Ground wire hitching state monitoring method and device, computer equipment and readable storage medium

Abstract

The invention relates to a grounding wire hanging state monitoring method and device, computer equipment and a readable storage medium. Characteristic value extraction is performed on each voltage value and each current value acquired by a sensor in a grounding wire in a preset period, a voltage comparison result and a current comparison result are determined based on a preset voltage threshold value and a preset current threshold value, and a preset state mapping table is inquired based on the voltage comparison result and the current comparison result. And determining a target grounding wire state corresponding to the grounding wire. Compared with a traditional mode that ground wires of different voltage levels are detected by adopting different insulating rods, the scheme has the advantages that the characteristic values of the voltage values and the current values in the period are extracted, and the voltage comparison result and the current comparison result are determined based on comparison of the extracted characteristic values and the corresponding threshold values; the state of the grounding wire is judged by comprehensively considering the states of the voltage comparison result and the current comparison result, and the monitoring efficiency of grounding wire state monitoring is improved.

Description

Technical Field

[0001] The present application relates to the field of power grid safety technology, and in particular to a method, device, computer equipment, computer-readable storage medium and computer program product for monitoring the connection status of a ground wire. Background Art

[0002] With the development of technology in the power field, each power equipment in the power grid is currently equipped with a hanging grounding wire to protect the safety of power equipment and power workers. In order to ensure the normal state of the grounding wire, it is necessary to monitor the state of the grounding wire in a timely manner to prevent accidents caused by abnormal state of the grounding wire to power equipment and workers. The current method for detecting the state of the grounding wire is usually to use different insulating rods for detection at different voltage levels. However, the method of using different insulating rods to monitor the state of the grounding wire will lead to a decrease in monitoring efficiency.

[0003] Therefore, the current method for monitoring the hanging status of the ground wire has the defect of low monitoring efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a ground wire hanging status monitoring method, device, computer equipment, computer readable storage medium and computer program product that can improve monitoring efficiency in response to the above technical problems.

[0005] In a first aspect, the present application provides a method for monitoring a ground wire connection state, the method comprising:

[0006] When it is detected that the state monitoring condition is met, each voltage value and each current value collected by the sensor in the ground wire to be monitored within a preset period are obtained;

[0007] Performing a first characteristic value extraction on each of the voltage values ​​to obtain a voltage characteristic value, and performing a second characteristic value extraction on each of the current values ​​to obtain a current characteristic value;

[0008] Obtaining a voltage comparison result between the voltage characteristic value and a preset voltage threshold, and obtaining a current comparison result between the current characteristic value and a preset current threshold;

[0009] According to a preset state mapping table, a target grounding wire state corresponding to the voltage comparison result and the current comparison result is determined; the preset state mapping table includes each grounding wire state corresponding to each voltage comparison result and the current comparison result.

[0010] In one embodiment, the step of obtaining each voltage value and each current value collected by a sensor in the ground wire to be monitored within a preset period includes:

[0011] Obtaining a maximum voltage and a maximum current within the preset period;

[0012] For each time point within the preset period, determining a voltage value corresponding to the time point according to the time point, the preset angular frequency, the preset voltage phase angle and the maximum voltage;

[0013] The current value corresponding to the time point is determined according to the time point, the preset angular frequency, the preset current phase angle and the current maximum value.

[0014] In one embodiment, the step of extracting a first characteristic value from each of the voltage values ​​to obtain a voltage characteristic value, and extracting a second characteristic value from each of the current values ​​to obtain a current characteristic value includes:

[0015] Obtaining the first time mean square root corresponding to each of the voltage values ​​within the preset period to obtain the voltage characteristic value;

[0016] The second time mean square root corresponding to each of the current values ​​within the preset period is obtained to obtain the current characteristic value.

[0017] In one embodiment, determining the target grounding line state corresponding to the voltage comparison result and the current comparison result according to a preset state mapping table includes:

[0018] If the voltage comparison result is that the voltage characteristic value is greater than or equal to the preset voltage threshold, and the current comparison result is that the current characteristic value is greater than or equal to the preset current threshold, then based on the preset state mapping table, it is determined that the target grounding wire state of the grounding wire is a hanging state.

[0019] In one of the embodiments, determining the target grounding line state corresponding to the voltage comparison result and the current comparison result according to a preset state mapping table further includes:

[0020] If the voltage comparison result is that the voltage characteristic value is less than the preset voltage threshold, and the current comparison result is that the current characteristic value is greater than or equal to the preset current threshold, the target grounding wire state of the grounding wire is determined to be a detached state based on the preset state mapping table.

[0021] In one of the embodiments, determining the target grounding line state corresponding to the voltage comparison result and the current comparison result according to a preset state mapping table further includes:

[0022] If the voltage comparison result is that the voltage characteristic value is less than the preset voltage threshold, and the current comparison result is that the current characteristic value is less than the preset current threshold, the target grounding wire state of the grounding wire is determined to be a removed state based on the preset state mapping table.

[0023] In one of the embodiments, after determining the target ground line state corresponding to the voltage comparison result and the current comparison result, the method further includes:

[0024] If the target grounding wire is in a detached state or a removed state, determining that the grounding wire is in an abnormal state;

[0025] Output corresponding alarm information according to the abnormal state.

[0026] In a second aspect, the present application provides a ground wire hanging state monitoring device, the device comprising:

[0027] A detection module, used to obtain each voltage value and each current value collected by a sensor in the ground wire to be monitored within a preset period when it is detected that the state monitoring condition is met;

[0028] An extraction module, used for performing a first characteristic value extraction on each of the voltage values ​​to obtain a voltage characteristic value, and performing a second characteristic value extraction on each of the current values ​​to obtain a current characteristic value;

[0029] A comparison module, used to obtain a voltage comparison result between the voltage characteristic value and a preset voltage threshold, and to obtain a current comparison result between the current characteristic value and a preset current threshold;

[0030] The monitoring module is used to determine the target grounding wire state corresponding to the voltage comparison result and the current comparison result according to a preset state mapping table; the preset state mapping table includes each grounding wire state corresponding to each voltage comparison result and the current comparison result.

[0031] In a third aspect, the present application provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0032] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of the above method when executed by a processor.

[0033] In a fifth aspect, the present application provides a computer program product, including a computer program, which implements the steps of the above method when executed by a processor.

[0034] The above-mentioned grounding wire hanging state monitoring method, device, computer equipment, computer-readable storage medium and computer program product extract characteristic values ​​of each voltage value and each current value collected by the sensor in the grounding wire within a preset period, determine the voltage comparison result and the current comparison result based on the preset voltage threshold and the preset current threshold, respectively, query the preset state mapping table based on the voltage comparison result and the current comparison result, and determine the target grounding wire state corresponding to the grounding wire. Compared with the traditional method of using different insulating rods to monitor grounding wires of different voltage levels, this scheme extracts characteristic values ​​of multiple voltage values ​​and multiple current values ​​within a period, determines the voltage comparison result and the current comparison result based on the comparison of the extracted characteristic values ​​with the corresponding thresholds, and comprehensively considers the states of the voltage comparison result and the current comparison result to judge the state of the grounding wire, thereby improving the monitoring efficiency of the grounding wire state monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0036] FIG1 is a schematic diagram of a flow chart of a method for monitoring a ground wire connection state in one embodiment;

[0037] FIG2 is a schematic diagram of a flow chart of a method for monitoring a ground wire connection state in another embodiment;

[0038] FIG3 is a structural block diagram of a ground wire hooking state monitoring device in one embodiment;

[0039] FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] In one embodiment, as shown in FIG1 , a method for monitoring the connection status of a ground wire is provided. This embodiment uses the method applied to a server as an example for illustration. It is understandable that the method can also be applied to a terminal, and can also be applied to a system including a terminal and a server, and is implemented through the interaction between the terminal and the server, and includes the following steps S202 to S208. Among them:

[0042] Step S202: when it is detected that the state monitoring condition is met, each voltage value and each current value collected by the sensor in the ground wire to be monitored within a preset period are obtained.

[0043] Among them, the grounding wire to be monitored may be a grounding wire that needs to be monitored in state. The grounding wire can be used to be connected to the corresponding power equipment in the power grid to achieve electrical conduction to the ground, thereby protecting the safety of the power equipment and related personnel. Therefore, it is necessary to monitor the state of the grounding wire in a timely manner to determine whether the grounding wire has an abnormal state.

[0044] Among them, the terminal can monitor the state changes of the grounding wire in real time, and start the grounding wire state monitoring of the grounding wire when it detects that the state monitoring conditions are met. For example, when the terminal detects that the grounding wire has a corresponding action or position change through the corresponding sensor, it can be determined that the state monitoring conditions are met. Among them, a low-power control module is set in the terminal, which has a sleep design and a trigger wake-up function. When the state of the grounding wire changes, it can automatically wake up the device for detection. When the state monitoring conditions are not met, the terminal can control the corresponding sensor to enter a sleep state.

[0045] Among them, a corresponding sensor can be provided in the above-mentioned grounding wire to be monitored, and the sensor can be used to collect power-related data of the grounding wire. Then, when the status monitoring conditions are met, the terminal can obtain the voltage value and current value collected by the sensor in the grounding wire to be monitored. Among them, the sensor can collect various voltage values ​​and various current values ​​at various time points in real time. In order to realize status monitoring, the terminal can obtain various voltage values ​​and various current values ​​within a preset period collected by the sensor. Among them, the size of the preset period can be set according to actual conditions. The above-mentioned preset period includes multiple time points, and the various voltage values ​​and various current values ​​within the preset period can be the various voltage values ​​and various current values ​​corresponding to each of the above-mentioned time points.

[0046] Among them, the terminal can obtain the various voltage values ​​and current values ​​collected by the above-mentioned sensors through wireless communication. For example, the terminal can obtain the various voltage values ​​and current values ​​collected by the sensor through a wireless communication module. Specifically, the wireless communication module can be a Bluetooth communication method, for example, it can be a Bluetooth communication method that meets the BLE (Bluetooth Low Energy) protocol. The distance between the above-mentioned sensor and the terminal can be greater than or equal to a preset distance, and the preset distance can be determined based on the communication structure of the wireless communication module, for example, it can be greater than or equal to 20 meters. Taking the voltage value as V(t) and the current value as I(t) as an example, the data transmission model can be expressed as: D transmitted (t)={V(t),I(t)}. Among them, D transmitted(t) represents the data transmitted at time point t, and t represents each time point within the preset period.

[0047] Step S204, performing a first characteristic value extraction on each of the above voltage values ​​to obtain a voltage characteristic value, and performing a second characteristic value extraction on each of the above current values ​​to obtain a current characteristic value.

[0048] Among them, the above-mentioned voltage values ​​and current values ​​can be the instantaneous voltage values ​​and instantaneous current values ​​corresponding to the grounding wire to be monitored. When the terminal obtains the voltage values ​​and current values ​​to be monitored, it can extract characteristic values ​​of the voltage values ​​and current values ​​respectively. Among them, the characteristic value can represent the effective value corresponding to each voltage value, and the effective value corresponding to each current value. Then the terminal can perform a first characteristic value extraction on each voltage value within a preset period to obtain a voltage characteristic value. Among them, the voltage characteristic value represents an effective value determined based on each voltage value. The terminal can also perform a second characteristic value extraction on each current value within a preset period to obtain a current characteristic value. Among them, the current characteristic value represents an effective value determined based on each current.

[0049] Step S206, obtaining a voltage comparison result between the voltage characteristic value and a preset voltage threshold, and obtaining a current comparison result between the current characteristic value and a preset current threshold.

[0050] Wherein, after extracting the voltage characteristic values ​​corresponding to the above-mentioned voltage values ​​and extracting the current characteristic values ​​corresponding to the above-mentioned current values, the terminal can compare the voltage characteristic values ​​and the current characteristic values ​​with the corresponding threshold values, respectively. Wherein, a preset voltage threshold and a preset current threshold are pre-set in the terminal. The preset voltage threshold is used to compare with the voltage characteristic value, so that the terminal can obtain the voltage comparison result between the voltage characteristic value and the preset voltage threshold; the preset current threshold can be used to compare with the current characteristic value, so that the terminal can obtain the current comparison result between the current characteristic value and the preset current threshold.

[0051] The preset voltage threshold may represent the voltage characteristic value of the ground wire in a normal state, and the preset current threshold may represent the current characteristic value of the ground wire in a normal state. The preset voltage threshold and the preset current threshold may be preset based on different specifications of the ground wire.

[0052] Step S208, determining the target grounding wire state corresponding to the voltage comparison result and the current comparison result according to a preset state mapping table; the preset state mapping table includes each grounding wire state corresponding to each voltage comparison result and the current comparison result.

[0053] Among them, for the above-determined voltage comparison results and current comparison results, the combination of different comparison results can represent different states of the grounding wire. The terminal can pre-construct a preset state mapping table, and the preset state mapping table includes each grounding wire state corresponding to each of the above-mentioned voltage comparison results and the above-mentioned current comparison results. Therefore, the terminal can determine the target grounding wire state corresponding to the above-mentioned voltage comparison result and the above-mentioned current comparison result according to the preset state mapping table. That is, the terminal can determine the accurate target grounding wire state corresponding to the grounding wire by comprehensively judging the specific numerical comparison state of the voltage comparison result and the current comparison result. Among them, the end point of the above-mentioned preset period can be the current time point, then the above-mentioned target grounding wire state can represent the latest grounding wire state of the grounding wire, so that the terminal can determine the corresponding processing method according to the above-mentioned target grounding wire state.

[0054] In one embodiment, after determining the target grounding wire state corresponding to the voltage comparison result and the current comparison result, it also includes: if the target grounding wire state is a detached state or a removed state, determining that the grounding wire is in an abnormal state; and outputting corresponding alarm information according to the abnormal state.

[0055] In this embodiment, the above-mentioned grounding wire status includes states such as hanging, falling off and being removed. Among them, hanging indicates that the grounding wire is in a normal state, and the falling off and being removed states indicate that the grounding wire is in an abnormal state. When the terminal monitors that the grounding wire is in a falling off state or a removed state based on the above-mentioned target grounding wire status, the terminal determines that the above-mentioned grounding wire is in an abnormal state, so that the terminal can output corresponding alarm information according to the above-mentioned abnormal state. Specifically, the terminal can display the target grounding wire status and issue alarm information such as grounding wire abnormality, so as to remind the corresponding staff to perform abnormal processing and maintenance on the grounding wire, thereby improving the safety of the power equipment and staff where the grounding wire is located.

[0056] In the above-mentioned grounding wire hanging state monitoring method, feature value extraction is performed on each voltage value and each current value collected by the sensor in the grounding wire within a preset period, and the voltage comparison result and the current comparison result are determined based on the preset voltage threshold and the preset current threshold, respectively. The preset state mapping table is queried based on the voltage comparison result and the current comparison result to determine the target grounding wire state corresponding to the grounding wire. Compared with the traditional method of using different insulating rods to detect grounding wires of different voltage levels, this scheme extracts feature values ​​of multiple voltage values ​​and multiple current values ​​within a period, determines the voltage comparison result and the current comparison result based on the comparison of the extracted feature values ​​with the corresponding thresholds, and comprehensively considers the states of the voltage comparison result and the current comparison result to judge the state of the grounding wire, thereby improving the monitoring efficiency of the grounding wire state monitoring.

[0057] In one embodiment, various voltage values ​​and various current values ​​within a preset period collected by a sensor in the grounding wire to be monitored are obtained, including: obtaining the maximum voltage and the maximum current within the above-mentioned preset period; for each time point within the above-mentioned preset period, according to the above-mentioned time point, the preset angular frequency, the preset voltage phase angle and the above-mentioned maximum voltage, determining the voltage value corresponding to the above-mentioned time point; according to the above-mentioned time point, the preset angular frequency, the preset current phase angle and the above-mentioned maximum current, determining the current value corresponding to the above-mentioned time point.

[0058] In this embodiment, the terminal can collect the voltage values ​​corresponding to the grounding wire at each time point and the current values ​​corresponding to each time point in real time through the sensor set in the grounding wire to be monitored. Wherein, the power supply of the power equipment where the above-mentioned grounding wire is located can be an alternating current, and the terminal can collect the instantaneous voltage value and instantaneous current value corresponding to each time point for the grounding wire to be monitored. For example, after obtaining the original voltage information and original current information within the preset period collected by the sensor, the terminal can obtain the maximum voltage and the maximum current within the preset period. Wherein, the preset period includes multiple time points, and for each time point within the preset period, the terminal can obtain the preset angular frequency corresponding to the above-mentioned alternating current, the preset voltage phase angle corresponding to the alternating current, and the preset current phase angle corresponding to the alternating current, so that the terminal can determine the voltage value corresponding to the above-mentioned time point according to the above-mentioned time point, the preset angular frequency, the preset voltage phase angle and the maximum voltage. Wherein, the voltage value corresponding to the above-mentioned time point can be an instantaneous voltage value. The terminal can also determine the current value corresponding to the above-mentioned time point according to the above-mentioned time point, the preset angular frequency, the preset current phase angle and the maximum current. Wherein, the current value corresponding to the above-mentioned time point can be an instantaneous current value.

[0059] The terminal may perform the above calculations of the voltage value and the current value at each time point within the preset period, so that the terminal may obtain each voltage value and each current value corresponding to each time point within the preset period.

[0060] Specifically, the terminal collects the voltage and current and other parameters of the grounding wire in real time through the built-in sensor in the grounding wire, so that the terminal can obtain the sampling data of the voltage V and current I collected by the sensor, that is, the above-mentioned voltage values ​​and current values. Among them, the voltage value can be specifically expressed as: V(t)=V0sin(ωt+φ); the current value can be specifically expressed as: I(t)=I0sin(ωt+θ). Among them, V0 and I0 represent the maximum value of the voltage and the maximum value of the current respectively, ω represents the preset angular frequency, φ is the preset voltage phase angle, θ is the preset current phase angle, V(t) represents the voltage value at time point t, and I(t) represents the current value at time point t.

[0061] Through this embodiment, the terminal can determine the voltage values ​​and current values ​​of the grounding wire at various time points within a preset period based on parameters such as the angular frequency of the alternating current, the maximum voltage, the maximum current and the phase angle, so that the terminal can monitor the status of the grounding wire based on the various voltage values ​​and the current values, thereby improving the efficiency of grounding wire status monitoring.

[0062] In one embodiment, a first characteristic value extraction is performed on each of the above-mentioned voltage values ​​to obtain a voltage characteristic value, and a second characteristic value extraction is performed on each of the above-mentioned current values ​​to obtain a current characteristic value, including: obtaining the first time mean square root corresponding to each of the above-mentioned voltage values ​​within the above-mentioned preset period to obtain the above-mentioned voltage characteristic value; obtaining the second time mean square root corresponding to each of the above-mentioned current values ​​within the above-mentioned preset period to obtain the above-mentioned current characteristic value.

[0063] In this embodiment, in order to perform status monitoring on the grounding wire to be monitored, the terminal can extract characteristic values ​​from the above-obtained voltage values ​​and current values. That is, the terminal can extract effective values ​​based on the voltage values ​​and current values. The effective values ​​and characteristic values ​​represent voltage values ​​and current values ​​that meet the grounding wire status monitoring conditions.

[0064] Among them, the terminal can extract the characteristic value by means of the time mean square root. For example, the terminal can obtain the first time mean square root corresponding to each voltage value within the above preset period, so that the terminal can use the first time mean square root as the voltage characteristic value; the terminal can also obtain the second time mean square root corresponding to each current value within the above preset period, so that the terminal can use the second time mean square root as the current characteristic value.

[0065] Specifically, the terminal can analyze the above-mentioned voltage values ​​and current values ​​through a preset algorithm to obtain voltage characteristic values ​​and current characteristic values. For example, the terminal can extract the effective values ​​corresponding to each voltage value and each current value as key characteristic values, and judge the state of the grounding wire based on the comparison between the characteristic value and the preset threshold. Among them, the effective values ​​of voltage and current can be calculated by the time mean square root to reflect their actual power. The terminal can calculate the time mean square root of each voltage value and each current value respectively, which can be specifically expressed as: ; Among them, V rms Represents the effective value of voltage, also known as the first time mean square root, I rms represents the effective value of the current, also known as the second time mean square root, V(t) represents the instantaneous voltage value at time point t, I(t) represents the instantaneous current value at time point t, and T is the preset period. Thus, the terminal can comprehensively consider each voltage value and each current value within the preset period to obtain the corresponding voltage characteristic value and current characteristic value.

[0066] Through this embodiment, the terminal can use the various voltage values ​​and current values ​​within a preset period to extract the corresponding voltage characteristic values ​​and current characteristic values ​​through a corresponding algorithm. The terminal determines the state of the grounding wire based on the extracted voltage characteristic values ​​and current characteristic values, thereby improving the efficiency of monitoring the state of the grounding wire.

[0067] In one embodiment, according to a preset state mapping table, the target grounding wire state corresponding to the above-mentioned voltage comparison result and the above-mentioned current comparison result is determined, including: if the above-mentioned voltage comparison result is that the above-mentioned voltage characteristic value is greater than or equal to the above-mentioned preset voltage threshold, and the above-mentioned current comparison result is that the above-mentioned current characteristic value is greater than or equal to the above-mentioned preset current threshold, then based on the above-mentioned preset state mapping table, it is determined that the target grounding wire state of the above-mentioned grounding wire is a hanging state.

[0068] In this embodiment, after extracting the above-mentioned voltage characteristic value and current characteristic value, the terminal can monitor the state of the grounding wire based on the voltage characteristic value and the current characteristic value. Among them, the terminal can pre-set a preset voltage threshold and a preset current threshold, the preset voltage threshold represents the minimum voltage characteristic value of the grounding wire in a normal hanging state, and the preset current threshold represents the minimum current characteristic value of the grounding wire in a normal hanging state. The terminal can compare the voltage characteristic value with the preset voltage threshold, and compare the current characteristic value with the preset current threshold, and monitor the state of the grounding wire by comprehensively considering the comparison results of the two parameters. For example, the terminal can query the preset state mapping table with the above-mentioned voltage comparison result and current comparison result, and then obtain the target grounding wire state that matches the specific results of the voltage comparison result and the current comparison result.

[0069] If the terminal detects in the preset state mapping table that the voltage comparison result is that the voltage characteristic value is greater than or equal to the preset voltage threshold, and the current comparison result is that the current characteristic value is greater than or equal to the preset current threshold, the terminal can determine that the target grounding wire state of the connection line is the hooked state based on the preset state mapping table. The hooked state indicates that the grounding wire is in a normal state.

[0070] Specifically, when the ground wire is connected normally, the effective values ​​of the voltage and current should reach the preset threshold value; this is because the ground wire should be able to withstand and conduct normal voltage and current when connected. The specific judgment condition of the terminal can be expressed as: V rms ≥Vt hreshold And I rms ≥I threshold Among them, V rms Indicates the effective value of voltage, I rms Indicates the effective value of the current, Vt hreshold Indicates the preset voltage threshold, It hresholdIndicates the preset current threshold. For the voltage effective value, when the grounding wire is normally connected, there is a stable connection between the grounding wire and the ground, and the voltage can be effectively transmitted. Therefore, the effective value of the voltage should reach or exceed the preset voltage threshold. For the current effective value, the normally connected grounding wire should be able to conduct current to reach the preset current threshold. For example, assuming the preset voltage threshold V threshold is 100 volts, the current threshold I threshold is 10 A. When the terminal is measured at V rms =120V, I rms =15A, the terminal can determine the grounding wire state as the hooked state by matching in the preset state mapping table.

[0071] Through this embodiment, the terminal can comprehensively consider the specific result combination of the voltage comparison result and the current comparison result, match the corresponding grounding wire state, and thus improve the efficiency of monitoring the grounding wire state.

[0072] In one embodiment, according to a preset state mapping table, the target grounding wire state corresponding to the above-mentioned voltage comparison result and the above-mentioned current comparison result is determined, and it also includes: if the above-mentioned voltage comparison result is that the above-mentioned voltage characteristic value is less than the above-mentioned preset voltage threshold, and the above-mentioned current comparison result is that the above-mentioned current characteristic value is greater than or equal to the above-mentioned preset current threshold, then based on the above-mentioned preset state mapping table, it is determined that the target grounding wire state of the above-mentioned grounding wire is a detached state.

[0073] In this embodiment, after extracting the above voltage characteristic value and current characteristic value, the terminal can monitor the state of the ground wire based on the voltage characteristic value and the current characteristic value. The terminal can compare the voltage characteristic value with the preset voltage threshold, and compare the current characteristic value with the preset current threshold, and monitor the state of the ground wire by comprehensively considering the comparison results of the two parameters. For example, the terminal can query the preset state mapping table for the above voltage comparison result and current comparison result, and then obtain the target ground wire state that matches the specific results of the voltage comparison result and the current comparison result.

[0074] The state of the target grounding wire includes a normal state and an abnormal state. If the terminal detects in the preset state mapping table that the voltage comparison result is that the voltage characteristic value is less than the preset voltage threshold, and the current comparison result is that the current characteristic value is greater than or equal to the preset current threshold, the terminal can determine that the state of the target grounding wire of the grounding wire is a detached state based on the preset state mapping table. The detached state indicates that the grounding wire is in an abnormal state.

[0075] Specifically, when the ground wire is disconnected, the effective value of the voltage may be lower than the preset voltage threshold, but the current is still high. The disconnected state refers to the incomplete connection between the ground wire and the ground, which may cause unstable voltage conduction, but because some connections still exist, the current may still remain at a high level. The judgment condition for the terminal to monitor the state of the ground wire based on the above two comparison results can be specifically expressed as: V rms <V threshold And I rms ≥I threshold Among them, V rms Indicates the effective value of voltage, I rms Represents the effective value of the current, V threshold Indicates the preset voltage threshold, I threshold Indicates the preset current threshold.

[0076] In the disconnected state, the connection between the ground wire and the ground is unstable or partially disconnected, resulting in the inability to fully conduct the voltage, and the effective value of the voltage may be lower than the preset voltage threshold. In addition, although the voltage conduction is unstable, the current may remain at a high level, reaching or exceeding the preset current threshold, because the ground wire is still partially connected. For example, assuming the preset voltage threshold V threshold is 100 volts, the current threshold I threshold is 10 A. When the terminal is measured at V rms =80V, I rms =12A, the terminal can determine that the ground wire state is a dropped state based on a preset state mapping table.

[0077] Through this embodiment, the terminal can comprehensively consider the specific result combination of the voltage comparison result and the current comparison result, match the corresponding grounding wire state, and thus improve the efficiency of monitoring the grounding wire state.

[0078] In one embodiment, according to a preset state mapping table, the target grounding wire state corresponding to the above-mentioned voltage comparison result and the above-mentioned current comparison result is determined, and it also includes: if the above-mentioned voltage comparison result is that the above-mentioned voltage characteristic value is less than the above-mentioned preset voltage threshold, and the above-mentioned current comparison result is that the above-mentioned current characteristic value is less than the above-mentioned preset current threshold, then based on the above-mentioned preset state mapping table, it is determined that the target grounding wire state of the above-mentioned grounding wire is a removed state.

[0079] In this embodiment, the terminal can further monitor the state of the ground wire based on the voltage characteristic value and the current characteristic value. Among them, the terminal can compare the voltage characteristic value with the preset voltage threshold, and compare the current characteristic value with the preset current threshold, and monitor the state of the ground wire by comprehensively considering the comparison results of the two parameters. For example, the terminal can query the preset state mapping table for the above voltage comparison result and current comparison result, and then obtain the target ground wire state that matches the specific results of the voltage comparison result and the current comparison result.

[0080] The state of the target grounding wire includes a normal state and an abnormal state. If the terminal detects in the preset state mapping table that the voltage comparison result is that the voltage characteristic value is less than the preset voltage threshold, and the current comparison result is that the current characteristic value is less than the preset current threshold, then the terminal can determine that the state of the target grounding wire of the grounding wire is a removed state based on the preset state mapping table. The removed state indicates that the grounding wire is in an abnormal state.

[0081] Specifically, when the ground wire is removed, the effective values ​​of the voltage and current are both lower than the preset threshold. The removal state means that the ground wire is completely separated from the ground, resulting in the inability of voltage and current to conduct. The judgment condition for the terminal to monitor the state of the ground wire based on the above two comparison results can be specifically expressed as: V rms <V threshold And I rms <I threshold Among them, V rms Indicates the effective value of voltage, I rms Represents the effective value of the current, V threshold Indicates the preset voltage threshold, I threshold Indicates the preset current threshold.

[0082] In the removed state, the ground wire is completely disconnected from the ground, and the voltage cannot be conducted, so the effective value of the voltage is lower than the preset voltage threshold. Similarly, due to the complete disconnection, the current cannot be conducted, and the effective value of the current is lower than the preset current threshold. For example, assuming the preset voltage threshold V threshold is 100 volts, the current threshold I threshold is 10 A. When the terminal is measured at V rms =50V, I rms =5A, the terminal can determine that the grounding wire state is removed based on the preset state mapping table.

[0083] Through this embodiment, the terminal can comprehensively consider the specific result combination of the voltage comparison result and the current comparison result, match the corresponding grounding wire state, and thus improve the efficiency of monitoring the grounding wire state.

[0084] In an exemplary embodiment, as shown in FIG. 2, FIG. 2 is a flow chart of a method for monitoring the state of a grounding wire hookup in another embodiment. In this embodiment, a sensor is provided in the grounding wire to be monitored for collecting parameters such as the voltage and current of the grounding wire. The terminal may be provided with a wireless communication module and a central control system. Among them, the grounding wire to be monitored may be any grounding wire in the power grid. The wireless communication module may support Bluetooth communication, and the communication distance may be greater than or equal to a preset distance, such as 20 meters, in accordance with the low-power Bluetooth protocol. The terminal and the sensor may also be provided with a low-power control module, which has a sleep and trigger wake-up function. For example, when the terminal detects that the state of the grounding wire has changed, the sensor and the terminal may be automatically awakened for state monitoring, and when the state of the grounding wire has not changed for a period of time, the terminal and the sensor may enter a sleep state. An intelligent interaction module may also be provided in the terminal, which may realize synchronization and interaction of grounding wire state information, such as synchronization of grounding wire state with the terminal of the corresponding maintenance personnel.

[0085] Specifically, the terminal collects the voltage, current and other parameters of the grounding wire in real time through the built-in sensor module; the terminal obtains the collected data through the wireless communication module and transmits it to the central control system for processing. After the terminal receives the data through the central control system, it uses a preset algorithm to analyze it, such as extracting the voltage characteristic value and the current characteristic value through the square root of the time mean, and determining the hanging state of the grounding wire based on the comprehensive judgment result of the voltage characteristic value and the current characteristic value. Among them, the hanging state of the above-mentioned grounding wire includes the states of hanging, falling off and being removed. The terminal can also display the determined grounding wire state such as the hanging state, the falling state and the removal state, and output an alarm message when the state is abnormal. Among them, when the state of the grounding wire does not change, the terminal and the sensor can enter a dormant state to reduce power consumption; when the state changes, the terminal and the sensor can automatically wake up and detect.

[0086] Through the above embodiments, the terminal extracts characteristic values ​​of multiple voltage values ​​and multiple current values ​​within a period, determines the voltage comparison result and the current comparison result based on the comparison of the extracted characteristic values ​​with the corresponding thresholds, and comprehensively considers the states of the voltage comparison result and the current comparison result to judge the state of the grounding wire, thereby improving the monitoring efficiency of the grounding wire state monitoring. In addition, manual intervention is reduced through automated detection, which significantly improves the detection efficiency. Through high-precision sensors and intelligent algorithms, the accuracy rate of grounding wire state recognition is achieved to be ≥ 95%. In addition, the sleep design and trigger wake-up function effectively reduce power consumption and extend the battery life of the device. Through Bluetooth communication, the stability and reliability of data transmission are ensured.

[0087] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0088] Based on the same inventive concept, the embodiment of the present application also provides a ground wire hanging state monitoring device for implementing the ground wire hanging state monitoring method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more ground wire hanging state monitoring device embodiments provided below can refer to the limitations of the ground wire hanging state monitoring method above, and will not be repeated here.

[0089] In an exemplary embodiment, as shown in FIG3 , a ground wire connection state monitoring device is provided, comprising: a detection module 500, an extraction module 502, a comparison module 504 and a monitoring module 506, wherein:

[0090] The detection module 500 is used to obtain each voltage value and each current value collected by the sensor in the ground wire to be monitored within a preset period when it is detected that the state monitoring condition is met.

[0091] The extraction module 502 is used to perform a first characteristic value extraction on each of the above voltage values ​​to obtain a voltage characteristic value, and to perform a second characteristic value extraction on each of the above current values ​​to obtain a current characteristic value.

[0092] The comparison module 504 is used to obtain a voltage comparison result between the voltage characteristic value and a preset voltage threshold, and to obtain a current comparison result between the current characteristic value and a preset current threshold.

[0093] The monitoring module 506 is used to determine the target grounding wire state corresponding to the voltage comparison result and the current comparison result according to a preset state mapping table; the preset state mapping table includes each grounding wire state corresponding to each voltage comparison result and the current comparison result.

[0094] In one embodiment, the detection module 500 is specifically used to obtain the maximum voltage and the maximum current within the preset period; for each time point within the preset period, the voltage value corresponding to the time point is determined according to the time point, the preset angular frequency, the preset voltage phase angle and the maximum voltage; the current value corresponding to the time point is determined according to the time point, the preset angular frequency, the preset current phase angle and the maximum current.

[0095] In one embodiment, the extraction module 502 is specifically used to obtain the first time mean square root corresponding to each of the voltage values ​​within the preset period to obtain the voltage characteristic value; and to obtain the second time mean square root corresponding to each of the current values ​​within the preset period to obtain the current characteristic value.

[0096] In one embodiment, the monitoring module 506 is specifically used to determine that the target grounding wire state of the grounding wire is a hanging state based on the preset state mapping table if the voltage comparison result is that the voltage characteristic value is greater than or equal to the preset voltage threshold, and the current comparison result is that the current characteristic value is greater than or equal to the preset current threshold.

[0097] In one embodiment, the monitoring module 506 is specifically used to determine that the target grounding wire state of the grounding wire is a detached state based on the preset state mapping table if the voltage comparison result is that the voltage characteristic value is less than the preset voltage threshold, and the current comparison result is that the current characteristic value is greater than or equal to the preset current threshold.

[0098] In one embodiment, the monitoring module 506 is specifically used to determine that the target grounding wire state of the grounding wire is a removed state based on the preset state mapping table if the voltage comparison result is that the voltage characteristic value is less than the preset voltage threshold, and the current comparison result is that the current characteristic value is less than the preset current threshold.

[0099] In one embodiment, the device further includes: an alarm module, configured to determine that the grounding wire is in an abnormal state if the target grounding wire is in a detached state or a removed state; and output corresponding alarm information according to the abnormal state.

[0100] Each module in the above-mentioned ground wire hooking state monitoring device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0101] In an exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be shown in FIG4. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, the memory, and the input / output interface are connected via a system bus, and the communication interface, the display unit, and the input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner may be implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a method for monitoring the state of grounding wire hooking is implemented. The display unit of the computer device is used to form a visually visible picture, which may be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0102] Those skilled in the art will understand that the structure shown in FIG. 4 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0103] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the above-mentioned ground wire hanging state monitoring method when executing the computer program.

[0104] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned ground wire hanging state monitoring method is implemented.

[0105] In one embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the above-mentioned ground wire hanging state monitoring method is implemented.

[0106] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0107] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0108] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0109] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for monitoring the hanging state of a ground wire, characterized in that: The method comprises: When it is detected that the state monitoring condition is met, each voltage value and each current value collected by the sensor in the ground wire to be monitored within a preset period are obtained; Performing a first characteristic value extraction on each of the voltage values ​​to obtain a voltage characteristic value, and performing a second characteristic value extraction on each of the current values ​​to obtain a current characteristic value; Obtaining a voltage comparison result between the voltage characteristic value and a preset voltage threshold, and obtaining a current comparison result between the current characteristic value and a preset current threshold; According to a preset state mapping table, a target grounding wire state corresponding to the voltage comparison result and the current comparison result is determined; the preset state mapping table includes each grounding wire state corresponding to each voltage comparison result and the current comparison result.

2. The method according to claim 1, characterized in that The step of obtaining each voltage value and each current value collected by a sensor in the ground wire to be monitored within a preset period includes: Obtaining a maximum voltage and a maximum current within the preset period; For each time point within the preset period, determining a voltage value corresponding to the time point according to the time point, the preset angular frequency, the preset voltage phase angle and the maximum voltage; The current value corresponding to the time point is determined according to the time point, the preset angular frequency, the preset current phase angle and the current maximum value.

3. The method according to claim 1, characterized in that The step of extracting a first characteristic value from each of the voltage values ​​to obtain a voltage characteristic value, and extracting a second characteristic value from each of the current values ​​to obtain a current characteristic value comprises: Obtaining the first time mean square root corresponding to each of the voltage values ​​within the preset period to obtain the voltage characteristic value; The second time mean square root corresponding to each of the current values ​​within the preset period is obtained to obtain the current characteristic value.

4. The method according to claim 1, characterized in that: The determining, according to a preset state mapping table, a target grounding line state corresponding to the voltage comparison result and the current comparison result includes: If the voltage comparison result is that the voltage characteristic value is greater than or equal to the preset voltage threshold, and the current comparison result is that the current characteristic value is greater than or equal to the preset current threshold, then based on the preset state mapping table, it is determined that the target grounding wire state of the grounding wire is a hanging state.

5. The method according to claim 1, characterized in that The step of determining the target grounding line state corresponding to the voltage comparison result and the current comparison result according to the preset state mapping table further includes: If the voltage comparison result is that the voltage characteristic value is less than the preset voltage threshold, and the current comparison result is that the current characteristic value is greater than or equal to the preset current threshold, the target grounding wire state of the grounding wire is determined to be a detached state based on the preset state mapping table.

6. The method according to claim 1, characterized in that The step of determining the target grounding line state corresponding to the voltage comparison result and the current comparison result according to the preset state mapping table further includes: If the voltage comparison result is that the voltage characteristic value is less than the preset voltage threshold, and the current comparison result is that the current characteristic value is less than the preset current threshold, the target grounding wire state of the grounding wire is determined to be a removed state based on the preset state mapping table.

7. The method according to any one of claims 1 to 6, characterized in that: After determining the target grounding line state corresponding to the voltage comparison result and the current comparison result, the method further includes: If the target grounding wire is in a detached state or a removed state, determining that the grounding wire is in an abnormal state; Output corresponding alarm information according to the abnormal state.

8. A ground wire hanging state monitoring device, characterized in that: The device comprises: A detection module, used to obtain each voltage value and each current value collected by a sensor in the ground wire to be monitored within a preset period when it is detected that the state monitoring condition is met; An extraction module, used for performing a first characteristic value extraction on each of the voltage values ​​to obtain a voltage characteristic value, and performing a second characteristic value extraction on each of the current values ​​to obtain a current characteristic value; A comparison module, used to obtain a voltage comparison result between the voltage characteristic value and a preset voltage threshold, and to obtain a current comparison result between the current characteristic value and a preset current threshold; The monitoring module is used to determine the target grounding wire state corresponding to the voltage comparison result and the current comparison result according to a preset state mapping table; the preset state mapping table includes each grounding wire state corresponding to each voltage comparison result and the current comparison result.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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