unit 44 may prohibit all wireless power supply when it is determined that a person exists in the toilet space 100.

The toilet device 2C includes a human body detection unit that detects the presence of a person in the toilet space 100. This human body detection unit is a human body detection sensor 11C. When a person is present in the toilet space 100, the human body detection unit of the third embodiment detects the presence of the person in the toilet space 100 regardless of the position where the person is present. When the toilet device 2C detects a human body in the toilet space 100, the toilet device 2C may perform a second wireless power supply to the remote control device 3C or stop the wireless power supply to the remote control device 3C. Thereby, the toilet device 2C can suppress the person from receiving a strong radio wave for a long time when the person exists in the area where the person may receive the radio wave in the toilet space 100.

The control unit 13C may determine whether or not to allow wireless power supply to the remote control device 3C according to the charge amount Q obtained from the communication unit 12. As a result, the toilet device 2C performs wireless power supply according to the charge amount Q when it becomes necessary to supply power when a person exists in the toilet space 100, so that the person is prevented from receiving radio waves for a long time. can do. For example, the permission or disapproval of wireless power supply to the remote control device 3C is any one of the permission of the first wireless power supply, the permission of the second wireless power supply, and the prohibition of the wireless power supply.

When the charge amount Q obtained from the communication unit 12 becomes equal to or less than the first charge amount threshold value Q1, the control unit 13C permits wireless power supply to the remote control device 3C, and the charge amount Q is the second charge amount. When the threshold value Q2 or more is reached, the wireless power supply to the remote control device 3C may be prohibited. As a result, the toilet device 2C can suppress overcharging of the power storage unit 34. The toilet device 2C can perform wireless power supply when the charge amount of the power storage unit 34 is small, and can prevent the remote control device 3C from becoming inoperable.

The control unit 37C may operate with the DC power output from the power receiving unit 32. For example, when the remote control device 3C is not provided with the power storage unit 34, the control unit 37C operates with the DC power output from the power receiving unit 32. For example, when the remote control device 3C is wirelessly fed, the power storage unit 34 may be charged and the control unit 37C may be operated by the DC power output from the received power. The remote control device 3C may operate the control unit 37C with the electric power charged in the power storage unit 34 when the power is not supplied wirelessly.

The determination unit 40C may be provided in addition to the toilet device 2C. For example, the determination unit 40C may be provided in the remote control device 3C. For example, the determination unit 40C may be provided in the toilet space 100 other than the remote control device 3C and the toilet device 2C.

For example, the control unit 13C includes a processor. For example, the processor is a CPU and an MPU. For example, the control unit 13 may be a microcontroller. The control unit 13C may include at least one of a non-volatile semiconductor and a volatile semiconductor. The control unit 13C may be realized by the processor executing the program. At least a part of the components of the control unit 13C may be realized by hardware, or may be realized by collaboration between software and hardware.

<Fourth Embodiment>
The wireless power feeding system 1D according to the fourth embodiment will be described. In the drawings, the same or similar parts may be designated by the same reference numerals to omit duplicate explanations in the specification.

As shown in FIG. 17, the wireless power supply system 1D of the fourth embodiment includes a toilet device 2D and a remote control device 3D. The wireless power supply system 1D wirelessly supplies power from the toilet device 2D to the remote control device 3D. The wireless power supply of the fourth embodiment is the same as the wireless power supply of the first embodiment. The toilet device 2D includes a toilet bowl 4 and a toilet seat device 5D.

The toilet seat device 5D is installed on the toilet bowl 4 provided in the toilet space 100. The toilet seat device 5D includes a main body cover 6, a toilet seat 7, and a toilet lid 8. However, the toilet seat device 5D does not have to include the toilet lid 8.

The main body cover 6 is placed at the rear of the toilet bowl 4 and above the toilet bowl 4. The main body cover 6 accommodates the first control device 9D.

The first control device 9D has a first antenna 51. The first control device 9D wirelessly supplies power by transmitting radio waves from the first antenna 51 toward the remote control device 3D. The first control device 9D performs bidirectional or unidirectional wireless communication with the remote control device 3D using radio waves or infrared rays. The unidirectional wireless communication is wireless communication from the remote control device 3D to the first control device 9D.

The remote control device 3D remotely controls the toilet device 2D. The remote control device 3D is installed at a predetermined position in the toilet space 100. The remote control device 3D includes an operation unit 20 and a second control device 30D. When the operation unit 20 is operated, the remote control device 3D transmits information corresponding to the operation to the first control device 9D using radio waves or infrared rays.

The second control device 30D includes a second antenna 31, a power receiving unit 32, a power storage unit 34, a charge amount detecting unit 35, a communication unit 36, a control unit 37D, and a sound collecting unit 38.

The sound collecting unit 38 collects the sound in the toilet space 100. The sound collecting unit 38 converts the collected sound into an electric signal, and outputs the sound signal, which is the electric signal, to the control unit 37D.

The control unit 37D operates with the electric power charged in the power storage unit 34. The control unit 37D receives information from the first control device 9D via the communication unit 36. When at least one of the plurality of push buttons 21 is turned on, the control unit 37D outputs the identification information corresponding to the pushed buttons 21 in the turned on state to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the identification signal from the control unit 37D to the first control device 9D. When the control unit 37D acquires the charge amount Q from the charge amount detection unit 35, the control unit 37D outputs the charge amount Q to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the charge amount Q from the control unit 37D to the first control device 9D.

The control unit 37D transmits the signal strength of the sound signal output from the sound collecting unit 38 to the first control device 9D via the communication unit 36. The signal strength of the sound signal corresponds to the strength of the sound collected by the sound collecting unit 38.

The configuration of the first control device 9D of the present embodiment will be described below. The first control device 9D includes a power conversion unit 10, a human body detection sensor 11, a communication unit 12, a control unit 13D, a power supply unit 14, and a sound output unit 15.

The control unit 13D is electrically connected to the communication unit 12. The control unit 13D transmits information to the communication unit 12. The control unit 13D receives information from the remote control device 3D via the communication unit 12. When the operation unit 20 is operated, the control unit 13D receives the identification information from the remote control device 3D via the communication unit 12. The control unit 13D receives the charge amount Q from the remote control device 3 via the communication unit 12.

The control unit 13D controls the wireless power supply from the toilet device 2D to the remote control device 3D. The control unit 13D permits the first wireless power supply when there is no person in the toilet space 100. When a person is present in the toilet space 100, the control unit 13D permits the second wireless power supply or prohibits the wireless power supply. The first wireless power supply and the second wireless power supply of the fourth embodiment are the same as the first wireless power supply and the second wireless power supply of the first embodiment.

The sound output unit 15 outputs a predetermined sound under the control of the control unit 13D. For example, the sound output unit 15 is a speaker. The predetermined sound is not particularly limited as long as it is a sound, and may be, for example, a voice or a musical piece. The sound output unit 15 does not always output the sound, but may output the sound at a predetermined timing. The sound output unit 15 may output sound only for a predetermined period. For example, the control unit 13D may output a sound from the sound output unit 15 when the human body is detected by the human body detection sensor 11. For example, when the control unit 13D detects that the toilet seat 7 is seated, the sound output unit 15 may output a sound.

The first control device 9D uses the second power supply pattern when it is determined by the human body detection sensor 11 that a person exists in the toilet space 100, or at least when the signal strength of the sound signal fluctuates. A second wireless power supply may be performed.

As shown in FIG. 19, the control unit 13D includes a first determination unit 40, a second determination unit 41D, a third determination unit 42D, a fourth determination unit 43, and a power supply control unit 44.

The second determination unit 41D determines whether or not a person exists in the fourth region, which is a predetermined region including the region that cannot be detected by the human body detection sensor 11 provided in the toilet space 100, by fluctuating the signal strength of the voice signal. judge. The fourth region may have a region that cannot be detected by the human body detection sensor 11. The fourth region may be a region including all regions 103 that cannot be detected by the human body detection sensor 11. The fourth region has a space in the toilet space 100 that does not overlap with at least a part of the first region 101. For example, the fourth region may be a region that does not overlap with the first region 101. For example, the fourth area has a specific area on the side where the remote control device 3 is arranged when viewed from the user sitting on the toilet seat 7 in the toilet space 100. The specific area is an area between the toilet device 2D and the remote control device 3D, and is an area in which the presence of a person cannot be detected by the human body detection sensor 11. In the present embodiment, the fourth region is a region having a path through which radio waves propagate between the toilet device 2 and the remote control device 3.

The second determination unit 41D of the present embodiment determines whether or not a person exists in the fourth region according to the signal strength of the sound signal. The second determination unit 41D determines whether or not the signal strength of the sound signal has changed at regular intervals. For example, the second determination unit 41D may determine that the signal intensity of the sound signal has fluctuated when the rate of change of the signal intensity of the sound signal exceeds the change rate threshold value which is a predetermined threshold value.

The second determination unit 41D may determine that the signal intensity of the sound signal has fluctuated when the rate of change of the calculated value of the signal intensity of the sound signal exceeds the change rate threshold value which is a predetermined threshold value. The calculated value of the calculated value may be an average value of the signal intensities of a plurality of sound signals, a standard deviation, or a dispersion value. The second determination unit 41D may determine that the signal intensity of the sound signal has fluctuated when at least one of the signal intensity of the sound signal and the calculated value of the signal intensity is less than the predetermined first sound intensity threshold value. .. When the second determination unit 41D determines that the signal intensity of the sound signal has fluctuated, it determines that a person exists in the fourth region according to the signal intensity of the sound signal. When the second determination unit 41D determines that the signal strength of the sound signal has fluctuated, the second determination unit 41D outputs the fifth information, which is information indicating the determination result, to the third determination unit 42D. The second determination unit 41D may stop the output of the fifth information when at least one of the signal strength of the sound signal and the calculated value of the signal strength is equal to or higher than the second sound intensity threshold value which is a predetermined threshold value. .. The second sound intensity threshold value may be the same value as the first sound intensity threshold value, or may be a value higher than the first sound intensity threshold value. Even if the second determination unit 41 determines that the signal intensity has fluctuated when at least one of the signal intensity of the sound signal and the calculated value of the signal intensity exceeds the third sound intensity threshold value, which is a predetermined threshold value. good.

The third determination unit 42D determines whether or not a person exists in the toilet space 100. The third determination unit 42D has at least one of a case where the first determination unit 40 determines that a person exists in the first region 101 and a case where the second determination unit 41D determines that a person exists in the fourth region. In the case of, it is determined that a person exists in the toilet space 100. For example, the third determination unit 42D determines that a person exists in the toilet space 100 when at least one of the first information and the fifth information is acquired. When the third determination unit 42D determines that a person exists in the toilet space 100, the third determination unit 42D outputs the third information, which is information indicating the determination result, to the power supply control unit 44.

The sound collecting unit 38 is provided in the remote control device 3D, but is not limited thereto. The sound collecting unit 38 may be provided in the toilet device 2D. The sound collecting unit 38 may be provided in the toilet space 100, and may be provided in a place other than the toilet device 2D and the remote control device 3D. For example, the sound collecting unit 38 may be provided on the wall surface in the toilet space 100.

The sound output unit 15 is provided in the toilet device 2D, but is not limited thereto. The sound output unit 15 may be provided in the remote control device 3D. The sound output unit 15 may be provided in a place other than the toilet device 2D and the remote control device 3D in the toilet space 100. For example, the sound output unit 15 may be provided on the wall surface in the toilet space 100. The sound output unit 15 is not an essential configuration of the wireless power supply system 1D. For example, the control unit 13D takes in in advance the first sound fluctuation value, which is the fluctuation value of the signal strength of the sound signal when no person is present in the toilet space 100. The control unit 13D compares the second sound fluctuation value, which is the fluctuation value of the signal strength of the sound signal obtained from the sound collection unit 38, with the first sound fluctuation value stored in the control unit 13D in advance. Then, it may be determined whether or not there is a person in the fourth region.

For example, even if the control unit 13D creates a trained model by machine learning the fluctuation of the signal strength of the sound signal both when there is no person and when there is a person in the toilet space 100 as learning data. good. This trained model is, for example, a neural network. This trained model takes the signal strength of the sound signal as an input and outputs a determination result of whether or not a person exists in the toilet space 100. The control unit 13D may determine whether or not a person exists in the fourth region by inputting the fluctuation value of the signal strength of the sound signal obtained from the sound collecting unit 38 into the trained model.

The toilet device 2D includes a human body detection unit that detects the presence of a person in the toilet space 100. The human body detection unit determines that a person exists in the toilet space 100 at least in either the case where the human body detection sensor 11 detects the presence of a person or the case where the signal strength of the sound signal fluctuates. Detect. This human body detection unit includes a human body detection sensor 11, a sound collecting unit 38, and a control unit 13D. When a person is present in the toilet space 100, the human body detection unit of the fourth embodiment detects the presence of the person in the toilet space 100 regardless of the position where the person is present. When the toilet device 2D detects a human body in the toilet space 100, the second wireless power supply to the remote control device 3D may be performed, or the wireless power supply to the remote control device 3D may be stopped. Thereby, the toilet device 2D can suppress the person from receiving a strong radio wave for a long time when the person exists in the area where the person may receive the radio wave in the toilet space 100.

The control unit 13D may determine whether or not to allow wireless power supply to the remote control device 3D according to the charge amount Q obtained from the communication unit 12. As a result, the toilet device 2D performs wireless power supply according to the charge amount Q when it becomes necessary to supply power when a person exists in the toilet space 100, so that the person is prevented from receiving radio waves for a long time. can do. For example, the permission or disapproval of wireless power supply to the remote control device 3D is any one of the permission of the first wireless power supply, the permission of the second wireless power supply, and the prohibition of the wireless power supply.

When the charge amount Q obtained from the communication unit 12 becomes equal to or less than the first charge amount threshold value Q1, the control unit 13D permits wireless power supply to the remote control device 3D, and the charge amount Q is the second charge amount. When the threshold value Q2 or more is reached, the wireless power supply to the remote control device 3D may be prohibited. As a result, the toilet device 2D can suppress overcharging of the power storage unit 34. The toilet device 2D can perform wireless power supply when the charge amount of the power storage unit 34 is small, and can prevent the remote control device 3D from becoming inoperable.

The control unit 37D may operate with the DC power output from the power receiving unit 32. For example, when the remote control device 3D is not provided with the power storage unit 34, the control unit 37D operates with the DC power output from the power receiving unit 32. For example, when the remote control device 3D is wirelessly fed, the power storage unit 34 may be charged and the control unit 37D may be operated by the DC power output from the received power. The remote control device 3D may operate the control unit 37D with the electric power charged in the power storage unit 34 when the power is not supplied wirelessly.

The second determination unit 41D of the above embodiment may be provided in addition to the toilet device 2D. For example, the second determination unit 41D may be provided in the remote control device 3D. For example, the second determination unit 41D may be provided in the toilet space 100 other than the remote control device 3D and the toilet device 2D. For example, the second determination unit 41 may be provided in a space outside the toilet space 100.

In the first control device 9D, if the first determination unit 40D detects the presence of a person and the second determination unit 41D does not detect the existence of a person, the first power supply pattern may be used for the second wireless power supply. .. Then, the first control device 9D may perform the second wireless power supply in the second power supply pattern when at least the second determination unit 41D detects the presence of a person. The first control device 9D may change the amount of electric power in the case of performing the second wireless power supply based on the charge amount Q. For example, the first control device 9D may increase the electric energy of the second wireless power supply as the charge amount Q decreases. For example, the first control device 9D may select either the first power supply pattern or the second power supply pattern according to the charge amount Q.

For example, the control unit 13D includes a processor. For example, the processor is a CPU and an MPU. For example, the control unit 13 may be a microcontroller. The control unit 13D may include at least one of a non-volatile semiconductor and a volatile semiconductor. The control unit 13D may be realized by the processor executing the program. At least a part of the components of the control unit 13D may be realized by hardware, or may be realized by collaboration between software and hardware.

<Fifth Embodiment>
The wireless power feeding system 1E according to the fifth embodiment will be described. In the drawings, the same or similar parts may be designated by the same reference numerals to omit duplicate explanations in the specification.

As shown in FIG. 20, the wireless power supply system 1E of the fifth embodiment includes a toilet device 2E and a remote control device 3E. The wireless power supply system 1E wirelessly supplies power from the toilet device 2E to the remote control device 3E. The wireless power supply of the fifth embodiment is the same as the wireless power supply of the first embodiment. The toilet device 2E includes a toilet bowl 4 and a toilet seat device 5E.

The toilet seat device 5E is installed on the toilet bowl 4 provided in the toilet space 100. The toilet seat device 5E includes a main body cover 6, a toilet seat 7, and a toilet lid 8. However, the toilet seat device 5E does not have to include the toilet lid 8.

The main body cover 6 is placed at the rear of the toilet bowl 4 and above the toilet bowl 4. The main body cover 6 accommodates the first control device 9E.

The first control device 9E has a first antenna 51. The first control device 9E wirelessly supplies power by transmitting radio waves from the first antenna 51 toward the remote control device 3E. The first control device 9E performs bidirectional or unidirectional wireless communication with the remote control device 3E using radio waves or infrared rays. The unidirectional wireless communication is wireless communication from the remote control device 3E to the first control device 9E.

The remote control device 3E remotely controls the toilet device 2E. The remote control device 3E is installed at a predetermined position in the toilet space 100. The remote control device 3E includes an operation unit 20 and a second control device 30E. When the operation unit 20 is operated, the remote control device 3E transmits information corresponding to the operation to the first control device 9E using radio waves or infrared rays.

The second control device 30E includes a second antenna 31, a power receiving unit 32, a power storage unit 34, a charge amount detecting unit 35, a communication unit 36, and a control unit 37E.

The control unit 37E operates with the electric power charged in the power storage unit 34. The control unit 37E receives information from the first control device 9E via the communication unit 36. When at least one of the plurality of push buttons 21 is turned on, the control unit 37E outputs the identification information corresponding to the pushed buttons 21 in the turned on state to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the identification signal from the control unit 37E to the first control device 9E. When the control unit 37E acquires the charge amount Q from the charge amount detection unit 35, the control unit 37E outputs the charge amount Q to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the charge amount Q from the control unit 37E to the first control device 9E.

The configuration of the first control device 9E of the present embodiment will be described below. The first control device 9E includes a power conversion unit 10, a human body detection sensor 11, a communication unit 12, a control unit 13E, a power feeding unit 14, and a vibration detection unit 16.

The control unit 13E is electrically connected to the communication unit 12. The control unit 13E transmits information to the communication unit 12. The control unit 13E receives information from the remote control device 3E via the communication unit 12. When the operation unit 20 is operated, the control unit 13E receives the identification information from the remote control device 3E via the communication unit 12. The control unit 13E receives the charge amount Q from the remote control device 3E via the communication unit 12.

The control unit 13E controls the wireless power supply from the toilet device 2E to the remote control device 3E. The control unit 13E permits the first wireless power supply when there is no person in the toilet space 100. When a person is present in the toilet space 100, the control unit 13E permits the second wireless power supply or prohibits the wireless power supply. The first wireless power supply and the second wireless power supply of the fifth embodiment are the same as the first wireless power supply and the second wireless power supply of the first embodiment.

The vibration detection unit 16 detects the vibration in the toilet space 100. When a person invades the toilet space 100, vibration is generated in the toilet space 100. The vibration detection unit 16 detects this signal. The vibration detection unit 16 converts the detected vibration into an electric signal, and outputs the vibration signal, which is the electric signal, to the control unit 13E.

The first control device 9E uses the second power supply pattern when the human body detection sensor 11 detects that a person exists in the toilet space 100 or at least when the signal strength of the vibration signal fluctuates. A second wireless power supply may be performed.

As shown in FIG. 22, the control unit 13E includes a first determination unit 40, a second determination unit 41E, a third determination unit 42E, a fourth determination unit 43, and a power supply control unit 44.

The second determination unit 41E determines whether or not a person exists in the fifth region, which is a predetermined region including the region that cannot be detected by the human body detection sensor 11 provided in the toilet space 100, by fluctuating the signal strength of the vibration signal. judge. The fifth region may have a region that cannot be detected by the human body detection sensor 11. The fifth region may be a region including all regions 103 that cannot be detected by the human body detection sensor 11. The fifth region has a space in the toilet space 100 that does not overlap with at least a part of the first region 101. For example, the fifth region may be a region that does not overlap with the first region 101. For example, the fifth area has a specific area on the side where the remote control device 3 is arranged when viewed from the user sitting on the toilet seat 7 in the toilet space 100. The specific area is an area between the toilet device 2 and the remote control device 3, and is an area in which the presence of a person cannot be detected by the human body detection sensor 11. In the present embodiment, the fifth region is a region having a path through which radio waves propagate between the toilet device 2 and the remote control device 3.

The second determination unit 41E of the present embodiment determines whether or not a person exists in the fifth region according to the signal strength of the vibration signal. The second determination unit 41E determines whether or not the signal strength of the vibration signal has fluctuated at regular intervals. For example, the second determination unit 41E may determine that the signal intensity of the vibration signal has fluctuated when the rate of change of the signal intensity of the vibration signal exceeds the change rate threshold value which is a predetermined threshold value.

The second determination unit 41E may determine that the signal intensity of the vibration signal has fluctuated when the rate of change of the calculated value of the signal intensity of the vibration signal exceeds the change rate threshold value which is a predetermined threshold value. The calculated value of the calculated value may be an average value of the signal intensities of a plurality of vibration signals, a standard deviation, or a dispersion value. The second determination unit 41E may determine that the signal intensity of the vibration signal has fluctuated when at least one of the signal intensity of the vibration signal and the calculated value of the signal intensity is less than a predetermined first vibration intensity threshold value. .. When the second determination unit 41E determines that the signal strength of the vibration signal has fluctuated, it determines that a person exists in the fifth region according to the signal strength of the vibration signal. When the second determination unit 41E determines that the signal strength of the vibration signal has fluctuated, the second determination unit 41E outputs information, which is the sixth information indicating the determination result, to the third determination unit 42E. The second determination unit 41E may stop the output of the sixth information when at least one of the signal strength of the vibration signal and the calculated value of the signal strength is equal to or higher than the second vibration intensity threshold value which is a predetermined threshold value. .. Even if the second determination unit 41 determines that the signal intensity has fluctuated when at least one of the signal intensity of the vibration signal and the calculated value of the signal intensity exceeds the third vibration intensity threshold value, which is a predetermined threshold value. good.

The third determination unit 42E determines whether or not a person exists in the toilet space 100. The third determination unit 42E has at least one of a case where the first determination unit 40 determines that a person exists in the first region 101 and a case where the second determination unit 41E determines that a person exists in the fifth region. In the case of, it is determined that a person exists in the toilet space 100. For example, the third determination unit 42E determines that a person exists in the toilet space 100 when at least one of the first information and the sixth information is acquired. When the third determination unit 42E determines that a person exists in the toilet space 100, the third determination unit 42E outputs the third information, which is information indicating the determination result, to the power supply control unit 44.

The vibration detection unit 16 is provided in the toilet device 2E. The vibration detection unit 16 does not have to be provided in the toilet device 2E. The vibration detection unit 16 is provided, for example, under the floor in a region that cannot be detected by at least the human body detection sensor 11. The vibration detection unit 16 may be provided in the remote control device 3. The vibration detection unit 16 may be provided in the toilet space 100, and may be provided in a place other than the toilet device 2E and the remote control device 3E.

For example, the control unit 13E takes in the first vibration fluctuation value, which is the fluctuation value of the signal strength of the vibration signal when no person is present in the toilet space 100, in advance. The control unit 13E compares the second vibration fluctuation value, which is the fluctuation value of the signal strength of the vibration signal obtained from the vibration detection unit 16, with the first vibration fluctuation value stored in the control unit 13E in advance. Then, it may be determined whether or not there is a person in the fifth region.

For example, the control unit 13E creates a trained model by machine learning the fluctuation of the signal strength of the vibration signal both when there is no person and when there is a person in the toilet space 100 as learning data. May be good. This trained model is, for example, a neural network. This trained model takes the signal strength of the vibration signal as an input and outputs a determination result of whether or not a person exists in the toilet space 100. The control unit 13E may determine whether or not a person exists in the fifth region by inputting the fluctuation value of the signal intensity of the vibration signal obtained from the vibration detection unit 16 into the trained model.

The toilet device 2E includes a human body detection unit that detects the presence of a person in the toilet space 100. The human body detection unit determines that a person exists in the toilet space 100 at least in either the case where the human body detection sensor 11 detects the presence of a person or the case where the signal strength of the vibration signal fluctuates. Detect. This human body detection unit includes a human body detection sensor 11, a vibration detection unit 16, and a control unit 13E. When a person is present in the toilet space 100, the human body detection unit of the fifth embodiment detects the presence of the person in the toilet space 100 regardless of the position where the person is present. When the toilet device 2E detects a human body in the toilet space 100, the second wireless power supply to the remote control device 3E may be performed, or the wireless power supply to the remote control device 3E may be stopped. Thereby, the toilet device 2E can suppress the person from receiving a strong radio wave for a long time when the person exists in the area where the person may receive the radio wave in the toilet space 100.

The control unit 13E may determine whether or not to allow wireless power supply to the remote control device 3E according to the charge amount Q obtained from the communication unit 12. As a result, the toilet device 2E performs wireless power supply according to the charge amount Q when it becomes necessary to supply power when a person exists in the toilet space 100, so that the person is prevented from receiving radio waves for a long time. can do. For example, the permission or disapproval of the wireless power supply to the remote control device 3E is any one of the permission of the first wireless power supply, the permission of the second wireless power supply, and the prohibition of the wireless power supply.

When the charge amount Q obtained from the communication unit 12 becomes equal to or less than the first charge amount threshold value Q1, the control unit 13E permits wireless power supply to the remote control device 3E, and the charge amount Q is the second charge amount. When the threshold value Q2 or more is reached, the wireless power supply to the remote control device 3E may be prohibited. As a result, the toilet device 2E can suppress overcharging of the power storage unit 34. The toilet device 2E can perform wireless power supply when the charge amount of the power storage unit 34 is small, and can prevent the remote control device 3E from becoming inoperable.

The control unit 37E may operate with the DC power output from the power receiving unit 32. For example, when the remote control device 3E is not provided with the power storage unit 34, the control unit 37E operates with the DC power output from the power receiving unit 32. For example, when the remote control device 3E is wirelessly fed, the power storage unit 34 may be charged and the control unit 37E may be operated by the DC power output from the received power. The remote control device 3E may operate the control unit 37E with the electric power charged in the power storage unit 34 when the power is not supplied wirelessly.

The second determination unit 41E of the above embodiment may be provided in addition to the toilet device 2E. For example, the second determination unit 41E may be provided in the remote control device 3E. For example, the second determination unit 41E may be provided in the toilet space 100 other than the remote control device 3E and the toilet device 2E.

In the first control device 9E, if the first determination unit 40E detects the presence of a person and the second determination unit 41E does not detect the existence of a person, the second wireless power supply may be performed in the first power supply pattern. .. Then, the first control device 9E may perform the second wireless power supply in the second power supply pattern when at least the second determination unit 41E detects the presence of a person. The first control device 9E may change the amount of electric power in the case of performing the second wireless power supply based on the charge amount Q. For example, the first control device 9E may increase the electric energy of the second wireless power supply as the charge amount Q decreases. For example, the first control device 9E may select either the first power supply pattern or the second power supply pattern according to the charge amount Q.

For example, the control unit 13E includes a processor. For example, the processor is a CPU and an MPU. For example, the control unit 13 may be a microcontroller. The control unit 13E may include at least one of a non-volatile semiconductor and a volatile semiconductor. The control unit 13E may be realized by the processor executing the program. At least a part of the components of the control unit 13E may be realized by hardware, or may be realized by collaboration between software and hardware.

<Sixth Embodiment>
The wireless power supply system 1F according to the sixth embodiment will be described. In the drawings, the same or similar parts may be designated by the same reference numerals to omit duplicate explanations in the specification.

As shown in FIG. 23, the wireless power supply system 1F of the sixth embodiment includes a toilet device 2F, a remote control device 3F, and a communication device 400. The wireless power supply system 1F wirelessly supplies power from the toilet device 2F to the remote control device 3F. The wireless power supply of the sixth embodiment is the same as the wireless power supply of the first embodiment. The toilet device 2F includes a toilet bowl 4 and a toilet seat device 5F.

The toilet seat device 5F is installed on the toilet bowl 4 provided in the toilet space 100. The toilet seat device 5F includes a main body cover 6, a toilet seat 7, and a toilet lid 8. However, the toilet seat device 5F does not have to include the toilet lid 8.

The main body cover 6 is placed at the rear of the toilet bowl 4 and above the toilet bowl 4. The main body cover 6 accommodates the first control device 9F.

The first control device 9F has a first antenna 51. The first control device 9F wirelessly supplies power by transmitting radio waves from the first antenna 51 toward the remote control device 3F. The first control device 9F wirelessly communicates with the remote control device 3F in both directions or in one direction using radio waves or infrared rays. The unidirectional wireless communication is wireless communication from the remote control device 3F to the first control device 9F.

The remote control device 3F remotely controls the toilet device 2F. The remote control device 3F is installed at a predetermined position in the toilet space 100. The remote control device 3F includes an operation unit 20 and a second control device 30F. When the operation unit 20 is operated, the remote control device 3F transmits information corresponding to the operation to the first control device 9F using radio waves or infrared rays.

The second control device 30F includes a second antenna 31, a power receiving unit 32, a power storage unit 34, a communication unit 36, and a control unit 37F.

The control unit 37F operates with the electric power charged in the power storage unit 34. The control unit 37F receives information from the first control device 9F via the communication unit 36. When at least one of the plurality of push buttons 21 is turned on, the control unit 37F outputs the identification information corresponding to the pushed buttons 21 in the turned on state to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the identification signal from the control unit 37F to the first control device 9F. When the control unit 37F acquires the charge amount Q from the charge amount detection unit 35, the control unit 37F outputs the charge amount Q to the communication unit 36. As a result, the communication unit 36 wirelessly transmits the charge amount Q from the control unit 37F to the first control device 9F.

The communication device 400 may be any device having a communication function other than the toilet device 2 and the remote control device 3 provided in the toilet space 100. For example, the communication device 400 is a communication device that wirelessly transmits information received by a sensor used in the IoT (Internet of Things). For example, the communication device 400 may be included in at least one of a communication device owned by a person, a wearable device, and an implantable device embedded in the body. For example, a communication device possessed by a person is at least one of a personal digital assistant, a vehicle communication device, and a switchgear. For example, a mobile information terminal is a smartphone or tablet terminal. The vehicle communication device is a device that locks or unlocks the opening / closing body of the vehicle and starts the engine of the vehicle remotely and wirelessly. The opening / closing body of the vehicle is at least one of a door and a tailgate. A switchgear is a device that can remotely and wirelessly open and close a building's switchgear. The opening and closing body of the building is at least one of a door, a window and a shutter. For example, a wearable device is at least one of a smartwatch and a smartglass. Implantable devices are at least one of medical devices, pacemakers and microchips. For example, the microchip is embedded in a person for entry / exit control applications. The communication device 400 communicates with the toilet device 2F.

The configuration of the first control device 9F of the present embodiment will be described below. The first control device 9F includes a power conversion unit 10, a human body detection sensor 11, a communication unit 12F, a control unit 13F, and a power supply unit 14.

The communication unit 12F communicates with one or more communication devices 400 other than the toilet device 2F and the remote control device 3F provided in the toilet space 100 by wire or wirelessly.

The control unit 13F is electrically connected to the communication unit 12. The control unit 13F transmits information to the communication unit 12F. The control unit 13F receives information from the remote control device 3F via the communication unit 12F. When the operation unit 20 is operated, the control unit 13F receives the identification information from the remote control device 3F via the communication unit 12F. The control unit 13F receives the charge amount Q from the remote control device 3 via the communication unit 12F.

The control unit 13F controls the wireless power supply from the toilet device 2F to the remote control device 3F. The control unit 13F permits the first wireless power supply when there is no person in the toilet space 100. When a person is present in the toilet space 100, the control unit 13F permits the second wireless power supply or prohibits the wireless power supply. The first wireless power supply and the second wireless power supply of the sixth embodiment are the same as the first wireless power supply and the second wireless power supply of the first embodiment.

The first control device 9F detects that a person exists in the toilet space 100 by the human body detection sensor 11, or at least when the communication unit 12F communicates with the communication device 400, the second power supply is supplied. A second wireless power supply may be performed in a pattern.

As shown in FIG. 25, the control unit 13F includes a first determination unit 40, a second determination unit 41F, a third determination unit 42F, a fourth determination unit 43, and a power supply control unit 44.

When the communication unit 12F communicates with the communication device 400, the second determination unit 41F determines that a person exists in the toilet space 100.

The third determination unit 42F determines whether or not a person exists in the toilet space 100. The third determination unit 42F has at least one of a case where the first determination unit 40 determines that a person exists in the first region 101 and a case where the second determination unit 41F determines that a person exists. In the case of, it is determined that a person exists in the toilet space 100. However, the present invention is not limited to this, and the third determination unit 42F may determine that a person exists in the toilet space 100 only when the second determination unit 41F determines that a person exists. In this case, the human body detection sensor 11 and the first determination unit 40 are not indispensable configurations in the wireless power supply system 1F. When the third determination unit 42F determines that a person exists in the toilet space 100, the third determination unit 42F outputs the third information, which is information indicating the determination result, to the power supply control unit 44.

The toilet device 2F includes a human body detection unit that detects the presence of a person when the communication unit 12F communicates with the communication device 400 in the toilet space 100. This human body detection unit includes a communication unit 12F and a control unit 13F. That is, when a person is present in the toilet space 100, the human body detection unit of the sixth embodiment detects the presence of the person in the toilet space 100 regardless of the position where the person is present. .. When the toilet device 2F detects a human body in the toilet space 100, the second wireless power supply to the remote control device 3F may be performed, or the wireless power supply to the remote control device 3F may be stopped. Thereby, the toilet device 2F can suppress the person from receiving a strong radio wave for a long time when the person exists in the area where the person may receive the radio wave in the toilet space 100.

The control unit 13F may determine whether or not to allow wireless power supply to the remote control device 3F according to the charge amount Q obtained from the communication unit 12F. As a result, the toilet device 2F performs wireless power supply according to the charge amount Q when it becomes necessary to supply power when a person exists in the toilet space 100, so that the person is prevented from receiving radio waves for a long time. can do. For example, the permission or disapproval of wireless power supply to the remote control device 3F is any one of the permission of the first wireless power supply, the permission of the second wireless power supply, and the prohibition of the wireless power supply.

When the charge amount Q obtained from the communication unit 12F becomes equal to or less than the first charge amount threshold value Q1, the control unit 13F permits wireless power supply to the remote control device 3F, and the charge amount Q is the second charge amount. When the threshold value Q2 or more is reached, the wireless power supply to the remote control device 3F may be prohibited. As a result, the toilet device 2F can suppress overcharging of the power storage unit 34. The toilet device 2F can perform wireless power supply when the charge amount of the power storage unit 34 is small, and can prevent the remote control device 3F from becoming inoperable.

The communication device 400 may be included in at least one of a washbasin device, a faucet device, a bathroom device, a urinal device, an opening / closing body control device, a lighting device, a home appliance device, and a security device in the toilet space 100. The toilet space 100 may be the entire space of the public toilet.

When the wash basin has a communication device 400, the communication device 400 provides human body detection information indicating that a person exists when the lighting device or the faucet device provided in the wash basin is used. May be sent to. When the bathroom device has the communication device 400, the communication device 400 may transmit the human body detection information indicating that a person exists to the toilet device 2 when the person in the bathroom is detected. When the faucet device has the communication device 400, the communication device 400 may transmit the human body detection information indicating that a person exists when the faucet is used to the toilet device 2. When the urinal device has the communication device 400, the communication device 400 may transmit the human body detection information indicating that a person exists when the urinal is used to the toilet device 2. The case where the urinal is used is, for example, the case where a person in front of the urinal is detected by a motion sensor in the urinal device. The opening / closing body control device is a device that opens / closes the opening / closing body of a building. The opening / closing body is a window or a door. When the opening / closing body control device has the communication device 400, the communication device 400 may transmit the human body detection information indicating that a person exists when controlling the opening / closing body to the toilet device 2.

When the lighting device has the communication device 400, the communication device 400 may transmit the human body detection information indicating that a person exists when the lighting device in the lighting device is lit to the toilet device 2. .. When the home electric appliance has the communication device 400, the communication device 400 may transmit the human body detection information to the toilet device 2 when the home electric appliance is driven. For example, home appliances are at least one of air conditioners, televisions, refrigerators and washing machines. When the communication device 400 is provided in the refrigerator, a person exists when the communication device 400 detects at least one of the open state to the closed state and the closed state to the open state of the refrigerator door. Human body detection information indicating that may be transmitted to the toilet device 2. The security device is, for example, at least one of a security camera and a security sensor. When the security device has a communication device 400, the communication device 400 provides human body detection information indicating that a person exists when a person is detected by a security camera or a security sensor or when the setting of the security device is changed. It may be transmitted to the toilet device 2.

The second determination unit 41F may determine that a person exists in the toilet space 100 when the human body examination information is received from the communication device 400 via the communication unit 12F.

The control unit 37F may operate with the DC power output from the power receiving unit 32. For example, when the remote control device 3F is not provided with the power storage unit 34, the control unit 37E operates with the DC power output from the power receiving unit 32. For example, when the remote control device 3F is wirelessly fed, the power storage unit 34 may be charged and the control unit 37F may be operated by the DC power output from the received power. The remote control device 3F may operate the control unit 37F with the electric power charged in the power storage unit 34 when the power is not supplied wirelessly.

The second determination unit 41F of the sixth embodiment may be provided in addition to the toilet device 2F. For example, the second determination unit 41F may be provided in the remote control device 3F. For example, the second determination unit 41F may be provided in the toilet space 100 other than the remote control device 3F and the toilet device 2F.

For example, the control unit 13F includes a processor. For example, the processor is a CPU and an MPU. For example, the control unit 13 may be a microcontroller. The control unit 13F may include at least one of a non-volatile semiconductor and a volatile semiconductor. The control unit 13F may be realized by the processor executing the program. At least a part of the components of the control unit 13F may be realized by hardware, or may be realized by collaboration between software and hardware.

For example, the hardware is at least one of LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), and GPU (Graphics Processing Unit). The above program may be stored in the storage device in advance. The storage device is a non-transient storage medium. For example, the storage device is at least one of an HDD (Hard Disk Drive) and a flash memory. The program may be stored in a removable storage medium. In this case, the program may be installed in the storage device by mounting the storage medium in the drive device. The storage medium is a non-transient storage medium. For example, the recording medium is either a DVD or a CD-ROM.

1,1B, 1C, 1D, 1E, 1F ... Wireless power supply system, 2,2B, 2C, 2D, 2E, 2F ... Toilet device, 3,3B, 3C, 3D, 3E, 3F ... Remote control device, 12, 12F ... communication unit, 13, 13B, 13C, 13D, 13E, 13F ... control unit, 14 ... power supply unit, 11 ... human body detection sensor, 11a ... first human body detection sensor, 11b ... second human body detection sensor, 16 ... vibration detection Department, 38 ... Sound collection unit

Claims (10)

A wireless power supply system including a toilet device provided in a toilet space and a remote control device that is powered by radio waves from the toilet device.
A power supply unit that wirelessly supplies power to the remote control device by transmitting radio waves to the remote control device.
When a person is present in the toilet space, the human body detection unit that detects the presence of the person in the toilet space regardless of the position where the person is present, and the human body detection unit.
Wireless power supply system with. The human body detection unit includes a first human body detection sensor that detects the presence of a person in the first region of the toilet space.
A second human body detection sensor that detects the presence of a person in the second area of the toilet space, and
With
The second region includes a region other than the first region in the toilet space.
The wireless power supply system according to claim 1. The human body detection unit
A human body detection sensor for detecting the presence of a person in a predetermined area in the toilet space is provided.
The human body detection sensor is provided behind the toilet device when viewed from the user sitting on the toilet seat.
The wireless power supply system according to claim 1. The human body detection unit
It has a pyroelectric sensor, and is provided with a human body detection sensor that detects the presence of a person in a predetermined area in the toilet space based on the detection result of the pyroelectric sensor.
The directivity angle of the lens of the pyroelectric sensor is set so that the predetermined region includes a region between the remote control device and the toilet device in the toilet space.
The wireless power supply system according to claim 1. The toilet device and the remote control device communicate with each other in one direction or two directions using infrared rays.
The human body detection unit detects the presence of a person in the toilet space based on the fluctuation of the intensity of the infrared rays used for the communication.
The wireless power supply system according to claim 1. The human body detection unit
A sound collecting part that collects sound and
A determination unit that determines whether or not a person exists in the toilet space based on the intensity of the sound collected by the sound collection unit, and a determination unit.
Have,
The wireless power supply system according to claim 1. The human body detection unit
A vibration detector that detects vibration, and a vibration detector
A determination unit that determines whether or not a person is present in the toilet space based on the intensity of vibration detected by the vibration detection unit.
Have,
The wireless power supply system according to claim 1. The human body detection unit
Detecting the presence of a person in the toilet space by communicating with at least one of a communication device, a wearable device, and an implantable device embedded in the body possessed by the person.
The wireless power supply system according to claim 1. The power feeding unit
When the human body detection unit detects the presence of a person, the amount of power supplied wirelessly is reduced or the wireless power supply is stopped.
The wireless power supply system according to any one of claims 1 to 8. The first human body detection sensor is an entry detection sensor that detects entry into the toilet space.
The wireless power supply system according to claim 2.

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