Intelligent grounding wire reliability detection method and system based on Lora communication

Abstract

The invention relates to the technical field of measuring electrical variables, and specifically discloses a reliability detection method and system for an intelligent grounding wire based on Lora communication, including evaluating the Lora communication between a host end of an intelligent grounding wire and a slave end, judging whether the Lora communication status between the host end and the slave end of the intelligent grounding wire is reliable, evaluating a grounding terminal of an intelligent grounding wire whose Lora communication status between the host end and the slave end is reliable, judging whether the grounding terminal status of the intelligent grounding wire is reliable, and evaluating the working and hanging detection status of a connection terminal of an intelligent grounding wire whose grounding terminal status is reliable, judging whether the status of the intelligent grounding wire is reliable. The invention solves the problem that a traditional detection method relies on a low-precision sensor and that data analysis and processing technology are insufficient, helps to improve the stability and reliability of the entire system, reduce safety hazards caused by communication failures, promptly discover and locate potential failures, ensure that problems are identified and resolved as early as possible, and maintain the normal operation of a grounding system.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring electrical variables, and in particular to a Lora communication-based intelligent grounding wire reliability detection method and system. Background Art

[0002] Portable grounding wires are very important tools in power construction operations. Correct use of grounding wires can prevent electrostatic induction and electric shock from nearby charged objects, and can ensure the safety of the working area when the switch is closed by mistake. Incorrect use of grounding wires will bring serious safety hazards to operators and power grid operations. Common errors in the use of grounding wires mainly include: incorrect grounding working position, unreliable grounding wire connection, and failure to remove the grounding wire after the construction work is completed. From the perspective of safety management and control, the main body of power construction operations urgently needs to adopt a reliable grounding wire usage status monitoring method, verify the usage status of the grounding wire, and provide timely reminders when the grounding wire is used incorrectly to avoid worsening consequences.

[0003] For example, Chinese invention patent application CN112713423A discloses a portable grounding wire status monitoring device and method, including a monitoring body and a wire clamping detection module and a copper wire detection module connected to the monitoring body, and the monitoring body includes a logic processing module and a positioning detection module and a grounding position detection module connected to the logic processing module. The portable grounding wire status monitoring device uses a logic processing module to analyze the detection data and status information of the wire clamping detection module, the copper wire detection module, the positioning detection module and the grounding position detection module to determine the status of the portable grounding wire, which can assist operators in confirming the normal use of the grounding wire, and avoid the hidden dangers to the personal safety of operators and the safety of power grid operation caused by incorrect hanging position, looseness, or missing removal of the grounding wire, and solves the technical problem that the existing platform for monitoring the grounding wire cannot timely obtain the abnormal status of the grounding wire.

[0004] Nowadays, there are still some shortcomings in the research on the reliability detection method of intelligent grounding wire based on Lora communication. Specifically, the traditional detection method has deficiencies in data analysis and processing technology, which may make it impossible for staff to accurately judge the true status of the grounding wire. For example, if a fault or dangerous condition is not discovered in time, it may cause safety hazards. The inaccuracy of the detection results may cause the system to frequently generate false alarms, wasting human resources for investigation and maintenance. The insufficient data analysis and processing capabilities restrict the extraction and utilization of status information, resulting in a lack of necessary data support in the decision-making process, affecting the efficiency and effectiveness of fault handling. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an intelligent grounding wire reliability detection method and system based on Lora communication, which can effectively solve the problems involved in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The first aspect of the present invention provides a reliability detection method for an intelligent grounding wire based on Lora communication, comprising the following steps: evaluating the Lora communication between the host end and the slave end of the intelligent grounding wire to determine whether the Lora communication status between the host end and the slave end of the intelligent grounding wire is reliable, wherein the slave end is arranged at the grounding end and the wiring end; evaluating the grounding terminal of the intelligent grounding wire whose Lora communication status between the host end and the slave end is reliable to determine whether the state of the grounding terminal of the intelligent grounding wire is reliable; evaluating the working and hanging detection state of the wiring terminal of the intelligent grounding wire whose grounding terminal state is reliable to determine whether the state of the intelligent grounding wire is reliable.

[0007] As a further method, the Lora communication between the host end and the slave end of the intelligent grounding wire is evaluated to determine whether the Lora communication status between the host end and the slave end of the intelligent grounding wire is reliable. The specific analysis process is: obtaining the Lora communication status data set between the host end and the slave end, and based on the obtained Lora communication status data set between the host end and the slave end, a comprehensive analysis is performed to obtain the evaluation value of the Lora communication status between the host end and the slave end. The evaluation value of the Lora communication status between the host end and the slave end is used as the analysis basis for judging whether the Lora communication status between the host end and the slave end of the intelligent grounding wire is reliable; comparing the evaluation value of the Lora communication status between the host end and the slave end with the The host-side and slave-Lora communication status reference evaluation value stored in the database is compared; if the host-side and slave-Lora communication status evaluation value is higher than or equal to the host-side and slave-Lora communication status reference evaluation value, the host-side and slave-Lora communication status of the intelligent grounding wire corresponding to the host-side and slave-Lora communication status evaluation value is reliable; if the host-side and slave-Lora communication status evaluation value is lower than the host-side and slave-Lora communication status reference evaluation value, the host-side and slave-Lora communication status of the intelligent grounding wire corresponding to the host-side and slave-Lora communication status evaluation value is unreliable.

[0008] As a further method, the host-slave Lora communication status data set includes the host-slave Lora communication transmission power, the host-slave Lora communication transmission effective load, the host-slave Lora communication network bandwidth, and the host-slave Lora communication transmission delay.

[0009] As a further method, the communication status evaluation value between the host and the slave Lora, the specific analysis process is:

[0010] ;

[0011] In the formula, It is the evaluation value of the communication status between the host and the slave Lora. The transmission power of the host and slave Lora communication. The effective load transmitted between the host and the slave Lora communication. The bandwidth of the Lora communication network between the host and the slave. It is the transmission delay of the host and slave Lora communication. is the compensation factor for the transmission power of the Lora communication between the host and the slave. The compensation factor for the effective load of the communication between the host and the slave Lora is set. is the compensation factor for the bandwidth of the Lora communication network between the host and the slave. It is the compensation factor for the transmission delay of the Lora communication between the host and the slave.

[0012] As a further method, the grounding terminal of the smart grounding wire with reliable communication status between the host end and the slave Lora is evaluated to determine whether the state of the grounding terminal of the smart grounding wire is reliable. The specific analysis process is: for the smart grounding wire with reliable communication status between the host end and the slave Lora, a grounding terminal state data set of the smart grounding wire is obtained; based on the obtained grounding terminal state data set of the smart grounding wire, a grounding terminal state evaluation value of the smart grounding wire is obtained through comprehensive analysis, and the grounding terminal state evaluation value of the smart grounding wire is used as an analysis basis for determining whether the grounding terminal state of the smart grounding wire is reliable; the grounding terminal state evaluation value of the smart grounding wire is compared with a grounding terminal state reference evaluation value of the smart grounding wire stored in a database; if the grounding terminal state evaluation value of the smart grounding wire is higher than or equal to the grounding terminal state reference evaluation value of the smart grounding wire, the grounding terminal state of the smart grounding wire corresponding to the grounding terminal state evaluation value of the smart grounding wire is reliable; if the grounding terminal state evaluation value of the smart grounding wire is lower than the grounding terminal state reference evaluation value of the smart grounding wire, the grounding terminal state of the smart grounding wire corresponding to the grounding terminal state evaluation value of the smart grounding wire is unreliable.

[0013] As a further method, the intelligent grounding wire grounding terminal state data set includes the grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, and the absolute value of the difference between the voltage of the intelligent grounding wire grounding terminal and the reference voltage.

[0014] As a further method, the intelligent grounding wire grounding terminal status evaluation value, the specific analysis process is:

[0015] ;

[0016] In the formula, is the evaluation value of the grounding terminal status of the intelligent grounding wire, is the grounding resistance of the intelligent grounding wire grounding terminal, is the soil conductivity at the grounding end of the smart grounding wire, is the absolute value of the difference between the grounding voltage of the smart grounding wire and the reference voltage, is the compensation factor of the grounding resistance of the grounding terminal of the set intelligent grounding wire, is the compensation factor of the soil conductivity at the grounding end of the set intelligent grounding wire, is the compensation factor of the absolute value of the difference between the voltage at the grounding terminal of the set intelligent grounding wire and the reference voltage, and e is a natural constant.

[0017] As a further method, the working and hanging detection status of the intelligent grounding wire terminal with reliable grounding terminal status is evaluated to determine whether the intelligent grounding wire status is reliable. The specific analysis process is: for the intelligent grounding wire with reliable grounding terminal status, the working and hanging detection status data set of the intelligent grounding wire terminal is obtained, and based on the obtained working and hanging detection status data set of the intelligent grounding wire terminal, the working and hanging detection status evaluation value of the intelligent grounding wire terminal is obtained through comprehensive analysis, and the working and hanging detection status evaluation value of the intelligent grounding wire terminal is used as the analysis basis for judging whether the intelligent grounding wire status is reliable; the working and hanging detection status of the intelligent grounding wire terminal is obtained. The detection status evaluation value is compared with the reference evaluation value of the working and connection detection status of the intelligent grounding wire terminal stored in the database; if the evaluation value of the working and connection detection status of the intelligent grounding wire terminal is higher than or equal to the reference evaluation value of the working and connection detection status of the intelligent grounding wire terminal, then the intelligent grounding wire status corresponding to the evaluation value of the working and connection detection status of the intelligent grounding wire terminal is reliable; if the evaluation value of the working and connection detection status of the intelligent grounding wire terminal is lower than the reference evaluation value of the working and connection detection status of the intelligent grounding wire terminal, then the intelligent grounding wire status corresponding to the evaluation value of the working and connection detection status of the intelligent grounding wire terminal is unreliable.

[0018] As a further method, a data set of working and hanging detection status of the intelligent grounding wire terminal is obtained, and the specific analysis process is as follows: the data set of working and hanging detection status of the intelligent grounding wire terminal includes a data set of working status of the intelligent grounding wire terminal and a data set of hanging detection status of the intelligent grounding wire terminal; the data set of working status of the intelligent grounding wire terminal specifically includes the working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure; the data set of hanging detection status of the intelligent grounding wire terminal specifically includes the pressure applied by the grounding wire terminal clamp on the hanging line, and the absolute value of the difference between the hanging level signal value of the intelligent grounding wire terminal and the reference level signal value.

[0019] The second aspect of the present invention provides an intelligent grounding wire reliability detection system based on Lora communication, comprising a Lora communication status reliable judgment module, a grounding terminal status reliable judgment module and an intelligent grounding wire status reliable judgment module, wherein: the Lora communication status reliable judgment module is used to evaluate the Lora communication between the host end and the slave end of the intelligent grounding wire, and judge whether the Lora communication status between the host end and the slave end of the intelligent grounding wire is reliable; the grounding terminal status reliable judgment module is used to evaluate the grounding terminal of the intelligent grounding wire whose Lora communication status between the host end and the slave end is reliable, and judge whether the grounding terminal status of the intelligent grounding wire is reliable; the intelligent grounding wire status reliable judgment module is used to evaluate the working and hanging detection status of the intelligent grounding wire terminal whose grounding terminal status is reliable, and judge whether the state of the intelligent grounding wire is reliable.

[0020] Compared with the prior art, the present invention has the following advantages or beneficial effects:

[0021] (1) The present invention provides an intelligent grounding wire reliability detection method and system based on Lora communication, evaluates the status of Lora communication between the host and the slave, ensures the reliability of data transmission, thereby improving the stability and reliability of the entire system, reducing the safety hazards caused by communication failures, and evaluating the status of the grounding terminal and the wiring terminal. Potential faults can be discovered and located in a timely manner, ensuring that problems are identified and resolved as early as possible, maintaining the normal operation of the grounding system, continuously monitoring the status of each link, realizing data collection and analysis, and issuing early warning information in a timely manner, reducing the probability of accidents, and improving safety.

[0022] (2) The present invention evaluates the communication between the host end of the intelligent grounding wire and the slave Lora to determine whether the communication status between the host end of the intelligent grounding wire and the slave Lora is reliable. Reliable communication status ensures the integrity and accuracy of the data and avoids misjudgment due to data loss or errors. It is crucial for subsequent fault detection and maintenance decisions. Effective communication monitoring can timely discover potential safety hazards and reduce the risk of safety accidents such as leakage and short circuit caused by communication failures, thereby ensuring the safe operation of the equipment. Regular evaluation of the communication status can quickly identify and locate communication failures, shorten the troubleshooting time, and improve the operation and maintenance efficiency.

[0023] (3) The present invention evaluates the working and hooking detection status of the intelligent grounding wire terminal to determine whether the intelligent grounding wire status is reliable and monitors the working status of the terminal. It can promptly detect grounding wiring problems, such as poor contact or failure, thereby preventing safety accidents such as leakage or short circuit, improving system safety, ensuring the reliability of the grounding terminal status, and preventing equipment shutdown or failure due to wiring problems, thereby improving the normal operation time and reliability of the equipment. Reliable wiring status evaluation can ensure the accuracy and effectiveness of data collection, and provide more reliable data support for subsequent analysis and decision-making. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0025] Figure 1 The figure is a schematic flow chart of the method steps of the present invention.

[0026] Figure 2 It is a schematic diagram of system module connection of the present invention. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1 As shown, the first aspect of the present invention provides a reliability detection method for an intelligent grounding wire based on Lora communication, comprising: evaluating the Lora communication between the host end of the intelligent grounding wire and the slave end, and judging whether the Lora communication status between the host end of the intelligent grounding wire and the slave end is reliable, wherein the slave end is arranged at the grounding end and the wiring end.

[0029] Specifically, the Lora communication between the host end and the slave end of the intelligent grounding wire is evaluated to determine whether the Lora communication status between the host end and the slave end of the intelligent grounding wire is reliable. The specific analysis process is: obtain the Lora communication status data set between the host end and the slave end, and based on the obtained Lora communication status data set between the host end and the slave end, comprehensively analyze to obtain the Lora communication status evaluation value between the host end and the slave end. The Lora communication status evaluation value between the host end and the slave end is used as the analysis basis for determining whether the Lora communication status between the host end and the slave end of the intelligent grounding wire is reliable; compare the Lora communication status evaluation value between the host end and the slave end with the database The host-slave Lora communication status reference evaluation value stored in is compared with the host-slave Lora communication status reference evaluation value; if the host-slave Lora communication status evaluation value is higher than or equal to the host-slave Lora communication status reference evaluation value, the host-slave Lora communication status of the intelligent grounding wire corresponding to the host-slave Lora communication status evaluation value is reliable; if the host-slave Lora communication status evaluation value is lower than the host-slave Lora communication status reference evaluation value, the host-slave Lora communication status of the intelligent grounding wire corresponding to the host-slave Lora communication status evaluation value is unreliable.

[0030] It needs to be explained that the above-mentioned regular evaluation of communication status can timely discover potential problems, such as signal interference or data loss, so as to take necessary measures to improve the stability and reliability of communication. Evaluation of communication status can more quickly identify the source of fault, locate and handle it, reduce the impact caused by communication failure, improve the timeliness of fault response, ensure the reliability of communication between the host and the slave, improve the accuracy and completeness of data transmission, and provide a more reliable basis for subsequent data analysis and decision-making. Timely status evaluation can optimize the allocation of system resources and avoid equipment downtime or production delays caused by communication problems, thereby improving overall operational efficiency. The evaluation results provide important decision-making support for management, helping them to determine whether system upgrades, maintenance or other optimization measures are needed. Accurate communication evaluation helps to identify and control the risks caused by unreliable communications.

[0031] Furthermore, the host-slave Lora communication status data set includes the host-slave Lora communication transmission power, the effective load of the host-slave Lora communication transmission, the host-slave Lora communication network bandwidth, and the host-slave Lora communication transmission delay. Transmission power refers to the power used by the Lora device when sending data, usually expressed in decibel milliwatts. Higher transmission power can increase communication distance and signal strength, but it will also increase power consumption. It can be obtained by using the configuration tool or programming interface of the Lora module. Effective load refers to the number of data bytes that the Lora device can successfully transmit in one communication. Lora communication is The effective load is usually small because it is designed for low power consumption and long-distance transmission. The effective load amount is critical to the actual data exchange capability of the device. It is obtained through the development library and API of the Lora module. The network bandwidth refers to the amount of data that can be transmitted through the network in a given time, usually expressed in bits per second. In Lora, the bandwidth usually depends on the signal's spreading factor and data rate setting, which affects the speed and distance of communication. The network bandwidth can be obtained from the management interface or configuration tool of the Lora gateway. The transmission delay refers to the time required for a data packet to be successfully received by the slave from the host. The time when the data packet is sent and received is recorded by the host and slave timestamps, thereby calculating the transmission delay.

[0032] It needs to be explained that the above-mentioned higher transmission power can improve the coverage and quality of the signal, can reliably transmit data at a longer distance, and may reduce the transmission delay because the signal reaches the receiving end more efficiently. In Lora communication, the size of the payload is limited by the network bandwidth, which determines the amount of data that can be transmitted per unit time. If the payload is large, a higher network bandwidth may be required to transmit the data. The network bandwidth not only affects the payload, but also the transmission delay. Higher bandwidth means that more data can be transmitted per unit time, which helps to reduce transmission delay. The increase in transmission power may reduce the number of retransmissions under poor channel conditions, thereby reducing transmission delay. When the payload of the transmitted data increases, especially when there is insufficient bandwidth, it may lead to an increase in transmission delay because the device takes longer to complete the transmission of large data packets. Therefore, under normal circumstances, a better communication state requires a higher communication transmission power, a higher payload, and a higher network bandwidth, and a lower communication transmission delay.

[0033] Specifically, the evaluation value of the Lora communication status between the host and the slave, the specific analysis process is:

[0034] ;

[0035] In the formula, It is the evaluation value of the communication status between the host and the slave Lora. The transmission power of the host and slave Lora communication. The effective load transmitted between the host and the slave Lora communication. The bandwidth of the Lora communication network between the host and the slave. It is the transmission delay of the host and slave Lora communication. is the compensation factor for the transmission power of the Lora communication between the host and the slave. The compensation factor for the effective load of the communication between the host and the slave Lora is set. is the compensation factor for the bandwidth of the Lora communication network between the host and the slave. It is the compensation factor for the transmission delay of the Lora communication between the host and the slave.

[0036] It should be explained that the above evaluation value of the Lora communication status between the host and the slave is calculated through the transmission power of the Lora communication between the host and the slave, the effective load of the Lora communication between the host and the slave, the network bandwidth of the Lora communication between the host and the slave, and the transmission delay of the Lora communication between the host and the slave. The transmission power of the Lora communication between the host and the slave, the effective load of the Lora communication between the host and the slave, the network bandwidth of the Lora communication between the host and the slave, and the transmission delay of the Lora communication between the host and the slave are normalized. The monitoring of the transmission power and the load can timely discover problems such as signal attenuation or interference. Therefore, corresponding measures can be taken to ensure the continuity and stability of communication. Combined with the analysis of transmission delay and network bandwidth, it is helpful to identify potential network failures in advance and deal with problems in a timely manner. Evaluating network bandwidth and effective load can more reasonably allocate network resources, avoid network congestion, and improve overall communication efficiency. Evaluating the transmission conditions under different environmental conditions can help the system adapt to different usage scenarios, thereby ensuring stability in various environments. Monitoring transmission load and delay can predict network traffic peaks, prepare countermeasures in advance, and reduce the impact on communication quality. Based on communication status evaluation, more intelligent data analysis can be carried out. Analysis and decision-making, improve the system's adaptability and intelligence level, set the host-slave Lora communication transmission power, the effective load of the host-slave Lora communication transmission, the host-slave Lora communication network bandwidth, the host-slave Lora communication transmission delay compensation factor is obtained from the database, according to the historical data to establish the historical measurement of the host-slave Lora communication transmission power, the effective load of the host-slave Lora communication transmission, the host-slave Lora communication network bandwidth, the host-slave Lora communication transmission delay and the host-slave Lora communication transmission power, the host A mapping set of the effective load amount of the Lora communication transmission with the slave, the network bandwidth of the Lora communication between the host and the slave, and the compensation factor of the transmission delay of the Lora communication between the host and the slave is obtained, and the host and slave Lora communication transmission power, the effective load amount of the Lora communication transmission with the host and the slave, the Lora communication network bandwidth of the host and the slave, and the compensation factor of the transmission delay of the Lora communication between the host and the slave corresponding to the current Lora communication transmission power between the host and the slave, the Lora communication network bandwidth of the host and the slave, and the transmission delay of the Lora communication between the host and the slave are obtained.

[0037] It needs to be explained that the above evaluation of the communication between the host end of the smart grounding wire and the slave Lora is used to determine whether the communication status between the host end of the smart grounding wire and the slave Lora is reliable. Reliable communication status ensures the integrity and accuracy of the data and avoids misjudgment due to data loss or errors. It is crucial for subsequent fault detection and maintenance decisions. Effective communication monitoring can timely discover potential safety hazards, reduce the risk of safety accidents such as leakage and short circuit caused by communication failures, ensure the safe operation of the equipment, and regularly evaluate the communication status to quickly identify and locate communication failures, shorten troubleshooting time, and improve operation and maintenance efficiency.

[0038] The grounding terminal of the intelligent grounding wire whose communication status between the host and the slave Lora is reliable is evaluated to determine whether the grounding terminal status of the intelligent grounding wire is reliable.

[0039] Specifically, the grounding terminal of the smart grounding wire whose communication status between the host end and the slave Lora is reliable is evaluated to determine whether the status of the grounding terminal of the smart grounding wire is reliable. The specific analysis process is: for the smart grounding wire whose communication status between the host end and the slave Lora is reliable, a grounding terminal status data set of the smart grounding wire is obtained, and based on the obtained grounding terminal status data set of the smart grounding wire, a grounding terminal status evaluation value of the smart grounding wire is obtained through comprehensive analysis, and the grounding terminal status evaluation value of the smart grounding wire is used as an analysis basis for determining whether the grounding terminal status of the smart grounding wire is reliable; the grounding terminal status evaluation value of the smart grounding wire is compared with a grounding terminal status reference evaluation value of the smart grounding wire stored in a database; if the grounding terminal status evaluation value of the smart grounding wire is higher than or equal to the grounding terminal status reference evaluation value of the smart grounding wire, then the grounding terminal status of the smart grounding wire corresponding to the grounding terminal status evaluation value of the smart grounding wire is reliable; if the grounding terminal status evaluation value of the smart grounding wire is lower than the grounding terminal status reference evaluation value of the smart grounding wire, then the grounding terminal status of the smart grounding wire corresponding to the grounding terminal status evaluation value of the smart grounding wire is unreliable.

[0040] In a specific embodiment, reliable grounding is an important guarantee for the safe operation of electrical equipment. The evaluation of the status of the grounding terminal of the intelligent grounding wire can timely detect potential grounding faults. Monitoring and regular evaluation of the grounding terminal status can detect problems early, thereby performing preventive maintenance, reducing the risk of sudden failures, extending the service life of equipment, and reducing maintenance costs. Status evaluation can provide an effective fault detection mechanism. Once the evaluation value is lower than the reference value, an alarm can be triggered to promptly notify relevant personnel to take measures to avoid accidents. Comprehensive analysis based on the acquired status data set can provide data support for subsequent decision-making, help managers to more deeply understand the equipment operation status, and optimize maintenance strategies. Reliable grounding can ensure the stable operation of the electrical system and improve the performance and response speed of the entire system. Regular evaluation of the grounding status can continuously monitor the health of the system.

[0041] Furthermore, the grounding terminal status data set of the intelligent grounding wire specifically includes the grounding resistance of the grounding terminal of the intelligent grounding wire, the soil conductivity of the grounding terminal of the intelligent grounding wire, and the absolute value of the difference between the voltage and the reference voltage of the grounding terminal of the intelligent grounding wire. The grounding resistance refers to the resistance between the grounding system and the ground, which reflects the effectiveness of the grounding system. The lower the grounding resistance, the better the grounding effect, and the more effectively the fault current can be introduced into the ground, thereby improving the safety of the system. It is obtained using a grounding resistance tester. Soil conductivity is an indicator of soil conductivity, which is usually measured by a conductivity meter (or soil conductivity detector). Its value is affected by factors such as soil moisture content, salinity, and soil type. When the soil conductivity is high, it indicates that the soil has strong conductivity and the grounding effect is usually better. It is obtained based on the soil conductivity tester. The absolute value of the difference between the voltage and the reference voltage usually indicates the deviation of the grounding terminal voltage from a known standard (reference voltage), which may indicate that there are potential problems with the grounding terminal, especially under fault or abnormal conditions. It is obtained based on a voltage measuring instrument.

[0042] In a specific embodiment, high soil conductivity usually means that the soil has high salt and moisture content, which helps to improve its conductivity and thus reduce the grounding resistance. When the grounding resistance value is large, when a system fault occurs (such as a short circuit), the grounding voltage increases relative to the ground potential, which may cause the actual voltage at the grounding end to be much higher than the reference voltage, resulting in an increase in the voltage difference, which may pose a threat to equipment and personnel. High soil conductivity can help the fault current flow into the ground more easily, so that in the event of a fault, the voltage at the grounding end changes less, and thus the absolute value of the difference between the voltage and the reference voltage is also smaller.

[0043] Specifically, the intelligent grounding wire grounding terminal status evaluation value, the specific analysis process is as follows:

[0044] ;

[0045] In the formula, is the evaluation value of the grounding terminal status of the intelligent grounding wire, is the grounding resistance of the intelligent grounding wire grounding terminal, is the soil conductivity at the grounding end of the smart grounding wire, is the absolute value of the difference between the grounding voltage of the smart grounding wire and the reference voltage, is the compensation factor of the grounding resistance of the grounding terminal of the set intelligent grounding wire, is the compensation factor of the soil conductivity at the grounding end of the set intelligent grounding wire, is the compensation factor of the absolute value of the difference between the voltage at the grounding terminal of the set intelligent grounding wire and the reference voltage, and e is a natural constant.

[0046] It should be explained that the above-mentioned intelligent grounding wire grounding terminal status evaluation value is calculated through the grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, and the absolute value of the difference between the voltage of the intelligent grounding wire grounding terminal and the reference voltage. The grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, and the absolute value of the difference between the voltage of the intelligent grounding wire grounding terminal and the reference voltage are normalized. Monitoring the grounding resistance and voltage difference can timely detect abnormal conditions of the grounding system, such as grounding faults or excessive grounding resistance, thereby preventing accidents and ensuring the safety of equipment and personnel. Accurate evaluation can effectively reduce the risk of electric shock to people when equipment fails and improve the overall safety of the system. Analysis of different evaluation indicators can locate grounding faults more quickly, reduce maintenance time, and improve maintenance efficiency. Through regular evaluation, operation and maintenance personnel can formulate corresponding maintenance plans based on the data analysis results and replace or repair aging grounding modules in time. Monitoring of grounding resistance and soil conductivity can evaluate the stability of the grounding system under different environmental conditions. The status assessment of the intelligent grounding wire can realize automatic monitoring, reduce the burden of manual inspection, and improve management efficiency. The compensation factors of the set grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, and the absolute value of the difference between the voltage and the reference voltage of the intelligent grounding wire grounding terminal are obtained from the database. According to the historical data, a mapping set of the historically measured grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, the absolute value of the difference between the voltage and the reference voltage of the intelligent grounding wire grounding terminal and the compensation factors of the grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, and the absolute value of the difference between the voltage and the reference voltage of the intelligent grounding wire grounding terminal is established to obtain the compensation factors of the grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, and the absolute value of the difference between the voltage and the reference voltage of the intelligent grounding wire grounding terminal corresponding to the current grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, and the absolute value of the difference between the voltage and the reference voltage of the intelligent grounding wire grounding terminal.

[0047] The working and hook-up detection status of the intelligent grounding wire terminal with reliable grounding terminal status is evaluated to determine whether the intelligent grounding wire status is reliable.

[0048] Specifically, the working and hooking detection status of the intelligent grounding wire terminal with reliable grounding terminal status is evaluated to determine whether the intelligent grounding wire status is reliable. The specific analysis process is: for the intelligent grounding wire with reliable grounding terminal status, the working and hooking detection status data set of the intelligent grounding wire terminal is obtained; based on the obtained working and hooking detection status data set of the intelligent grounding wire terminal, a comprehensive analysis is performed to obtain an evaluation value of the working and hooking detection status of the intelligent grounding wire terminal; the evaluation value of the working and hooking detection status of the intelligent grounding wire terminal is used as an analysis basis for determining whether the intelligent grounding wire status is reliable; the working and hooking detection status of the intelligent grounding wire terminal is obtained; The status evaluation value is compared with the reference evaluation value of the working and hanging detection status of the intelligent grounding wire terminal stored in the database; if the evaluation value of the working and hanging detection status of the intelligent grounding wire terminal is higher than or equal to the reference evaluation value of the working and hanging detection status of the intelligent grounding wire terminal, then the intelligent grounding wire status corresponding to the evaluation value of the working and hanging detection status of the intelligent grounding wire terminal is reliable; if the evaluation value of the working and hanging detection status of the intelligent grounding wire terminal is lower than the reference evaluation value of the working and hanging detection status of the intelligent grounding wire terminal, then the intelligent grounding wire status corresponding to the evaluation value of the working and hanging detection status of the intelligent grounding wire terminal is unreliable.

[0049] It should be explained that ensuring the reliability of the grounding system is an important part of electrical safety. Evaluating the status of the intelligent grounding wire can detect potential faults in time and prevent equipment damage or personal injury. Regular status evaluation can help detect abnormalities in the working condition of the grounding wire in time and reduce the risk of equipment failure during operation, thereby avoiding downtime or accidents caused by faults. The detection and analysis of the grounding wire status can ensure the stability of the grounding system under different working conditions and improve the overall reliability of the electrical system. By continuously monitoring and evaluating the grounding wire status, preventive measures can be taken before a fault occurs, thereby reducing downtime and maintenance costs. Timely maintenance can effectively extend the service life of the equipment. The cross-period analysis of the grounding wire terminal working and hook-up detection status data set can discover long-term trends and potential problems, providing a basis for future maintenance and improvement decisions.

[0050] Furthermore, the working and hanging detection status data set of the intelligent grounding wire terminal is obtained. The specific analysis process is as follows: the working and hanging detection status data set of the intelligent grounding wire terminal includes the working status data set of the intelligent grounding wire terminal and the hanging detection status data set of the intelligent grounding wire terminal; the working status data set of the intelligent grounding wire terminal specifically includes the working jitter frequency of the intelligent grounding wire terminal, the average working failure interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure. The working jitter frequency refers to the frequency of jitter or fluctuation of the terminal during operation. This jitter may be caused by electrical interference, mechanical vibration or other factors. The frequency is usually expressed in Hertz. The jitter frequency of the terminal is measured by a vibration sensor or accelerometer. The average working failure interval time refers to the average time between the normal operation and failure of the equipment within a period of time. It is an important indicator for measuring the reliability of the equipment. It is obtained through a monitoring system or a fault recording system. The working environment air pressure is different from the reference air pressure. The absolute value of the air pressure difference refers to the absolute value of the difference between the air pressure in the working environment of the terminal and a certain reference air pressure. Changes in air pressure may affect the working performance of the equipment. A pressure sensor or a barometer is used to measure the air pressure in the working environment. The intelligent grounding wire terminal hanging detection status data set specifically includes the pressure applied by the grounding wire terminal clamp on the hanging line, the absolute value of the difference between the intelligent grounding wire terminal hanging level signal value and the reference level signal value. The pressure applied by the grounding wire terminal clamp on the hanging line can indicate the tightness between the intelligent grounding wire terminal clamp and the hanging line. Appropriate tightness can ensure the stability of the electrical connection and reduce the risk of contact failure. It is obtained based on the pressure sensor. The level signal value usually refers to the actual working electrical signal voltage or current value. The reference level signal value is the electrical signal value expected by the system design or standard. The absolute value of the difference between the two reflects the deviation between the working state of the equipment and the normal state, which can indicate whether there is a fault or abnormality. It is obtained based on the level signal sensor.

[0051] It needs to be explained that the above-mentioned working jitter frequency may affect the reliability and failure rate of the equipment. If the jitter frequency is high, it may cause mechanical fatigue, poor electrical connection and other problems, thereby increasing the frequency of failures and reducing the average working failure interval time. The increase in jitter frequency is usually negatively correlated with the decrease in the average working failure interval time. Changes in air pressure may affect the normal operation of the equipment, especially in specific working environments. Lower air pressure may cause insulation performance to deteriorate and increase the possibility of electrical failures, thereby affecting the average working failure interval time. The larger the absolute value of the air pressure difference, the more significant the impact on the performance of the equipment may be, resulting in a decrease in the average working failure interval time. Changes in air pressure in the working environment may affect the structural stability and vibration characteristics of the equipment. In a low-pressure environment, the strength of the material may be reduced, causing the equipment to be more prone to jitter or vibration during operation. The jitter of the equipment may also affect the readings of the air pressure sensor and cause errors.

[0052] It needs to be explained that insufficient connection tightness may lead to poor contact, thereby increasing contact resistance, which will affect the flow of current, causing the level signal value to drop or become unstable, and further increase the difference between the actual level signal and the reference value. If the connection is loose, the electrical signal may attenuate during transmission, causing the measured level signal to be lower than the expected reference level signal. If the absolute value of the difference between the level signal and the reference level signal is large, it may indicate that there is a fault or abnormality in the system. At this time, it may be necessary to check the connection tightness between the smart grounding wire terminal clamp and the hanging line to eliminate the problem of poor contact. Ensuring good connection tightness can not only reduce the difference in level signals and improve system stability, but also reduce the probability of failure.

[0053] It should be explained that the specific analysis process of the working status evaluation value of the above-mentioned intelligent grounding wire terminal is as follows:

[0054] ;

[0055] In the formula, is the working status evaluation value of the intelligent grounding wire terminal, It is the working jitter frequency of the intelligent grounding wire terminal. is the average working fault interval time of the intelligent grounding wire terminal, is the absolute value of the difference between the working environment pressure of the intelligent grounding wire terminal and the reference pressure. is the compensation factor of the working jitter frequency of the set intelligent grounding wire terminal, is the compensation factor of the average working fault interval of the intelligent grounding terminal. is the compensation factor of the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure, and e is a natural constant.

[0056] It needs to be explained that the above-mentioned working status evaluation value of the intelligent grounding wire terminal is calculated by the working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure. The working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure are normalized. Combining multiple indicators can comprehensively reflect the working status of the terminal and avoid the misjudgment that may be caused by a single indicator. Monitoring the working fault interval time and jitter frequency can predict possible equipment failures, thereby taking preventive measures to reduce downtime. Analyzing the air pressure difference can determine the impact of environmental changes on the terminal, adjust the working conditions in time, and reduce the probability of failure. Analysis of environmental factors can provide data support for the design and improvement of the grounding wire, so that it performs better in specific environments. Monitoring the working status can timely detect abnormalities in the grounding system and prevent the risk of electric shock or equipment damage caused by grounding faults. Monitoring the working status of the terminal can reduce safety accidents caused by equipment failures and improve The security of the overall system can be realized through data analysis, and intelligent maintenance strategies can be implemented to reduce the frequency of manual inspections and improve maintenance efficiency. The set compensation factors for the working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure are obtained from the database. According to the historical data, a mapping set of the historically measured working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure and the compensation factors for the working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure is established to obtain the compensation factors for the working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure corresponding to the current working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure.

[0057] It should be explained that the specific analysis process of the above-mentioned intelligent grounding wire terminal connection detection status evaluation value is as follows:

[0058] ;

[0059] In the formula, It is the evaluation value of the intelligent grounding wire terminal connection detection status. The pressure exerted by the ground wire terminal clamp on the hanging wire circuit, It is the absolute value of the difference between the intelligent grounding wire terminal connection level signal value and the reference level signal value. The compensation factor for the pressure exerted by the grounding wire terminal clamp on the hanging wire is set. It is the compensation factor of the absolute value of the difference between the set intelligent grounding wire terminal connection level signal value and the reference level signal value.

[0060] It needs to be explained that the above-mentioned intelligent grounding wire terminal hanging detection status evaluation value is calculated by the pressure applied by the grounding wire terminal clamp on the hanging line, and the absolute value of the difference between the intelligent grounding wire terminal hanging level signal value and the reference level signal value. The pressure applied by the grounding wire terminal clamp on the hanging line, and the absolute value of the difference between the intelligent grounding wire terminal hanging level signal value and the reference level signal value are normalized. Combined with the tightness and level signal, the status of the terminal can be more comprehensively evaluated to reduce the risk of misjudgment caused by a single parameter abnormality. Through precise data comparison, changes in the terminal can be observed more carefully and potential problems can be discovered early. Using the difference calculation of the level signal, problems such as poor contact or looseness of the terminal can be discovered in time, reducing the probability of failure. Based on the calculated evaluation value, more scientific decisions can be made to optimize equipment operation, maintenance strategies and resource allocation. Timely monitoring of terminal status changes can effectively reduce safety hazards caused by grounding faults and ensure the safety of equipment and personnel. Monitoring of evaluation values ​​and equipment maintenance can be more The invention can be more targeted, avoid unnecessary manual detection, save maintenance costs, and improve the overall stability and reliability of the grounding system to ensure its normal operation under various working environments. The set compensation factors of the pressure applied by the grounding wire terminal clamp on the hanging line and the absolute value of the difference between the hanging level signal value of the intelligent grounding wire terminal and the reference level signal value are obtained from the database. According to the historical data, a mapping set of the compensation factors of the pressure applied by the grounding wire terminal clamp on the hanging line and the absolute value of the difference between the hanging level signal value of the intelligent grounding wire terminal and the reference level signal value and the pressure applied by the grounding wire terminal clamp on the hanging line and the absolute value of the difference between the hanging level signal value of the intelligent grounding wire terminal and the reference level signal value are established to obtain the compensation factors of the pressure applied by the grounding wire terminal clamp on the hanging line and the absolute value of the difference between the hanging level signal value of the intelligent grounding wire terminal and the reference level signal value corresponding to the current pressure applied by the grounding wire terminal clamp on the hanging line and the absolute value of the difference between the hanging level signal value of the intelligent grounding wire terminal and the reference level signal value.

[0061] It should be explained that the specific analysis process of the above intelligent grounding terminal status evaluation value is as follows:

[0062] ;

[0063] In the formula, is the intelligent grounding wire terminal status evaluation value, is the working status evaluation value of the intelligent grounding wire terminal, It is the evaluation value of the intelligent grounding wire terminal connection detection status.

[0064] It needs to be explained that the above-mentioned comprehensive analysis of the working status evaluation value of the intelligent grounding wire terminal and the connection detection status evaluation value of the intelligent grounding wire terminal obtains the status evaluation value of the intelligent grounding wire terminal. Combined with the evaluation of the working status and the connection detection status, the status of the terminal can be more comprehensively understood, potential fault risks can be discovered in time, and the safety of the grounding system can be ensured. The comprehensive analysis can help to diagnose and deal with problems with the terminal in a timely manner, effectively prevent electrical accidents caused by poor grounding, and protect equipment and personal safety. The comprehensive status evaluation value can provide accurate monitoring data, which helps to ensure that the grounding system can operate normally under various working conditions. The analysis of the comprehensive evaluation value can make maintenance plans more scientifically, realize data-driven maintenance management, and improve the efficiency and effectiveness of maintenance work. It can also help managers allocate resources reasonably, ensure that they focus on areas with poor terminal conditions, and improve the pertinence of the overall maintenance work. The combination of the evaluation of the working status and the connection detection status can provide a richer data basis for the application of intelligent algorithms, and help realize intelligent equipment management.

[0065] It needs to be explained that the above-mentioned intelligent grounding wire terminal working and hanging detection status are evaluated to determine whether the intelligent grounding wire status is reliable and monitor the working status of the terminal, so as to timely discover the grounding wiring problems, such as poor contact or failure, thereby preventing safety accidents such as leakage or short circuit, improving system safety, ensuring the reliability of the grounding terminal status, and preventing equipment shutdown or failure caused by wiring problems, improving the normal operation time and reliability of the equipment. Reliable wiring status evaluation can ensure the accuracy and effectiveness of data collection, and provide more reliable data support for subsequent analysis and decision-making.

[0066] Reference Figure 2 As shown, the second aspect of the present invention provides an intelligent grounding wire reliability detection system based on Lora communication, including a Lora communication state reliability judgment module, a grounding terminal state reliability judgment module and an intelligent grounding wire state reliability judgment module.

[0067] The Lora communication status reliability judgment module is used to evaluate the Lora communication between the host end of the intelligent grounding wire and the slave end, and judge whether the Lora communication status between the host end of the intelligent grounding wire and the slave end is reliable.

[0068] The grounding terminal state reliability judgment module is used to evaluate the grounding terminal of the intelligent grounding wire whose communication state with the host end and the slave Lora is reliable, and judge whether the grounding terminal state of the intelligent grounding wire is reliable.

[0069] The intelligent grounding wire state reliability judgment module is used to evaluate the working and hooking detection state of the intelligent grounding wire terminal of the grounding terminal to determine whether the intelligent grounding wire state is reliable.

[0070] It should be explained that the above-mentioned intelligent grounding wire reliability detection method and system based on Lora communication is provided to evaluate the status of Lora communication between the host and the slave, ensure the reliability of data transmission, thereby improving the stability and reliability of the entire system, reducing the safety hazards caused by communication failures, and evaluating the status of the grounding terminal and the wiring terminal. Potential faults can be discovered and located in time, ensuring that problems are identified and resolved as soon as possible, maintaining the normal operation of the grounding system, and continuously monitoring the status of each link. It can realize data collection and analysis, issue early warning information in time, reduce the probability of accidents, and improve safety. In this application, the slave refers to the grounding terminal and the wiring terminal of the intelligent grounding wire.

Claims

1. An intelligent grounding wire reliability detection method based on Lora communication is characterized in that: The following steps are involved: Evaluate the communication between the intelligent grounding wire host end and the slave Lora to determine whether the communication status between the intelligent grounding wire host end and the slave Lora is reliable, wherein the slave is provided at the grounding terminal and the wiring terminal; The communication between the intelligent grounding host and the slave Lora is evaluated to determine whether the communication status between the intelligent grounding host and the slave Lora is reliable. The specific analysis process is as follows: Obtain a data set of Lora communication status between the host and the slave. Based on the acquired data set of Lora communication status between the host and the slave, a comprehensive analysis is performed to obtain an evaluation value of the Lora communication status between the host and the slave. The evaluation value of the Lora communication status between the host and the slave is used as an analysis basis for judging whether the Lora communication status between the host and the slave of the intelligent grounding wire is reliable. Compare the evaluation value of the Lora communication state between the host and the slave with the reference evaluation value of the Lora communication state between the host and the slave stored in the database; If the evaluation value of the Lora communication state between the host end and the slave end is higher than or equal to the reference evaluation value of the Lora communication state between the host end and the slave end, the Lora communication state between the host end and the slave end of the intelligent grounding wire corresponding to the evaluation value of the Lora communication state between the host end and the slave end is reliable; If the evaluation value of the Lora communication state between the host end and the slave end is lower than the reference evaluation value of the Lora communication state between the host end and the slave end, the Lora communication state between the host end and the slave end of the intelligent grounding wire corresponding to the evaluation value of the Lora communication state between the host end and the slave end is unreliable; The host-slave Lora communication status data set includes the host-slave Lora communication transmission power, the host-slave Lora communication transmission effective load, the host-slave Lora communication network bandwidth, and the host-slave Lora communication transmission delay; The host and slave Lora communication status evaluation value, the specific analysis process is: Wherein, δ is the evaluation value of the Lora communication state between the host and the slave, gl is the Lora communication transmission power between the host and the slave, fz is the effective load of the Lora communication between the host and the slave, dk is the Lora communication network bandwidth between the host and the slave, sy is the transmission delay of the Lora communication between the host and the slave, σ1 is the compensation factor of the set Lora communication transmission power between the host and the slave, σ2 is the compensation factor of the set effective load of the Lora communication between the host and the slave, σ3 is the compensation factor of the Lora communication network bandwidth between the host and the slave, σ4 is the compensation factor of the Lora communication transmission delay between the host and the slave; Evaluate the grounding terminal of the intelligent grounding wire whose communication status between the host and the slave Lora is reliable to determine whether the grounding terminal of the intelligent grounding wire is reliable; The working and hook-up detection status of the intelligent grounding wire terminal with reliable grounding terminal status is evaluated to determine whether the intelligent grounding wire status is reliable.

2. The Lora communication-based intelligent grounding wire reliability detection method according to claim 1 is characterized in that: The intelligent grounding wire grounding terminal whose communication status between the host and the slave Lora is reliable is evaluated to determine whether the status of the intelligent grounding wire grounding terminal is reliable. The specific analysis process is as follows: For the intelligent grounding wire with reliable communication status between the host and the slave Lora, a data set of grounding terminal status of the intelligent grounding wire is obtained. Based on the obtained data set of grounding terminal status of the intelligent grounding wire, a grounding terminal status evaluation value of the intelligent grounding wire is obtained through comprehensive analysis. The grounding terminal status evaluation value of the intelligent grounding wire is used as an analysis basis for judging whether the grounding terminal status of the intelligent grounding wire is reliable. The intelligent grounding wire grounding terminal state data set includes the grounding resistance of the intelligent grounding wire grounding terminal, the soil conductivity of the intelligent grounding wire grounding terminal, and the absolute value of the difference between the voltage of the intelligent grounding wire grounding terminal and the reference voltage; The evaluation value of the grounding terminal status of the intelligent grounding wire, the specific analysis process is as follows: Wherein, γ is the state assessment value of the grounding terminal of the intelligent grounding wire, dz is the grounding resistance of the grounding terminal of the intelligent grounding wire, dd is the soil conductivity of the grounding terminal of the intelligent grounding wire, dy is the absolute value of the difference between the grounding terminal voltage of the intelligent grounding wire and the reference voltage, τ1 is the compensation factor of the grounding resistance of the grounding terminal of the intelligent grounding wire, τ2 is the compensation factor of the soil conductivity of the grounding terminal of the intelligent grounding wire, τ3 is the compensation factor of the absolute value of the difference between the grounding terminal voltage of the intelligent grounding wire and the reference voltage, and e is a natural constant; Compare the intelligent grounding wire grounding terminal state evaluation value with the intelligent grounding wire grounding terminal state reference evaluation value stored in the database; If the intelligent grounding wire grounding terminal state evaluation value is higher than or equal to the intelligent grounding wire grounding terminal state reference evaluation value, the intelligent grounding wire grounding terminal state corresponding to the intelligent grounding wire grounding terminal state evaluation value is reliable; If the intelligent grounding wire grounding terminal state evaluation value is lower than the intelligent grounding wire grounding terminal state reference evaluation value, the intelligent grounding wire grounding terminal state corresponding to the intelligent grounding wire grounding terminal state evaluation value is unreliable.

3. The intelligent grounding wire reliability detection method based on Lora communication according to claim 1 is characterized in that: The working and hooking detection status of the intelligent grounding wire terminal whose grounding terminal status is reliable is evaluated to determine whether the intelligent grounding wire status is reliable. The specific analysis process is as follows: For the intelligent grounding wire with reliable grounding terminal status, obtain the working and hanging detection status data set of the intelligent grounding wire terminal, and obtain the intelligent grounding wire terminal status evaluation value through comprehensive analysis based on the obtained working and hanging detection status data set of the intelligent grounding wire terminal. The intelligent grounding wire terminal status evaluation value is used as the analysis basis for judging whether the intelligent grounding wire status is reliable. Obtain the working and connection detection status data set of the intelligent grounding wire terminal. The specific analysis process is as follows: The intelligent grounding wire terminal working and hooking detection state data set includes an intelligent grounding wire terminal working state data set and an intelligent grounding wire terminal hooking detection state data set; The working state data set of the intelligent grounding wire terminal specifically includes the working jitter frequency of the intelligent grounding wire terminal, the average working fault interval time of the intelligent grounding wire terminal, and the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure; The intelligent grounding wire terminal hooking detection state data set specifically includes the pressure applied by the grounding wire terminal clamp on the hooking line, and the absolute value of the difference between the intelligent grounding wire terminal hooking level signal value and the reference level signal value; The working status evaluation value of the intelligent grounding wire terminal is as follows: Wherein, α is the working state evaluation value of the intelligent grounding wire terminal, dp is the working jitter frequency of the intelligent grounding wire terminal, gz is the average working fault interval time of the intelligent grounding wire terminal, qy is the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure, μ1 is the compensation factor of the set working jitter frequency of the intelligent grounding wire terminal, μ2 is the compensation factor of the set average working fault interval time of the intelligent grounding wire terminal, μ3 is the compensation factor of the absolute value of the difference between the working environment air pressure of the intelligent grounding wire terminal and the reference air pressure, and e is a natural constant; Intelligent grounding wire terminal connection detection status evaluation value, the specific analysis process is as follows: Wherein, β is the evaluation value of the intelligent grounding wire terminal hanging detection state, jg ​​is the pressure applied by the grounding wire terminal clamp on the hanging line, dx is the absolute value of the difference between the hanging level signal value and the reference level signal value of the intelligent grounding wire terminal, μ4 is the compensation factor of the pressure applied by the grounding wire terminal clamp on the hanging line, and μ5 is the compensation factor of the absolute value of the difference between the hanging level signal value and the reference level signal value of the intelligent grounding wire terminal; Intelligent grounding wire terminal status evaluation value, the specific analysis process is as follows: ω=a β +a*b; In the formula, ω is the state evaluation value of the intelligent grounding wire terminal, α is the working state evaluation value of the intelligent grounding wire terminal, and β is the connection detection state evaluation value of the intelligent grounding wire terminal; Compare the intelligent grounding wire terminal state evaluation value with the intelligent grounding wire terminal working and hooking detection state reference evaluation value stored in the database; If the intelligent grounding wire terminal state evaluation value is higher than or equal to the intelligent grounding wire terminal working and hooking detection state reference evaluation value, the intelligent grounding wire state corresponding to the intelligent grounding wire terminal state evaluation value is reliable; If the smart grounding wire terminal status evaluation value is lower than the smart grounding wire terminal working and hanging detection status reference evaluation value, the smart grounding wire status corresponding to the smart grounding wire terminal status evaluation value is unreliable.

4. Intelligent grounding wire reliability detection system based on Lora communication, characterized in that: The Lora communication-based intelligent grounding wire reliability detection method used in any one of claims 1 to 3 comprises a Lora communication state reliability judgment module, a grounding terminal state reliability judgment module and an intelligent grounding wire state reliability judgment module, wherein: The Lora communication state reliability judgment module is used to evaluate the Lora communication between the host end of the intelligent grounding wire and the slave, and judge whether the Lora communication state between the host end of the intelligent grounding wire and the slave is reliable; The grounding terminal state reliability judgment module is used to evaluate the grounding terminal of the intelligent grounding wire whose communication state with the host end and the slave Lora is reliable, and judge whether the grounding terminal state of the intelligent grounding wire is reliable; The intelligent grounding wire state reliability judgment module is used to evaluate the working and hooking detection state of the intelligent grounding wire terminal whose grounding terminal state is reliable, and judge whether the intelligent grounding wire state is reliable.

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