JP7172641B2 - Control system and sensor device - Google Patents

Description

Embodiments of the present invention relate to control systems and sensor devices.

In general, a control system has a control device and one or more terminal devices, and the control device and one or more terminal devices are connected by a signal transmission path. A terminal device is a sensor device such as a human sensor or a controlled device such as a lighting device. For example, the control device receives a status signal or the like from a sensor device or the like via a transmission line. The control device transmits a control signal to the controlled device via the transmission line based on the received status signal and the like.

Terminal devices include a terminal device that performs a predetermined operation based on a received control signal, and a terminal device that has set values such as operating conditions and can change the set values. For example, when the terminal device is a sensor device, setting value information is stored in a storage unit such as a memory of the sensor device, and the setting value information can be changed.

The method of changing the setting value includes a method of using a setting switch such as a setting value setting DIP switch provided in the terminal device, and a method of transmitting control information for changing the setting value by infrared rays to a terminal device having an infrared receiving section. There is a method using an infrared remote controller, and the like.

However, when changing the setting value, the setting work is not easy when the position or place where the terminal device is installed is a high place in a building such as a warehouse. For example, in order to allow workers to work in high places, it is necessary to perform complicated work such as installing a stand or the like in a building on which workers can stand and switch setting switches. Also, when using an infrared remote control, there is a limit to the distance that the infrared signal can reach, and depending on the environment for sending and receiving the signal, it is necessary to avoid interference, etc. cumbersome work is required.

Furthermore, it is possible to provide the control device with a function to change the settings of the terminal device. Addition of a value setting change function, for example, addition of a software program is required, which is costly.

Japanese Unexamined Patent Application Publication No. 2010-232799

Therefore, the present embodiment provides a control system and a sensor device capable of transmitting a control signal for controlling the operation of a terminal device without requiring complicated work and adding functions to the control device. for the purpose.

The embodiment control system includes a control device, a first terminal device, and a second terminal device, which are connected to each other via a transmission line 5. Communication is possible between the device and the second terminal device. The first terminal device includes identification information of the second terminal device and control information for controlling the operation of the second terminal device in a data portion of a transmission message, and transmits the information via the transmission path. Output to the control device. A second terminal device monitors the transmission line, determines whether the identification information is included in the data portion of the transmission message transmitted over the transmission line, and determines whether the identification information is included in the data portion. When it is included, the processing is performed using the control information in the data portion, and when the identification information is not included in the data portion of the transmission message, the control information in the data portion is used. Do not perform any processing.

Therefore, according to the present embodiment, a control system and a sensor device capable of transmitting a control signal for controlling the operation of a terminal device without requiring complicated work and adding functions to the control device are provided. can provide.

1 is a configuration diagram of a lighting control system according to this embodiment; FIG. It is a block diagram which shows the structure of the setting device concerning this embodiment. It is a block diagram which shows the structure of the human sensitive sensor concerning this embodiment. It is a figure which shows the example of the display screen of a setting device when changing the setting value of a human sensitive sensor concerning this embodiment. 7 is a flowchart showing an example of the flow of processing for changing set values of a human sensor according to the present embodiment; FIG. 4 is a diagram showing the structure of a transmission message transmitted to a transmission line by transmission processing according to the embodiment; 7 is a flowchart showing an example of the flow of setting value change processing in a human sensor according to the present embodiment;

A control system according to the present embodiment includes a control device, a first terminal device, and a second terminal device, which are connected to each other via a transmission line. A control system in which communication is possible between a control device and a second terminal device, wherein the first terminal device controls identification information of the second terminal device and the operation of the second terminal device Control information is included in a data portion of a transmission message and output to the control device via the transmission line, and the second terminal device monitors the transmission line and is transmitted to the transmission line. determining whether the identification information is included in the data portion of the transmission message, and if the identification information is included in the data portion, performing processing using the control information in the data portion; When the identification information is not included in the data portion of the transmission message, no processing using the control information in the data portion is performed.

Embodiments will be described below with reference to the drawings.
(Constitution)
FIG. 1 is a configuration diagram of a lighting control system according to this embodiment. A control system 1 of the present embodiment is a lighting control system that includes a control device 2 and a plurality of lighting devices 3 that are terminal devices to be controlled. Each lighting device 3 is connected to a flasher 4, which is a terminal device, via a signal line 4a. Each lighting device 3 performs an ON/OFF operation according to a drive signal from a blinker 4 connected to a power source 4b. The control device 2 and the flasher 4 are connected by a transmission line 5 so as to be able to communicate with each other.

Control system 1 further includes wall switch 6 and occupancy sensor 7 . A wall switch 6 and a human sensor 7 are also connected to the transmission line 5 . A wall switch 6, which is a terminal device, is attached to the wall of the living room and has a plurality of operation buttons (not shown). A user of the living room can turn on/off a desired lighting device 3 by operating each operation button.
When the operation button is operated, the wall switch 6 transmits an operation signal to the control device 2 according to the operation of the operated operation button. An operation signal is transmitted from the wall switch 6 to the control device 2 via the transmission line 5 . That is, the control system 1 includes a control device 2 and a plurality of terminal devices that are connected to each other via transmission lines 5 . The control device 2 can communicate with each terminal device. Here, communication is not possible between a plurality of terminal devices, and communication is performed only between the control device 2 and each terminal device.

The control device 2 transmits a control signal for one or more lighting devices 3 specified in the received operation signal to the flicker 4 via the transmission line 5 . The flasher 4 has a plurality of relay circuits, and outputs an ON or OFF drive signal to one or more designated lighting devices 3 based on the control signal.

The human sensor 7, which is a terminal device, is a sensor device that detects the presence or absence of a person based on infrared rays emitted by the person. The human sensor 7 has a storage device 22 (FIG. 3) that stores set values such as operating conditions. Here, the retention time TS is stored in the storage device 22 of the human sensor 7 as the set value. When the human sensor 7 detects a change in the output signal of the infrared detector, that is, detects a person, it transmits a detection signal to the control device 2 via the transmission line 5 for a set holding time TS. In other words, the retention time TS is the time during which the detection signal is continuously output or the time during which the detection signal output by the human sensor is retained after the change in infrared light is detected. In other words, the holding time TS is control information and information about the operating conditions of the human sensor 7 . Then, the control device 2 controls at least one of the lighting devices 3 based on the received detection signal.

For example, a plurality of lighting devices 3 are installed on the ceiling of a living room, and the user can turn on or turn off a desired lighting device 3 by operating the wall switch 6 . In addition, a human sensor 7 is installed on the ceiling of a predetermined area in the living room. The lighting device 3 in the area is turned on, and when there is no one in the area, the lighting device 3 in the area is turned off.

A setter 8 can be connected to the wall switch 6 . The setting device 8 has a display device 8a and an operation device 8b. The operation device 8b includes a plurality of operation buttons. A cable 8 c extends from the setter 8 . The cable 8c has a connector 8d connectable to the connector 6a of the wall switch 6 at its tip.
That is, the wall switch 6 is a switch device that is connected to the transmission line 5 and has an operation unit 8b as an operation unit for instructing the operation of at least one of the plurality of lighting devices 3 . A setting device 8 as a terminal device can be connected to the wall switch 6, and can transmit transmission messages via the wall switch 6, as will be described later.

A person who manages the control system 1 can connect the setting device 8 to the wall switch 6 via the connector 8 d to check the operation and setting contents of the wall switch 6 and communicate with the control device 2 . Here, the setting device 8 and the wall switch 6 are communicably connected via a cable 8c, but may be connected communicatively wirelessly using infrared rays or the like.

Although the control system 1 has one human sensor 7 in FIG. 1 for the sake of simplicity of explanation, it may have a plurality of human sensors as indicated by dotted lines. Furthermore, the control system 1 may control a plurality of lighting devices 3 in a plurality of living rooms such as a building, in which case the wall switch 6 and the motion sensor 7 are arranged for each living room.

FIG. 2 is a block diagram showing the configuration of the setting device 8. As shown in FIG. The setting device 8 has a processor 11, a storage device 12, and a communication interface 13, and also has the above-described display device 8a and operation device 8b. Each of the display device 8a and the operation device 8b is connected to the processor 11 via an interface (not shown).

The processor 11 includes a central processing unit (CPU) and can execute various programs stored in the storage device 12 . The storage device 12 also stores a change program 12a for changing the set values of the human sensor 7, which will be described later. Note that the processor 11 may be configured by an electronic circuit such as an FPGA (Field Programmable Gate Array).

The setting device 8 can transmit data to the transmission line 5 and receive data from the transmission line 5 via a communication interface (hereinafter abbreviated as communication I/F) 13 connected to the cable 8c. . Depending on various programs, the display 8a displays various information or displays a screen for inputting various data.

FIG. 3 is a block diagram showing the configuration of the human sensor 7. As shown in FIG. The human sensor 7 has a processor 21 , a storage device 22 , a detection element 23 and a communication I/F 24 . The detection element 23 is, for example, a pyroelectric sensor that detects infrared rays, and is connected to the processor 21 via an interface (not shown).

Like the processor 11 , the processor 21 includes a central processing unit (CPU) and can execute various programs stored in the storage device 22 . The storage device 22 has a storage area 22a for storing information on the retention time TS. Note that the processor 21 may be configured by an electronic circuit such as an FPGA (Field Programmable Gate Array).

The human sensor 7 can transmit data to the transmission line 5 and receive data from the transmission line 5 via the communication I/F 24 connectable to the transmission line 5 . The human sensor 7 detects a change in the infrared rays detected by the detection element 23, and when there is a change in the amount of the detected infrared rays, it outputs a detection signal through the transmission line 5 for the set holding time TS. Send to the control device 2 . When there is no change in the amount of detected infrared rays, the human sensor 7 stops transmitting the detection signal when the retention time TS has elapsed since the last change in the amount of infrared rays.

FIG. 4 is a diagram showing an example of the display screen of the setting device 8 when changing the set value of the human sensor 7. As shown in FIG. The screen shown in FIG. 4 is a set value change screen G displayed on the display screen of the display 8a of the setting device 8. As shown in FIG. The setting value change screen G has two input fields 31 and 32 for inputting the sensor number SN and the holding time TS.

The operator who operates the setting device 8 operates the operating device 8b to move the cursor to the input field 31 and input the sensor number SN of the human sensor 7 whose set value is to be changed. can be entered. Further, the operator operates the operating device 8b to move the cursor to the input field 32, and inputs the changed holding time TS by operating the operating device 8b. In the set value change screen G of FIG. 4, the sensor number SN is "001" and the retention time TS is "5" (seconds). The sensor number SN is identification information of a terminal device used in the control system 1, such as an identification code (ID) or address data.

After inputting the sensor number SN and the retention time TS, the operator operates the operation unit 8b via the wall switch 6 to transmit the input sensor number SN and the retention time TS information to the control device 2. can be done.

FIG. 5 is a flowchart showing an example of the flow of processing for changing the set value of the human sensor 7. As shown in FIG. FIG. 5 is executed in the setter 8. FIG. When the operator of the setting device 8 operates the operation device 8b to input an instruction to execute a change processing program for changing the setting value of the human sensor 7, the processor 11 changes the setting value shown in FIG. The processing program is read from the storage area 12a of the storage device 12 and executed.

The processor 11 generates a set value change screen G (FIG. 4) for changing set values and displays it on the display 8a (step (hereinafter abbreviated as S) 1). The operator can operate the operation device 8b to input the information of the sensor number SN and the retention time TS on the displayed set value change screen G. FIG.

Unless the operator operates the operation device 8b to instruct transmission of the input information, the process returns to S1, and the operator inputs or changes information on the sensor number SN and the retention time TS. be able to. When the operator operates the operation device 8b to input an instruction to transmit the input information to the setting device 8, the processor 11 transmits the input sensor number SN and retention time TS information to the control device 2 ( S3), the process of changing the set value is terminated. That is, the setter 8 as a terminal device holds a sensor number SN as identification information of the human sensor 7 as another terminal device and set value information as control information for controlling the operation of the human sensor 7. Information on the time TS is included in the data portion 43 of the transmission message and output to the control device 2 via the transmission line 5 .

FIG. 6 is a diagram showing the configuration of the transmission message transmitted to the transmission line 5 by the process of S3. A transmission message 41 is a message transmitted and received on the transmission line 5 and has a predetermined format. The transmission message 41 includes a source address, a destination address, a control command signal, and the like. Data can be transmitted and received between the control device 2, the flasher 4, the wall switch 6, and the human sensor 7 using transmission messages in a predetermined format.

The transmission message 41 also includes a header portion, a source address, etc., but FIG. 6 shows only the destination address portion 42 and the data portion 43, and other data are not shown. In the transmission message 41, the destination address part 42 is a field containing information of the destination address (ADD) of the other party to which the transmission message 41 is sent. The data part 43 is a field containing information (DATA) of the sensor number SN and the holding time TS that are input on the set value change screen G. FIG.

For example, when a user presses an operation button on the wall switch 6 to turn on a lighting device 3, the wall switch 6 transmits a transmission message including a command signal according to the user's operation to the control device 2. do. The transmission message 41 at that time contains the address of the control device 2 in the destination address section 42 and the command signal for turning on the illumination device 3 specified by the user in the data section 43 . Upon receiving the self-addressed transmission message 41 , the control device 2 performs processing according to the command signal included in the data section 43 . In the above case, a command signal for turning on the lighting device 3 is generated and sent to the blinker 4 .

As described above, the transmission message 41 on the transmission path 5 includes the destination address portion 42 containing the destination address and the data portion 43 containing the command signal and the like. Each device connected to the transmission path 5 can determine whether the transmission message 41 is addressed to itself based on the destination address. Each device executes processing based on the data contained in the data section 43 when the received transmission message is addressed to itself. In other words, not only the control device 2 but also each device such as the flicker 4, the wall switch 6, the human sensor 7, etc. ignores the transmission message 41 when the received transmission message is not addressed to itself. process is not executed.

Further, here, the format of the data portion 43 of the transmission message 41 is determined in advance so as to cause the human sensor 7 to perform a predetermined operation based on control information in the data portion 43 of the transmission message 41, which will be described later. That is, identification information for identifying the human sensor 7 (for example, the sensor number SN of the human sensor 7) is arranged at a predetermined position in the data section 43 in order to cause the human sensor 7 to change the setting value. , the set value information of the set value to be changed is also arranged at another predetermined position in the data section 43 .

Therefore, even when the received transmission message is not addressed to itself, the human sensor 7 determines the presence or absence of its own identification information (for example, the sensor number SN of the human sensor 7) in the data section 43. be able to. Furthermore, even when the received transmission message is not addressed to itself, the human detection sensor 7 extracts the set value information from the data section 43 when the data section 43 contains its own identification information. You can also

Here, when the set value of the human sensor 7 is changed, the destination address in the transmission message generated by the setting device 8 is the address of the control device 2, but the transmission message is one specific address. A format such as broadcast that does not specify is also acceptable.

FIG. 7 is a flow chart showing an example of the flow of setting value change processing in the human sensor 7. As shown in FIG. As described above, when the human sensor 7 detects a person, it transmits a detection signal to the control device 2 via the transmission line 5. The process of FIG. It is always running during operation of the sensor 7 . Therefore, the processor 21 constantly monitors transmission messages being transmitted on the transmission line 5 .

Processor 21 determines whether the message received via transmission path 5 is a transmission message addressed to itself (S11). Whether the transmission message is self-addressed is determined based on the destination address included in the transmission message. Depending on whether the destination address matches the address of the human sensor 7, it is determined whether or not the message is addressed to itself.

When the destination address matches the address of the human sensor 7 (S11: YES), the received message is a transmission message addressed to itself. S12), the process returns to S11.

When the destination address does not match the address of the human sensor 7 (S11: NO), the processor 21 determines whether the data portion 43 in the received transmission message includes its own sensor number SN (S13). That is, the process of S13 executed by the processor 21 constitutes a determination unit that monitors the transmission line 5 and determines whether the data portion 43 of the transmission message transmitted over the transmission line 5 includes the self identification information. do.

As described above, when the setting device 8 transmits a transmission message for changing the set value of the human sensor 7 to the control device 2 via the wall switch 6 (S3), the destination address section 42 of the transmission message 41 is: Since the address of the control device 2 is set in , the transmission message 41 is transmitted from the setting device 8 to the control device 2 via the wall switch 6 . Although the control device 2 receives the transmission message 41, it does not contain an instruction to instruct the execution of some processing in itself, so the control device 2 does nothing.

However, when the human sensor 7 determines that the data section 43 includes its own sensor number SN (S13: YES), the processor 21 stores the setting value included in the data section 43 in the storage area of the storage device 22. An operation of rewriting the information of the holding time TS stored in 22a is performed (S14). After S14, the process returns to S11. If it is determined that the data section 43 does not contain the self sensor number SN (S13: NO), the process returns to S11.
Therefore, in the processing of S11, S13 and S14, when the self identification information is included in the data portion 43, the processing using the control information in the data portion 43 is performed (S14), and the self identification information is included in the data portion. 43, a processing execution unit that does not perform processing using the control information is configured.

As described above, the human sensor 7 as a terminal device monitors the transmission line 5, determines whether or not the data part 43 of the transmission message transmitted over the transmission line 5 contains its own identification information, is included in the data portion 43, processing is performed using the control information in the data portion 43, and if the self identification information is not included in the data portion 43 of the transmission message, the data portion The processing using the control information in 43 is not performed.
Therefore, by inputting the sensor number SN and the set value from a predetermined screen in the setter 8, the set value of the human sensor 7 can be changed.

Therefore, according to the above-described embodiment, it is possible to transmit the control signal for controlling the operation of the terminal device without requiring complicated work unlike the conventional art and without adding functions to the control device. A control system and sensor device can be provided.

In particular, as in the above-described embodiment, the setter 8 can transmit the setting value to the human sensor 7 without directly communicating with the human sensor 7, and as a result, the human sensor 7 can can be changed.

Therefore, for example, when a sensor device is added to an already installed transmission line, if the sensor device is provided with the above-described processing function of FIG. be able to.

The control system 1 of the above-described embodiment is a lighting control system that uses the human sensor 7 as a sensor device and changes the setting value of the human sensor 7. type of sensor device. For example, when the sensor device is an illuminance sensor, information on the calibration value of the illuminance sensor can be similarly transmitted from the setting device 8 to the illuminance sensor to change the set value. Further, the set value of the flasher 4 as a terminal device may be similarly transmitted from the setting device 8 to the flasher 4 to change the set value.

Furthermore, although the control system described above is a lighting control system, the embodiments described above can also be applied to building air conditioning control systems, as well as other systems.

In the above-described embodiment, the setting device 8 is connected to the wall switch 6 and the setting device 8 transmits the transmission message via the wall switch 6. It may have a value change function. For example, the wall switch 6 has, as one of its functions, a function of transmitting a transmission message for changing the set value to the human sensor 7 described above, and the wall switch 6 can It may also be possible to transmit a transmission message for changing setting values.

Furthermore, in the above-described embodiment, the sensor device as a terminal device is caused to change its set value, but the terminal device may be caused to perform other operations. For example, if the terminal device is an additional lighting device, the setting device 8 may turn on/off the lighting device.

While several embodiments of the invention have been described, these embodiments have been illustrated by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

1 control system, 2 control device, 3 lighting device, 4 blinker, 4a signal line, 4b power supply, 5 transmission line, 6 wall switch, 6a connector, 7 human sensor, 8 setting device, 8a display device, 8b operation device , 8c cable, 8d connector, 11 processor, 12 storage device, 12a change program, 13 communication interface, 21 processor, 22 storage device, 22a storage area, 23 detection element, 24 communication interface, 31 input field, 32 input field, 41 Transmission message, 42 destination address part, 43 data part.

Claims (2)

a control device, a first terminal device, and a second terminal device, which are connected to each other via a transmission line; A control system capable of communicating between terminal devices,
The first terminal device includes identification information of the second terminal device and control information for controlling the operation of the second terminal device in a data portion of a transmission message, and transmits the information via the transmission line. Output to the control device,
The second terminal device monitors the transmission line, determines whether or not the identification information is included in the data portion of the transmission message transmitted over the transmission line, and determines whether the identification information is included in the data portion. When the identification information is not included in the data portion of the transmission message, the control information in the data portion is processed using the control information in the data portion. do not process using
control system. A sensor device connectable to a transmission line to which a terminal device and a control device are connected ,
a determination unit that monitors the transmission path and determines whether a data portion of a transmission message output from the terminal device to the control device includes its own identification information;
When the self identification information is included in the data portion, processing using the control information in the data portion is performed, and when the self identification information is not included in the data portion, the control processing is performed. a processing execution unit that does not perform processing using information;
A sensor device.

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