Accumulated snow disaster monitoring method and system based on power transmission line

Abstract

The invention discloses an accumulated snow disaster monitoring method and system based on a power transmission line, and relates to the technical field of power transmission line accumulated snow disaster monitoring, and the method comprises a power transmission line accumulated snow monitoring module, a power transmission line monitoring analysis module and a power transmission line monitoring management module. Further, the snow accumulation state corresponding to the power transmission line is obtained through judgment, snow accumulation monitoring equipment corresponding to the power transmission line and all deployment positions of the snow accumulation monitoring equipment are screened out, and the snow accumulation state is determined based on monitoring data transmitted by the snow accumulation monitoring equipment corresponding to the power transmission line in real time; and analyzing to obtain the removal equipment corresponding to the snow accumulation state of the current power transmission line and the placement number of the removal equipment corresponding to the power transmission line, so as to efficiently remove the snow corresponding to the power transmission line and reduce the damage of the snow accumulation disaster to the power transmission line. And therefore, the accuracy and effectiveness of accumulated snow monitoring corresponding to the power transmission line can be further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of snow disaster monitoring for transmission lines, and particularly to a method and system for snow disaster monitoring based on transmission lines. Background Art

[0002] With the arrival of winter, transmission lines often face the challenge of snow accumulation brought by severe cold. Since snow accumulation can pose certain potential safety hazards and operating burdens to the operation of transmission lines, it is necessary to conduct corresponding snow monitoring on transmission lines to ensure the safety status of transmission lines in severe cold weather. Through preliminary monitoring of the snow accumulation on the corresponding transmission lines, the current status of the snow accumulation on the transmission lines can be understood, and then targeted removal can be carried out according to the current status of the snow accumulation, so as to ensure the application safety of the transmission lines.

[0003] An existing technology, such as a method and system for snow disaster monitoring of a transmission line corridor based on satellite remote sensing disclosed in the invention patent application with publication number CN108510097B, relates to the technical field of power systems. The method: obtaining surface data of any transmission line corridor through a remote sensing satellite, and performing preprocessing and calibration; establishing an inversion model for the snow depth of the snow accumulation in the transmission line corridor; based on the measured data of the snow depth of the snow accumulation in the transmission line corridor, substituting the address location data of the target area into the inversion model for the snow depth of the snow accumulation, and outputting the inversion parameter value of the snow depth of the target area to complete the monitoring of the snow disaster in the transmission line corridor. The present invention uses an improved bee colony algorithm to optimize the thresholds and weights of the neural network to improve the accuracy of the inversion model.

[0004] For the above solution, there are the following technical problems: The above invention mainly uses an improved bee colony algorithm to optimize the thresholds and weights of the neural network, thereby improving the inversion model and completing the monitoring of the snow disaster in the transmission line corridor. However, it does not judge from the snow accumulation state corresponding to the transmission line, so it is impossible to understand the current corresponding status of the transmission line, nor can it replace the corresponding monitoring sensors according to the current snow accumulation state of the transmission line, so that the transmission line can obtain higher-precision snow monitoring. It is impossible to effectively monitor the snow accumulation corresponding to the transmission line, which will lead to the lag and difference of the snow monitoring data of the transmission line. At the same time, it is also impossible to screen out the corresponding removal equipment according to the snow accumulation state corresponding to the transmission line, and it is impossible to efficiently remove the snow accumulation corresponding to the transmission line, making it difficult to ensure the application safety of the transmission line in extremely cold conditions. Summary of the Invention

[0005] Aiming at the above existing technical deficiencies, the purpose of the present invention is to provide a method and system for snow disaster monitoring based on transmission lines.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a snow disaster monitoring method based on a transmission line, including: Step 1, Transmission line snow accumulation monitoring: By conducting preliminary snow accumulation monitoring on the transmission line, the snow accumulation state corresponding to the transmission line is judged.

[0007] Step 2, Transmission line monitoring and analysis: Based on the snow accumulation state corresponding to the transmission line, the snow accumulation monitoring equipment corresponding to the transmission line is screened, and the deployment positions of the snow accumulation monitoring equipment corresponding to the transmission line are analyzed.

[0008] Step 3, Transmission line monitoring and management: Through the monitoring data transmitted in real time by the snow accumulation monitoring equipment corresponding to the transmission line, the removal equipment for the current snow accumulation state corresponding to the transmission line is analyzed, and the placement quantity of the removal equipment corresponding to the transmission line is analyzed.

[0009] In the second aspect, the present invention provides a snow disaster monitoring system based on a transmission line, including: A transmission line snow accumulation monitoring module, which is used to conduct preliminary snow accumulation monitoring on the transmission line, and then judge the snow accumulation state corresponding to the transmission line.

[0010] A transmission line monitoring and analysis module, which is used to screen the snow accumulation monitoring equipment corresponding to the transmission line based on the snow accumulation state corresponding to the transmission line, and analyze the deployment positions of the snow accumulation monitoring equipment corresponding to the transmission line.

[0011] A transmission line monitoring and management module, which is used to analyze the removal equipment for the current snow accumulation state corresponding to the transmission line through the monitoring data transmitted in real time by the snow accumulation monitoring equipment corresponding to the transmission line, and analyze the placement quantity of the removal equipment corresponding to the transmission line.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention provides a snow disaster monitoring method and system based on a transmission line. By conducting preliminary snow accumulation monitoring on the transmission line, the snow accumulation state corresponding to the transmission line is judged, the snow accumulation monitoring equipment corresponding to the transmission line is screened, and the deployment positions of the snow accumulation monitoring equipment are determined. At the same time, based on the monitoring data transmitted in real time by the snow accumulation monitoring equipment corresponding to the transmission line, the removal equipment for the current snow accumulation state corresponding to the transmission line and the placement quantity of the removal equipment corresponding to the transmission line are analyzed, so as to efficiently remove the snow accumulation corresponding to the transmission line, achieve the maximum snow removal of the transmission line, reduce the risk of snow disaster corresponding to the transmission line, reduce the damage of snow disaster to the transmission line, and at the same time, based on the replacement of the monitoring instrument corresponding to the snow accumulation state of the transmission line, further ensure the accuracy and effectiveness of the snow accumulation monitoring of the transmission line, reduce the probability of false detection of snow disaster on the transmission line, and further improve the monitoring efficiency of snow disaster corresponding to the transmission line.

[0013] 2. Through preliminary snow accumulation monitoring of the transmission line, the snow accumulation state corresponding to the transmission line is judged, the current situation of snow accumulation corresponding to the transmission line is efficiently understood, and detailed monitoring of the snow accumulation disaster corresponding to the transmission line is realized.

[0014] 3. Based on the snow accumulation state corresponding to the transmission line, the snow accumulation monitoring equipment corresponding to the transmission line is screened, and the deployment positions of the snow accumulation monitoring equipment corresponding to the transmission line are analyzed, so as to realize effective monitoring of different snow accumulation current situations corresponding to the transmission line, further ensure the accuracy of snow accumulation monitoring corresponding to the transmission line, and thus provide strong data support for the snow removal decision-making.

[0015] 4. Through the monitoring data transmitted in real time by the snow accumulation monitoring equipment corresponding to the transmission line, the snow removal equipment corresponding to the current snow accumulation state of the transmission line is analyzed, and the placement quantity of the snow removal equipment corresponding to the transmission line is analyzed, so as to realize effective removal of the snow accumulation corresponding to the transmission line, ensure the high efficiency of snow removal from the transmission line, maximize the snow removal from the transmission line, and improve the snow removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic flowchart of the implementation steps of the method of the present invention.

[0018] Figure 2 It is a schematic connection diagram of the system structure of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] Please refer to Figure 1 As shown, a method for monitoring snow accumulation disasters based on transmission lines includes: Step 1, snow accumulation monitoring of transmission lines: Through preliminary snow accumulation monitoring of the transmission line, the snow accumulation state corresponding to the transmission line is judged.

[0021] It should be noted that each sensor includes an ultrasonic snow depth sensor, a gamma-ray snow density meter, a laser force analyzer, etc.; the snow accumulation data includes snow thickness, snow density, snow particle size, etc.

[0022] In a specific embodiment of the present invention, the preliminary snow accumulation monitoring of the transmission line is carried out as follows: Based on the preliminary snow accumulation data collected by each sensor on the transmission line, when the ultrasonic snow depth sensor receives the returned ultrasonic pulse, the snow thickness of the snow accumulation corresponding to the transmission line is collected. The corresponding ray of the gamma-ray snow density meter is used to scan the snow accumulation layer corresponding to the transmission line to obtain the corresponding snow density. At the same time, the laser beam emitted by the laser force analyzer is used to obtain the snow particle size of the snow accumulation corresponding to the transmission line, so as to perform the preliminary snow accumulation monitoring corresponding to the transmission line.

[0023] In a specific embodiment of the present invention, the determination of the snow accumulation state corresponding to the transmission line is carried out as follows: The preliminary snow accumulation data collected corresponding to the transmission line is imported into the snow accumulation state analysis model, and the state result of the preliminary snow accumulation monitoring corresponding to the transmission line is analyzed. If the state value of the preliminary snow accumulation monitoring corresponding to the transmission line is 1, it is determined that the transmission line has a first-level snow cover and is in a general overpressure state. If the state result of the preliminary snow accumulation monitoring corresponding to the transmission line is 0, it is determined that the transmission line has a second-level ice and snow cover and is in a serious overpressure state, and the sensor needs to be replaced to perform further snow accumulation monitoring, so as to determine the snow accumulation state corresponding to the transmission line.

[0024] It should be noted that the first-level snow cover means that the transmission line is only covered with snow; the second-level ice and snow cover means that there is not only snow but also ice on the transmission line, and the included forms are snow-covered ice or ice-covered snow.

[0025] In a specific embodiment of the present invention, the analysis of the state result of the preliminary snow accumulation monitoring corresponding to the transmission line is carried out as follows: Through the snow accumulation state analysis model:

[0026] where μ is the state value of the preliminary snow accumulation monitoring corresponding to the transmission line, y′ is the set reference snow thickness, p′ is the set reference snow density, k′ is the set reference snow particle size, y is the snow thickness of the preliminary snow accumulation monitoring corresponding to the transmission line, p is the snow density of the preliminary snow accumulation monitoring corresponding to the transmission line, k is the snow particle size of the preliminary snow accumulation monitoring corresponding to the transmission line, and r is the set reference snow accumulation state value.

[0027] It should be noted that the reference values corresponding to the performance under the snow accumulation state are set by professional transmission line staff, including the reference snow thickness, reference snow density, reference snow particle size, and reference snow accumulation state value.

[0028] Through preliminary snow monitoring of the transmission line, the snow accumulation state corresponding to the transmission line is judged, the current snow accumulation situation corresponding to the transmission line is efficiently understood, and the detailed monitoring of the snow accumulation disaster corresponding to the transmission line is realized.

[0029] Step 2: Transmission line monitoring and analysis: Based on the snow accumulation state corresponding to the transmission line, the snow accumulation monitoring devices corresponding to the transmission line are screened, and the deployment positions of the snow accumulation monitoring devices corresponding to the transmission line are analyzed.

[0030] It should be noted that by conducting environmental tests on each device applied to the snow accumulation monitoring of the transmission line, setting up each environmental test group, and testing the accuracy values monitored by each device in each environmental test group, when the accuracy value of a certain device in a certain environmental test group shows a decrease in the monitored value, the current environment is recorded, and the cold tolerance state value of the accuracy of the device in this environment is obtained, so as to obtain the cold tolerance state values of each device.

[0031] In a specific embodiment of the present invention, the process of screening the snow accumulation monitoring devices corresponding to the transmission line is as follows: Compare the cold tolerance state values of each device for the preliminary snow accumulation monitoring corresponding to the current transmission line with the state value of the preliminary snow accumulation monitoring corresponding to the transmission line. If the cold tolerance state value of a certain device for the preliminary snow accumulation monitoring corresponding to the current transmission line is less than the state value of the preliminary snow accumulation monitoring corresponding to the transmission line, it is recorded as a device to be replaced, and thus each device to be replaced is obtained.

[0032] Compare the cold tolerance state values of each standby device stored in the database with the cold tolerance state values of each device to be replaced corresponding to the transmission line. If the cold tolerance state value of a certain standby device stored in the database is greater than the cold tolerance state value of a certain device to be replaced corresponding to the transmission line, this standby device is recorded as the replacement monitoring device for continuously monitoring the snow accumulation corresponding to the transmission line, and thus the snow accumulation monitoring devices corresponding to the transmission line are screened.

[0033] It should be noted that if the accuracy value of the initially used ultrasonic snow depth sensor device becomes low under the secondary ice and snow coverage corresponding to the current transmission line, it is replaced with a laser snow depth meter; if the accuracy value of the initially used gamma-ray snow density device becomes low under the secondary ice and snow coverage corresponding to the current transmission line, it is replaced with a radioactive isotope snow gauge; if the initially used device is a laser force analyzer device and its accuracy value becomes low under the secondary ice and snow coverage corresponding to the current transmission line, it is replaced with a dynamic particle image analyzer, and so on.

[0034] In a specific embodiment of the present invention, the analysis of each deployment position of the snow accumulation monitoring device corresponding to the transmission line is as follows: Based on the overall snow accumulation distribution map of the transmission line obtained by using the UAV acquisition technology, the areas with thick snow coverage corresponding to the transmission line are extracted, and combined with the monitoring data transmitted back in real time by the sensors on the transmission line, the areas with serious snow coverage corresponding to the transmission line are confirmed and recorded as each backlog area. Then, the areas of each important position corresponding to the transmission line are obtained from the database, and the backlog areas corresponding to the transmission line are compared with the areas of each important position corresponding to the transmission line in the database. If a certain backlog area corresponding to the transmission line is the same as the area of a certain important position corresponding to the transmission line in the database, then this important position is used as the deployment position of the snow accumulation monitoring device. By analogy, each deployment position of the snow accumulation monitoring device corresponding to the transmission line is obtained.

[0035] It should be noted that the monitoring data transmitted back in real time by the sensors on the transmission line is compared with the historical monitoring data corresponding to the historical backlog areas of the transmission line stored in the database. If a certain monitoring data transmitted back in real time by the sensors on the transmission line is greater than or equal to the historical monitoring data corresponding to the historical backlog areas of the transmission line stored in the database, then the position area corresponding to this monitoring data is recorded as the area with serious snow coverage, and thus each area with serious snow coverage is obtained.

[0036] Based on the snow accumulation state corresponding to the transmission line, the snow accumulation monitoring devices corresponding to the transmission line are screened, and each deployment position of the snow accumulation monitoring device corresponding to the transmission line is analyzed, so as to effectively monitor the different snow accumulation statuses corresponding to the transmission line, further ensure the accuracy of snow accumulation monitoring corresponding to the transmission line, and thus provide strong data support for the snow removal decision-making.

[0037] Step 3: Transmission line monitoring and management: Through the monitoring data transmitted in real time by the snow accumulation monitoring devices corresponding to the transmission line, the removal devices corresponding to the current snow accumulation state of the transmission line are analyzed, and the placement quantity of the removal devices corresponding to the transmission line is analyzed.

[0038] It should be noted that the start device time and the device end time of each marking device are obtained from the database, and the time difference between the start device time and the device end time is calculated to obtain the required deployment duration corresponding to the marking device; the devices equipped by each marking device during the device operation are obtained from the database, and the quantity statistics are carried out to obtain the number of auxiliary tools required for the deployment corresponding to each marking device; the initial snow accumulation amount and the remaining snow accumulation amount after snow removal of each marking device corresponding to snow removal are obtained from the database, and the remaining snow accumulation amount after snow removal is divided by the initial snow accumulation amount to obtain the remaining degree corresponding to each marking device; the snow removal amount and the snow removal duration of each marking device corresponding to snow removal stored in the database are obtained, and the snow removal amount is divided by the snow removal duration to obtain the removal efficiency corresponding to each marking device. The negative value removed is the additional damage value caused by each marking device during the snow removal of the corresponding transmission line. For example, the scratch damage generated by each marking device during the snow removal of the transmission line is an additional damage value obtained by comprehensively calculating the length and quantity of the scratches generated by each marking device during the snow removal of the transmission line.

[0039] In a specific embodiment of the present invention, the process of specifically analyzing the snow removal device corresponding to the current snow accumulation state of the transmission line is as follows: the historical snow accumulation monitoring data corresponding to each level of snow accumulation state stored in the database is obtained and compared with the monitoring data transmitted in real time by the snow accumulation monitoring device corresponding to the transmission line. If the monitoring data transmitted in real time by the snow accumulation monitoring device corresponding to the transmission line is the same as the historical snow accumulation monitoring data corresponding to a certain level of snow accumulation state stored in the database, the historical equipment used during the snow removal corresponding to this level of snow accumulation state is marked, and so on by analogy to obtain each marking device.

[0040] The removal information corresponding to each marking device is obtained, where the removal information includes deployment data and removal effect data. The deployment data includes the required deployment duration and the number of auxiliary tools required for deployment, and the removal effect data includes the removal residual degree, the removal efficiency, and the removal negative value.

[0041] In a specific embodiment of the present invention, the process of specifically analyzing the application comprehensive value of each marking device for snow removal of the transmission line is as follows: the deployment data and the removal effect data are extracted from the removal information corresponding to each marking device, and data processing is performed to obtain the deployment evaluation value and the removal effect evaluation value corresponding to each marking device, which are respectively denoted as β g and δ g , where g is the number of each marking device, g = 1, 2,..., n, and n is any integer greater than 2. The deployment evaluation value and the removal effect evaluation value corresponding to each marking device are imported into the snow removal device analysis model: where ω g$g$ is the comprehensive application value of the $g$-th marking device corresponding to snow removal on the transmission line, $\beta'$ is the set reference deployment evaluation value, $\delta'$ is the set reference removal effect evaluation value, $\vee$ represents "or", and $\wedge$ represents "and".

[0042] It should be noted that for data processing: based on the required duration for deployment and the number of auxiliary tools required for deployment corresponding to each marking device, and obtaining the preset reference required duration for deployment and the reference number of auxiliary tools required for deployment corresponding to each marking device, the difference in the required duration for deployment and the difference in the number of auxiliary tools required for deployment corresponding to each marking device are obtained, and they are respectively compared with the difference in the permitted required duration for deployment and the difference in the permitted number of auxiliary tools required for deployment when each marking device is applied in the database. If the difference in the required duration for deployment corresponding to a certain marking device is less than the difference in the permitted required duration for deployment or the difference in the number of auxiliary tools required for deployment is equal to the difference in the permitted number of auxiliary tools required for deployment, it will be recorded as $\psi$, otherwise it will be recorded as $\psi'$. In this way, the deployment evaluation value $\beta$ of each marking device is obtained. g ,$\beta$ g takes the value of $\psi$ or $\psi'$; based on the removal residue, removal efficiency, and removal negative value corresponding to each marking device, and obtaining the preset reference removal residue, reference removal efficiency, and reference removal negative value corresponding to each marking device, the difference in removal residue, the difference in removal efficiency, and the difference in removal negative value corresponding to each marking device are obtained, and they are respectively compared with the difference in the permitted removal residue, the difference in the permitted removal efficiency, and the difference in the permitted negative value when each marking device is applied in the database. If the difference in removal residue corresponding to a certain marking device is less than the difference in the permitted removal residue, the difference in removal efficiency is less than the difference in the permitted removal efficiency, or the difference in negative value is equal to the difference in the permitted negative value, it will be recorded as $\gamma$, otherwise it will be recorded as $\gamma'$. In this way, the removal effect evaluation value $\delta$ of each marking device is obtained. g ,$\delta$ g takes the value of $\gamma$ or $\gamma'$.

[0043] It should be noted that professional transmission line personnel set the preset reference required duration for deployment and the reference number of auxiliary tools required for deployment corresponding to each marking device; set the preset reference removal residue, reference removal efficiency, and reference removal negative value corresponding to each marking device.

[0044] It should be noted that professional transmission line staff set the reference deployment evaluation value and the reference removal effect evaluation value; the deployment evaluation value indicates the deployment difficulty of the removal device on the transmission line, facilitating an understanding of the ease of device operation and placement, and the removal effect is the removal effect of the removal device corresponding to snow removal on the transmission line, facilitating an understanding of the removal force of each removal device.

[0045] When the comprehensive application value of a certain marking device corresponding to snow removal on a transmission line is -1, then this marking device is not used as the application removal device for the snow accumulation state of the transmission line. When the comprehensive application value of a certain marking device corresponding to snow removal on a transmission line is 1 or 0, then this marking device is used as the removal device for the snow accumulation state of the transmission line, denoted as the removal device. By analogy, each removal device can be obtained.

[0046] Arrange the comprehensive application values corresponding to each removal device in descending order, and use the removal device ranked first as the removal device for the current snow accumulation state of the transmission line.

[0047] In a specific embodiment of the present invention, the placement quantity of the removal device corresponding to the transmission line is analyzed as follows: Based on the real-time snow accumulation coverage data monitored by the snow accumulation monitoring device corresponding to the transmission line, and combined with the overall snow accumulation coverage image of the transmission line obtained by the sensor's implementation of shooting, the snow accumulation coverage thickness and the snow accumulation coverage length corresponding to the transmission line are respectively obtained, and the snow removal thickness when the removal device removes snow and the reachable distance for the removal device to move back and forth are obtained. Subtract the snow removal thickness when the removal device removes snow from the snow accumulation coverage thickness corresponding to the transmission line to obtain the number of operations required for the removal device to remove snow from the transmission line. Secondly, subtract the reachable distance for the removal device to move back and forth from the snow accumulation coverage length corresponding to the transmission line to obtain a result value, and increment the quantity based on this result value until the reachable distance incremented by the result value is greater than or equal to the snow accumulation coverage length corresponding to the transmission line, thereby obtaining the corresponding required quantity.

[0048] It should be noted that the total line length corresponding to the transmission line is obtained from the database, and the length of the transmission line corresponding to the non-snow-covered area is extracted from the overall snow accumulation coverage image of the transmission line. Subtract the length of the non-snow-covered area from the total line length to obtain the snow accumulation coverage length corresponding to the transmission line.

[0049] It should be noted that the removal device includes a snow removal insulating rod or an ice removal robot, etc.

[0050] Through the monitoring data transmitted in real time by the snow accumulation monitoring device corresponding to the transmission line, the removal device for the current snow accumulation state of the transmission line is analyzed, and the placement quantity of the removal device corresponding to the transmission line is analyzed, thereby effectively removing the snow accumulation on the transmission line, ensuring the high efficiency of snow removal on the transmission line, maximizing the snow removal on the transmission line, and improving the snow removal efficiency.

[0051] Please refer to Figure 2 As shown, a snow disaster monitoring system based on a transmission line includes a transmission line snow accumulation monitoring module, a transmission line monitoring and analysis module, a transmission line monitoring and management module, and a database.

[0052] The snow accumulation monitoring module of the transmission line is respectively connected to the transmission line monitoring and analysis module and the database. The transmission line monitoring and analysis module is respectively connected to the transmission line monitoring and management module and the database. The transmission line monitoring and management module is connected to the database.

[0053] The snow accumulation monitoring module of the transmission line is used to conduct preliminary snow accumulation monitoring on the transmission line, and then judge the corresponding snow accumulation state of the transmission line.

[0054] The transmission line monitoring and analysis module is used to screen the corresponding snow accumulation monitoring equipment of the transmission line based on the corresponding snow accumulation state of the transmission line, and analyze the deployment positions of the corresponding snow accumulation monitoring equipment of the transmission line.

[0055] The transmission line monitoring and management module is used to analyze the removal equipment corresponding to the current snow accumulation state of the transmission line and the placement quantity of the corresponding removal equipment of the transmission line through the monitoring data transmitted in real time by the corresponding snow accumulation monitoring equipment of the transmission line.

[0056] The database is used to store snow accumulation data, cold resistance state values, historical snow accumulation monitoring data, and removal information.

[0057] In the embodiment of the present invention, through preliminary snow accumulation monitoring on the transmission line, the corresponding snow accumulation state of the transmission line is judged, the corresponding snow accumulation monitoring equipment of the transmission line and the deployment positions of the snow accumulation monitoring equipment are screened out. At the same time, based on the monitoring data transmitted in real time by the corresponding snow accumulation monitoring equipment of the transmission line, the removal equipment corresponding to the current snow accumulation state of the transmission line and the placement quantity of the corresponding removal equipment of the transmission line are analyzed, so as to efficiently remove the snow accumulation corresponding to the transmission line, achieve the maximum snow removal of the transmission line, reduce the risk of snow accumulation disasters corresponding to the transmission line, reduce the damage of snow accumulation disasters to the transmission line. At the same time, based on the replacement of the monitoring instruments corresponding to the snow accumulation state of the transmission line, the accuracy and effectiveness of the snow accumulation monitoring corresponding to the transmission line are further guaranteed, the probability of misdetection of snow accumulation disasters corresponding to the transmission line is reduced, and the monitoring efficiency of snow accumulation disasters corresponding to the transmission line is further improved.

[0058] The above content is only an example and illustration of the concept of the present invention. Those skilled in the art of the present technology make various modifications or supplements or use similar methods to replace the specific embodiments described, as long as they do not deviate from the concept of the invention or exceed the scope defined by this specification, they should all belong to the protection scope of the present invention.

Claims

1. A snow disaster monitoring method based on power transmission lines, characterized in that: include: Step 1: Snow accumulation monitoring of power transmission lines: Preliminary snow accumulation monitoring of power transmission lines is performed to determine the snow accumulation status of the power transmission lines; Step 2: Transmission line monitoring and analysis: Based on the snow accumulation state corresponding to the transmission line, the snow accumulation monitoring equipment corresponding to the transmission line is screened and the deployment positions of the snow accumulation monitoring equipment corresponding to the transmission line are analyzed; Step 3: Transmission line monitoring and management: The monitoring data transmitted in real time by the snow monitoring equipment corresponding to the transmission line is analyzed to obtain the snow removal equipment corresponding to the current transmission line status, and the number of snow removal equipment placed corresponding to the transmission line is analyzed.

2. A method for monitoring snow disasters based on power transmission lines as claimed in claim 1, characterized in that: The preliminary snow monitoring of the transmission line is carried out, and the specific monitoring process is as follows: Based on the preliminary snow accumulation data collected by various sensors on the transmission line, when the ultrasonic snow depth sensor receives the returned ultrasonic pulse wave, the snow thickness of the snow corresponding to the transmission line is collected, and the corresponding rays of the gamma-ray snow density meter are used to scan the snow layer corresponding to the transmission line to obtain the corresponding snow density. At the same time, the laser beam emitted by the laser intensity analyzer is used to obtain the snow particle size of the snow corresponding to the transmission line, so as to perform preliminary snow accumulation monitoring corresponding to the transmission line.

3. A method for monitoring snow disasters based on power transmission lines as claimed in claim 2, characterized in that: The snow accumulation state corresponding to the transmission line is determined, and the specific determination process is as follows: The preliminary collected snow data corresponding to the transmission line is imported into the snow state analysis model, and the state result of the preliminary snow monitoring corresponding to the transmission line is analyzed to obtain. If the state value of the preliminary snow monitoring corresponding to the transmission line is 1, it is determined that the transmission line is covered with primary snow and is in a general pressure state. If the state result of the preliminary snow monitoring corresponding to the transmission line is 0, it is determined that the transmission line is covered with secondary snow and ice and is in a serious pressure state. In this case, the sensor needs to be replaced to perform further snow monitoring to determine the snow state corresponding to the transmission line.

4. A method for monitoring snow disasters based on power transmission lines as claimed in claim 3, characterized in that: The analysis obtains the status results of the transmission line corresponding to the preliminary snow monitoring. The specific analysis process is as follows: Analyze the model by snow status: Wherein μ is the state value of the transmission line corresponding to the preliminary snow monitoring, y′ is the set reference snow thickness, p′ is the set reference snow density, k′ is the set reference snow particle size, y is the snow thickness corresponding to the preliminary snow monitoring of the transmission line, p is the snow density corresponding to the preliminary snow monitoring of the transmission line, k is the snow particle size corresponding to the preliminary snow monitoring of the transmission line, and r is the set reference snow state value.

5. The method for monitoring snow disasters based on power transmission lines according to claim 1, characterized in that: The snow monitoring equipment corresponding to the transmission line is obtained by screening, and the specific screening process is as follows: Compare the cold resistance status value of each device corresponding to the preliminary snow monitoring of the current transmission line with the status value of the preliminary snow monitoring of the transmission line. If the cold resistance status value of a device corresponding to the preliminary snow monitoring of the current transmission line is less than the status value of the preliminary snow monitoring of the transmission line, it is recorded as replacement equipment, thereby obtaining each replacement equipment; The cold resistance status value of each spare device stored in the database is compared with the cold resistance status value of each replacement device corresponding to the transmission line. If the cold resistance status value of a spare device stored in the database is greater than the cold resistance status value of a replacement device corresponding to the transmission line, the spare device is recorded as a replacement monitoring device for continuously monitoring snow accumulation corresponding to the transmission line, so as to screen out the snow accumulation monitoring device corresponding to the transmission line.

6. A method for monitoring snow disasters based on power transmission lines as claimed in claim 1, characterized in that: The specific analysis process of analyzing the deployment positions of snow monitoring equipment corresponding to the transmission lines is as follows: Based on the use of drone data collection technology to obtain the overall snow distribution map of the transmission line, the areas with thick snow cover corresponding to the transmission line are extracted, and combined with the monitoring data transmitted back by the sensors on the transmission line in real time, the areas with severe snow cover corresponding to the transmission line are confirmed and recorded as backlog areas, and the areas corresponding to important positions of the transmission line are obtained from the database, and the backlog areas corresponding to the transmission line are compared with the areas corresponding to important positions of the transmission line in the database. If a backlog area corresponding to the transmission line is the same as an area corresponding to an important position of the transmission line in the database, the important position is used as the deployment position of the snow monitoring equipment. By comparison and analogy, the deployment positions of the snow monitoring equipment corresponding to the transmission line are obtained.

7. The method for monitoring snow disasters based on power transmission lines according to claim 1, characterized in that: The analysis obtains the removal equipment corresponding to the snow accumulation state of the current transmission line. The specific analysis process is as follows: Obtain the historical snow monitoring data corresponding to each level of snow accumulation state stored in the database, and compare it with the monitoring data transmitted in real time by the snow monitoring equipment corresponding to the transmission line. If the monitoring data transmitted in real time by the snow monitoring equipment corresponding to the transmission line is the same as the historical snow monitoring data corresponding to a certain level of snow accumulation state stored in the database, then mark the historical snow removal equipment corresponding to the snow accumulation state at that level, and compare and infer by analogy to obtain each marked equipment; Obtain the removal information corresponding to each marked device, wherein the removal information includes deployment data and removal effect data, the deployment data includes the time required for deployment and the number of auxiliary tools required for deployment, and the removal effect data includes removal residual degree, removal efficiency and removal negative value.

8. A method for monitoring snow disasters based on power transmission lines as claimed in claim 7, characterized in that: The analysis obtains the application comprehensive value of each marked device corresponding to snow removal of the transmission line. The specific analysis process is as follows: The deployment data and removal effect data are extracted from the removal information corresponding to each marking device, and data processing is performed to obtain the deployment evaluation value and removal effect evaluation value corresponding to each marking device, which are denoted as β g and δ g , g is the serial number of each marking device, g = 1, 2, ..., ..., n, n is any integer greater than 2, and the deployment evaluation value and removal effect evaluation value corresponding to each marking device are imported into the removal device analysis model: where ω g is the application comprehensive value of the g-th marked device corresponding to snow removal of the transmission line, β′ is the set reference deployment evaluation value, δ′ is the set reference removal effect evaluation value, ∨ represents or, ∧ represents and; When the comprehensive application value of a certain marking device corresponding to snow removal of the transmission line is -1, the marking device is not used as the application removal device corresponding to the snow state of the transmission line. When the comprehensive application value of a certain marking device corresponding to snow removal of the transmission line is 1 or 0, the marking device is used as the removal device corresponding to the snow state of the transmission line, and is recorded as the removal device. By comparison and analogy, various removal devices are obtained; The application comprehensive values ​​corresponding to each removal device are arranged in descending order, and the removal device ranked first is used as the removal device corresponding to the snow accumulation state of the current transmission line.

9. The method for monitoring snow disasters based on power transmission lines according to claim 1, characterized in that: The analysis obtains the number of devices to be removed from the transmission line. The specific analysis process is as follows: Based on the real-time snow cover data monitored by the snow monitoring equipment corresponding to the transmission line, and combined with the overall snow cover image corresponding to the transmission line obtained by taking pictures with the sensor, the snow cover thickness and snow cover length corresponding to the transmission line are obtained respectively, and the snow removal thickness when the removal equipment removes the snow corresponding to the snow and the reachable distance of the removal equipment moving back and forth are obtained. The snow cover thickness corresponding to the transmission line is subtracted from the snow removal thickness when the removal equipment removes the snow corresponding to the snow, so as to obtain the number of operations required for the removal equipment to remove snow from the transmission line. Secondly, the snow cover length corresponding to the transmission line is subtracted from the reachable distance of the removal equipment moving back and forth to obtain the result value, and the quantity is incremented based on the result value until the reachable distance with increasing result value is greater than or equal to the snow cover length corresponding to the transmission line, so as to obtain the corresponding demand quantity.

10. A snow disaster monitoring system for a power transmission line that implements the snow disaster monitoring method based on a power transmission line according to any one of claims 1 to 9, characterized in that: include: The transmission line snow monitoring module is used to perform preliminary snow monitoring on the transmission line and then determine the snow status corresponding to the transmission line; The transmission line monitoring and analysis module is used to screen the snow monitoring equipment corresponding to the transmission line based on the snow accumulation state corresponding to the transmission line, and analyze the deployment positions of the snow monitoring equipment corresponding to the transmission line; The transmission line monitoring and management module is used to analyze the monitoring data transmitted in real time by the snow monitoring equipment corresponding to the transmission line, and then obtain the removal equipment corresponding to the current snow state of the transmission line, and analyze the number of removal equipment placed corresponding to the transmission line.

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