A front-end monitoring method and system for ice dancing on overhead power transmission lines

Abstract

The present invention relates to a front-end monitoring method and system for ice dancing of overhead power transmission lines. First, the conductor diameter and the coordinates of the conductor center point are obtained based on an image without ice coating; and the monitoring conductor diameter and the coordinates of the monitoring conductor center point are obtained based on a periodic monitoring image; then the diameter of the monitoring conductor is judged, and when the diameter of the monitoring conductor is less than an ice coating set value, it is determined that no ice coating occurs, and when the diameter of the monitoring conductor is greater than or equal to the ice coating set value, the ice coating thickness and ice coating shape are obtained based on the conductor diameter, the coordinates of the conductor center point, the monitoring conductor diameter and the coordinates of the monitoring conductor center point; finally, the conductor dancing frequency and the conductor dancing amplitude are obtained, and the conductor dancing frequency, the conductor dancing amplitude, the ice coating thickness and the ice coating shape are sent to a supervision platform. The present invention can greatly reduce the performance requirements of the server, and at the same time provide a good foundation for the server to accurately obtain dancing.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line dancing monitoring, and in particular to a front-end monitoring method and system for ice dancing of overhead power transmission lines. Background Art

[0002] Affected by the southward movement of cold air in winter, overhead transmission lines are frequently damaged by ice and dancing. The dancing is very harmful to the lines. It is not only easy to cause line flashover and tripping, but more seriously, the dancing can easily cause serious damage to the conductors themselves, connecting parts and towers, resulting in serious power grid safety accidents such as broken conductors, loose and falling bolts of poles and towers, and even tower collapse. The dancing disaster has become a major threat to the safe operation of the power grid in winter. Carrying out the prediction of the dancing of overhead lines is an important means to achieve the prevention and control of the dancing. Accurate dancing prediction can provide accurate information guidance for the power grid dispatching response and on-site emergency disposal, and reduce the impact of line dancing on the safe operation of the power grid.

[0003] The current dancing prediction technology mainly obtains monitoring data and uploads it to the server for Wudang prediction. It places high demands on the performance of the server and often easily causes server crashes. In addition, it cannot accurately and quickly monitor the dancing phenomenon for situation forecasts and dancing weather warnings. Summary of the invention

[0004] In view of this, the present invention provides a front-end monitoring method and system for ice dancing of overhead transmission lines, which can more accurately determine whether dancing occurs by considering the shape of ice while reducing the background computing pressure.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A front-end monitoring method for ice dancing of overhead power transmission lines, comprising:

[0007] Based on the ice-free image, the conductor diameter and the coordinates of the conductor center point are obtained;

[0008] Based on the periodic monitoring image, the diameter of the monitoring wire and the coordinates of the center point of the monitoring wire are obtained;

[0009] The diameter of the monitoring wire is judged, and when the diameter of the monitoring wire is less than the ice setting value, it is determined that no ice occurs; when the diameter of the monitoring wire is greater than or equal to the ice setting value, the ice thickness and ice shape are obtained based on the wire diameter, the coordinates of the center point of the wire, the diameter of the monitoring wire, and the coordinates of the center point of the monitoring wire;

[0010] The wire dancing frequency and the wire dancing amplitude are obtained, and the wire dancing frequency, the wire dancing amplitude, the ice coating thickness and the ice coating shape are sent to the supervision platform.

[0011] Preferably, obtaining the conductor diameter and the coordinates of the conductor center point based on the ice-free image includes:

[0012] Performing grayscale processing on the ice-free image to obtain an ice-free grayscale image;

[0013] De-noising the grayscale image without ice coverage to obtain a de-noised image without ice coverage;

[0014] Performing edge extraction on the de-icing denoised image to obtain a de-icing binary image; the binary image includes edge contour data of the de-icing conductor;

[0015] The conductor diameter and the coordinates of the conductor center point are obtained based on the edge profile data of the ice-free conductor and the calculated reference line.

[0016] Preferably, obtaining the monitoring wire diameter and the monitoring wire center point coordinates based on the periodic monitoring image includes:

[0017] Performing grayscale processing on the periodic monitoring image to obtain a monitoring grayscale image;

[0018] De-noising the monitoring grayscale image to obtain a monitoring denoised image;

[0019] Performing edge extraction on the monitoring denoised image to obtain a monitoring binary image; the binary image includes edge contour data of the monitoring conductor;

[0020] The diameter of the monitoring wire and the coordinates of the center point of the monitoring wire are obtained based on the edge profile data of the monitoring wire and the calculation reference line.

[0021] Preferably, the method further comprises:

[0022] The daily average temperature is judged, and when the daily average temperature is less than 0°, the ice thickness at the current moment is obtained based on the precipitation and wind speed at the current moment;

[0023] The time for sending the warning information and the ice cover warning time are obtained based on the ice cover growth thickness, and when the time for sending the warning information is reached, the ice cover warning time is sent to the supervision platform.

[0024] Preferably, the diameter of the monitoring wire is judged, when the diameter of the monitoring wire is less than the ice setting value, it is determined that no ice occurs, and when the diameter of the monitoring wire is greater than or equal to the ice setting value, the ice thickness and ice shape are obtained based on the wire diameter, the coordinates of the center point of the wire, the diameter of the monitoring wire and the coordinates of the center point of the monitoring wire, including:

[0025] The diameter of the monitoring wire is judged, and when the diameter of the monitoring wire is less than the ice covering setting value, it is determined that no ice covering occurs;

[0026] When the diameter of the monitoring wire is greater than or equal to the ice coating setting value, the ice coating thickness is obtained based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire;

[0027] When the diameter of the monitoring wire is greater than or equal to the ice coating set value, the ice coating shape is obtained based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire.

[0028] The present invention also provides an overhead power transmission line ice dancing front-end monitoring system, comprising:

[0029] The ice-free conductor module obtains the conductor diameter and the coordinates of the conductor center point based on the ice-free image;

[0030] A monitoring wire module obtains the monitoring wire diameter and the coordinates of the monitoring wire center point based on the periodic monitoring image;

[0031] A judgment module, which judges the diameter of the monitoring wire, and when the diameter of the monitoring wire is less than the ice setting value, determines that no ice occurs; when the diameter of the monitoring wire is greater than or equal to the ice setting value, obtains ice thickness and ice shape based on the wire diameter, the coordinates of the center point of the wire, the diameter of the monitoring wire, and the coordinates of the center point of the monitoring wire;

[0032] The data acquisition and transmission module acquires the wire dancing frequency and the wire dancing amplitude, and transmits the wire dancing frequency, the wire dancing amplitude, the ice coating thickness and the ice coating shape to the supervision platform.

[0033] Preferably, the ice-free conductor module comprises:

[0034] An ice-free grayscale unit performs grayscale processing on the ice-free image to obtain an ice-free grayscale image;

[0035] An ice-free denoising unit is used to denoise the ice-free grayscale image to obtain an ice-free denoised image;

[0036] An ice-free edge extraction unit is used to extract edges of the ice-free denoised image to obtain an ice-free binary image; the binary image includes edge contour data of the ice-free conductor;

[0037] The ice-free conductor unit obtains the conductor diameter and the coordinates of the conductor center point based on the edge profile data of the ice-free conductor and the calculation reference line.

[0038] Preferably, the monitoring wire module comprises:

[0039] A monitoring grayscale unit performs grayscale processing on the periodic monitoring image to obtain a monitoring grayscale image;

[0040] A monitoring denoising unit denoises the monitoring grayscale image to obtain a monitoring denoised image;

[0041] A monitoring edge extraction unit is used to extract edges from the monitoring denoised image to obtain a monitoring binary image; the binary image includes edge contour data of the monitoring conductor;

[0042] The monitoring wire unit obtains the monitoring wire diameter and the monitoring wire center point coordinates based on the edge profile data of the monitoring wire and the calculation reference line.

[0043] Preferably, the system further comprises:

[0044] The temperature module determines the daily average temperature. When the daily average temperature is less than 0°, the ice thickness at the current moment is obtained based on the precipitation and wind speed at the current moment.

[0045] The early warning module obtains the time for sending the early warning information and the ice warning time based on the ice growth thickness, and sends the ice warning time to the supervision platform when the time for sending the early warning information is reached.

[0046] Preferably, the judging module comprises:

[0047] A judgment unit, for judging the diameter of the monitoring wire, and determining that no icing occurs when the diameter of the monitoring wire is less than an icing setting value;

[0048] A thickness unit, when the diameter of the monitoring wire is greater than or equal to the ice coating set value, obtains the ice coating thickness based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire;

[0049] A shape unit, when the diameter of the monitoring wire is greater than or equal to the ice coating set value, obtains the ice coating shape based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire.

[0050] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0051] The present invention relates to a front-end monitoring method and system for ice dancing of overhead power transmission lines. First, the conductor diameter and the coordinates of the conductor center point are obtained based on an image without ice coating; and the monitoring conductor diameter and the coordinates of the monitoring conductor center point are obtained based on a periodic monitoring image; then the diameter of the monitoring conductor is judged, and when the diameter of the monitoring conductor is less than an ice coating set value, it is determined that no ice coating occurs, and when the diameter of the monitoring conductor is greater than or equal to the ice coating set value, the ice coating thickness and ice coating shape are obtained based on the conductor diameter, the coordinates of the conductor center point, the monitoring conductor diameter and the coordinates of the monitoring conductor center point; finally, the conductor dancing frequency and the conductor dancing amplitude are obtained, and the conductor dancing frequency, the conductor dancing amplitude, the ice coating thickness and the ice coating shape are sent to a supervision platform. The present invention can greatly reduce the performance requirements of the server, and at the same time provide a good foundation for the server to accurately obtain dancing. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0053] Figure 1 This is a flow chart of the front-end monitoring method for ice dancing of overhead power transmission lines of the present invention;

[0054] Figure 2 This is a structural diagram of the front-end monitoring system for ice dancing on overhead power transmission lines of the present invention.

[0055] Explanation of symbols: 1-ice-free conductor module, 2-monitoring conductor module, 3-judgment module, 4-data acquisition and transmission module, 5-temperature module, 6-early warning module. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] The object of the present invention is to provide a front-end monitoring method and system for ice dancing of overhead transmission lines, which can more accurately determine whether dancing occurs by considering the shape of ice while reducing the background calculation pressure.

[0058] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] Figure 1 The flowchart of the front-end monitoring method for ice dancing of overhead power transmission lines of the present invention is shown in the figure. As shown in the figure, the present invention provides a front-end monitoring method for ice dancing of overhead power transmission lines, comprising:

[0060] Step S1, obtaining the conductor diameter and the coordinates of the conductor center point based on the ice-free image.

[0061] Specifically, the step S1 includes:

[0062] Step S11, graying the ice-free image to obtain an ice-free graying image.

[0063] Step S12, denoising the ice-free grayscale image to obtain an ice-free denoised image.

[0064] Step S13, performing edge extraction on the ice-free denoised image based on a Canny operator to obtain an ice-free binary image; the binary image includes edge contour data of the ice-free conductor.

[0065] Step S14, obtaining the conductor diameter and the coordinates of the conductor center point based on the edge contour data of the ice-free conductor and a calculation reference line, wherein the calculation reference line is located at a quarter of the height of the lower half of the image.

[0066] In this embodiment, 10 images without ice are selected respectively for solving to obtain 10 groups of data, and then the average value is calculated to obtain the wire diameter and the coordinates of the center point of the wire.

[0067] Step S2, obtaining the monitoring wire diameter and the monitoring wire center point coordinates based on the periodic monitoring image.

[0068] Furthermore, the step S2 comprises:

[0069] Step S21, graying the periodic monitoring image to obtain a monitoring grayed image.

[0070] Step S22, denoising the monitoring grayscale image to obtain a monitoring denoised image.

[0071] Step S23, performing edge extraction on the monitoring denoised image based on a canny operator to obtain a monitoring binary image; the binary image includes edge contour data of the monitoring wire.

[0072] Step S24, obtaining the diameter of the monitoring wire and the coordinates of the center point of the monitoring wire based on the edge contour data of the monitoring wire and the calculation reference line.

[0073] Step S3, judging the diameter of the monitoring wire. When the diameter of the monitoring wire is less than the ice coating setting value, determining that no ice coating has occurred. When the diameter of the monitoring wire is greater than or equal to the ice coating setting value, obtaining the ice coating thickness and ice coating shape based on the wire diameter, the coordinates of the center point of the wire, the diameter of the monitoring wire and the coordinates of the center point of the monitoring wire.

[0074] Preferably, the step S3 comprises:

[0075] Step S31, determining the diameter of the monitoring wire, when the diameter of the monitoring wire is less than the ice coating set value, determining that no ice coating occurs.

[0076] Step S32: when the diameter of the monitoring wire is greater than or equal to the ice coating set value, the ice coating thickness is obtained based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire. The calculation formula is:

[0077]

[0078] Where: R is the ice thickness, di is the diameter of the monitoring wire, d is the wire diameter, and D is the actual factory diameter of the wire.

[0079] Step S33, when the diameter of the monitoring wire is greater than or equal to the ice coating set value, the ice coating shape is obtained based on the center coordinates of the wire and the center coordinates of the monitoring wire, and the period of obtaining the periodic monitoring image is changed from 1 hour to 10 minutes.

[0080] When the length of the coordinates of the center point of the conductor and the coordinates of the center point of the monitoring conductor is greater than one-fourth of the diameter of the conductor, the ice-coated shape is determined to be an eccentric shape; when the length of the coordinates of the center point of the conductor and the coordinates of the center point of the monitoring conductor is less than or equal to one-fourth of the diameter of the conductor, the ice-coated shape is determined to be a circle.

[0081] Step S4, judging the daily average temperature, when the daily average temperature is less than 0°, based on the precipitation and wind speed at the current moment, the ice thickness at the current moment is obtained. The calculation formula is:

[0082]

[0083] Where: ΔR i is the ice growth thickness at time i, P i is the precipitation at time i, U i is the wind speed at time i.

[0084] Step S5, based on the ice growth thickness, obtain the time for sending the warning information and the ice warning time, and when the time for sending the warning information is reached, send the ice warning time to the supervision platform. The calculation formula is:

[0085]

[0086]

[0087] Where: D max is the maximum conductor ice thickness.

[0088] Step S6, obtaining the wire dancing frequency and the wire dancing amplitude, and sending the wire dancing frequency, the wire dancing amplitude, the ice coating thickness and the ice coating shape to the monitoring platform.

[0089] Figure 2 As shown in the figure, the present invention provides a front-end monitoring system for ice dancing of overhead power transmission lines, including: an ice-free conductor module 1, a monitoring conductor module 2, a judgment module 3 and a data acquisition and transmission module 4.

[0090] The ice-free conductor module 1 obtains the conductor diameter and the coordinates of the conductor center point based on the ice-free image.

[0091] The monitoring wire module 2 obtains the monitoring wire diameter and the monitoring wire center point coordinates based on the periodic monitoring image.

[0092] The judgment module 3 judges the diameter of the monitoring wire. When the diameter of the monitoring wire is less than the ice coating setting value, it is determined that no ice coating has occurred. When the diameter of the monitoring wire is greater than or equal to the ice coating setting value, the ice coating thickness and ice coating shape are obtained based on the wire diameter, the coordinates of the center point of the wire, the diameter of the monitoring wire and the coordinates of the center point of the monitoring wire.

[0093] The data acquisition and transmission module 4 acquires the wire dancing frequency and the wire dancing amplitude, and transmits the wire dancing frequency, the wire dancing amplitude, the ice coating thickness and the ice coating shape to the monitoring platform.

[0094] When the supervision platform obtains that the wire may be dancing based on the wire dancing frequency, the wire dancing amplitude, the ice thickness and the ice shape, the supervision platform sends a video acquisition signal to the wire monitoring module 2, and the wire monitoring module 2 records the wire monitoring video and sends it to the supervision platform, so that the staff can accurately determine whether the wire is dancing according to the wire monitoring video.

[0095] As an optional implementation, the ice-free wire module 1 of the present invention includes: an ice-free graying unit, an ice-free desiccation unit, an ice-free edge extraction unit and an ice-free wire unit.

[0096] The ice-free grayscale unit performs grayscale processing on the ice-free image to obtain an ice-free grayscale image.

[0097] The de-ice denoising unit denoises the de-ice grayscale image to obtain a de-ice denoised image.

[0098] The ice-free edge extraction unit performs edge extraction on the ice-free denoised image to obtain an ice-free binary image; the binary image includes edge contour data of the ice-free conductor.

[0099] The ice-free conductor unit obtains the conductor diameter and the coordinates of the conductor center point based on the edge profile data of the ice-free conductor and a calculated reference line.

[0100] As an optional implementation, the monitoring wire module 2 of the present invention includes: a monitoring gray-scaling unit, a monitoring denoising unit, a monitoring edge extraction unit and a monitoring wire unit.

[0101] The monitoring gray-scale unit performs gray-scale processing on the periodic monitoring image to obtain a monitoring gray-scale image.

[0102] The monitoring denoising unit denoises the monitoring grayscale image to obtain a monitoring denoised image.

[0103] The monitoring edge extraction unit performs edge extraction on the monitoring denoised image to obtain a monitoring binary image; the binary image includes edge contour data of the monitoring conductor.

[0104] The monitoring wire unit obtains the monitoring wire diameter and the coordinates of the monitoring wire center point based on the edge profile data of the monitoring wire and the calculation reference line.

[0105] As an optional implementation, the system of the present invention further includes: a temperature module 5 and an early warning module 6.

[0106] The temperature module 5 determines the daily average temperature, and when the daily average temperature is less than 0°, the ice growth thickness at the current moment is obtained based on the precipitation and wind speed at the current moment.

[0107] The warning module 6 obtains the warning information sending time and the ice warning time based on the ice growth thickness, and sends the ice warning time to the supervision platform when the warning information sending time is reached.

[0108] As an optional implementation, the judgment module 3 of the present invention includes: a judgment unit, a thickness unit and a shape unit.

[0109] The judgment unit judges the diameter of the monitoring wire, and when the diameter of the monitoring wire is less than the ice coating setting value, it is determined that no ice coating occurs.

[0110] When the diameter of the monitoring wire is greater than or equal to the ice coating setting value, the thickness unit obtains the ice coating thickness based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire.

[0111] When the diameter of the monitoring wire is greater than or equal to the ice coating setting value, the shape unit obtains the ice coating shape based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire.

[0112] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0113] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A front-end monitoring method for ice dancing on overhead transmission lines, It is characterized in that include: Based on the ice-free image, the conductor diameter and the coordinates of the conductor center point are obtained; Based on the periodic monitoring image, the diameter of the monitoring wire and the coordinates of the center point of the monitoring wire are obtained; The diameter of the monitoring wire is judged, and when the diameter of the monitoring wire is less than the ice setting value, it is determined that no ice occurs; when the diameter of the monitoring wire is greater than or equal to the ice setting value, the ice thickness and ice shape are obtained based on the wire diameter, the coordinates of the center point of the wire, the diameter of the monitoring wire, and the coordinates of the center point of the monitoring wire; The wire dancing frequency and the wire dancing amplitude are obtained, and the wire dancing frequency, the wire dancing amplitude, the ice coating thickness and the ice coating shape are sent to the supervision platform.

2. The front-end monitoring method for ice dancing of overhead power transmission lines according to claim 1, It is characterized in that The method of obtaining the conductor diameter and the coordinates of the conductor center point based on the ice-free image includes: Performing grayscale processing on the ice-free image to obtain an ice-free grayscale image; De-noising the grayscale image without ice coverage to obtain a de-noised image without ice coverage; Performing edge extraction on the de-icing denoised image to obtain a de-icing binary image; the binary image includes edge contour data of the de-icing conductor; The conductor diameter and the coordinates of the conductor center point are obtained based on the edge profile data of the ice-free conductor and the calculated reference line.

3. The front-end monitoring method for ice dancing of overhead power transmission lines according to claim 1, It is characterized in that The method of obtaining the monitoring wire diameter and the monitoring wire center point coordinates based on the periodic monitoring image includes: Performing grayscale processing on the periodic monitoring image to obtain a monitoring grayscale image; De-noising the monitoring grayscale image to obtain a monitoring denoised image; Performing edge extraction on the monitoring denoised image to obtain a monitoring binary image; The binary image includes edge profile data of the monitoring wire; The diameter of the monitoring wire and the coordinates of the center point of the monitoring wire are obtained based on the edge profile data of the monitoring wire and the calculation reference line.

4. The front-end monitoring method for ice dancing of overhead power transmission lines according to claim 1, It is characterized in that The method further comprises: The daily average temperature is judged, and when the daily average temperature is less than 0°, the ice thickness at the current moment is obtained based on the precipitation and wind speed at the current moment; The time for sending the warning information and the ice cover warning time are obtained based on the ice cover growth thickness, and when the time for sending the warning information is reached, the ice cover warning time is sent to the supervision platform.

5. The front-end monitoring method for ice dancing of overhead power transmission lines according to claim 1, It is characterized in that The method of judging the diameter of the monitoring wire, when the diameter of the monitoring wire is less than the ice setting value, determining that no ice occurs, and when the diameter of the monitoring wire is greater than or equal to the ice setting value, obtaining the ice thickness and ice shape based on the wire diameter, the coordinates of the center point of the wire, the diameter of the monitoring wire and the coordinates of the center point of the monitoring wire, includes: The diameter of the monitoring wire is judged, and when the diameter of the monitoring wire is less than the ice covering setting value, it is determined that no ice covering occurs; When the diameter of the monitoring wire is greater than or equal to the ice coating setting value, the ice coating thickness is obtained based on the diameter of the monitoring wire and the wire diameter; When the diameter of the monitoring wire is greater than or equal to the ice coating set value, the ice coating shape is obtained based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire.

6. A front-end monitoring system for ice dancing on overhead transmission lines. It is characterized in that include: The ice-free conductor module obtains the conductor diameter and the coordinates of the conductor center point based on the ice-free image; A monitoring wire module obtains the monitoring wire diameter and the coordinates of the monitoring wire center point based on the periodic monitoring image; A judgment module, which judges the diameter of the monitoring wire, and when the diameter of the monitoring wire is less than the ice setting value, determines that no ice occurs; when the diameter of the monitoring wire is greater than or equal to the ice setting value, obtains ice thickness and ice shape based on the wire diameter, the coordinates of the center point of the wire, the diameter of the monitoring wire, and the coordinates of the center point of the monitoring wire; The data acquisition and transmission module acquires the wire dancing frequency and the wire dancing amplitude, and transmits the wire dancing frequency, the wire dancing amplitude, the ice coating thickness and the ice coating shape to the supervision platform.

7. The overhead power transmission line ice dancing front-end monitoring system according to claim 6, It is characterized in that The ice-free conductor module comprises: An ice-free grayscale unit performs grayscale processing on the ice-free image to obtain an ice-free grayscale image; An ice-free denoising unit is used to denoise the ice-free grayscale image to obtain an ice-free denoised image; An ice-free edge extraction unit is used to extract edges of the ice-free denoised image to obtain an ice-free binary image; the binary image includes edge contour data of the ice-free conductor; The ice-free conductor unit obtains the conductor diameter and the coordinates of the conductor center point based on the edge profile data of the ice-free conductor and the calculation reference line.

8. The front-end monitoring system for ice dancing of overhead power transmission lines according to claim 6, It is characterized in that The monitoring wire module comprises: A monitoring grayscale unit performs grayscale processing on the periodic monitoring image to obtain a monitoring grayscale image; A monitoring denoising unit denoises the monitoring grayscale image to obtain a monitoring denoised image; A monitoring edge extraction unit is used to extract edges from the monitoring denoised image to obtain a monitoring binary image; the binary image includes edge contour data of the monitoring conductor; The monitoring wire unit obtains the monitoring wire diameter and the monitoring wire center point coordinates based on the edge profile data of the monitoring wire and the calculation reference line.

9. The front-end monitoring system for ice dancing of overhead power transmission lines according to claim 6, It is characterized in that The system further comprises: The temperature module determines the daily average temperature. When the daily average temperature is less than 0°, the ice thickness at the current moment is obtained based on the precipitation and wind speed at the current moment. The early warning module obtains the time for sending the early warning information and the ice warning time based on the ice growth thickness, and sends the ice warning time to the supervision platform when the time for sending the early warning information is reached.

10. The front-end monitoring system for ice dancing of overhead power transmission lines according to claim 6, It is characterized in that The judging module comprises: A judgment unit, for judging the diameter of the monitoring wire, and determining that no icing occurs when the diameter of the monitoring wire is less than an icing setting value; A thickness unit, when the diameter of the monitoring wire is greater than or equal to the ice coating setting value, obtains the ice coating thickness based on the diameter of the monitoring wire and the wire diameter; A shape unit, when the diameter of the monitoring wire is greater than or equal to the ice coating set value, obtains the ice coating shape based on the coordinates of the center point of the wire and the coordinates of the center point of the monitoring wire.

Images