JP2020177764A - Control system - Google Patents

Abstract

To provide a control system capable of easily detecting the number of people staying in a space and utilizing detected information.SOLUTION: A control system according to the present invention includes: an image sensor imaging a space thereby to detect the number of people staying in the space as the number of people detected; and a display device displaying charge data calculated according to the number of people detected.SELECTED DRAWING: Figure 1

Description

The present invention relates to a control system.

Patent Document 1 discloses a number measurement system. The people counting system includes a human sensor for detecting a person in and out of the space, and CO ₂ sensor for detecting the CO ₂ concentration in the space, CO ₂ concentration detected by the detection signal and the CO ₂ sensor from the human sensor It is provided with a calculation means for calculating the number of people in the space based on. The calculation means calculates the first calculated value as the number of people in the space based on the detection signal from the motion sensor, and the second calculated value as the number of people in the space based on the CO ₂ concentration detected by the CO ₂ sensor. Is calculated. The calculation means selects either the first calculated value or the second calculated value to determine the number of people in the space.

Japanese Patent No. 5966958

Generally, a motion sensor detects that a heat source has moved by infrared rays. Therefore, while the motion sensor detects the comings and goings of people, it cannot accurately measure the number of people staying in the detection area. Therefore, in Patent Document 1, the first calculated value is corrected by the second calculated value. However, in the system of Patent Document 1, it is necessary to install equipment including a CO ₂ sensor such as a ventilation device or an air supply duct on the ceiling. Therefore, it can be difficult to install the system after the facility is built. From the above, it may be difficult to detect the number of people in the space and use the detected information.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to easily detect the number of people staying in a space and obtain a control system that can use the detected information.

The control system according to the present invention includes an image sensor that detects the number of people staying in the space as the number of detected people by imaging the space, and a display device that displays charge data calculated according to the number of detected people. , Equipped with.

The control system according to the present invention is used when an image sensor that detects the number of people staying in the space as a detection number by imaging the space and a preset number of users and the detection number are different. It is provided with a notification unit for notifying a person.

The control system according to the present invention has an image sensor that detects the number of people staying in the space by imaging the space, and exchanges or supplies equipment in the space according to the information detected by the image sensor. It is equipped with a management device that encourages the user.

In the control system according to the present invention, the number of people staying in the space can be easily detected by the image sensor, and the detected information can be used.

It is a figure which shows the structure of the control system which concerns on Embodiment 1. FIG. It is a figure explaining the detection range of an image sensor. It is a figure which shows the structure of the control system which concerns on Embodiment 2. It is a figure explaining the monitor screen of the display device which concerns on Embodiment 3. FIG.

The control system according to the embodiment of the present invention will be described with reference to the drawings. The same or corresponding components may be designated by the same reference numerals and the description may be omitted.

Embodiment 1.
FIG. 1 is a diagram showing a configuration of a control system 100 according to the first embodiment. The control system 100 includes a controller 1. The controller 1 is installed in the lighting control panel or on the ceiling. The controller 1 collects information from the terminal equipment in the control system 100 and controls the lighting state of the lighting fixture 2. Further, the controller 1 transmits information to the host system and executes a control command from the host system.

There are multiple types of terminal equipment. In FIG. 1, as an example, a lighting fixture 2, an illuminance sensor 3, a wall switch 4, and an image sensor 5 are connected to the controller 1. In FIG. 1, only one lighting fixture 2, the illuminance sensor 3, the wall switch 4, and the image sensor 5 are displayed, but each terminal device may be used by being connected to the controller 1.

The luminaire 2 is connected to the controller 1 by a communication line. The luminaire 2 changes the lighting state by receiving a control command from the controller 1. The control commands include, for example, ON, OFF, dimming rate, and color temperature commands. The luminaire 2 includes a light source and a power supply device that turns on the light source by turning the switching element on and off. The light source is composed of, for example, an LED. The lighting fixture 2 may be internally equipped with a control unit that converts received communication data and transmits it to a power supply device. Further, in the lighting fixture 2, the control unit included in the power supply device may directly transmit and receive communication data. The control unit drives the switching element via the control unit or based on the communication data directly received.

The illuminance sensor 3 is installed on the ceiling, for example. The illuminance sensor 3 detects the reflected light in the target area at the light receiving unit. The target area is, for example, the floor surface. The illuminance sensor 3 converts the detected amount of light into an electric signal and measures the relative illuminance value. The illuminance sensor 3 transmits the measured illuminance value data to the controller 1.

The controller 1 collates the illuminance value data with the preset target illuminance. The controller 1 transmits a dimming command to the luminaire 2 so that the illuminance value data and the target illuminance match. The illuminance sensor function may be mounted on the image sensor 5.

The wall switch 4 is installed on the wall surface. The wall switch 4 is installed at a position within the reach of general users. The wall switch 4 has a plurality of switches. The address, group number, or dimming rate pattern control of the luminaire 2 is set in each of the plurality of switches. When the user presses the switch of the wall switch 4, ON / OFF of the lighting fixture 2 having the address or group number set in the switch is controlled. Also, by pressing the switch, the pattern control set in the switch is executed.

The image sensor 5 is installed on the ceiling. The image sensor 5 has a camera 5a. A pyroelectric sensor generally used as a motion sensor detects only the movement of a heat source body. On the other hand, the image sensor 5 of the present embodiment acquires image data by the camera 5a and determines whether or not a person exists in the target area. The image sensor 5 determines the presence or absence of a person by a unique detection algorithm. The image sensor 5 compares the base background image with the captured image data. The image sensor 5 detects a person's entry into the target area, movement from the target area, stay, and passage based on the comparison result.

The image sensor 5 transmits only the necessary information out of the detected information to the controller 1. The controller 1 that receives the information from the image sensor 5 dimming and controls the lighting fixture 2 associated with the detection block 61 that has the human body detection information. The detection block 61 will be described later.

The setter 6 is connected to a communication line connecting the controller 1 and the gateway device 7. The setting device 6 is used to set the lighting control of the controller 1 and the communication setting to the higher-level equipment of the controller 1. The user sets the address and group number of each terminal device from the setting device 6. Further, the user sets the parameters for automatic control held by the controller 1 from the setting device 6. The parameters for automatic control are the target illuminance, the upper limit dimming rate, the lower limit dimming rate, the allocation setting of the wall switch 4, and the like.

The setting device 6 communicates with the terminal device and the controller 1. Communication is performed, for example, by connecting to a communication line between the controller 1 and the gateway device 7. Further, the communication may be performed by connecting to the BACnet (Building Automation and Control Protocol) to which the gateway device 7 is connected. BACnet is a communication protocol standard for building networks. BACnet is used for communication between the gateway device 7 and the management device 8. Further, the setting device 6 may transmit / receive data to / from the terminal device by wireless communication such as infrared communication or wired communication. The communication protocol of the setter 6 does not matter.

The gateway device 7 has a gateway function between communication with the controller 1 and BACnet communication. The gateway device 7 converts communication data between communication with the controller 1 and BACnet communication.

The management device 8 communicates with the gateway device 7 by BACnet communication using Ethernet (registered trademark). The management device 8 acquires information from the terminal device or the controller 1 via the gateway device 7. The management device 8 transmits this information to the display device 9.

The display device 9 has a monitor screen. The display device 9 displays the information received from the management device 8 on the monitor screen. Further, the display device 9 may have a touch panel, and the display contents may be changed or the pages may be switched by operating the touch panel.

As the above-mentioned data communication means, either wired communication or wireless communication may be adopted.

FIG. 2 is a diagram illustrating a detection range 60 of the image sensor 5. FIG. 2 is an example of an image obtained by capturing an image of the floor surface direction from the ceiling with the camera 5a mounted on the image sensor 5. In FIG. 2, the chair 10 and the desk 11 are laid out in the detection range 60. A plurality of people 12 are seated in the chair 10.

The image sensor 5 is arranged, for example, in the center of the detection range 60. The detection range 60 of the image sensor 5 of the present embodiment is a square area of 7.2 m square on the floor surface. The area and shape of the detection range 60 are not limited to this. The detection range 60 varies depending on the type, performance, and detection accuracy of the camera 5a used for the image sensor 5.

The image sensor 5 divides the space having the detection range 60 into a plurality of detection blocks 61, and detects the presence or absence of a person for each of the plurality of detection blocks 61. The image sensor 5 acquires an image for each detection block 61, compares the acquired image with a base image stored in advance, and detects the presence or absence of a person.

One detection block 61 is a 0.9 m square. The detection blocks 61 are arranged in eight rows on one side of the detection range 60. The detection range 60 has 64 detection blocks 61. The area and shape of the detection block 61 and the arrangement of the plurality of detection blocks 61 are not limited to this. Further, the number of detection blocks 61 included in one detection range 60 may be plural.

The imaging range of the camera 5a mounted on the image sensor 5 is wide-angle. The detection may be masked at the outer peripheral portion of the imaging range of the image sensor 5. That is, the camera 5a may be used with the detection range narrowed down arbitrarily. Further, a higher performance image sensor 5 may be used. For example, the detection range 60 of 7.2 m square may be divided into 256 blocks having 16 rows on each side for detection.

The image sensor 5 is equipped with an algorithm for detecting the intrusion, movement, stay, and passage of an object. When the image sensor 5 detects the intrusion, movement, or passage of a person, it does not immediately determine that the person has stayed in the space. The image sensor 5 detects the stay of a person when the moving object stops for a predetermined time. The image sensor 5 can simultaneously detect a plurality of people staying in the space. In this way, the image sensor 5 captures the space and detects the number of people staying in the space as the number of detected people. Further, the image sensor 5 may detect the time spent in the space by a person.

Further, the image sensor 5 counts the people in the space, and when the count number of the people in the space is maintained for a predetermined time or longer, the count number is detected as the number of detected people. That is, the image sensor 5 determines the count number as the number of detected people when the count number does not change for the specified time. Further, when the count number fluctuates within the specified time, the image sensor 5 determines that the number of people before the change in the count number continues. The specified time is set from the setting device 6 to the image sensor 5.

As a result, the exact number of users can be detected even when the user temporarily disappears from the space or when a person other than the user temporarily exists in the space.

The image sensor 5 transmits the number of detected people to the controller 1. The image sensor 5 periodically transmits, for example, the number of detected people. The controller 1 may periodically transmit a monitor signal to the image sensor 5, and the image sensor 5 may transmit the number of detected people to the controller 1 according to the monitor signal. Further, the image sensor 5 may voluntarily transmit the number of detected persons to the controller 1 according to the time interval measured by itself. As a result, the controller 1 can grasp the number of detected persons in real time.

The controller 1 calculates the charge data according to the number of detected people. The charge data is calculated from, for example, the number of detected persons and the staying time of the person staying in the space. The controller 1 calculates the charge data based on the charge setting set in advance. Here, the charge setting is, for example, a charge per unit time charged to one user. The charge setting is stored in the storage unit of the controller 1. The charge setting can be arbitrarily set from the setting device 6 to the controller 1, for example.

The controller 1 transmits the calculated charge data to the management device 8 via the gateway device 7. When the management device 8 receives the charge data, the management device 8 transmits the charge data to the display device 9. The management device 8 may receive information on the presence / absence of a person in each detection block 61 from the image sensor 5 via the controller 1 and the gateway device 7.

From the above, the charge data is transmitted from the controller 1 to the display device 9 via the management device 8. As a result, the charge data calculated according to the number of detected persons is displayed on the monitor screen of the display device 9. Information such as a room number may be displayed on the display device 9 together with the charge data. Therefore, the administrator can recognize the charge data of the space.

In facilities such as conference rooms for rent or karaoke boxes, the payment fee may be determined by the number of people and the usage time. In the present embodiment, the image sensor 5 can accurately grasp the number of people and the time actually staying in the space. Therefore, the charge can be calculated accurately. The controller 1 can reduce the workload of the user by automatically calculating the charge from the charge data stored in itself. Here, the user is, for example, the administrator of the control system 100.

In this embodiment, the image sensor 5 detects a person. Therefore, it is not necessary to install large equipment to detect a person. Further, for example, the control system 100 can be constructed by adding the image sensor 5 to the existing lighting control system. Therefore, the introduction cost of the control system 100 can be reduced. In addition, the control system 100 can be easily installed after the construction of the building. From the above, in the present embodiment, the number of people staying in the space can be easily detected and the detected information can be used.

Generally, a motion sensor cannot accurately detect the number of people staying in a space. Further, for example, when the number of people staying is corrected by combining a motion sensor and a CO ₂ sensor, it is conceivable that a calculation using the detection information of the two types of sensors occurs every time a person passes or invades. Therefore, the amount of calculation may be enormous. On the other hand, in the present embodiment, the number of people staying in the space can be accurately detected only by the image sensor 5. Therefore, the number of people staying in the space can be easily detected.

As a modification of this embodiment, the image sensor 5 may calculate the charge data according to the number of detected persons and transmit the charge data to the controller 1. In this case, the controller 1 transmits the received charge data to the display device 9 via the gateway device 7 and the management device 8. Further, the charge setting is set in the image sensor 5 itself, and the image sensor 5 stores the charge setting.

Not limited to this, the number of detected persons detected by the image sensor 5 may be transmitted to the management device 8 via the controller 1 and the gateway device 7, and the management device 8 may calculate the charge data.

Further, the controller 1 controls the lighting state of the lighting fixture 2 based on the information detected by the image sensor 5. When the image sensor 5 detects the presence of a person in the space within the detection range 60, the image sensor 5 transmits the detection information to the controller 1. The controller 1 may light the lighting fixture 2 provided in the space based on the detection information. Further, when the image sensor 5 detects the absence of a person in the space, the detection information may be transmitted to the controller 1, and the controller 1 may turn off the lighting fixture 2 provided in the space based on the detection information.

Further, a plurality of lighting fixtures 2 may be provided in the space. In this case, the image sensor 5 transmits the presence / absence detection information of a person for each of the plurality of detection blocks 61 to the controller 1. The controller 1 controls the lighting state of the lighting fixture 2 associated with the detection block 61 included in the detection information among the plurality of lighting fixtures 2.

The controller 1 adjusts the dimming rate of the lighting fixture 2 that illuminates the detection block 61 in which the presence of a person is detected among the plurality of lighting fixtures 2, and the dimming of the lighting fixture 2 that illuminates the detection block 61 in which the absence of a person is detected. It may be higher than the rate. As a result, power consumption can be reduced in a space such as a store where the control system 100 is provided. In addition, the effect of lighting the space can be improved.

It should be noted that the controller 1 can transmit the charge data based on the number of detected persons from the image sensor 5 and control the lighting fixture 2 according to the detection information from the image sensor 5 in parallel. Further, such dimming control may be performed by the management device 8.

Further, in the present embodiment, the image sensor 5 detects the presence or absence of a person for each detection block 61. Not limited to this, the image sensor 5 may detect the number of people staying in the space. Further, a plurality of image sensors 5 may be provided in one space or room. In this case, the plurality of image sensors 5 detect the number of people staying in one space.

These modifications can be appropriately applied to the control system according to the following embodiments. Since the control system according to the following embodiment has much in common with the first embodiment, the differences from the first embodiment will be mainly described.

Embodiment 2.
FIG. 3 is a diagram showing the configuration of the control system 200 according to the second embodiment. The control system 200 of the present embodiment is provided with an automatic settlement device 13 in which the space user pays a fee instead of the display device 9. The charge data is transmitted from the management device 8 to the automatic settlement device 13.

The control system 200 includes a plurality of image sensors 5. The plurality of image sensors 5 are provided in each of the plurality of spaces. The plurality of image sensors 5 image each of the plurality of spaces and detect the number of people staying in the plurality of spaces.

The data transmitted from the management device 8 to the automatic settlement device 13 includes identification information of a plurality of spaces and charge data of each of the plurality of spaces. The identification information of the plurality of spaces is, for example, a room number.

The automatic settlement device 13 has a numeric keypad or a touch panel as an input unit. The user operates the input unit of the automatic settlement device 13 to input the used room number. Further, the automatic settlement device 13 may have a receiving unit. The user touches or brings a key equipped with a magnetic card, an IC chip, or the like to or close to a receiving unit mounted on the automatic settlement device 13. As a result, the room number may be recognized by the automatic settlement device 13. In this way, information for identifying the space in which the user stayed among the plurality of spaces is input to the automatic settlement device 13 by the user of the space.

The automatic settlement device 13 displays the charge data of the space in which the user stayed, according to the input identification information. As a result, the user grasps the payment amount and pays to the automatic payment device 13 by cash or a credit card.

In the present embodiment, the user can pay the fee to the unmanned automatic settlement device 13 without going through the administrator. As a result, the load on the administrator can be reduced and the labor cost can be reduced.

Embodiment 3.
FIG. 4 is a diagram illustrating a monitor screen 9a of the display device 9 according to the third embodiment. FIG. 4 shows an example of the monitor screen 9a of the display device 9 of the control system 100. In the control system 100, the management device 8 and the display device 9 are provided separately. Not limited to this, when the management device 8 is equipped with a monitor screen, the same display may be made on the management device 8.

On the monitor screen 9a, the room number is displayed as the identification information of the plurality of spaces. In addition, the usage status for each room number is displayed on the monitor screen 9a. There are two types of usage, in use and vacancies. The usage status may be entered by the administrator or the user when entering each room. Further, depending on the image sensor 5 detecting the stay of a person in the room, the display device 9 may display the usage status of the room as being in use.

In addition, the number of applicants and the number of detected persons are displayed on the monitor screen 9a. The number of applicants is the number of applicants when entering the room. The detected number of people is the number of people staying in the space detected by the image sensor 5.

Further, an alarm is displayed on the monitor screen 9a. The display device 9 notifies the user by an alarm when the number of applicants, which is the preset number of users of the space, and the number of detected persons are different. In FIG. 4, in room number 103, the number of detected people is larger than the number of applicants. In this case, an excessive display appears in the alarm column. The display device 9 may issue an alarm with an alert sound or the like in accordance with the display of the alarm.

By receiving the alarm, the administrator can prompt the correction of the number of applicants. Therefore, the user can be made to make a legitimate payment. As a result, for example, when the user underreports the number of people, it is possible to prevent the payment from being less than the legitimate usage fee. In addition, since the manager grasps the number of people, it is possible to save the trouble of visually counting the number of people using the room in use.

In addition, the charge setting and the charge interval are displayed on the monitor screen 9a. In the present embodiment, a usage fee of 500 yen per hour is set for each user. In addition, the usage fee is charged every 30 minutes, which is the charging interval. In other words, there is no charge for rooms that have been used for less than 30 minutes. In addition, a usage fee of 250 yen x number of people will be charged every 30 minutes.

The staying time of the user is displayed as the elapsed time on the monitor screen 9a. Further, on the monitor screen 9a, the charge data calculated by the controller 1 based on the staying time, the number of detected persons, and the above charge setting is displayed as a charge. As a result, the administrator can grasp the usage time and charge of each room in the usage state.

The charge, elapsed time, etc. may be transmitted and displayed on the terminal screen installed in each room. This allows the user to check the current billing status.

In the present embodiment, the number of users and the charge can be finely managed by using some functions of the lighting control system. Further, the control system 100 of the present embodiment enables unmanned facilities and centralized management by a network. Therefore, the number of managers can be reduced and labor costs can be significantly reduced.

As a first modification of the present embodiment, the control system 100 does not have to have a charge calculation function. In the first modification, the control system 100 includes an image sensor 5 and a notification unit. The notification unit notifies the user when the preset number of users and the number of detected persons detected by the image sensor 5 are different. The notification unit is, for example, a display device 9. In the first modification, the display device 9 may only display an alarm when there is a difference between the number of applicants and the number of detected persons, for example.

As a second modification of the present embodiment, the management device 8 may accumulate usage history information of the conference room or equipment based on the number of users and the usage time detected by the image sensor 5.

In the second modification, the management device 8 prompts the user to replace or supply equipment in the space according to the information detected by the image sensor 5. The control system 100 includes, for example, a plurality of image sensors 5. The plurality of image sensors 5 image each of the plurality of spaces and detect the number of people staying in the plurality of spaces. The management device 8 prompts the user to replace or supply the equipment of the space more frequently as the space is frequently used within a certain period of time, the space is used for a long time, or the space has a large number of users.

For example, when the space is a conference room, the management device 8 prompts the manager to replace the equipment in the frequently used conference room at an earlier timing than in the less frequently used conference room. Equipment includes, for example, whiteboard markers, projector lamps, and the like. Alternatively, for durable equipment such as chairs and desks, the management device 8 encourages replacement of durable equipment used in frequently used conference rooms with durable equipment used in infrequently used conference rooms. You may. That is, the durable equipment may be rotated to even out the frequency of use.

Further, the management device 8 may prompt the user to replace or supply the equipment of the space when the usage time of the space or the number of users exceeds the threshold value. Further, not limited to the management device 8, the control system 100 may be linked with an external management system that manages consumables or equipment. In this case, the management system prompts the user to replace or supply the equipment.

The technical features described in each embodiment may be used in combination as appropriate.

1 controller, 2 lighting fixtures, 3 illuminance sensor, 4 wall switch, 5 image sensor, 5a camera, 6 setting device, 7 gateway device, 8 management device, 9 display device, 9a monitor screen, 10 chairs, 11 desks, 12 people , 13 automatic checkout device, 60 detection range, 61 detection block, 100, 200 control system

Claims (15)

An image sensor that detects the number of people staying in the space as the number of detected people by imaging the space,
A display device that displays charge data calculated according to the number of detected people, and
A control system characterized by being equipped with. The control system according to claim 1, further comprising a controller that calculates the charge data according to the number of detected persons and transmits the charge data to the display device. A controller for transmitting the charge data to the display device is provided.
The control system according to claim 1, wherein the image sensor calculates the charge data according to the number of detected persons and transmits the charge data to the controller. The image sensor counts people in the space, and when the count number of people in the space is maintained for a predetermined time or longer, the count number is detected as the number of detected persons. The control system according to any one of claims 1 to 3. The control system according to any one of claims 1 to 4, wherein the charge data is calculated from the number of detected persons and the staying time of a person staying in the space. The control system according to any one of claims 1 to 5, wherein the display device is an automatic payment device for which a user of the space pays a fee. Equipped with a plurality of the image sensors
The plurality of image sensors detect the number of people staying in the plurality of spaces, respectively.
The control system according to claim 6, wherein the display device displays the charge data of the space when the user inputs information for identifying the space in which the space is stayed. .. The control system according to any one of claims 1 to 7, wherein the display device notifies the user when the preset number of users of the space and the detected number of people are different. The control system according to any one of claims 1 to 8, further comprising a management device that prompts the user to replace or supply equipment in the space according to the information detected by the image sensor. Equipped with a plurality of the image sensors
The plurality of image sensors each image a plurality of spaces and detect the number of people staying in the plurality of spaces.
In the management device, the more frequently used space within a certain period of time, the longer the usage time, or the larger the number of users of the plurality of spaces, the more frequently the user replaces or supplies the equipment in the space. The control system according to claim 9, wherein the control system is characterized by prompting the user. The image sensor is characterized in that the space is divided into a plurality of detection blocks, and the presence or absence of a person is detected for each of the plurality of detection blocks to detect the number of people staying in the space. The control system according to any one of claims 1 to 10. Equipped with lighting equipment provided in the space
The control system according to claim 2 or 3, wherein the controller controls a lighting state of the luminaire based on the information detected by the image sensor. An image sensor that detects the number of people staying in the space as the number of detected people by imaging the space,
A notification unit that notifies the user when the preset number of users and the number of detected users are different.
A control system characterized by being equipped with. An image sensor that detects the number of people staying in the space by imaging the space,
A management device that prompts the user to replace or supply equipment in the space according to the information detected by the image sensor.
A control system characterized by being equipped with. Equipped with a plurality of the image sensors
The plurality of image sensors each image a plurality of spaces and detect the number of people staying in the plurality of spaces.
In the management device, the more frequently used space within a certain period of time, the longer the usage time, or the larger the number of users of the plurality of spaces, the more frequently the user replaces or supplies the equipment in the space. 14. The control system according to claim 14, characterized in that.

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