JP5987538B2 - Control device, program and control system - Google Patents

Description

  The present invention relates to a control device, a program, and a control system for controlling a noise cancellation device.

  As a technique for realizing energy saving by detecting one or a plurality of people without specifying an individual, it is common to perform on / off control of lighting equipment using a human sensor. On the other hand, as a technique for identifying an individual and detecting the position of the person, a technique using an RFID (Radio Frequency IDentification) tag is generally known. These technologies enable humans to be identified in an indoor area such as a building or office, and can identify individuals. By storing it, control suitable for an individual becomes possible.

  For example, by detecting the position of a person and turning on and off the air conditioning and lighting equipment in the space where the person is located, the energy efficiency is improved and the air direction of the air conditioning is changed to give comfort to the person. The technique to do is known (for example, refer patent document 1). In this technique, human position detection is performed spatially by placing infrared sensors or ultrasonic sensors on walls, ceilings, and the like.

  In addition, a unique ID code is assigned to each room occupant, and a plurality of detection units are arranged on the floor of the room at predetermined intervals to detect the detected object attached to the room occupant. Then, a technique is known in which the position of a room occupant is detected, personal condition data including the ID code and the air conditioning condition associated with the ID code is read, and the air conditioning operation of the air conditioner is performed under conditions suitable for the person. (For example, refer to Patent Document 2).

  Further, a technique for efficiently and comfortably controlling an air conditioner by detecting the position of a person using an RFID tag and predicting the next position from the position data of the past person is also known (for example, (See Patent Document 3).

  For example, when a person works in an office space, concentration is hindered by surrounding conversations and noises unrelated to the person, and the efficiency of the work often decreases. In order to solve this problem, a headphone type noise canceling device or the like is effective, but there is no one that controls the noise canceling device in terms of the state of the person using the noise canceling device and the relationship with the surroundings. Therefore, if a noise cancellation apparatus is used, useful information will also be interrupted and comfort will be impaired.

  The present invention has been made in view of the above, and a main object of the present invention is to provide a control device, a program, and a control system that can realize a comfortable environment without blocking useful information. .

  In order to solve the above-described problems and achieve the object, a control device according to the present invention is a control device that controls a noise cancellation device provided in a control target region, and includes an acceleration sensor and an angular velocity sensor possessed by a human. And a control target specifying unit for specifying the noise canceling device to be controlled based on the position of the person in the control target region detected based on the detection data of each of the geomagnetic sensor and the detection data And a control unit that controls the identified noise cancellation device based on at least one of the position, direction, and posture of the person detected based on the position.

  Further, the program according to the present invention is a computer that controls a noise canceling device provided in a control target area, the control being detected based on detection data of an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor possessed by a human. Based on at least one of the function of identifying the noise cancellation device to be controlled based on the position of the person in the target area, and the position, direction, and posture of the person detected based on the detection data And the function of controlling the specified noise canceling device.

  In addition, a control system according to the present invention includes a positioning device that detects the position, direction, and posture of a person in a control target region, and a noise cancellation device that is connected to the positioning device via a network and is provided in the control target region. A first control unit that receives detection data from each of an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor possessed by the human, and a control system comprising: And a detection unit that detects the position, direction, and posture of the human in the control target region, and a transmission unit that transmits the detected position, direction, and posture of the human to the control device. The control device includes: a second receiver that receives the position, direction, and posture of the person from the positioning device; and the noise to be controlled based on the position of the person. A control target identification unit for identifying the Yanseru device, based on at least one of position and direction and the posture of the human, characterized in that it comprises a control unit for controlling said noise cancellation device identified.

  In addition, a control system according to the present invention includes a positioning device that detects the position, direction, and posture of a person in a control target region, and a noise cancellation device that is connected to the positioning device via a network and is provided in the control target region. A program executed by a controlling computer, wherein the positioning device receives a detection data from each of an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor possessed by the human, and the detection A detection unit that detects the position, direction, and posture of the person in the control target region based on the data; and a transmission unit that transmits the detected position, direction, and posture of the person to the computer. The program has a function of receiving, from the positioning device, the position, direction, and posture of the human, and the human A function for identifying the noise cancellation device to be controlled based on a position and a function for controlling the identified noise cancellation device based on at least one of the position, direction, and posture of the person It is characterized by making it.

  According to the present invention, there is an effect that a comfortable environment can be realized without blocking useful information.

FIG. 1 is a network configuration diagram of the device control system according to the present embodiment. FIG. 2 is a diagram illustrating a wearing state of a smartphone and headphones with a noise canceling function. FIG. 3 is a diagram illustrating an example in which an information device capable of detecting an employee's operation 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 block diagram illustrating a functional configuration of the positioning server device. FIG. 7 is a diagram illustrating waveforms of acceleration components in the vertical direction when the sitting operation and the standing operation are performed. FIG. 8 is a diagram showing a waveform of the angular velocity component in the horizontal direction when the squatting operation and the standing-up operation are performed, respectively. FIG. 9 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. 10 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. 11 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. 12 is a block diagram illustrating a functional configuration of the control server device according to the present embodiment. FIG. 13 is a flowchart illustrating a procedure of detection processing by the positioning server device according to the present embodiment. FIG. 14 is a flowchart showing the procedure of the device control process of the present embodiment. FIG. 15 is a diagram illustrating a result of an experiment performed for confirming the effect of the present embodiment.

  Exemplary embodiments of a control device, a program, and a control system according to the present invention will be described below in detail with reference to the accompanying drawings. In the following, the control device according to the present invention has a noise canceling function used by an employee according to the position of a person (hereinafter referred to as an employee) who performs a specific business activity in a room that is a control target area. An example will be described which is realized as a part of a device control system for controlling headphones. In addition, the form which can be implemented is not restricted to such an apparatus control system.

  FIG. 1 is a network configuration diagram of the device control system according to 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, and devices to be controlled. And a plurality of headphones 500 with a noise canceling function.

  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 and the plurality of headphones 500 with a noise canceling function are connected by a wireless communication network such as Wi-Fi, for example.

  Note that the communication method between the control server device 200 and the plurality of headphones 500 with the noise canceling function is not limited to Wi-Fi, and other wireless communication methods may be used, and Ethernet (registered trademark) may be used. ) A wired communication system such as a cable or PLC (Power Line Communications) can also be used.

  The smartphone 300 is an information device that is carried by the employee and detects the operation of the employee. The headphone 500 with a noise canceling function is a device that an employee wears on the head and blocks external sounds. FIG. 2 is a diagram illustrating a wearing state of the smartphone 300 and the headphones 500 with a noise canceling function. The smartphone 300 may be worn on the employee's 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 an employee's movement. However, if the information apparatus includes an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor, the smartphone 300 can be used. It is not limited to a portable terminal such as 300.

  In addition, the smartphone 300 is provided with information devices that detect an employee's operation such as an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor. May be.

  For example, FIG. 3 is a diagram illustrating an example in which an information device capable of detecting an employee's operation is mounted separately from the smartphone 300. As shown in FIG. 3, a small headset type sensor group 301 including an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor is attached to the head together with a headphone 500 with a noise canceling function, for example, separately from the smartphone 300. can do. 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 employee's head separately from the sensors 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 in the horizontal direction, respectively. It is called an ingredient.

  Returning to FIG. 1, the monitoring camera 400 captures an image of a room that is a control target area, and is installed near the top of the room that is a control target area. 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 control target area, and transmits the captured image (captured video) to the positioning server device 100.

  As shown in FIG. 5, one group is formed by six desks in the room, and three groups are provided. A total of 18 employees, one at each desk, carry out specific business activities, and employees enter and leave the room through two doors. The headphone 500 with a noise canceling function is used by an employee who performs a specific business activity at each of these desks, and is associated with each desk. Such a headphone 500 with a noise canceling function is not limited as long as it has a general active noise canceling function. If the noise canceling function can be switched on / off, the noise canceling is not necessarily performed. A function for adjusting the strength of the function (noise cancellation strength) may not be provided.

  In this embodiment, the layout of the control target area, the devices, the number of users, and the like are limited. However, the present invention can be applied to a wider variety of layouts and devices. Furthermore, the present invention can be widely extended and applied to the arbitraryness in scalability of the space scale and the number of users, and the arbitraryness in the user attribute and the type of business involved when viewed in individual units or group units. Further, the present embodiment is not limited to the indoor space as shown in FIG.

  Each of the plurality of headphones 500 with a noise canceling function is remotely controlled by the control server device 200 via a network.

  For example, the headphone 500 with a noise canceling function is remotely controlled by the control server device 200 to turn on / off the noise canceling function and the noise cancellation strength. Specifically, the headphone 500 with a noise canceling function is provided with an on / off switch of a noise canceling function and a noise canceling intensity adjustment unit that can be individually controlled remotely, and the on / off control and noise canceling are provided. The control of the strength is performed by the control server device 200 by a wireless control method using Wi-Fi.

  In the present embodiment, the headphone 500 with a noise canceling function is a control target. However, in addition to the headphone, the noise canceling function may be used even if the headphone 500 is not directly attached to a device such as an earphone or an ear. Any device may be used as a control target as long as it has the device.

  Returning to FIG. 1, the positioning server device 100 receives the detection data of each sensor, detects the position and operation status of the employee wearing each sensor, and transmits the position and operation status to the control server device 200. .

  FIG. 6 is a block diagram illustrating a functional configuration of the positioning server device 100. As shown in FIG. 6, 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 the acceleration sensor, the angular velocity sensor, and the geomagnetic sensor mounted on the smartphone 300 at regular intervals, or the acceleration sensor, the angular velocity sensor, and the geomagnetic sensor of the sensor group 301 separate from the smartphone 300. 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. Further, the communication unit 101 transmits an operation status such as an absolute position of an employee, which will be described later, and a direction, posture, and the like to the control server device 200.

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

  The operation state detection unit 103 analyzes the received detection data and detects the operation state of the employee. In the present embodiment, the operation state detection unit 103 detects whether the employee is in a stationary state or a walking state as the operation state. In addition, when the operation status is stationary, the operation status detection unit 103 operates based on the detection data to determine whether the employee's direction and the employee's posture with respect to the device in the control target area are standing or sitting. Detect the situation.

  That is, when it is detected from the captured image from the monitoring camera 400 that the employee has entered the room through the door, the operation state detection unit 103 detects the acceleration sensor, the angular velocity sensor, and the like of the smartphone 300 attached to the employee who has entered the room. 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 geomagnetic sensor or the smartphone 300, the employee's It is sequentially determined whether the operation state is a walking state or a stationary state. Here, the method of determining whether the employee's motion state is the walking state using the acceleration vector and the angular velocity vector can be realized by, for example, processing by a 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 can determine that the person is in a stationary state.

  More specifically, the operation state detection unit 103 can detect 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. And when it is more than a predetermined value, it determines with an operating condition of an employee being 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 movement status detection unit 103 indicates that the movement status of the employee is stationary. It is determined that it is in a state.

  When it is determined that the employee is in a stationary state, the position specifying unit 102 uses the acceleration vector, the angular velocity vector, and the magnetic orientation vector as a reference position, and determines that the employee is in a stationary state from the reference position. A relative movement vector to the determined position is obtained. Here, as a calculation method of the relative movement vector using the acceleration vector, the angular velocity vector, and the magnetic azimuth vector, for example, a method disclosed in the processing of the dead reckoning device disclosed in Japanese Patent Application Laid-Open No. 2011-47950 can be used.

  More specifically, the position specifying unit 102 can obtain the relative movement vector as follows, similarly to the processing of the dead reckoning device disclosed in Japanese Patent Application Laid-Open No. 2011-47950.

  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. In other words, the position of the person in charge 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 determines the absolute position after the movement of the employee from the relative movement vector from the door and the indoor map data stored in the storage unit 110. Identify.

  Thereby, the position specifying unit 102 can specify up to which desk the employee is placed in the room, and as a result, the shoulder width of the person, for example, approximately 60 cm or less (more specifically, approximately The position of the employee can be specified with an accuracy of about 40 cm or less.

  The higher the positional 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. Therefore, when considering accuracy, in this embodiment, the accuracy corresponding to the length from the waist to the knee is used as the accuracy appropriate for the accuracy equivalent to the human shoulder width or stride, whether standing or sitting.

  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 human moves is 95 steps when walking 50 m, and is about 53 cm (50 ÷ 95 × 10) from now on, and the position detection method according to the present embodiment can have an accuracy equivalent to the stride. . Therefore, from the above data, the present embodiment is configured assuming that an accuracy of 60 cm or less, preferably 40 cm or less is appropriate. These data serve as a standard for considering accuracy, but are based on the Japanese and are not limited to these values.

  In addition, when the employee's absolute position is specified and the employee is stationary at the seat in front of the desk, the operation status detection unit 103 determines the employee's position based on the orientation of the magnetic orientation vector received from the geomagnetic sensor. A direction (orientation) with respect to the display device is determined. In addition, when the employee is stationary at the seat in front of the desk, the operation state detection unit 103 determines the posture of the employee, that is, whether the employee is standing or sitting from the vertical acceleration component of the acceleration vector. To do.

  Here, as in the dead reckoning device disclosed in, for example, Japanese Patent No. 4243684, the determination as to the standing state or the sitting state is based on the acceleration vector received from the acceleration sensor and the angular velocity vector received from the angular velocity sensor. Thus, the acceleration component in the vertical direction can be obtained. And the operation condition detection part 103 can obtain | require the peak of the peak and trough of the acceleration component of a perpendicular direction similarly to the dead reckoning apparatus currently disclosed by patent 4243684, for example.

  FIG. 7 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. 7, 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 employee is in a sitting state or a standing state based on the peak interval. 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 operation state detection unit 103 is in the seated state. Is determined. Further, when the interval from the peak of the vertical acceleration component peak to the peak of the mountain is within a predetermined range from 0.5 seconds, the operation state detection unit 103 is in an upright state. Is determined.

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

  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 posture and movement of the employee as described below.

  FIG. 8 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. From the acceleration data from the acceleration sensor, waveforms similar to the sitting motion and the standing motion shown in FIG. 7 are detected, but it is difficult to discriminate the squatting motion and the standing motion only from the acceleration data.

  For this reason, the operation state detection unit 103, together with the above-described method for discriminating between the sitting motion and the standing motion based on the waveform of FIG. 7, changes the temporal change in the angular velocity data in the horizontal direction received from the angular velocity sensor into 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 shown in FIG. 8, the angular velocity component of the curve 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 employee's 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 employee's movement is a standing movement.

  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. 9 is a diagram illustrating a waveform of the angular velocity component in the vertical direction when the employee 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 a peak after 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.

  In addition, the operation state detection unit 103 gradually returns to 0 after the time-dependent change of 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 operation state detection unit 103 is similar to the waveform of FIG. 9 in the above-described determination in terms of the vertical angular velocity components of the angular velocity vectors 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 indicates 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. If 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. 9, it is determined that the operation is to change the direction of the head only to the right or left. As such an operation, for example, a posture operation in the case of communicating with an adjacent employee while the employee is sitting can be considered.

  FIG. 10 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 specifies the absolute position of the employee as being in front of the desk, and the operation state detecting unit 103 detects that the employee in front of the desk is in a sitting state. In such a case, the motion state detection unit 103 gradually increases the angular velocity component in the horizontal direction of the angular velocity vector received from the angular velocity sensor of the employee's head from 0 as shown in the waveform of FIG. When the peak of the valley is reached and then suddenly returns to 0 and the time between them is about 1 second, it is determined that the operation is an operation in which the eyes are removed from the display in the sitting state (upward operation). 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. 10, 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. 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 seated state.

  Consider a case where the position specifying unit 102 specifies the absolute position of the employee as being in front of the desk, and the operation state detecting unit 103 detects that the employee in front of the desk is in a sitting state. In such a case, the operation 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 employee's head to suddenly increase from 0 as shown in the waveform of FIG. When it reaches the peak of the mountain and then suddenly returns to 0 and the time between them is about 0.5 seconds, it is determined that the movement is looking down from the display while sitting down. To do.

  Further, the operation state detecting 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. 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 employee can take on a daily basis, that is, walking (standing state), standing (stationary state), sitting on a chair, squatting at 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, for example, Japanese Patent Application Laid-Open No. 2009-14713, and displays the vertical acceleration component in a place without an elevator. When the waveform shown in FIG. 7 is detected, it is possible to determine with high accuracy whether the operation 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 employee determined as described above are correct by image analysis of the captured image of the monitoring camera 400 or the like, It is determined whether or not the data is correct using the data and the function of the map matching device disclosed in, for example, 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 function of the map matching device.

  Note that the correction unit 104 is configured to perform correction using not only a captured image from the monitoring camera 400 but also a limited means such as short-range wireless or optical communication such as RFID or Bluetooth (registered trademark). Also good.

  In the present embodiment, the same technique as the dead reckoning device disclosed in Japanese Patent No. 4243684 and Japanese Patent Application Laid-Open No. 2011-47950, and the same as the map matching device disclosed in Japanese Patent Application Laid-Open No. 2009-14713 The technology detects the motion state of the employee, the relative movement vector from the reference position, and the posture (whether standing or seated), but the detection method is not limited to these technologies.

  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 area to be managed. 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 the present embodiment, the captured image of the monitoring camera 400 is used only when the absolute position, direction, and posture of the employee are corrected.

  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 techniques, the method performed by the positioning server device 100 according to the present embodiment is capable of individual identification, provides high positioning accuracy equivalent to a human shoulder width or stride, and, in addition, only by the human position. Without being able to detect human operating conditions. 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), standing up as a human operating state. Detect (shut down), sit in a chair, squat when working, change direction (direction) in sitting or standing state, look up to the sky in sitting or standing state, whisper in sitting or standing state, etc. Can do.

  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 in the office that is the control target area. The absolute position of the employee and the operation status of the employee are detected. However, the method for detecting the position of the employee in the room, which is the control target area, is not limited to the above-described method performed by the positioning server 100. For example, one or more combinations of the above-described other methods The position of the employee may be detected by the above-described method, and the position of the employee may be detected by combining one or more of the other methods described above with the method described above performed by the positioning server device 100. May be.

  Next, details of the control server device 200 will be described. Based on the position, direction, and posture of the employee in the room that is the control target area, the control server device 200 remotely controls the headphones 500 with a noise cancellation function used by the employee in the room via a network.

  FIG. 12 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 according to the present embodiment mainly includes a communication unit 201, a job information management unit 202, a control target specifying unit 203, a device control unit 204, and a storage unit 220. I have.

  The storage unit 220 is a storage medium such as an HDD or a memory, and includes position data indicating the position of a desk in the room, which is a control target area, and a job function indicating a job relationship between employees who perform business activities in the room. Various information necessary for processing of the control server device 200 such as information is stored.

  The communication unit 201 receives the absolute position and motion information (direction, posture) of the employee from the positioning server device 100. In addition, the communication unit 201 turns on the noise canceling function for the headphone 500 with the noise canceling function to be controlled that is specified by the control target specifying unit 203 among the plurality of headphones 500 with the noise canceling function. Control signal and a control signal for setting the noise cancellation intensity are transmitted. In the present embodiment, the positioning server device 100 detects the position, direction, and posture of the employee in the room that is the control target area. However, the function of detecting the position, direction, and posture of the employee is provided. The control server device 200 may be provided. In addition, the headphone 500 with a noise canceling function can be provided with a function of detecting the position, direction, and posture of the employee.

  The job information management unit 202 monitors the positional relationship between employees who have a job relationship based on the received employee position and the like and the job information stored in the storage unit 220. Specifically, the job information management unit 202, for example, with respect to an employee who uses the controlled headphones 500 with the noise canceling function specified by the control target specifying unit 203, It is judged whether the person is approaching.

  The control target specifying unit 203 specifies the headphone 500 with a noise canceling function to be controlled based on the received employee position. Specifically, the control target specifying unit 203 refers to the position data stored in the storage unit 220 and is used at the desk if the employee's position is near the position where the desk in the room is placed. The headphone 500 with a noise canceling function is specified as a control target. For example, the headphone 500 with the noise canceling function to be controlled can be identified from the position of the employee by associating the information of the corresponding headphone 500 with the noise canceling function with the position of each desk in the room. it can.

  The device control unit 204 controls the headphone 500 with a noise canceling function specified as a control target by the control target specifying unit 203 based on at least one of the received position, direction, and posture of the employee. Specifically, the device control unit 204 first transmits a control signal for turning on the noise canceling function to the headphones 500 with the noise canceling function to be controlled via the communication unit 201. At this time, if the noise canceling function is turned on among the headphones 500 with the noise canceling function that is not specified as the control target by the control target, A control signal for turning off the noise canceling function may be transmitted together.

  Next, the device control unit 204 controls the noise cancellation intensity of the headphone 500 with a noise canceling function to be controlled based on at least one of the received employee direction and posture. For example, when the received employee's orientation is the direction (front) facing the desk and the received employee's posture is seated, the device control unit 204 is a headphone with a noise canceling function to be controlled. A control signal for setting the noise cancellation strength higher than the threshold is transmitted to 500 via the communication unit 201. On the other hand, when the direction of the received employee is not the direction (front) facing the desk, or when the received employee's posture is standing, the device control unit 204 controls the noise canceling function to be controlled. A control signal for setting the noise cancellation strength to be lower than the threshold value is transmitted to the attached headphones 500 via the communication unit 201.

  As a result, it is possible to provide a comfortable working environment that does not bother the surrounding conversations and various sounds for employees who are facing the desk in a sitting state and can improve the work efficiency. At the same time, for employees who are not facing the desk or standing workers, such as workers who are supposed to be interrupted, useful information can be obtained without completely blocking the surrounding sounds. The resulting environment can be provided. In the above example, the noise cancellation strength of the headphones 500 with the noise canceling function is controlled based on both the orientation and posture of the employee, but the noise cancellation strength is controlled based on either one. May be. For example, the noise cancellation strength may be set high if the orientation of the employee is directly facing the desk, and the noise cancellation strength may be set low if the orientation is not facing the desk. Further, the noise cancellation strength may be set high when the operator is in the sitting state, and the noise cancellation strength may be set low when the worker is standing.

  In addition, the device control unit 204 controls not only the employee who uses the headphone 500 with the noise canceling function to be controlled but also the noise canceling target of the control based on the position of other employees in the room that is the control target area. It is also possible to control the noise cancellation intensity of the headphones 500 with a ring function. For example, the device control unit 204 uses the headphone 500 with the noise canceling function to be controlled based on the position of the employee who uses the headphone 500 with the noise canceling function to be controlled, the position of another employee, and the like. When the job information management unit 202 determines that another employee who is related to the job is approaching the employee who performs the job, the noise cancellation strength is reduced with respect to the headphones 500 with the noise canceling function to be controlled. A control signal for lowering is transmitted via the communication unit 201.

  As a result, an employee who uses the headphone 500 with the noise canceling function to be controlled is provided with an environment in which it is possible to concentrate on work as long as other employees who are related to the job are not approaching. It is possible to provide an environment in which an external sound can be heard when another employee approaches, for example, to be able to react immediately when spoken to another employee. In the above example, the noise cancellation strength is determined when it is determined that another employee who is related to the job is approaching the employee who uses the headphones 500 with the noise canceling function to be controlled. Even if it is judged that other employees are approaching regardless of whether or not they are employees who are related to their duties, the noise cancellation intensity can be controlled to be reduced. Good. In the above example, when it is determined that another employee is approaching, the noise cancellation strength is controlled to be reduced, but when it is determined that another employee is approaching. Alternatively, the noise canceling function may be controlled to be turned off.

  Next, the detection process by the positioning server device 100 of the present embodiment configured as described above will be described. FIG. 13 is a flowchart showing a procedure of detection processing 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, whether or not the employee has entered the room that is the control target area is determined based on, for example, a captured image of a door that opens and closes (step S11). When entering the room (step S11: Yes), the operation state detection unit 103 detects the operation state of the employee who has entered the room by the above-described method (step S12). Then, the operation state detection unit 103 determines whether or not the employee's operation state is the walking state (step S13), and repeatedly detects the operation state while the worker is in the walking state (step S13: Yes). .

  On the other hand, when the employee's operation state is not the walking state in step S13 (step S13: No), the operation state detection unit 103 determines that the employee's operation 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).

  And the position specific | specification part 102 specifies the absolute position of the employee who became the stationary state with the map data of the room preserve | saved at the memory | storage part 110, and the relative movement vector from a door (step S15). Thereby, the position specifying unit 102 can specify up to which desk the employee is placed in the room, and as a result, the shoulder width of the employee (approximately 60 cm or less, more specifically approximately 40 cm). The position of the employee is specified with the accuracy of the following.

  Next, the operation state detection unit 103 further detects the direction (orientation) of the employee with respect to the display device from the magnetic orientation vector received from the geomagnetic sensor as the operation state of the stationary employee (step S16).

  Next, the operation state detection unit 103 detects the posture, whether the sitting state or the standing state, as the operation state of the employee by the above-described method (step S17). Thereby, the operation state detection unit 103 has detected the position in the height direction of the employee with an accuracy of approximately 50 cm or less (more specifically, approximately 40 cm or less).

  Further, the operation status detection unit 103 is an operation status of the employee, whether it 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. Either an operation of lowering the line of sight or an operation of returning the line of sight in the sitting state 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).

  Next, device control processing by the control server device 200 will be described. FIG. 14 is a flowchart showing the procedure of the device control process of the present embodiment.

  First, the communication unit 201 receives the absolute position, direction, and posture of the employee as detection result data from the positioning server device 100 (step S31). Next, the control target specifying unit 203 specifies the headphone 500 with a noise canceling function to be controlled from the absolute position of the received detection result data (step S32).

  More specifically, for example, the control target specifying unit 203 refers to the position data stored in the storage unit 220 and sets the headphone 500 with a noise canceling function associated with the desk corresponding to the absolute position as the control target. Identify.

  Next, the device control unit 204 performs control to turn on the noise canceling function of the identified headphones 500 with the noise canceling function (step S33).

  Next, the device control unit 204 determines whether or not the direction of the received detection result data is forward and the posture of the detection result data is a seated state (step S34). When the direction is the front and the posture is the seating state (step S34: Yes), the device control unit 204 determines the noise cancellation strength of the headphone 500 with the noise canceling function specified in step S32 from the threshold value. Is set to a higher value (step S35).

  On the other hand, when the direction is backward or the posture is standing in step S34 (step S34: No), the device control unit 204 of the headphone 500 with the noise canceling function specified in step S32. Control to set the noise cancellation intensity lower than the threshold is performed (step S36).

  Next, on the basis of the received detection result data, the job information management unit 202 determines whether another employee who is related to the job is assigned to the employee who uses the headphone 500 with the noise canceling function specified in step S32. It is determined whether or not it is approaching (step S37). If it is determined that another employee who is related to the job is approaching (step S37: Yes), the device control unit 204 performs noise cancellation of the headphones 500 with the noise canceling function specified in step S32. Control to lower the intensity is performed (step S38).

  On the other hand, if it is determined in step S37 that other employees who are related to the job are not approaching (step S37: No), the processing is performed while maintaining the noise cancellation strength set in step S35 or step S36. Exit.

  Note that the device control unit 204 may be configured to perform control other than the above-described control on each headphone 500 with a noise canceling function to be controlled.

  In addition to the position, orientation, and posture of the employee, whether the employee's movement is squatting or standing, changing the orientation in the sitting state, or returning it, or raising the line of sight in the sitting state (looking up) ) Or the operation to return the line of sight, the operation to lower the line of sight in the sitting state (the operation to look down), or the operation to return the line of sight, so that the device control unit controls the respective headphones 500 with the noise canceling function to be controlled. 204 may be configured.

  As described above, in the present embodiment, the position of the employee is specified with the accuracy of the shoulder width, the direction and posture of the employee are detected, and the headphones 500 with the noise canceling function are controlled. The headphone 500 with a noise canceling function can be controlled with high accuracy, and a comfortable environment can be realized without blocking useful information. In other words, according to the present embodiment, a comfortable working environment in which surrounding conversations and various sounds are not worrisome is provided to employees who are working while facing the desk in a sitting state. In addition to improving efficiency, it is possible to completely block out surrounding sounds for employees who are assumed to be interrupting work, such as workers who are not facing the desk or standing workers. It is possible to provide an environment in which useful information can be obtained without doing so. In addition, for employees who use the headphones 500 with the noise canceling function to be controlled, an environment where they can concentrate on work is provided while other employees who are related to their duties are not approaching, while they are related to their duties. It is possible to provide an environment in which external sounds can be heard when other employees approach, for example, to be able to react immediately when spoken to other employees.

  The positioning server device 100 and the control server device 200 according to the present embodiment include a control device such as a CPU, a storage device such as a ROM and a RAM, an external storage device such as an HDD and a CD drive device, and a display device such as a display device. And an input device such as a keyboard and a mouse, and has a hardware configuration using a normal computer.

  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 files in an installable format or an executable format and are CD-ROM, flexible The program is recorded on a computer-readable recording medium such as a disc (FD), a CD-R, or a DVD (Digital Versatile Disc).

  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 are stored on a computer connected to a network such as the Internet, and the network You may comprise so that it may provide by making it download via. 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 provided or distributed via a network such as the Internet. Good.

  Further, 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 by being incorporated in advance in a ROM or the like. .

  The detection program executed by the positioning server device 100 according to 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 the hardware, a CPU (processor) reads the detection program from the storage medium and executes it to load the above-described units onto the main storage device. The communication unit 101, the position specifying unit 102, the operation status detection unit 103, and the correction The unit 104 is generated on the main storage device.

  The control program executed by the control server device 200 according to the present embodiment has a module configuration including the above-described units (communication unit 201, job information management unit 202, control target specifying unit 203, and device control unit 204, As actual hardware, a CPU (processor) reads out and executes a control program from the storage medium, whereby the above-described units are loaded onto the main storage device, and the communication unit 201, job information management unit 202, and control target specifying unit 203. The device control unit 204 is generated on the main storage device.

  In order to confirm the effect of this embodiment, the following experiment was conducted. That is, when the headphone 500 with the noise canceling function is controlled by the device control system having the above-described configuration, the headphone 500 with the noise canceling function is used, but the control by the device control system having the above-described configuration is not performed. The comparative example 1 and the case where the headphone 500 with the noise canceling function is not used are set as the comparative example 2, and the comfort felt by the subject in each of the example, the comparative example 1 and the comparative example 2 was confirmed.

(Conditions for experiment)
About each of an Example, the comparative example 1, and the comparative example 2, it asked the test subject to implement normal business for five consecutive days (Monday to Friday), and the survey by the questionnaire was performed with respect to the test subject. Questionnaire items include (1) whether you were able to concentrate on your work, or (2) whether you were able to obtain the sound information necessary for your work (for example, you noticed immediately after being spoken). ”,“ No ”, and“ Neither ”can be selected from three answers. In Example and Comparative Example 1, the subject was instructed to always wear the headphone 500 with a noise canceling function when working at his / her desk.

  The experimental results are shown in FIG. As can be seen from the experimental results shown in FIG. 15, in the case of the comparative example 1, it is possible to concentrate on the work, but the sound information necessary for the work cannot be obtained, and in the case of the comparative example 2, the sound necessary for the work is obtained. In contrast to being able to obtain information but not being able to concentrate on the work, in the embodiment, sound information necessary for the work can be obtained while concentrating on the work. As described above, according to the present embodiment, an unprecedented remarkable effect that a comfortable environment can be realized without blocking useful information is obtained.

  Although specific embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments as they are, and various modifications and changes can be made without departing from the scope of the invention in the implementation stage. In addition, it can be embodied. That is, the specific configuration and operation of the above-described embodiment are merely examples, and various modifications and changes can be made according to the application and purpose.

DESCRIPTION OF SYMBOLS 100 Positioning server apparatus 101 Communication part 102 Position specific | specification part 103 Operation | movement condition detection part 104 Correction | amendment part 110 Memory | storage part 200 Control server apparatus 201 Communication part 202 Duty information management part 203 Control object specific | specification part 204 Device control part 220 Storage part 300 Smartphone 400 Monitoring Camera 500 Headphone with noise canceling function

Japanese Patent No. 4640286 Japanese Patent No. 4044472 JP 2009-250589 A

Claims (7)

A control device for controlling a noise cancellation device provided in a control target area,
Control for identifying the noise canceling device to be controlled based on the position of the human in the control target area detected based on the detection data of the acceleration sensor, angular velocity sensor, and geomagnetic sensor possessed by the human The target identification part;
And a control unit that controls the identified noise cancellation device based on at least one of the position, direction, and posture of the person detected based on the detection data.   The control unit controls a noise cancellation intensity of the specified noise canceling device based on at least one of a direction and a posture of the person using the specified noise canceling device. The control device described in 1.   The control unit determines whether the human using the specified noise canceling apparatus is different from the human position using the specified noise canceling apparatus and the other human position. 2. The control device according to claim 1, wherein, when it is determined that the person is approaching, the specified noise cancellation device is turned off or a noise cancellation strength is reduced. A job information management unit that manages job information is further provided.
The control unit is specified when the other approaching person is determined to be related to the person who uses the specified noise canceling device based on the job information. 4. The control device according to claim 3, wherein the noise cancellation device is turned off or the noise cancellation strength is reduced. In the computer that controls the noise cancellation device provided in the control target area,
A function of specifying the noise canceling device to be controlled based on the position of the human in the control target area detected based on detection data of an acceleration sensor, an angular velocity sensor, and a geomagnetic sensor possessed by a human. When,
A program for realizing a function of controlling the specified noise cancellation device based on at least one of the position, direction, and posture of the person detected based on the detection data. A control system comprising: a positioning device that detects the position, direction, and posture of a human in a control target region; and a control device that is connected to the positioning device via a network and controls a noise cancellation device provided in the control target region. Because
The positioning device is
A first receiver for receiving detection data from each of an acceleration sensor, an angular velocity sensor and a geomagnetic sensor possessed by the human;
A detection unit that detects the position, direction, and posture of the person in the control target region based on the detection data;
A transmission unit that transmits the detected position, direction, and posture of the human to the control device;
The control device includes:
A second receiver for receiving the position, direction, and posture of the person from the positioning device;
A control target specifying unit that specifies the noise cancellation device to be controlled based on the position of the person;
A control unit that controls the identified noise canceling device based on at least one of the position, direction, and posture of the person. A positioning device that detects the position, direction, and posture of a human in a control target region; a program that is connected to the positioning device via a network and that is executed by a computer that controls a noise cancellation device provided in the control target region; A control system comprising:
The positioning device is
A receiving unit that receives detection data from each of the acceleration sensor, the angular velocity sensor, and the geomagnetic sensor possessed by the human;
A detection unit that detects the position, direction, and posture of the person in the control target region based on the detection data;
A transmission unit that transmits the detected position, direction, and posture of the human to the computer,
The program is stored in the computer.
A function of receiving the position, direction and posture of the person from the positioning device;
A function for identifying the noise cancellation device to be controlled based on the position of the person;
A control system that realizes a function of controlling the identified noise cancellation device based on at least one of the position, direction, and posture of the human.

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