JP2012182655A - Power consumption reduction apparatus, power consumption reduction system, power consumption reduction method, and power consumption reduction program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power consumption reduction apparatus, a power consumption reduction method, and a power consumption reduction program which are capable of efficiently reducing power consumption of facility equipment.SOLUTION: The power consumption reduction apparatus according to the present invention comprises: traffic line detection means 1 for detecting traffic line information indicating a traffic line of a person from images obtained by photographing a predetermined location by photographing means; and facility equipment control means 2 for controlling facility equipment on the basis of the traffic line information detected by the traffic line detection means 1.

Description

  The present invention relates to a power consumption reduction device, a power consumption reduction system, a power consumption reduction method, and a power consumption reduction program that reduce power consumption of equipment.

  In recent years, the necessity of CO2 reduction is regarded as important, and power consumption such as air conditioning equipment and lighting is regarded as a problem in offices in buildings and the like. In general, office lighting is often controlled by manual control or simultaneous turn-off. For this reason, even if the area where the office is located is unattended, the lighting of the entire office is turned on until the next simultaneous turn-off timing, and there is a tendency that power is wasted.

  As a countermeasure, a human sensor that detects the presence or absence of a person in a specific area of a company or an individual may be used. For example, when a person is detected by a human sensor, there is an example in which facility control such as turning on the illumination of the area is performed. As a related technique, for example, Patent Literature 1 describes an equipment control device that reduces power consumption of equipment.

JP 2010-183322 A

  However, in order to detect people uniformly using human sensors, it is necessary to reduce the distance between human sensors and to install a large number of human sensors in a specific area, which increases the cost. .

  In addition, since only the presence / absence of a person can be detected, the illumination is controlled to turn on when a person is detected, and to be turned off when no person is detected thereafter, and is finely controlled each time the person moves. For this reason, there is a problem that power consumption cannot be reduced.

  In the method described in Patent Literature 1, when a user's entry is confirmed without using a human sensor, the facility is selected and controlled based on the facility information stored in advance or the user's personal information. . However, since this method predicts the path where the user walks and controls the equipment associated with the predicted path for the purpose of ensuring the safety of pedestrians, etc., the power consumption of the facility can be efficiently reduced. It is not a reduction.

  Accordingly, an object of the present invention is to provide a power consumption reduction device, a power consumption reduction system, a power consumption reduction method, and a power consumption reduction program that can efficiently reduce the power consumption of facility facilities.

  A power consumption reduction device according to the present invention is based on flow line detection means for detecting flow line information indicating a flow line of a person from an image obtained by photographing an image of a predetermined place, and flow line information detected by the flow line detection means. And facility facility control means for controlling the facility facility.

  A power consumption reduction system according to the present invention includes a photographing unit, a power consumption reduction device, and a facility equipment control device, and the power consumption reduction device shows a flow line of a person from an image obtained by photographing a predetermined place by the photographing unit. The facility equipment control device includes a facility equipment control means for controlling the facility equipment based on the traffic line information detected by the traffic line detection means.

  The power consumption reduction method according to the present invention is characterized in that a photographing unit detects flow line information indicating a flow line of a person from an image obtained by photographing a predetermined place, and controls facility equipment based on the detected flow line information. And

  The power consumption reduction program according to the present invention is based on the detected flow line information and the flow line detection process for detecting flow line information indicating the flow line of the person from the image captured by the image capturing means on the computer. A facility equipment control process for controlling the facility equipment is executed.

  ADVANTAGE OF THE INVENTION According to this invention, the power consumption of a facility installation can be reduced efficiently.

It is a block diagram which shows an example of a structure of the power consumption reduction system by this invention. It is a sequence diagram which shows the process example which a power consumption reduction system performs. It is explanatory drawing which shows an example of area setting. It is a flowchart which shows an example of the process which a control rule preparation means performs. It is a flowchart which shows an example of the process which a control rule preparation means performs. It is a block diagram which shows the minimum structural example of a power consumption reduction apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of the configuration of a power consumption reduction system according to the present invention. As illustrated in FIG. 1, the power consumption reduction system includes an imaging device 100, an information processing device 200, and a facility control device 300. The photographing apparatus 100 and the information processing apparatus 200 are connected to each other via a communication network such as a LAN or the Internet. Further, the information processing apparatus 200 and the facility control apparatus 300 are connected to each other via a communication network such as a LAN or the Internet. In the present embodiment, the information processing apparatus 200 and the facility control apparatus 300 are described as separate apparatuses, but may be realized by the same apparatus.

  Specifically, the photographing apparatus 100 is realized by a camera. As shown in FIG. 1, the imaging device 100 includes an imaging unit 110 and a transmission unit 120.

  The photographing unit 110 has a function of photographing a predetermined place. The transmission unit 120 has a function of transmitting an image (for example, a moving image or a still image) taken by the photographing unit 110 to a predetermined place.

  Specifically, the information processing apparatus 200 is realized by a personal computer, a server apparatus, or the like that operates according to a program. As shown in FIG. 1, the information processing apparatus 200 includes a communication unit 210, a management unit 220, a position detection unit 230, a person number detection unit 240, a residence time detection unit 250, and a control rule creation unit 260. Including.

  Specifically, the communication unit 210 is realized by a network interface unit of an information processing apparatus that operates according to a program. The communication unit 210 has a function of controlling communication with external units and each unit of the information processing apparatus 200.

  Specifically, the management unit 220 is realized by a CPU of an information processing apparatus that operates according to a program. The management unit 220 has a function of managing each unit of the information processing apparatus 200.

  Specifically, the position detection unit 230 is realized by a CPU of an information processing apparatus that operates according to a program. The position detecting unit 230 has a function of detecting the position of a person included in the image and outputting position information indicating the detected position to the control rule creating unit 260.

  Specifically, the number of persons detecting means 240 is realized by a CPU of an information processing apparatus that operates according to a program. The number detection unit 240 has a function of detecting the number of persons included in the image and outputting number information indicating the detected number of persons to the control rule creation unit 260.

  Specifically, the residence time detection means 250 is realized by a CPU of an information processing apparatus that operates according to a program. The residence time detection unit 250 has a function of detecting a flow line of a person included in the image and outputting flow line information indicating the detected flow line to the control rule creation unit 260. In the present embodiment, the flow line means a trajectory in which a person has moved.

  The residence time detection means 250 has a function of detecting the time during which a person included in the image stays in a predetermined area and outputting residence time information indicating the detected time to the control rule creation means 260. Yes. For example, the residence time detection means 250 detects the time during which a person stays in a predetermined area based on the detected flow line information.

  Note that a process of detecting a moving object from an image captured by a monitoring camera (in this embodiment, the image capturing unit 110), identifying whether the moving object is a person, and tracking using the moving speed and characteristics of the person. Is realized by applying “Image analysis technology for grasping human behavior” described in Reference 1 (Image analysis technology for grasping human behavior and application examples NEC Technical Report Vol.63 No.3 / 2010). can do. In the present embodiment, using this image analysis technique, the position detection unit 230 executes a position detection process for acquiring a position where a person is present using coordinate axes. In addition, the number detection unit 240 uses this image analysis technique to execute a number detection process for detecting the number of people by detecting the head of a person. Also, the residence time detection means 250 uses this image analysis technique to follow a trajectory that moves within a certain area from the flow line of a person and detects the residence time within a certain area. Execute the process.

  Specifically, the control rule creating means 260 is realized by a CPU of an information processing apparatus that operates according to a program. The control rule creating means 260 has a function of generating facility control data for controlling the air conditioning equipment and the lighting equipment based on the position information and the number of people information dwell time information.

  The facility control device 300 is specifically realized by a personal computer, a server device, or the like that operates according to a program. As shown in FIG. 1, the facility control apparatus 300 includes a communication unit 310 that is a function for performing communication with external and internal functions, an air conditioning control unit 320, and a lighting control unit 330.

  Specifically, the communication unit 310 is realized by a network interface unit of an information processing apparatus that operates according to a program. The communication unit 310 has a function of controlling communication with each unit of the external and facility control device 300.

  The air conditioning control unit 320 is realized by a CPU and a network interface unit of an information processing apparatus that operates according to a program. The air conditioning control means 320 has a function of controlling the air conditioning equipment.

  The illumination control unit 330 is realized by a CPU and a network interface unit of an information processing apparatus that operates according to a program. The lighting control means 330 has a function of controlling lighting equipment.

  Next, the operation of the power consumption reduction system will be described. FIG. 2 is a sequence diagram illustrating an example of processing executed by the power consumption reduction system. In the present embodiment, it is assumed that a plurality of photographing devices 100 are installed on the ceiling in the room of an office building such as a company. In addition, the photographing apparatus 100 is realized by a camera capable of photographing a subject in color.

  First, the imaging device 100 performs indoor imaging. Specifically, the photographing unit 110 of the photographing apparatus 100 photographs a room and outputs color image data to the transmission unit 120 (step S1).

  Next, the transmission unit 120 transmits the color image data to the communication unit 210 of the information processing apparatus 200 (step S2).

  Next, the communication unit 210 outputs the received color image data to the management unit 220 (step S3).

  Next, the management unit 220 outputs the color image data to the position detection unit 230 (Step S4), the number of people detection unit 240 (Step S5), and the residence time detection unit 250 (Step S6). For example, the management unit 220 may extract feature information from the color image data and transmit the feature information to the position detection unit 230, the number of people detection unit 240, and the residence time detection unit 250. In addition, about the process of step S4 to S6, not only said execution order but any process may be performed first. Further, these processes may be executed in parallel.

  When the color image data is output from the management unit 220, the position detection unit 230 detects the position of a person included in the image from the color image data, and uses the position information (a1) indicating the detected position as a control rule creation unit. It outputs to 260 (step S7).

  In addition, the number of people detecting means 240 detects the number of persons included in the image from the color image data, and outputs the number of persons information (a2) indicating the detected number of persons to the control rule creating means 260 (step S8).

  Further, the residence time detection unit 250 detects flow line information indicating a flow line of a person included in the image from the color image data. Then, the residence time detection means 250 detects the residence time in which the person is staying in the predetermined area from the flow line information, and outputs the residence time information (a3) indicating the detected residence time to the control rule creation means 260. (Step S9). The residence time detection unit 250 may output the flow line information to the control rule creation unit 260. In this case, the residence time information (a3) is included in the flow line information.

  In addition, about the process of step S7 to S9, not only said execution order but any process may be performed first. Further, these processes may be executed in parallel.

  Next, the control rule creating means 260 creates facility control data (a4) based on the position information (a1), the number of people information (a2), and the staying time information (a3), and outputs it to the communication means 210 (step S10). ). Details of the facility control data creation process executed by the control rule creation means 260 will be described later.

  Next, the communication unit 210 transmits facility control data (a4) to the communication unit 310 of the facility control device 300 (step S11).

  Next, the communication unit 310 outputs the received facility control data (a4) to the air conditioning control unit 320 (step S12) and the illumination control unit 330 (step S13). In addition, about the process of step S12 to S13, not only said execution order but any process may be performed first. Further, these processes may be executed in parallel.

  Thereafter, the air conditioning control means 320 controls the air conditioning equipment according to the facility control data (a4). Moreover, the illumination control means 330 controls an illumination apparatus according to facility control data (a4).

  Next, facility control data creation processing will be described with reference to FIGS. First, an example in which processing is executed based on position information and stay time information will be described.

  Here, it is assumed that an area is set in advance in an office whose power consumption is to be reduced. FIG. 3 shows an example of area setting. For example, as shown in FIG. 3, each desk is set as area 1, the office floor is set as area 2, and the outside of the office floor is set as area 3. In the present embodiment, as shown in FIG. 3, since each desk is set as area 1, a plurality of areas 1 are set. Area information indicating these areas is registered in advance in the storage unit of the information processing apparatus 200 by a system administrator, for example.

  Also, it is assumed that a person who has a seat in the office carries an RFID tag that stores the identification number of the seat. By carrying such an RFID tag, the location of each person's own seat can be determined. It is assumed that an RFID reader is installed in the office and the identification number stored in the RFID tag can be read.

  FIG. 4 is a flowchart showing an example of processing executed by the control rule creating means. Similar to step S7 shown in FIG. 2, the position detection unit 230 detects the position of a person included in the image from the color image data, and sends position information (a1) indicating the detected position to the control rule creation unit 260. Output (step S21 in FIG. 4).

  In step S21, when the RFID reader is reading the RFID tag carried by the person, the position detecting unit 230 obtains the position information (a1) and the identification information read from the RFID tag by the RFID reader. The information is output to the control rule creating means 260 in association with it. For example, the position detection unit 230 compares the installation position of the RFID reader that has read the RFID tag and the position of the detected person. If the position is within a predetermined range, the detected RFID tag is carried by the detected person. It is determined that the RFID tag is the same.

  Next, when the control rule creating means 260 receives the position information (a1) from the position detecting means 230, based on the position information (a1), the control rule creating means 260 is placed in any one of the areas 1, 2, and 3 where the position of the person is determined in advance. It is determined whether it belongs (step S22).

  A case where it is determined in step S22 that the position of the person belongs to any one of areas 1 will be described (step S23).

  In this case, the control rule creation means 260 matches the identification number read from the RFID tag associated with the position information with the identification number of the desk installed in the area 1 stored in advance. It is determined based on the residence time information (a3) whether or not the residence time exceeds a predetermined period.

  If the identification numbers match and it is determined that the staying time exceeds the predetermined period, the control rule creating means 260 determines that the target person is seated in his / her seat, and the corresponding area 1 Facility control data (a4) for controlling the surrounding air conditioning equipment and lighting equipment to be ON (that is, operating) is generated (step S24). As to which air conditioning equipment and lighting equipment are controlled to be ON, for example, air conditioning equipment and lighting equipment are stored in advance in association with each desk (that is, area 1), and are referenced when generating facility control data. And decide.

  In addition, the control rule creating means 260 determines the area 2 other than the area 1 based on the position information (or flow line information) of the target person from the own seat where the target person has stayed so far (that is, the area 1). A case where it is determined that the user has moved to (step S25) will be described. Here, it is assumed that the air conditioning equipment and lighting equipment in area 1 where the target person has stayed are controlled to be ON.

  In this case, the control rule creating means 260 specifies the staying time in which the target person stays in the destination area 2 based on the staying time information (a3), and the specified staying time is shorter than the predetermined period. If it is determined, facility control data for controlling the air conditioning equipment and lighting equipment in area 1 is not generated. On the other hand, if it is determined that the specified residence time is longer than the predetermined period, the control rule creating means 260 is a facility for turning off the control of the air conditioning equipment and lighting equipment in area 1 (that is, stopping the operation). Control data (a4) is generated (step S26).

  Further, a case will be described in which the control rule creating unit 260 determines that the target person has moved from the area 2 to the area 3 based on the position information (or flow line information) of the target person (step S27). . Here, it is assumed that the target person has moved from area 1 to area 2 and has further moved to area 3.

  In this case, if the control rule creating means 260 determines that the target person has not returned to the area 2 for a predetermined period or longer based on the residence time information (a3), the air conditioning of the own seat (that is, the area 1). Facility control data (a4) for turning off the facility and the lighting device is generated (step S27).

  The control rule creating means 260 performs the above determination processing and generation processing for all position information detected from the color image data. Moreover, the air-conditioning control means 320 and the illumination control means 330 control ON / OFF of an air-conditioning installation and lighting equipment according to the produced | generated facility control data (a4).

  As described above, the process is executed based on the position information and the stay time information. In addition, although the example which identifies the person's seat detected using the RFID tag was demonstrated, it is also possible to perform said control, when a person is recognized, without identifying with an RFID tag. Therefore, it is possible to deal with a person other than the resident in the office. Moreover, in this embodiment, a person's flow line and a seating state are determined and facility control data are produced | generated based on a determination result. Therefore, it differs from the technique described in Patent Document 1 in which the destination and the flow line are predicted based on the person's action history information and the device is controlled.

  Next, an example in which processing is executed based on position information and number information will be described with reference to FIG. Here, the office floor is divided into several areas, one of which is set as area 4. In addition, it is assumed that an intermediate number is set from the number of people normally present in area 4 and is defined as a comparison reference number (α). Information indicating the comparison reference number (α) is registered in advance in the storage unit of the information processing apparatus by a system administrator, for example.

  First, similarly to step S8 shown in FIG. 2, the number detection means 240 detects the number of persons located in the area 4 among the persons included in the image from the color image data, and indicates the detected number of persons. Information (a2) is output to the control rule creating means 260 (step S31 in FIG. 4).

  Then, the control rule creating means 260 compares the detected number of people with the comparison reference number of people (α) based on the number of people information (a2) (step S32).

  When it is determined that the detected number of persons is larger than the comparison reference number (α) (step S33), the control rule creating unit 260 controls the facility strength of the air conditioning equipment associated with the area 4 to be strong. Control data is generated (step S34).

  When it is determined that the detected number of people is smaller than the comparison reference number (α) (step S35), the control rule creating means 260 controls the operation intensity of the air conditioning equipment associated with the area 4 to be weak ( That is, facility control data that is not operated in a normal state is generated (step S36). In this case, the facility control data is not limited to the facility control data for controlling the operation strength to be weak, for example, the facility control data for intermittently operating the air conditioning equipment (repeating ON / OFF of the power supply of the air conditioning equipment every predetermined period) is generated. You may make it do.

  Further, when it is determined that the detected number of persons is equal to the comparison reference number of persons (α) (step S37), the control rule creating unit 260 controls the operation intensity of the air conditioning equipment associated with the area 4 in parallel ( That is, facility control data that is operated in a normal state is generated (step S38).

  As described above, the process is executed based on the position information and the number information. Further, not limited to the above example, for example, when the number of people on the floor is reduced, the seating place of the remaining people is biased to a specific area, so that the power consumption reduction system has air conditioning facilities and lighting in other areas. It is also possible to perform variable control such as stopping the equipment. Further, the facility equipment to be controlled is not limited to air conditioning equipment or lighting equipment, but may be air conditioning equipment or the like, for example.

  As described above, in the present embodiment, image data captured by a monitoring camera (for example, the imaging device 100) is analyzed by a human flow line acquisition algorithm (for example, an image analysis technique for grasping human behavior is applied). Information indicating the position and number of persons, the flow line, and the residence time in a predetermined area is acquired. Then, based on the acquired information, the movement of the person in the target area is grasped, and the facility control according to the movement of the person is performed. As an example, it is possible to grasp the number of people in a certain area and implement facility control in accordance with the number of people. In addition, it is possible to extract a feature (for example, that the user has moved from area 1 to area 2) from the flow line of the person, and determine and execute the facility control content corresponding to the flow line.

  As described above, in this embodiment, the facility equipment is not operated immediately based on the person detected in a certain area, but the movement of the person is tracked based on the flow line information, and the person finally exists. Detect facility established in the area and operate facility equipment. Therefore, it is possible to reduce power consumption more efficiently than simply detecting a person and controlling facility facilities. That is, in the present embodiment, regardless of whether or not the person is registered in advance, the facility power is controlled according to the state of the person in the target area, thereby improving the power consumption of the facility equipment. Can be reduced.

  Further, paragraph 0054 of Patent Document 1 states that “the illumination selection unit 40 can identify a path on which the user walks based on the position and movement direction of the moving object, and regards the path as the flow line 52 and the illumination 14a. Is selected ”. In the paragraph 0045 of Patent Document 1, unlike the present embodiment, a flow line means a passage that a user can move, and it is described that a plurality of lines are set in advance by an office layout.

  The difference between the present embodiment and the method described in Patent Document 1 (hereinafter simply referred to as the prior art) will be described. In the present embodiment, the facility equipment is controlled based on the flow line indicating the trajectory of the movement of the person. Do. On the other hand, in the prior art, based on the user's position and moving direction, a flow line (passage) where the user walks is estimated from a flow line that is a path that the user can move in advance, and is estimated. Facility facilities are controlled based on the flow line.

  However, even if the prior art is applied and there is no personal information including the user's behavior history information, the path on which the user walks is accurately specified based on the position and moving direction of the moving body (user). It seems difficult. For example, when a user moves to a target position on a large floor, the user may not move straight from the current position, but may change the direction of movement to avoid obstacles. It is. That is, an accurate target position cannot be estimated only with the current position and the moving direction, and if the target position cannot be estimated, it is not possible to identify the path on which the user walks.

  Therefore, when the prior art is applied, it is considered that extra control based on uncertain prediction is performed, and on the other hand, power consumption cannot be reduced. On the other hand, in this embodiment, since equipment is controlled based on a user's action result, the extra control based on uncertain prediction is not performed. Therefore, in this embodiment, the power consumption of facility equipment can be reduced more efficiently.

  Next, the minimum configuration of the power consumption reduction device according to the present invention will be described. FIG. 6 is a block diagram illustrating a minimum configuration example of the power consumption reduction device. As shown in FIG. 6, the power consumption reduction device includes a flow line detection unit 1 and a facility equipment control unit 2 as minimum components.

  In the power consumption reduction device having the minimum configuration shown in FIG. 6, the flow line detection unit 1 detects flow line information indicating a flow line of a person from an image obtained by shooting a predetermined place by the shooting unit. Then, the facility equipment control means 2 controls the facility equipment based on the flow line information detected by the flow line detection means.

  Therefore, according to the power consumption reduction device having the minimum configuration, the power consumption of the facility equipment can be efficiently reduced.

  In addition, in this embodiment, the characteristic structure of the power consumption reduction apparatus as shown to the following (1)-(6) is shown.

  (1) The power consumption reduction apparatus is a flow line detecting unit (for example, realized by the photographing device 100) that detects flow line information indicating a flow line of a person from an image obtained by photographing a predetermined place. Based on the flow line information detected by the flow line detection means and the facility time control means (for example, control rule creation) Means 260 and air-conditioning control means 320 or illumination control means 330).

  (2) In the power consumption reduction apparatus, position detection means (for example, realized by the position detection means 230) for detecting position information indicating the position of the person from the image, and the person from the flow line information detected by the flow line detection means A dwell time detecting means (for example, realized by the dwell time detecting means 250) for detecting dwell time information indicating a dwell time in a predetermined area, and the facility equipment control means is detected by the position detecting means. The facility equipment may be configured to be controlled based on the detected position information and the detection time information detected by the residence time detection means.

  (3) In the power consumption reduction apparatus, the facility equipment control means determines that the person is located in the area based on the position information detected by the position detection means, and the residence time information detected by the residence time detection means The facility is configured to control the facility equipment associated with the area to operate when it is determined that the predetermined period of time has elapsed for the person staying in the area. Also good.

  (4) In the power consumption reduction device, the facility equipment control means determines that the person has moved from the predetermined first area to the second area based on the flow line information, and based on the residence time information. When it is determined that the time during which the person stays in the second area has passed a predetermined period, the power consumption of the facility equipment associated with the first area is reduced (for example, And the operation may be stopped).

  (5) The power consumption reduction apparatus includes number detection means (for example, number detection means 240) for detecting the number information indicating the number of persons located in a predetermined area from the image, and the facility equipment control means includes the number detection means. May be configured to control the facility facility based on the number of people information detected.

  (6) In the power consumption reduction apparatus, the facility equipment control means determines the number of persons located in a predetermined area (for example, area 4 shown in FIG. 3) and a predetermined threshold (for example, based on the number of persons information). The comparison facility (α)) may be compared, and the facility equipment associated with the area may be controlled based on the comparison result.

  The present invention can be applied to uses such as offices that reduce power consumption.

DESCRIPTION OF SYMBOLS 1 Flow line detection means 2 Facility equipment control means 100 Imaging equipment 110 Imaging means 120 Transmission means 200 Information processing apparatus 210 Communication means 220 Management means 230 Position detection means 240 Person number detection means 250 Residence time detection means 260 Control rule creation means 300 Facility control Device 310 Communication means 320 Air conditioning control means 330 Illumination control means

Claims (9)

A flow line detecting means for detecting flow line information indicating a flow line of a person from an image obtained by photographing a predetermined place by the photographing means;
A power consumption reduction device comprising: facility equipment control means for controlling facility equipment based on the flow line information detected by the flow line detection means. Position detecting means for detecting position information indicating the position of the person from the image;
Dwell time detection means for detecting dwell time information indicating the dwell time of the person in a predetermined area from the flow line information detected by the flow line detection means;
The power consumption reduction apparatus according to claim 1, wherein the facility equipment control means controls the facility equipment based on the position information detected by the position detection means and the detection time information detected by the dwell time detection means. The facility equipment control means determines that the person is located in the area based on the position information detected by the position detection means, and the person enters the area based on the residence time information detected by the residence time detection means. The power consumption reduction apparatus according to claim 2, wherein when it is determined that the staying time has passed a predetermined period, the facility equipment associated with the area is controlled to operate. The facility equipment control means determines that the person has moved from the predetermined first area to the second area based on the flow line information, and based on the residence time information, the person determines that the person has moved to the second area. The control is performed so as to reduce the power consumption of the facility equipment associated with the first area when it is determined that the predetermined period of time has remained in the area. The power consumption reduction device described. Comprising number detection means for detecting number information indicating the number of persons located in a predetermined area from the image;
5. The power consumption reduction device according to claim 1, wherein the facility equipment control unit controls the facility equipment based on the number of people information detected by the number of people detection unit. The facility equipment control means compares the number of persons located in a predetermined area with a predetermined threshold based on the number information, and controls the facility equipment associated with the area based on the comparison result. The power consumption reduction device according to claim 5. Photographing means;
A power consumption reduction device;
A facility equipment control device,
The power consumption reduction device is:
Flow line detecting means for detecting flow line information indicating a flow line of a person from an image obtained by shooting the predetermined place by the photographing means;
The facility equipment control device comprises:
A power consumption reduction system comprising facility facility control means for controlling facility equipment based on the flow line information detected by the flow line detection means. Detecting the flow line information indicating the flow line of the person from the image taken by the photographing means at a predetermined location;
A facility consumption control method, wherein facility facilities are controlled based on the detected flow line information. On the computer,
A flow line detection process for detecting flow line information indicating a flow line of a person from an image obtained by the photographing unit photographing a predetermined place;
A power consumption reduction program for executing facility facility control processing for controlling facility facilities based on the detected flow line information.

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