JP3608394B2 - Automatic switch with hot wire sensor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic switch with a heat ray sensor that has a heat ray sensor for detecting a heat ray from a human body and performs predetermined control on a corresponding load, for example, according to the detection result of the heat ray sensor.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there are various automatic switches with a heat ray sensor for controlling lighting or extinguishing of a lighting fixture, for example, depending on the presence or absence of a person obtained from the detection result of the heat ray sensor. Proposed.
[0003]
For example, it further includes a brightness sensor that detects illuminance and a brightness sensor adjustment switch that sets the brightness sensor to either on or off, and the brightness sensor adjustment switch is set to the on state. If the ambient illumination is determined to be dark from the detection result of the brightness sensor, the predetermined control is performed according to the detection result of the heat sensor, while the brightness sensor adjustment switch is set to the off state. There is known an automatic switch with a heat ray sensor that performs predetermined control according to the detection result of the heat ray sensor regardless of the ambient illuminance.
[0004]
[Problems to be solved by the invention]
Some of the conventional automatic switches with a heat ray sensor as described above include a light source such as an LED or a lamp that blinks when a heat ray is detected by the heat ray sensor on the surface of the instrument or in the lens. The light source is a function for confirming the detection area of the heat ray sensor, and is a function necessary for adjusting the detection area when there is an inconvenience in the detection operation of the heat ray sensor during installation or use of the instrument. Not only is this light source normally unnecessary, but some users feel the blinking uncomfortable.
[0005]
The brightness sensor adjustment switch described above is rarely set to the off state during normal use of a general house. For example, if the surroundings are bright when adjusting the detection area of the heat ray sensor, the brightness sensor adjustment switch is set to the off state.
[0006]
The present invention has been made in view of the above circumstances, and an object thereof is to provide an automatic switch with a heat ray sensor that can blink a light source when necessary and can reduce discomfort caused by blinking for a user.
[0007]
[Means for Solving the Problems]
Claim 1 Departure Tomorrow , A light source, a heat ray sensor for detecting heat rays from the human body, When the heat ray is detected by a load switch for supplying power from an external power source to the load and the heat ray sensor, the load switch is turned on to supply power to the load and to blink the light source Control means for transmitting the flashing control signal to the light source, and a switch interposed on the transmission path of the flashing control signal from the control means. Setting means for setting the light source to either on or off, and when the heat ray is detected by the heat ray sensor, if the light source is set to the on state by the setting means, the light source Blinking, and if the light source is set to off by the setting means, the blinking of the light source is stopped. It is characterized by The
[0008]
In this configuration, control means Even if a flashing control signal is sent from the The light source will stop blinking, so the light source According to the blinking control signal It stops flashing. Accordingly, the light source can be blinked when necessary, and the discomfort caused by the blinking for the user is reduced.
[0010]
The invention according to claim 2 , A light source, a heat ray sensor for detecting a heat ray from a human body, a load switch for supplying power from an external power source to a load, and a setting means for setting the light source to either an on or off state; An illuminance sensor that detects illuminance, an illuminance switch that sets the illuminance sensor to either on or off, and when the heat ray is detected by the heat ray sensor, While supplying power to the load with the load switch turned on, Control means for transmitting a blinking control signal for blinking the light source toward the light source, the setting means is another contact that is linked to a contact of the illuminance switch, and the illuminance switch is the illuminance. If the sensor is set to the on state, the power supply path to the light source is cut off, while if the illuminance sensor is set to the off state, the power supply path to the light source is connected. It is characterized by . In this configuration, if the illuminance switch sets the illuminance sensor to the on state, the power supply path to the light source is interrupted, so the light source does not blink in response to the blink control signal. Accordingly, the light source can be blinked when necessary, and the discomfort caused by the blinking for the user is reduced.
[0011]
The invention according to claim 3 , A light source, a heat ray sensor for detecting a heat ray from a human body, a load switch for supplying power from an external power source to a load, and a setting means for setting the light source to either an on or off state; A control unit and an illuminance sensor for detecting illuminance, wherein the setting unit is an illuminance switch that sets the illuminance sensor to either on or off, and the control unit is controlled by the heat ray sensor. When hot rays are detected, While supplying power to the load with the load switch turned on, If the illuminance switch is set to the off state, the light source is blinked, while if the illuminance switch is set to the on state, the blinking of the light source is stopped. It is characterized by . In this configuration, if the illuminance switch is set to the on state, the light source stops blinking, and thus the light source does not blink. Accordingly, the light source can be blinked when necessary, and the discomfort caused by the blinking for the user is reduced. Also, no additional switch is required.
[0012]
The invention according to claim 4 , A light source, a heat ray sensor for detecting a heat ray from a human body, a load switch for supplying power from an external power source to a load, and a setting means for setting the light source to either an on or off state; An illuminance sensor for detecting illuminance, wherein the setting means is an illuminance switch with an inspection function that is set to any one mode of inspection, turning on the illuminance sensor, and turning off the illuminance sensor, When the control means detects the heat ray by the heat ray sensor, While supplying power to the load with the load switch turned on, If the illuminance switch with inspection function is set to the inspection mode, the light source is blinked. On the other hand, if the illuminance switch with inspection function is set to the on or off mode, the blinking of the light source is stopped. It is characterized by . In this configuration, if the illuminance switch with inspection function is set to the on or off mode, the light source stops blinking, and therefore the light source does not blink. Accordingly, the light source can be blinked when necessary, and the discomfort caused by the blinking for the user is reduced. Also, no additional switch is required.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
1 is a block diagram showing an automatic switch with a heat ray sensor according to a first embodiment of the present invention, FIG. 2 is a diagram showing an example of an overview of the automatic switch with a heat ray sensor in FIG. 1, and FIG. FIG. 4 is a diagram showing a circuit example of the brightness sensor adjustment circuit, and FIG. 4 is a diagram showing a circuit example of the LED circuit of FIG. 1. The automatic switch with a heat ray sensor will be described below with reference to these diagrams.
[0014]
This automatic switch with a heat ray sensor includes a heat ray detection circuit 11 including a PIR element (pyroelectric infrared sensor) (not shown) as a heat ray sensor for detecting a heat ray from a human body, a brightness sensor (illuminance) such as CdS for detecting illuminance. Sensor) illuminance detection circuit 12 composed of S12, brightness sensor adjustment circuit 13 composed of brightness sensor adjustment switch (illuminance switch) SW13 for setting the brightness sensor S12 to either on (light or dark) and off, A timer time adjusting circuit 14 including a timer time adjusting volume for adjusting a timer time (not shown), a load control circuit 15 including a switch SW15 for supplying power from an external power source to a load (for example, a lighting fixture), an LED circuit (light source) 16, And rectification of power from external power sources and The power circuit 17 supplies DC power to each unit performed like with comprises similarly to the conventional slip, a switch (setting means) SW18 and sensor control circuit (control means) 19.
[0015]
As shown in FIG. 3, the illuminance detection circuit 12 includes a brightness sensor S12 to which one end and one end (upper end) serving as a common terminal of the brightness sensor adjustment switch SW13 are connected, and the other end and one end of the brightness sensor S12 are connected to each other. Brightness determination for determining whether the ambient illuminance is bright or dark in comparison with a predetermined reference illuminance by taking in the detection result from the connected other end grounded resistor R12 and the upper end of the brightness sensor S12. The circuit 120 is configured.
[0016]
The brightness sensor adjustment circuit 13 includes resistors R130 and R131 having one end connected to the high-potential side output end of the power supply circuit 17, and the high-potential side output end of the power supply circuit 17 serving as the off position and the resistor R130 serving as the bright position. The brightness sensor adjustment switch SW13 is connected to either the other end or the other end of the resistor R131 as a dark position. Thereby, if the brightness sensor adjustment switch SW13 is set to the on (bright or dark) state, the detection result of the ambient illuminance by the brightness sensor S12 is taken into the determination circuit 120, while the brightness sensor adjustment switch SW13. If is set to OFF, a signal whose determination result is dark is taken into the determination circuit 120. In other words, the brightness sensor adjustment switch SW13 sets the brightness sensor S12 to a functioning on or non-functioning state.
[0017]
As shown in FIG. 4, the LED circuit 16 includes a resistor R160 having one end connected to the high potential side output terminal of the power supply circuit 17, a light emitting diode LED16 having an anode connected to the other end of the resistor R160, and the light emitting diode LED16. This is composed of a grounded emitter transistor Tr16 whose collector is connected to the cathode of the transistor, a resistor R161 connected between the base and emitter of the transistor Tr16, and a resistor R162 connected between the base of the transistor Tr16 and the sensor control circuit 19. Has been.
[0018]
The switch SW18 sets the LED circuit 16 to either on or off, and is interposed between a resistor R162 and a base of the transistor Tr16 on a transmission path of an ON control signal described later from the sensor control circuit 19. doing. Thereby, if the switch SW18 is in the OFF state, the light emitting diode LED16 does not blink regardless of the presence or absence of the ON control signal.
[0019]
The sensor control circuit 19 performs overall control of the automatic switch with a heat ray sensor. For example, the sensor control circuit 19 fetches a determination result indicating whether the ambient illuminance is bright or dark from the illuminance detection circuit 12, and the determination result is dark. Only in some cases, if the hot wire is detected by the hot wire detection circuit 11, the switch SW 15 is turned on, and the hot wire is detected by the hot wire detection circuit 11 until the timer time set by the timer time adjustment circuit 14 elapses. If not, the load control circuit 15 is controlled to turn off the switch SW15.
[0020]
Further, when the determination result of the brightness determination circuit 120 is dark, the sensor control circuit 19 transmits an ON control signal to the LED circuit 16 for a predetermined time when a heat ray is detected by the heat ray detection circuit 11. Accordingly, the light-emitting diode LED16 is dark when the switch SW18 is in the on state and blinks when the heat ray is detected, and does not blink when the switch SW18 is in the off state.
[0021]
FIG. 5 is a waveform diagram for explaining the operation of the automatic switch with a heat ray sensor. The operation of the first embodiment will be described below with reference to FIG. However, it is assumed that the determination result by the determination circuit 120 is dark and the switch SW18 is in the on state.
[0022]
When the heat ray is detected by the heat ray detection circuit 11 (time t10), since the determination result by the determination circuit 120 is dark, control to turn on the switch SW15 is performed and an ON control signal is given to the LED circuit 16 in advance. Only sent for hours. As a result, the switch SW15 is turned on to supply power to the load, and the transistor Tr16 is turned on for a predetermined time so that the light emitting diode LED16 blinks.
[0023]
Thereafter, when the switch SW18 is turned off (time t11), the on-control signal from the sensor control circuit 19 is no longer received by the transistor Tr16 of the LED circuit 16, so that the light emitting diode LED16 does not blink. .
[0024]
Thereafter, when the heat ray is detected by the heat ray detection circuit 11 before the timer time elapses (time t12), since the determination result by the determination circuit 120 is dark, control is performed to hold the switch SW15 in the ON state. The ON control signal is transmitted to the LED circuit 16 for a predetermined time. Thereby, the power supply to the load is maintained.
[0025]
Thereafter, when the timer time elapses (time t13), control is performed to turn off the switch SW15. Thereby, the power supply to the load is stopped.
[0026]
Thereafter, when a heat ray is detected by the heat ray detection circuit 11 (time t14), since the determination result by the determination circuit 120 is dark, control to turn on the switch SW15 is performed and the LED circuit 16 is turned on. A signal is transmitted for a predetermined time. Thereby, electric power is supplied to the load. Further, an ON control signal is sent to the LED circuit 16, but the light emitting diode LED16 does not blink because the switch SW18 is in the OFF state.
[0027]
Thereafter, when the timer time elapses (time point t15), control for turning off the switch SW15 is performed. Thereby, the power supply to the load is stopped.
[0028]
As described above, according to the first embodiment, the light-emitting diode LED 16 can be blinked when necessary, and discomfort caused by the blinking to the user can be reduced.
[0029]
6 is a block diagram showing an automatic switch with a heat ray sensor according to a second embodiment of the present invention, FIG. 7 is a view showing an example of an overview of the automatic switch with a heat ray sensor in FIG. 6, and FIG. 8 is an illuminance detection circuit in FIG. FIG. 2 is a diagram illustrating circuit examples of a brightness sensor adjustment circuit and an LED circuit. Hereinafter, the automatic switch with a heat ray sensor will be described with reference to these drawings.
[0030]
This automatic switch with a heat ray sensor includes a heat ray detection circuit 11, an illuminance detection circuit 12, a timer time adjustment circuit 14, a load control circuit 15, an LED circuit 16, a power supply circuit 17, and a sensor control circuit 19 as in the first embodiment. In addition, a brightness sensor adjustment circuit 23 different from the first embodiment is provided.
[0031]
The brightness sensor adjustment circuit 23 includes resistors R130 and R131 and a brightness sensor adjustment switch SW13 as in the first embodiment, and also includes a switch (setting means) SW28 that works in conjunction with the brightness sensor adjustment switch SW13. ing.
[0032]
This switch SW28 cuts off the power supply path to the LED circuit 16 if the brightness sensor adjustment switch SW13 has set the illuminance detection circuit 12 to the on state, while setting the illuminance detection circuit 12 to the off state. If so, the connection of the power supply path to the LED circuit 16 is performed. That is, one end serving as a common terminal of the switch SW28 is connected to one end (upper end) of the resistor R160 in the LED circuit 16, and the brightness sensor adjustment switch SW13 is turned on (bright or dark) or off at the other end of the switch SW28. When this state is set, the switching circuit is switched and connected to either the ground which is turned off or the high potential side output terminal of the power supply circuit 17 which is turned on.
[0033]
As a result, the light emitting diode LED16 does not blink if the brightness sensor adjustment switch SW13 is turned on, and if the brightness sensor adjustment switch SW13 is turned off, if a heat ray is detected, the light emitting diode LED16 is not related to the ambient illuminance. Will blink.
[0034]
FIG. 9 is a waveform diagram for explaining the operation of the automatic switch with a heat ray sensor. The operation of the second embodiment will be described below with reference to FIG. However, the determination result by the determination circuit 120 is dark, and the brightness sensor adjustment switch SW13 is in the off state.
[0035]
When the heat ray is detected by the heat ray detection circuit 11 (time t20), the determination result by the determination circuit 120 is dark, so that the switch SW15 is controlled to be turned on and an on control signal is sent to the LED circuit 16 in advance. Only sent for hours. As a result, the switch SW15 is turned on to supply power to the load, and the transistor Tr16 is turned on for a predetermined time so that the light emitting diode LED16 blinks.
[0036]
Thereafter, when the heat ray is detected by the heat ray detection circuit 11 before the timer time elapses (time t21), the determination result by the determination circuit 120 is dark, so that the control for keeping the switch SW15 in the ON state is performed. The ON control signal is transmitted to the LED circuit 16 for a predetermined time. Thereby, the power supply to the load is maintained and the light emitting diode LED16 blinks.
[0037]
Thereafter, when the timer time elapses (time point t22), control for turning off the switch SW15 is performed. Thereby, the power supply to the load is stopped.
[0038]
Thereafter, when the brightness sensor adjustment switch SW13 is turned on (bright or dark) (time point t23), the light-emitting diode LED16 stops blinking thereafter.
[0039]
Thereafter, when the heat ray is detected by the heat ray detection circuit 11 (time t24), the determination result by the determination circuit 120 is dark, so that the control to turn on the switch SW15 is performed and the LED circuit 16 is turned on. A signal is transmitted for a predetermined time. As a result, the switch SW15 is turned on to supply power to the load. Further, although an ON control signal is transmitted to the LED circuit 16, the light emitting diode LED16 does not blink because the brightness sensor adjustment switch SW13 is set to the on state.
[0040]
Thereafter, when the timer time elapses (time point t25), control for turning off the switch SW15 is performed. Thereby, the power supply to the load is stopped.
[0041]
As described above, according to the second embodiment, the light-emitting diode LED 16 can be blinked when necessary, and discomfort caused by the blinking to the user can be reduced. Thereby, it is possible to automatically blink only when adjusting the detection area of the PIR element that requires blinking of the light emitting diode LED16 (when the brightness sensor adjustment switch is turned off). In addition, the number of parts constituting the instrument does not change, and the instrument can be configured without changing its shape. Furthermore, application to products using logic ICs that are currently on the market becomes easy.
[0042]
FIG. 10 is a block diagram showing an automatic switch with a heat ray sensor according to a third embodiment of the present invention, FIG. 11 is a view showing an example of an overview of the automatic switch with a heat ray sensor in FIG. 10, and FIG. FIG. 3 is a diagram illustrating circuit examples such as a brightness sensor adjustment circuit and an LED circuit. The third embodiment will be described below with reference to these drawings.
[0043]
This automatic switch with a heat ray sensor includes a heat ray detection circuit 11, a brightness sensor adjustment circuit 13, a timer time adjustment circuit 14, a load control circuit 15 and a power supply circuit 17 in the same manner as in the first embodiment, but also in the first implementation. An illuminance detection circuit 32, an LED circuit 36, and a sensor control circuit 39 different from the embodiment are provided.
[0044]
The illuminance detection circuit 32 includes a brightness sensor S12 and a resistor R12 in the same circuit arrangement as in FIG. 3, and the detection result is taken into the sensor control circuit 39 from one end (upper end) of the brightness sensor S12. .
[0045]
The LED circuit 36 includes a resistor R160 and a light emitting diode LED16 in a circuit arrangement similar to that in FIG. 4, and the cathode of the light emitting diode LED16 is connected to the sensor control circuit 39.
[0046]
The sensor control circuit 39 is a microcomputer that performs overall control of the automatic switch with a hot-wire sensor. For example, the detection result of the brightness sensor S12 is taken in and the ambient illuminance is either bright or dark compared to a predetermined reference illuminance. Determine if there is any.
[0047]
Also, the sensor control circuit 39 turns on the switch SW15 and turns on the timer time set by the timer time adjustment circuit 14 if a heat ray is detected by the heat ray detection circuit 11 only when the determination result is dark. If no hot wire is detected by the hot wire detection circuit 11 by the time point elapses, the load control circuit 15 is controlled to turn off the switch SW15.
[0048]
Further, the sensor control circuit 39 determines whether or not the brightness sensor adjustment switch SW13 is in the OFF state. For example, if the detection result of the brightness sensor S12 corresponds to the output voltage of the power supply circuit 17, it is determined that the brightness sensor adjustment switch SW13 is in the off state.
[0049]
Further, when the heat ray detection circuit 11 detects the heat ray, the sensor control circuit 39 sets the brightness sensor adjustment switch SW13 to the off state. While the light emitting diode LED16 blinks, if the brightness sensor adjustment switch SW13 is set to the on state, the light emitting diode LED16 stops blinking.
[0050]
FIG. 13 is a waveform diagram for explaining the operation of the automatic switch with a heat ray sensor. The operation of the third embodiment will be described below with reference to FIG. However, it is assumed that the brightness / darkness determination result is dark and the brightness sensor adjustment switch SW13 is in the off state.
[0051]
When the heat ray is detected by the heat ray detection circuit 11 (time point t30), since the determination result is dark, control for turning on the switch SW15 is performed and control for blinking the light emitting diode LED16 of the LED circuit 16 is performed. Is called. As a result, the switch SW15 is turned on to supply power to the load, and the light emitting diode LED16 blinks.
[0052]
Thereafter, when the heat ray is detected by the heat ray detection circuit 11 before the timer time elapses (time point t31), the determination result is dark, so that the control to keep the switch SW15 in the ON state is performed and the light emitting diode LED16 Control to blink is performed. Thereby, the power supply to the load is maintained and the light emitting diode LED16 blinks.
[0053]
Thereafter, when the timer time elapses (time point t32), control for turning off the switch SW15 is performed. Thereby, the power supply to the load is stopped.
[0054]
Thereafter, when the brightness sensor adjustment switch SW13 is turned on (bright or dark) (time t33), the sensor control circuit 39 thereafter stops blinking of the light emitting diode LED16.
[0055]
Thereafter, when the heat ray is detected by the heat ray detection circuit 11 (time t34), the determination result is dark, so that the switch SW15 is turned on. As a result, the switch SW15 is turned on to supply power to the load.
[0056]
Thereafter, when the timer time elapses (time t35), control is performed to turn off the switch SW15. Thereby, the power supply to the load is stopped. Further, since the sensor control circuit 39 stops the blinking of the light emitting diode LED16, the light emitting diode LED16 does not blink.
[0057]
As described above, according to the third embodiment, the light-emitting diode LED 16 can be blinked when necessary, and uncomfortable feeling caused by the blinking for the user can be reduced. Further, it becomes possible to dispense with a switch. Thereby, it is possible to automatically blink only when adjusting the detection area of the PIR element that requires blinking of the light emitting diode LED16 (when the brightness sensor adjustment switch is turned off). In addition, the number of parts constituting the instrument does not change, and the instrument can be configured without changing its shape. Furthermore, it can be realized only by changing the microcomputer software, and can be produced without changing the manufacturing process such as mounting electronic components.
[0058]
14 is a block diagram showing an automatic switch with a heat ray sensor according to a fourth embodiment of the present invention, FIG. 15 is a view showing an example of an overview of the automatic switch with a heat ray sensor in FIG. 14, and FIG. It is a figure which shows the circuit example of a LED circuit, and demonstrates this automatic switch with a heat ray | wire sensor below using these figures.
[0059]
This automatic switch with a heat ray sensor includes a heat ray detection circuit 11, a timer time adjustment circuit 14, a load control circuit 15, an LED circuit 36, and a power supply circuit 17 in the same manner as in the third embodiment. A different illuminance detection circuit 42, a brightness sensor adjustment switch SW43 as an illuminance switch with inspection function, and a sensor control circuit 49 are provided.
[0060]
The illuminance detection circuit 42 has a brightness sensor S12, a resistor R12, and a resistor R42 connected between one end of the brightness sensor S12 and the high potential side output end of the power supply circuit 17, and one end of the brightness sensor S12. Therefore, the detection result is taken into the sensor control circuit 49.
[0061]
The brightness sensor adjustment switch SW43 is a rotary dip switch that is set to any one of inspection, on (light or dark) of the illuminance detection circuit 42, and off of the illuminance detection circuit 42, and each contact point of the rotary dip switch is set. Information is taken into the sensor control circuit 49.
[0062]
The sensor control circuit 49 is a microcomputer that performs overall control of the automatic switch with a hot wire sensor. For example, the detection result of the brightness sensor S12 is taken in and the ambient illuminance is bright or dark compared to a predetermined reference illuminance. Determine if there is any.
[0063]
In addition, the sensor control circuit 49 turns on the switch SW15 when the heat ray detection circuit 11 detects a heat ray only when the determination result is dark, and sets the timer time set by the timer time adjustment circuit 14 If no hot wire is detected by the hot wire detection circuit 11 by the time point elapses, the load control circuit 15 is controlled to turn off the switch SW15.
[0064]
Further, the sensor control circuit 49 takes in information on each contact of the brightness sensor adjustment switch SW43, and determines whether or not the brightness sensor adjustment switch SW43 is in the inspection mode.
[0065]
Further, when a heat ray is detected by the heat ray detection circuit 11, the sensor control circuit 49 blinks the light emitting diode LED16 of the LED circuit 36 if the brightness sensor adjustment switch SW43 is set to the inspection mode. If the brightness sensor adjustment switch SW43 is set to the on or off mode, the light emitting diode LED16 stops blinking.
[0066]
FIG. 17 is a waveform diagram for explaining the operation of the automatic switch with a heat ray sensor. Hereinafter, the operation of the fourth embodiment will be described with reference to FIG. However, it is assumed that the brightness / darkness determination result is dark and the brightness sensor adjustment switch SW43 is in the inspection mode.
[0067]
When the heat ray is detected by the heat ray detection circuit 11 (time point t40), since the determination result is dark, control for turning on the switch SW15 and control for blinking the light emitting diode LED16 of the LED circuit 36 are performed. Is called. As a result, the switch SW15 is turned on to supply power to the load, and the light emitting diode LED16 blinks.
[0068]
Thereafter, when the brightness sensor adjustment switch SW43 is set to the inspection mode (time point t41), the sensor control circuit 49 thereafter stops blinking of the light emitting diode LED16.
[0069]
Thereafter, when the heat ray is detected by the heat ray detection circuit 11 before the timer time elapses (time t42), the determination result is dark, and therefore, control is performed to hold the switch SW15 in the ON state. Thereby, the power supply to the load is maintained.
[0070]
Thereafter, when the timer time elapses (time t43), control is performed to turn off the switch SW15. Thereby, the power supply to the load is stopped.
[0071]
Thereafter, when the heat ray is detected by the heat ray detection circuit 11 (time t44), since the determination result is dark, control for turning on the switch SW15 is performed. As a result, the switch SW15 is turned on to supply power to the load. Further, since the sensor control circuit 49 stops the blinking of the light emitting diode LED16, the light emitting diode LED16 does not blink.
[0072]
Thereafter, when the timer time elapses (time t45), control is performed to turn off the switch SW15. Thereby, the power supply to the load is stopped.
[0073]
As described above, according to the fourth embodiment, the light-emitting diode LED 16 can be blinked when necessary, and discomfort caused by the blinking to the user can be reduced. In addition, it becomes possible to dispense with a switch.
[0074]
In addition, in the said 1st-4th embodiment, although the example of an outline is the instrument for walls, the said circuit structure is applicable also to the fixture for ceiling mounting.
[0075]
【The invention's effect】
As is apparent from the above, according to the first and second aspects of the invention, the light source can be blinked when necessary, and the discomfort caused by the blinking to the user can be reduced.
[0076]
According to the third and fourth aspects of the invention, the light source can be blinked when necessary, and discomfort caused by the blinking to the user can be reduced. Also, no additional switch is required.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an automatic switch with a heat ray sensor according to a first embodiment of the present invention.
FIG. 2 is a diagram showing an example of an overview of the automatic switch with a heat ray sensor in FIG. 1;
3 is a diagram illustrating a circuit example of an illuminance detection circuit and a brightness sensor adjustment circuit in FIG. 1; FIG.
4 is a diagram illustrating a circuit example such as the LED circuit of FIG. 1;
FIG. 5 is a waveform diagram for explaining the operation of the automatic switch with a heat ray sensor.
FIG. 6 is a block diagram showing an automatic switch with a heat ray sensor according to a second embodiment of the present invention.
7 is a diagram showing an example of an overview of the automatic switch with a heat ray sensor in FIG. 6;
8 is a diagram illustrating circuit examples of the illuminance detection circuit, the brightness sensor adjustment circuit, and the LED circuit in FIG. 6;
FIG. 9 is a waveform diagram for explaining the operation of the automatic switch with a heat ray sensor.
FIG. 10 is a block diagram showing an automatic switch with a heat ray sensor according to a third embodiment of the present invention.
11 is a diagram showing an example of an overview of the automatic switch with a heat ray sensor in FIG. 10;
12 is a diagram illustrating circuit examples such as an illuminance detection circuit, a brightness sensor adjustment circuit, and an LED circuit in FIG. 10;
FIG. 13 is a waveform diagram for explaining the operation of the automatic switch with a heat ray sensor.
FIG. 14 is a block diagram showing an automatic switch with a heat ray sensor according to a fourth embodiment of the present invention.
15 is a diagram showing an example of an overview of the automatic switch with a heat ray sensor in FIG. 14;
16 is a diagram illustrating a circuit example of an illuminance detection circuit and an LED circuit in FIG. 14;
FIG. 17 is a waveform diagram for explaining the operation of the automatic switch with a heat ray sensor.
[Explanation of symbols]
11 Heat detection circuit
12, 32, 42 Illuminance detection circuit
13, 23 Brightness sensor adjustment circuit
14 Timer time adjustment circuit
15 Load control circuit
16, 36 LED circuit
17 Power supply circuit
19, 39, 49 Sensor control circuit
S12 Brightness sensor
SW13, SW43 Brightness sensor adjustment switch
SW18, SW28 switch

Claims (4)

A light source;
A heat ray sensor for detecting heat rays from the human body;
A load switch for supplying power from an external power source to the load;
When the heat ray is detected by the heat ray sensor, the load switch is turned on to supply power to the load, and a control means for transmitting a blinking control signal for blinking the light source to the light source When,
Comprising a switch interposed on the transmission path of the blinking control signal from the control means, and setting means for setting the light source to either the on or off state,
When the heat ray is detected by the heat ray sensor, the light source is blinked if the light source is turned on by the setting means, while the light source is turned off by the setting means. Stop flashing the light source
An automatic switch with a heat ray sensor. A light source;
A heat ray sensor for detecting heat rays from the human body;
A load switch for supplying power from an external power source to the load;
Setting means for setting the light source to either on or off;
An illuminance sensor for detecting illuminance;
An illuminance switch that sets the illuminance sensor to either on or off;
When the heat ray is detected by the heat ray sensor, the load switch is turned on to supply power to the load, and a control means for transmitting a blinking control signal for blinking the light source to the light source And <br/>
The setting means, wherein Ri another contact der in conjunction with contact with the illuminance switch, whereas the illumination switch performs interruption of power supply path to the source mode. If the illuminance sensor input state If the illuminance sensor is set to the off state, the power supply path is connected to the light source.
An automatic switch with a heat ray sensor. A light source;
A heat ray sensor for detecting heat rays from the human body;
A load switch for supplying power from an external power source to the load;
Setting means for setting the light source to either on or off;
Control means;
An illuminance sensor that detects illuminance
With
The setting means is an illuminance switch that sets the illuminance sensor to either on or off,
When the heat ray is detected by the heat ray sensor , the control means turns on the load switch to supply power to the load, and if the illuminance switch is set to the off state, the light source Blinks , if the illumination switch is set to on , the blinking of the light source is stopped.
An automatic switch with a heat ray sensor. A light source;
A heat ray sensor for detecting heat rays from the human body;
A load switch for supplying power from an external power source to the load;
Setting means for setting the light source to either on or off;
Control means;
An illuminance sensor for detecting illuminance,
The setting means is an illuminance switch with an inspection function that is set to any mode of inspection, turning on the illuminance sensor , and turning off the illuminance sensor ,
When the heat ray is detected by the heat ray sensor, the control means supplies power to the load with the load switch turned on, and the illumination switch with inspection function is set to an inspection mode. If the illumination switch with inspection function is set to ON or OFF mode , the light source stops blinking.
An automatic switch with a heat ray sensor.

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