JP2024169166A - Sensor switch, control program - Google Patents

Abstract

To provide a sensor switch with highly airtight.SOLUTION: A detection sensor unit 15 is configured to send radio waves, receive the reflected wave thereof, and output detection data. A control unit 20 outputs a signal to a load based on the detection data input from the detection sensor unit 15. A motion detection unit 21 identifies the position, movement, or shape of a moving object in the detection range based on the detection data. A settings adjustment unit 22 adjusts the settings of the sensor switch 1 or the load based on the position, movement, or shape of the moving object identified by the motion detection unit 21.SELECTED DRAWING: Figure 4

Description

This disclosure relates to a sensing switch and control program installed in a building.

When designing a home, it is important to keep out outside air and maintain the temperature and humidity inside, and there is a demand for buildings that can provide a comfortable living environment that is warm in the winter and cool in the summer. In recent years, the Agency for Natural Resources and Energy has also been promoting ZEH (net Zero Energy House) as an energy-saving initiative. This has led to a demand for highly airtight and highly insulated electrical equipment, wiring devices, etc. within the building.

A heat sensor switch is one type of electrical equipment and wiring device used in a building. A heat sensor switch detects heat rays emitted from the human body to determine whether or not a person is present within a specific detection range, and controls the load of lighting fixtures, etc. depending on the presence or absence of a person. For ceiling-embedded heat sensor switches, the settings are generally performed using a manual switch.

In the heat-sensing switch disclosed in Patent Document 1, adjustment knobs 53a and 54a of the adjustment volume that adjust the brightness threshold and the lighting duration, respectively, and an operating knob 55a of the mode change switch that switches the operating mode of the control circuit are arranged on the underside of the device body 1 (see FIG. 1 of Patent Document 1). The plate 10 that covers the underside of the device body 1 has insertion holes 11d and 11d and a square hole 11c that expose the adjustment knobs 53a and 54a and the operating knob 55a.

JP 2003-7180 A

However, these adjustment parts create gaps that connect to the ceiling, which reduces the airtightness of the building. In addition, it is common to cover knobs 53a, 54a, and 55a to prevent them from being easily operated, but covering the sensor switch makes it difficult to achieve a flat design and a low profile. The design is also reduced. Furthermore, providing knobs 53a, 54a, and 55a and covers increases the number of parts and costs.

This disclosure has been made in light of these circumstances, and its purpose is to provide a highly airtight sensing switch.

In order to solve the above problems, a sensing switch according to an embodiment of the present disclosure includes a detection sensor unit that transmits radio waves, receives reflected waves, and outputs detection data, and a control unit that outputs a signal to a load based on the detection data input from the detection sensor unit. The control unit includes a moving object detection unit that identifies the position, movement, or shape of a moving object present within a detection range based on the detection data, and a setting adjustment unit that adjusts the settings of the sensing switch or the load based on the position, movement, or shape of the moving object identified by the moving object detection unit.

In addition, any combination of the above components and conversions of the expressions of this disclosure between devices, systems, methods, computer programs, etc. are also valid aspects of this disclosure.

This disclosure makes it possible to realize a highly airtight sensing switch.

FIG. 2 is a front view of a ceiling-mounted sensing switch according to a first comparative example. FIG. 11 is a front view of a wall-mounted sensing switch according to Comparative Example 2. FIG. 2 is a front view of the ceiling-mounted sensing switch according to the embodiment. FIG. 2 is a functional block diagram of a ceiling-mounted sensing switch according to an embodiment. 13 is a diagram showing an example of selection items presented on a display surface on the annular plate of the container; FIG. FIG. 13 is a diagram illustrating an example of a conversion table for gesture operations according to an embodiment. FIG. 6 is a diagram showing a state in which the operating ambient illuminance of the brightness sensor is changed from the setting state shown in FIG. 5 . 8(a)-(b) are diagrams showing the state of a hand Ha for operating a sensor switch embedded in a ceiling and a first example of three-dimensional point cloud data of the hand detected by the detection sensor unit. 9(a)-(b) are diagrams showing the state of a hand Ha for operating a sensor switch embedded in a ceiling and a second example of three-dimensional point cloud data of the hand detected by the detection sensor unit. 10(a)-(b) are diagrams showing the state of a hand Ha for operating a sensor switch embedded in a ceiling and a third example of three-dimensional point cloud data of the hand detected by the detection sensor unit. FIG. 13 is a diagram showing an example in which a user changes the value of a setting item by making a gesture of drawing a circle in the air with the index finger of the hand.

Figure 1 is a front view of a ceiling-mounted sensor switch 1 according to Comparative Example 1. The sensor switch 1 according to Comparative Example 1 is installed on the ceiling of a toilet or the like. The body 1a of the sensor switch 1 is fixed in a mounting hole provided in the construction surface (the ceiling in Comparative Example 1) with a portion of the depth direction embedded. The body 1a has an annular plate exposed from the construction surface and a cylindrical support embedded in the construction surface, and the annular plate is fixed to the support by a screw 1c. The sensor switch 1 is connected to a load, and functions as an automatic switch that automatically turns on the load (a ventilation fan in Comparative Example 1) when it detects human movement or the like, and automatically turns off the load after a certain period of time.

A heat sensor 10h is installed in the center of the annular plate of the device body 1a. The heat sensor 10h has a beam-shaped detection range, and when it detects a change in the heat level in the detection range (for example, a temperature change of 3°C or more), it sends a detection signal to the control circuit. Normally, when a person enters the detection range, the heat level rises by 3°C or more. When the control circuit receives a detection signal from the heat sensor 10h, it operates the ventilation fan. At the same time, the control circuit can also turn on the lighting fixture. When no person is detected in the detection range, the control circuit stops the ventilation fan after the set operation retention time. If the lighting fixture was turned on, it also turns off the lighting fixture.

An operation hold time adjustment knob 51 and an intermittent operation time adjustment knob 52 are installed below the heat sensor 10h on the annular plate of the device body 1a. The user or installer (hereinafter, collectively referred to as the user, etc.) can adjust the position of the operation hold time adjustment knob 51 to set the operation duration of the ventilation fan after the fan starts operating as a trigger when a person is detected. In the example shown in Figure 1, the setting can be made within the range of 10 seconds to 30 minutes. The user, etc. can also set the ventilation fan to be always off by adjusting the position of the operation hold time adjustment knob 51 to "off". The user, etc. can also set the ventilation fan to be always on by adjusting the position of the operation hold time adjustment knob 51 to "continuous on".

The user can operate the ventilation fan intermittently by adjusting the position of the intermittent operation time adjustment knob 52 to a position other than "off." In intermittent operation, the ventilation fan operates at regular intervals (for example, every hour) regardless of whether a person is detected. The user can set the operation time for intermittent operation by adjusting the position of the intermittent operation time adjustment knob 52. In the example shown in Figure 1, the operation time can be set within the range of 30 seconds to 50 minutes.

After adjusting the operation hold time or intermittent operation time, the user places the cover plate 10b over the annular plate of the body 1a. In the sensing switch 1 according to Comparative Example 1, the knobs 51 and 52 are tall, so the cover plate 10b has a certain bulge in relation to the ceiling surface, making it difficult to design it flat against the ceiling surface.

Figure 2 is a front view of a wall-mounted sensor switch 1 according to Comparative Example 2. The sensor switch 1 according to Comparative Example 2 is installed on an inner wall of a building or the like. The body 1a of the sensor switch 1 is fixed in a mounting hole provided in the construction surface (a side wall in Comparative Example 2) with a portion of the depth direction embedded. The body 1a has a rectangular plate exposed from the construction surface and a body embedded in the construction surface. The sensor switch 1 is connected to a load, and functions as an automatic switch that automatically turns on the load (a lighting fixture in Comparative Example 2) when it detects human movement or the like, and automatically turns off the load after a certain period of time.

A heat sensor 10h and a brightness sensor (illuminance sensor) are installed under the rectangular plate of the device body 1a. When the heat sensor 10h detects a change in the heat level within the detection range (for example, a temperature change of 3°C or more), it sends a detection signal to the control circuit. The brightness sensor measures the ambient illuminance and sends the measured illuminance to the control circuit.

A manual switch 54 is installed above the thermal sensor 10h on the rectangular plate of the device body 1a. A user or the like sets the operating mode by switching the position of the manual switch 54 between "off", "automatic", and "continuous on". For example, adjusting the manual switch 54 to the left position selects "off", adjusting it to the center position selects "automatic", and adjusting it to the right position selects "continuous on". When "off" is selected, the lighting device is set to a mode in which it is always off. When "automatic" is selected, the lighting device is set to an automatic mode in which the lighting device is automatically turned on when a person is detected. When "continuous on" is selected, the lighting device is set to a mode in which it is always on.

Above the manual switch 54 on the rectangular plate of the device body 1a, an operation hold time adjustment knob 51 and a brightness sensor adjustment knob 53 are provided. By adjusting the position of the operation hold time adjustment knob 51, the user can set the duration of time that the lighting device remains on after the lighting device starts to turn on in automatic mode as a trigger for human detection. In the example shown in Figure 2, the duration can be set within the range of 10 seconds to 30 minutes.

By adjusting the position of the brightness sensor adjustment knob 53, the user can set the operating ambient illuminance at which the brightness sensor works in the automatic mode. In the example shown in FIG. 2, the operating ambient illuminance can be set in the range of "dark" (5 lx) to "bright" (200 lx). When the ambient illuminance measured by the brightness sensor is lower (dark) than the set operating ambient illuminance, the control circuit turns on the lighting device if a person enters the detection range. When the measured ambient illuminance is higher (bright) than the set operating ambient illuminance, the lighting device is not turned on even if a person is detected. Note that the user can also set the mode in which the lighting device turns on when a person enters the detection range regardless of the surrounding brightness by adjusting the position of the brightness sensor adjustment knob 53 to "off".

After adjusting the operation hold time or the brightness sensor, the user closes the door 1d that hides the knobs 51 and 53. In the sensor switch 1 according to the second comparative example, the manual switch 54 is installed, which reduces the design.

Figure 3 is a front view of a ceiling-mounted sensing switch 1 according to the embodiment. The body 1a of the sensing switch 1 according to the embodiment is fixed in a mounting hole provided in a construction surface (the ceiling in the embodiment) with a portion of the body 1a embedded in the depth direction. Compared to the sensing switch 1 according to the comparative example 1 shown in Figure 1, no physical parts, including an operating knob, are arranged on the annular plate of the body 1a exposed from the construction surface. The annular plate has a flat shape without any irregularities, and protrusion from the ceiling surface is kept to a minimum.

In the sensor switch 1 according to the embodiment, a radio wave sensor using millimeter waves is used as a sensor for detecting a person instead of a thermal sensor. The radio wave sensor is installed on the back side of the annular plate (inside the ceiling). A brightness sensor is also installed near the radio wave sensor. The sensor switch 1 is operated by gestures.

Figure 4 is a functional block diagram of a ceiling-mounted sensing switch 1 according to an embodiment. The sensing switch 1 according to the embodiment includes a sensing sensor unit 15, a control unit 20, a storage unit 30, and a presentation unit 40. The sensing sensor unit 15 transmits 60 GHz millimeter waves, receives the reflected waves, generates three-dimensional point cloud data, and outputs it to the control unit 20 as sensing data.

The detection sensor unit 15 in this embodiment includes a synthesizer, one transmitting antenna, three receiving antennas, a mixer, an A/D converter, and DSP (Digital Signal Processing). The synthesizer generates a chirp signal whose frequency changes linearly over time using the FMCW (Frequency Modulated Continuous Wave) method. The transmitting antenna transmits the chirp signal generated by the synthesizer as a transmission wave toward the detection range. Each receiving antenna receives the chirp signal reflected by an object within the detection range as a reflected wave. The reflected wave has a delay proportional to the distance relative to the transmitted wave.

The mixer generates an IF signal by mixing the reflected wave and the transmitted wave. The frequency of the generated IF signal becomes lower the closer the object is to the detection sensor unit 15, and becomes higher the farther the object is. The A/D converter converts the IF signal generated by the mixer into a digital value.

The DSP converts the digitalized IF signal into a frequency domain signal to generate the distance to the object, the object's speed, and the angle to the object. For example, the DSP performs FFT (Fast Fourier Transformation) processing (distance FFT processing) on the IF signal to generate the frequency spectrum of the IF signal. The distance to the object is calculated based on the peak of the frequency spectrum. If multiple objects are present within the detection range, multiple peaks will appear.

The DSP calculates the speed of an object by performing further FFT processing (Doppler FFT) on the output after multiple distance FFT processing, which is obtained from the reflected waves of multiple chirp signals transmitted at regular time intervals. A frequency spectrum is obtained by accumulating the phase changes of the peaks of the IF signal, and the speed of the object is calculated based on the peaks of this frequency spectrum. If multiple moving objects are present within the detection range, multiple peaks will appear.

The DSP performs further FFT processing (angle FFT) on the output after Doppler FFT of multiple chirp signals received by multiple receiving antennas to calculate the angle of the object. The difference in distance from the object to each receiving antenna causes a phase difference in the peak of the frequency spectrum. The angle of arrival (AoA) is calculated using the phase difference of the peak between the receiving antennas.

The detection sensor unit 15 generates three-dimensional point cloud data based on the distance and angle to the object based on the reflected waves received by the three receiving antennas, and outputs the generated three-dimensional point cloud data to the control unit 20. If the object is moving, the detection sensor unit 15 outputs three-dimensional point cloud data that changes in real time to the control unit 20.

The control unit 20 outputs a signal to a load based on the three-dimensional point cloud data input from the detection sensor unit 15. In this embodiment, a lighting fixture 2 is assumed as the load. Note that the load is not limited to the lighting fixture 2, and may be a ventilation fan, an air conditioner, an escalator, security equipment, etc.

The control unit 20 includes a moving object detection unit 21, a setting adjustment unit 22, a signal transmission unit 23, and a guide control unit 24. The control unit 13 can be realized by a combination of hardware resources and software resources, or by hardware resources alone. As hardware resources, analog circuits, logic circuits, microcontrollers, DSPs, ROMs, RAMs, GPUs, ASICs, FPGAs, and other LSIs can be used. As software resources, programs such as firmware can be used.

The storage unit 30 includes a non-volatile memory such as an EEPROM (Electrically Erasable Programmable Read-Only Memory) or a NAND flash memory, and stores a conversion table 30a for gesture operations. If the capacity of the conversion table 30a is small, the conversion table 30a may be stored in a ROM in the control unit 20. The conversion table 30a may also be written in advance in the source code of the program executed by the control unit 20. In these cases, the storage unit 30 can be omitted.

The moving object detection unit 21 detects whether or not a moving object is present within the detection range based on the three-dimensional point cloud data input from the detection sensor unit 15. Even if an object is detected within the detection range, if the object is stationary, the moving object detection unit 21 ignores the object. The moving object detection unit 21 can determine whether a detected object is moving or stationary by comparing the three-dimensional point cloud data in the time direction.

When a moving object is detected within the detection range, the moving object detection unit 21 identifies the position, movement, or shape of the detected moving object. The setting adjustment unit 22 can adjust the settings of the sensing switch 1 or the lighting device 2 based on the position, movement, or shape of the moving object identified by the moving object detection unit 21.

When the moving object detection unit 21 detects the approach of a moving object to a specific position, a specific movement of a moving object, or a specific shape of a moving object, the setting adjustment unit 22 switches the sensing switch 1 to the construction mode. For example, the setting adjustment unit 22 switches to the construction mode when a moving object such as a finger or a rod-shaped pointing tool approaches the detection sensor unit 15 within a specific distance (for example, 10 cm). For example, the setting adjustment unit 22 switches to the construction mode when the point located at the top of the Z axis in the three-dimensional point cloud data is located at a position equivalent to within 10 cm from the detection sensor unit 15. When the mode switches to the construction mode, the guide control unit 24 generates a guide corresponding to the selected item on the display surface on the annular plate of the device 1a exposed from the mounting hole on the construction surface.

Figure 5 is a diagram showing an example of selection items presented on the display surface on the annular plate of the device 1a. In the example shown in Figure 5, in the installation mode, the operation hold time during which the lighting fixture 2 remains on after a person is detected and the operating ambient illuminance at which the brightness sensor operates can be set. In the example shown in Figure 5, the operation hold time can be selected as 1 minute, 5 minutes, 10 minutes, or 30 minutes, and the operating ambient illuminance can be selected as 10 lx, 50 lx, 100 lx, or 200 lx. The annular plate is divided into eight parts in the circumferential direction, with four options for the operation hold time being assigned to the four areas at the top, bottom, left, and right, and four options for the operating ambient illuminance being assigned to the four areas at the diagonal.

Specifically, the character "1 minute" is printed in the left region of the annular plate, and the first LED 40a is embedded. The character "5 minutes" is printed in the upper region of the annular plate, and the second LED 40b is embedded. The character "10 minutes" is printed in the right region of the annular plate, and the third LED 40c is embedded. The character "30 minutes" is printed in the lower region of the annular plate, and the fourth LED 40d is embedded. The character "10lx" is printed in the upper right region of the annular plate, and the fifth LED 40e is embedded. The character "50lx" is printed in the lower right region of the annular plate, and the sixth LED 40f is embedded. The character "100lx" is printed in the lower left region of the annular plate, and the seventh LED 40g is embedded. The character "200lx" is printed in the upper left region of the annular plate, and the eighth LED 40h is embedded.

When the mode is switched to the construction mode, the guide control unit 24 turns on the LEDs that correspond to the current settings of the operation hold time and the operating ambient illuminance. In the example shown in FIG. 5, the operation hold time is set to 5 minutes, the operating ambient illuminance is set to 50 lx, and the guide control unit 24 turns on the second LED 40b and the sixth LED 40f. In addition, when the mode is normal, not the construction mode, the first LED 40a to the eighth LED 40h are all turned off.

The conversion table 30a for gesture operations stores multiple selection items and multiple positions associated with each selection item. In this embodiment, each position associated with each selection item is defined as a space in three-dimensional coordinates.

Figure 6 is a diagram showing an example of a conversion table 30a for gesture operations according to an embodiment. Four selection items (1 minute, 5 minutes, 10 minutes, 30 minutes) for the operation retention time are associated with specific spaces extending vertically toward the floor from the left area, upper area, lower area, and right area on the XY plane of the annular plate. Four selection items (10 lx, 50 lx, 100 lx, 200 lx) for the operating ambient illuminance of the brightness sensor are associated with specific spaces extending vertically toward the floor from the upper right area, lower right area, lower left area, and upper left area on the XY plane of the annular plate.

In the construction mode, when a representative point of the three-dimensional point cloud data input from the detection sensor unit 15 enters any of the specific spaces defined in the conversion table 30a, the setting adjustment unit 22 changes the setting of the lighting fixture 2 to the value of the selection item associated with that specific space.

Figure 7 is a diagram showing a state in which the operating ambient illuminance of the brightness sensor has been changed from the setting state shown in Figure 5. When the hand Ha of a user or the like enters a specific space in the lower left area of the annular plate, the setting adjustment unit 22 changes the operating ambient illuminance of the brightness sensor from 50 lx to 100 lx. In response to the change in the setting of the operating ambient illuminance of the brightness sensor, the guide control unit 24 turns off the sixth LED 40f and turns on the seventh LED 40g. This allows the user or the like to confirm that the setting change of the operating ambient illuminance of the brightness sensor has been completed.

The examples of the selection items shown in FIG. 5 and FIG. 7 are merely examples, and other examples may be used. For example, the text portions of "1 min", "5 min", "10 min", "30 min", "10 lx", "50 lx", "100 lx", and "200 lx" may be formed from a light-transmitting material, and the first LED 40a to the eighth LED 40h may be installed separately on the back side of each text portion. In this case, when the guide control unit 24 turns on a specific LED, the text corresponding to that LED lights up and becomes visible to the user, etc. When the LED is off, the text cannot be seen by the user, etc.

A display (e.g., an organic electroluminescence display, liquid crystal display) may be installed on the display surface of the annular plate of the device body 1a. In that case, the guide control unit 24 can display guidance for changing settings on the display in the construction mode.

The signal transmission unit 23 can transmit a control signal including the setting information determined by the setting adjustment unit 22 to a device linked to the sensing switch 1. For example, the signal transmission unit 23 can transmit a control signal including the setting information to a parent unit or child unit of the sensing switch 1 linked to the sensing switch 1. If a controller is installed in the lighting fixture 2, the signal transmission unit 23 can transmit a control signal including the setting information to the controller. Note that the sensing switch 1 may be configured to directly drive the lighting fixture 2. In the case where the sensing switch 1 and the lighting fixture 2 are in a 1:1 closed relationship and the sensing switch 1 is configured to directly drive the lighting fixture 2, the signal transmission unit 23 can be omitted.

Figures 8(a)-(b) show the state of hand Ha for operating the sensing switch 1 embedded in the ceiling, and a first example of three-dimensional point cloud data of hand Ha detected by the detection sensor unit 15. Point C0 (x=0, y=0, z=0) in the coordinate space shown in Figure 8(b) indicates the central coordinates of the surface of the detection sensor unit 15. The Z axis indicates the height direction of the building, and z=0 indicates the height of the detection sensor unit 15 from the floor. The example shown in Figure 8(a) shows a state in which the user has brought the index finger of hand Ha close to the surface of the detection sensor unit 15 until it almost touches the central position.

Figures 9(a)-(b) show the state of hand Ha for operating a sensing switch 1 embedded in the ceiling, and a second example of three-dimensional point cloud data of hand Ha detected by the detection sensor unit 15. The state shown in Figure 9(a) shows a state in which the user's hand Ha shown in Figure 8(a) is extended toward the sensing switch 1, but is now contracted and separated from the sensing switch 1. The three-dimensional point cloud data shown in Figure 9(b) has moved overall in the negative direction (towards the floor) on the Z axis compared to the three-dimensional point cloud data shown in Figure 8(b).

Figures 10(a)-(b) show the state of hand Ha for operating sensing switch 1 embedded in the ceiling, and a third example of 3D point cloud data of hand Ha detected by detection sensor unit 15. The coordinate space shown in Figure 10(b) is drawn with the Z axis in the depth direction, from a perspective looking down from the ceiling to the floor. The example shown in Figure 10(a) shows a state in which the user presses the index finger of hand Ha against the right side of detection sensor unit 15 as viewed from the ceiling surface.

In the construction mode, when a representative point of the three-dimensional point cloud data input from the detection sensor unit 15 enters any of the specific spaces defined in the conversion table 30a for gesture operations, the setting adjustment unit 22 recognizes that an operation to select a selection item linked to the specific space has been performed. For example, the representative point may be set to the point closest to the detection sensor unit 15 in the Z-axis direction, or may be set to the average or median of a predetermined number of points closest to the detection sensor unit 15 in the Z-axis direction.

In the explanation so far, a conversion table 30a linking multiple selection items with multiple specific spaces has been used as the conversion table 30a for gesture operation. In this regard, a conversion table 30a linking multiple selection items with the movement of a moving object may be used as the conversion table 30a for gesture operation. The movement of a moving object may be, for example, the movement of a person's hand. The hand movement may include, for example, a movement of drawing a circle in the air, a movement of drawing a X in the air, a movement of drawing a triangle in the air, etc.

The moving object detection unit 21 tracks the trajectory of the representative points of the three-dimensional point cloud data input from the detection sensor unit 15, and identifies the movement of the moving object. In the construction mode, when the movement of the moving object identified by the moving object detection unit 21 corresponds to one of the multiple movements of the moving object defined in the conversion table 30a, the setting adjustment unit 22 recognizes that an operation has been performed to select a selection item linked to the selection item corresponding to the movement of the moving object.

Figure 11 is a diagram showing an example in which a user changes the value of a setting item by making a gesture of drawing a circle in the air with the index finger of hand Ha. For example, the action retention time may be set to be adjustable by drawing a circle in the air clockwise, and the action ambient illuminance may be set to be adjustable by drawing a circle in the air counterclockwise. The value of the action retention time or action ambient illuminance may be set to be finely adjustable. For example, the movement angle (0-360°) of the finger drawing a circle clockwise may correspond to the action retention time (0-30 minutes), and the action retention time may be set to count up by 1 minute every time the angle advances by 12°.

In addition, a conversion table 30a that links multiple selection items with the shape of a moving object may be used as the conversion table 30a for gesture operations. The shape of the moving object may be, for example, a human hand pose. The hand pose may include, for example, rock, scissors, paper, a pose with one finger up, a pose with three fingers up, a pose with four fingers up, etc.

The moving object detection unit 21 converts the three-dimensional point cloud data input from the detection sensor unit 15 into a 3D model and into mesh data or surface data. The moving object detection unit 21 identifies the shape of the moving object by performing pattern recognition on the converted mesh data or surface data. In the construction mode, when the shape of the moving object identified by the moving object detection unit 21 corresponds to one of the multiple shapes of moving objects defined in the conversion table 30a, the setting adjustment unit 22 recognizes that an operation has been performed to select a selection item linked to a selection item corresponding to the shape of the moving object.

Note that a learning model of each gesture for operation may be generated by performing machine learning in advance using a large number of 3D point cloud data of each gesture for operation by a human hand as learning data and each selection item as teacher data. In this case, a conversion table 30a is generated as a conversion table 30a for gesture operation, linking multiple selection items with parameters of the learning model of multiple gestures.

The moving object detection unit 21 inputs the three-dimensional point cloud data input from the detection sensor unit 15 into a learning model and generates a parameter set for the three-dimensional point cloud data. The setting adjustment unit 22 refers to the conversion table 30a and recognizes that an operation has been performed to select a selection item linked to a parameter set that is most similar to the parameter set of the generated three-dimensional point cloud data.

Note that a classifier for each gesture may be generated using machine learning. When using a learning model or classifier generated by machine learning, it becomes possible to recognize more complex gestures.

When in the construction mode, for example, a moving object such as a hand or a pointing tool moves a predetermined distance (e.g., 10 cm) or more away from the detection sensor unit 15, the setting adjustment unit 22 ends the construction mode. Note that the transition operation to or termination operation of the construction mode may be executed by the pose or movement of the hand.

In normal mode, if the position, movement, or shape of a moving object detected in the detection range does not correspond to an operation to transition to construction mode, the moving object detection unit 21 outputs a detection signal to the signal transmission unit 23. The signal transmission unit 23 transmits a turn-on instruction signal to the controller of the lighting fixture 2. Note that if the illuminance input from the brightness sensor is higher than the set ambient illuminance for operation, the signal transmission unit 23 does not transmit the turn-on instruction signal. When the controller of the lighting fixture 2 receives the turn-on instruction signal from the signal transmission unit 23, it turns on the lighting fixture 2.

When the set operation hold time has elapsed since transmitting the turn-on instruction signal, the signal transmitting unit 23 transmits a turn-off instruction signal to the controller of the lighting fixture 2. When the controller of the lighting fixture 2 receives the turn-off instruction signal, it turns off the lighting fixture 2.

A learning model of the behavior of a person entering the detection range may be generated by performing machine learning in advance on a large number of 3D point cloud data of the behavior of a person entering the detection range. In this case, the moving object detection unit 21 can detect only people entering the detection range among the moving objects detected in the detection range. The signal transmission unit 23 transmits a turn-on instruction signal to the controller of the lighting device 2 only when a person enters the detection range. In this case, this leads to a reduction in the number of unnecessary turns-on of the lighting device 2.

As described above, according to this embodiment, the physical switch can be eliminated from the sensing switch 1, and gaps caused by the physical switch can be eliminated. This improves the airtightness and insulation of the building. It also contributes to the realization of ZEH. Furthermore, by eliminating the physical switch, the surface of the annular plate can be designed flat, improving the design. Furthermore, since design related to the physical switch is no longer necessary, it also contributes to cost reduction and shortening of delivery time.

The present disclosure has been described above based on examples. These examples are merely illustrative, and those skilled in the art will understand that various modifications are possible in the combination of each component and each processing process, and that such modifications are also within the scope of the present disclosure.

In FIG. 5, an example is described in which the operation hold time during which the lighting device 2 remains on and the selection item for the operating ambient illuminance at which the brightness sensor operates are simultaneously presented. In this regard, a specification may be adopted in which the setting items are switched in order by a predetermined gesture, and a selection item is presented for each setting item. Note that the setting items may include a dimming level.

In the above embodiment, an example was shown in which a 60 GHz band millimeter wave sensor was used, but a 24 GHz band, 76 GHz band, 79 GHz band, or 94 GHz band millimeter wave sensor may also be used. Also, LiDAR (Light Detection and Ranging) may be used instead of a millimeter wave sensor.

The embodiment may be specified by the following:

[Item 1]
a detection sensor unit (15) that transmits radio waves, receives reflected waves, and outputs detection data;
a control unit (20) that outputs a signal to a load (2) based on detection data input from the detection sensor unit (15),
The control unit (20)
A moving object detection unit (21) that identifies the position, movement, or shape of a moving object present within a detection range based on the detection data;
a setting adjustment unit (22) that adjusts the setting of the sensing switch (1) or the load (2) based on the position, movement, or shape of the moving object identified by the moving object detection unit (21);
A sensing switch (1) comprising:
According to this, even if the physical switch is eliminated, it is possible to realize a sensing switch (1) that allows the settings of the sensing switch (1) or the load (2) to be adjusted.
[Item 2]
The sensing switch (1) according to item 1, further comprising a signal transmission unit (23) that transmits a control signal including the setting information determined by the setting adjustment unit (22) to a device (2) linked to the sensing switch (1).
This makes it possible to notify the device (2) linked to the sensing switch (1) of the setting information set in the sensing switch (1).
[Item 3]
The system further includes a table (30a) in which a plurality of selection items are associated with a plurality of positions;
The sensing switch (1) described in item 1 is characterized in that, when the position of the moving object identified by the moving object detection unit (21) corresponds to any one of the multiple positions defined in the table (30a), the setting adjustment unit (22) recognizes that an operation has been performed to select a selection item linked to the position of the moving object.
This allows the selection of an option by pointing at a location with a hand or a pointing tool.
[Item 4]
The apparatus further includes a table (30a) in which a plurality of selection items are associated with a plurality of movements of the moving object,
The sensing switch (1) described in item 1 is characterized in that, when the movement of the moving object identified by the moving object detection unit (21) corresponds to any one of a plurality of movements of the moving object defined in the table (30a), the setting adjustment unit (22) recognizes that an operation has been performed to select a selection item linked to the movement of the moving object.
This allows the selection of options by moving the hand or a pointing tool.
[Item 5]
The apparatus further includes a table (30a) in which a plurality of selection items are associated with the shape of the moving object,
The sensing switch (1) described in item 1 is characterized in that, when the shape of the moving object identified by the moving object detection unit (21) corresponds to any one of a plurality of shapes of the moving object defined in the table (30a), the setting adjustment unit (22) recognizes that an operation has been performed to select an option corresponding to the shape of the moving object.
This allows the selection of options to be performed by changing the pose of the hand.
[Item 6]
The sensing switch (1) according to any one of items 1 to 4, characterized in that the setting adjustment unit (22) transitions to a construction mode when the moving object detection unit (21) detects the approach of the moving object to a specific position, a specific movement of the moving object, or a specific shape of the moving object.
This allows the mode to be switched to the construction mode by a gesture operation.
[Item 7]
The sensing switch (1) described in any one of items 1 to 4, characterized in that the detection sensor unit (15) generates three-dimensional point cloud data based on the received reflected waves and outputs the generated three-dimensional point cloud data to the control unit (20).
This makes it possible to recognize the position, movement, or shape of a moving object based on the three-dimensional point cloud data.
[Item 8]
The sensing switch (1) is
The display device further includes a body (1a) that is fixed in a mounting hole provided on a construction surface with a part of the body being embedded therein and has a display surface exposed through the mounting hole;
The control unit (20)
The sensing switch (1) described in item 6 further includes a guide control unit (20) that generates a guide corresponding to at least one selection item on the display surface when the operation mode is switched to the construction mode.
According to this, by presenting a guide of selection items to the user, usability can be improved.
[Item 9]
The sensor switch (1) described in item 8 is characterized in that when a specific selection item is selected based on the position, movement, or shape of the moving object, the guide control unit (20) changes the guide corresponding to the selection item.
This allows the user to confirm completion of the setting change, thereby improving usability.
[Item 10]
A control program for a sensing switch (1) having a detection sensor unit (15) that transmits radio waves, receives reflected waves, and outputs detection data,
A process of identifying a position, movement, or shape of a moving object present within a detection range based on the detection data;
adjusting the settings of the sensing switch (1) or the load (2) based on the identified position, movement, or shape of the moving object;
A control program for causing a computer to execute the above.
According to this, even if the physical switch is eliminated, it is possible to realize a sensing switch (1) that allows the settings of the sensing switch (1) or the load (2) to be adjusted.

1 Sensor switch, 1a Body, 2 Lighting device, 15 Detection sensor unit, 20 Control unit, 21 Moving object detection unit, 22 Setting adjustment unit, 23 Signal transmission unit, 24 Guide control unit, 30 Memory unit, 40 Presentation unit, 40 1st LED to 8th LED.

Claims (10)

a detection sensor unit that transmits radio waves, receives reflected waves, and outputs detection data;
A control unit that outputs a signal to a load based on the detection data input from the detection sensor unit,
The control unit is
A moving object detection unit that identifies a position, a movement, or a shape of a moving object present within a detection range based on the detection data;
a setting adjustment unit that adjusts a setting of the sensing switch or the load based on the position, movement, or shape of the moving object identified by the moving object detection unit;
A sensing switch comprising: The sensing switch according to claim 1, further comprising a signal transmission unit that transmits a control signal including the setting information determined by the setting adjustment unit to a device linked to the sensing switch. Further comprising a table linking a plurality of selection items with a plurality of positions;
The sensor switch described in claim 1, characterized in that the setting adjustment unit recognizes that an operation has been performed to select a selection item linked to the position of the moving object when the position of the moving object identified by the moving object detection unit corresponds to any of the multiple positions defined in the table. Further comprising a table linking a plurality of selection items with a plurality of movements of the moving object,
The sensor switch described in claim 1, characterized in that the setting adjustment unit recognizes that an operation has been performed to select a selection item linked to the movement of the moving object when the movement of the moving object identified by the moving object detection unit corresponds to any of a plurality of movements of the moving object defined in the table. Further comprising a table linking a plurality of selection items with the shapes of the moving objects,
The sensor switch according to claim 1, characterized in that the setting adjustment unit recognizes that an operation has been performed to select an option corresponding to the shape of the moving object when the shape of the moving object identified by the moving object detection unit corresponds to any of a plurality of shapes of the moving object defined in the table. The sensing switch according to any one of claims 1 to 4, characterized in that the setting adjustment unit transitions to a construction mode when the moving object detection unit detects the approach of the moving object to a specific position, a specific movement of the moving object, or a specific shape of the moving object. The sensing switch according to any one of claims 1 to 4, characterized in that the detection sensor unit generates three-dimensional point cloud data based on the received reflected waves and outputs the generated three-dimensional point cloud data to the control unit. The sensing switch is
The display device further includes a display body that is fixed in a mounting hole provided on a construction surface with a part of the display body embedded therein and has a display surface exposed through the mounting hole.
The control unit is
The sensing switch according to claim 6 , further comprising a guide control unit that generates a guide corresponding to at least one selection item on the display surface when the operation mode is changed to the construction mode. The sensor switch according to claim 8, characterized in that when a particular selection item is selected based on the position, movement, or shape of the moving object, the guide control unit changes the guide corresponding to the selection item. A control program for a sensing switch having a sensing sensor unit that transmits radio waves, receives reflected waves, and outputs sensing data,
A process of identifying a position, movement, or shape of a moving object present within a detection range based on the detection data;
adjusting a setting of the sensing switch or load based on the identified position, movement, or shape of the moving object;
A control program for causing a computer to execute the above.

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