Detection system

Abstract

The present disclosure provides a detection system in which it is possible to easily install, in an indoor space, a sensor for obtaining information relating to a detection target in the indoor space.　In the detection system: a plurality of electric materials with built-in sensors are arranged in an indoor space; the sensors each receive power supplied from a commercial power supply to which the electric materials are connected, each detect a detection target in the indoor space, and each transmit a detection result; and at least one of the plurality of electric materials is installed at a higher position than all the other electric materials.

Description

Detection System

[0001] The present disclosure relates to detection systems.

[0002] Japanese Patent Application Laid-Open No. 2006-124493 discloses a device that estimates the comfort of a space using an environmental sensor that acquires environmental information about the environment, such as the temperature and humidity of the space, and a photographing device.

[0003] JP 2022-81282 A

[0004] The present disclosure provides a detection system that can easily realize sensing of an indoor space.

[0005] The detection system of the present disclosure includes a plurality of electrical equipment pieces each having a built-in sensor, each of which receives power from a commercial power source connected to the electrical equipment piece, detects a detection target in the indoor space, and transmits the detection results, and at least one of the plurality of electrical equipment pieces is installed at a higher position than the other electrical equipment pieces. This specification includes the entire contents of Japanese Patent Application No. 2024-055736, filed on March 29, 2024.

[0006] The detection system of the present disclosure includes multiple sensors, can be easily installed in an indoor space, and can obtain a lot of information about the detection target in the indoor space.

[0007] FIG. 1 is a diagram showing a schematic configuration of a detection system according to a first embodiment. FIG. 2 is a block diagram showing an example configuration of each device in the detection system according to the first embodiment. FIG. 3 is a front view showing an example configuration of a switch. FIG. 4 is a front view showing an example configuration of an outlet. FIG. 5 is a diagram showing a schematic configuration of a detection system according to a second embodiment. FIG. 6 is a block diagram showing an example configuration of each device in the detection system according to the second embodiment.

[0008] (Knowledge, etc., that Forms the Basis of the Present Disclosure) At the time the inventors conceived the present disclosure, there was a technology that used a camera and a sensor that detects the temperature and humidity of a space to sense people and other objects present in the space. However, when the space in which sensors are to be installed is a living or residential space, it may be difficult to secure space for multiple sensors. Furthermore, the conspicuous presence of sensors installed in an indoor space may have a psychological impact on people in the space. In particular, installing a camera in a living or residential space is undesirable from the perspective of privacy. The inventors discovered these issues and, in order to solve them, have come to constitute the subject matter of the present disclosure. Therefore, the present disclosure provides a detection system that allows sensors to be easily installed in an indoor space to obtain information about a detection target in the indoor space.

[0009] Hereinafter, embodiments will be described in detail with reference to the drawings. However, unnecessary detailed description may be omitted. For example, detailed description of already well-known matters or redundant description of substantially the same configuration may be omitted. Note that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0010] (Embodiment 1) [1-1. Configuration of the Detection System] FIG. 1 is a diagram showing the configuration of a detection system 1. The detection system 1 uses multiple sensors installed in a space to detect the position, size, shape, posture, state, etc. of a detection target present in the space. The space to which detection by the detection system 1 is applied may be a closed space surrounded by walls and a ceiling, or may be an open space. There are no limitations on the use of the space to which detection by the detection system 1 is applied. For example, the detection system 1 may be a residential space, a living space, a business space such as an office, a corridor, or a public space.

[0011] The first embodiment is an example in which the detection system 1 performs detection in an indoor space 9. The indoor space 9 is a space surrounded by a floor 91, a ceiling 92, and four walls 93, 94, 95, and 96. A door is provided in the indoor space 9, and when the door is closed, the indoor space 9 becomes a closed space.

[0012] The detection system 1 can detect living and non-living moving objects. Specifically, the detection objects include people, animals, autonomously moving robots, and other moving objects. The detection system 1 detects a person P present in an indoor space 9. The detection system 1 detects the position, size, shape, posture, and other conditions of the detection object in the indoor space 9.

[0013] A plurality of sensors constituting the detection system 1 are arranged in the indoor space 9. These sensors are incorporated into electrical equipment installed in the indoor space 9. The electrical equipment includes components, facilities, machines, and appliances that are connected to a commercial power source and fixedly installed in the indoor space 9. More specifically, the electrical equipment includes switches, outlets, and other power wiring components. The electrical equipment also includes ventilation fans, lighting fixtures, intercoms, and other devices that consume electricity. The electrical equipment also includes distribution boards, building energy management devices, and other power control devices.

[0014] The detection system 1 includes, as electrical equipment, a lighting device 10, a switch 20, and outlets 30A and 30B. The detection system 1 also includes a distribution board 50 installed inside or outside the indoor space 9. Power lines 5A, 5B, and 5C are drawn into the indoor space 9 from the distribution board 50. The power lines 5A, 5B, and 5C are, for example, electric wires laid concealed within the walls of the indoor space 9, and are, for example, power cables such as VVF cables and CV cables. Hereinafter, when there is no need to distinguish between the power lines 5A, 5B, and 5C, they will be referred to as power lines 5. The power lines 5 are connected to an incoming line 58 from a commercial power source via the distribution board 50.

[0015] The lighting device 10 is attached to a ceiling 92. A ceiling socket 112 is fixed to the ceiling 92, and the lighting device 10 is attached to the ceiling socket 112. The ceiling socket 112 is connected to a power line 5A, and the lighting device 10 is connected to the power line 5A by being attached to the ceiling socket 112. The ceiling socket 112 may be in a form called a lighting rosette. The ceiling socket 112 corresponds to an example of a fixing member.

[0016] The lighting device 10 includes a light source 11 (FIG. 2) described below and a cover 110 that diffuses light emitted from the light source 11. The light source 11 is provided in a circuit body 111 together with a driver 12 (FIG. 2) described below and the like, and is covered by the cover 110.

[0017] The lighting device 10 may be fixed directly to the ceiling 92, or may be attached to a lighting duct rail or the like that is fixed to the ceiling 92. The lighting device 10 may also be installed by being suspended from the ceiling 92.

[0018] The switch 20 has a switch body 21 connected to the power line 5A. The switch 20 connects and disconnects the power line 5A between the lighting device 10 and the distribution board 50, and when the switch 20 is on, power is supplied to the lighting device 10. When the switch 20 is off, the power supply to the lighting device 10 is cut off, and the lighting device 10 is turned off.

[0019] Outlets 30A and 30B are receptacles (also referred to as outlets) to which load devices that operate on commercial power can be connected. In the first embodiment, as an example, a configuration is shown in which a single-phase 100 V load can be connected. Outlet 30A is connected to distribution board 50 by power line 5B, and outlet 30B is connected to distribution board 50 by power line 5C.

[0020] The distribution board 50 branches off a service line 58 connected to a commercial power source and connects it to the power line 5. The distribution board 50 is fixed to a wall surface in the indoor space 9 or in a space different from the indoor space 9.

[0021] A sensor is provided in each electrical equipment installed in the indoor space 9. The lighting device 10 includes a sensor 14. The sensor 14 is arranged so as to be exposed to the indoor space 9 from the cover 110. The sensor 14 is provided on the lighting device 10 facing downward so that the detection range is below the lighting device 10.

[0022] The sensor 14 is attached to the circuit body 111. When the lighting device 10 is attached to the ceiling socket 112, the circuit body 111 is connected to the power line 5A. Therefore, when the lighting device 10 is attached to the ceiling 92, the light source 11 and the sensor 14, which will be described later, are connected to the power line 5A.

[0023] The switch 20 includes a sensor 24. The sensor 24 is disposed on the switch 20 so as to face the interior space 9 from the wall 94.

[0024] Outlet 30A is equipped with sensor 34A, and outlet 30B is equipped with sensor 34B. Sensor 34A is arranged so as to face from wall 95 toward indoor space 9, and sensor 34B is arranged so as to face from wall 94 toward indoor space 9.

[0025] The sensors 14, 24, 34A, and 34B may be the same type of sensor or different types of sensors. The sensors 14, 24, 34A, and 34B are, for example, any of a position detection sensor, an image output sensor, and a status detection sensor. The position detection sensor outputs a detection result related to the position of the person P in the indoor space 9. Specifically, the position detection sensor is a PIR (Passive InfraRed) sensor, an ultrasonic ranging sensor, or a radar sensor. Since the sensors 14, 24, 34A, and 34B are fixed to the indoor space 9, if the sensors 14, 24, 34A, and 34B include a position detection sensor, information related to the position of the person P can be obtained based on the position of the position detection sensor and the detection result.

[0026] The image output sensor is a sensor that outputs an image as a detection result in the indoor space 9. The image output sensor performs, for example, two-dimensional or three-dimensional detection on the indoor space 9 and outputs an image as a detection result. Specifically, examples of the image output sensor include an infrared array sensor, an image sensor that captures images using light outside the visible range including infrared light, and a digital camera that captures images using visible light. The infrared array sensor has multiple infrared sensors arranged in a grid pattern, and outputs a thermal image of the detection range based on the detection values ​​of these multiple infrared sensors.

[0027] If cameras are used as the sensors 14, 24, 34A, and 34B, the person P in the indoor space 9 may be made aware of the cameras, which may cause psychological oppression. For this reason, if the indoor space 9 is a private space or if the comfort of the person P in the indoor space 9 is important, it is appropriate not to capture images using visible light or high-resolution images. For example, it is preferable to use an infrared array sensor as the sensor 14.

[0028] The state detection sensor is a sensor that detects the state of the indoor space 9. The state detection sensor outputs a detection value that detects the state in the indoor space 9. Examples of the state detection sensor include a microphone, a vibration sensor, a temperature sensor, a humidity sensor, a pressure sensor that detects air pressure, and a Doppler sensor.

[0029] The sensors 14, 24, 34A, and 34B are selected from the sensors described above. The types of the sensors 14, 24, 34A, and 34B are selected depending on the locations in the indoor space 9 where the sensors 14, 24, 34A, and 34B are installed.

[0030] In the indoor space 9, height H1 at which sensor 14 is installed is the highest point in the indoor space 9. Height H2 at which sensor 24 is installed is lower than height H1. Height H3 at which sensor 34A is installed and height H4 at which sensor 34B is installed may be the same height or different heights. Heights H3 and H4 are close to the bottom of the indoor space 9 and lower than heights H1 and H2.

[0031] The sensor 14 is located at the highest position and detects from the ceiling 92 downward, so it can detect a wide range and detection is rarely obstructed by furniture or fixtures installed in the indoor space 9. For this reason, if an image output sensor or a position detection sensor is used as the sensor 14, a lot of information can be obtained about a wide range of the indoor space 9.

[0032] When an image output sensor or a position detection sensor is used as the sensor 14, it is preferable to use an image output sensor or a position detection sensor for at least one of the sensors 24, 34A, 34B. The sensors 24, 34A, 34B can detect the indoor space 9 from the walls 94, 95. Therefore, for example, if at least one of the sensors 24, 34A, 34B and the sensor 14 are configured as the same type of sensor and are an image output sensor, a three-dimensional detection result of the indoor space 9 can be obtained.

[0033] [1-2. Configuration of Each Device] Fig. 2 is a block diagram showing an example configuration of each device in the detection system 1, and shows the configuration of the lighting device 10, the switch 20, the outlets 30A and 30B, and the distribution board 50. Fig. 2 is a diagram that schematically shows the configuration of each device and does not limit the detailed circuit configuration. For example, each device in Fig. 2 may include a circuit that is not shown in Fig. 2.

[0034] The lighting device 10 includes a light source 11 and a driver 12 that turns on the light source 11. The light emitted by the light source 11 is diffused by a cover 110 (FIG. 1) to illuminate the interior space 9. The light source 11 is a solid-state light source such as an LED (Light Emitting Diode), or a lamp such as an incandescent lamp or a fluorescent lamp. The driver 12 is connected to the light source 11, and power is supplied from the driver 12 to the light source 11.

[0035] The driver 12 is connected to the power line 5A and receives commercial AC power via the power line 5A. The driver 12 includes a circuit that supplies the power required for the light source 11 to light up. For example, if the light source 11 is an LED, the driver 12 includes an inverter circuit that converts the commercial AC power to output a DC current of a predetermined voltage to the light source 11. The driver 12 may also have a function of adjusting the amount of light emitted by the light source 11. For example, the driver 12 may adjust the amount of light emitted by the LED that constitutes the light source 11 by PWM (Pulse Wave Modulation) control.

[0036] The sensor 14 is incorporated into the circuit body 111 ( FIG. 1 ) of the lighting device 10 as the sensor unit 13 together with the control unit 15, the communication unit 16, and the power supply unit 17. The power supply unit 17 is connected to the power line 5A via a ceiling socket 112, converts the AC current supplied from the power line 5A into DC current of a predetermined voltage, and outputs the DC current to the sensor 14, the control unit 15, and the communication unit 16.

[0037] The control unit 15 includes a processor that processes data by executing a program. The processor is configured as an integrated circuit such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The control unit 15 may also include a storage device that stores programs and data in a nonvolatile manner using a flash memory, a magnetic recording medium, an optical recording medium, or the like. The control unit 15 may also be configured as an integrated circuit that integrates a processor and a storage device, or may also be configured as a SoC (System on a Chip) that further integrates the sensor 14.

[0038] The control unit 15 operates the sensor 14 to perform detection for the indoor space 9. The control unit 15 acquires the detection result of the sensor 14 and generates detection data. The control unit 15 causes the communication unit 16 to transmit the detection data to the processing device 60.

[0039] The communication unit 16 communicates with the processing device 60 included in the distribution board 50 under the control of the control unit 15. For example, the communication unit 16 transmits detection data generated by the control unit 15 to the processing device 60. The communication between the communication unit 16 and the processing device 60 may be performed using a wired communication method via a power line 5A or other cable, or using Wi-Fi (registered trademark), Bluetooth (registered trademark), or other wireless communication methods. In the first embodiment, an example is described in which power line communication (PLC) is performed between the communication unit 16 and the processing device 60 via the power line 5A. Similarly, communication between each of the communication units 26, 36A, and 36B described below and the processing device 60 may be performed using a wired communication method or a wireless communication method. The following describes a case in which power line communication via the power line 5 is used.

[0040] The communication unit 16 is a communication modem that is connected to the two cables that make up the power line 5A and that performs power line communication via the power line 5A. The communication unit 16 includes, for example, a coding circuit that codes data, a transmission circuit that superimposes the coded signal on a carrier wave, a receiving circuit that has a filter that extracts the signal superimposed on the carrier wave, and a decoding circuit that decodes the extracted signal to generate received data and outputs the received data to the control unit 15.

[0041] The switch 20 includes a switch body 21 and a sensor unit 23. Although Fig. 2 shows the switch body 21 as a single-pole switch that disconnects only one of a pair of cables that make up the power line 5A, the switch body 21 may also be a double-pole switch.

[0042] The sensor unit 23 includes a sensor 24, a control unit 25, a communication unit 26, and a power supply unit 27. The power supply unit 27 is connected to the power line 5A at a position closer to the processing device 60 than the switch main body 21. The power supply unit 27 converts the AC current supplied from the power line 5A into DC current of a predetermined voltage and outputs it to the sensor 24, the control unit 25, and the communication unit 26.

[0043] The control unit 25 includes a processor that processes data by executing a program. The processor is configured as an integrated circuit such as a CPU or MPU. The control unit 25 may also include a storage device that stores programs and data in a nonvolatile manner using a flash memory, a magnetic recording medium, an optical recording medium, or the like. The control unit 25 may be configured as an integrated circuit that integrates a processor and a storage device, or may be configured as an SoC that further integrates the sensor 24.

[0044] The control unit 25 operates the sensor 24 to perform detection for the indoor space 9. The control unit 25 acquires the detection result of the sensor 24 and generates detection data. The control unit 25 causes the communication unit 26 to transmit the detection data to the processing device 60.

[0045] The communication unit 26 communicates with the processing device 60 under the control of the control unit 25. For example, the communication unit 26 transmits detection data generated by the control unit 25 to the processing device 60. The communication unit 26 is a communication modem that is connected to two cables that make up the power line 5A and performs power line communication via the power line 5A. The communication unit 26 includes, for example, a coding circuit that encodes data, a transmission circuit that superimposes the coded signal on a carrier wave, a receiving circuit that has a filter that extracts the signal superimposed on the carrier wave, and a decoding circuit that decodes the extracted signal to generate received data and outputs the received data to the control unit 25.

[0046] The outlet 30A includes an outlet body 31A and a sensor unit 33A. The outlet body 31A has a pair of terminals 32A that are connected to the power line 5B. A load device is connected to the terminals 32A. The terminals 32A correspond to an example of a power supply terminal. The load device is, for example, an electrical appliance used in the indoor space 9.

[0047] The sensor unit 33A includes a sensor 34A, a control unit 35A, a communication unit 36A, and a power supply unit 37A. The power supply unit 37A is connected to the power line 5B, converts AC current supplied from the power line 5B into DC current of a predetermined voltage, and outputs the DC current to the sensor 34A, the control unit 35A, and the communication unit 36A.

[0048] The control unit 35A includes a processor that processes data by executing a program. The processor is configured as an integrated circuit such as a CPU or MPU. The control unit 35A may also include a storage device that stores programs and data in a nonvolatile manner using a flash memory, a magnetic recording medium, an optical recording medium, or the like. The control unit 35A may also be configured as an integrated circuit that integrates a processor and a storage device, or may also be configured as an SoC that further integrates the sensor 34A.

[0049] The control unit 35A operates the sensor 34A to perform detection of the indoor space 9. The control unit 35A acquires the detection result of the sensor 34A and generates detection data. The control unit 35A causes the communication unit 36A to transmit the detection data to the processing device 60.

[0050] The communication unit 36A communicates with the processing device 60 under the control of the control unit 35A. For example, the communication unit 36A transmits detection data generated by the control unit 35A to the processing device 60. The communication unit 36A is a communication modem that is connected to two cables that make up the power line 5B and performs power line communication via the power line 5B. The communication unit 36A includes, for example, a coding circuit that encodes data, a transmission circuit that superimposes the coded signal on a carrier wave, a receiving circuit that has a filter that extracts the signal superimposed on the carrier wave, and a decoding circuit that decodes the extracted signal to generate received data and outputs the received data to the control unit 35A.

[0051] The outlet 30B can have the same configuration as the outlet 30A. That is, the outlet 30B includes an outlet body 31B and a sensor unit 33B, and the outlet body 31B has a pair of terminals 32B connected to the power line 5B. The terminals 32B correspond to an example of a power supply terminal. A load device is connected to the terminals 32B.

[0052] The sensor unit 33B includes a sensor 34B, a control unit 35B, a communication unit 36B, and a power supply unit 37B. The power supply unit 37B is connected to the power line 5C, converts AC current supplied from the power line 5C into DC current of a predetermined voltage, and outputs the DC current to the sensor 34B, the control unit 35B, and the communication unit 36B.

[0053] The control unit 35B includes a processor that processes data by executing a program. The processor is configured as an integrated circuit such as a CPU or MPU. The control unit 35B may also include a storage device that stores programs and data in a nonvolatile manner using a flash memory, a magnetic recording medium, an optical recording medium, or the like. The control unit 35B may also be configured as an integrated circuit that integrates a processor and a storage device, or may also be configured as an SoC that further integrates the sensor 34B.

[0054] The control unit 35B operates the sensor 34B to perform detection for the indoor space 9. The control unit 35B acquires the detection result of the sensor 34B and generates detection data. The control unit 35B causes the communication unit 36B to transmit the detection data to the processing device 60.

[0055] The communication unit 36B communicates with the processing device 60 under the control of the control unit 35B. For example, the communication unit 36B transmits detection data generated by the control unit 35B to the processing device 60. The communication unit 36B is a communication modem that is connected to the two cables that make up the power line 5B and performs power line communication via the power line 5B. The communication unit 36B includes, for example, a coding circuit that encodes data, a transmission circuit that superimposes the coded signal on a carrier wave, a receiving circuit that has a filter that extracts the signal superimposed on the carrier wave, and a decoding circuit that decodes the extracted signal to generate received data and outputs the received data to the control unit 35B.

[0056] A service line 58 is connected to the distribution board 50. The service line 58 is a power line drawn in from outside the building including the indoor space 9 or a main wiring of the building including the indoor space 9, and supplies commercial AC power to the distribution board 50.

[0057] The distribution board 50 includes a main breaker 51, branch wiring 52, and circuit breakers 53A, 53B, and 53C. The main breaker 51 is connected to a service line 58. The branch wiring 52 connects the main breaker 51 to each of the circuit breakers 53A, 53B, and 53C. In the first embodiment, a single-phase, three-wire, 200V AC power source is supplied to the distribution board 50. The branch wiring 52 includes branch wiring 52R, 52N, and 52T corresponding to the R phase, N phase, and T phase, respectively. The branch wiring 52R, 52N, and 52T are formed of metal members such as stranded wire, single-core wire, or bus bars. The distribution board 50 may also be provided with a ground terminal (not shown).

[0058] When the current flowing from the service line 58 to the branch wiring 52 exceeds a specified capacity, the main breaker 51 cuts off the service line 58 and the branch wiring 52. In addition to the main breaker 51, the distribution board 50 may also include a ground fault circuit interrupter and a neutral phase loss protection circuit (not shown).

[0059] Circuit breaker 53A is connected to branch wiring 52R and branch wiring 52N and supplies single-phase 100V AC current to power line 5A. Circuit breaker 53A disconnects power line 5A from branch wiring 52 when the current flowing through power line 5A exceeds a predetermined capacity. Circuit breaker 53B is connected to branch wiring 52N and branch wiring 52T and supplies single-phase 100V AC current to power line 5B. Circuit breaker 53C is connected to branch wiring 52N and branch wiring 52T and supplies single-phase 100V AC current to power line 5C. Circuit breaker 53B disconnects power line 5B from branch wiring 52 when the current flowing through power line 5B exceeds a predetermined capacity, and circuit breaker 53C disconnects power line 5C from branch wiring 52 when the current flowing through power line 5C exceeds a predetermined capacity.

[0060] The branch wiring 52 can be called secondary wiring relative to the main breaker 51. That is, the main breaker 51 functions as a circuit breaker that separates the commercial power supply from the secondary wiring. Also, the power line 5 can be called secondary wiring relative to the circuit breakers 53A, 53B, and 53C, and the circuit breakers 53A, 53B, and 53C function as circuit breakers that separate the commercial power supply from the secondary wiring.

[0061] The distribution board 50 is equipped with a processing device 60. The processing device 60 includes a processing unit 61, a memory unit 62, a communication unit 63, and a power supply unit 64. The power supply unit 64 is connected to the power line 5, and converts AC current supplied from the power line 5 into DC current of a predetermined voltage, and supplies the DC current to the processing unit 61, the memory unit 62, and the communication unit 63. The power line 5 to which the power supply unit 64 is connected may be any of the power lines 5A, 5B, and 5C. It is preferable that any of the circuit breakers 53A, 53B, and 53C is interposed between the power supply unit 64 and the branch wiring 52. The processing device 60 corresponds to an example of an information processing device.

[0062] The processing unit 61 includes a processor that processes data by executing a program. The processor is configured as an integrated circuit such as a CPU or MPU. The processor may also be programmed hardware. The storage unit 62 includes a storage device that stores programs and data in a nonvolatile manner using a flash memory, a magnetic recording medium, an optical recording medium, or the like. The storage unit 62 may also be configured as an integrated circuit integrated with the processing unit 61.

[0063] The communication unit 63 communicates with each of the communication units 16, 26, 36A, and 36B under the control of the processing unit 61. The processing unit 61 acquires detection data including the detection results of the sensors 14, 24, 34A, and 34B by causing the communication unit 63 to execute communication. The processing unit 61 stores the acquired detection data in the storage unit 62, for example, in association with information indicating the date and time when the sensors 14, 24, 34A, and 34B performed detection. The processing unit 61 may also store the acquired detection data in the storage unit 62 in association with information identifying the sensor that performed the detection.

[0064] The processing unit 61 processes the detection data from the multiple sensors to generate new detection data regarding the person P in the indoor space 9 and stores the data in the memory unit 62.

[0065] For example, the processing unit 61 integrates detection data from multiple sensors installed on different surfaces surrounding the indoor space 9. Specifically, the processing unit 61 integrates the detection result of the sensor 14 installed on the ceiling 92 with the detection result of the sensor 24 and / or the sensor 34A installed on the wall 94. Furthermore, for example, the processing unit 61 integrates the detection result of the sensor 14 with the detection result of the sensor 34B. Furthermore, for example, the processing unit 61 integrates the detection result of the sensor 14 with the detection result of the sensor 24 and / or the sensor 34A and the detection result of the sensor 34B. Through these processes, the processing unit 61 can generate three-dimensional detection data of the person P based on two-dimensional detection results, and can obtain two-dimensional detection data and three-dimensional detection data based on one-dimensional detection results. Examples of one-dimensional detection results include detection results from an ultrasonic ranging sensor or a radar sensor. Examples of two-dimensional detection results include detection results from an image output sensor. As a typical example, when the sensors 14 and 24 are configured as infrared array sensors, the processing unit 61 can generate a three-dimensional heat distribution map by overlaying the thermal images detected by the sensors 14 and 24 .

[0066] The position of the person P in the indoor space 9 can be detected based on the thermal images output by the sensors 14, etc. Furthermore, the processing unit 61 can determine the state of the person P by integrating the detection results of multiple sensors. For example, the processing unit 61 can determine whether the person P is standing, sitting, or crouching by determining the posture of the person P. Furthermore, the processing unit 61 can determine the health state of the person P by calculating changes in the body temperature of the person P and the body temperature of each part of the person P.

[0067] As described above, in the indoor space 9, sensors are arranged on different surfaces that make up the indoor space 9. Therefore, the detection system 1 can perform detection using the sensors from different directions relative to the indoor space 9. Furthermore, since sensors are arranged on the ceiling 92 and the walls 94 and 95, detection can be performed from above and the sides of the indoor space 9. Furthermore, since sensors are arranged at different height positions on the same wall surface in the indoor space 9, detection can be performed from different heights.

[0068] The sensors of the detection system 1 are installed in the lighting device 10, switch 20, and outlets 30A and 30B that are installed to illuminate the indoor space 9 and use electrical appliances. Therefore, there is no need to install new components on the wall 94 or ceiling 92 to install the sensors, and the sensors can be easily installed. For example, the lighting device 10 and switch 20 are installed to illuminate the indoor space 9, and are essential equipment regardless of whether sensors are installed. The detection system 1 can be realized by installing sensors 14 and 24 using these pieces of equipment.

[0069] 3 is a front view showing an example of the configuration of the switch 20. The switch 20 includes a switch block 201. The switch block 201 is a box-shaped housing made of an insulating material, and houses the circuit of the switch main body 21 and the wiring connected to the switch main body 21. An operator 202 is disposed on the front side of the switch block 201 that is exposed to the indoor space 9. The operator 202 is attached to the switch block 201 so as to be able to perform a seesaw motion or a push motion, and the switch main body 21 is released in response to the operation of the operator 202.

[0070] The switch block 201 is fitted into the mounting frame 211. For example, the switch block 201 is fixed to the mounting frame 211 by engaging a protrusion on the mounting frame 211 with a groove (not shown) formed on the side of the switch block 201. The switch block 201 corresponds to an example of a circuit body, and the mounting frame 211 corresponds to an example of a fixing member.

[0071] A rectangular hole for installing the switch 20 is drilled in the wall 94. A support member 212 is placed through this hole on the back side of the wall 94. The mounting frame 211 is fixed to the wall 94 by being connected to the support member 212 with the plate material or plasterboard that constitutes the wall 94 sandwiched therebetween.

[0072] A sensor unit 23 is incorporated into the switch block 201. A sensor cover 203 is disposed on the surface of the switch block 201 that is exposed to the indoor space 9, and a sensor 24 is built in at a position overlapping the sensor cover 203.

[0073] The sensor cover 203 is a plate-like member that covers the surface of the sensor 24, and is made of a material that does not interfere with detection by the sensor 24. For example, if the sensor 24 is a sensor that detects infrared rays, the sensor cover 203 is made of a material that transmits infrared rays.

[0074] The switch block 201 has a wire connection portion 205 to which the power line 5A is connected. The wire connection portion 205 is a terminal into which a conductor of the power line 5A can be inserted, and the wire connection portion 205 is provided with two wire connection portions 205 corresponding to the two conductors that make up the power line 5A. A terminal of the switch main body 21 is connected to the wire connection portions 205, and the power line 5A is disconnected by the switch main body 21. The wire connection portions 205 are also connected to the communication portion 26 and power supply portion 27 of the sensor unit 23. In this way, the switch block 201 is configured so that the switch main body 21 and the sensor unit 23 are connected to the power line 5A by inserting the power line 5A into the wire connection portions 205.

[0075] The configuration in which the sensor 24 is provided in the switch block 201 is one example. For example, the sensor unit 23 may be configured as a separate body from the switch block 201, and wiring within the switch block 201 may be connected to the sensor unit 23. In this case, the sensor 24 may be located at a position away from the operator 202, and the sensor 24 and a sensor cover 203 that covers the sensor 24 may be provided at the position indicated by the symbol A in FIG. 3 .

[0076] [1-4. Configuration Example of Outlet] Figure 4 is a front view showing a configuration example of outlet 30A. Outlet 30A includes outlet block 301. Outlet block 301 is a box-shaped housing made of insulating material, and houses terminals 32A and wiring connected to terminals 32A. Cover 302 having a pair of openings is disposed on the front of outlet block 301. Terminals 32A are exposed at the back of the openings of cover 302, and power is supplied to the load device by inserting the plug of the load device into the openings of cover 302.

[0077] The outlet block 301 is fitted into the mounting frame 311. For example, the outlet block 301 is fixed to the mounting frame 311 by engaging a protrusion on the mounting frame 311 with a groove (not shown) formed on the side of the outlet block 301. The outlet block 301 corresponds to an example of a circuit body, and the mounting frame 311 corresponds to an example of a fixing member.

[0078] A rectangular hole for installing outlet 30A is drilled in wall 94. Support member 312 is placed through this hole on the back side of wall 94. Mounting frame 311 is fixed to wall 94 by being connected to support member 312 with the plate material or plasterboard that makes up wall 94 sandwiched between them.

[0079] A sensor unit 33A is incorporated into the outlet block 301. A sensor cover 303 is disposed on the surface of the outlet block 301 that is exposed to the indoor space 9, and a sensor 34A is built in at a position overlapping the sensor cover 303.

[0080] The sensor cover 303 is a plate-like member that covers the surface of the sensor 34A and is made of a material that does not interfere with detection by the sensor 34A. For example, if the sensor 34A is a sensor that detects infrared rays, the sensor cover 303 is made of a material that transmits infrared rays.

[0081] The outlet block 301 has wire connection portions 305 for connecting the power line 5B. The wire connection portions 305 are terminals into which the conductors of the power line 5B can be inserted, and the wire connection portions 305 are provided with two wire connection portions 305 corresponding to the two conductors that make up the power line 5B. Terminals 32A of the outlet body 31A are connected to the wire connection portions 305. The communication unit 36A and power supply unit 37A of the sensor unit 33A are also connected to the wire connection portions 305. In this way, the outlet block 301 is configured so that the outlet body 31A and the sensor unit 33A are connected to the power line 5B by inserting the power line 5B into the wire connection portions 305.

[0082] The configuration in which sensor 34A is provided in outlet block 301 is one example. For example, sensor unit 33A may be configured as a separate unit from outlet block 301, and wiring within outlet block 301 may be connected to sensor unit 33A. In this case, sensor 34A may be located at a position away from cover 302. For example, sensor 34A and a sensor cover 303 covering sensor 34A may be provided at the position indicated by symbol B in FIG. 4 .

[0083] Although not shown, the outlet 30B can be configured in the same manner as the outlet 30A.

[0084] (Embodiment 2) Fig. 5 is a diagram showing a schematic configuration of a detection system 1A according to embodiment 2. Fig. 6 is a block diagram showing an example configuration of each device in the detection system 1A according to embodiment 2. In the detection system 1A, components common to the detection system 1 described in embodiment 1 are denoted by the same reference numerals, and description thereof will be omitted.

[0085] The detection system 1A has an outlet 40 instead of the outlet 30B of the detection system 1. The outlet 40 is installed on a wall 95 in the same manner as the outlet 30B, and has an outlet body 31B and a sensor 34B. The height H4 at which the sensor 34B is installed is the same as that of the sensor 34B.

[0086] Furthermore, the detection system 1A includes a distribution board 50A instead of the distribution board 50 of the detection system 1. As shown in Fig. 2, the distribution board 50A differs from the distribution board 50 in that the distribution board 50A does not include the processing device 60.

[0087] The outlet 40 includes an outlet body 31B having a terminal 32B, and a sensor unit 41. The sensor unit 41 includes a processing unit 42, a communication unit 43, a storage unit 44, and a sensor 34B. The sensor unit 41 corresponds to an example of an information processing device.

[0088] Like the communication unit 36B, the communication unit 43 is connected to the power line 5C and performs power line communication via the power line 5C. The communication unit 43 includes, for example, a coding circuit that codes data, a transmission circuit that superimposes the coded signal on a carrier wave, a receiving circuit that has a filter that extracts the signal superimposed on the carrier wave, and a decoding circuit that decodes the extracted signal to generate received data and outputs the received data to the processing unit 42.

[0089] The processing unit 42 includes a processor that processes data by executing a program. The processor is configured as an integrated circuit such as a CPU or MPU. The processor may also be programmed hardware. The storage unit 44 includes a storage device that stores programs and data in a nonvolatile manner using a flash memory, a magnetic recording medium, an optical recording medium, or the like. The storage unit 44 may also be configured as an integrated circuit integrated with the processing unit 42.

[0090] The communication unit 43 communicates with each of the communication units 16, 26, and 36A under the control of the processing unit 42. The processing unit 42 causes the communication unit 43 to communicate, thereby acquiring detection data including the detection results of the sensors 14, 24, and 34A. The processing unit 42 also operates the sensor 34B to perform detection of the indoor space 9. The processing unit 42 acquires the detection results of the sensor 34B and generates detection data.

[0091] The processing unit 42 stores the detection data including the detection results of the sensors 14, 24, 34A and the detection data including the detection results of the sensor 34B in the storage unit 44 in association with, for example, information indicating the date and time when the sensors 14, 24, 34A, 34B performed the detection. The processing unit 42 may store the acquired detection data in the storage unit 44 in association with information identifying the sensor that performed the detection.

[0092] The processing unit 42 processes the detection data from the multiple sensors to generate new detection data regarding the person P in the indoor space 9, and stores the data in the storage unit 44. That is, the processing unit 42 has a function of performing processing similar to that of the processing unit 61, and determines the state of the person P in the indoor space 9.

[0093] In the second embodiment, an information processing device that processes the detection results of the multiple sensors included in the detection system 1 is incorporated into a single electrical installation item, the outlet 40. This allows the multiple electrical installation items installed in the indoor space 9 to be used to perform detection in the indoor space 9 and determination based on the detection results of the multiple sensors.

[0094] (Other Embodiments) As described above, the above-mentioned embodiments have been described as examples disclosed in the present application. However, the technology in the present disclosure is not limited to these, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. Furthermore, it is also possible to combine the components described in the above-mentioned embodiments to create new embodiments. Therefore, other embodiments will be described below as examples.

[0095] In the above-described embodiments, examples have been described in which the detection system 1, 1A is configured to include multiple sensors installed in one indoor space 9. The space that the detection system 1, 1A detects is not limited to one space. For example, the detection system 1, 1A may be configured such that multiple sensors are installed in multiple spaces separated by walls, and these multiple sensors are connected to the processing device 60 via power lines 5. The detection system 1 may also be configured such that multiple processing devices 60 communicate with each other. Similarly, the detection system 1A may be configured such that sensor units 41 are provided on multiple electrical installation materials.

[0096] The switch 20 and the outlets 30A, 30B, and 40 are examples of electrical equipment in which sensors can be installed. Examples of electrical equipment in which sensors constituting the detection systems 1 and 1A can be installed include an outlet with two or more sockets, an outlet with a ground terminal, a switch with a pilot lamp, a switch with a timer, a switch with lighting, a ventilation fan, etc. Of course, sensors can also be installed in other electrical equipment.

[0097] 2 are merely examples, and the specific implementation form is not particularly limited. In other words, it is not necessary to implement hardware corresponding to each unit individually. Of course, it is also possible, for example, to configure the units so that a single integrated circuit realizes the functions of each unit. Furthermore, in the above-described embodiment, the functions of the control units 15, 25, 35A, 35B and the processing units 42, 61 may be realized by software or hardware.

[0098] It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, etc. may be made within the scope of the claims or their equivalents.

[0099] (Additional Notes) The above description of the embodiments discloses the following techniques.

[0100] (Technology 1) A detection system includes a plurality of electrical equipment pieces each equipped with a built-in sensor, arranged in an indoor space. Each sensor receives power from a commercial power source connected to the electrical equipment piece, detects a target in the indoor space, and transmits the detection results. At least one of the plurality of electrical equipment pieces is installed at a higher position than the other pieces of electrical equipment. This allows for easy placement of multiple sensors in an indoor space for sensing and for obtaining a wealth of information about the target. By incorporating sensors into the electrical equipment pieces and powering the sensors from a commercial power source connected to the electrical equipment piece, the construction procedures for installing the sensors and connecting them to the power source can be simplified. Since the electrical equipment pieces are fixed in the indoor space, the sensor positions can be fixed. Furthermore, by fixing and installing sensors at different heights in the indoor space, three-dimensional sensing can be performed, making it easy to obtain a wealth of information about the position, shape, size, etc. of the target. Electrical equipment pieces are often exposed in indoor spaces and installed in locations that are easily accessible to people, which offers the advantage of allowing sensors to be placed in locations that are ideal for sensing. Furthermore, since the sensor can be installed inconspicuously, there is an advantage that the presence of the sensor does not adversely affect the comfort of the indoor space.

[0101] (Technology 2) The detection system according to Technology 1, further comprising a state determination unit that determines the state of the detection target in the indoor space based on the detection result transmitted by the sensor. This makes it possible to obtain information about the state of the sensing target by utilizing a large amount of information obtained using the sensor.

[0102] (Technology 3) The detection system according to Technology 1 further includes an information processing device, and the sensor transmits the detection results of the indoor space to the information processing device. The information processing device communicates with the sensor, receives the detection results from the sensor, and processes them. This allows the sensor to be powered by a power line connected to electrical equipment, and the sensor's detection results to be transmitted and received. This improves the ease of installation when installing the sensor in the indoor space.

[0103] (Technology 4) The detection system according to Technology 3, wherein the information processing device is installed in a distribution board that includes a circuit breaker that disconnects the commercial power supply from the secondary wiring and a connection terminal that connects the secondary wiring to a power line laid in the indoor space, and the information processing device communicates with the sensor through the power line and receives and processes the detection results from the sensor. This allows the detection results of multiple sensors to be acquired and processed by the information processing device installed in the distribution board where power lines are aggregated.

[0104] (Technology 5) The detection system according to Technology 3, wherein the electrical equipment is connected to the commercial power source via a power line laid in the indoor space, and includes a sensor unit including the sensor, a power supply unit connected to the power line, and a power line communication unit that transmits the detection results of the sensor by communication through the power line. This allows the power line connected to the electrical equipment to be used to secure power for the sensor and to transmit and receive the detection results of the sensor. This improves the ease of installation when installing the sensor in the indoor space.

[0105] (Technology 6) The detection system according to any one of Technology 1 to Technology 4, wherein the electrical equipment is a lighting device installed on a ceiling or wall of the indoor space. This allows a sensor to be installed at the installation position of the lighting device. Lighting devices are often installed at high positions in indoor spaces, and there are relatively few furniture or fixtures installed in the indoor space that block the light from the lighting device. Therefore, detection can be performed over a wide area in the indoor space, and a large amount of information can be obtained.

[0106] (Technology 7) The detection system according to Technology 5, wherein the sensor incorporated in the lighting device is an infrared sensor, and the infrared sensor is disposed so as to be exposed from a cover of a light source of the lighting device. This allows the sensor incorporated in the lighting device to perform detection using infrared rays, and can detect the position of a detection target over a wide range in an indoor space.

[0107] (Technology 8) The detection system according to Technology 3, wherein the electrical equipment comprises a fixing member fixed to a surface constituting the indoor space and a circuit body attached to the fixing member, and the sensor is incorporated into the circuit body. This allows the sensor to be installed in the indoor space by installing the electrical equipment on the walls or ceiling of the indoor space. Since there is no need to perform separate installation work for the sensor, workability can be improved.

[0108] (Technology 8) The detection system according to Technology 7, wherein the electrical equipment is either a switch that switches the power supply to equipment installed in the indoor space or a power outlet that has a power terminal exposed to the indoor space. This allows a sensor to be incorporated into the switch or the power outlet that is often installed in the indoor space.

[0109] As described above, the detection system according to the present disclosure can be used to detect targets such as people and animals in indoor spaces.

[0110] REFERENCE SIGNS LIST 1, 1A Detection system 5, 5A, 5B, 5C Power line (secondary wiring) 9 Indoor space 10 Lighting device 11 Light source 12 Driver 13 Sensor unit 14 Sensor 15 Control unit 16 Communication unit 17 Power supply unit 20 Switch 21 Switch body 23 Sensor unit 24 Sensor 25 Control unit 26 Communication unit 27 Power supply unit 30A, 30B, 40 Outlet 31A, 31B Outlet body 32A, 32B Terminal (power terminal) 33A, 33B Sensor unit 34A, 34B Sensor 35A, 35B Control unit 36A, 36B Communication unit 37A, 37B Power supply unit 41 Processing device (information processing device) 42 Processing unit 43 Communication unit 50 Distribution board 51 Main breaker (circuit breaker) 52, 52R, 52N, 52T Branch wiring (secondary side wiring) 53A, 53B, 53C Circuit breaker 58 Lead-in wire 60 Processing device (information processing device) 61 Processing unit 62 Memory unit 63 Communication unit 64 Power supply unit 110 Cover 201 Switch block (circuit main body) 202 Operator 203, 303 Sensor cover 205, 305 Electric wire connection unit 211, 311 Mounting frame (fixing member) 212, 312 Support member 301 Outlet block (circuit main body) 302 Cover P Person (detection target)

Claims

1. A detection system in which a plurality of electrical equipment pieces each having a built-in sensor are placed in an indoor space, each of the sensors receives power from a commercial power source connected to the electrical equipment piece, detects an object to be detected in the indoor space, and transmits the detection results, and at least one of the plurality of electrical equipment pieces is installed at a higher position than the other electrical equipment pieces.

2. The detection system according to claim 1, further comprising a state determination unit that determines the state of the detection target in the indoor space based on the detection results transmitted by the sensor.

3. The detection system according to claim 1, further comprising an information processing device, wherein the sensor transmits the detection results of the indoor space to the information processing device, and the information processing device communicates with the sensor, receives the detection results from the sensor, and processes them.

4. The detection system according to claim 3, wherein the information processing device is installed in a distribution board that has a circuit breaker that disconnects the commercial power source from the secondary wiring, and a connection terminal that connects the secondary wiring to a power line laid in the indoor space.

5. The detection system described in claim 3, wherein the electrical equipment is connected to the commercial power source via a power line laid in the indoor space, and is provided with a sensor unit including the sensor, a power supply unit connected to the power line, and a power line communication unit that transmits the detection results of the sensor to the information processing device by communication through the power line.

6. The detection system according to claim 1, wherein the electrical equipment is a lighting device installed on a ceiling or wall of the indoor space.

7. The detection system according to claim 6, wherein the sensor incorporated in the lighting device is an infrared sensor, and the infrared sensor is positioned so as to be exposed from a cover of a light source of the lighting device.

8. A detection system as described in any one of claims 1 to 7, wherein the electrical equipment comprises a fixing member fixed to a surface constituting the indoor space and a circuit body attached to the fixing member, and the sensor is incorporated into the circuit body.

9. The detection system of claim 8, wherein the electrical equipment is either a switch for switching the power supply to equipment installed in the indoor space, or a power outlet having a power terminal exposed to the indoor space.

Images