Control system

Abstract

To provide a control system which does not require a user to operate an operation unit to light up an operation screen.SOLUTION: A control system of the present disclosure has an apparatus for switching an operational state according to the presence or absence of a person, and includes: an operation unit having an operation screen for operating the apparatus; and a person detector for detecting a person in a target area including the apparatus. The control system performs reception processing of receiving detection information of a person from the detector, and screen lighting-up processing of lighting up the screen operation of the operation unit when the detection information shows that a person is detected in the area in which the operation unit is set.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to control systems. [Background technology]

[0002] Backlights for operation screens such as LCD switches, or LED lamps for displaying operation switches, consume power if they are left on all the time. For this reason, in order to conserve energy, there is a function that automatically turns them off if no operation is performed for a certain period of time. In that case, the backlight or LED lamp must be turned on again when the operation is performed again.

[0003] Patent Document 1 discloses a technology that uses a capacitance sensor or a piezoelectric sensor to recognize touch by a person on the operation screen of a remote control that controls the operating state of a device, and turns on the backlight of the operation screen that has been turned off. In this technology, the brightness of the room is detected by a sensor provided in the remote control, and a judgment is further made as to whether it is day or night. This makes it possible to adjust the brightness of the backlight to suit each time of day or night. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-21586 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above method, the user must touch the operation screen once to turn it on when it is turned off. For example, even if the desired operation is to simply press the ON / OFF button for driving, the user must touch the operation screen twice, which may be irritating to the user.

[0006] In order to solve the above-mentioned problems, the present disclosure has an object to provide a control system that does not require a user to operate a controller to light up an operation screen. [Means for solving the problem]

[0007] An aspect of the present disclosure is a control system including a device that switches an operating state depending on the presence or absence of a person, an operating device having an operating screen for operating the device; a human detection device for detecting a human in a target area including the device; Equipped with a receiving process of receiving human detection information from the human detection device; a screen lighting process for lighting up the operation screen of the controller when the detection information indicates the detection of a person in an installation area of ​​the controller; Preferably, the method is configured to execute: Effect of the Invention

[0008] According to an aspect of the present disclosure, a control system can be provided in which a user does not need to operate an operating device to light up an operation screen. [Brief description of the drawings]

[0009] [Figure 1] 1 is a block diagram showing a configuration example of a control system according to a first embodiment of the present disclosure. [Diagram 2] FIG. 2 is a block diagram showing a detailed configuration example of a control system according to the first embodiment of the present disclosure. [Diagram 3] FIG. 2 is a plan view illustrating a target area of ​​an image sensor according to the first embodiment of the present disclosure. [Figure 4] FIG. 2 is a plan view showing an arrangement of an image sensor, lighting fixtures, and an operating device according to the first embodiment of the present disclosure. [Diagram 5] 4 is a flowchart of an operation device illumination control performed by a controller according to the first embodiment of the present disclosure. [Figure 6]FIG. 11 is a block diagram showing a configuration example of a control system according to a second embodiment of the present disclosure. [Figure 7] FIG. 11 is a block diagram illustrating a configuration example of a control system according to a third embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Embodiment 1 FIG. 1 is a block diagram showing a configuration example of a control system 100 according to a first embodiment of the present disclosure. In the control system 100, a controller 1 is installed in a lighting control panel or on a ceiling. The controller 1 collects information from a terminal device connected to itself, and performs lighting control to change the lighting state of a lighting fixture 2 according to the collected information. The lighting state here includes the on / off, dimming, and color temperature state of a light source provided in the lighting fixture 2. In lighting control, the controller 1 stores a plurality of target values ​​of the lighting state, and selects an appropriate target value according to information collected from the terminal device. Furthermore, the controller 1 transmits lighting control data for realizing the selected target value to the lighting fixture 2.

[0011] The terminal devices are a collective term for the lighting fixtures 2, and the image sensors 3, controllers 4, and illuminance sensors 5 described below. However, the types and number of terminal devices are not limited to those shown in the example of Fig. 1, and may be appropriately determined depending on the usage environment of the control system 100.

[0012] Furthermore, the controller 1 performs lighting control of the operation screen of the operation device 4 (hereinafter referred to as operation device lighting control) based on human detection information from the image sensor 3.

[0013] Furthermore, the controller 1 transmits its own operating information or information collected from terminal devices to a higher-level system, and also receives and executes control commands from the higher-level system.

[0014] The lighting fixtures 2 change their lighting states by receiving lighting control data from the controller 1. Wired communication as shown in Fig. 1 is used for communication between the lighting fixtures 2 and the controller 1. Alternatively, wireless communication may be used.

[0015] The image sensor 3 is mainly installed on the ceiling, and the camera mounted on it captures images in the direction of the floor to detect people in the target area. The image sensor 3 judges whether there is a change from the images captured periodically, and detects people entering the target area, people moving, staying or not, passing through, the number of people, etc.

[0016] In the following, information detected by the image sensor 3 regarding people entering the target area, people's movement, presence or absence, passage, and the number of people will be collectively referred to as detection information.

[0017] The image sensor 3 further transmits the detection information to the controller 1. This enables the controller 1 to control the lighting fixtures 2 and the operation device 4 that are responsible for the target area of ​​the image sensor 3 that transmitted the detection information.

[0018] The controller 4 has a display and a backlight, and displays buttons or characters on the screen by illuminating the display with the backlight. The controller 4 is, for example, a liquid crystal switch. The controller 4 is installed on a wall or the like within reach of the user. The controller 4 operates the lighting fixture 2 to achieve the lighting state desired by the user, which is input via the operation screen.

[0019] 1, when the controller 1 and the terminal device are connected by wired communication, the operation device 4 is powered via the controller 1 connected to a commercial power source. Alternatively, when the controller 1 performs wireless communication with the terminal device, the operation device 4 itself may be connected to a commercial power source or may be powered by a battery.

[0020] When there are multiple lighting fixtures 2, the controller 4 stores the address number of each lighting fixture 2. Operation buttons for each lighting fixture 2 are displayed on the operation screen, and the operation content of each button is transmitted to the corresponding lighting fixture 2 by a signal with an address number attached.

[0021] The controller 4 can also collectively control the lighting state of a group of multiple lighting fixtures 2. In this case, the controller 4 stores group numbers assigned to multiple lighting fixtures 2. A button for collectively controlling the group is displayed on the operation screen.

[0022] Furthermore, the controller 4 can collectively control the lighting conditions for a plurality of groups. Furthermore, the controller 4 can store and execute lighting control details that are frequently used by the user as patterns.

[0023] The controller 4 assumed for use in this disclosure is different from a push button type wall switch in that the number, shape, size and arrangement of buttons on the operation screen can be freely laid out. In addition, since multiple screens can be created and the pages can be switched for operation, many buttons can be mounted. Furthermore, the controller 4 can input characters on the operation screen to display the name of each button. Furthermore, multiple buttons arranged on the operation screen can be collectively controlled. Furthermore, it can be equipped with a clock function and a schedule function to automatically operate at a preset time.

[0024] The illuminance sensor 5 is mainly installed on the ceiling, and detects reflected light from the desk surface, floor surface, etc. in the target area with a light receiving unit, and measures the relative illuminance value. The measured illuminance value is transmitted to the controller 1. As a result, the controller 1 compares the received illuminance value with the target illuminance, and can implement lighting control so that the illuminance value of the illuminance sensor 5 approaches the target illuminance.

[0025] The setting device 6 controls the controller 1 and the terminal device. The setting device 6 is, for example, a wireless remote control, a personal computer, or a mobile terminal. The setting device 6 exchanges data with the controller 1 and the terminal device by infrared communication. Alternatively, data may be exchanged using the wired communication shown in FIG. 1 that connects the controller 1 and the terminal device. Alternatively, wireless communication and a communication line between the controller 1 and the upper system may be used.

[0026] As described above, in the control system 100 of the present disclosure, the controller 1 performs lighting control on the lighting fixtures 2 in the target area based on information from the image sensor 3 and the illuminance sensor 5. As an example of lighting control, when a person is staying or moving, the target dimming rate is set to 70% and 5%, respectively, and the lighting state is changed to achieve the target value. In this way, when movement is detected, the lighting fixtures 2 are turned on at the minimum dimming rate that allows walking, and when a person is staying, the dimming rate is increased to the brightness required for a person to work. The target value of the dimming rate can be set arbitrarily by the administrator, and a setting device 6 is used for the setting.

[0027] <Modification> Note that the illuminance detection may be performed by the image sensor 3 instead of the illuminance sensor 5. In this case, the illuminance detection can be performed by detecting the brightness of the target area from the captured image and calculating the relative illuminance from the reference illuminance.

[0028] FIG. 2 is a block diagram showing a detailed configuration example of the control system 100 according to the first embodiment of the present disclosure. The wired communication unit 11 of the controller 1 is a unit that communicates with terminal devices such as the lighting fixtures 2 and the image sensor 3. The calculation unit 16 is a unit that performs main calculation processing for lighting control and the above-mentioned operation device lighting control. The date and time information management unit 12 is a unit that executes schedule control processing, which will be described later. The upper communication unit 14 is a unit that communicates with a higher-level system that sends control commands to the controller 1. The storage unit 15 is a unit that saves various setting contents. Information stored in the storage unit 15 includes the address number assigned to the lighting fixtures 2, the group number, the address number of the operation device 4, and the maximum time for the screen lighting hold time, which will be described later. The infrared communication unit 13 is a unit that communicates with the setting unit 6. Note that, when the setting unit 6 is connected to the controller 1 by a wired communication line, the infrared communication unit 13 may not be required.

[0029] In controlling the operation device lighting, the wired communication unit 11 of the controller 1 executes a process of receiving detection information of a person from the image sensor 3 (hereinafter referred to as a receiving process). Furthermore, when the detection information indicates the movement of a person in the installation area of ​​the operation device 4, the calculation unit 16 executes a process of lighting the operation screen of the operation device 4 (hereinafter referred to as a screen lighting process). Furthermore, the wired communication unit 11 transmits an operation screen lighting command to the operation device 4.

[0030] On the other hand, when the detection information indicates at least one of the presence or absence of a person in the installation area of ​​the controller 4, the calculation unit 16 executes a process of turning off the operation screen (hereinafter referred to as a screen turning off process). Furthermore, the wired communication unit 11 transmits an operation screen turning off command.

[0031] In this way, the controller 1 determines whether a person is moving, staying, or not in the installation area of ​​the controller 4 from the detection information of the image sensor 3, and controls the lighting of the controller based on the determination result.

[0032] However, after the controller 1 has determined the movement of a person from the detection information and turned on the operation screen of the controller 4, it will not send an operation screen turn-off command for a predetermined period of time and will keep the screen turned on even if the person detection information changes to staying or not. This makes it possible to prevent the operation screen of the controller 4 from frequently turning on and off even if people frequently enter the target area of ​​the image sensor 3 and the detection information frequently switches between moving and staying. This can eliminate concerns that users may feel uncomfortable.

[0033] The wired communication unit 21 of the lighting fixture 2 is a unit that communicates with the controller 1. The calculation unit 23 is a unit that performs calculation processing for communication and lighting control of the light source. The memory unit 22 is a unit that stores various setting values. The lighting control unit 25 is a unit that controls the lighting unit 26 based on the lighting control data received from the controller 1. The lighting unit 26 is a unit that includes a light source such as an LED. The infrared communication unit 24 is a unit that communicates with the setting device 6 and the like via infrared rays and exchanges control commands and setting information. Note that when the setting device 6 is connected via a wired communication line, the infrared communication unit 24 is not necessary. However, in order to set an address number or a group number to the lighting fixture 2 installed on the ceiling, it is desirable to install the infrared communication unit 24.

[0034] Lighting fixture 2 also has a separate power supply unit, and can be turned off by turning off the power. Lighting fixture 2 may also be equipped with a control unit that controls the LED drive power supply device based on the received lighting control data. In this case, the LED drive power supply device may receive the lighting control data.

[0035] The image detection unit 32 of the image sensor 3 is a unit that captures an image of the target area using a camera. The image analysis unit 33 is a unit that analyzes the captured image and detects people in the target area. If a change in the detection state of people in the target area is detected, the image analysis unit 33 notifies the controller 1 of the detection information via the wired communication unit 31. The memory unit 34 is a unit that stores various settings. The calculation unit 35 is a unit that performs communication and data processing. As the image sensor 3 is also installed on the ceiling, it is desirable to have an infrared communication unit 36 ​​so that various settings can be implemented.

[0036] The wired communication unit 41 of the operating device 4 is a unit that receives an operation screen turn-on command or an operation screen turn-off command from the controller 1. The display unit 42 is a unit that includes a display and a backlight, and displays buttons or characters, etc. The display control unit 43 is a unit that turns on and off the backlight of the display unit 42 based on the operation screen turn-on command or the operation screen turn-off command. Furthermore, the display control unit 43 controls the display contents. The input analysis unit 44 detects that the surface of the display has been touched. The calculation unit 45 performs processing for transmitting the control contents of the operating device 4 to the controller 1 based on information from the input analysis unit 44. Furthermore, the calculation unit 45 determines the display contents to be displayed on the display. The memory unit 46 stores various data and the current display state of the display.

[0037] The communication unit 61 of the setting device 6 is a part that performs infrared communication with the controller 1 or the terminal device. The communication of the communication unit 61 may be wired or wireless communication. The operation unit 62 is a keyboard of a personal computer, a button of a remote control, etc., which serves as an interface when the administrator performs the setting work. The display unit 63 is a display for confirming the operation contents or the monitor result, etc. The calculation unit 64 is a part that controls and converts the communication, operation, and display. The memory unit 65 is a part that stores the set data and the monitored data. Unless otherwise specified, the setting of the controller 1 and the terminal device described in this disclosure, and the monitoring of the current state can all be performed by the setting device 6.

[0038] As described above, in the control system 100 of the present disclosure, the controller 1 controls the lighting of the lighting device 2 and controls the operation of the operation device 4 based on detection information from the image sensor 3. This allows the operation screen to be turned on without the user having to operate the operation device 4.

[0039] As described above, in the method disclosed in Patent Document 1, when the operation screen is turned off after a certain period of no operation, if the user wishes to operate the device again, he or she must touch the screen of the controller 4 once to turn on the display. As a solution to this, there is a technology in which a human presence sensor is installed in the controller 4 itself, which detects the presence or absence of the user and automatically switches the backlight of the operation screen on and off. However, mounting a human presence sensor on the controller 4 increases costs. Furthermore, a typical pyroelectric sensor detects the movement of a person even when the person is far from the controller 4 as long as the person is within the detection range, which may result in the backlight being unnecessarily turned on.

[0040] In contrast, the control system 100 disclosed herein includes lighting fixtures 2 that switch their operating state depending on the presence or absence of people, and an image sensor 3 that detects people in a target area including the lighting fixtures 2. By using the detection information from the image sensor 3 to control the lighting of the operation screen of the controller 4, it becomes unnecessary to install a human sensor or the like just for the purpose of controlling the lighting of the operation screen of the controller 4.

[0041] Here, in a control system equipped with a human detection sensor such as the image sensor 3, the controller 1 controls the lighting before the user based on the detection information, so the user may use the operation device 4 infrequently. However, the user may use the operation device 4 when he / she wants to turn on the lighting device 2 before a person enters the target area of ​​the image sensor 3, or when he / she wants to immediately turn off the lighting device when the person leaves. As described above, the operation device 4 of the present disclosure is equipped with many functions such as collective operation for a group of multiple lighting devices 2, collective operation for multiple groups, and a schedule function. For these reasons, in the control system 100 of the present disclosure, even if the image sensor 3 is present, it is expected that the operation device 4 will be used frequently.

[0042] <Modification> As explained in FIG. 2, the controller 1 stores the address numbers and group numbers assigned to the lighting fixtures 2, and the address number of the controller 4. Using this, the controller 1 may perform controller lighting control and lighting control simultaneously. In this case, the controller 1 identifies the address number or group number of the lighting fixture 2 to be operated by the controller 4 from the address number of the controller 4 specified for controller lighting control. This makes it possible to issue a command for the target dimming rate individually to the lighting fixture 2 with the identified address number, or simultaneously to multiple lighting fixtures 2 included in the identified group number.

[0043] Also, in the description of FIG. 2, the image sensor 3 detects people entering the target area, people moving, staying and not being there, passing through, and the number of people. In addition to these, the direction of people's movement may be further detected. In this case, when the controller 1 determines from the detection information that a person has moved in the direction where the operation device 4 is installed, it performs a screen lighting process. On the other hand, when it determines that a person has moved in the direction where the operation device 4 is not installed, it performs a screen turning off process. As a result, when a person moves in a direction away from the operation device 4, the operation screen can be kept in an off state, and further energy saving can be achieved.

[0044] The direction of movement of a person in such a target area can be determined by the image sensor 3 by setting a two-dimensional coordinate system with an origin and an X-axis and a Y-axis having positive and negative directions in the captured image and identifying the position of the person.

[0045] 2 may further have a function of switching between enabled and disabled in conjunction with a clock function and a schedule function mounted on the controller 1. In this case, the administrator sets information on time periods such as early morning and night, and date information such as days of the week and holidays, in the controller 1. This makes it possible to prevent the operation screen of the controller 4 from lighting up due to erroneous detection by the image sensor 3 when no one is definitely present, such as at night or on holidays. This makes it possible to prevent unnecessary power consumption.

[0046] FIG. 3 is a plan view showing a target area of ​​the image sensor 3 according to the first embodiment of the present disclosure. Here, an image is shown in which the image sensor 3 is installed on the ceiling and captures an image in the direction of the floor surface with a built-in camera. In the case of an image sensor 3 with general performance, as shown in FIG. 3, a target area is a 7.2 m square on the floor surface. In the target area, the image sensor 3 detects a person at each detection point, with each detection point being a 0.9 m square. In FIG. 3, one side of the target area includes eight rows of detection points, and the target area includes a total of 64 detection points. Note that it may be possible to detect multiple human bodies within one detection point.

[0047] The image sensor 3 divides the 64 detection points contained in the target area into four blocks of 16 points each, and notifies the controller 1 of the detection information for each block.

[0048] Possible methods for detecting people include a method of detecting human movement within each detection point, or a method of detecting movement by detecting the transition of human stay information between adjacent detection points.

[0049] The image sensor 3 can simultaneously detect the states of multiple people in one block. Therefore, in one block, one person may be detected as staying and another person may be detected as moving. If the image sensor 3 detects a moving state at one detection point, it determines that a person in that block is moving and notifies the controller 1 of the detection information. This allows the controller 1 to light up the operation screen of the controller 4 in preparation for the possibility that a person detected as being in a moving state may operate the controller 4.

[0050] However, for the purpose of lighting control, it is more convenient to determine a stay as a stay when both stay and movement are detected within a block in order to maintain a high dimming rate. Therefore, in this case, it is preferable for the image sensor 3 to notify the controller 1 of detection information for lighting control and detection information for operating device lighting control separately.

[0051] In addition, the camera mounted on the image sensor 3 is equipped with a wide-angle lens and can capture a wide range. However, if detection of a wide range is not required, the unnecessary range can be set as a detection prohibited area to narrow down the target area. Furthermore, one side of the target area can be arbitrarily set to 6.4 m, 7.2 m, 9.0 m, etc.

[0052] In addition, since the imaging range of a camera differs depending on the height at which the camera is installed, by inputting the camera installation height as the initial setting when installing the camera, it is possible to adjust it so that a target area of ​​the desired size can be obtained. In addition, the height of the object detected by the image sensor 3, such as the floor surface, the desk surface, or the height of a person's head when seated, can be selected as 0.7 m, 1.2 m, etc.

[0053] The number of detection points included in each block, the combinations, detection-prohibited areas, camera settings, and the like can be set by the setting device 6.

[0054] As described above, the image sensor 3 of the present disclosure divides the target area into a plurality of blocks, and notifies the controller 1 of human detection information for each block.

[0055] <Modification> 3 illustrates a target area for an image sensor 3 with general performance. However, for an image sensor 3 with higher performance, a target area of, for example, 7.2 m square can be divided into a total of 256 points with 16 rows on each side for detection.

[0056] In FIG. 3, it has been described that the image sensor 3 separately notifies the controller 1 of detection information for lighting control and detection information for control of lighting of the operation device. However, instead of the detection information for control of lighting of the operation device, state data of absence, movement, and presence of a person before the determination may be notified. Alternatively, data directly instructing the controller 1 to turn on / off the operation device 4 may be notified. Alternatively, a flag indicating the state of a person may be added to the detection information for lighting control. In this way, the presence state is prioritized in the data for lighting control, and the movement state is prioritized in the data for control of lighting of the operation device, and when there is a change in either, the controller 1 can be notified.

[0057] Fig. 4 is a plan view showing the arrangement of the image sensor 3, lighting fixtures 2, and controller 4 according to the first embodiment of the present disclosure. In Fig. 4, the target area of ​​the image sensor 3 is divided into four blocks, and four lighting fixtures 2 are installed in each block. Note that if the performance of the image sensor 3 is high and the number of blocks can be increased, it is also possible to install one lighting fixture 2 in each block and perform more detailed lighting control for each block.

[0058] The four lighting fixtures 2 installed in one block are assigned the same group number. This makes it possible to control the lighting, such as turning on all four lighting fixtures 2 in that group at once, if a person is detected at even one of the 16 detection points in the target block.

[0059] In the first method for allocating group numbers to the lighting fixtures 2 installed in each block, the image sensor 3 allocates group numbers and transmits group information indicating the allocation together with the detection information for each block to the controller 1 each time. Note that if the controller 1 stores in advance the group number allocation information for the lighting fixtures 2 installed in each block, the image sensor 3 does not need to transmit the above-mentioned group information to the controller 1 each time, and it is sufficient to notify the controller 1 of the detection information for each block.

[0060] Alternatively, as a second method, the image sensor 3 does not assign groups, but only notifies the controller 1 of detection information in each block. In this case, the controller 1 manages the group assignment.

[0061] 4, the controller 4 is installed within the target area of ​​the image sensor 3. Information about the block in which the controller 4 is installed is set in the controller 1 by an administrator. The controller 1 stores the block in which the controller 4 is installed and the address of the controller 4. Note that the controller 4 does not necessarily have to be installed within the target area of ​​the image sensor 3, and may be installed on a wall close to the target area, for example.

[0062] As described above, the controller 1 of the present disclosure stores the area in which the controller 4 is installed as the controller 4 installation block.

[0063] <Modification> In FIG. 4, it has been described that the information on the block where the controller 4 is installed is set by the administrator. However, machine learning may be used to automatically identify the block where the controller 4 is installed. In this case, the controller 1 is provided with learning data for learning the installation location of the controller 4. Furthermore, the controller 1 executes a process for detecting that the controller 4 has been used, and an extraction process for extracting an area where human movement has been detected during a predetermined time until the controller 4 is used. Furthermore, the controller 1 executes a learning process for learning the area extracted by the extraction process into the learning data. This automatic identification function may be used to omit the initial setting of the block where the controller 4 is installed by the administrator. Alternatively, the initial setting may be performed by the administrator, and the range of the block where the controller 4 is installed may be optimized by narrowing the range by learning.

[0064] 4, it has been described that the target area of ​​the image sensor 3 is divided into a plurality of blocks, one group number is assigned to each block, and at least one block is set by the administrator as a block for installing the controller 4. However, in addition to the four blocks described in FIG. 4, a block dedicated to installing the controller 4 may be set.

[0065] In this system, an administrator selects multiple detection points from the target area of ​​the image sensor 3 and sets them as an installation block dedicated to the operation device 4. Note that the installation block dedicated to the operation device 4 may partially overlap with the four blocks for lighting control.

[0066] When the block for lighting control and the block for controlling the operation device are shared as in Figure 4, the range of the block for lighting control is wide, so the operation device 4 will be lit even if human movement is detected at a detection point distant from the operation device 4. In response to this, by providing an installation block dedicated to the operation device 4, the area related to the operation device lighting control can be minimized.

[0067] FIG. 5 is a flowchart of the operation device lighting control performed by the controller 1 according to the first embodiment of the present disclosure. First, the wired communication unit 11 of the controller 1 receives detection information from the image sensor 3 (step S01). The calculation unit 16 judges whether or not the block included in the received detection information is a block where the operation device 4 is installed (step S02). If the block is a block where the operation device 4 is installed, it is further judged whether or not the state of the person in the block is moving (step S03). If the state of the person is moving, there is a possibility that the person is operating the operation device 4. Therefore, the calculation unit 16 retrieves information on the address number of the operation device 4 from the storage unit 15 (step S04). Furthermore, an operation screen lighting command is transmitted to the operation device 4 via the wired communication unit 11 (step S05). Furthermore, the calculation unit 16 sets the management state of the block where the operation device 4 is installed to a moving state (step S06).

[0068] Furthermore, the calculation unit 16 judges whether or not there is a notification of detection information indicating the absence or presence of a person in the block where the controller 4 is installed from the image sensor 3 (step S07). If there is no notification, the calculation unit 16 continues management assuming that a person is moving in the block where the controller 4 is installed. On the other hand, if there is a notification from the image sensor 3 indicating that a person is absent or present in the installation block, the calculation unit 16 executes a measurement process to start counting the screen lighting retention time (step S08). Furthermore, it judges whether there is a notification of detection information indicating the movement of a person in the block where the controller 4 is installed before the screen lighting retention time has elapsed a predetermined time (step S09). If there is no notification and the screen lighting retention time has elapsed a predetermined time, the calculation unit 16 transmits an operation screen off command to the controller 4 via the wired communication unit 11 (step S10).

[0069] On the other hand, if a notification of a change to the moving state is received from the image sensor 3 before the predetermined time has elapsed after the start of counting the screen lighting retention time, the calculation unit 16 resets the count of the screen lighting retention time and changes the management state to the moving state (step S06).

[0070] On the other hand, if the state of the person in the installation block of the controller 4 is not moving in step S03, the controller 1 does not process the controller 4. This makes it possible to turn off the operation screen of the controller 4 when there is no person present, or when the person is sitting in a chair or standing still and working.

[0071] As described above using the flowcharts, the controller 1 of the present disclosure controls the illumination of the operating device.

[0072] <Modification> 5, it has been described that the controller 1 counts the screen illumination time. However, the image sensor 3 may manage the screen illumination time and notify the controller 1. Furthermore, since it is convenient to set the illumination time of the lighting device 2 for lighting control as well, the controller 1 may manage the illumination time for both lighting control and operation device illumination control.

[0073] As described above, according to the first embodiment of the present disclosure, it is possible to provide the control system 100 in which the user does not need to operate the controller 4 to light up the operation screen.

[0074] <Modification> The operating device 4 may be a remote control equipped with a display. Furthermore, the present invention can be similarly applied to wall switches that are generally used for lighting control, and power consumption can be reduced by controlling the lighting of LED lamps or the like that are mounted on the wall switch and indicate the operating state. This point is common to all of the following embodiments.

[0075] The image sensor 3 assumed for use in the present disclosure has been described as being capable of determining the entry of people into a target area, the movement of people, their stay and absence, passing, the number of people, and the like. Such detailed detection of a person's state is realized, for example, by using a camera such as a CMOS as an imaging element and performing detailed image processing on the captured image. From this point of view, the human detection method using the image sensor 3 assumed for use in the present disclosure is different from a general pyroelectric sensor that detects the temperature difference between an object and the background and detects the presence of a person by the movement of an object that serves as a heat source. However, the image sensor 3 may be one that can detect a person, and does not necessarily have to determine the entry of people, the movement of people, their stay and absence, passing, the number of people, and the like. A human detection device such as a pyroelectric sensor or a thermal image sensor may also be used. In this case, the controller 1 can also perform the above-mentioned control of turning on the operating device according to the human detection information.

[0076] Embodiment 2 6 is a block diagram showing a configuration example of a control system 200 according to a second embodiment of the present disclosure. The control system 200 has a configuration in which the controller 1 shown in the first embodiment and an image sensor 3 are integrated together. In this case, the controller 1 is installed on the ceiling. Note that since the image sensor 3 is often installed so as to be located at the center of the target area, it is desirable that the controller 1 is also installed in a similar location.

[0077] The configuration of the second embodiment can save the effort of installing the image sensor 3 and the cost of wiring. Furthermore, communication between the controller 1 and the image sensor 3 is not required, which can lead to a reduction in communication traffic. Note that, in the present embodiment as well, the communication means between the controller 1, the lighting fixtures 2, and the operation device 4 may be wired communication or wireless communication.

[0078] Embodiment 3 7 is a block diagram showing a configuration example of a control system 300 according to a third embodiment of the present disclosure. In the control system 300, the system configuration below the controller 1 is similar to that of the first or second embodiment. In the control system 300, a gateway device 7 is connected to the upper side of the controller 1. Furthermore, a central management device 8 is connected to the gateway device 7.

[0079] The gateway device 7 has a role of converting the communication method between the control system 300 and other systems, and can convert the communication method of the control system 300 into a communication method including an open standard such as BACnet.

[0080] The central management device 8 performs settings, operations, and status monitoring related to lighting control. By providing the central management device 8, it becomes possible to perform various settings performed by the setting device 6 in the first embodiment and various settings when performing the operation device lighting control from a higher-level system.

[0081] In the third embodiment of the present disclosure, detection information from the image sensor 3 is notified to the central management device 8. The central management device 8 manages the control system 300 as well as the air conditioning control system. The air conditioning control system includes air conditioners, an air conditioning controller 9, and an air conditioning remote control 10. The air conditioning controller 9 stores the address number of the air conditioning remote control 10 in association with information on the installation block. This makes it possible to realize lighting control of the operation screen of the air conditioning remote control 10, similar to the above-mentioned control of lighting of the operating device. [Explanation of symbols]

[0082] 1 controller, 2 lighting fixture, 3 image sensor, 4 operation unit, 5 illuminance sensor, 6 setting unit, 7 gateway device, 8 central management device, 9 air conditioning controller, 10 air conditioning remote control, 11 wired communication unit, 12 date and time information management unit, 13 infrared communication unit, 14 upper communication unit, 15 memory unit, 16 calculation unit, 21 wired communication unit, 22 memory unit, 23 calculation unit, 24 infrared communication unit, 25 lighting control unit, 26 lighting unit, 31 wired communication unit, 32 image detection unit, 33 image analysis unit, 34 memory unit, 35 calculation unit, 36 infrared communication unit, 41 wired communication unit, 42 display unit, 43 display control unit, 44 input analysis unit, 45 calculation unit, 46 memory unit, 61 communication unit, 62 operation unit, 63 display unit, 64 calculation unit, 65 Memory unit, 100 control system, 200 control system, 300 control system

Claims

1. A control system equipped with a device that switches the operating state depending on the presence or absence of people, an operating device having an operating screen for operating the device; a person detection device for detecting people in a target area including the device; Equipped with A process of receiving human detection information from the human detection device; a process of displaying a display related to operation of the device on the operation screen of the controller when the detection information indicates detection of a person in an installation area of ​​the controller; a control system configured to:

2. The control system according to claim 1 , further configured to execute a process of not displaying the operation screen when the detection information does not indicate the detection of a person in an installation area of ​​the controller.

3. In the process of not displaying the information, a measurement process for measuring time; a process of not displaying the information when new detection information indicating the detection of a person is not notified before the time measured by the measurement process exceeds a predetermined time; The control system of claim 2 , comprising:

4. The human detection device further detects the movement, presence, and absence of a person; the display process is executed when the detection information indicates a movement of a person in an installation area of ​​the controller; The control system according to claim 1 , wherein the process of not displaying the display is executed when the detection information indicates at least one of the presence or absence of a person in the installation area of ​​the controller.

5. The human detection device further detects a direction of movement of the human; When the detection information indicates a movement of a person in a direction in which the controller is installed, the display process is executed; The control system according to claim 4 , wherein when the detection information indicates movement of a person in a direction where the controller is not installed, a process of not displaying the display is executed.

6. The control system of claim 1 , wherein the device is a lighting fixture.

7. The control system of claim 1 , wherein the equipment is an air conditioning equipment.

8. The control system according to claim 1 , further comprising a process for disabling the process of causing the display depending on at least one of a date and a time.

9. Further, learning data for learning the installation location of the controller is provided, detecting that the controller has been used; an extraction process of extracting an area in which movement of a person is detected during a predetermined time period from a time before the operation device is used until the operation device is used; a learning process for learning the area extracted by the extraction process into the learning data; The control system of claim 1 further comprising:

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