Single lamp fault remote detection method and system

Abstract

The invention discloses a single lamp fault remote detection method and system, and the method comprises the steps that a first gateway transmits a first wireless detection signal to a first single lamp, waits for a first wireless feedback signal of the first single lamp, and sets a waiting time threshold value; if the current first gateway does not receive the first wireless feedback signal of the first single lamp within the waiting time threshold, the first gateway generates a gateway internal detection instruction, and judges whether the first gateway has an RF communication fault according to the internal detection instruction; the first gateway uploads fault data or generates a new second wireless detection signal according to the detection result of the gateway internal detection instruction, and the first gateway sends the second wireless detection signal to the second single lamp; after receiving the second wireless detection signal, the second single lamp generates a second wireless feedback signal and sends the second wireless feedback signal to the first gateway; and judging the current gateway and single lamp wireless communication fault type according to the first wireless feedback signal and / or the second wireless feedback signal.

Description

Technical Field

[0001] This invention relates to the field of street light detection technology, and in particular to a method and system for remote detection of single-lamp faults. Background Technology

[0002] Currently, traditional methods for identifying individual lamp faults often rely solely on uploaded data from the lamp's sensors. Examples include abnormal voltage / current readings, LED driver malfunctions, light sensor anomalies, temperature / humidity sensor anomalies, and storage failures. However, the data transmission link for individual lamp faults also includes gateways and routing nodes. A malfunction in the communication module between the lamp and the gateway can also lead to data transmission or control failures. Therefore, identifying the type of fault in the transmission link is a pressing technical problem. Existing technologies lack algorithms to determine the cause of individual lamp faults in the data link. This necessitates on-site troubleshooting when data transmission fails or control malfunctions, requiring significant manpower and resources for repair. Summary of the Invention

[0003] One objective of this invention is to provide a method and system for remote detection of single-lamp faults. The method and system utilize a gateway to send wireless detection signals to single-lamp nodes. These wireless detection signals contain response instructions. The gateway determines whether a wireless communication fault exists based on whether it receives a wireless response signal from the corresponding single lamp. Furthermore, by comparing the reception of wireless response signals from different single lamps, the gateway identifies the main component of the wireless communication fault. This allows for accurate identification of the faulty segment of the communication link, thereby achieving precise location of the communication link fault and accurate judgment of the fault type. This significantly improves the efficiency of single-lamp fault diagnosis and reduces the waste of human resources.

[0004] One objective of this invention is to provide a method and system for remote detection of single-lamp faults. Upon detecting a communication fault in a corresponding wireless communication link segment, and provided the fault is not specific to the lamp itself, the lamp can forward its own data and the interaction data between itself and the faulty link segment gateway to an adjacent routing node or gateway. This routing node can be another adjacent lamp, and data transmission is achieved through a wireless communication module. The adjacent routing node or gateway can route and upload the interaction data of the corresponding faulty wireless communication link segment and the lamp's own data to the central controller, thereby ensuring timely data upload for single lamps even under communication link segment fault conditions.

[0005] One objective of this invention is to provide a method and system for remote detection of single-lamp faults. In this method and system, the single lamp pre-stores interaction data with the wireless communication connection gateway, and after parsing the interaction data, constructs a multi-dimensional status code corresponding to the communication link. If the single lamp does not receive data from the corresponding wireless communication gateway within a certain period of time, it sends the multi-dimensional status code of the corresponding communication link before the link failure to the central controller through adjacent routing nodes or adjacent gateways. The central controller can quickly analyze the communication link fault based on the status code and generate a corresponding solution.

[0006] To achieve at least one of the above-mentioned objectives, the present invention further provides a method for remote detection of single-lamp faults, the method comprising: The first gateway receives the first wireless detection signal sent to the first single lamp, waits for the first wireless feedback signal from the first single lamp, and sets a waiting time threshold. If the first gateway does not receive the first wireless feedback signal from the first single lamp within the waiting time threshold, the first gateway generates an internal detection instruction and determines whether the first gateway has an RF communication failure based on the internal detection instruction. Based on the detection result of the internal detection command of the gateway, the first gateway uploads fault data or generates a new second wireless detection signal, and the first gateway sends the second wireless detection signal to the second single lamp. After receiving the second wireless detection signal, the second single lamp generates a second wireless feedback signal and sends the second wireless feedback signal to the first gateway; The wireless communication fault type between the current gateway and the single lamp is determined based on the first wireless feedback signal and / or the second wireless feedback signal. The first single lamp collects its own data and the interaction data with the first gateway to generate a wireless communication status code including the single lamp and the gateway. The wireless communication status code is sent to the adjacent second gateway, which then sends the wireless communication status code to the central controller and analyzes the wireless communication faults, including those of individual lights and gateways.

[0007] According to a preferred embodiment of the present invention, when the first gateway does not receive the first wireless feedback information of the first single lamp within the waiting time threshold, the first gateway generates a hardware layer state internal detection instruction, a driver layer state internal detection instruction, and a network protocol layer state internal detection instruction for the gateway RF wireless communication module, and generates a corresponding multi-dimensional status code according to the internal detection instruction, and analyzes the multi-dimensional status code to determine whether the multi-dimensional status code has reached the communication disconnection state. If so, the corresponding multi-dimensional status code is uploaded to the central controller.

[0008] According to another preferred embodiment of the present invention, the internal hardware status detection instructions include: chip status detection instructions, voltage and temperature status detection instructions, signal strength status detection instructions, and antenna status detection instructions; the gateway accesses the hardware status register of the RF wireless communication module through its own main control MCU using the UART serial port, and extracts chip status codes, voltage and temperature status codes, signal strength status codes, and antenna status codes from the hardware status register for analyzing the hardware status of the RF wireless communication module.

[0009] According to another preferred embodiment of the present invention, the internal detection instructions for the driver layer state include: an internal loopback state detection instruction, an RF parameter state detection instruction, a bit error rate state detection instruction, and a firmware version state detection instruction. The gateway pre-builds an AT instruction set through its own main control MCU. The gateway's own main control MCU obtains driver layer state data including internal loopback state, RF parameter state, bit error rate state, and firmware version state according to the AT instruction set, and converts the driver layer state data into corresponding status codes for analyzing the driver layer state of the RF wireless communication module.

[0010] According to another preferred embodiment of the present invention, the network protocol layer state internal detection instruction includes: a local device liveness detection instruction and a single-lamp response protocol parsing instruction; wherein the local device liveness detection instruction sends a probe frame to its own RF wireless communication module through the first gateway, and the RF wireless communication module receives the network protocol layer state including the current network protocol diagnostic class, sequence symbol, and expected timeout after responding to the probe frame; and obtains the parsed single-lamp response format state through the single-lamp response protocol parsing instruction, converts the network protocol layer state into the corresponding status code, and determines whether the current network protocol layer is faulty based on the network protocol layer state and the single-lamp response format state.

[0011] According to another preferred embodiment of the present invention, when the first gateway detects and analyzes the data through its internal gateway instructions, if at least one of the gateway's own RF wireless communication module states meets the disconnection condition, the first gateway sends a multi-dimensional status code containing hardware layer status code, driver layer status code, and network protocol layer status code to the central controller. The central controller saves the multi-dimensional status code as historical data for RF wireless communication module fault analysis under different time series.

[0012] According to another preferred embodiment of the present invention, after the first gateway completes the internal detection of the hardware layer status, the internal detection of the driver layer status, and the detection of the network protocol layer status of the RF wireless communication module, if it is determined that the RF wireless communication module status of the gateway itself does not meet the disconnection condition, the first gateway sends second wireless detection information to the adjacent second lamp. When the second lamp receives the second wireless detection information, the second lamp sends second wireless feedback information to the first lamp. If the first gateway can receive the second wireless feedback information, a fault judgment of the RF wireless communication module of the first lamp is generated in the first network, and the fault message of the RF wireless communication module of the first lamp is uploaded to the central controller.

[0013] According to another preferred embodiment of the present invention, if the first lamp does not receive wireless communication information from the first gateway within a preset time, the first lamp will send its collected self-information and RF wireless communication data with the first gateway to the adjacent second gateway or second lamp. After receiving the data sent by the first lamp, the second lamp will upload it to the central controller through the corresponding gateway.

[0014] To achieve at least one of the above-mentioned objectives, the present invention further provides a single-lamp fault remote detection system, wherein the system executes the above-mentioned single-lamp fault remote detection method.

[0015] The present invention further provides a computer-readable storage medium storing a computer program, which is executed by a processor to implement the above-described method for remote detection of single-lamp faults. Attached Figure Description

[0016] Figure 1 The diagram shown is a flowchart of a remote detection method for single-lamp faults according to the present invention. Detailed Implementation

[0017] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0018] It is understood that the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0019] Please combine Figure 1 This invention discloses a method and system for remote detection of a single lamp, the method mainly comprising: S01. The first gateway receives the first wireless detection signal sent to the first single lamp, waits for the first wireless feedback signal from the first single lamp, and sets a waiting time threshold. S02. If the first gateway does not receive the first wireless feedback signal from the first single lamp within the waiting time threshold, the first gateway generates an internal gateway detection instruction and determines whether the first gateway has an RF communication failure based on the internal detection instruction. S03. Based on the detection result of the internal detection command of the gateway, the fault data is uploaded to the first gateway or a new second wireless detection signal is generated. The first gateway sends the second wireless detection signal to the second single lamp. S04. After receiving the second wireless detection signal, the second single lamp generates a second wireless feedback signal and sends the second wireless feedback signal to the first gateway. S05. Determine the current wireless communication fault type between the gateway and the single lamp based on the first wireless feedback signal and / or the second wireless feedback signal. The first single lamp collects its own data and the interaction data with the first gateway to generate a wireless communication status code including the single lamp and the gateway. S06. The wireless communication status code is sent to the adjacent second gateway. The second gateway sends the wireless communication status code to the central controller and analyzes the wireless communication faults of the single lamp and the gateway.

[0020] Specifically, in this invention, when the first gateway does not receive the first wireless feedback information from the first single lamp within the waiting time threshold, the wireless feedback information can be a message acknowledgment (ACK), which is sent by the first gateway to the first single lamp with a message feedback request attached. The first gateway generates internal detection instructions for the hardware layer status, driver layer status, and network protocol layer status of the gateway RF wireless communication module. The different internal detection instructions are used to detect different types of faults in the RF module itself, and generate corresponding multi-dimensional status codes according to the internal detection instructions. The multi-dimensional status codes are analyzed to determine whether the multi-dimensional status codes have reached a communication disconnection state. At least one dimension of the multi-dimensional status code satisfies the disconnection condition. If it does, the corresponding multi-dimensional status code is uploaded to the central controller. The central controller further analyzes all fault types of the gateway RF wireless communication module and provides corresponding maintenance suggestions.

[0021] Specifically, in the hardware layer of the RF wireless communication module, the internal hardware status detection instructions of this invention include: chip status detection instructions, voltage and temperature status detection instructions, signal strength status detection instructions, and antenna status detection instructions. The gateway accesses the hardware status register of the RF wireless communication module via its own main control MCU using a UART serial port, and extracts chip status codes, voltage and temperature status codes, signal strength status codes, and antenna status codes from the hardware status register for analyzing the hardware status of the RF wireless communication module. The chip status detection instruction can be 0x81, used to detect the chip operating mode and error flags of the RF wireless communication module. The chip status code returned by the chip status detection instruction can be Bit0=1, indicating a data transmitter fault; Bit1=1, indicating a data receiver fault. The voltage and temperature status detection instruction can be 0x92, with the corresponding voltage and temperature status codes being the time-supply voltage value and the chip temperature value. The signal strength status detection instruction can be 0xA3, used to detect the current RSSI value of the RF wireless communication module, where the signal strength status code is the corresponding RSSI value of the RF wireless communication module. The antenna status detection command can be 0xB5, used to detect short circuits or open circuits. The corresponding antenna status codes are 0x00, indicating that the antenna is normal; 0x01 indicates that the antenna is open; and 0x02 indicates that the antenna is short-circuited. Therefore, this invention directly constructs or obtains the corresponding status codes based on different types of status data.

[0022] Furthermore, the internal detection instructions for the driver layer state include: an internal loopback state detection instruction, an RF parameter state detection instruction, a bit error rate state detection instruction, and a firmware version state detection instruction. The gateway pre-constructs an AT instruction set through its own main control MCU. The gateway's own main control MCU obtains driver layer state data including internal loopback state, RF parameter state, bit error rate state, and firmware version state based on the AT instruction set, and converts the driver layer state data into corresponding status codes for analyzing the driver layer state of the RF wireless communication module. Specifically, the internal loopback state detection instruction is AT+TEST=LOOPBACK, used to verify whether the baseband circuit of the RF wireless communication module is normal. For example, a test frame 0xAA55 can be sent to determine whether the baseband circuit receives the test frame 0xAA55. If it is received, the corresponding baseband circuit is normal; otherwise, it is abnormal, and a corresponding internal loopback state code is generated. The internal loopback state code can be designed separately according to system settings, which will not be described in detail in this invention. The RF parameter status detection command can be AT+RF_PARAM?, which outputs the current RF wireless communication module channel, power, and rate configuration. The bit error rate (BER) status detection command can be AT+BERT=START, which obtains the corresponding bit error rate. In this invention, the BER value can be converted, for example, into a one-hot code, to obtain the corresponding BER status code. The firmware version status detection command can be AT+FIRMWARE?, which obtains the corresponding firmware version information and checks if the CRC (Cyclic Redundancy Check) of the firmware version information is consistent. If consistent, the firmware version information is considered normal; otherwise, it is considered abnormal, and a corresponding firmware version status code is generated.

[0023] Furthermore, the network protocol layer status internal detection instructions include: a local device liveness detection instruction and a single-lamp response protocol parsing instruction. The local device liveness detection instruction sends a probe frame to its own RF wireless communication module via the first gateway. The RF wireless communication module responds to the probe frame and obtains the network protocol layer status, including the current network protocol diagnostic type, sequence symbol, and expected timeout. The single-lamp response protocol parsing instruction obtains the parsed single-lamp response format status, converts the network protocol layer status into a corresponding status code, and determines whether the current network protocol layer is faulty based on the network protocol layer status and the single-lamp response format status. Specifically, the local device liveness detection instruction can be a probe_frame, in which case the corresponding network protocol type diagnostic is "type": 0xD1, further determining its network protocol type status, for example, the corresponding network protocol type status is 0x3344.

[0024] When the first gateway, after receiving and analyzing the internal detection instructions, finds that at least one of its own RF wireless communication module states meets the disconnection condition, it sends a multi-dimensional status code to the central controller, containing hardware layer status codes, driver layer status codes, and network protocol layer status codes. The central controller saves the multi-dimensional status code as historical data for RF wireless communication module fault analysis at different time series. The multi-dimensional status code can be implemented by concatenating character windows of a specific length, or by constructing a tag set of status codes with different dimensions; this will not be elaborated upon further in this invention.

[0025] After the first gateway completes the internal detection of the hardware layer status, the internal detection of the driver layer status, and the detection of the network protocol layer status of the RF wireless communication module, if it determines that the RF wireless communication module status of the gateway itself does not meet the disconnection condition, the first gateway sends the second wireless detection information to the adjacent second lamp. When the second lamp receives the second wireless detection information, the second lamp sends the second wireless feedback information to the first lamp. If the first gateway can receive the second wireless feedback information, it generates a judgment of RF wireless communication module failure of the first lamp in the first network and uploads the RF wireless communication module failure message of the first lamp to the central controller.

[0026] If the first lamp does not receive wireless communication information from the first gateway within a preset time, the first lamp will send its collected self-information and RF wireless communication data with the first gateway to the adjacent second gateway or second lamp. Assuming the RF wireless communication of the first lamp is currently normal, the second lamp, after receiving the data sent by the first lamp, will upload it to the central controller through its corresponding gateway. At this time, the second gateway or second lamp can report data loss due to a malfunction in the first gateway's own RF wireless communication module. Furthermore, since the first lamp stores wireless communication data with the first gateway within a certain time range, more accurate data analysis can be achieved through the central controller. When the first lamp malfunctions, it can be identified through the first gateway and other second lamps before being uploaded to the corresponding central controller.

[0027] The processes described in the flowcharts above, as disclosed in the embodiments of this invention, can be implemented as computer software programs. The embodiments disclosed in this invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication component, and / or installed from a removable medium. When the computer program is executed by a central processing unit (CPU), the methods of this application are not limited to the aforementioned functions. It should be noted that the computer-readable medium described above in this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wire segments, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in connection with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless segments, wire segments, optical fibers, RF, etc., or any suitable combination thereof.

[0028] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0029] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A method for remote detection of single-lamp faults, characterized in that, The method includes: The first gateway sends a first wireless detection signal to the first single lamp, waits for the first wireless feedback signal from the first single lamp, and sets a waiting time threshold. If the first gateway does not receive the first wireless feedback signal from the first single lamp within the waiting time threshold, the first gateway generates an internal detection instruction and determines whether the first gateway has an RF communication failure based on the internal detection instruction. Based on the detection result of the internal detection command of the gateway, the first gateway uploads fault data or generates a new second wireless detection signal, and the first gateway sends the second wireless detection signal to the second single lamp. After receiving the second wireless detection signal, the second single lamp generates a second wireless feedback signal and sends the second wireless feedback signal to the first gateway; The wireless communication fault type between the current gateway and the single lamp is determined based on the first wireless feedback signal and / or the second wireless feedback signal. The first single lamp collects its own data and the interaction data with the first gateway to generate a wireless communication status code including the single lamp and the gateway. The wireless communication status code is sent to the adjacent second gateway, which then sends the wireless communication status code to the central controller and analyzes the wireless communication faults, including those of individual lights and gateways.

2. The method for remote detection of single-lamp faults according to claim 1, characterized in that, When the first gateway does not receive the first wireless feedback information from the first single lamp within the waiting time threshold, the first gateway generates internal detection instructions for the hardware layer status of the gateway RF wireless communication module, internal detection instructions for the driver layer status, and internal detection instructions for the network protocol layer status. Based on the internal detection instructions, the first gateway generates a multi-dimensional status code of the corresponding type and analyzes the multi-dimensional status code to determine whether the multi-dimensional status code has reached the communication disconnection state. If so, the corresponding multi-dimensional status code is uploaded to the central controller.

3. The method for remote detection of single-lamp faults according to claim 2, characterized in that, The internal hardware status detection instructions include: chip status detection instructions, voltage and temperature status detection instructions, signal strength status detection instructions, and antenna status detection instructions. The gateway accesses the hardware status register of the RF wireless communication module through its own main control MCU using the UART serial port, and extracts chip status codes, voltage and temperature status codes, signal strength status codes, and antenna status codes from the hardware status register for analyzing the hardware status of the RF wireless communication module.

4. The method for remote detection of single-lamp faults according to claim 2, characterized in that, The internal detection instructions for the driver layer state include: internal loopback state detection instruction, RF parameter state detection instruction, bit error rate state detection instruction, and firmware version state detection instruction. The gateway pre-builds an AT instruction set through its own main control MCU. The gateway's own main control MCU obtains driver layer state data including internal loopback state, RF parameter state, bit error rate state, and firmware version state according to the AT instruction set, and converts the driver layer state data into corresponding status codes for analyzing the driver layer state of the RF wireless communication module.

5. The method for remote detection of single-lamp faults according to claim 2, characterized in that, The network protocol layer status internal detection instructions include: a local device liveness detection instruction and a single-lamp response protocol parsing instruction; wherein the local device liveness detection instruction sends a probe frame to its own RF wireless communication module through the first gateway, and the RF wireless communication module responds to the probe frame to obtain the network protocol layer status including the current network protocol diagnostic class, sequence symbol, and expected timeout time; and obtains the parsed single-lamp response format status through the single-lamp response protocol parsing instruction, converts the network protocol layer status into the corresponding status code, and determines whether the current network protocol layer is faulty based on the network protocol layer status and the single-lamp response format status.

6. The method for remote detection of single-lamp faults according to claim 1, characterized in that, When the first gateway detects and analyzes the data through its internal gateway instructions, if at least one of the gateway's own RF wireless communication module states meets the disconnection condition, the first gateway sends a multi-dimensional status code containing hardware layer status code, driver layer status code, and network protocol layer status code to the central controller. The central controller saves the multi-dimensional status code as historical data for RF wireless communication module fault analysis under different time series.

7. The method for remote detection of single-lamp faults according to claim 2, characterized in that, After the first gateway completes the internal detection of the hardware layer status, the internal detection of the driver layer status, and the detection of the network protocol layer status of the RF wireless communication module, if it determines that the RF wireless communication module status of the gateway itself does not meet the disconnection condition, the first gateway sends the second wireless detection information to the adjacent second lamp. When the second lamp receives the second wireless detection information, the second lamp sends the second wireless feedback information to the first lamp. If the first gateway can receive the second wireless feedback information, it generates a judgment of RF wireless communication module failure of the first lamp in the first network and uploads the RF wireless communication module failure message of the first lamp to the central controller.

8. The method for remote detection of single-lamp faults according to claim 1, characterized in that, If the first lamp does not receive wireless communication information from the first gateway within a preset time, the first lamp will send its collected self-information and RF wireless communication data with the first gateway to the adjacent second gateway or second lamp. After receiving the data sent by the first lamp, the second lamp will upload it to the central controller through the corresponding gateway.

9. A remote fault detection system for a single lamp, characterized in that, The system performs a remote detection method for single-lamp faults as described in any one of claims 1-8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that is executed by a processor to implement a remote detection method for a single lamp fault as described in any one of claims 1-8.

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