Method and device for detecting safe distance of dangerous point of overhead transmission line

Abstract

The invention discloses a method and a device for detecting the safety distance of a dangerous point of an overhead transmission line, and relates to the technical field of power construction safety monitoring. Point data of an object in a monitoring range is collected and processed by means of a millimeter wave radar monitoring technology, and height information of a target wire at the dangerous point is calculated through an average filtering algorithm; data transmission and communication between the device and a remote control center are achieved through the communication module, high-precision real-time measurement of the safety distance of the dangerous point of the power transmission line can be achieved, the device is not limited by weather conditions easily, operation is easy, and labor cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction safety monitoring, and in particular to a method and device for detecting the safety distance of a dangerous point of an overhead power transmission line. Background Art

[0002] Overhead transmission lines are a key component of the power system, responsible for transmitting electricity from power stations to user terminals. However, lines may pose potential dangers when passing through high-voltage lines, high-speed railways, and highways. At present, the monitoring method of the safe distance of dangerous points mainly relies on manual observation with the naked eye, which is time-consuming and labor-intensive, and it is difficult to achieve high-precision real-time monitoring. Generally, radar technology can be used for distance measurement, but laser radar ranging has certain limitations in practical applications due to the limitations of rainy and foggy weather. The millimeter-wave radar ranging solution is selected, which can be applied to general rainy and foggy weather, but the accuracy of millimeter-wave radar ranging is not as good as that of laser radar, and the collected point data is unstable. Summary of the invention

[0003] The purpose of the present invention is to provide a method and device for detecting the safety distance of dangerous points of overhead power transmission lines, process unstable data, realize real-time monitoring of the safety distance of dangerous points of tension wire laying of overhead power transmission lines, and solve the technical problems existing in the prior art.

[0004] The present invention is achieved through the following technical solutions:

[0005] On the one hand, the present invention provides a method for detecting the safety distance of a dangerous point of an overhead transmission line, comprising:

[0006] Obtaining object point data collected by a millimeter wave radar; wherein the millimeter wave radar is set below a dangerous point of an overhead power transmission line;

[0007] Gridding the data collection area of ​​the millimeter wave radar to obtain a plurality of grids corresponding to the data collection area, and determining the object point data corresponding to each grid according to the object point data collected by the millimeter wave radar;

[0008] The object point data corresponding to each grid is processed by using an average filtering algorithm to determine the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area;

[0009] The safety distance of the dangerous point of the overhead transmission line is detected according to the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area.

[0010] In a possible implementation, the data collection area of ​​the millimeter wave radar is gridded to obtain a plurality of grids corresponding to the data collection area, including:

[0011] The data collection area of ​​the millimeter wave radar is divided into m*m small square grids with a side length of d to obtain multiple grids corresponding to the data collection area.

[0012] In a possible implementation, an average filtering algorithm is used to process the object point data corresponding to each grid to determine the stable quantity values ​​corresponding to the multiple grids corresponding to the data acquisition area, including:

[0013] For any grid, according to the object point data corresponding to each grid, determine the n target object point data corresponding to the grid collected within a certain period of time;

[0014] For any grid, obtain the average number of points corresponding to the target object point data corresponding to other grids adjacent to the grid, and obtain the stable number value corresponding to the grid;

[0015] All grids are traversed to determine stable quantity values ​​corresponding to a plurality of grids corresponding to the data collection area.

[0016] In a possible implementation, detecting the safety distance of a dangerous point of an overhead transmission line according to the stable quantity values ​​corresponding to the plurality of grids corresponding to the data collection area includes:

[0017] For any grid, determine whether the stable quantity value corresponding to the grid is greater than a preset threshold. If so, determine that the grid is invaded by foreign objects and obtain the invaded grid. Otherwise, determine that the grid is a normal grid.

[0018] Traverse all grids to obtain invaded grids; if the number of invaded grids is 0, the grid farthest from the ground is taken as the lowest position of the overhead transmission line at the dangerous point;

[0019] Determine the invaded grid closest to the object invading the millimeter-wave radar, and obtain the target invaded grid;

[0020] The target invaded grid is taken as the lowest position of the overhead transmission line at the dangerous point, and the safety distance is determined according to the lowest position of the overhead transmission line at the dangerous point.

[0021] In a possible implementation, determining the safety distance according to the lowest position of the overhead transmission line at the danger point includes:

[0022] According to the lowest position of the overhead transmission line at the dangerous point, the distance between the lowest position and the ground below the dangerous point is determined to obtain the safe distance.

[0023] In a possible implementation manner, before the data collection area of ​​the millimeter wave radar is gridded, the method further includes:

[0024] Set the minimum monitoring height h, and remove the invalid area below the minimum monitoring height h in the data collection area of ​​the millimeter-wave radar.

[0025] In a possible implementation manner, after detecting the safety distance of the dangerous point of the overhead transmission line, the method further includes:

[0026] The safety distance is transmitted to a remote control center and displayed via the remote control center.

[0027] In a possible implementation manner, after detecting the safety distance of the dangerous point of the overhead transmission line, the method further includes:

[0028] When the safety distance is less than the preset wire height danger value, an early warning is given and the tensioning machine is automatically controlled to stop.

[0029] On the other hand, the present invention provides a device for detecting the safety distance of a dangerous point of an overhead power transmission line, comprising: a data acquisition module and a data calculation module;

[0030] The data acquisition module is used to acquire object point data collected by the millimeter wave radar; wherein the millimeter wave radar is arranged below the dangerous point of the overhead power transmission line;

[0031] The data calculation module is used to grid the data collection area of ​​the millimeter wave radar to obtain multiple grids corresponding to the data collection area, and determine the object point data corresponding to each grid according to the object point data collected by the millimeter wave radar; use an average filtering algorithm to process the object point data corresponding to each grid to determine the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area; and detect the safe distance of the dangerous point of the overhead transmission line according to the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area.

[0032] In a possible implementation, a communication module is also included;

[0033] The communication module is used to transmit the safety distance to a remote control center and display it through the remote control center.

[0034] The present invention provides a method and device for detecting the safety distance of dangerous points in overhead power transmission lines. The method collects and processes point data of objects within the monitoring range by means of millimeter wave radar monitoring technology, calculates the height information of the target wire at the dangerous point by means of an average filtering algorithm, and then uses a communication module to realize data transmission and communication between the device and a remote control center. The method can realize high-precision real-time measurement of the safety distance of dangerous points in power transmission lines, is not easily restricted by climatic conditions, is simple to operate, and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0036] Figure 1 A flow chart of a method for detecting a safety distance of a dangerous point on an overhead transmission line provided in an embodiment of the present invention.

[0037] Figure 2 A schematic structural diagram of an overhead power transmission line provided in an embodiment of the present invention.

[0038] Figure 3 A schematic diagram of the process of converting object point data in a grid into point quantity provided by an embodiment of the present invention.

[0039] Figure 4 This is an example diagram of a partial area of ​​data processing provided by an embodiment of the present invention.

[0040] Figure 5 A schematic structural diagram of a device for detecting the safety distance of a dangerous point on an overhead power transmission line provided in an embodiment of the present invention.

[0041] Marks and corresponding parts names in the attached drawings:

[0042] 1-Data acquisition module, 2-Data calculation module, 3-Communication module, 4-Remote control center. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0044] Example 1

[0045] like Figure 1 As shown, an embodiment of the present invention provides a method for detecting a safety distance of a dangerous point of an overhead transmission line, comprising:

[0046] S1. Obtaining object point data collected by a millimeter wave radar; wherein the millimeter wave radar is arranged below a dangerous point of an overhead power transmission line;

[0047] It is worth noting that the dangerous point of the transmission line refers to the position and location where dangerous accidents may occur during construction. The dangerous point described in the present invention is manually defined according to the construction site conditions. The monitoring height limit of the millimeter wave radar collecting object data is set by the control center.

[0048] S2. Gridding the data collection area of ​​the millimeter wave radar to obtain a plurality of grids corresponding to the data collection area, and determining the object point data corresponding to each grid according to the object point data collected by the millimeter wave radar;

[0049] S3, using an average filtering algorithm to process the object point data corresponding to each grid, and determining the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area;

[0050] S4. Detect the safety distance of the dangerous point of the overhead transmission line according to the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area.

[0051] In a possible implementation, the data collection area of ​​the millimeter wave radar is gridded to obtain a plurality of grids corresponding to the data collection area, including:

[0052] The data collection area of ​​the millimeter wave radar is divided into m*m small square grids with a side length of d to obtain multiple grids corresponding to the data collection area.

[0053] In a possible implementation, an average filtering algorithm is used to process the object point data corresponding to each grid to determine the stable quantity values ​​corresponding to the multiple grids corresponding to the data acquisition area, including:

[0054] For any grid, according to the object point data corresponding to each grid, determine the n target object point data corresponding to the grid collected within a certain period of time;

[0055] For any grid, obtain the average number of points corresponding to the target object point data corresponding to other grids adjacent to the grid, and obtain the stable number value corresponding to the grid;

[0056] All grids are traversed to determine stable quantity values ​​corresponding to a plurality of grids corresponding to the data collection area.

[0057] In a possible implementation, detecting the safety distance of a dangerous point of an overhead transmission line according to the stable quantity values ​​corresponding to the plurality of grids corresponding to the data collection area includes:

[0058] For any grid, determine whether the stable quantity value corresponding to the grid is greater than a preset threshold. If so, determine that the grid is invaded by foreign objects and obtain the invaded grid. Otherwise, determine that the grid is a normal grid.

[0059] Traverse all grids to obtain invaded grids; if the number of invaded grids is 0, the grid farthest from the ground is taken as the lowest position of the overhead transmission line at the dangerous point;

[0060] Determine the invaded grid closest to the object invading the millimeter-wave radar, and obtain the target invaded grid;

[0061] The target invaded grid is taken as the lowest position of the overhead transmission line at the dangerous point, and the safety distance is determined according to the lowest position of the overhead transmission line at the dangerous point.

[0062] In this embodiment, the grid is calculated as a point, and the center point of the grid is used as the coordinate of the grid.

[0063] In a possible implementation, determining the safety distance according to the lowest position of the overhead transmission line at the danger point includes:

[0064] According to the lowest position of the overhead transmission line at the dangerous point, the distance between the lowest position and the ground below the dangerous point is determined to obtain the safe distance.

[0065] In a possible implementation manner, before the data collection area of ​​the millimeter wave radar is gridded, the method further includes:

[0066] Set the minimum monitoring height h, and remove the invalid area below the minimum monitoring height h in the data collection area of ​​the millimeter-wave radar.

[0067] In a possible implementation manner, after detecting the safety distance of the dangerous point of the overhead transmission line, the method further includes:

[0068] The safety distance is transmitted to a remote control center and displayed via the remote control center.

[0069] In a possible implementation manner, after detecting the safety distance of the dangerous point of the overhead transmission line, the method further includes:

[0070] When the safety distance is less than the preset wire height danger value, an early warning is given and the tensioning machine is automatically controlled to stop.

[0071] The present invention provides a method for detecting the safety distance of dangerous points of overhead power transmission lines. By using millimeter wave radar monitoring technology, point data of objects within the monitoring range are collected and processed, and the height information of the target wire at the dangerous point is calculated by an average filtering algorithm. Then, a communication module is used to realize data transmission and communication between the device and a remote control center. High-precision real-time measurement of the safety distance of dangerous points of power transmission lines can be achieved, and the method is not easily restricted by climatic conditions. At the same time, the method is simple to operate and reduces labor costs.

[0072] Example 2

[0073] This embodiment is a further example based on Embodiment 1, and the specific principles are as follows.

[0074] Before performing the detection of the safe distance of dangerous points on overhead transmission lines, a millimeter wave radar monitoring device can be placed first.

[0075] A simplified schematic diagram of an overhead transmission line is shown in Figure 2 As shown, A and B are the suspension point positions of the transmission towers on both sides, and the suspension points of the towers on both sides are connected to the two ends of the overhead transmission line to be tested. When the line passes through high-voltage lines, high-speed railways, and highways, it may pose a potential danger. The present invention first manually determines the dangerous point, and then places a millimeter-wave radar monitoring device under the dangerous point of the overhead transmission line.

[0076] This embodiment provides a method for detecting a safety distance of a dangerous point of an overhead transmission line, which may include:

[0077] Step 1: Data collection;

[0078] First, set the minimum height limit L for the millimeter wave radar data collection area, such as Figure 1 As shown, the millimeter wave radar collects object point data within the monitoring area, including the time point of data collection, the target ID, and the distance of the target in the longitude and latitude directions.

[0079] Step 2: Data processing;

[0080] a. The computing unit reads the object point data collected by the millimeter wave radar;

[0081] b. Divide the millimeter wave radar acquisition area into m small square grids with a side length of d;

[0082] c. The n data collected within a certain period of time Δt are recorded as t0, t1...tn-1 respectively.

[0083] d. For each grid in the area, find the average number of points in the surrounding 3×3 grids and calibrate this value as the stable number value of the central grid points.

[0084] e. If the stable number value X of the grid point is greater than the parameter Y, it is considered that there is an object intrusion in the network, otherwise, it is considered that there is no object intrusion in the grid;

[0085] f. Find the grid position closest to the millimeter-wave radar where an object has invaded, and record this grid position as the lowest point of the wire.

[0086] The present invention uses an average filtering algorithm to process object point data. The algorithm creates a filter kernel of size (3,3) to smooth the point data image within the Δt time. During the processing, for each grid, the filter kernel obtains the point quantity values ​​of the 3×3 neighborhood around it and calculates their average value, and uses this average value as the stable value of the point quantity of the grid. Through the average filtering method, the present invention can more accurately determine whether there is wire intrusion in the point data image. The following example illustrates the calculation process:

[0087] Take part of the grid area and first determine whether there is an object intrusion in the X grid. The grid area divides the point data of the object monitored by the millimeter wave radar, as shown in the following figure. Figure 3 As shown in the figure, if the millimeter wave radar detects that the grid with coordinates (1,1) has 4 point data, the recorded value is 4, and so on. Assume that within the time Δt, the millimeter wave radar measures a total of 3 sets of data, namely t0, t1, and t2. The threshold of the number of stable points in the grid is set to 4. If it exceeds 4, it is considered that there is an intrusion, otherwise, it is considered that there is no intrusion.

[0088] As attached Figure 4 The calculation process for the number of central grid X stable points shown should be:

[0089]

[0090] X≈4.19>4

[0091] Therefore, it is determined that there is an object intrusion in the X grid.

[0092] In an embodiment of the present invention, the method can identify the lowest point of wire intrusion, that is, accurately locate the bottom position of the target wire in a specific grid in the image. Assuming that there is an object intrusion at the grid coordinates (1,2), (1,3), (2,2), (3,2), the bottom position is the grid with coordinates (3,2), so the grid is the lowest point of the measured wire.

[0093] Optionally, target objects that do not need to be monitored, such as safety nets, may be excluded by setting a minimum monitoring height h.

[0094] Step 3: Data transmission and dynamic display;

[0095] The present invention transmits the processed height data of the lowest point of the wire and parameters such as the power supply voltage to the remote control center in real time. The control center can not only monitor and display the safety distance data of the dangerous point in real time, but also make real-time adjustments and feedback based on the received data, so as to better adapt to the needs of different scenarios and ensure the safety and stability of the system operation.

[0096] Example 3

[0097] like Figure 5 As shown, the present invention provides a detection device for the safety distance of a dangerous point of an overhead power transmission line, comprising: a data acquisition module 1 and a data calculation module 2;

[0098] The data acquisition module 1 is used to acquire object point data collected by the millimeter wave radar; wherein the millimeter wave radar is arranged below the dangerous point of the overhead power transmission line;

[0099] The data calculation module 2 is used to grid the data collection area of ​​the millimeter wave radar to obtain multiple grids corresponding to the data collection area, and determine the object point data corresponding to each grid based on the object point data collected by the millimeter wave radar; use an average filtering algorithm to process the object point data corresponding to each grid to determine the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area; and detect the safe distance of the dangerous point of the overhead transmission line based on the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area.

[0100] In a possible implementation, it further includes a communication module 3;

[0101] The communication module 3 is used to transmit the safety distance to the remote control center 4 and display it through the remote control center.

[0102] The communication module 3 can not only transmit the monitoring data to the remote control center 4 for analysis and processing, but also receive the instructions of the remote control center 4 to realize the remote control of the device. For example, the height limit of the wire detected by the millimeter wave radar device can be set as needed, and the relevant equipment can be automatically controlled according to the actual situation, so as to flexibly adjust the outlet tension of the tension machine equipment.

[0103] The danger value of the wire height detected by the millimeter-wave radar device can be set as needed. When the data transmitted back to the control console exceeds the set danger threshold, the tensioning machine is automatically controlled to shut down.

[0104] It is worth noting that the detection device for the safe distance of dangerous points of overhead transmission lines provided in the embodiment of the present invention can implement the technical solution described in Example 1 or Example 2, and its principles and beneficial effects are similar, which will not be repeated here.

[0105] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The schemes in the embodiments of the present invention may be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0106] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0107] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0108] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0109] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0110] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for detecting the safety distance of a dangerous point of an overhead transmission line, characterized in that: include: Obtaining object point data collected by a millimeter wave radar; wherein the millimeter wave radar is set below a dangerous point of an overhead power transmission line; Gridding the data collection area of ​​the millimeter wave radar to obtain a plurality of grids corresponding to the data collection area, and determining the object point data corresponding to each grid according to the object point data collected by the millimeter wave radar; The object point data corresponding to each grid is processed by using an average filtering algorithm to determine the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area; The safety distance of the dangerous point of the overhead transmission line is detected according to the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area.

2. The method for detecting the safety distance of dangerous points of overhead power transmission lines according to claim 1, characterized in that: The data collection area of ​​the millimeter wave radar is gridded to obtain multiple grids corresponding to the data collection area, including: The data collection area of ​​the millimeter wave radar is divided into m*m small square grids with a side length of d to obtain multiple grids corresponding to the data collection area.

3. The method for detecting the safety distance of dangerous points of overhead power transmission lines according to claim 1, characterized in that: The object point data corresponding to each grid is processed by using an average filtering algorithm to determine the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area, including: For any grid, according to the object point data corresponding to each grid, determine the n target object point data corresponding to the grid collected within a certain period of time; For any grid, obtain the average number of points corresponding to the target object point data corresponding to other grids adjacent to the grid, and obtain the stable number value corresponding to the grid; All grids are traversed to determine stable quantity values ​​corresponding to a plurality of grids corresponding to the data collection area.

4. The method for detecting the safety distance of dangerous points of overhead power transmission lines according to claim 1, characterized in that: Detecting the safety distance of the dangerous point of the overhead transmission line according to the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area includes: For any grid, determine whether the stable quantity value corresponding to the grid is greater than a preset threshold. If so, determine that the grid is invaded by foreign objects and obtain the invaded grid. Otherwise, determine that the grid is a normal grid. Traverse all grids to obtain invaded grids; if the number of invaded grids is 0, the grid farthest from the ground is taken as the lowest position of the overhead transmission line at the dangerous point; Determine the invaded grid closest to the object invading the millimeter-wave radar, and obtain the target invaded grid; The target invaded grid is taken as the lowest position of the overhead transmission line at the dangerous point, and the safety distance is determined according to the lowest position of the overhead transmission line at the dangerous point.

5. The method for detecting the safety distance of dangerous points of overhead power transmission lines according to claim 4, characterized in that: Determine the safety distance based on the lowest position of the overhead transmission line at the dangerous point, including: According to the lowest position of the overhead transmission line at the dangerous point, the distance between the lowest position and the ground below the dangerous point is determined to obtain the safe distance.

6. The method for detecting the safety distance of dangerous points of overhead power transmission lines according to claim 1, characterized in that: Before meshing the data collection area of ​​the millimeter wave radar, it also includes: Set the minimum monitoring height h, and remove the invalid area below the minimum monitoring height h in the data collection area of ​​the millimeter-wave radar.

7. The method for detecting the safety distance of dangerous points of overhead power transmission lines according to claim 1, characterized in that: After detecting the safety distance of dangerous points on overhead transmission lines, it also includes: The safety distance is transmitted to a remote control center and displayed via the remote control center.

8. The method for detecting the safety distance of dangerous points of overhead power transmission lines according to claim 1, characterized in that: After detecting the safety distance of dangerous points on overhead transmission lines, it also includes: When the safety distance is less than the preset wire height danger value, an early warning is given and the tensioning machine is automatically controlled to stop.

9. A device for detecting the safety distance of dangerous points of overhead power transmission lines, characterized in that: include: Data acquisition module and data calculation module; The data acquisition module is used to acquire object point data collected by the millimeter wave radar; wherein the millimeter wave radar is arranged below the dangerous point of the overhead power transmission line; The data calculation module is used to grid the data collection area of ​​the millimeter wave radar to obtain multiple grids corresponding to the data collection area, and determine the object point data corresponding to each grid according to the object point data collected by the millimeter wave radar; use an average filtering algorithm to process the object point data corresponding to each grid to determine the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area; and detect the safe distance of the dangerous point of the overhead transmission line according to the stable quantity values ​​corresponding to the multiple grids corresponding to the data collection area.

10. The device for detecting the safety distance of dangerous points of overhead power transmission lines according to claim 9, characterized in that: Also includes a communication module; The communication module is used to transmit the safety distance to a remote control center and display it through the remote control center.

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