One-key intelligent substation optical fiber loop test method

Abstract

The application relates to the technical field of power system relay protection and automatic equipment maintenance, and discloses a one-key intelligent substation optical fiber loop test method. After the equipment is powered on and initialized, the method automatically enters an automatic test mode or a manual test mode according to the monitoring result of a test mode variable; after entering the test mode, test conditions of each optical port are monitored in turn according to the alternating order of the sending optical port and the receiving optical port, optical path on-off control and disconnection message reading operation are automatically performed on the optical port meeting the conditions, optical power data and the disconnection message are displayed on a liquid crystal panel in real time, the test conditions are skipped if not met, a test report is automatically generated and stored after the test is completed, and one-key calling and printing are supported. The application completely replaces the traditional manual optical fiber plugging operation mode, greatly improves the test efficiency, avoids optical fiber and equipment damage, realizes one-man and one-key optical fiber loop test, and has a good popularization and application prospect.

Description

Technical Field

[0001] This invention relates to the field of power system relay protection and automation equipment maintenance technology, specifically a one-click intelligent substation fiber optic loop testing method. Background Technology

[0002] With the rapid development of power systems, smart substations are becoming increasingly common, resulting in a huge workload for infrastructure construction, expansion, and technological upgrades. The number of fiber optic loops for relay protection and automation devices is growing exponentially, and the workload for acceptance testing is increasing dramatically. The tasks of optical power measurement and link break signal testing are heavy, and there is an urgent need for new equipment to improve acceptance efficiency.

[0003] Fiber optic circuit power measurement and link breakage signal testing is a repetitive and tedious process due to the large number of fiber optic circuits in smart substations and the limited space at the fiber optic circuit interfaces. Furthermore, it requires manually plugging and unplugging the receiving and transmitting fibers of each fiber optic circuit one by one, while ensuring the integrity of all other fiber optic circuits. This manual intervention causes continuity changes in the fiber optic circuits for power measurement and link breakage signal testing, which is time-consuming and labor-intensive. Because of the sheer number of fiber optic circuits, the process of plugging and unplugging each circuit is particularly tedious; the limited space at the fiber optic circuit interfaces and the coupling between the receiving and transmitting fibers make it easy to make mistakes during plugging and unplugging, potentially causing interruptions in other fiber optic circuits and damaging the fibers themselves, as well as the fiber optic interfaces of relay protection and automation devices.

[0004] Fiber optic loop power measurement and link break signal testing are crucial. Commissioning equipment with substandard optical power can pose hidden dangers, requiring maintenance of secondary or even primary equipment to address the defects. Interruptions in GOOSE and SV data transmission from fiber optic loops can lead to false alarms, malfunctions, or even failures to operate by relay protection and automation devices, posing a significant threat to the power grid. This equipment is specifically designed for fiber optic loop power measurement and link break signal testing in smart substations, making it essential for these applications.

[0005] Existing methods for measuring optical power in fiber optic loops and testing link break signals are relatively primitive. They involve manually plugging and unplugging the fiber optic loop connectors one by one to simulate the continuity of a fiber optic loop. This process needs to be repeated multiple times, and the human intervention factor is significant. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a one-click intelligent substation fiber optic loop testing method. This method automates and standardizes optical power measurement and link failure signal testing by replacing manual insertion and removal of optical fibers one by one with a one-click operation, significantly improving efficiency and avoiding misoperation and equipment damage. This solves the aforementioned technical problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a one-click intelligent substation fiber optic loop testing method, comprising the following steps: S1: The device is powered on and initialized. The control unit automatically reads the optical power data of each optical port and displays it on the LCD panel. At the same time, the test mode variable M is monitored in real time. S2: Based on the monitoring results of the test mode variable M, determine and enter the automatic test mode or the manual test mode, and provide operation prompts for the corresponding mode on the LCD panel; S3: After entering the test mode, the test conditions of each optical port are judged in turn according to the alternating order of the transmitting optical port and the receiving optical port. Based on the judgment results, optical path on / off control and link break message reading operations are performed on the optical ports that meet the test conditions until all optical ports have completed the condition judgment and test. S4: Based on the completion of all optical port tests, trigger the test end indication, and automatically generate and store a test report containing optical power data and link break messages; S5: Based on the operation instructions of the LCD panel, retrieve and print the test report.

[0008] As a preferred technical solution of the present invention, based on the monitoring result of the test mode variable M, it is determined and enters the automatic test mode or the manual test mode. Specifically, when the test mode variable M=1, the automatic test mode is entered. The LCD panel prompts the tester to check the preset settings of the optical loop transmitting port soft pressure plate and receiving soft pressure plate. The optical loop transmitting port soft pressure plate is represented as: xT1, xT2, xT3, ..., xTn, and the optical loop receiving port soft pressure plate is represented as: xR1, xR2, xR3, ..., xRn, where n=1~8. Setting the soft pressure plate to 1 indicates that the corresponding optical port participates in the test, and setting it to 0 indicates skipping. xT1, xT2, xT3, ..., xTn represent the optical loop test soft pressure plates of the 1st, 2nd, 3rd, and nth transmitting ports, respectively, and xR1, xR2, xR3, ..., xRn represent the optical loop test soft pressure plates of the 1st, 2nd, 3rd, and nth receiving ports, respectively.

[0009] When the test mode variable M=0, the manual test mode is entered. The LCD panel prompts the tester to press the corresponding test buttons in sequence. The test buttons include optical loop transmitting port test buttons and optical loop receiving port test buttons. The optical loop transmitting port test buttons are represented as: yT1, yT2, yT3, ..., yTn, and the optical loop receiving port test buttons are represented as: yR1, yR2, yR3, ..., yRn, where n=1~8. The state is set to 1 when the button is pressed, and 0 otherwise. yT1, yT2, yT3, ..., yTn represent the optical loop test buttons for the 1st, 2nd, 3rd, and nth transmitting ports, respectively, and yR1, yR2, yR3, ..., yRn represent the optical loop test buttons for the 1st, 2nd, 3rd, and nth receiving ports, respectively.

[0010] As a preferred embodiment of the present invention, the step S3, which sequentially determines whether the test conditions of each optical port are met, includes test operations in automatic test mode and test operations in manual test mode. The test operations in automatic test mode include the following steps: Step A1: The program monitors the status of the soft pressure plate corresponding to each optical port in the order of xT1, xR1, xT2, ..., xTn, xRn. Step A2: If the currently monitored soft pressure plate is set to 1, then the corresponding optical port is determined to be the optical port to be tested, and optical path on / off control and link break message reading operations are performed; Step A3: If the currently monitored soft pressure plate is set to 0, skip the corresponding optical port and continue monitoring the soft pressure plate of the next optical port; Step A4: After all optical port monitoring and testing are completed, the end indicator will light up, then the test report storage will begin, and the storage indicator will light up after storage is complete; The test operation in the manual test mode includes the following steps: Step B1: The program monitors the status of the test buttons corresponding to each optical port in the order of yT1, yR1, yT2, ..., yTn, yRn. Step B2: If the current monitored test button status is set to 1, then the corresponding optical port is determined to be the optical port to be tested, and optical path on / off control and link break message reading operations are performed. Step B3: If the status of the currently monitored test button is 0, skip the corresponding optical port and continue monitoring the test button of the next optical port; Step B4: After all optical port monitoring and testing are completed, the end indicator will light up, and then the test report storage will be started. After storage is completed, the storage indicator will light up.

[0011] As a preferred embodiment of the present invention, the optical path on / off control and link break message reading operations in steps A2 and B2 include the following steps: S3.1: Based on the judgment result, when the test conditions are met, the control unit controls the optical path corresponding to the optical port to be disconnected; S3.2: While disconnecting the optical port, read the corresponding link failure alarm signal message from the monitoring backend through the station control layer network communication interface; S3.3: If the link failure alarm signal message is successfully read, the link failure alarm signal message and the current optical power data are displayed on the LCD panel together; if the reading fails, message waiting or optical port test failure is indicated. S3.4: After completing the current optical port test, restore the optical path of the optical port and continue with the condition judgment and test of the next optical port.

[0012] Compared with existing technologies, this invention provides a one-click intelligent substation fiber optic loop testing method, which has the following advantages: 1. This invention solves the problems of relying on manual judgment and cumbersome operation steps in traditional methods by setting automatic test mode and manual test mode, and automatically entering the corresponding mode based on the monitoring results of test mode variables. It realizes the programmatic guidance and one-click start of the test process, which greatly reduces the operation threshold and human intervention factors.

[0013] 2. This invention automatically monitors the status of the soft pressure plate or test button of each optical port in alternating order of transmitting and receiving optical ports. For optical ports that meet the conditions, it automatically performs optical path on / off control and link break message reading operations, and automatically skips optical ports that do not meet the conditions. This completely replaces the traditional physical operation of manually plugging and unplugging optical fibers one by one, fundamentally avoiding mechanical wear of optical fiber connectors and device optical ports, eliminating the risk of accidentally touching or unplugging optical fibers in other operating loops, and significantly improving testing efficiency, shortening the testing work that originally took several hours to be completed within a few minutes. Attached Figure Description

[0014] Figure 1 This is a hardware schematic diagram of the present invention; Figure 2 This is a schematic diagram of the control unit of the present invention; Figure 3 This is a schematic diagram of the device of the present invention; Figure 4 This is a schematic diagram illustrating an application scenario; Figure 5 This is a schematic diagram of the process of the present invention. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1-5 A one-click testing method for fiber optic loops in intelligent substations includes the following steps: S1: The device is powered on and initialized. The control unit automatically reads the optical power data of each optical port and displays it on the LCD panel. At the same time, the test mode variable M is monitored in real time. S2: Based on the monitoring results of the test mode variable M, determine and enter the automatic test mode or the manual test mode, and provide operation prompts for the corresponding mode on the LCD panel; In S2, based on the monitoring results of the test mode variable M, it is determined whether to enter the automatic test mode or the manual test mode. Specifically, when the test mode variable M=1, the automatic test mode is entered. The LCD panel prompts the tester to check the preset settings of the optical loop transmitting port soft pressure plate and receiving soft pressure plate. The optical loop transmitting port soft pressure plate is represented as: xT1, xT2, xT3, ..., xTn, and the optical loop receiving port soft pressure plate is represented as: xR1, xR2, xR3, ..., xRn, where n=1~8. Setting the soft pressure plate to 1 indicates that the corresponding optical port participates in the test, and setting it to 0 indicates that it is skipped. xT1, xT2, xT3, ..., xTn represent the optical loop test soft pressure plates of the 1st, 2nd, 3rd, and nth transmitting ports, respectively, and xR1, xR2, xR3, ..., xRn represent the optical loop test soft pressure plates of the 1st, 2nd, 3rd, and nth receiving ports, respectively.

[0017] When the test mode variable M=0, the manual test mode is entered. The LCD panel prompts the tester to press the corresponding test buttons in sequence. The test buttons include optical loop transmitting port test buttons and optical loop receiving port test buttons. The optical loop transmitting port test buttons are represented as: yT1, yT2, yT3, ..., yTn, and the optical loop receiving port test buttons are represented as: yR1, yR2, yR3, ..., yRn, where n=1~8. The state is set to 1 when the button is pressed, and 0 otherwise. yT1, yT2, yT3, ..., yTn represent the optical loop test buttons for the 1st, 2nd, 3rd, and nth transmitting ports, respectively, and yR1, yR2, yR3, ..., yRn represent the optical loop test buttons for the 1st, 2nd, 3rd, and nth receiving ports, respectively.

[0018] S3: After entering the test mode, the test conditions of each optical port are judged in turn according to the alternating order of the transmitting optical port and the receiving optical port. Based on the judgment results, optical path on / off control and link break message reading operations are performed on the optical ports that meet the test conditions until all optical ports have completed the condition judgment and test. S3 sequentially determines whether the test conditions of each optical port are met, including test operations in automatic test mode and test operations in manual test mode. The test operations in automatic test mode include the following steps: Step A1: The program monitors the status of the soft pressure plate corresponding to each optical port in the order of xT1, xR1, xT2, ..., xTn, xRn. Step A2: If the currently monitored soft pressure plate is set to 1, then the corresponding optical port is determined to be the optical port to be tested, and optical path on / off control and link break message reading operations are performed; Step A3: If the currently monitored soft pressure plate is set to 0, skip the corresponding optical port and continue monitoring the soft pressure plate of the next optical port; Step A4: After all optical port monitoring and testing are completed, the end indicator will light up, then the test report storage will begin, and the storage indicator will light up after storage is complete; The test operation in the manual test mode includes the following steps: Step B1: The program monitors the status of the test buttons corresponding to each optical port in the order of yT1, yR1, yT2, ..., yTn, yRn. Step B2: If the current monitored test button status is set to 1, then the corresponding optical port is determined to be the optical port to be tested, and optical path on / off control and link break message reading operations are performed. Step B3: If the status of the currently monitored test button is 0, skip the corresponding optical port and continue monitoring the test button of the next optical port; Step B4: After all optical port monitoring and testing are completed, the end indicator will light up, and then the test report storage will be started. After storage is completed, the storage indicator will light up.

[0019] The optical path connection / disconnection control and link break message reading operations in steps A2 and B2 include the following steps: S3.1: Based on the judgment result, when the test conditions are met, the control unit controls the optical path corresponding to the optical port to be disconnected to simulate the interruption of the optical fiber loop; S3.2: While disconnecting the optical port, read the corresponding link failure alarm signal message from the monitoring backend through the station control layer network communication interface; S3.3: If the link failure alarm signal message is successfully read, the link failure alarm signal message and the current optical power data are displayed on the LCD panel together; if the reading fails, message waiting or optical port test failure is indicated. S3.4: After completing the current optical port test, restore the optical path of the optical port and continue with the condition judgment and test of the next optical port.

[0020] S4: Based on the completion of all optical port tests, trigger the test end indication, and automatically generate and store a test report containing optical power data and link break messages; S5: Based on the operation instructions of the LCD panel, retrieve and print the test report.

[0021] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A one-click intelligent substation fiber optic loop testing method, characterized in that: Includes the following steps: S1: The device is powered on and initialized. The control unit automatically reads the optical power data of each optical port and displays it on the LCD panel. At the same time, the test mode variable M is monitored in real time. S2: Based on the monitoring results of the test mode variable M, determine and enter the automatic test mode or the manual test mode, and provide operation prompts for the corresponding mode on the LCD panel; S3: After entering the test mode, the test conditions of each optical port are judged in turn according to the alternating order of the transmitting optical port and the receiving optical port. Based on the judgment results, optical path on / off control and link break message reading operations are performed on the optical ports that meet the test conditions until all optical ports have completed the condition judgment and test. S4: Based on the completion of all optical port tests, trigger the test end indication, and automatically generate and store a test report containing optical power data and link break messages; S5: Based on the operation instructions of the LCD panel, retrieve and print the test report.

2. The one-click intelligent substation fiber optic loop testing method according to claim 1, characterized in that: In step S2, based on the monitoring results of the test mode variable M, it is determined whether to enter the automatic test mode or the manual test mode. Specifically, when the test mode variable M=1, the automatic test mode is entered. The LCD panel prompts the tester to check the preset settings of the optical loop transmitting port soft pressure plate and receiving soft pressure plate. The optical loop transmitting port soft pressure plate is represented as: xT1, xT2, xT3, ..., xTn, and the optical loop receiving port soft pressure plate is represented as: xR1, xR2, xR3, ..., xRn, where n=1~8. Setting the soft pressure plate to 1 indicates that the corresponding optical port participates in the test, and setting it to 0 indicates skipping. xT1, xT2, xT3, ..., xTn represent the optical loop test soft pressure plates of the 1st, 2nd, 3rd, and nth transmitting ports, respectively. xR1, xR2, xR3, ..., xRn represent the optical loop test soft pressure plates of the 1st, 2nd, 3rd, and nth receiving ports, respectively. When the test mode variable M=0, the manual test mode is entered. The LCD panel prompts the tester to press the corresponding test buttons in sequence. The test buttons include optical loop transmitting port test buttons and optical loop receiving port test buttons. The optical loop transmitting port test buttons are represented as: yT1, yT2, yT3, ..., yTn, and the optical loop receiving port test buttons are represented as: yR1, yR2, yR3, ..., yRn, where n=1~8. The state is set to 1 when the button is pressed, and 0 otherwise. yT1, yT2, yT3, ..., yTn represent the optical loop test buttons for the 1st, 2nd, 3rd, and nth transmitting ports, respectively, and yR1, yR2, yR3, ..., yRn represent the optical loop test buttons for the 1st, 2nd, 3rd, and nth receiving ports, respectively.

3. The one-click intelligent substation fiber optic loop testing method according to claim 2, characterized in that: The step S3 sequentially determines whether the test conditions for each optical port are met, including test operations in automatic test mode and test operations in manual test mode. The test operations in automatic test mode include the following steps: Step A1: The program monitors the status of the soft pressure plate corresponding to each optical port in the order of xT1, xR1, xT2, ..., xTn, xRn. Step A2: If the currently monitored soft pressure plate is set to 1, then the corresponding optical port is determined to be the optical port to be tested, and optical path on / off control and link break message reading operations are performed; Step A3: If the currently monitored soft pressure plate is set to 0, skip the corresponding optical port and continue monitoring the soft pressure plate of the next optical port; Step A4: After all optical port monitoring and testing are completed, the end indicator will light up, then the test report storage will begin, and the storage indicator will light up after storage is complete; The test operation in the manual test mode includes the following steps: Step B1: The program monitors the status of the test buttons corresponding to each optical port in the order of yT1, yR1, yT2, ..., yTn, yRn. Step B2: If the current monitored test button status is set to 1, then the corresponding optical port is determined to be the optical port to be tested, and optical path on / off control and link break message reading operations are performed. Step B3: If the status of the currently monitored test button is 0, skip the corresponding optical port and continue monitoring the test button of the next optical port; Step B4: After all optical port monitoring and testing are completed, the end indicator will light up, and then the test report storage will be started. After storage is completed, the storage indicator will light up.

4. The one-click intelligent substation fiber optic loop testing method according to claim 3, characterized in that: The optical path on / off control and link break message reading operations in steps A2 and B2 include the following steps: S3.1: Based on the judgment result, when the test conditions are met, the control unit controls the optical path corresponding to the optical port to be disconnected; S3.2: While disconnecting the optical port, read the corresponding link failure alarm signal message from the monitoring backend through the station control layer network communication interface; S3.3: If the link failure alarm signal message is successfully read, the link failure alarm signal message and the current optical power data are displayed on the LCD panel together; if the reading fails, message waiting or optical port test failure is indicated. S3.4: After completing the current optical port test, restore the optical path of the optical port and continue with the condition judgment and test of the next optical port.

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