JP2019200940A - Lighting control system - Google Patents

Abstract

To obtain a lighting control system in which a user can easily know information of an error generated in a system.SOLUTION: A lighting control system comprises: a terminal device that controls an operation of a load; and a controller that communicates with the terminal device, and makes the terminal device to control the operation of the load. The terminal device stores a type of an error, determines which of a type of the error corresponds to an abnormality in the case where a transmission signal received from the controller has the abnormality, and transmits a determination result to the controller.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a lighting control system.

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

JP-A-8-205255

  In the remote monitoring and control system described in Patent Document 1, the user can grasp the transmission error frequency, but cannot grasp the content of the transmission error. For this reason, it may take time to identify the cause of the error. Moreover, in patent document 1, the error notified to a user is limited to the transmission error. For this reason, the user may not be able to grasp an error that has occurred in each device in the system.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lighting control system that allows a user to easily know information on errors that have occurred in the system.

  A lighting control system according to the present invention includes a terminal device that controls the operation of a load, and a controller that communicates with the terminal device and causes the terminal device to control the operation of the load. The type is stored, and when 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.

  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. For this reason, the user can easily know information on errors that have occurred in the system.

1 is a circuit block diagram of a lighting control system according to Embodiment 1. FIG. 2 is a functional block diagram of a terminal device according to Embodiment 1. FIG. 2 is a hardware configuration diagram of a terminal according to Embodiment 1. FIG. It is a figure which shows the communication sequence in which the terminal device which concerns on Embodiment 1 stores an error log. FIG. 10 is a diagram illustrating a communication sequence in which an error log is read by the management device according to the second embodiment. It is a figure which shows the communication sequence from which the remote control which concerns on Embodiment 3 reads an error log. FIG. 10 is a diagram illustrating a communication sequence in which the management device according to the fourth embodiment stores an error log.

  An illumination control system according to an embodiment of the present invention will be described with reference to the drawings. The same or corresponding components are denoted by the same reference numerals, and repeated description may be omitted.

Embodiment 1 FIG.
FIG. 1 is a circuit block diagram of a 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 is composed of a personal computer, for example. The management apparatus 1 performs state monitoring and setting of the entire lighting control system 80. The management device 1 and the lighting controller 20 are connected via a LAN (Local Area Network) 8 that is a wired or wireless communication network. The LAN is, for example, Ethernet (registered trademark).

  The lighting controller 20 communicates with the terminals 30 a to 30 c, 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 the communication line 7 connected by a jumper wiring. One or more terminals may be connected to the lighting controller 20. The lighting controller 20 transmits and receives a transmission signal to and from a device connected via the communication line 7. The transmission signal includes, for example, address data and control data.

  A unique address is assigned to each of the terminals 30a to 30c. The terminals 30a to 30c are identified by the set addresses. 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 a lighting fixture, for example. 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, although the structure of the terminal device 30a is demonstrated, the structure of the terminal devices 30b and 30c is the same as that of the terminal device 30a. As illustrated in FIG. 2, the terminal device 30 a 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, for example. The storage unit 31 stores the address of the terminal 30a, an error log, and the like. The communication unit 32 receives a transmission signal transmitted from the lighting controller 20 via the communication line 7. In addition, the communication unit 32 transmits information such as an error log to the illumination 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 device 30a. When the comparison unit 33 determines that the address data of the transmission signal matches the address set in the terminal device 30a, the terminal device 30a executes the control data of the transmission signal. Here, the terminal device 30a includes a load control unit (not shown) that controls the load 40 in accordance with the control data. The load control unit includes, for example, a relay that changes the connection state between the load 40 and the power source.

  As will be described later, the analysis unit 34 determines whether the transmission signal has an abnormality. Moreover, the analysis part 34 determines the kind of abnormality of a transmission signal, when a transmission signal has abnormality.

  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. 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, and 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. 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. Moreover, you may implement | achieve each function of each part of the communication part 32, the comparison part 33, and the analysis part 34 with a control circuit. Moreover, you may implement | achieve the function of each part collectively with a control apparatus.

  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 described as programs and stored in a memory. The control device realizes the functions of the respective units by reading and executing the program stored in the memory.

  In other words, the memory stores a program that determines whether or not the transmission signal has an abnormality, determines the type of abnormality of the transmission signal when the transmission signal has an abnormality, and transmits the determination result to the lighting controller 20. . These programs can be said to cause the 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 nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, or an 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.

  In addition, about each function of the communication part 32, the comparison part 33, and the analysis part 34, a part may be implement | achieved by exclusive hardware and a part may be implement | achieved by software or firmware. For example, the function of the communication unit 32 and the comparison unit 33 is realized by a control device as dedicated hardware, and the function of the analysis unit 34 is performed by the control device reading and executing a program stored in the memory. It is possible to realize.

  As described above, the control device can realize the above-described functions by hardware, software, firmware, or a combination thereof.

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

  FIG. 4 is a diagram illustrating a communication sequence in which the terminal device 30a according to Embodiment 1 stores an error log. Here, the operation of the terminal device 30a will be described, but the operation of the terminal devices 30b and 30c is the same. In FIG. 4, the operation of the comparison unit 33 is omitted for convenience.

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

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

  Next, as shown in step S2, the analysis unit 34 determines whether there is an abnormality in the setting parameter. The terminal device 30a may store normal values of parameters 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 outside 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, a case where there is an abnormality in the setting parameter will be described. An error table shown in Table 1 is stored in the storage unit 31 of the terminal device 30a. That is, the terminal device 30a stores the type of error.

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

  A communication error indicates an abnormality included in the 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-corresponding command indicates that the transmission signal includes a command that does not correspond to the terminal device 30a. The parameter abnormality indicates that the parameter included in the transmission signal is an abnormal value. The parameter abnormality includes a case where the setting parameter is character string data or symbol data and is not a numerical value. The parameter abnormality includes a case where the setting parameter is larger than the upper limit of the numerical value or smaller than the lower limit.

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

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

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

  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 device 30a refers to the error table in the storage unit 31 and determines which of the error types in the error table corresponds to the abnormality of the transmission signal. Here, it is determined that the abnormality of the transmission signal is a parameter error of the communication error.

  Next, as shown in step S <b> 6, the analysis unit 34 writes an error log, which is a transmission signal abnormality determination result, in the error log area of the storage unit 31. Table 3 shows the contents of the error log. The contents stored as the error log are, for example, a serial number, an abnormality occurrence time, an error rank, an abnormality type, and an immediately preceding event.

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

  The abnormality occurrence time is stored in the storage unit 31 in a BCD (Binary Coded Decimal) format. Here, the management apparatus 1 transmits a time setting command to the devices in the lighting control system 80 by broadcasting. The time setting command is a command for notifying the time. In the terminal device 30a, the clock is set using the time simultaneously transmitted from the management device 1. For the error log, the clock-set time is used.

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

  After the process of step S6, the analysis unit 34 transmits an abnormal response shown in step S7 as a response command to the illumination controller 20. When Step S3 is processed, the analysis unit 34 transmits a normal response shown in Step S4 to the illumination 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 apparatus 1 via the LAN 8.

  In the present embodiment, a device that has received a transmission signal having an error determines the type of abnormality that the transmission signal has, stores an error log that is a determination result in the storage unit 31, and transmits the error log to the controller. When the controller receives the determination result, the controller notifies the user of the determination result. As a result, the user can easily know information on errors that have occurred in the system. Further, the error log includes detailed information about errors as shown in Table 3. For this reason, the cause of the error can be identified in a short time.

  In the present embodiment, an error log can be stored in the storage unit 31 of the device in which an error has occurred even for errors other than communication errors. The terminal device 30a determines the type of abnormality that has occurred in the terminal device 30a, and transmits the determination result to the lighting controller 20. For this reason, the user can grasp | ascertain the error which generate | occur | produced in each apparatus in a system.

  In addition, error logs are stored with serial numbers. For this reason, the user can refer to the past error log from the time of occurrence of the abnormality. Therefore, the user can further easily analyze the cause of the error.

  The abnormality type shown in Table 1 and the event that occurred immediately before shown in Table 4 may be different depending on the device that stores these tables. Further, the contents of the error log shown in Table 3 are merely examples, and may be changed according to usage conditions.

  These modifications can be applied as appropriate to the illumination control system according to the following embodiments. In addition, since there are many common points with Embodiment 1 about the illumination control system which concerns on the following embodiment, it demonstrates centering around difference with Embodiment 1. FIG.

Embodiment 2. FIG.
FIG. 5 is a diagram illustrating a communication sequence in which the management apparatus 1 according to the second embodiment reads an error log. The management device 1 transmits an error log monitor command. The error log monitor command is a command for requesting an error log. The address of the device that acquires the error log is set as the transmission destination address of the error log monitor command. Also, a serial number of the error log stored in the non-volatile memory of the device to be acquired is set in the data area of the error log monitor command.

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

  The terminal device 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 device 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 device 30a designates the management device 1 as the transmission destination address and transmits the latest serial number response. The latest serial number is specified in the data area of the latest serial number response. The lighting controller 20 that has received the latest serial number response via the communication line 7 confirms that the transmission destination address is the management apparatus 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 checks 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 no error log is accumulated in the terminal device 30a. Therefore, the management apparatus 1 ends the error log acquisition operation as shown in step S13.

  If the latest serial number is not 0x00, the management apparatus 1 sets the latest serial number in the data area and transmits an error log monitor command to the terminal device 30a as shown in step S14. That is, the management apparatus 1 transmits a command requesting an error log corresponding to the latest serial number. Hereinafter, a 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 transmission destination address of the received error log monitor is the terminal device 30 a and retransmits the error log monitor via the communication line 7. That is, the lighting controller 20 transmits a command for requesting an error log to the terminal device 30a in accordance with an instruction from the management device 1.

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

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

  The management apparatus 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 apparatus 1 checks whether the serial number after decrementing is 0x00. If the serial number is 0x00, the management apparatus 1 ends the error log acquisition operation as shown in step S19.

  When 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 transmits the error log monitor command to the terminal device 30a. The decremented serial number is 0x01. In this way, Step S15 to Step S20 are repeated, and the management device 1 acquires an error log.

  In the present embodiment, when the management apparatus 1 receives the error log corresponding to the first serial number among the serial numbers, the error log corresponding to the second serial number if the second serial number that is 1 smaller than the first serial number is greater than zero. Is transmitted to the terminal 30a. When the second serial number is zero, the management device 1 does not transmit a command requesting an error log. The terminal device 30a transmits an error log corresponding to the second serial number to the lighting controller 20 in response to a command requesting the error log.

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

  In this way, by using the serial number assigned to the error log, the error log stored in the terminal device 30a can be displayed on the management device 1 in order from the newest one. For this reason, error information can be easily managed. Also, 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.
FIG. 6 is a diagram illustrating 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 an infrared remote controller, for example.

  The remote controller 4 sets the transmission destination address in the terminal device 30c, designates the serial number as 0x00, and transmits the error log monitor command. The terminal device 30 c 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 device 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. When the latest serial number is 0x00, no error log is accumulated in the terminal device 30c. For this reason, 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 transmits an error log monitor command response to the terminal unit 30c, as shown in step S24.

  As shown in step S25, the analysis unit 34 of the terminal device 30c acquires the error log of the latest serial number by the same operation as in the second embodiment. Next, the terminal unit 30 c 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 checks whether the serial number after decrementing is 0x00. If 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, as shown in step S30, the remote controller 4 sets the decremented serial number in the data area and transmits an error log monitor command to the terminal unit 30c. In this way, steps S25 to S30 are repeated, and the remote controller 4 acquires an error log.

  As described above, the remote control 4 directly performs infrared communication with the terminal device 30c, so that the error log can be quickly and easily confirmed without increasing the communication amount via the communication line 7.

Embodiment 4 FIG.
FIG. 7 is a diagram illustrating a communication sequence in which the management apparatus 1 according to the fourth embodiment stores an error log. As shown in step S31, the lighting controller 20 collects an error log for one day on the previous day 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 error logs having a high rank shown in Table 2 among the received error logs. The lighting controller 20 stores an error log with a high rank in the error log area of the nonvolatile memory.

  Next, as shown in step S32, the lighting controller 20 determines whether there is an error log stored in the error log area of the nonvolatile memory. When the error log exists, the lighting controller 20 transmits the error log to the management apparatus 1 via the LAN 8. The management apparatus 1 that has received the error log stores the received error log on a hard disk or an SSD (Solid State Drive), as shown in step S33. The lighting controller 20 does not transmit an error log to the management apparatus 1 when there is no error log in the nonvolatile memory.

  In the present embodiment, the management apparatus 1 automatically collects highly important error logs periodically. Thereby, it is possible to prevent an error with high importance from being overlooked. Specifically, the user can easily recognize errors that occur irregularly.

  In addition, the lighting controller 20 transmits only the most important error logs received from the terminals 30 a to 30 c to the management device 1. Thereby, the data capacity of communication via LAN8 can be made small. In addition, the data capacity stored in the management apparatus 1 can be reduced.

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

  DESCRIPTION OF SYMBOLS 1 Management apparatus, 4 Remote control, 7 Communication line, 8 LAN, 9 Infrared communication, 20 Lighting controller, 30a-30c A terminal device, 31 Memory | storage part, 32 Communication part, 33 Comparison part, 34 Analysis part, 40 Load, 80 Lighting control system

Claims (10)

A terminal that controls the operation of the load;
A controller that communicates with the terminal and causes the terminal to control the operation of the load;
With
The terminal stores an error type, and when a transmission signal received from the controller has an abnormality, determines whether the abnormality corresponds to the error type and transmits a determination result to the controller. The lighting control system characterized by doing.   The lighting control system according to claim 1, wherein the terminal stores an importance level of the error for each type of error, and the determination result includes information on the importance level of the abnormality.   The lighting control system according to claim 1, wherein the terminal stores a plurality of the determination results with serial numbers assigned in the order in which the abnormality occurred.   The lighting control system according to claim 3, wherein the terminal device transmits the plurality of determination results to the controller in descending order of the serial numbers. The terminal transmits the latest serial number of the serial numbers to the controller,
The controller sends a command requesting a determination result corresponding to the latest serial number;
The lighting control system according to claim 3 or 4, wherein the terminal device transmits a determination result corresponding to the latest serial number to the controller in accordance with the command. When the controller receives a determination result corresponding to the first serial number of the serial numbers, a command for requesting a determination result corresponding to the second serial number if a second serial number that is 1 smaller than the first serial number is greater than zero To the terminal, and if the second serial number is zero, do not send the command,
The lighting control system according to claim 3, wherein the terminal device transmits a determination result corresponding to the second serial number to the controller in response to the command.   The lighting control system according to claim 1, wherein the controller notifies the user of the determination result when the determination result is received. The controller is
A management device;
A lighting controller that transmits a command requesting the determination result to the terminal in response to an instruction from the management device;
With
The terminal transmits the determination result to the lighting controller according to the command,
The determination result includes information on the importance of the abnormality,
The lighting controller according to any one of claims 1 to 7, wherein the lighting controller transmits only a determination result having high importance among the determination results received from the terminal device to the management device. system.   The abnormality of the transmission signal includes a checksum abnormality, a command that the transmission signal does not correspond to the terminal, or a parameter that the transmission signal includes is an abnormal value. The illumination control system according to any one of claims 1 to 8.   The lighting control system according to claim 1, wherein the load is a lighting fixture.

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