JP2014135155A - Power supply tap, apparatus recognition method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply tap capable of recognizing an electric apparatus connected with each outlet appropriately without causing up-sizing or cost increase, and to provide an apparatus recognition method and program.SOLUTION: A tap 600 includes outlets 601a-601c, a measurement section 611 for measuring power supply amount to an electric apparatus of each outlet 601a-601c, a tag reader 604 for reading the specific information of the electric apparatus from the wireless tag of a plug, a detection section 612 for detecting connection or disconnection of the plug based on the change of power supply amount with time in the outlets 601a-601c, and a recognition section 613 for recognizing an electric apparatus corresponding to a connected or disconnected plug, based on the difference of specific information read before the detection time of connection or disconnection of the plug, and specific information read after the detection time.

Description

  The present invention relates to a power feeding tap, a device recognition method, and a program.

  In recent years, the need to know the breakdown of power consumption in homes and offices has increased due to the growing awareness of power saving. In order to meet such needs, power supply taps (called intelligent taps) that have a function of measuring the amount of power supplied to an electrical device connected to an outlet and transmitting it to an external device have been developed. The power supply tap is provided with an ammeter for each outlet, and the amount of power supplied to the electrical device can be individually measured for each outlet based on the measured value of the ammeter. Therefore, if it is known which electrical device is connected to each outlet of the power feeding tap, it is possible to know which electrical device consumes how much power, that is, a breakdown of power consumption.

  However, manually checking which electrical device is connected to each outlet of the power feeding tap is a very complicated task. Moreover, the operation | work which updates information whenever an electric equipment is replaced is also complicated. Especially in offices, there are more power supply taps and electrical devices than in homes, so the work is very cumbersome, and the operation of many people working in the office can be monitored to replace electrical devices. It is extremely difficult to update information each time it is done.

  In view of such circumstances, a technique for automatically recognizing an electrical device connected to each outlet of a power feeding tap has been proposed. For example, a wireless tag is attached to a plug of an electric device, a tag reader is provided on the power supply tap, and the tag reader reads the information of the wireless tag at the timing when the plug of the electric device is inserted into the outlet of the power supply tap, thereby connecting to the outlet. A technique for recognizing a connected electric device is known (see, for example, Patent Document 1 and Patent Document 2).

  However, in the conventional method, in order to uniquely recognize the electrical equipment connected to each outlet of the power supply tap, it is necessary to provide a tag reader for each outlet, which causes an increase in the size and cost of the power supply tap. There is.

  The present invention has been made in view of the above, and a power feeding tap, a device recognition method, and a program capable of appropriately recognizing an electrical device connected to each outlet without incurring an increase in size or cost. The main purpose is to provide

  In order to solve the above-described problems and achieve the object, the power supply tap according to the present invention includes a plurality of outlets that supply power to the electric devices via plugs of the electric devices, and the electric devices for each of the plurality of outlets. A measurement unit that measures the amount of power supplied to the reader, a reading unit that reads the unique information of the electrical device from the plug, and a detection unit that detects insertion / removal of the plug with respect to the outlet based on a temporal change in the power supply amount, Based on the difference between the unique information read before the detection time when the insertion / removal of the plug is detected and the unique information read after the detection time, the electrical corresponding to the plug inserted / removed A recognition unit for recognizing the device.

  In addition, the device recognition method according to the present invention includes a plurality of outlets that supply power to the electric device via a plug of the electric device, a measuring unit that measures the amount of power supplied to the electric device for each of the plurality of outlets, A device recognition method that is executed in a power supply tap including a reading unit that reads unique information of the electric device from a plug, and detects insertion / removal of the plug with respect to the outlet based on a temporal change in the power supply amount. Corresponding to the plug inserted and removed based on the difference between the step and the unique information read before the detection time when the insertion / removal of the plug is detected and the unique information read after the detection time Recognizing the electric device.

  Further, the program according to the present invention includes a plurality of outlets that supply power to the electric device via a plug of the electric device, a measuring unit that measures the amount of power supplied to the electric device for each of the plurality of outlets, and the plug. A function of detecting insertion / removal of the plug with respect to the outlet based on a change over time of the power supply amount, and insertion / removal of the plug are detected on a power supply tap provided with a reading unit that reads unique information of the electrical device. A function of recognizing the electrical device corresponding to the inserted / removed plug based on a difference between the unique information read before the detected time and the unique information read after the detected time. make it happen.

  According to the present invention, there is an effect that it is possible to appropriately recognize an electric device connected to each outlet without causing an increase in size and cost of a power feeding tap.

FIG. 1 is a network configuration diagram of the device control system of the embodiment. FIG. 2 is a diagram in which a smartphone and a sensor are mounted and defined. FIG. 3 is a diagram illustrating an example in which an information device capable of detecting human movement is mounted separately from a smartphone. FIG. 4 is a diagram illustrating a direction detected by each sensor. FIG. 5 is a diagram illustrating an example of an installation state of the monitoring camera. FIG. 6 is a diagram illustrating an example of an installation state of LED lighting devices, taps, and air conditioners. FIG. 7 is a block diagram illustrating a functional configuration of the positioning server device. FIG. 8 is a diagram illustrating waveforms of acceleration components in the vertical direction when the sitting operation and the standing operation are performed. FIG. 9 is a diagram illustrating a waveform of the angular velocity component in the horizontal direction when the squatting operation and the standing operation are performed, respectively. FIG. 10 is a diagram illustrating a waveform of the angular velocity component in the vertical direction when the operation of changing the direction in a stationary state is performed. FIG. 11 is a diagram illustrating a waveform of the angular velocity component in the horizontal direction of the head when the eye is removed from the display in the seated state. FIG. 12 is a diagram illustrating a waveform of the horizontal angular velocity component of the head when the line of sight is removed from the display in a sitting state. FIG. 13 is a block diagram illustrating a functional configuration of the control server device according to the embodiment. FIG. 14 is a flowchart illustrating a procedure of detection processing by the positioning server device according to the embodiment. FIG. 15 is a flowchart illustrating a procedure of device control processing according to the embodiment. FIG. 16 is a diagram illustrating a configuration example of a conventional tap illustrated as a comparative example. FIG. 17 is a diagram for explaining the problem of the tap of the comparative example. FIG. 18 is a diagram for explaining the problem of the tap of the comparative example. FIG. 19 is a diagram for explaining the problem of the tap of the comparative example. FIG. 20 is a diagram illustrating a configuration example of the tap according to the present embodiment. FIG. 21 is a diagram for explaining the situation of the scene 1. FIG. 22 is a diagram illustrating a change over time in the amount of power supplied to the electrical device for each outlet. FIG. 23 is a diagram showing, in chronological order, the unique information of the electric device that is periodically read by the tag reader. FIG. 24 is a diagram for explaining the situation of the scene 2. FIG. 25 is a diagram illustrating a change over time in the amount of power supplied to the electrical device for each outlet. FIG. 26 is a diagram showing, in chronological order, the unique information of the electric device that is regularly read by the tag reader. FIG. 27 is a diagram for explaining the situation of the scene 3. FIG. 28 is a diagram illustrating a change over time in the amount of power supplied to the electrical device for each outlet. FIG. 29 is a diagram showing, in chronological order, the unique information of the electric device that the tag reader reads periodically. FIG. 30 is a diagram for explaining the situation of the scene 4. FIG. 31 is a diagram illustrating a change over time in the amount of power supplied to an electrical device for each outlet. FIG. 32 is a diagram showing, in chronological order, the unique information of the electric device that is regularly read by the tag reader. FIG. 33 is a flowchart illustrating a procedure of device identification processing according to the embodiment. FIG. 34 is an explanatory diagram illustrating a hardware configuration example of the positioning server device and the control server device according to the embodiment.

  Hereinafter, embodiments of a power feeding tap, a device recognition method, and a program according to the present invention will be described in detail with reference to the accompanying drawings.

  The power supply tap of the present embodiment includes a plurality of outlets, a measurement unit that measures the amount of power supplied to the electrical devices connected to each outlet, a reading unit that reads specific information of the electrical devices from a plug inserted into the outlet, Is provided. The reading unit reads specific information of the electric device periodically from the plug inserted into the outlet, for example, at predetermined intervals. In addition, the power supply tap of the present embodiment includes a detection unit that detects insertion / removal of the plug with respect to the outlet based on a temporal change in the amount of power supply measured by the measurement unit. Furthermore, the power supply tap of the present embodiment includes the unique information read by the reading unit before the detection time, which is the time when plug insertion / removal is detected, and the unique information read by the reading unit after the detection time. Based on the difference, a recognition unit for recognizing an electric device corresponding to the plug inserted and removed is provided.

  The measurement unit can measure the amount of power supplied to the electrical equipment connected to each outlet using, for example, a measurement value of an ammeter provided for each outlet. Moreover, as a reading part, the tag reader which reads the specific information of an electric equipment from the wireless tag attached to the plug of an electric equipment can be used, for example. A measurement part, a detection part, and a recognition part are realizable by the program run by CPU of the control part which controls a power feeding tap, for example. The above is merely an example of a specific method for realizing the power feeding tap of the present embodiment, and the present invention is not limited to the above example. For example, as the reading unit, a communication device that performs short-distance wireless communication with a plug of an electric device by means other than a tag reader, such as Bluetooth (registered trademark), may be used. In addition, at least one of the measurement unit, the detection unit, and the recognition unit can be realized by using dedicated hardware such as ASIC (Application Specific Integrated Circuit) or FPGA (Field-Programmable Gate Array).

  In the power feeding tap according to the present embodiment, the recognition unit recognizes the electric device corresponding to the inserted / removed plug as follows from the difference between the specific information read before and after the detection time. That is, when there is a difference between the unique information read by the reading unit immediately before the detection time and the unique information read by the reading unit immediately after the detection time, the recognition unit uses the unique information corresponding to the difference. The electric device shown is recognized as an electric device corresponding to the plug inserted and removed.

  In addition, when there is no difference between the unique information read immediately before the detection time and the specific information read immediately after the detection time, the recognition unit determines whether the power supply amount is increased or decreased at the detection time. Check. If the power supply amount increases at the detection time, the unique information newly read at the time closest to the detection time among the unique information newly read by the reading unit at a time before the detection time The electric device indicated by is recognized as an electric device corresponding to the plug inserted into the outlet. On the other hand, when the power supply amount decreases at the detection time, the unique information that is not read at the time closest to the detection time among the specific information that is not read by the reading unit at a time later than the detection time is indicated. It is recognized that the electrical device that corresponds to the plug that has been removed from the outlet.

  In the power supply tap of this embodiment, the detection unit detects which of the plurality of outlets has the plug inserted / removed based on a change in the amount of power supplied, and the plug inserted / removed by any one of the outlets is used. The recognition unit recognizes the corresponding electrical device. For this reason, it is not necessary to provide a reading unit such as a tag reader for each of a plurality of outlets. Therefore, according to the power feeding tap of the present embodiment, it is possible to appropriately recognize the electric device connected to the outlet without incurring an increase in size and cost of the device.

  Below, the example which implement | achieves the electric power feeding tap of this embodiment as a one part apparatus of the equipment control system which controls the electric power of the various equipment installed indoors according to the position of the person in the room of an office, etc. is demonstrated. . The applicable system is not limited to such a device control system.

  FIG. 1 is a network configuration diagram of the device control system of the present embodiment. As shown in FIG. 1, the device control system of the present embodiment includes a plurality of smartphones 300, a plurality of monitoring cameras 400 as imaging devices, a positioning server device 100, a control server device 200 as a control device, and a control. A plurality of LED (Light Emitting Diode) lighting devices 500, a plurality of taps 600, and a plurality of air conditioners 700 are provided as target devices.

  The plurality of smartphones 300, the plurality of monitoring cameras 400, and the positioning server device 100 are connected by a wireless communication network such as Wi-Fi (Wireless Fidelity), for example. Note that the wireless communication method is not limited to Wi-Fi. Moreover, the monitoring camera 400 and the positioning server apparatus 100 may be connected with a wire.

  The positioning server device 100 and the control server device 200 are connected to a network such as the Internet or a LAN (Local Area Network).

  In addition, the control server device 200, the plurality of LED lighting devices 500, the plurality of taps 600, and the plurality of air conditioners 700 are connected by a wireless communication network such as Wi-Fi, for example.

  The communication method between the control server device 200, the plurality of LED lighting devices 500, the plurality of taps 600, and the plurality of air conditioners 700 is not limited to Wi-Fi, and other wireless communication methods are used. In addition, a wired communication system such as an Ethernet (registered trademark) cable or PLC (Power Line Communications) may be used.

  The smartphone 300 is an information device that is carried by a human and detects human movement. FIG. 2 is a diagram illustrating a wearing state of the smartphone 300. In addition to being held by a human hand or the like, the smartphone 300 may be worn on the human waist as shown in FIG.

  Returning to FIG. 1, each of the smartphones 300 is equipped with an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor, and transmits detection data from each sensor to the positioning server device 100 at regular intervals such as 1 second. Yes. Here, the detection data of the acceleration sensor is an acceleration vector. The detection data of the angular velocity sensor is an angular velocity vector. The detection data of the geomagnetic sensor is a magnetic orientation vector.

  In the present embodiment, the smartphone 300 is used as an information device that detects a human motion. However, if the information device includes an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor, the smartphone 300 can be used. It is not limited to mobile terminals.

  In addition, the smartphone 300 includes information devices that detect human movements such as an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor, and the information devices that detect human movements may be mounted separately from the smartphone 300. Good.

  For example, FIG. 3 is a diagram illustrating an example in which an information device capable of detecting human movement is mounted separately from the smartphone 300. As illustrated in FIG. 3, separately from the smartphone 300, a small headset type sensor group 301 including an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor can be attached to the head. In this case, the detection data detected by the sensor group 301 can be transmitted directly to the positioning server device 100 via the smartphone 300 in addition to being directly transmitted to the positioning server device 100 by the sensor group 301. As described above, by attaching the sensor group 301 to the human head separately from each sensor of the smartphone 300, various posture detections can be performed.

  FIG. 4 is a diagram illustrating a direction detected by each sensor. FIG. 4A shows directions detected by the acceleration sensor and the geomagnetic sensor. As shown in FIG. 4A, the acceleration sensor and the geomagnetic sensor can detect the traveling direction, the vertical direction, the horizontal direction acceleration component, and the geomagnetic direction component, respectively. FIG. 4B shows an angular velocity vector A detected by the angular velocity sensor. Here, the arrow B indicates the positive direction of the angular velocity. In the present embodiment, the projection of the angular velocity vector A onto the traveling direction, the vertical direction, and the horizontal direction shown in FIG. 4A is considered, and the angular velocity component in the traveling direction, the angular velocity component in the vertical direction, and the angular velocity component in the horizontal direction, respectively. That's it.

  Returning to FIG. 1, the monitoring camera 400 images a room that is a control target area, and is installed near the upper part of the room, for example. FIG. 5 is a diagram illustrating an example of an installation state of the monitoring camera 400. In the example of FIG. 5, the surveillance cameras 400 are installed at two locations near the door in the room, but the present invention is not limited to this. The monitoring camera 400 images a room that is a target area and transmits the captured image (captured video) to the positioning server device 100.

  Returning to FIG. 1, in the present embodiment, the illumination system, the tap system, and the air conditioning system are targeted for power control. A plurality of LED lighting devices 500 are used as an illumination system, a plurality of power supply taps (hereinafter referred to as taps) 600 as a tap system, and a plurality of air conditioners 700 as an air conditioning system.

  The plurality of LED lighting devices 500, the plurality of taps 600, and the plurality of air conditioners 700 are installed in a room that is a control target area. FIG. 6 is a diagram illustrating an example of an installation state of the LED lighting device 500, the tap 600, and the air conditioner 700.

  As shown in FIG. 6, one group is formed by six desks in the room, and three groups are provided. One LED lighting device 500 and one tap 600 are provided for each desk. On the other hand, one air conditioner 700 is provided between two groups. In addition, arrangement | positioning of such LED lighting apparatus 500, the tap 600, and the air conditioner 700 is an example, and is not limited to the example shown in FIG.

  Although not shown in FIG. 6, the sum total information of the total power in the room according to the present embodiment can be grasped by the grid power measuring device installed outside the room.

  Inside the room, 18 people are carrying out specific business activities, and the entrance to and exit from the room is done with two doors. In the present embodiment, the layout, devices, number of people, and the like are limited, but the present invention can be applied to a wider variety of layouts and devices. Furthermore, the present invention can be widely expanded and applied to the arbitraryness in the scalability of the space scale and the number of people and the arbitraryness in the user attribute and the type of work involved when viewed in individual units or group units. Moreover, this embodiment may be applied not only to indoor spaces as shown in FIGS.

  Note that the positioning server device 100 and the control server device 200 of this embodiment are installed outside the room shown in FIGS. In the present embodiment, the positioning server device 100 and the control server device 200 are not subject to power control, but these may be subject to power control.

  In this embodiment, network devices such as Wi-Fi access points, switching hubs, and routers constituting the communication network system are excluded from power control. However, these devices may be subject to power control. Is possible.

  The amount of power consumed by these network devices can be calculated as the amount of power obtained by dividing the total power in the LED lighting device 500, the air conditioner 700, and the tap 600 from the total system power.

  Each of the plurality of LED lighting devices 500, the plurality of taps 600, and the plurality of air conditioners 700 is remotely controlled by the control server device 200 via a network.

  That is, the LED lighting device 500 is remotely controlled by the control server device 200 with respect to the illumination range and illuminance. Specifically, the LED lighting device 500 is provided with an on / off switch that can be individually controlled remotely, and the on / off control is performed by the control server device 200 by a wireless control method using Wi-Fi. The LED lighting device 500 uses an LED lamp with a dimming function in consideration of low power consumption, and the dimming function is configured to be capable of remote control via Wi-Fi.

  The illumination system is not limited to the LED illumination device 500, and for example, an incandescent lamp or a fluorescent lamp can be used.

  The air conditioner 700 is remotely controlled by the control server device 200 to turn on / off the power. That is, the air conditioner 700 can be individually controlled remotely, and the control targets are the air direction and the air blowing intensity in addition to the on / off of the air conditioner 700. In this embodiment, although control is not performed about the temperature and humidity which ventilate, it is not limited to this, Temperature and humidity can also be made into a control object.

  The tap 600 is provided with a plurality of outlets, and power supply on / off of each outlet is remotely controlled by the control server device 200. That is, the tap 600 is provided with an on / off switch that can be remotely controlled individually for each outlet. The on / off control is performed by the control server device 200 using a Wi-Fi wireless control scheme. The number of outlets included in one tap 600 can be an arbitrary number. As an example, a tap 600 with three outlets can be used.

  As shown in FIG. 6, one tap 600 is installed on each desk. The tap 600 can be connected to an electrical device (not shown), specifically, a desktop PC, a display device, a notebook PC, a printer device, and chargers. Further, the tap 600 has a function of measuring the amount of power supplied to the electrical device connected to the outlet of the tap 600 for each outlet, and transmitting power information representing the amount of power supplied for each electrical device to the control server device 200. . Details of the tap 600 will be described later.

  In the present embodiment, the power source of the display device, which is a device in which a direct relationship with a person is important, is connected to the outlet of the tap 600. The display device is a device that can be controlled by turning on / off the power supplied to the outlet of the tap 600 by the control server device 200.

  Even when the desktop PC main body or the printer device is connected to the outlet of the tap 600, the control server device 200 cannot control the power supplied to the outlet of the tap 600 by turning on / off due to the configuration of the device. For this reason, for desktop PCs, control software can be controlled by installing control software that can shift to the power saving mode or shutdown via the network, and return from the power saving mode or shutdown state. Is a manual operation by the user himself.

  When a charger or a notebook PC at the time of charging is connected to the outlet of the tap 600, it is always turned on for convenience. Note that the devices connected to the outlet of the tap 600 are not limited to these.

  Returning to FIG. 1, the positioning server device 100 receives the detection data of each sensor described above from each smartphone 300 or sensor group 301 possessed by a person in the room that is the control target area, and detects the position of each person in the room. The operating status is detected, and the position and operating status are transmitted to the control server device 200.

  FIG. 7 is a block diagram showing a functional configuration of the positioning server device 100. As shown in FIG. 7, the positioning server device 100 mainly includes a communication unit 101, a position specifying unit 102, an operation state detection unit 103, a correction unit 104, and a storage unit 110.

  The storage unit 110 is a storage medium such as a hard disk drive (HDD) or a memory, and stores various information necessary for processing of the positioning server device 100 such as indoor map data that is a control target area.

  The communication unit 101 detects each of the acceleration sensor, the angular velocity sensor, and the geomagnetic sensor mounted on the smartphone 300 or the acceleration sensor, the angular velocity sensor, and the geomagnetic sensor of the sensor group 301 separate from the smartphone 300 at regular intervals. Receive data. That is, the communication unit 101 receives an acceleration vector from the acceleration sensor, receives an angular velocity vector from the angular velocity sensor, and receives a magnetic orientation vector from the geomagnetic sensor.

  In addition, the communication unit 101 receives a captured image from the monitoring camera 400. Furthermore, the communication unit 101 transmits an operation state such as an absolute position of a human, which will be described later, a direction, and a posture, to the control server device 200.

  The position specifying unit 102 analyzes the received detection data and specifies the absolute position of the person in the room with the accuracy of the human shoulder width or stride. Details of the method of specifying the absolute position of the human by the position specifying unit 102 will be described later.

  The operation state detection unit 103 analyzes the received detection data and detects a human operation state. In the present embodiment, the movement state detection unit 103 detects whether the human is in a stationary state or a walking state as the movement state. Further, when the operation state is a stationary state, the operation state detection unit 103 indicates the operation state of the human direction with respect to the device in the control target area and whether the human posture is a standing state or a seating state based on the detection data. To detect.

  That is, when it is detected from the captured image from the monitoring camera 400 that the person has entered the room through the door, the operation state detection unit 103 detects the acceleration sensor, the angular velocity sensor, and the geomagnetic sensor of the smartphone 300 attached to the person who has entered the room. Or, using the time series data of the acceleration vector and the angular velocity vector among the detection data sequentially received from the acceleration sensor, the angular velocity sensor, and the geomagnetic sensor of the sensor group 301 separate from the smartphone 300, the human operating situation is Sequentially determine whether walking or standing. Here, the method of determining whether the human motion state is the walking state using the acceleration vector and the angular velocity vector is realized by the processing by the dead reckoning device disclosed in Japanese Patent No. 4243684. Then, when it is determined that the person is not in a walking state by this method, the operation state detection unit 103 determines that the person is in a stationary state.

  More specifically, the operation state detection unit 103 detects a human operation state as follows, similarly to the processing by the dead reckoning device disclosed in Japanese Patent No. 4243684.

  That is, the operation state detection unit 103 obtains a gravitational acceleration vector from the acceleration vector received from the acceleration sensor and the angular velocity vector received from the angular velocity sensor, subtracts the gravitational acceleration vector from the acceleration vector, and removes the vertical acceleration. Obtain time-series data of residual acceleration components. Then, the motion state detection unit 103 performs principal component analysis on the time-series data of the residual acceleration component to obtain the traveling direction of the walking motion. Furthermore, the motion state detection unit 103 searches for a pair of peak and valley peaks of the acceleration component in the vertical direction, and searches for a pair of valley peak and peak of the acceleration component in the traveling direction. Then, the operation state detection unit 103 calculates the gradient of the acceleration component in the traveling direction.

  Furthermore, the operation state detection unit 103 determines whether or not the gradient of the acceleration component in the traveling direction is equal to or greater than a predetermined value at the detection time of the valley peak at which the vertical acceleration component changes from the peak to the peak. If it is equal to or greater than the predetermined value, it is determined that the human motion state is a walking state.

  On the other hand, in the above processing, a peak-to-valley peak pair in the vertical acceleration component is not searched, or a trough peak-to-peak peak pair in the traveling acceleration component is not searched, or a vertical acceleration is detected. When the gradient of the acceleration component in the traveling direction is less than a predetermined value at the time of detection of the valley peak at which the component changes from the peak to the valley peak, the motion status detection unit 103 indicates that the human motion status is stationary. It is determined that

  If it is determined that the person is in a stationary state, the position specifying unit 102 determines that the position of the door is a stationary state from the reference position using the acceleration vector, the angular velocity vector, and the magnetic orientation vector as the reference position. The relative movement vector to the specified position is obtained. Here, as a method of calculating the relative movement vector using the acceleration vector, the angular velocity vector, and the magnetic azimuth vector, the method disclosed in the processing of the dead reckoning device disclosed in JP 2011-47950 A is used.

  More specifically, the position specifying unit 102 obtains a relative movement vector as follows, similarly to the processing of the dead reckoning device disclosed in JP 2011-47950 A.

  That is, the position specifying unit 102 obtains a gravity azimuth vector from the acceleration vector received from the acceleration sensor and the angular velocity vector received from the angular velocity sensor, and from the gravity azimuth vector and the magnetic azimuth vector received from the angular velocity vector or the geomagnetic sensor, The attitude angle is calculated as the moving direction. The position specifying unit 102 obtains a gravitational acceleration vector from the acceleration vector and the angular velocity vector, and calculates an acceleration vector generated by the walking motion from the gravitational acceleration vector and the acceleration vector. Then, the position specifying unit 102 analyzes and detects the walking motion from the gravitational acceleration vector and the acceleration vector generated by the walking motion, and determines the magnitude of the walking motion based on the detection result. And the acceleration vector generated by the walking motion, and the measurement result is used as a stride. Then, the position specifying unit 102 obtains a relative movement vector from the reference position by integrating the movement direction and the stride thus obtained. That is, the human position is detected in real time with an accuracy of human stride or shoulder width, for example, approximately 60 cm or less (more specifically, approximately 40 cm or less).

  When the relative movement vector is calculated in this way, the position specifying unit 102 specifies the absolute position after the movement of the person from the relative movement vector from the door and the indoor map data stored in the storage unit 110. To do.

  As a result, the position specifying unit 102 can specify up to which desk the person is located in the room. As a result, the shoulder width of the person, for example, approximately 60 cm or less (more specifically, approximately 40 cm). It is possible to specify the position of a person with an accuracy of less than about).

  The higher the position accuracy, the better. For example, assuming a scene in which two or more people are having a conversation, it is rare that they talk in contact with each other, and they are separated by a certain distance. Accordingly, when considering accuracy, the accuracy corresponding to the shoulder width or stride of a person, whether standing or sitting, is equivalent to the length from the waist to the knee.

  According to the anthropometric data published by the Ministry of Health, Labor and Welfare (Makiko Kawachi, Masaaki Mochimaru, Hiroshi Iwasawa, Seiji Mitani (2000): Japanese Human Body Size Database 1997-98, Ministry of International Trade and Industry, Industrial Technology Institute and JIS Center) The data (shoulder width) corresponding to the shoulder width of adolescents and elderly men and women is about 35 cm (34.8 cm) for the elderly women with the lowest average value, and about 40 cm (39.7 cm) for the highest adolescent men It has become. Similarly, the difference between the length from the waist to the knee (pubic bone joint upper edge height−femoral outer epicondyle height) is about 34 cm to about 38 cm. On the other hand, the stride when a person moves is 95 steps when walking 50 m, and is about 53 cm (50 ÷ 95 × 10) from now on, and the position detection method used in the present invention can have an accuracy equivalent to the stride. Therefore, the present embodiment is configured based on the above data on the assumption that the accuracy is 60 cm or less, preferably 40 cm or less. These data serve as a standard for considering accuracy, but are based on the Japanese and are not limited to these values.

  Further, when the absolute position of the person is specified and the person is stationary at the seat in front of the desk, the operation state detection unit 103 determines whether the human display device is in accordance with the direction of the magnetic direction vector received from the geomagnetic sensor. Determine the direction (orientation). In addition, when the person is stationary at the seat in front of the desk, the operation state detection unit 103 determines the posture of the person, that is, whether the person is standing or sitting from the acceleration component in the vertical direction of the acceleration vector.

  Here, as in the dead reckoning device disclosed in Japanese Patent No. 4243684, the gravitational acceleration vector is determined from the acceleration vector received from the acceleration sensor and the angular velocity vector received from the angular velocity sensor. Obtain the acceleration component in the vertical direction. Then, similarly to the dead reckoning device disclosed in Japanese Patent No. 4243684, the operation state detection unit 103 obtains peaks of peaks and valleys of acceleration components in the vertical direction.

  FIG. 8 is a diagram illustrating waveforms of acceleration components in the vertical direction when the sitting operation and the standing operation are performed. As shown in FIG. 8, in the case of the seating operation, the interval from the peak of the peak of the acceleration component in the vertical direction to the peak of the valley is about 0.5 seconds. On the other hand, in the standing motion, the interval from the peak of the vertical acceleration component to the peak of the peak is about 0.5 seconds. For this reason, the operation state detection unit 103 determines whether the person is in a sitting state or a standing state based on the interval between the peaks. That is, when the interval from the peak of the peak of the acceleration component in the vertical direction to the peak of the valley is within a predetermined range from 0.5 seconds, the motion state detection unit 103 determines that the human motion state is the sitting state. judge. Further, when the interval between the peak of the vertical acceleration component valley and the peak of the mountain is within a predetermined range from 0.5 seconds, the motion state detection unit 103 determines that the human motion state is the standing state. judge.

  As described above, when the motion state detection unit 103 determines whether the human motion state is the standing state or the seated state, the position in the height direction of the human is approximately 50 cm or less (more specifically, approximately 40 cm or less). It means that it was detected with the accuracy of.

  Further, as in the example shown in FIG. 3, a smartphone 300 equipped with information devices for detecting human motion such as an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor is worn on the waist, and further, the acceleration sensor, the angular velocity sensor, and the geomagnetism are mounted. When a small headset-type sensor group 301 including sensors is mounted on the head, the operation state detection unit 103 can further detect the following human postures and movements.

  FIG. 9 is a diagram showing waveforms of angular velocity components in the horizontal direction when the squatting operation and the standing operation are performed. From the acceleration data from the acceleration sensor, waveforms similar to those of the seating motion and the standing motion shown in FIG. 8 are detected, but it is difficult to discriminate the squatting motion and the standing motion only from the acceleration data.

  For this reason, the motion state detection unit 103 uses the above-described method for discriminating between the sitting motion and the standing motion based on the waveform of FIG. 8, and the temporal change in the angular velocity data in the horizontal direction received from the angular velocity sensor becomes the waveform of FIG. By judging whether or not they match, a squatting action and a standing action are discriminated.

  Specifically, the operation state detection unit 103 first has an interval from the peak of the vertical acceleration component to the peak of the valley based on the acceleration vector received from the acceleration sensor within a predetermined range from 0.5 seconds. Determine whether or not.

  When the interval from the peak of the peak of the acceleration component in the vertical direction to the peak of the valley is within a predetermined range from 0.5 seconds, the motion state detection unit 103 detects the horizontal direction of the angular velocity vector received from the angular velocity sensor. As shown in the waveform of FIG. 9, the angular velocity component of gradually increases from 0, then reaches a peak of the mountain with a rapid increase, gradually decreases from the peak of the mountain, then gradually returns to 0, and the time between Is about 2 seconds, it is determined that the human action is a squatting action.

  In addition, the operation state detection unit 103 determines whether or not the interval from the peak of the valley of the acceleration component in the vertical direction to the peak of the peak is within a predetermined range from 0.5 seconds. When the interval from the peak of the valley of the acceleration component in the vertical direction to the peak of the mountain is within a predetermined range from 0.5 seconds, the motion state detection unit 103 performs the horizontal direction of the angular velocity vector received from the angular velocity sensor. When the angular velocity component of the peak reaches the valley peak stepwise from 0, gradually returns to 0 from the valley peak, and the time between them is about 1.5 seconds, as shown in the waveform of FIG. It is determined that the human motion is a standing motion.

  As the angular velocity vector used in the determination of the squatting motion and the standing motion in the motion state detection unit 103 as described above, it is preferable to use an angular velocity vector received from an angular velocity sensor mounted on the head. This is because the angular velocity component in the horizontal direction based on the angular velocity vector from the angular velocity sensor worn on the head shows the waveform shown in FIG.

  FIG. 10 is a diagram illustrating a waveform of an angular velocity component in the vertical direction when a human performs an operation of changing the direction by approximately 90 degrees in a stationary state. If the angular velocity component in the vertical direction is positive, the direction is changed to the right side, and if it is negative, the direction is changed to the left side.

  The operation state detection unit 103 gradually changes the angular velocity component in the vertical direction of the angular velocity vector received from the angular velocity sensor from 0 to gradually reaching the peak of the mountain as shown in FIG. When it returns and the time between these is about 3 seconds, it determines with the operation | movement changing a direction to the right.

  Further, the operation state detection unit 103 gradually returns to 0 after the time-dependent change in the angular velocity component in the vertical direction reaches the peak of the valley gradually from 0 as shown in the waveform of FIG. Is about 1.5 seconds, it is determined that the direction changes to the left.

  The motion state detection unit 103 is similar to the waveform of FIG. 10 according to the above-described determination in terms of the vertical angular velocity component of the angular velocity vector received from both the angular velocity sensor of the head and the angular velocity sensor of the hip smartphone 300. When the change over time is indicated, it is determined that the movement of the whole body changes to the right or left.

  On the other hand, the motion state detection unit 103 shows that the vertical angular velocity component of the angular velocity vector received from the angular velocity sensor of the head shows a temporal change similar to the waveform of FIG. When the angular velocity component in the vertical direction of the angular velocity vector from the angular velocity sensor shows a temporal change that is completely different from the waveform of FIG. 10, it is determined that the direction of the head is changed to the right or left. As such an operation, for example, a posture operation in the case of communicating with an adjacent user while the user is seated can be considered.

  FIG. 11 is a diagram showing the waveform of the angular velocity component in the horizontal direction of the angular velocity vector received from the angular velocity sensor of the head when the line of sight is removed from the display in the sitting state.

  Consider a case where the position specifying unit 102 determines that the absolute position of a person is in front of a desk, and the operation state detecting unit 103 detects that a person in front of the desk is in a sitting state. In such a case, the motion state detection unit 103 gradually reduces the angular velocity component in the horizontal direction of the angular velocity vector received from the angular velocity sensor of the human head from 0 like the waveform shown in FIG. And then suddenly returns to 0, and the time between them is about 1 second, it is determined that the action is to remove the line of sight from the display in the seated state (the action to look up). Further, the operation state detection unit 103 reaches the peak of the mountain while the angular velocity component in the horizontal direction gradually increases from 0 as in the waveform shown in FIG. 11, and then gradually returns to 0. When the time is about 1.5 seconds, it is determined that the operation is to return the line of sight to the display from the state where the line of sight is removed from the display in the sitting state.

  FIG. 12 is a diagram showing the waveform of the angular velocity component in the horizontal direction of the angular velocity vector received from the angular velocity sensor of the head when the line of sight is removed from the display in the sitting state.

  Consider a case where the position specifying unit 102 determines that the absolute position of a person is in front of a desk, and the operation state detecting unit 103 detects that a person in front of the desk is in a sitting state. In such a case, the motion state detection unit 103 causes the angular velocity component in the horizontal direction of the angular velocity vector received from the angular velocity sensor of the human head to rapidly increase from 0 as shown in the waveform shown in FIG. If it returns to 0 rapidly after that, and the time between them is about 0.5 seconds, it is determined that the action is to take the line of sight down from the display in the seated state (looking down) .

  Further, the operation state detection unit 103 reaches the peak of the valley while the angular velocity component in the horizontal direction decreases rapidly from 0 as in the waveform shown in FIG. 12, and then suddenly returns to 0. When the time is about 1 second, it is determined that the operation is to return the line of sight to the display from the state where the line of sight is removed from the display in the sitting state.

  As described above, the motion state detection unit 103 is a posture and motion that an office worker can take on a daily basis, that is, walking (standing state), standing (stationary state), sitting on a chair, squatting during work, sitting state Alternatively, it is possible to determine by the above-described method whether the direction (direction) is changed in the standing state, looking up at the heaven in the sitting state or the standing state, whispering in the sitting state or the standing state, and the like.

  In addition, when using the technique of the dead reckoning device of patent 4243684, as disclosed in patent 4243684, the lifting and lowering motion of a human by an elevator is also determined using the acceleration component in the vertical direction. .

  For this reason, in the present embodiment, the operation state detection unit 103 uses the function of the map matching device disclosed in Japanese Patent Application Laid-Open No. 2009-14713, and the vertical acceleration component in FIG. When the detected waveform is detected, it is possible to determine with high accuracy whether it is a standing motion or a seating motion, unlike the elevator lifting / lowering motion of the dead reckoning device disclosed in Japanese Patent No. 4243684.

  The correction unit 104 corrects the specified absolute position and operation status (direction and posture) based on the captured image from the monitoring camera 400 and the map data stored in the storage unit 110. More specifically, the correction unit 104 determines whether or not the absolute position, direction, and posture of the human determined as described above are correct by image analysis of a captured image of the monitoring camera 400 or the like, And the function of the map matching device disclosed in Japanese Patent Application Laid-Open No. 2009-14713. If it is incorrect, the correction unit 104 corrects the correct absolute position, direction, and orientation obtained from the captured image and the map matching function.

  The correction unit 104 is configured to perform correction using limited means such as short-range wireless and optical communication such as RFID and Bluetooth (registered trademark) as well as a captured image from the monitoring camera 400. Also good.

  In this embodiment, the same technology as the dead reckoning device disclosed in Japanese Patent No. 4243684 and Japanese Patent Application Laid-Open No. 2011-47950, and the same technology as the map matching device disclosed in Japanese Patent Application Laid-Open No. 2009-14713. Is used to detect a human motion state, a relative movement vector from a reference position, and a posture (whether standing or sitting), but the detection method is not limited to these techniques. Further, in the above description, when it is determined that the human movement state is stationary, the human position is identified and the movement state such as direction and posture is detected. Similarly, when the is in a walking state, the absolute position in the room of the person may be specified and the operation status such as the direction and the posture may be detected.

  In addition, as a technique capable of detecting a human position, in addition to the method described above performed by the positioning server device 100 based on detection data of an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor, for example, entrance / exit management using an IC card or the like , Human detection by a human sensor, a method using a wireless LAN, a method using an indoor GPS (IMES), a method for processing an image captured by a camera, a method using an active RFID, and visible light communication Methods are known.

  In the entrance / exit management using an IC card or the like, personal identification is possible, but the positioning accuracy is extremely low for the entire management target area. Therefore, although it is possible to know who is in the area, it is not possible to grasp the human activity status in the area.

  Human detection by a human sensor can obtain a positioning accuracy of about 1 to 2 m which is a detection range of the human sensor, but individual identification cannot be performed. In addition, in order to grasp the human activity state in the area, it is necessary to disperse and arrange a large number of human sensors in the area.

  In the method using a wireless LAN, the distance between one wireless LAN terminal possessed by a human and a plurality of LAN access points installed in the area is measured, and the position of the human in the area is determined by the principle of triangulation. Is identified. Although this method enables individual identification, the positioning accuracy is highly dependent on the environment, and the positioning accuracy is generally as low as 3 m or more.

  In the method using indoor GPS, a dedicated transmitter that emits radio waves in the same frequency band as that of GPS satellites is installed indoors, and a signal in which position information is embedded in a portion where normal GPS satellites transmit time information from the transmitter is used. Send. Then, the signal is received by a receiving terminal possessed by an indoor person, thereby specifying the position of the person inside. Although this method can identify individuals, the positioning accuracy is as low as about 3 to 5 m. In addition, it is necessary to install a dedicated transmitter, which increases the introduction cost.

  Although the method for image processing of the captured image of the camera can obtain a relatively high positioning accuracy of about several tens of centimeters, it is difficult to perform individual identification. For this reason, in the positioning server device 100 of this embodiment, the captured image of the monitoring camera 400 is used only when correcting the absolute position, direction, and posture of the employee.

  In the method using active RFID, a person has an RFID tag with a built-in battery, and the position of the person is specified by reading information of the RFID tag with a tag reader. Although this method enables individual identification, the positioning accuracy is highly dependent on the environment, and the positioning accuracy is generally as low as 3 m or more.

  The method using visible light communication enables individual identification and relatively high positioning accuracy of about several tens of centimeters. However, humans cannot be detected in places where the visible light is blocked, and natural light and other Since there are many noise sources and interference sources such as visible light, it is difficult to maintain the stability of detection accuracy.

  In contrast to these technologies, the method performed by the positioning server device 100 according to the present embodiment is capable of individual identification, and obtains high positioning accuracy equivalent to a human shoulder width or stride. , Can detect human operating situation. Specifically, according to the method performed by the positioning server device 100 according to the present embodiment, the posture and motion that an office employee can take on a daily basis, that is, walking (standing state) or standing up as a human operating state. (Stationary state), sitting on a chair, squatting during work, changing direction (direction) when sitting or standing, looking up to the heavens when sitting or standing, and detecting whispering while sitting or standing it can.

  For this reason, in this embodiment, the positioning server device 100 uses the above-described method based on the detection data of the acceleration sensor, the angular velocity sensor, and the geomagnetic sensor of the smartphone 300 and the sensor group 301, and the employee in the office that is the control target area. The absolute position of the worker and the operation status of the employee are detected. However, the method for detecting the absolute position of the employee in the office, which is the control target area, and the operation status of the employee is not limited to the method described above performed by the positioning server device 100. One or more of the other methods described above may be used in the above-described method performed by the positioning server device 100. The absolute position and the operation status of the employee may be detected by a combination of one or more methods. May be combined to detect the absolute position and operational status of the employee.

  Next, details of the control server device 200 will be described. The control server device 200 includes a plurality of LED lighting devices 500, a plurality of taps 600, and a plurality of air conditioners installed in the room based on the position and operation state (direction, posture) of the person in the room that is the control target area. Each of the 700s is remotely controlled via a network.

  FIG. 13 is a block diagram illustrating a functional configuration of the control server device 200 according to the present embodiment. As shown in FIG. 13, the control server device 200 of this embodiment mainly includes a communication unit 201, a power consumption management unit 202, a device control unit 210, and a storage unit 220.

  The storage unit 220 is a storage medium such as an HDD or a memory, and stores various kinds of information necessary for processing of the positioning server device 100 such as position data of a room that is a control target area.

  The communication unit 201 receives the absolute position and motion information (direction, posture) of the person from the positioning server device 100. The communication unit 201 receives power information from the plurality of LED lighting devices 500, the plurality of taps 600, and the plurality of air conditioners 700. In particular, the power information received from the tap 600 is information representing the amount of power supplied to each electrical device for each electrical device connected to each outlet of the tap 600. In addition, the communication unit 201 transmits a control signal for performing power control to the plurality of LED lighting devices 500, the plurality of taps 600, and the plurality of air conditioners 700.

  Based on the power information received by the communication unit 201, the power consumption management unit 202 manages the power consumption of the plurality of LED lighting devices 500, the electrical devices connected to the outlets of the plurality of taps 600, and the plurality of air conditioners 700. To do. By making it possible to display power consumption information managed by the power consumption management unit 202 on, for example, a display, it is possible to realize “visualization” of power consumption and to grasp the breakdown of power consumption.

  The device control unit 210 includes a lighting device control unit 211, an outlet control unit 213, and an air conditioner control unit 215. The lighting device control unit 211 controls the LED lighting device 500 based on the absolute position and motion information (direction, posture) of the person. More specifically, the lighting device control unit 211 sets the lighting range to be narrower than a predetermined range if the person is seated on the LED lighting device 500 disposed in the vicinity of the received absolute position, A control signal for setting the illuminance higher than a predetermined threshold is transmitted via the communication unit 201. As a result, it is possible to control the illumination range and illuminance suitable for fine work for a user who is working in a sitting state.

  On the other hand, the lighting device control unit 211 communicates a control signal for setting the illumination range wider than the predetermined range and setting the illuminance lower than the predetermined threshold if the person is standing up to the LED lighting device 500. The data is transmitted via the unit 201. This makes it possible to control the illumination range and illuminance so that a standing user can look over the entire room.

  The outlet control unit 213 controls power on / off of the outlet of the tap 600 based on the absolute position of the person and the operation information (direction, posture). More specifically, for example, the outlet control unit 213 is seated with respect to the display device connected to the outlet of the tap 600 arranged in the vicinity of the received absolute position, and the direction with respect to the display device. Is forward, the control signal for turning on the switch of the outlet connected to the display device at the tap 600 is transmitted via the communication unit 201.

  On the other hand, when the person is standing or the direction with respect to the display device is rearward with respect to the display device connected to the outlet of the tap 600, the outlet control unit 213 displays the display device at the tap 600. A control signal for turning off the connected outlet is transmitted via the communication unit 201.

  As described above, the power control is performed according to the direction of the person with respect to the display device, and the display device is an important device in the direct relationship with the person, and it is determined that the display device is used when the direction is forward. Because it can be done. Further, when the human posture is also in the sitting state, it can be determined that the display device is being used. As described above, in the present embodiment, power control is performed in consideration of the actual use of the device, and finer control can be performed as compared with the case where the power control is simply performed based on the distance from the device. It becomes.

  Furthermore, the outlet control unit 213 according to the present embodiment can perform power control of electrical devices such as a desktop PC main body and a display device connected to the outlet of the tap 600 in conjunction with human personal recognition information. For example, the personal authentication information is transmitted from the smartphone 300 possessed by a person in the room to the positioning server device 100 and transmitted from the positioning server device 100 to the control server device 200. Using the personal authentication information, the outlet control unit 213 can perform power control on an electrical device associated with each person in the room. The correspondence relationship between each person and the electrical device may be stored in the storage unit 220 as a part of the registration information described above, for example. In addition, which electrical device is connected to each outlet of the tap 600 is recognized by a method described later and sent to the control server device 200.

  The air conditioner control unit 215 controls on / off of the power supply of the air conditioner 700 based on the absolute position of the person. More specifically, the air conditioner control unit 215 transmits, via the communication unit 201, a control signal for turning on the power of the air conditioner 700 set in the group in which the received seat at the absolute position exists.

  Next, the detection process by the positioning server device 100 of the present embodiment configured as described above will be described. FIG. 14 is a flowchart illustrating the procedure of the detection process performed by the positioning server device 100 according to the present embodiment. The detection process according to the flowchart is executed for each of the plurality of smartphones 300.

  In addition to the detection process according to this flowchart, the positioning server device 100 includes an acceleration sensor, an angular velocity sensor, a geomagnetic sensor, or an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor mounted on the plurality of smartphones 300. Detection data (acceleration vector, angular velocity vector, magnetic direction vector) is received from each sensor at regular intervals, and captured images are received from a plurality of monitoring cameras 400.

  First, it is determined whether or not a person has entered a room, which is a control target area, based on a captured image of a door to be opened and closed (step S11). If the user has not entered the room (step S11: No), the positioning server device 100 determines whether or not the person has left the room (step S20). If the user has not left the room (step S20: No), the process returns to step S11 and is repeated. If the user leaves the room (step S20: Yes), the detection process is terminated. When the user enters the room (step S11: Yes), the operation state detection unit 103 detects the operation state of the person who has entered the room using the method described above (step S12). Then, the operation state detection unit 103 determines whether or not the human operation state is a walking state (step S13), and repeats detection of the operation state while it is a walking state (step S13: Yes).

  On the other hand, when the human motion state is not the walking state in step S13 (step S13: No), the motion state detection unit 103 determines that the human motion state is the stationary state. And the position specific | specification part 102 calculates a relative movement vector from a door by the above-mentioned method by making a reference | standard position into a door (step S14).

  Then, the position specifying unit 102 specifies the absolute position of the human being in a stationary state based on the map data of the room stored in the storage unit 110 and the relative movement vector from the door (step S15). As a result, the position specifying unit 102 can specify up to which desk the person is placed in the room, and as a result, the shoulder width of the person (approximately 60 cm or less, more specifically approximately 40 cm or less). The position of the person is specified with the accuracy of.

  Next, the operation state detection unit 103 further detects the direction (orientation) of the human display device from the magnetic direction vector received from the geomagnetic sensor as the operation state of the human being in a stationary state (step S16).

  Next, the motion state detection unit 103 detects the posture of whether the human body is sitting or standing by the above-described method (step S17). As a result, the operation state detection unit 103 detects the position in the height direction of the human with an accuracy of approximately 50 cm or less (more specifically, approximately 40 cm or less).

  In addition, the operation state detection unit 103 may determine whether the human operation state is a squatting operation or a standing operation, an operation for changing the orientation in the sitting state, an operation for returning the direction, an operation for raising the line of sight in the sitting state, or an operation for returning the line of sight. Whether the action of lowering the line of sight or the action of returning the line of sight may be detected.

  Next, the correction unit 104 determines whether or not correction is necessary for the specified absolute position, detected direction, and posture as described above, and corrects if necessary (step S18).

  Then, the communication unit 101 transmits the absolute position, the detected direction and orientation (if corrected, the corrected absolute position, the detected direction and orientation) to the control server device 200 as detection result data. (Step S19). In the above description, when it is determined that a human motion state is stationary, the absolute position, direction, and posture of the human being are transmitted to the control server device 200 as detection result data. Similarly, when the motion state is the walking state, the absolute position, direction, and posture of the person may be transmitted to the control server device 200 as detection result data.

  Next, device control processing by the control server device 200 will be described. FIG. 15 is a flowchart illustrating a procedure of device control processing according to the present embodiment.

  First, the communication unit 201 receives the absolute position, direction, and posture of a person as detection result data from the positioning server device 100 (step S31). Next, each control unit 211, 213, 215 of the device control unit 210 specifies the LED lighting device 500, the tap 600, and the air conditioner 700 to be controlled from the absolute position of the received detection result data (step S32).

  More specifically, the lighting device control unit 211 refers to the position data stored in the storage unit 220 and specifies the LED lighting device 500 installed on the desk corresponding to the absolute position as a control target. Further, the outlet control unit 213 refers to the position data stored in the storage unit 220 and specifies the tap 600 installed near the desk corresponding to the absolute position as a control target. The air conditioner control unit 215 refers to the position data stored in the storage unit 220 and specifies the air conditioner 700 installed corresponding to a group having a desk corresponding to the absolute position as a control target.

  Next, the air conditioner control unit 215 performs control to turn on the power of the identified air conditioner 700 (step S33).

  Next, the outlet control unit 213 determines whether or not the direction of the received detection result data is forward and whether or not the posture of the detection result data is a seated state (step S34). If the direction is the front and the posture is the seating state (step S34: Yes), the outlet control unit 213 turns on the outlet connected to the display device at the tap 600 specified in step S32. Control is performed (step S35).

  On the other hand, when the direction is rearward or the posture is standing in step S34 (step S34: No), the outlet control unit 213 connects the display device at the tap 600 specified in step S32. Control is performed to turn off the outlet switch (step S36).

  Next, the lighting device control unit 211 determines again whether or not the posture of the received detection result data is the seating state (step S37). When the posture is the seated state (step S37: Yes), the lighting device control unit 211 sets the illumination range of the LED lighting device 500 specified in step S32 to be narrower than the predetermined range, and sets the illuminance to a predetermined threshold value. Control to set higher is performed (step S38).

  On the other hand, when the posture is in the standing state in step S37 (step S37: No), the illumination device control unit 211 sets the illumination range of the LED illumination device 500 specified in step S32 to be wider than the predetermined range, and the illuminance Is set to be lower than a predetermined threshold value (step S39).

  In addition, you may comprise each control part 211,213,215 of the apparatus control part 210 so that control other than the control mentioned above may be performed with respect to each control object apparatus.

  In addition, the human movement status is squatting or standing, changing the orientation in the sitting state, returning it, raising the line of sight in the sitting state (looking up), returning the line of sight, or looking in the sitting state. The control units 211, 213, and 215 of the device control unit 210 may be configured to control each control target device depending on whether the operation is to lower (look down) or return the eye.

  Examples of each operation, control target device and control method in such a case are as follows. These operations are operations that can occur when it is assumed that an operator is sitting in front of a desk, and the controlled device is a desktop fan corresponding to a PC or a display device of a PC, a desk lamp, and individual air conditioning. Etc.

  For example, when it is determined that the operation of squatting continues for a certain time or more from the received detection result data when the worker is at the desk, the switch of the tap port to which the power source of the PC is connected is turned off. Thus, the outlet control unit 213 can be configured. In addition, the mode control unit can be configured so that the device control unit 210 is provided with a mode control unit that controls the mode of the device, and the display device of the PC is shifted to the standby mode.

  In addition, when the standing operation is detected from the sitting state and the standing state continues for a certain time or more, the mode control unit is configured to shift the PC to the standby mode, or the power supply of the display device is connected at the same time. The outlet control unit 213 can be configured to turn off the switch of the tapped port.

  The following control is given as an example for the operation of changing the direction. If a change in the orientation of the face or upper body is detected from the state of sitting at the desk, and this state continues for a certain period of time, the situation may be such as a conversation with another worker in an adjacent seat. If the lighting device such as a PC, a display device, or a desk lamp is set to standby or off, and it is detected that the orientation of the worker has returned to the original state, the lighting device such as a PC, a display device, or a desk lamp is turned on. The outlet control unit 213 and the mode control unit can be configured so as to be turned on.

  Further, it is conceivable to perform an operation of looking down when the worker reads a document at a desk, and to perform an operation of looking up at the ceiling when the worker comes up with or thinks of an idea. For this reason, when an operation of looking up or looking down for a certain time or longer is continuously detected, the outlet control unit 213 performs control to shift the PC to the standby mode or to turn off the display device. A mode control unit can be configured. Further, in the case of an operation to look down, the outlet control unit 213 may be configured to perform control without turning off the desk lamp.

  As described above, in the present embodiment, the position of the person is specified with the accuracy of the shoulder width, the direction and posture of the person is detected, and the power control of the equipment is performed. Therefore, the power control of the equipment with finer precision is possible. Thus, it is possible to realize further power saving and energy saving while maintaining worker comfort and high work efficiency.

  In other words, in this embodiment, not only can a person be detected, but the equipment owned by the person, the lighting equipment directly above the desk on which the person sits, the air conditioner, and the office equipment can be individually controlled, and each person can be controlled. It is possible to simultaneously grasp the amount of power used.

  In the prior art, even if the power of buildings, offices, factories, and offices can be realized so-called "visualization", it is unclear how individuals can save power, and the overall target value If the situation is not tight, such as exceeding the power supply amount or exceeding the amount of power supplied, it is difficult to proceed continuously because it is difficult to be aware of power savings. It is possible to realize further power saving and energy saving while maintaining efficiency.

  Further, according to the present embodiment, even in automatic device control, power saving can be further improved by performing cooperative control between devices as well as people and devices.

  Next, a specific example of the tap 600 of the present embodiment will be described in detail in comparison with a comparative example.

  FIG. 16 is a diagram illustrating a configuration example of a conventional tap illustrated as a comparative example. As shown in FIG. 16, the tap 800 of the comparative example includes three outlets 801a, 801b, and 801c. The outlets 801a to 801c are connected in parallel to the power plug 802 of the tap 800, and the power plug 802 is connected to a commercial power source by being inserted into a commercial power outlet (not shown). Ammeters 803a, 803b, and 803c are provided between the power plug 802 and the outlets 801a to 801c, respectively, and currents flowing from the commercial power source to the outlets 801a to 801c are measured by the ammeters 803a to 803c. The measurement values of the ammeters 803a to 803c are sent to the control unit 810. The control unit 810 can measure the amount of power supplied to the electrical devices connected to the outlets 801a to 801c from the measured values of the ammeters 803a to 803c.

  In addition, the tap 800 of the comparative example is provided with tag readers 804a, 804b, and 804c for reading the unique information of the electric device from the wireless tag attached to the plug of the electric device for each of the outlets 801a to 801c. When the plugs of the electric devices are inserted into the corresponding outlets 801a to 801c, the tag readers 804a to 804c read the unique information of the electric devices from the wireless tags of the plugs and send them to the control unit 810. The control unit 810 can recognize the electrical devices connected to the outlets 801a to 801c based on the unique information of the electrical devices sent from the tag readers 804a to 804c.

  As described above, the tap 800 according to the comparative example uses the tag readers 804a to 804c provided for the outlets 801a to 801c to obtain the unique information of the electric device from the wireless tags of the plugs inserted into the outlets 801a to 801c. It is a configuration for reading. For this reason, there exists a problem of causing the enlargement and cost increase of an apparatus.

  Here, in the tap 800 of the comparative example, one tag reader 804 is used in place of the three tag readers 804a to 804c, and the unique information of the electric device is obtained from the wireless tag of the plug inserted into each of the outlets 801a to 801c by the tag reader 804. Let us consider the case of a configuration that reads In the case of this configuration, the three tag readers 804a to 804c are integrated into one tag reader 804, so that the problem of increase in size and cost of the apparatus can be solved.

  However, when the tap 800 of the comparative example is configured to read the unique information of the electrical device from the wireless tag of the plug inserted into each of the outlets 801a to 801c with one tag reader 804, which electrical device is connected in the entire tap 800. However, it is not possible to recognize which electrical device is connected to which of the three outlets 801a to 801c. For example, as shown in FIG. 17A, the electrical device A is connected to the outlet 801a, the electrical device B is connected to the outlet 801b, and the electrical device C is connected to the outlet 801c, and as shown in FIG. It cannot be distinguished from the state in which the electrical device C is connected to the outlet 801a, the electrical device B is connected to the outlet 801b, and the electrical device A is connected to the outlet 801c.

  Further, in the case of reading the unique information of the electric device from the wireless tag of the plug inserted into each of the outlets 801a to 801c with one tag reader 804, the reading range of the tag reader 804 is indicated by a broken circle in FIG. In addition, it is necessary to set a relatively wide range including all the positions of the outlets 801a to 801c. For this reason, the tag reader 804 may also read the unique information of the electric device from the wireless tag of the plug placed around the tap 800, and the electric device in which the plug is inserted into the outlets 801 a to 801 c and the periphery of the tap 800. Can not be distinguished from electrical equipment with plugs. For example, as shown in FIG. 18A, the plugs of the electric devices A to C are connected to the outlets 801a to 801b, respectively, and as shown in FIG. The state where the plug of the device C is placed around the tap 800 cannot be distinguished.

  Further, in the case of the tap 800 including the three tag readers 804a to 804c illustrated in FIG. 16, each tag reader 804a to 804c does not read the unique information from the wireless tag of the plug inserted into the adjacent outlet. The reading range of each of the tag readers 804a to 804c needs to be a relatively narrow range as indicated by a broken-line circle in FIG. For this reason, when an electrical device is connected to one of the outlets 801a to 801b via a corner tap such as a triangular tap, the position of the plug of the electrical device is out of the reading range of the tag readers 804a to 804c. Device specific information may not be read. For example, as shown in FIG. 19, when the corner tap 820 is inserted into the outlet 801c, and the plug of the electric device A and the plug of the electric device B are inserted into the corner tap 820, the plug of the electric device A The position of the plug of the electric device B is outside the reading range of the tag reader 804c, and the unique information of the electric devices A and B cannot be read by the tag reader 804c. As a result, it cannot be recognized that the electric device A and the electric device B are connected to the outlet 801c.

  FIG. 20 is a diagram illustrating a configuration example of the tap 600 according to the present embodiment. As shown in FIG. 20, the tap 600 of this embodiment includes three outlets 601a, 601b, and 601c, three ammeters 603a, 603b, and 603c, a tag reader (reading unit) 604, a communication unit 605, and a control unit. Unit 610. The control unit 610 includes a CPU. When the CPU executes the program, the control unit 610 realizes the functional configurations of the measurement unit 611, the detection unit 612, and the recognition unit 613.

  The outlets 601a to 601c are connected in parallel to the power plug 602 of the tap 600 of this embodiment. The outlets 601a to 601c are connected to a commercial power source by inserting a power plug 602 into a commercial power outlet (not shown).

  Ammeters 603a to 603c are provided between the power plug 602 and the outlets 601a to 601c, respectively. The ammeters 603a to 603c measure the current flowing from the commercial power source to the respective outlets 601a to 601c, and send the measured values to the control unit 610.

  The tag reader 604 is installed near the center of the tap 600, for example. The tag reader 604 includes the positions of the outlets 601a to 601c in the reading range, and periodically reads the unique information of the electric device at predetermined intervals from the wireless tags of the plugs inserted into the outlets 601a to 601c. The unique information of the electric device read by the tag reader 604 is sent to the control unit 610 and stored in a nonvolatile memory or the like in the control unit 610 together with a time stamp indicating the reading time. The tag reader 604 may be installed so that the positions of the outlets 601a to 601c are included in the reading range, and the installation position is not particularly limited. However, it is desirable that the tag reader 604 is installed so that positions away from the outlets 601a to 601c are not included in the reading range as much as possible.

  The communication unit 605 transmits power information in which the electric device recognized by the control unit 610 is associated with the amount of power supplied to the electric device to the control server device 200. In addition, the communication unit 605 receives a control signal for controlling on / off of a switch (not shown) provided for each of the outlets 601 a to 601 c from the control server device 200.

  The measuring unit 611 measures the amount of power supplied to the electrical equipment connected to each of the outlets 601a to 601c based on the measurement value of the ammeters 603a to 603c provided for each of the outlets 601a to 601c.

  The detection unit 612 detects insertion / removal of the plug of the electric device with respect to the outlets 601a to 601c based on the time change of the power supply amount measured by the measurement unit 611. Specifically, for any of the outlets 601a to 601c, when the power supply amount measured by the measuring unit 611 increases by more than a reference value, the detection unit 612 inserts a new electrical device plug into the outlet at that timing. Judged that it was included. In addition, when any of the outlets 601a to 601c has detected that the power supply amount measured by the measuring unit 611 has decreased more than a reference value, the detection unit 612 has unplugged the electrical device connected to the outlet at that timing. to decide.

  The recognition unit 613 includes the unique information of the electric device read by the tag reader 604 before the detection time, which is the time when the insertion / removal of the plug is detected by the detection unit 612, and the electric device read by the tag reader 604 after the detection time. Based on the difference from the unique information, the electric device corresponding to the inserted / removed plug is recognized.

  Specifically, the recognizing unit 613 refers to the specific information of the electric device read by the tag reader 604 and stored in the nonvolatile memory in the control unit 610 together with the time stamp, and first, immediately before the detection time. It is confirmed whether or not there is a difference between the unique information of the electric device read by the tag reader 604 and the unique information of the electric device read by the tag reader 604 immediately after the detection time. If there is a difference between them, the electric device indicated by the unique information corresponding to the difference is recognized as an electric device corresponding to the inserted / removed plug. That is, when the unique information not included in the unique information of the electric device read by the tag reader 604 immediately before the detection time is included in the unique information of the electric device read by the tag reader 604 immediately after the detection time, The recognition unit 613 recognizes that the electric device indicated by the specific information is an electric device in which a plug is inserted into any of the outlets 601a to 601c. If the unique information included in the unique information of the electric device read by the tag reader 604 immediately before the detection time is not included in the unique information of the electric device read by the tag reader 604 immediately after the detection time, The recognizing unit 613 recognizes that the electric device indicated by the specific information is an electric device in which the plug is removed from any of the outlets 601a to 601c.

  Further, the recognition unit 613 detects the detection time when there is no difference between the unique information of the electric device read by the tag reader 604 immediately before the detection time and the unique information of the electric device read by the tag reader 604 immediately after the detection time. Confirm whether the power supply to the electrical equipment is increasing or decreasing. Then, when the amount of power supplied to the electrical device is increased at the detection time, the recognition unit 613 has a time closest to the detection time among the unique information newly read by the tag reader 604 at a time before the detection time. The electric device indicated by the unique information newly read in is recognized as an electric device in which a plug is inserted into any of the outlets 601a to 601c at the detection time. For example, the recognizing unit 613 sequentially traces the specific information of the electric device read by the tag reader 604 before the detection time as the starting point, and the electric information indicated by the specific information corresponding to the difference detected first. The device is recognized as an electrical device in which a plug is inserted into any of the outlets 601a to 601c at the detection time.

  On the other hand, when the amount of power supplied to the electrical device decreases at the detection time, the recognition unit 613 uses the time closest to the detection time among the unique information that is no longer read by the tag reader 604 at a time later than the detection time. The electric device indicated by the unique information that can no longer be read is recognized as an electric device that has been unplugged from any of the outlets 601a to 601c at the detection time. For example, the recognizing unit 613 starts from the detection time as the starting point and sequentially follows the specific information of the electric device read by the tag reader 604, and the electric device indicated by the specific information corresponding to the difference detected first. Is recognized as an electrical device with the plug removed from any of the outlets 601a to 601c at the detection time.

  Hereinafter, a method for recognizing an electric device in which a plug has been inserted into and removed from the outlets 601a to 601c in the tap 600 of the present embodiment will be described in detail with reference to a specific scene.

<Scene 1>
FIG. 21 is a diagram for explaining the situation of the scene 1. In the scene 1, as shown in FIG. 21 (a), the state where the plug of the electric device A (power load 100W) is inserted into the outlet 601a is defined as an initial state (0 second). Thereafter, in the third second, the plug of the electric device B rolls around the tap 600 as shown in FIG. The plug of the electric device B is not inserted into any of the outlets 601a to 601c, but is located within the reading range of the tag reader 604. Thereafter, at 4.5 seconds, as shown in FIG. 21 (c), the plug of the electric device C (power load 50W) is inserted into the outlet 601c. Thereafter, at 9.5 seconds, as shown in FIG. 21 (d), the plug of the electric device A that has been inserted into the outlet 601a is removed.

  FIG. 22 is a diagram illustrating a temporal change in the amount of power supplied to the electrical devices for each of the outlets 601a to 601c in the scene 1, where the horizontal axis indicates time (seconds) and the vertical axis indicates the power supply amount (W). In the figure, the time change of the power supply amount at the outlet 601a is indicated by a solid line, and the time change of the power supply amount at the outlet 601c is indicated by a broken line. In addition, since an electrical apparatus is not connected to the outlet 601b, the time change of the power supply amount in the outlet 601b is not shown in FIG.

  FIG. 23 is a diagram showing, in time series, the unique information of the electrical equipment that the tag reader 604 periodically reads in the scene 1. Here, it is assumed that the tag reader 604 periodically reads the unique information of the electric device at intervals of 1 second from the wireless tag of the plug existing within the reading range. In FIG. 23, the unique information of the electric device A is represented as A, the unique information of the electric device B is represented as B, and the unique information of the electric device C is represented as C.

  In the scene 1, the outlet 601a supplies 100 W during the period from the 0th to 9.5 seconds, and the outlet 601c supplies 50 W after the 4.5th second. For this reason, as shown in FIG. 22, the power supply amount changes at the outlet 601c at 4.5 seconds, and the power supply amount at the outlet 601a changes at 9.5 seconds. The detection unit 612 detects from this change in the amount of power supply that the plug has been inserted / removed at the outlet 601c in 4.5 seconds and that the plug has been inserted / removed at the outlet 601a in 9.5 seconds. .

  Next, the recognizing unit 613 detects the unique information read by the tag reader 604 in the 4th second immediately before the 4.5th second, which is the detection time when the insertion / removal of the plug is detected, and 5 immediately after the 4.5th second. The unique information read by the tag reader 604 at the second time is compared, and the difference between them is detected. As shown in FIG. 23, when the unique information read at 4 seconds and the unique information read at 5 seconds are compared, unique information C not included in the unique information read at 4 seconds is It can be seen that it is included in the unique information read at 5 seconds. Therefore, the recognition unit 613 has inserted the plug of the electric device C indicated by the specific information C into the outlet 601c at the detection time 4.5 seconds, that is, at the outlet 601c at 4.5 seconds. It can be recognized that the electric device into which the plug is inserted is the electric device C.

  Similarly, the recognizing unit 613 reads the unique information read by the tag reader 604 in the 9th second immediately before the detection time 9.5 second and the tag reader 604 in the 10th second immediately after the 9.5th second. The obtained unique information is compared to detect a difference between them. As shown in FIG. 23, when the unique information read at 9 seconds is compared with the unique information read at 10 seconds, the unique information A included in the unique information read at 9 seconds is It can be seen that it is not included in the unique information read at 10 seconds. Accordingly, the recognizing unit 613 detects that the plug of the electric device A indicated by the specific information A is unplugged from the outlet 601a at the detection time 9.5 seconds, that is, the plug is disconnected from the outlet 601a at 9.5 seconds. It can be recognized that the extracted electrical device is the electrical device A.

<Scene 2>
FIG. 24 is a diagram for explaining the situation of the scene 2. In the scene 2, as shown in FIG. 24A, the corner tap 621 is inserted into the outlet 601a and the plug of the electric device A (power load 100W) is inserted into the corner tap 621 in the initial state. (0 second). Thereafter, at 4.5 seconds, as shown in FIG. 24B, the corner tap 622 into which the plug of the electric device B (electric power load 70W) and the plug of the electric device C (electric power load 50W) are inserted is displayed. It is inserted into the outlet 601c. Thereafter, at 9.5 seconds, as shown in FIG. 24C, the plug of the electric device D (electric power load 40W) is newly inserted into the corner tap 621 inserted into the outlet 601a.

  FIG. 25 is a diagram illustrating a change over time in the amount of power supplied to the electrical devices for each of the outlets 601a to 601c in the scene 2, where the horizontal axis indicates time (seconds) and the vertical axis indicates the power supply amount (W). In the figure, the time change of the power supply amount at the outlet 601a is indicated by a solid line, and the time change of the power supply amount at the outlet 601c is indicated by a broken line. In addition, since an electrical apparatus is not connected to the outlet 601b, the time change of the power supply amount in the outlet 601b is not shown in FIG.

  FIG. 26 is a diagram showing, in time series, the unique information of the electric device that is periodically read by the tag reader 604 in the scene 2. Here, it is assumed that the tag reader 604 periodically reads the unique information of the electric device at intervals of 1 second from the wireless tag of the plug existing within the reading range. In FIG. 26, the unique information of the electrical device A is represented as A, the unique information of the electrical device B is represented as B, the unique information of the electrical device C is represented as C, and the unique information of the electrical device D is represented as D.

  In the scene 2, the outlet 601a supplies 100 W during the period from the 0th to 9.5 seconds, and thereafter supplies 140 W. In addition, the outlet 601c supplies 120 W after 4.5 seconds. For this reason, as shown in FIG. 25, the power supply amount changes at the outlet 601c at 4.5 seconds, and the power supply amount changes at the outlet 601a at 9.5 seconds. The detection unit 612 detects from this change in the amount of power supply that the plug has been inserted / removed at the outlet 601c in 4.5 seconds and that the plug has been inserted / removed at the outlet 601a in 9.5 seconds. .

  Next, the recognizing unit 613 detects the unique information read by the tag reader 604 in the 4th second immediately before the 4.5th second, which is the detection time when the insertion / removal of the plug is detected, and 5 immediately after the 4.5th second. The unique information read by the tag reader 604 at the second time is compared, and the difference between them is detected. As shown in FIG. 26, when the unique information read at the 4th second is compared with the unique information read at the 5th second, the unique information B, C not included in the unique information read at the 4th second Is included in the unique information read at 5 seconds. Therefore, the recognition unit 613 determines that the plug of the electric device B indicated by the specific information B and the plug of the electric device C indicated by the specific information C are (in the corner tap 622) at 4.5 seconds that is the detection time. It can be recognized that the electrical devices inserted into the outlet 601c, that is, the electrical devices whose plugs are inserted into the outlet 601c in 4.5 seconds are the electrical device B and the electrical device C.

  Similarly, the recognizing unit 613 reads the unique information read by the tag reader 604 in the 9th second immediately before the detection time 9.5 second and the tag reader 604 in the 10th second immediately after the 9.5th second. The obtained unique information is compared to detect a difference between them. As shown in FIG. 26, when the unique information read at 9 seconds and the unique information read at 10 seconds are compared, unique information D not included in the unique information read at 9 seconds is It can be seen that it is included in the unique information read at 10 seconds. Therefore, the recognition unit 613 has inserted the plug of the electric device D indicated by the unique information D into the outlet 601a (via the corner tap 621) at the detection time 9.5 seconds, that is, It can be recognized that the electric device in which the plug is inserted into the outlet 601a at 9.5 seconds is the electric device D.

<Scene 3>
FIG. 27 is a diagram for explaining the situation of the scene 3. In the scene 3, as shown in FIG. 27A, the state where the plug of the electric device C (power load 50W) is inserted into the outlet 601c is set as an initial state (0 second). Thereafter, as shown in FIG. 27B, the plug of the electric device A (power load 100W) comes close to the outlet 601a at the third second, but is not inserted into the outlet 601a. This assumes a case where it takes time to insert the plug of the electric device A into the outlet 601a. Thereafter, at 7.5 seconds, as shown in FIG. 27C, the plug of the electric device A is inserted into the outlet 601a.

  FIG. 28 is a diagram illustrating a change over time in the amount of power supplied to the electrical devices for each of the outlets 601a to 601c in the scene 3, where the horizontal axis indicates time (seconds) and the vertical axis indicates the power supply amount (W). In the figure, the time change of the power supply amount at the outlet 601a is indicated by a solid line, and the time change of the power supply amount at the outlet 601c is indicated by a broken line. In addition, since an electrical apparatus is not connected to the outlet 601b, the time change of the power supply amount in the outlet 601b is not shown in FIG.

  FIG. 29 is a diagram showing, in time series, the unique information of the electric device that is periodically read by the tag reader 604 in the scene 3. Here, it is assumed that the tag reader 604 periodically reads the unique information of the electric device at intervals of 1 second from the wireless tag of the plug existing within the reading range. In FIG. 29, the unique information of the electric device A is represented as A, and the unique information of the electric device C is represented as C.

  In the scene 3, the outlet 601c continuously supplies power of 50 W from the 0th second. Moreover, the outlet 601a supplies 100 W after 7.5 seconds. For this reason, as shown in FIG. 28, the power supply amount changes at the outlet 601a at 7.5 seconds. The detection unit 612 detects that the plug has been inserted / removed at the outlet 601a at 7.5 seconds from the change in the power supply amount.

  Next, the recognizing unit 613 recognizes the unique information read by the tag reader 604 on the 7th immediately before the 7.5th second, which is the detection time when the insertion / removal of the plug is detected, and the 8th immediately after the 7.5th second. The unique information read by the tag reader 604 at the second time is compared, and the difference between them is detected. As shown in FIG. 29, when the unique information read at the 7th second is compared with the unique information read at the 8th second, they are common and no difference is detected.

  In this case, the recognizing unit 613 confirms whether the power supply amount of the outlet 601a is increasing or decreasing at the detection time of 7.5 seconds. As shown in FIG. 28, the power supply amount of the outlet 601a increases in 7.5 seconds. Accordingly, the recognizing unit 613 detects the difference by sequentially tracing the unique information read by the tag reader 604 before the 7.5th second, starting from the 7.5th second as the detection time. Here, as shown in FIG. 29, it can be seen that the unique information A included in the unique information read in the third second is not included in the unique information read in the second second. Accordingly, the recognizing unit 613 recognizes that the plug of the electric device A indicated by the specific information A is inserted into the outlet 601a at the detection time 7.5 seconds, that is, the outlet 601a at 7.5 seconds. It can be recognized that the electric device into which the plug is inserted is the electric device A.

<Scene 4>
FIG. 30 is a diagram for explaining the situation of the scene 4. In the scene 4, as shown in FIG. 30A, the plug of the electric device A (power load 100W) is inserted into the outlet 601a, and the plug of the electric device C (power load 50W) is inserted into the outlet 601c. The state that is in the initial state (0 second). Thereafter, at 2.5 seconds, as shown in FIG. 30 (b), the plug of the electric device C is removed from the outlet 601c, but the removed plug continues to exist near the outlet 601c. This assumes a case where it takes time to remove the plug of the electric device C from the outlet 601c. Thereafter, at the eighth second, as shown in FIG. 30C, the plug of the electric device C moves to a position away from the outlet 601c.

  FIG. 31 is a diagram illustrating a change over time in the amount of power supplied to the electrical devices for each of the outlets 601a to 601c in the scene 4, with the horizontal axis indicating time (seconds) and the vertical axis indicating the power supply amount (W). In the figure, the time change of the power supply amount at the outlet 601a is indicated by a solid line, and the time change of the power supply amount at the outlet 601c is indicated by a broken line. In addition, since an electrical apparatus is not connected to the outlet 601b, the time change of the power supply amount in the outlet 601b is not shown in FIG.

  FIG. 32 is a diagram showing, in chronological order, the unique information of the electric device that is periodically read by the tag reader 604 in the scene 4. Here, it is assumed that the tag reader 604 periodically reads the unique information of the electric device at intervals of 1 second from the wireless tag of the plug existing within the reading range. In FIG. 32, the unique information of the electric device A is represented as A, and the unique information of the electric device C is represented as C.

  In the scene 4, the outlet 601a continuously supplies power from 100 seconds. In addition, the outlet 601c supplies 50 W during the period from the second to the second and does not supply power thereafter. For this reason, as shown in FIG. 31, the power supply amount changes at the outlet 601c in 2.5 seconds. The detection unit 612 detects that a plug has been inserted or removed at the outlet 601c in 2.5 seconds from the change in the power supply amount.

  Next, the recognizing unit 613 detects the unique information read by the tag reader 604 in the second second immediately before the 2.5 second, which is the detection time when the insertion / removal of the plug is detected, and 3 immediately after the 2.5 second. The unique information read by the tag reader 604 at the second time is compared, and the difference between them is detected. As shown in FIG. 32, when the unique information read at the second second is compared with the unique information read at the third second, they are common and no difference is detected.

  In this case, the recognition unit 613 confirms whether the power supply amount of the outlet 601a is increasing or decreasing at the detection time of 2.5 seconds. As shown in FIG. 31, the power supply amount of the outlet 601c decreases in 2.5 seconds. Accordingly, the recognizing unit 613 detects the difference by sequentially tracing the unique information read by the tag reader 604 after the 2.5 second from the 2.5 second as the detection time. Here, as shown in FIG. 32, it can be seen that the unique information C included in the unique information read in the seventh second is not included in the unique information read in the eighth second. Therefore, the recognizing unit 613 detects that the plug of the electric device C indicated by the specific information C is removed from the outlet 601c at the detection time 2.5 seconds, that is, the plug from the outlet 601c is 2.5 seconds. It can be recognized that the extracted electrical device is the electrical device C.

  Next, device identification processing by the tap 600 of this embodiment will be described. FIG. 33 is a flowchart illustrating a procedure of device identification processing according to the present embodiment. In addition, the tap 600 according to the present embodiment periodically reads the unique information by the tag reader 604 at regular intervals separately from the device identification processing according to this flowchart, and the read unique information is time stamp indicating the reading time. And remember from time to time. In addition, the tap 600 of the present embodiment measures the amount of power supplied to the electrical device for each of the outlets 601a to 601c separately from the device identification processing according to this flowchart.

  First, the detection unit 612 determines whether or not there is a change in the amount of power supplied from the outlets 601a to 601c to the electrical device (step S101). While there is no change in the amount of power supply (step S101: No), the detection unit 612 repeats the determination in step S101. Then, when there is a change in the power supply amount (step S101: Yes), the detection unit 612 detects that the plug of the electrical device has been inserted into or removed from the outlet with the changed power supply amount among the outlets 601a to 601c. (Step S102).

  Next, the recognizing unit 613 includes one or more pieces of unique information read by the tag reader 604 immediately before the detection time (the time when the power supply amount has changed) when the detection unit 612 detects plug insertion / removal, and the detection time. Immediately after, the one or more pieces of unique information read by the tag reader 604 are compared to determine whether there is a difference between them (step S103). If there is a difference in the specific information immediately before and after the detection time (step S103: Yes), the recognition unit 613 removes the electrical device indicated by the specific information corresponding to the difference to an outlet whose power supply amount has changed. It is recognized that the electric device corresponds to the inserted plug (step S104).

  On the other hand, when there is no difference in the unique information immediately before and after the detection time (step S103: No), the recognition unit 613 determines whether or not the power supply amount is increased at the detection time (step S105). If the power supply amount increases at the detection time (step S105: Yes), the recognition unit 613 sequentially traces one or more pieces of unique information read by the tag reader 604 before the detection time. Then, the difference is confirmed (step S106). The recognizing unit 613 recognizes that the electric device indicated by the unique information corresponding to the difference detected first is an electric device corresponding to the plug inserted into the outlet with the increased power supply amount (step S107). ). In other words, the recognizing unit 613 determines the electric power indicated by the unique information newly read at the time closest to the detection time among the unique information newly read by the tag reader 604 before the detection time. Recognize that the electrical device is newly connected to the increased outlet.

  On the other hand, when the power supply amount is decreasing at the detection time (step S105: No), the recognition unit 613 sequentially traces one or more pieces of unique information read by the tag reader 604 after the detection time. The difference is confirmed (step S108). Then, the recognizing unit 613 recognizes that the electric device indicated by the unique information corresponding to the difference detected first is an electric device corresponding to the plug removed from the outlet with the reduced power supply amount (step S109). That is, the recognizing unit 613 sets the electrical device indicated by the unique information that is no longer read at the time closest to the detection time among the unique information that is no longer read by the tag reader 604 after the detection time. Recognized as an electrical device separated from

  As described above in detail with specific examples, the tap 600 according to the present embodiment determines which outlet of the outlets 601a to 601c has a plug inserted or removed based on a change in the amount of power supplied over time. The recognition unit 613 recognizes the electrical device corresponding to the plug detected and detected by the detection unit 612. For this reason, it is not necessary to provide the tag reader 604 for reading the unique information of the electric device from the plug wireless tag for each of the outlets 601a to 601c. Therefore, according to the tap 600 of the present embodiment, it is possible to appropriately recognize the electrical devices connected to the outlets 601a to 601c without causing an increase in size and cost of the device.

  Further, when there is no difference between the specific information read by the tag reader 604 immediately before and immediately after the detection time when the plug insertion / removal is detected, the recognition unit 613 increases or decreases the power supply amount at the detection time. Make sure that If the power supply amount increases at the detection time, the recognizing unit 613 sequentially traces the unique information read before the detection time, and selects the electrical device corresponding to the plug inserted into the outlets 601a to 601c. recognize. If the power supply amount decreases at the detection time, the recognizing unit 613 sequentially traces the unique information read after the detection time and recognizes the electric device corresponding to the plug removed from the outlets 601a to 601c. Therefore, when a plug that is not inserted into the outlets 601a to 601c is within the reading range of the tag reader 604, the timing at which the unique information read by the tag reader 604 differs, and the plugs are actually removed from the outlets 601a to 601c. Even if the insertion timing is different, it is possible to appropriately recognize the electric device corresponding to the plug inserted and removed from the outlets 601a to 601c.

  Next, the hardware configuration of the positioning server device 100 and the control server device 200 according to the present embodiment will be described with reference to FIG. FIG. 34 is an explanatory diagram illustrating a hardware configuration example of the positioning server device 100 and the control server device 200 according to the present embodiment.

  The positioning server device 100 and the control server device 200 of this embodiment include a control device such as a CPU 51, a storage device such as a ROM (Read Only Memory) 52 and a RAM 53, and a communication I / F 54 that communicates by connecting to a network. A hardware configuration using a normal computer, including an external storage device such as an HDD and a CD drive device, a display device such as a display device, an input device such as a keyboard and a mouse, and a bus 61 for connecting the components. It has become.

  The detection program executed by the positioning server device 100 of the present embodiment and the control program executed by the control server device 200 of the present embodiment are in an installable format or executable format file such as a CD-ROM, a flexible disk ( FD), CD-R, DVD (Digital Versatile Disc) and the like are provided by being recorded on a computer-readable recording medium.

  In addition, the detection program executed by the positioning server device 100 according to the present embodiment and the control program executed by the control server device 200 according to the present embodiment are stored on a computer connected to a network such as the Internet, and are transmitted via the network. You may comprise so that it may provide by downloading. The detection program executed by the positioning server device 100 according to the present embodiment and the control program executed by the control server device 200 according to the present embodiment may be provided or distributed via a network such as the Internet.

  Further, the detection program executed by the positioning server device 100 of the present embodiment and the control program executed by the control server device 200 of the present embodiment may be configured to be incorporated in advance in the ROM 52 or the like.

  The detection program executed by the positioning server device 100 of the present embodiment has a module configuration including the above-described units (communication unit 101, position specifying unit 102, operation status detection unit 103, correction unit 104). As hardware, the CPU 51 (processor) reads out and executes the detection program from the storage medium, whereby the above-described units are loaded on the main storage device, and the above-described units are generated on the main storage device.

  The control program executed by the control server device 200 of this embodiment is a module including the above-described units (communication unit 201, power consumption management unit 202, lighting device control unit 211, outlet control unit 213, air conditioner control unit 215). As actual hardware, the CPU 51 (processor) reads the control program from the storage medium and executes it to load the respective units onto the main storage device, and the respective units are generated on the main storage device. It has come to be.

  The program executed by the control unit 610 of the tap 600 according to the present embodiment is provided by being incorporated in advance in a program ROM or the like in the control unit 610, for example. The program executed by the control unit 610 of the tap 600 according to the present embodiment has a module configuration including the above-described units (the measurement unit 611, the detection unit 612, and the recognition unit 613). When the CPU (processor) in the unit 610 reads the detection program from the program ROM and executes it, the units are loaded onto the main storage device, and the units are generated on the main storage device.

(Modification 1)
From the device control in this embodiment, it can be configured not to perform power control of the display device according to the direction of the person.

(Modification 2)
From the device control in the present embodiment, it can be configured not to perform the power control of the display device according to the direction of the person and the power control of the desktop PC main body or the display device linked to the personal recognition information.

(Modification 3)
In addition to the standing state and the seating state, the device control in the present embodiment is configured to detect a posture correlated with the standing state and the seating state, and perform power control of the display device based on the posture. can do.

(Modification 4)
The tap 600 according to the present embodiment associates the electric device recognized by the recognition unit 613 with the power supply amount and transmits the electric device to the control server device 200 as power information. However, the electrical device recognized by the recognition unit 613 can be used in various forms other than being transmitted to the control server device 200. For example, when a power supply permission list representing a list of electric devices that are permitted to supply power is used, the power supply permission list includes the electric devices recognized by the recognition unit 613 as the electric devices newly connected to the outlets 601a to 601c. Can continue to supply power to the electrical device, and if not included, can be used to stop power supply to the electrical device.

600 taps 601a to 601c outlets 603a to 603c ammeter 604 tag reader 610 control unit 611 measurement unit 612 detection unit 613 recognition unit

Japanese Patent No. 4604936 JP 2006-244818 A

Claims (6)

A plurality of outlets for supplying electric power to the electric equipment through plugs of the electric equipment;
For each of the plurality of outlets, a measuring unit that measures the amount of power supplied to the electrical device
A reading unit for reading the specific information of the electric device from the plug;
A detection unit that detects insertion / removal of the plug with respect to the outlet based on a change in power supply over time,
Based on the difference between the unique information read before the detection time when the insertion / removal of the plug is detected and the unique information read after the detection time, the electrical corresponding to the plug inserted / removed A power supply tap comprising: a recognition unit that recognizes a device.   The recognizing unit inserts and removes the electric device indicated by the unique information corresponding to a difference between the unique information read immediately before the detection time and the unique information read immediately after the detection time. The power feeding tap according to claim 1, wherein the power supply tap is recognized as the electric device corresponding to the plug.   The recognition unit is a case where a difference between the unique information read immediately before the detection time and the unique information read immediately after the detection time is not detected, and the power supply amount increases at the detection time. If it is, among the specific information newly read at a time prior to the detection time, the electrical device indicated by the specific information newly read at a time closest to the detection time, The power feeding tap according to claim 1, wherein the power feeding tap is recognized as the electric device corresponding to the plug inserted into the outlet.   The recognition unit is a case where a difference between the specific information read immediately before the detection time and the specific information read immediately after the detection time is not detected, and the power supply amount decreases at the detection time. The electrical device indicated by the unique information that is no longer read at a time closest to the detection time among the unique information that is no longer read at a time later than the detection time. The power supply tap according to claim 1, wherein the power supply tap is recognized as the electric device corresponding to the plug that has been removed from the power supply. A plurality of outlets for supplying electric power to the electric devices via plugs of the electric devices; a measuring unit for measuring the amount of electric power supplied to the electric devices for each of the plurality of outlets; and reading for reading the unique information of the electric devices from the plugs A device recognition method executed in a power feeding tap comprising:
Detecting the insertion / removal of the plug with respect to the outlet based on the time change of the power supply amount;
Based on the difference between the unique information read before the detection time when the insertion / removal of the plug is detected and the unique information read after the detection time, the electrical corresponding to the plug inserted / removed A device recognizing method, comprising: recognizing the device. A plurality of outlets for supplying electric power to the electric devices via plugs of the electric devices; a measuring unit for measuring the amount of electric power supplied to the electric devices for each of the plurality of outlets; and reading for reading the unique information of the electric devices from the plugs A power supply tap comprising:
A function of detecting insertion / removal of the plug with respect to the outlet based on the change over time of the power supply amount;
Based on the difference between the unique information read before the detection time when the insertion / removal of the plug is detected and the unique information read after the detection time, the electrical corresponding to the plug inserted / removed A program that realizes the function of recognizing devices.

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