Cable multi-state sensing fault diagnosis and troubleshooting system and method thereof

Abstract

The invention discloses a cable multi-state sensing fault diagnosis and troubleshooting system and a method thereof, and particularly relates to the technical field of cable state monitoring, and the system comprises an information preprocessing module, a monitoring equipment setting module, a data acquisition module, a data analysis module, an abnormal response module, a display early warning module and a database. According to the method, the actual laying information and the historical fault frequency of each section of high-voltage cable are comprehensively considered, the risk areas of each section of high-voltage cable are divided, the monitoring equipment is reasonably distributed for each high-voltage cable in the risk areas of different levels, and the distribution reasonability and the performance balance of the monitoring equipment are improved. The requirements of power consumption performance and data secure transmission of monitoring equipment in different laying environments are met, and the overall stability and data reliability of the system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable status monitoring, and in particular to a cable multi-state sensing fault diagnosis and troubleshooting system and method thereof. Background Art

[0002] As the scale of high-voltage cables expands year by year, the demand for online cable monitoring equipment also grows. Online monitoring and fault diagnosis technology has become an indispensable technical means in the operation and maintenance of high-voltage cables. During the long-term operation of high-voltage power cables, faults often occur due to fluctuations in electrical parameters and abnormal environmental data. In order to timely and accurately identify the operating status of the cable and scientifically and rationally diagnose the causes of power cable failures, condition monitoring and fault diagnosis technologies provide effective means to help better understand the operating status of the equipment and improve the level of equipment maintenance. With the increasing requirements for the normal operation of high-voltage cables, these technologies play a vital role in the normal operation of the power grid and the reliability of power supply.

[0003] China's invention patent authorization document CN114295942B discloses a power cable fault diagnosis system, a power cable fault determination method and device, but the invention fails to fully consider the analysis of the reasonable installation points of each monitoring device. Specifically, there is a lack of risk factor evaluation of the cable based on the historical operation data and number of faults of each section of the high-voltage cable, which leads to unreasonable distribution of monitoring equipment. In actual operation, the detection performance of some high-voltage cable sections is insufficient, while the monitoring performance of some high-voltage cables is excessive, which not only fails to achieve effective monitoring of high-voltage cables, but also may cause redundant equipment and fail to meet actual needs. In addition, the prior art also ignores the impact of the distribution location of monitoring equipment on the amount of data collection and the communication environment, and fails to achieve intelligent communication mode switching. As a result, some monitoring devices have excessive power consumption or data loss, and cannot effectively transmit data in various environments, which leads to insufficient monitoring of high-voltage cables, and cannot detect faults in time and repair them, thereby increasing the risk of high-voltage cable failures. Summary of the invention

[0004] The present invention proposes a cable multi-state perception fault diagnosis and troubleshooting system and method, aiming to provide a cable multi-state perception fault diagnosis and troubleshooting system and method, by comprehensively analyzing the operating data and environmental data of the high-voltage cable, so as to achieve accurate diagnosis and timely warning of cable faults. The present invention also has the following sub-purposes: the system calculates the fault risk coefficient through real-time monitoring of the cable, and reasonably distributes the monitoring equipment according to the risk level, optimizes the data acquisition cycle and communication method, thereby improving the rationality of the deployment of the monitoring equipment and the stability of data transmission; through intelligent analysis of electrical and environmental parameter data, the system can identify abnormal parameters and implement corresponding response measures, generate fault reports and status diagrams, so as to timely warn and notify maintenance personnel to handle the fault. Ultimately, the present invention aims to improve the accuracy and efficiency of cable monitoring, reduce the risk of high-voltage cable failures, and ensure the safe and stable operation of the power grid.

[0005] The present invention proposes a cable multi-state perception fault diagnosis and troubleshooting system, which includes: a monitoring equipment setting module, which analyzes cable data or generates risk assessment results, calculates equipment step-by-step conditions and sets a data acquisition cycle; a data acquisition module, which generates electrical parameter characteristic values ​​and environmental data based on the data acquisition cycle; wherein the system analyzes abnormal parameters and implements abnormal responses based on the electrical parameter characteristic values ​​and environmental data.

[0006] Preferably, the system includes a database, which extracts the standard operating range of each electrical parameter of the high-voltage cable according to the electrical parameter characteristic value; and includes a data analysis module, which compares the electrical parameter characteristic value with the standard operating range, and generates abnormal parameters if they do not match.

[0007] Preferably, the system extracts the laying drawings of the cables to be monitored from the database according to the cable numbers to be monitored input by the user, and obtains the cable data according to the laying drawings.

[0008] Preferably, the system comprises an information preprocessing module, which calculates the fault risk coefficient of the cable according to the cable data and generates a risk assessment result.

[0009] Preferably, the system includes an abnormal response module, which obtains the coordinate position information of the abnormal cable according to the abnormal parameters, generates a fault report and submits it to the high-voltage cable maintenance personnel.

[0010] Preferably, the system comprises a display and early warning module, which constructs a status diagram of the entire high-voltage cable line according to the fault report, displays the fault location of the entire high-voltage cable line and issues an early warning.

[0011] The present invention proposes a cable multi-state perception fault diagnosis and troubleshooting method, which is applied to the above-mentioned cable multi-state perception fault diagnosis and troubleshooting system, and the method includes: inputting the cable number to be detected; calculating the fault risk coefficient; setting the equipment distribution and data collection cycle; selecting the communication mode and collecting data; analyzing the electrical and environmental parameters; if there are abnormal parameters, updating the state diagram and sending a fault report to the maintenance personnel.

[0012] Preferably, the method updates the cable-related data in the database in real time according to the calculated fault risk coefficient.

[0013] Preferably, the method generates and executes an exception response according to the exception parameters.

[0014] Preferably, the abnormal response is based on the abnormal parameters of each section of the high-voltage cable, obtains the number of the monitoring equipment of each abnormal parameter of each section of the high-voltage cable, and uses the distribution position of each monitoring equipment of each section of the high-voltage cable to obtain the coordinate position information of each abnormal parameter of each section of the high-voltage cable.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention comprehensively considers the actual laying information and historical fault times of each section of high-voltage cable, calculates the risk coefficient of each section of high-voltage cable, and divides the risk area of ​​each section of high-voltage cable, so as to facilitate the subsequent reasonable distribution of monitoring equipment for each high-voltage cable in risk areas of different levels, and improve the rationality of the distribution of monitoring equipment and the balance of performance.

[0017] 2. The present invention comprehensively considers the actual laying environment of high-voltage cables and adopts optional monitoring sensors to meet the data monitoring requirements of high-voltage cables under different laying environments, thereby improving the reusability of the multi-state perception fault troubleshooting system of high-voltage cables.

[0018] 3. The present invention comprehensively considers the data collection volume of each monitoring device of each section of high-voltage cable and the distribution location information of each monitoring device, and intelligently matches the communication mode of each monitoring device. It can effectively meet the power consumption performance and data security transmission requirements of the monitoring equipment in different laying environments, and improve the overall stability of the system and data reliability.

[0019] 4. The present invention constructs a status diagram of the entire high-voltage cable line, takes each monitoring device of each section of the high-voltage cable as a node, and after obtaining a fault report of each section of the high-voltage cable, uses different color marks to display each abnormal parameter of each section of the high-voltage cable, implements display and early warning of the status of each section of the high-voltage cable, improves the intuitiveness of the system data display, and facilitates high-voltage cable maintenance technicians to respond in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a system structure connection diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the method flow of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] For ease of understanding, some professional names of the present invention are explained below:

[0025] 4G communication module, an electronic module that integrates the fourth generation of wireless communication technology, can provide high-speed and stable wireless communication connections for various devices. Through the 4G module, the device can access the mobile communication network to achieve real-time data transmission and remote control. This module usually has a small size and supports standardized interfaces to facilitate embedding in various devices.

[0026] The WIFI communication module enables the sending and receiving of data between devices through a wireless network (such as a home Wi-Fi network or the Internet). It supports IP-based protocols (such as TCP / IP, UDP, etc.), enabling devices to communicate with other devices in a local area network (LAN) or wide area network (WAN).

[0027] NB-IoT communication module, referring to narrowband Internet of Things, is a low-power wide area network (LPWAN) technology based on cellular networks, which is designed to provide wide coverage and high connection density data transmission solutions for low-power devices.

[0028] A cable joint point refers to a device used to connect different sections of cables in a power system. It is usually used in high-voltage transmission and distribution lines to ensure that power is transmitted from one section of cable to another and to maintain the continuity of the system. Its main function is to achieve electrical connection between cables, ensure stable transmission of electrical energy, and ensure the safety, reliability and durability of the joints.

[0029] Gateway devices connect networks of different types or with different protocols and provide functions such as protocol conversion, data forwarding, and network security. Gateways act as a bridge in computer networks, connecting different networks or subnets so that they can communicate with each other.

[0030] Embodiment 1.

[0031] Reference Figure 1 As shown, the first aspect of the present invention provides a cable multi-state perception fault diagnosis and troubleshooting system, including: an information preprocessing module, which is used to obtain various information data and historical fault times of each section of high-voltage cable laying according to the number of the high-voltage cable to be monitored input by the user, calculate the fault risk coefficient of each section of the high-voltage cable, and evaluate the regional risk level of each section of the high-voltage cable.

[0032] The monitoring equipment setting module is used to set the distribution and numbering of each monitoring equipment of each section of high-voltage cable according to the information data and fault risk coefficient of each section of high-voltage cable, set the data collection cycle of each monitoring equipment of each section of high-voltage cable, and match the communication mode of each monitoring equipment of each section of high-voltage cable.

[0033] The data acquisition module is used to obtain the characteristic values ​​of electrical parameters and environmental data of each monitoring device of each section of the high-voltage cable at each acquisition time point according to the data acquisition cycle of each monitoring device of each section of the high-voltage cable.

[0034] The data analysis module obtains the abnormal electrical parameters of each section of the high-voltage cable based on the characteristic values ​​of each electrical parameter of each monitoring device at each collection time point of each section of the high-voltage cable, and obtains the abnormal environmental parameters of each section of the high-voltage cable based on the environmental data of each monitoring device at each collection time point of each section of the high-voltage cable, and analyzes and obtains the abnormal parameters of each section of the high-voltage cable.

[0035] The abnormal response module implements abnormal response measures corresponding to each abnormal parameter of each section of high-voltage cable.

[0036] The display warning module is used to construct a status diagram of the entire high-voltage cable line, match the color marks corresponding to the abnormal parameters of each section of the high-voltage cable from the database, display the fault location of the entire high-voltage cable line, and issue a warning.

[0037] The database is used to store the laying drawings of each high-voltage cable to be monitored, the allowable number of turns of the high-voltage cable, the design service life of the high-voltage cable, the allowable number of failures of the high-voltage cable, the various level intervals of the failure risk coefficient, the historical working current of each section of the high-voltage cable, the current judgment interval of the high-voltage cable that affects the spacing scale of the monitoring equipment, the data communication distance judgment threshold of the 4G communication module, the appropriate maximum data communication distance of the Wi-Fi communication module, and the appropriate interval of the NB-LoT communication module, the standard working interval of each electrical parameter characteristic value, the standard working interval of each environmental data, and the influencing factor of the unit number of turns of the high-voltage cable.

[0038] It should be noted that, in a specific embodiment, the information preprocessing module is connected to the monitoring device setting module, the monitoring device setting module is connected to the data acquisition module, the data acquisition module is connected to the data analysis module, the data analysis module is connected to the abnormal response module, the abnormal response module is connected to the data display module, and the database is connected to the information preprocessing module, the information preprocessing module, the monitoring device setting module, and the data display module.

[0039] In a specific embodiment of the present invention, the failure risk coefficient of each section of the high-voltage cable is calculated, and the regional risk level of each section of the high-voltage cable is evaluated. The specific analysis method is as follows: based on the number of the high-voltage cable to be monitored, the laying drawings of the high-voltage cable to be monitored corresponding to the number are extracted from the database, and according to the cable travel direction in the laying drawings of the high-voltage cable to be monitored, the position of the high-voltage cable connector is used as the dividing point, and the high-voltage cable to be monitored is divided into each section of the high-voltage cable, and the length L of each section of the high-voltage cable is obtained. i , number of turns Z i 、Service life Y i and laying environment type, obtain the information data of each section of high-voltage cable, and extract the historical fault number N of each section of high-voltage cable from the database i , where i = 1, 2, ..., m, i represents the number of each section of the high-voltage cable, and m represents the total number of sections into which the high-voltage cable is divided.

[0040] It should be noted that, in a specific embodiment, the laying environment type of each section of the high-voltage cable is obtained according to specific construction requirements, for example, common ones include above-ground laying and underground laying.

[0041] Based on the number of turns Z of each section of high-voltage cable i 、Service life Y i and the number of historical failures N i , through the formula: , calculate the fault risk coefficient α of each section of high-voltage cable i , where ζ represents the influence factor of the number of unit turns of high-voltage cables extracted from the database, Y i′ represents the design service life of the high-voltage cable extracted from the database, N′ i Represents the allowable number of failures of the high-voltage cable extracted from the database.

[0042] If α i If the fault risk is in the first interval, the regional risk level of the i-th section of high-voltage cable is determined to be high risk.

[0043] If α i If the fault risk is in the second interval, the regional risk level of the i-th section of high-voltage cable is determined to be medium risk.

[0044] If α i If the fault risk is in the third interval, the regional risk level of the i-th section of high-voltage cable is judged to be low risk.

[0045] It should be noted that, in a specific embodiment, the first interval, the second interval, and the third interval of the fault risk coefficient do not refer to a priority in the relationship, but are just for the convenience of describing the differences between the intervals. The first interval, the second interval, and the third interval of the fault risk coefficient are divided according to a comprehensive evaluation conducted by high-voltage cable status monitoring technicians based on historical information data of the high-voltage cable, the number of historical faults, and the impact of the high-voltage cable faults caused, and are stored in a database.

[0046] Similarly, the regional risk level of each section of high-voltage cable is obtained.

[0047] In a specific embodiment of the present invention, the distribution and numbering of each monitoring device of each section of the high-voltage cable are set, and the specific analysis method is: extracting the historical working current of each section of the high-voltage cable from the database, performing mean processing, and obtaining the historical working average current I of each section of the high-voltage cable i , through the formula: Get the monitoring equipment spacing scale μ of each section of high-voltage cable i , where [I - ,I + ] represents the current judgment interval of the high-voltage cable that affects the spacing scale of the monitoring equipment stored in the database.

[0048] Based on the length L of each section of high-voltage cable i , through the formula: Calculate the distribution number λ of monitoring equipment for each section of high-voltage cable i , the first cable joint in the direction of travel of the i-th section of high-voltage cable is taken as the first monitoring equipment distribution position, and the monitoring equipment spacing scale μ i , and set up the monitoring equipment in the direction of the cable travel in sequence until the λ iThe distribution setting of each monitoring device is based on the number and distribution position sequence of the high-voltage cable where each monitoring device is located, and the number of each monitoring device of each section of the high-voltage cable is set.

[0049] It should be noted that, in a specific embodiment, the in represents the upward rounding function, if L i =18, L i =5, then λ i =4, the first cable joint in the direction of travel of the i-th section of high-voltage cable is preferentially taken as the first monitoring equipment distribution position, and 4 monitoring devices are laid forward in sequence.

[0050] It should be noted that, in a specific embodiment, the monitoring equipment of each section of the high-voltage cable of the device is numbered, for example, the monitoring equipment of the second distribution position of the third section of the high-voltage cable is numbered as x0302.

[0051] Similarly, complete the distribution setting of each monitoring equipment for each section of high-voltage cable.

[0052] The present invention comprehensively considers the actual laying information and historical fault times of each section of high-voltage cable, calculates the risk coefficient of each section of high-voltage cable, and divides the risk area of ​​each section of high-voltage cable, thereby facilitating the subsequent reasonable distribution of monitoring equipment for each high-voltage cable in risk areas of different levels, thereby improving the rationality of the distribution of monitoring equipment and the balance of performance.

[0053] In a specific embodiment of the present invention, the data collection period of each monitoring device of each section of the high-voltage cable is set, and the specific analysis method is: based on the regional risk level of each section of the high-voltage cable, if the regional risk level of the i-th section of the high-voltage cable is high risk, then the data collection period T of each monitoring device of the i-th section of the high-voltage cable is set. i Set to t 1 .

[0054] If the regional risk level of the i-th section of high-voltage cable is medium risk, the data collection period T of each monitoring device of the i-th section of high-voltage cable is i Set to t 2 .

[0055] If the regional risk level of the i-th section of high-voltage cable is low risk, the data collection period T of each monitoring device of the i-th section of high-voltage cable is i Set to t 3 .

[0056] Similarly, the data collection period T of each monitoring device of each section of high-voltage cable is obtained. i .

[0057] It should be noted that, in a specific embodiment, the data collection period of each monitoring device is t1 ,t 2 ,t 3 It is preset by high-voltage cable status monitoring technicians according to the historical working status of each section of high-voltage cable, stored in the database, and needs to meet t 1 >t 2 >t 3 .

[0058] In a specific embodiment of the present invention, the communication mode of each monitoring device matching each section of high-voltage cable is specifically analyzed as follows: the communication mode of each monitoring device matching each section of high-voltage cable includes a 4G communication module, a WIFI communication module, and a NB-IoT communication module.

[0059] By formula: d ip =μ i *p, calculate the distance d between each monitoring device of each section of high-voltage cable and the first monitoring device of the section of high-voltage cable set in the direction of travel of the high-voltage cable ip , where p = 1, 2, ..., R, p represents the serial number of each monitoring device of the i-th section of the high-voltage cable, and R represents the total number of monitoring devices of the i-th section of the high-voltage cable.

[0060] Based on the regional risk level of each section of high-voltage cable, if the regional risk level of the i-th section of high-voltage cable is high risk, the model is: where d ik Indicates the distance between any monitoring device of the i-th high-voltage cable and the first monitoring device of the same high-voltage cable. k∈[1,R] indicates any subscript value in [1,R] that matches the communication mode of each monitoring device of the i-th high-voltage cable. (noun) i ,in represents the suitable data communication distance interval of the 4G communication module extracted from the database, where Indicates the appropriate data communication distance interval of the Wi-Fi communication module extracted from the database.

[0061] It should be noted that, in a specific embodiment, the communication mode is selected based on the distance between any monitoring device of the i-th section of the high-voltage cable and the first monitoring device of the section of the high-voltage cable. This is because it is necessary to judge the distance between each monitoring device of each section of the high-voltage cable and the gateway device to select the communication mode to ensure effective transmission of data. The gateway device of each section of the high-voltage cable is installed at a monitoring device position of each section of the high-voltage cable.

[0062] If the regional risk level of the i-th section of high-voltage cable is medium risk, then through the model: Match the communication mode of each monitoring device of the i-th section of high-voltage cable (noun) i ,in Indicates the suitable data communication distance interval of the NB-LoT communication module extracted from the database.

[0063] If the regional risk level of the i-th section of high-voltage cable is low risk, then the model: Match the communication mode of each monitoring device of the i-th section of high-voltage cable (noun) i .

[0064] Similarly, the communication method of each monitoring device matching each section of high-voltage cable is adopted.

[0065] It should be noted that, in a specific embodiment, the suitable data communication distance intervals of the 4G communication module, Wi-Fi communication module, and NB-LoT communication module are obtained according to the production specifications of each communication module manufacturer and stored in a database.

[0066] The present invention comprehensively considers the data collection volume of each monitoring device of each section of high-voltage cable and the distribution location information of each monitoring device, and intelligently matches the communication mode of each monitoring device. It can effectively meet the power consumption performance and data security transmission requirements of the monitoring equipment in different laying environments, and improve the overall stability of the system and data reliability.

[0067] In a specific embodiment of the present invention, the electrical parameter characteristic values ​​and environmental data of each monitoring device of each section of high-voltage cable at each collection time point are obtained, and the specific analysis method is that the electrical parameter characteristic values ​​include the electrical parameter characteristic values ​​collected by the first group of electrical sensors and the electrical parameter characteristic values ​​collected by the second group of electrical sensors.

[0068] The environmental data include environmental data collected by the first group of environmental sensors and environmental data collected by the second group of environmental sensors.

[0069] The first group of electrical sensors includes a voltage sensor, a current sensor, and a high-voltage direct current leakage current sensor.

[0070] The second group of electrical sensors includes high-frequency current sensors and ultrasonic sensors.

[0071] The first group of environmental sensors includes a temperature sensor, a humidity sensor, and a vibration sensor.

[0072] The second group of environmental sensors includes a temperature sensor, a soil moisture sensor, a pH meter, a soil conductivity sensor, a soil thermal conductivity sensor, and a pressure sensor.

[0073] It should be noted that, in a specific embodiment, the characteristic values ​​of electrical parameters collected by the first group of electrical sensors include the voltage, current, and insulation resistance of the cable collected by the electrical sensors, and the cable temperature collected by the temperature sensor; the characteristic values ​​of electrical parameters collected by the second group of electrical sensors include high-frequency current pulses collected by high-frequency current sensors and sound wave signals collected by ultrasonic sensors.

[0074] The environmental data collected by the first group of environmental sensors include the ambient temperature collected by the temperature sensor, the ambient humidity collected by the humidity sensor, and the vibration frequency collected by the vibration sensor. The environmental data collected by the second group of environmental sensors include the soil moisture collected by the soil moisture sensor, the soil pH value collected by the pH meter, the soil electrical conductivity collected by the soil conductivity sensor, the soil thermal conductivity collected by the soil thermal conductivity sensor, and the soil pressure collected by the pressure sensor.

[0075] Based on the laying environment type of each section of high-voltage cable, the sensors carried by each monitoring device of each section of high-voltage cable are selected. For example, if a section of high-voltage cable is laid above ground, each monitoring device is equipped with a first group of electrical sensors and a first group of environmental sensors. If a section of high-voltage cable is laid underground, each monitoring device is equipped with a second group of electrical sensors and a second group of environmental sensors to obtain the characteristic values ​​of various electrical parameters and various environmental data of each monitoring device of each section of high-voltage cable at each collection time point.

[0076] The present invention comprehensively considers the actual laying environment of the high-voltage cable, adopts optional monitoring sensors, meets the data monitoring requirements of the high-voltage cable under different laying environments, and improves the reusability of the multi-state perception fault troubleshooting system of the high-voltage cable.

[0077] In a specific embodiment of the present invention, the analysis obtains various abnormal parameters of each section of the high-voltage cable, and the specific analysis method is: based on the characteristic values ​​of each electrical parameter of each monitoring device of each section of the high-voltage cable at each acquisition time point, the standard working range of each electrical parameter of the high-voltage cable is extracted from the database; if there is a mismatch between the characteristic values ​​of each electrical parameter of each monitoring device of each section of the high-voltage cable at each acquisition time point and the standard working range of each electrical parameter of the high-voltage cable, the mismatched electrical parameters are recorded as abnormal electrical parameters to obtain the abnormal electrical parameters of each section of the high-voltage cable.

[0078] Similarly, the abnormal environmental parameters of each section of the high-voltage cable are obtained.

[0079] The abnormal electrical parameters and abnormal environmental parameters of each section of the high-voltage cable are combined to obtain the abnormal parameters of each section of the high-voltage cable.

[0080] In a specific embodiment of the present invention, the specific analysis method for implementing the abnormal response measures corresponding to each abnormal parameter is as follows: based on the abnormal parameters of each section of the high-voltage cable, the number of the monitoring equipment of each abnormal parameter of each section of the high-voltage cable is obtained, and the coordinate position information of each abnormal parameter of each section of the high-voltage cable is obtained by using the distribution position of each monitoring equipment of each section of the high-voltage cable.

[0081] It should be noted that, in a specific embodiment, if the monitoring parameter obtained by the second monitoring device of the third section of the high-voltage cable is an abnormal parameter, the number of its monitoring device is obtained, for example, x0302, and the location information of the high-voltage cable joint point in the direction of travel of the third section of the high-voltage cable is first obtained, and then the location information of the high-voltage cable joint point in the direction of travel of the third section of the high-voltage cable is obtained according to the monitoring device spacing scale μ i , through the formula 2*μ i , calculate and obtain the distance between each abnormal parameter of each section of the high-voltage cable and the location distance information of the high-voltage cable joint point in the traveling direction of the third section of the high-voltage cable.

[0082] Based on the coordinate position information and the abnormal parameters of each section of the high-voltage cable, a fault report of each section of the high-voltage cable is generated and submitted to the high-voltage cable maintenance personnel.

[0083] In a specific embodiment of the present invention, the state diagram of the entire high-voltage cable line is constructed, and the specific analysis method is: based on the laying drawings of the high-voltage cables and the distribution positions of the monitoring equipment of each section of the high-voltage cable, the state diagram of the entire high-voltage cable line is generated in the display and early warning module.

[0084] Based on the fault reports of each section of high-voltage cable, the color marks corresponding to the abnormal parameters of each section of high-voltage cable are matched from the database to display the fault location of the entire section of high-voltage cable and issue an early warning.

[0085] The present invention constructs a status diagram of the entire high-voltage cable line, takes each monitoring device of each section of the high-voltage cable as a node, and after obtaining a fault report of each section of the high-voltage cable, uses different color marks to display each abnormal parameter of each section of the high-voltage cable, so as to display and warn the status of each section of the high-voltage cable in real time, improve the intuitiveness of the system data display, and facilitate high-voltage cable maintenance technicians to respond in time.

[0086] Embodiment 2.

[0087] Reference Figure 2 As shown, the second aspect of the present invention provides a method for executing a cable multi-state perception fault diagnosis and troubleshooting system.

[0088] First, the user enters the cable number to be tested so that the system can extract relevant cable information and historical data from the database. These data include cable laying drawings, historical fault records, etc., which serve as the basis for subsequent analysis.

[0089] Next, the system calculates the cable's fault risk factor. This step evaluates the cable's regional risk level by analyzing factors such as the cable's historical operating data, number of faults, age, and number of turns. Based on the risk level, the system optimizes the distribution of monitoring equipment to ensure a higher density of equipment in high-risk areas, thereby improving the effectiveness of monitoring.

[0090] After the equipment distribution is set up, the system adjusts the data collection cycle according to the risk level of the cable. The data collection cycle in high-risk areas is shorter to capture possible fault signs in time. The collection cycle can be extended in low-risk areas to save resources. After that, the system selects the appropriate communication method to ensure data transmission stability and efficiency in different environments.

[0091] Entering the data collection phase, the system collects the electrical parameters and environmental data of the cable through the configured monitoring equipment. These data include voltage, current, temperature, humidity, etc., which are acquired in real time through sensors. After the data collection is completed, the system enters the analysis phase to analyze the collected electrical and environmental parameters and identify any abnormal parameters.

[0092] If an abnormal parameter is detected, the system will update the cable status map and generate a detailed fault report. The report not only points out the specific location and nature of the fault, but also provides recommended response measures. The report is automatically sent to the technician responsible for maintenance, ensuring that the problem can be resolved in the shortest possible time.

[0093] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A cable multi-state sensing fault diagnosis and troubleshooting system, characterized in that: The system comprises: Monitoring equipment setup module, analyzes cable data or generated risk assessment results, calculates equipment step status and sets data collection cycle; A data acquisition module generates electrical parameter characteristic values ​​and environmental data according to the data acquisition cycle; The system analyzes abnormal parameters and implements abnormal responses based on the electrical parameter characteristic values ​​and environmental data.

2. A cable multi-state sensing fault diagnosis and troubleshooting system according to claim 1, characterized in that: The system includes a database, which extracts the standard working range of each electrical parameter of the high-voltage cable according to the electrical parameter characteristic value; and includes a data analysis module, which compares the electrical parameter characteristic value with the standard working range, and generates abnormal parameters if they do not match.

3. A cable multi-state sensing fault diagnosis and troubleshooting system according to claim 1, characterized in that: The system extracts the laying drawings of the cables to be monitored from the database according to the cable numbers to be monitored input by the user, and obtains the cable data according to the laying drawings.

4. A cable multi-state sensing fault diagnosis and troubleshooting system according to claim 1 or 3, characterized in that: The system includes an information preprocessing module, which calculates the fault risk coefficient of the cable according to the cable data and generates a risk assessment result.

5. A cable multi-state sensing fault diagnosis and troubleshooting system according to claim 1 or 2, characterized in that: The system includes an abnormal response module, which obtains the coordinate position information of the abnormal cable according to the abnormal parameters, generates a fault report and submits it to the high-voltage cable maintenance personnel.

6. A cable multi-state sensing fault diagnosis and troubleshooting system according to claim 5, characterized in that: The system includes a display and early warning module, which constructs a status diagram of the entire high-voltage cable line according to the fault report, displays the fault location of the entire high-voltage cable line and issues an early warning.

7. A cable multi-state sensing fault diagnosis and troubleshooting method, the method is applied to a cable multi-state sensing fault diagnosis and troubleshooting system according to any one of claims 1 to 6, characterized in that: The method comprises: inputting the cable number to be detected; calculating the fault risk coefficient; setting the equipment distribution and data collection cycle; selecting the communication mode and collecting data; analyzing the electrical and environmental parameters; if there are abnormal parameters, updating the state diagram and sending a fault report to the maintenance personnel.

8. A cable multi-state sensing fault diagnosis and troubleshooting method according to claim 7, characterized in that: The method updates the cable-related data in the database in real time according to the calculated fault risk coefficient.

9. A cable multi-state sensing fault diagnosis and troubleshooting method according to claim 7, characterized in that: The method generates and executes an exception response according to the exception parameters.

10. A cable multi-state sensing fault diagnosis and troubleshooting method according to claim 9, characterized in that: The abnormal response is based on the abnormal parameters of each section of the high-voltage cable, obtains the number of the monitoring equipment of each abnormal parameter of each section of the high-voltage cable, and uses the distribution position of each monitoring equipment of each section of the high-voltage cable to obtain the coordinate position information of each abnormal parameter of each section of the high-voltage cable.

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