JP7035792B2 - Lighting control system - Google Patents

Description

The present invention relates to a lighting control system.

Patent Document 1 discloses a remote monitoring and control system in which a transmission processing device transmits control data to a terminal and controls a load connected to the terminal. This remote monitoring and control system includes a transmission error detecting means for detecting the occurrence of a transmission error and counting the number of occurrences thereof, and a transmission error occurrence frequency displaying means for displaying the occurrence frequency according to the number of occurrences of the transmission error.

Japanese Unexamined Patent Publication No. 8-205255

In the remote monitoring and control system described in Patent Document 1, the user can grasp the frequency of transmission error, but cannot grasp the content of the transmission error. Therefore, it may take time to identify the cause of the error. Further, in Patent Document 1, the error notified to the user is limited to the transmission error. Therefore, the user may not be able to grasp the error that occurred in each device in the system.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a lighting control system in which a user can easily know information on an error generated in the system.

The lighting control system according to the first disclosure includes a terminal that controls the operation of a load and a controller that communicates with the terminal and causes the terminal to control the operation of the load. The type of error is stored, and if the transmission signal received from the controller has an abnormality, it is determined which of the error types the abnormality corresponds to, the determination result is transmitted to the controller, and the terminal is used. Stores the importance of the error for each type of the error, and the determination result includes information on the importance of the abnormality .
The lighting control system according to the second disclosure includes a terminal that controls the operation of the load and a controller that communicates with the terminal and causes the terminal to control the operation of the load. The type of error is stored, and if the transmission signal received from the controller has an abnormality, it is determined which of the error types the abnormality corresponds to, the determination result is transmitted to the controller, and the terminal is used. Is characterized in that a plurality of the determination results are stored with serial numbers in the order in which the abnormality occurs.
The lighting control system according to the third disclosure includes a terminal that controls the operation of the load and a controller that communicates with the terminal and causes the terminal to control the operation of the load. The type of error is stored, and if the transmission signal received from the controller has an abnormality, it is determined which of the error types the abnormality corresponds to, and the determination result is transmitted to the controller, and the controller receives the determination result. A management device and a lighting controller that sends a command requesting the determination result to the terminal in response to an instruction from the management device, and the terminal sends the determination result in response to the command. The determination result is transmitted to the lighting controller, and the determination result includes information on the importance of the abnormality, and the lighting controller transmits only the determination result having the higher importance among the determination results received from the terminal to the management device. do.

In the lighting control system according to the present invention, the terminal determines the type of abnormality and transmits the determination result to the lighting controller. Therefore, the user can easily know the information of the error generated in the system.

It is a circuit block diagram of the lighting control system which concerns on Embodiment 1. FIG. It is a functional block diagram of the terminal device which concerns on Embodiment 1. FIG. It is a hardware block diagram of the terminal which concerns on Embodiment 1. FIG. It is a figure which shows the communication sequence in which the terminal which concerns on Embodiment 1 stores an error log. It is a figure which shows the communication sequence which the management apparatus which concerns on Embodiment 2 reads an error log. It is a figure which shows the communication sequence which the remote control which concerns on Embodiment 3 reads an error log. It is a figure which shows the communication sequence which the management apparatus which concerns on Embodiment 4 saves an error log.

The lighting 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 circuit block diagram of the lighting control system 80 according to the first embodiment. The lighting control system 80 includes a management device 1, a lighting controller 20, and a plurality of terminals 30a to 30c. The management device 1 includes, for example, a personal computer. The management device 1 monitors and sets the state of the entire lighting control system 80. The management device 1 and the lighting controller 20 are connected to each other via a LAN (Local Area Network) 8 which is a wired or wireless communication network. LAN is, for example, Ethernet®.

The lighting controller 20 communicates with terminals 30a to 30c, a wall switch (not shown), various sensors, and the like via the communication line 7. Three terminals 30a to 30c are connected to the lighting controller 20 via a communication line 7 connected by a crossover wiring. The number of terminals connected to the lighting controller 20 may be one or more. The lighting controller 20 transmits and receives a transmission signal to and from a device connected via the communication line 7. The transmitted signal includes, for example, address data and control data.

Unique addresses are assigned to the terminals 30a to 30c. The terminals 30a to 30c are identified by the set address. A plurality of loads 40 are connected to each of the terminals 30a to 30c. In FIG. 1, a part of the load 40 is omitted. The load 40 is, for example, a lighting fixture. The terminals 30a to 30c control the operation of the load 40. Further, the terminals 30a to 30c may communicate with the remote controller 4 by infrared communication 9.

In the present embodiment, the management device 1 and the lighting controller 20 communicate with the terminals 30a to 30c, and cause the terminals 30a to 30c to control the operation of the load 40.

FIG. 2 is a functional block diagram of the terminal device 30a according to the first embodiment. FIG. 3 is a hardware configuration diagram of the terminal 30a according to the first embodiment. Here, the configuration of the terminal 30a will be described, but the configurations of the terminals 30b and 30c are the same as those of the terminal 30a. As shown in FIG. 2, the terminal 30a includes a storage unit 31, a communication unit 32, a comparison unit 33, and an analysis unit 34. The storage unit 31 corresponds to the memory in FIG.

The storage unit 31 is a non-volatile memory such as a flash memory. The storage unit 31 stores the address of the terminal 30a, an error log, and the like. The communication unit 32 receives the transmission signal transmitted by the lighting controller 20 via the communication line 7. Further, the communication unit 32 transmits information such as an error log to the lighting controller 20 via the communication line 7.

The comparison unit 33 compares the address data of the transmission signal with the address of the terminal 30a. When the comparison unit 33 determines that the address data of the transmission signal and the address set in the terminal 30a match, the terminal 30a executes the control data of the transmission signal. Here, the terminal 30a includes a load control unit (not shown) that controls the load 40 according to the control data. The load control unit includes, for example, a relay that changes the connection state between the load 40 and the power supply.

As will be described later, the analysis unit 34 determines whether or not the transmission signal has an abnormality. Further, when the transmission signal has an abnormality, the analysis unit 34 determines the type of abnormality in the transmission signal.

The functions of the communication unit 32, the comparison unit 33, and the analysis unit 34 are realized by a control device such as a processor shown in FIG. The control device may be dedicated hardware. Further, the control device may be a CPU (Central Processing Unit) that executes a program stored in the memory. The CPU is also called a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, a processor, or a DSP.

When the control device is dedicated hardware, the control device may be, for example, a single circuit, a composite circuit, a programmed processor, or a parallel programmed processor. Further, the control device may be an ASIC (Application Specific Integrated Circuit) or an FPGA (Field-Programmable Gate Array). Further, the control device may be a combination of these. Further, the functions of the communication unit 32, the comparison unit 33, and the analysis unit 34 may be realized by the control circuit. Further, the functions of each part may be collectively realized by the control device.

When the control device is a CPU, the functions of the communication unit 32, the comparison unit 33, and the analysis unit 34 are realized by software, firmware, or a combination of software and firmware. Software and firmware are written as programs and stored in memory. The control device realizes the functions of each part by reading and executing the program stored in the memory.

That is, the memory stores a program that determines whether or not the transmission signal has an abnormality, determines the type of abnormality in the transmission signal when the transmission signal has an abnormality, and transmits the determination result to the lighting controller 20. .. It can be said that these programs cause a computer to execute the procedures or methods of the storage unit 31, the communication unit 32, the comparison unit 33, and the analysis unit 34.

Here, the memory may be a non-volatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD, or the like. RAM is an abbreviation for Random Access Memory. ROM is an abbreviation for Read Only Memory. EPROM is an abbreviation for Erasable Programmable Read Only Memory. EEPROM is an abbreviation for Electrically Erasable Programmable Read-Only Memory.

It should be noted that some of the functions of the communication unit 32, the comparison unit 33, and the analysis unit 34 may be realized by dedicated hardware, and some may be realized by software or firmware. For example, the communication unit 32 and the comparison unit 33 are realized by a control device as dedicated hardware, and the analysis unit 34 is functioned by the control device reading and executing a program stored in the memory. It is possible to achieve it.

In this way, the control device can realize each of the above-mentioned functions by hardware, software, firmware, or a combination thereof.

The transmission signal is, for example, a signal instructing a lighting fixture having a load of 40 to turn on or off. Not limited to this, the transmission signal may be a signal that gives a dimming command such as setting a dimming rate. Further, the transmission signal may be a signal for setting parameters in the terminals 30a to 30c. The parameter is, for example, a variable for controlling the load 40. The transmitted signal includes any signal transmitted and received between the lighting controller 20 and the terminals 30a to 30c.

FIG. 4 is a diagram showing a communication sequence in which the terminal 30a according to the first embodiment stores an error log. Here, the operation of the terminal 30a will be described, but the operation of the terminals 30b and 30c is also the same. In FIG. 4, the operation of the comparison unit 33 is omitted for convenience.

It is assumed that the transmission signal is transmitted from the lighting controller 20 to the terminal 30a. Here, it is assumed that the setting command is transmitted as a transmission signal. The setting command is a command for registering the setting parameters in the terminal 30a, and has the setting parameters in the data area. The setting parameter is, for example, a parameter for controlling the load 40, a parameter indicating a control group, or the like.

As shown in step S1, the analysis unit 34 performs command analysis of the setting command. At this time, the analysis unit 34 analyzes, for example, the type of received command. The terminal 30a may store a command that can be processed in the storage unit 31. If the received command is not included in the commands that can be processed, the analysis unit 34 may determine that the transmission signal has an abnormality. Here, the command analysis determines that the received command is a setting command.

Next, as shown in step S2, the analysis unit 34 determines whether or not there is an abnormality in the setting parameter. The terminal 30a may store the normal value of the parameter in the storage unit 31. The analysis unit 34 compares the normal value of the parameter with the received setting parameter. The analysis unit 34 may determine that the transmission signal has an abnormality when the received setting parameter is out of the range of the normal value.

If there is no abnormality in the setting parameters, the analysis unit 34 stores the setting parameters in the setting data area of the storage unit 31 as shown in step S3.

Next, the case where there is an abnormality in the setting parameter will be described. The error table shown in Table 1 is stored in the storage unit 31 of the terminal 30a. That is, the terminal 30a stores the type of error.

The error table includes an abnormality included in the transmission signal and an abnormality occurring in the terminal 30a. The categories of microcomputer errors include IWDT (Independent Watchdog Timer) underflow, program anomaly detection, refresh errors, and RAM errors. These are errors that occur in the microcomputer included in the terminal 30a.

A communication error indicates an abnormality contained in a transmission signal. The checksum abnormality indicates that the checksum transmitted from the lighting controller 20 does not match the value calculated from the transmission signal. The non-compliant command indicates that the transmitted signal includes a command that does not correspond to the terminal 30a. A parameter error indicates that the parameter included in the transmission signal has an abnormal value. The parameter abnormality includes the case where the setting parameter is character string data, symbol data, or the like and is not a numerical value. Further, the parameter abnormality includes the case where the setting parameter is larger than the upper limit or smaller than the lower limit of the numerical value.

The Flash access error category includes a read failure from the storage unit 31 or a write failure to the storage unit 31. The electrical abnormality indicates that a short circuit has been detected in the terminal 30a. Restoration indicates that the terminal 30a has been restarted due to a power failure or the like. The category of receiving initialization commands includes cold start and hot start. A cold start indicates that the hardware has been restarted from the initialized state. A hot start indicates that the relay was turned on immediately after it was turned off. The system down category includes the occurrence of an invalid vector interrupt and other reasons. Other categories include memory allocation failures and SRAM errors.

Further, as shown in Table 1, each abnormality type corresponds to 2 bytes of data. Further, as shown in the ranks of Table 1, the terminal 30a stores the importance of the error for each type of error.

As shown in Table 2, the error rank, which is the severity of the error, is classified into, for example, three stages. The low, medium, and high ranks correspond to the normal level, warning level, and abnormal level, respectively. The low, medium, and high ranks correspond to 1 byte of data each. Not limited to this, the error rank may be set to two or more stages.

When the transmission signal received from the lighting controller 20 has an abnormality, the analysis unit 34 determines the error type as shown in step S5. That is, the terminal 30a refers to the error table of the storage unit 31 and determines which of the error types in the error table the abnormality of the transmission signal corresponds to. Here, the abnormality of the transmission signal is determined to be a parameter abnormality of the communication error.

Next, as shown in step S6, the analysis unit 34 writes an error log, which is a determination result of an abnormality in the transmission signal, in the error log area of the storage unit 31. Table 3 shows the contents of the error log. The contents to be stored as an error log are, for example, a serial number, an error occurrence time, an error rank, an error type, and a immediately preceding event.

The serial number is a number assigned by the terminal 30a to a plurality of error logs in the order of error occurrence. That is, the terminal 30a stores a plurality of error logs with serial numbers in the order in which the abnormality occurs.

The abnormality occurrence time is stored in the storage unit 31 in the BCD (Binary Coded Decimal) format. Here, the management device 1 broadcasts a time setting command to the device in the lighting control system 80. The time setting command is a command that notifies the time. In the terminal 30a, clock adjustment is performed using the time simultaneously transmitted from the management device 1. This clocked time is used for the error log.

The immediately preceding event is an instruction processed by the terminal 30a immediately before the error occurs. Table 4 shows an example of the event that occurred immediately before. The immediately preceding event to be stored in the storage unit 31 as an error log may be stored, for example, in a predetermined number from the latest event. The predetermined number is, for example, three. The list of immediately preceding events shown in Table 4 is stored in the storage unit 31 of the terminal 30a.

After the process of step S6, the analysis unit 34 transmits the abnormal response shown in step S7 as a response command to the lighting controller 20. Further, when the step S3 is processed, the analysis unit 34 transmits the normal response shown in the step S4 to the lighting controller 20. The lighting controller 20 that has received the abnormal response or the normal response transmits the abnormal response or the normal response to the management device 1 via the LAN 8.

In the present embodiment, the device that has received the transmission signal having an error determines the type of abnormality that the transmission signal has, stores the error log that is the determination result in the storage unit 31, and transmits it to the controller. When the controller receives the determination result, the controller notifies the user of the determination result. This makes it easy for the user to know information about errors that have occurred in the system. The error log also contains detailed information about the error as shown in Table 3. Therefore, the cause of the error can be identified in a short time.

Further, in the present embodiment, the error log can be stored in the storage unit 31 of the device in which the error has occurred even for an error other than the communication error. The terminal 30a determines the type of abnormality that has occurred in the terminal 30a, and transmits the determination result to the lighting controller 20. Therefore, the user can grasp the error generated in each device in the system.

In addition, error logs are stored with serial numbers. Therefore, the user can refer to the past error log retroactively from the time when the abnormality occurred. Therefore, the user can more easily analyze the cause of the error.

The abnormality types shown in Table 1 and the immediately preceding events shown in Table 4 may differ depending on the device that stores these tables. The content of the error log shown in Table 3 is an example, and may be changed according to the usage status and the like.

These modifications can be appropriately applied to the lighting control system according to the following embodiments. Since the lighting 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. 5 is a diagram showing a communication sequence in which the management device 1 according to the second embodiment reads an error log. The management device 1 sends an error log monitor command. The error log monitor command is a command that requests an error log. The address of the device that acquires the error log is set in the destination address of the error log monitor command. In the data area of the error log monitor command, the serial number of the error log stored in the non-volatile memory of the device to be acquired is set.

The management device 1 sets the destination address to the terminal 30a, specifies the serial number to 0x00, and transmits an error log monitor command. The lighting controller 20 receives an error log monitor command via the LAN 8. The lighting controller 20 confirms that the destination address of the error log monitor command is the terminal 30a. Then, the lighting controller 20 retransmits the error log monitor command via the communication line 7.

The terminal 30a that has received the error log monitor command via the communication line 7 confirms that the serial number is 0x00. When the serial number is 0x00, that is, NULL, the device that has received the error log monitor command transmits the latest serial number stored in the storage unit 31 of the own device to the lighting controller 20.

Here, the analysis unit 34 of the terminal 30a acquires the latest serial number stored in the error log area of the storage unit 31, as shown in step S11. Next, the terminal 30a designates the management device 1 as the destination address and transmits the latest serial number response. Latest serial number The latest serial number is specified in the response data area. The lighting controller 20 that has received the latest serial number response via the communication line 7 confirms that the destination address is the management device 1, and retransmits the latest serial number response via the LAN 8.

The management device 1 that has received the latest serial number response via the LAN 8 confirms whether or not the received latest serial number is 0x00, as shown in step S12. When the latest serial number is 0x00, it means that the error log is not accumulated in the terminal 30a. Therefore, the management device 1 ends the error log acquisition operation as shown in step S13.

If the latest serial number is not 0x00, the management device 1 sets the latest serial number in the data area and sends an error log monitor command to the terminal 30a as shown in step S14. That is, the management device 1 sends a command requesting an error log corresponding to the latest serial number. Hereinafter, the case where the latest serial number is 0x02 will be described as an example.

The lighting controller 20 refers to the error log monitor command transmitted via the LAN 8. The lighting controller 20 confirms that the destination address of the received error log monitor is the terminal 30a, and retransmits the error log monitor via the communication line 7. That is, the lighting controller 20 transmits a command requesting an error log to the terminal 30a in response to an instruction from the management device 1.

The analysis unit 34 of the terminal 30a that has received the error log monitor via the communication line 7 confirms that the designated serial number is 0x02. Next, as shown in step S15, the analysis unit 34 acquires the error log corresponding to the serial number 0x02 specified by the error log monitor command from the storage unit 31.

Next, the analysis unit 34 of the terminal 30a designates the management device 1 as the destination address and transmits an error log monitor command response. The error log monitor command response includes the error log corresponding to the serial number specified in the error log monitor command. Here, the terminal 30a transmits an error log corresponding to the latest serial number in response to the error log monitor command.

The lighting controller 20 that has received the error log monitor command response via the communication line 7 confirms that the destination address is the management device 1, and retransmits the error log monitor command response via the LAN 8. That is, when the lighting controller 20 receives the error log, the lighting controller 20 transmits the error log to the management device 1.

The management device 1 that has received the error log monitor command response via the LAN 8 displays the error log on the screen as shown in step S16. Further, the management device 1 decrements the serial number as shown in step S17. As shown in step S18, the management device 1 confirms whether or not the serial number after decrementing is 0x00. When the serial number is 0x00, the management device 1 ends the error log acquisition operation as shown in step S19.

If the serial number is not 0x00, the management device 1 sets the decremented serial number in the data area of the error log monitor command, and sends the error log monitor command to the terminal 30a. The decremented serial number is 0x01. In this way, steps S15 to S20 are repeated, and the management device 1 acquires an error log.

In the present embodiment, when the management device 1 receives the error log corresponding to the first serial number among the serial numbers, the error log corresponding to the second serial number when the second serial number, which is one smaller than the first serial number and is larger than zero, is received. Is transmitted to the terminal 30a. The management device 1 does not send a command requesting an error log when the second serial number is zero. The terminal 30a transmits the error log corresponding to the second serial number to the lighting controller 20 in response to the command requesting the error log.

As a result, the terminal 30a transmits a plurality of error logs to the lighting controller 20 in order from the one having the largest serial number.

In this way, by using the serial number attached to the error log, the error log stored in the terminal 30a can be displayed on the management device 1 in order from the newest one. Therefore, error information can be easily managed. In addition, by using the error log monitor command, the user can obtain information that there is no error log even when no error has occurred.

Embodiment 3.
FIG. 6 is a diagram showing a communication sequence in which the remote controller 4 according to the third embodiment reads an error log. The error log may be read by the remote controller 4 instead of the management device 1 and the lighting controller 20. The remote controller 4 is, for example, an infrared remote controller.

The remote controller 4 sets the destination address in the terminal 30c, specifies the serial number as 0x00, and transmits an error log monitor command. The terminal 30c receives the error log monitor command via the infrared communication 9. As shown in step S21, the analysis unit 34 of the terminal 30c acquires the latest serial number stored in the error log area of the storage unit 31 when the serial number is 0x00. Next, the terminal 30c transmits the latest serial number response to the remote controller 4 in response to the error log monitor command.

The remote controller 4 that has received the latest serial number response confirms whether or not the received latest serial number is 0x00, as shown in step S22. If the latest serial number is 0x00, the error log is not accumulated in the terminal 30c. Therefore, as shown in step S23, the error log acquisition operation is terminated. If the latest serial number is not 0x00, the remote controller 4 sets the latest serial number in the data area and sends an error log monitor command response to the terminal 30c as shown in step S24.

As shown in step S25, the analysis unit 34 of the terminal 30c acquires the error log of the latest serial number by the same operation as in the second embodiment. Next, the terminal 30c transmits an error log monitor command response to the remote controller 4. The remote controller 4 displays the received error log as shown in step S26. Further, the remote controller 4 decrements the serial number as shown in step S27.

As shown in step S28, the remote controller 4 confirms whether or not the serial number after decrementing is 0x00. When the serial number is 0x00, the remote controller 4 ends the error log acquisition operation as shown in step S29. If the serial number is not 0x00, the remote controller 4 sets the decremented serial number in the data area and sends an error log monitor command to the terminal 30c as shown in step S30. In this way, steps S25 to S30 are repeated, and the remote controller 4 acquires an error log.

In this way, the remote controller 4 directly communicates with the terminal 30c by infrared rays, so that the error log can be confirmed quickly and easily without increasing the amount of communication via the communication line 7.

Embodiment 4.
FIG. 7 is a diagram showing a communication sequence in which the management device 1 according to the fourth embodiment saves an error log. As shown in step S31, the lighting controller 20 collects the error logs for one day before the previous day by using the error log monitor command described in the second embodiment at a predetermined time every day. The predetermined time is, for example, 0:10. As shown in step S31, the lighting controller 20 collects the error logs having the higher rank shown in Table 2 among the received error logs. The lighting controller 20 stores the error log having a high rank in the error log area of the non-volatile memory.

Next, as shown in step S32, the lighting controller 20 determines whether or not there is an error log stored in the error log area of the non-volatile memory. When the error log exists, the lighting controller 20 transmits the error log to the management device 1 via the LAN 8. The management device 1 that has received the error log stores the received error log in the hard disk or SSD (Solid State Drive) as shown in step S33. The lighting controller 20 does not send the error log to the management device 1 when the error log does not exist in the non-volatile memory.

In the present embodiment, the management device 1 automatically collects error logs of high importance on a regular basis. This prevents high-value errors from being overlooked. Specifically, it is possible for the user to easily recognize an error that occurs irregularly.

Further, the lighting controller 20 transmits only the error logs of high importance received from the terminals 30a to 30c to the management device 1. As a result, the data capacity of communication via the LAN 8 can be reduced. In addition, the amount of data stored in the management device 1 can be reduced.

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

1 Management device, 4 remote control, 7 communication line, 8 LAN, 9 infrared communication, 20 lighting controller, 30a-30c terminal, 31 storage unit, 32 communication unit, 33 comparison unit, 34 analysis unit, 40 load, 80 lighting control system

Claims (9)

A terminal that controls the operation of the load, and
A controller that communicates with the terminal and causes the terminal to control the operation of the load.
Equipped with
The terminal stores the type of error, and when the transmission signal received from the controller has an abnormality, determines which of the error types the abnormality corresponds to, and transmits the determination result to the controller. death,
The lighting control system is characterized in that the terminal stores the importance of an error for each type of the error, and the determination result includes information on the importance of the abnormality . A terminal that controls the operation of the load, and
A controller that communicates with the terminal and causes the terminal to control the operation of the load.
Equipped with
The terminal stores the type of error, and when the transmission signal received from the controller has an abnormality, determines which of the error types the abnormality corresponds to, and transmits the determination result to the controller. death,
The terminal is a lighting control system characterized in that a plurality of the determination results are stored with serial numbers in the order in which the abnormality occurs. The lighting control system according to claim 2 , wherein the terminal transmits the plurality of determination results to the controller in order from the one having the largest serial number. The terminal transmits the latest serial number among the serial numbers to the controller, and the terminal sends the latest serial number to the controller.
The controller sends a command requesting a determination result corresponding to the latest serial number, and the controller sends a command.
The lighting control system according to claim 2 or 3 , wherein the terminal transmits a determination result corresponding to the latest serial number to the controller in response to the command. When the controller receives the determination result corresponding to the first serial number among the serial numbers, the command for requesting the determination result corresponding to the second serial number when the second serial number, which is one smaller than the first serial number, is larger than zero. Is transmitted to the terminal, and if the second serial number is zero, the command is not transmitted.
The lighting control system according to any one of claims 2 to 4 , wherein the terminal transmits a determination result corresponding to the second serial number to the controller in response to the command. The lighting control system according to any one of claims 1 to 5 , wherein the controller notifies the user of the determination result when the determination result is received. A terminal that controls the operation of the load, and
A controller that communicates with the terminal and causes the terminal to control the operation of the load.
Equipped with
The terminal stores the type of error, and when the transmission signal received from the controller has an abnormality, determines which of the error types the abnormality corresponds to, and transmits the determination result to the controller. death,
The controller
With the management device
A lighting controller that sends a command for requesting the determination result to the terminal in response to an instruction from the management device.
Equipped with
The terminal transmits the determination result to the lighting controller in response to the command.
The determination result includes information on the importance of the abnormality.
The lighting controller is a lighting control system characterized in that only a determination result having a high importance among the determination results received from the terminal is transmitted to the management device. The transmission signal abnormality includes a checksum abnormality, a command that the transmission signal does not correspond to the terminal, or a parameter included in the transmission signal having an abnormal value. The lighting control system according to any one of claims 1 to 7 . The lighting control system according to any one of claims 1 to 8 , wherein the load is a lighting fixture.

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