Automatic monitoring system for snow particle movement and power transmission line galloping

Abstract

The invention discloses an automatic monitoring system for snow particle movement and power transmission line galloping, and relates to the technical field of power transmission line monitoring, and the system comprises a selection module which is used for selecting two adjacent electric wire piles and determining a monitored power transmission line; and the power transmission line information acquisition module is used for acquiring and monitoring initial snowfall information near the power transmission line and initial position information of the power transmission line. The snowfall density and the wind direction information near the power transmission line are analyzed to determine the snowflake attachment information and the power transmission line galloping information, and the snowflake attachment information and the power transmission line galloping information are calculated and analyzed to determine the load limit arrival time of the power transmission line and the abnormal information of the power transmission line. Transmission line load limit arrival time and transmission line abnormal information are transmitted to a remote display end through the alarm module, snow removal processing and maintenance operation are carried out on the transmission line, local power failure caused by breakage of the transmission line due to too much accumulated snow is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line monitoring, and in particular to an automatic monitoring system for snow particle movement and power transmission line dancing. Background Art

[0002] The transmission line is realized by using a transformer to step up the voltage of the electric energy generated by the generator, and then connecting it to the transmission line through control equipment such as circuit breakers. In terms of structural form, the transmission line is divided into overhead transmission lines and cable lines. Overhead transmission lines are composed of line towers, conductors, insulators, line hardware, guy wires, tower foundations, grounding devices, etc., and are erected above the ground. According to the nature of the transmitted current, power transmission is divided into AC transmission and DC transmission.

[0003] When the snowfall is too heavy, snowflakes will accumulate on the surface of the transmission lines. When the snowflakes accumulate too much, they may cause the transmission lines to break, causing local power outages. In addition, when the wind speed is too high, it will cause the transmission lines to swing. When the swing amplitude of the transmission lines is too large, it will have an adverse effect on the power grid. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, a system for automatically monitoring the movement of snow particles and the dancing of transmission lines is provided. This technical solution solves the problem raised in the above-mentioned background technology that when the snowfall is too heavy, snowflakes will accumulate on the surface of the transmission lines. When the snowflakes accumulate too much, it may cause the transmission lines to break, causing local power outages. In addition, when the wind speed is too high, it will cause the transmission lines to dance. When the amplitude of the transmission line dancing is too large, it will have an adverse effect on the power grid.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] An automatic monitoring system for snow particle movement and power line dancing, comprising:

[0007] A selection module, the selection module is used to select two adjacent power line piles to determine the monitoring transmission line;

[0008] A transmission line information collection module, the transmission line information collection module is used to collect and monitor initial snowfall information near the transmission line, initial position information of the transmission line, real-time wind direction information, and real-time snow density information, wherein the initial snowfall information includes initial wind direction information and initial snow density information;

[0009] An analysis module, wherein the analysis module analyzes the transmission line according to the initial wind direction information and the initial snow density information, determines the movement trajectory of snow particles and the dancing information of the transmission line, and obtains snowflake attachment information, wherein the dancing information of the transmission line includes the dancing height information of the transmission line and the number of dancing times of the transmission line;

[0010] A transmission line load estimation module, which performs analysis and processing based on snowflake attachment information, determines the transmission line drop height information, estimates the transmission line load based on the transmission line drop height information, and obtains the transmission line load limit arrival time;

[0011] A transmission line dancing prediction module, which performs prediction processing according to the transmission line drop height information and the transmission line dancing information to obtain the transmission line estimated state information;

[0012] A correction module, wherein the correction module corrects the snowflake attachment information and the transmission line estimated state information according to the real-time wind direction information and the real-time snow density information, and obtains the snowflake attachment correction information and the transmission line state correction information;

[0013] A data storage module, the data storage module is used to store initial wind direction information, initial snow density information, initial position information of the transmission line, real-time wind direction information, real-time snow density information, snowflake attachment information, transmission line load limit arrival time, transmission line dancing information, transmission line estimated state information, snowflake attachment correction information, transmission line state correction information;

[0014] An alarm module, which performs judgment and processing according to the transmission line load limit arrival time and the transmission line dancing information, and outputs alarm information;

[0015] The terminal control module is used to control data collection, analysis, and interaction between modules to determine the real-time status of the transmission line.

[0016] Preferably, the transmission line information collection module is used to collect and monitor the initial wind direction information, initial snow density information, and initial position information of the transmission line near the transmission line, and specifically includes the following steps:

[0017] Obtain the distance data between two groups of power poles and the initial position information of the transmission line;

[0018] Perform equal-distance division according to the distance data between the two groups of electric wire piles to obtain the divided space;

[0019] The image acquisition time is set, and the image capture device captures the divided space according to the image acquisition time to obtain information related to the divided space;

[0020] According to the neural network algorithm, feature extraction and processing are performed on the relevant information of the divided space to obtain the initial snow density information;

[0021] Analyze and process the initial snow density information to obtain the initial wind direction information;

[0022] The specific calculation formula for obtaining the initial snow density information is:

[0023]

[0024] In the formula, ρ f is the initial snow density information; N s The number of snow particles in the image acquisition time is divided into spaces; S V is the volume of the divided space; α is the number of divided spaces.

[0025] Preferably, the analysis module analyzes the transmission line according to the initial wind direction information and the initial snow density information, determines the movement trajectory of snow particles, and obtains the snowflake attachment information, specifically including the following steps:

[0026] Analyze wind direction information to determine the trajectory of snow particles;

[0027] Analyze and process the wind direction information and the initial position information of the transmission line to obtain the transmission line dancing information;

[0028] According to the snow particle motion trajectory and the transmission line dancing information, the snow particle motion curve and the transmission line dancing curve are drawn respectively;

[0029] Make judgments and process based on the snow particle motion curve and the transmission line dancing curve;

[0030] If the snow particle motion curve and the transmission line dancing curve have an intersection within the image acquisition time, output the snowflake attachment information;

[0031] If there is no intersection between the snow particle motion curve and the transmission line dancing curve within the image acquisition time, the output monitoring transmission line will show that there is no snowflakes attached to it.

[0032] Preferably, the transmission line load estimation module analyzes and processes the snowflake attachment information, determines the transmission line drop height information, estimates the transmission line load according to the transmission line drop height information, and obtains the transmission line load limit arrival time, specifically including the following steps:

[0033] Analyze and process the image acquisition time and snowflake attachment information to determine the transmission line drop height information;

[0034] Perform difference calculation based on the transmission line drop height information and the transmission line initial position information to obtain the transmission line height offset;

[0035] Obtain material information of the monitored transmission lines;

[0036] Perform tension test according to the material information of the monitored transmission line to obtain the maximum tensile length of the monitored transmission line;

[0037] According to the initial position information of the transmission line, the height offset of the transmission line and the maximum stretching length of the monitored transmission line, an estimated calculation process is performed to obtain the transmission line load limit arrival time;

[0038] The specific calculation formula for obtaining the transmission line load limit arrival time is:

[0039]

[0040] Where, T l L is the time when the load limit of the transmission line is reached; a To monitor the ultimate tensile length of the transmission line; L b is the initial position information of the transmission line; L c is the transmission line height offset; T d is the image acquisition time.

[0041] Preferably, the transmission line dancing prediction module performs prediction processing according to the transmission line drop height information and the transmission line dancing information, and obtains the transmission line estimated state information, specifically including the following steps:

[0042] Analyze and process the information of the descending height of the power transmission line according to the image acquisition time and the height of the power transmission line to obtain a data set of the dancing height of the power transmission line;

[0043] Comparing the data set of the transmission line dancing height with the data set of the transmission line dancing height threshold, the dangerous dancing height of the transmission line is obtained;

[0044] Perform feature search and processing on the number of transmission line dancing times according to the dangerous dancing height of the transmission line to obtain the number of dangerous dancing times of the transmission line;

[0045] Performing comparison processing according to the number of dangerous dancing of the transmission line and the set first threshold value;

[0046] If the number of dangerous dancing of the transmission line is greater than the set first threshold, outputting abnormal dancing information of the transmission line;

[0047] If the number of dangerous dancing of the transmission line is less than or equal to the set first threshold, the normal dancing information of the transmission line is output.

[0048] Preferably, the step of performing a comparison process based on the transmission line dancing height information and the transmission line dancing height threshold data set to obtain the dangerous dancing height of the transmission line specifically comprises the following steps:

[0049] According to the transmission line drop height information at different times, the transmission line galloping height threshold data set is traversed and searched to obtain the transmission line galloping height threshold at different times;

[0050] Compare and process the transmission line galloping height information at different times with the transmission line galloping height thresholds at different times;

[0051] If the transmission line dancing height information at different times is greater than the transmission line dancing height threshold at different times, the dangerous dancing height of the transmission line is output;

[0052] If the transmission line dancing height information at different times is less than or equal to the transmission line dancing height threshold at different times, the normal transmission line dancing height is output.

[0053] Preferably, the correction module corrects the snowflake attachment information and the estimated state information of the transmission line according to the real-time wind direction information and the real-time snow density information, and obtaining the snowflake attachment correction information and the transmission line state correction information specifically includes the following steps:

[0054] Obtain real-time wind direction information, real-time snow density information, and real-time transmission line location information through the transmission line information collection module;

[0055] Calculate and process the real-time snow density information and the initial snow density information to obtain the snow density offset;

[0056] Calculate and process the real-time wind direction information and the initial wind direction information to obtain the wind direction offset;

[0057] Performing comparison processing according to the snow density offset and setting a second threshold;

[0058] If the snow density offset is greater than the set second threshold value, the real-time snow density information is greater than the initial snow density information, the snowflake attachment correction information is output, and the transmission line load limit arrival time is shortened;

[0059] If the snow density offset is equal to the set second threshold value, the real-time snow density information is equal to the initial snow density information, and the output transmission line load limit arrival time remains unchanged;

[0060] If the snow density offset is less than the set second threshold value, the real-time snow density information is less than the initial snow density information, the snowflake attachment correction information is output, and the transmission line load limit arrival time is extended;

[0061] Comparison processing is performed based on the wind direction offset and the set third threshold to obtain transmission line status correction information.

[0062] Preferably, the step of performing comparison processing based on the wind direction offset and the set third threshold value to obtain the transmission line status correction information specifically includes the following steps:

[0063] Performing comparison processing according to the wind direction offset and a set third threshold value;

[0064] If the wind direction deviation is greater than the set third threshold, the real-time wind direction information is greater than the initial wind direction information, and the number of dangerous transmission line swings is greater than the set first threshold, output real-time transmission line swing abnormality information;

[0065] If the wind direction deviation is greater than the set third threshold, the real-time wind direction information is greater than the initial wind direction information, and the number of dangerous transmission line swings is less than or equal to the set first threshold, output the real-time transmission line normal swing information;

[0066] If the wind direction deviation is less than or equal to the set third threshold, the real-time wind direction information is less than or equal to the initial wind direction information, and the number of dangerous transmission line gallops is greater than the set first threshold, output real-time transmission line gallop abnormal information;

[0067] If the wind direction offset is less than or equal to the set third threshold, the real-time wind direction information is less than or equal to the initial wind direction information, and the number of dangerous transmission line swings is less than or equal to the set first threshold, the real-time transmission line normal swing information is output.

[0068] Preferably, the alarm module performs judgment and processing according to the load limit arrival time of the transmission line and the real-time dancing information of the transmission line, and outputs the alarm information specifically including the following steps:

[0069] The alarm module sends snow clearing information to the remote display terminal according to the load limit arrival time of the transmission line, and the remote control terminal clears the transmission line according to the snow clearing information;

[0070] The alarm module sends the transmission line dancing information to the remote display terminal according to the transmission line dancing information. If the transmission line dancing is abnormal, the transmission line is repaired; if the transmission line dancing is normal, there is no need to repair the transmission line.

[0071] Compared with the prior art, the present invention provides an automatic monitoring system for snow particle movement and power line dancing, which has the following beneficial effects:

[0072] The present invention determines the snowflake attachment information and the transmission line dancing information by analyzing the snowfall density and wind direction information near the transmission line, and calculates and analyzes the snowflake attachment information and the transmission line dancing information to determine the transmission line load limit arrival time and the transmission line abnormality information, and transmits the transmission line load limit arrival time and the transmission line abnormality information to the remote display terminal through an alarm module, performs snow removal and maintenance operations on the transmission line, avoids the transmission line from being broken due to excessive snow accumulation, causing local power outages, and reduces safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 This is a structural block diagram of an automatic monitoring system for snow particle movement and transmission line dancing proposed by the present invention;

[0074] Figure 2 It is a schematic diagram of the process of collecting initial wind direction information, initial snow density information, and initial position information of the transmission line in the present invention;

[0075] Figure 3 A schematic diagram of the process of obtaining snowflake attachment information in the present invention;

[0076] Figure 4 A schematic diagram of a process for obtaining the load limit arrival time of a transmission line in the present invention;

[0077] Figure 5 A schematic diagram of the process of obtaining estimated state information of a transmission line in the present invention;

[0078] Figure 6 A schematic diagram of a process for obtaining a dangerous dancing height of a transmission line in the present invention;

[0079] Figure 7 It is a schematic diagram of the process of obtaining snowflake attachment correction information and transmission line status correction information in the present invention;

[0080] Figure 8 A schematic diagram of the process of obtaining transmission line status correction information in the present invention

[0081] Fig. 9 It is a schematic diagram of the process of outputting alarm information in the present invention. DETAILED DESCRIPTION

[0082] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0083] Reference Figure 1 As shown, a snow particle movement and transmission line dancing automatic monitoring system comprises:

[0084] A selection module, the selection module is used to select two adjacent power line piles to determine the monitoring transmission line;

[0085] A transmission line information collection module, the transmission line information collection module is used to collect and monitor initial snowfall information near the transmission line, initial position information of the transmission line, real-time wind direction information, and real-time snow density information, wherein the initial snowfall information includes initial wind direction information and initial snow density information;

[0086] An analysis module, wherein the analysis module analyzes the transmission line according to the initial wind direction information and the initial snow density information, determines the movement trajectory of snow particles and the dancing information of the transmission line, and obtains snowflake attachment information, wherein the dancing information of the transmission line includes the dancing height information of the transmission line and the number of dancing times of the transmission line;

[0087] A transmission line load estimation module, which performs analysis and processing based on snowflake attachment information, determines the transmission line drop height information, estimates the transmission line load based on the transmission line drop height information, and obtains the transmission line load limit arrival time;

[0088] A transmission line dancing prediction module, which performs prediction processing according to the transmission line drop height information and the transmission line dancing information to obtain the transmission line estimated state information;

[0089] A correction module, wherein the correction module corrects the snowflake attachment information and the transmission line estimated state information according to the real-time wind direction information and the real-time snow density information, and obtains the snowflake attachment correction information and the transmission line state correction information;

[0090] A data storage module, the data storage module is used to store initial wind direction information, initial snow density information, initial position information of the transmission line, real-time wind direction information, real-time snow density information, snowflake attachment information, transmission line load limit arrival time, transmission line dancing information, transmission line estimated state information, snowflake attachment correction information, transmission line state correction information;

[0091] An alarm module, which performs judgment and processing according to the transmission line load limit arrival time and the transmission line dancing information, and outputs alarm information;

[0092] A terminal control module, which is used to control data collection, analysis, and interaction between various modules to determine the real-time status of the transmission line;

[0093] Those skilled in the art will appreciate that when there is too much snow on a transmission line or the transmission line swings too far, it can easily cause the transmission line to break, resulting in a local power outage. Therefore, the wind direction and snow density near the transmission line are analyzed to determine the snow particles attached to the surface of the transmission line within a set time, and the descent height of the transmission line is obtained. The transmission line is analyzed based on the material of the transmission line to obtain the time when the load limit of the transmission line is reached. When the wind gets stronger or the snowfall gets heavier, the time when the load limit of the transmission line is reached is corrected. The staff removes the snow on the surface of the transmission line based on the corrected data to avoid the transmission line from breaking and causing a local power outage. In addition, when the wind speed is too high, the transmission line will swing too far. When the transmission line swings too far, it may also cause the transmission line to break. Therefore, the state of the transmission line is analyzed in combination with the wind speed and snowfall, so that the transmission line is always in a safe state, reducing safety hazards.

[0094] Reference Figure 2 As shown, the transmission line information collection module is used to collect and monitor the initial wind direction information, initial snow density information, and initial position information of the transmission line near the transmission line, and specifically includes the following steps:

[0095] Obtain the distance data between two groups of power poles and the initial position information of the transmission line;

[0096] Perform equal-distance division according to the distance data between the two groups of electric wire piles to obtain the divided space;

[0097] The image acquisition time is set, and the image capture device captures the divided space according to the image acquisition time to obtain information related to the divided space;

[0098] According to the neural network algorithm, feature extraction and processing are performed on the relevant information of the divided space to obtain the initial snow density information;

[0099] Taking snowflakes as features, the neural network algorithm is used to extract features of the partition space related information, determine the number of snowflakes in the partition space related information, and calculate based on the snowflake data and the partition space to determine the initial snow density information;

[0100] Analyze and process the initial snow density information to obtain the initial wind direction information;

[0101] The specific calculation formula for obtaining the initial snow density information is:

[0102]

[0103] In the formula, ρ f is the initial snow density information; N s The number of snow particles in the image acquisition time is divided into spaces; S V is the volume of the divided space; α is the number of divided spaces;

[0104] Reference Figure 3 As shown, the analysis module analyzes the transmission line according to the initial wind direction information and the initial snow density information, determines the movement trajectory of snow particles, and obtains the snowflake attachment information, which specifically includes the following steps:

[0105] Analyze wind direction information to determine the trajectory of snow particles;

[0106] Analyze and process the wind direction information and the initial position information of the transmission line to obtain the transmission line dancing information;

[0107] The initial position of the transmission line is a position without any natural wind. When natural wind appears, the transmission line will dance with the wind direction of the natural wind, and then the transmission line dancing information is obtained;

[0108] According to the snow particle motion trajectory and the transmission line dancing information, the snow particle motion curve and the transmission line dancing curve are drawn respectively;

[0109] By collecting images of two groups of power poles at different times, the positions of snow particles in the images at different times are determined, and the motion trajectories of the same snow particles at different times are connected to obtain the snow particle motion curve. At the same time, the positions of the power lines in the images at different times are determined. Each position corresponds to a power line dancing curve. When there is an intersection between the snow particle motion curve at a certain time and the power line dancing curve at a certain position, the snowflake attachment information is obtained.

[0110] Make judgments and process based on the snow particle motion curve and the transmission line dancing curve;

[0111] If the snow particle motion curve and the transmission line dancing curve have an intersection within the image acquisition time, output the snowflake attachment information;

[0112] If the snow particle motion curve and the transmission line dancing curve do not have an intersection within the image acquisition time, the output monitoring transmission line has no snowflakes attached;

[0113] In this embodiment, the distance between the two groups of electric poles is divided into equal intervals, the number of snowfalls in each space is counted, the snowfall density in the space is calculated, and then the snowfall density of the distance between the two groups of electric poles is calculated. In combination with the wind direction information, the movement trajectory of the snow particles at different times is determined, and the dancing trajectory of the transmission line at different times is obtained. When the movement trajectory of the snow particles and the dancing trajectory of the transmission line intersect at the same time, the snow particles can adhere to the transmission line. Since the snow particles adhere to the transmission line, the weight of the transmission line changes, and the height of the transmission line also changes. When there is too much snow, the transmission line may break. Therefore, the descent height of the transmission line is estimated according to the snowfall density, and the staff clears the snow from the transmission line according to the estimated time to avoid the transmission line from breaking.

[0114] It is worth noting that natural wind may change during the blowing process, but this change process is a slow process, not a rapid process. When analyzing through wind direction information, since snowflakes are very light, they will float with the wind direction. At the same time, snowflakes will also shift downward under the action of gravity. Therefore, snowflakes produce the movement trajectory of snow particles under the combined action of wind direction and gravity.

[0115] Reference Figure 4 As shown, the transmission line load estimation module analyzes and processes the snow attachment information, determines the transmission line drop height information, estimates the transmission line load according to the transmission line drop height information, and obtains the transmission line load limit arrival time, which specifically includes the following steps:

[0116] Analyze and process the image acquisition time and snowflake attachment information to determine the transmission line drop height information;

[0117] By collecting images of the transmission lines at different times, the amount of snow attached to the transmission lines at different times is different, and the height of the transmission lines is also different. Even if the transmission lines are unevenly covered with ice, a low-frequency, large-amplitude vibration caused by wind will exist at the highest and lowest heights, and the lowest height is the height information of the transmission line descent.

[0118] Perform difference calculation based on the transmission line drop height information and the transmission line initial position information to obtain the transmission line height offset;

[0119] Obtain material information of the monitored transmission lines;

[0120] Perform tension test according to the material information of the monitored transmission line to obtain the maximum tensile length of the monitored transmission line;

[0121] According to the initial position information of the transmission line, the height offset of the transmission line and the maximum stretching length of the monitored transmission line, an estimated calculation process is performed to obtain the transmission line load limit arrival time;

[0122] The specific calculation formula for obtaining the transmission line load limit arrival time is:

[0123]

[0124] Where, T l L is the time when the load limit of the transmission line is reached; a To monitor the ultimate tensile length of the transmission line; L b is the initial position information of the transmission line; L c is the transmission line height offset; T d is the image acquisition time.

[0125] Reference Figure 5 As shown, the transmission line dancing prediction module performs prediction processing based on the transmission line drop height information and the transmission line dancing information, and obtains the transmission line estimated state information, specifically including the following steps:

[0126] Analyze and process the information of the descending height of the power transmission line according to the image acquisition time and the height of the power transmission line to obtain a data set of the dancing height of the power transmission line;

[0127] Comparing the data set of the transmission line dancing height with the data set of the transmission line dancing height threshold, the dangerous dancing height of the transmission line is obtained;

[0128] Perform feature search and processing on the number of transmission line dancing times according to the dangerous dancing height of the transmission line to obtain the number of dangerous dancing times of the transmission line;

[0129] Performing comparison processing according to the number of dangerous dancing of the transmission line and the set first threshold value;

[0130] If the number of dangerous dancing of the transmission line is greater than the set first threshold, outputting abnormal dancing information of the transmission line;

[0131] If the number of dangerous dancing of the transmission line is less than or equal to the set first threshold, the normal dancing information of the transmission line is output;

[0132] Reference Figure 6As shown, according to the comparison processing between the transmission line dancing height information and the transmission line dancing height threshold data set, obtaining the dangerous dancing height of the transmission line specifically includes the following steps:

[0133] According to the transmission line drop height information at different times, the transmission line galloping height threshold data set is traversed and searched to obtain the transmission line galloping height threshold at different times;

[0134] Compare and process the transmission line galloping height information at different times with the transmission line galloping height thresholds at different times;

[0135] It should be noted that the transmission line galloping height information at different times and the transmission line galloping height threshold at different times refer to the two sets of data being compared at the same time, and different times refer to different times within the image acquisition time;

[0136] If the transmission line dancing height information at different times is greater than the transmission line dancing height threshold at different times, the dangerous dancing height of the transmission line is output;

[0137] If the transmission line galloping height information at different times is less than or equal to the transmission line galloping height threshold at different times, output the normal galloping height of the transmission line;

[0138] Those skilled in the art can understand that when the dancing height of the transmission line is too high, it may cause the transmission line to detach from the power pole and then fall, causing a fire. Therefore, the dancing height of the transmission line is analyzed. When the dancing height of the transmission line is greater than the transmission line dancing height threshold, it cannot be directly determined that the transmission line is dancing abnormally. It is necessary to compare the number of dangerous dancing of the transmission line with the first threshold. When it is greater than the first threshold, it means that the transmission line is dancing abnormally. It should be noted that with the change of time, the descent height of the transmission line will increase. Therefore, the dancing height of the transmission line will also change. Similarly, the transmission line dancing height threshold will also change. Therefore, a transmission line dancing height threshold data set is established for comparison with the transmission line dancing height information.

[0139] Reference Figure 7 As shown, the correction module corrects the snowflake attachment information and the estimated state information of the transmission line according to the real-time wind direction information and the real-time snow density information, and obtaining the snowflake attachment correction information and the transmission line state correction information specifically includes the following steps:

[0140] Obtain real-time wind direction information, real-time snow density information, and real-time transmission line location information through the transmission line information collection module;

[0141] Calculate and process the real-time snow density information and the initial snow density information to obtain the snow density offset;

[0142] Calculate and process the real-time wind direction information and the initial wind direction information to obtain the wind direction offset;

[0143] Performing comparison processing according to the snow density offset and setting a second threshold;

[0144] If the snow density offset is greater than the set second threshold value, the real-time snow density information is greater than the initial snow density information, the snowflake attachment correction information is output, and the transmission line load limit arrival time is shortened;

[0145] If the snow density offset is equal to the set second threshold value, the real-time snow density information is equal to the initial snow density information, and the output transmission line load limit arrival time remains unchanged;

[0146] If the snow density offset is less than the set second threshold value, the real-time snow density information is less than the initial snow density information, the snowflake attachment correction information is output, and the transmission line load limit arrival time is extended;

[0147] Comparison processing is performed based on the wind direction offset and the set third threshold to obtain transmission line status correction information.

[0148] Reference Figure 8 As shown, the comparison process is performed based on the wind direction offset and the set third threshold value to obtain the transmission line status correction information, which specifically includes the following steps:

[0149] Performing comparison processing according to the wind direction offset and a set third threshold value;

[0150] If the wind direction deviation is greater than the set third threshold, the real-time wind direction information is greater than the initial wind direction information, and the number of dangerous transmission line swings is greater than the set first threshold, output real-time transmission line swing abnormality information;

[0151] If the wind direction deviation is greater than the set third threshold, the real-time wind direction information is greater than the initial wind direction information, and the number of dangerous transmission line swings is less than or equal to the set first threshold, output the real-time transmission line normal swing information;

[0152] If the wind direction deviation is less than or equal to the set third threshold, the real-time wind direction information is less than or equal to the initial wind direction information, and the number of dangerous transmission line gallops is greater than the set first threshold, output real-time transmission line gallop abnormal information;

[0153] If the wind direction deviation is less than or equal to the set third threshold, the real-time wind direction information is less than or equal to the initial wind direction information, and the number of dangerous transmission line gallops is less than or equal to the set first threshold, output the real-time transmission line gallop normal information;

[0154] It is understandable to those skilled in the art that the snowfall and wind direction near the transmission line may change and are not static. Therefore, it is necessary to collect data from the transmission line at all times through the transmission line information collection module, and synchronously correct various data to ensure the accuracy and synchronization of various data, further reduce safety hazards, and avoid transmission line breaks;

[0155] The wind direction offset is calculated based on the wind speed at different times;

[0156] When the wind speed in the area near the transmission line changes and the snowflake attachment on the transmission line also changes, the state of the transmission line will also change. This is because the amount of snowflake attachment on the transmission line increases, resulting in an increase in weight. The increase in the weight of the transmission line will cause the number of dangerous dancing times to change. When the material of the transmission line remains unchanged, the weight of the transmission line increases, so the probability of the transmission line breaking will also increase, that is, the number of dangerous dancing times of the transmission line will decrease. Therefore, under the influence of the wind direction offset, the range of the dangerous dancing times of the transmission line will also change. Therefore, the wind direction offset is needed to correct and judge the state of the transmission line.

[0157] Reference Fig. 9 As shown, the alarm module makes judgments and processes according to the load limit arrival time of the transmission line and the real-time dancing information of the transmission line, and outputs the alarm information, specifically including the following steps:

[0158] The alarm module sends snow clearing information to the remote display terminal according to the load limit arrival time of the transmission line, and the remote control terminal clears the transmission line according to the snow clearing information;

[0159] The alarm module sends the transmission line dancing information to the remote display terminal according to the transmission line dancing information. If the transmission line dancing is abnormal, the transmission line is repaired; if the transmission line dancing is normal, there is no need to repair the transmission line.

[0160] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic monitoring system for snow particle movement and power line dancing, characterized in that: include: A selection module, the selection module is used to select two adjacent power line piles to determine the monitoring transmission line; A transmission line information collection module, the transmission line information collection module is used to collect and monitor initial snowfall information near the transmission line, initial position information of the transmission line, real-time wind direction information, and real-time snow density information, wherein the initial snowfall information includes initial wind direction information and initial snow density information; An analysis module, wherein the analysis module analyzes the transmission line according to the initial wind direction information and the initial snow density information, determines the movement trajectory of snow particles and the dancing information of the transmission line, and obtains snowflake attachment information, wherein the dancing information of the transmission line includes the dancing height information of the transmission line and the number of dancing times of the transmission line; A transmission line load estimation module, which performs analysis and processing based on snowflake attachment information, determines the transmission line drop height information, estimates the transmission line load based on the transmission line drop height information, and obtains the transmission line load limit arrival time; A transmission line dancing prediction module, which performs prediction processing according to the transmission line drop height information and the transmission line dancing information to obtain the transmission line estimated state information; A correction module, wherein the correction module corrects the snowflake attachment information and the transmission line estimated state information according to the real-time wind direction information and the real-time snow density information, and obtains the snowflake attachment correction information and the transmission line state correction information; A data storage module, the data storage module is used to store initial wind direction information, initial snow density information, initial position information of the transmission line, real-time wind direction information, real-time snow density information, snowflake attachment information, transmission line load limit arrival time, transmission line dancing information, transmission line estimated state information, snowflake attachment correction information, transmission line state correction information; An alarm module, which performs judgment and processing according to the transmission line load limit arrival time and the transmission line dancing information, and outputs alarm information; The terminal control module is used to control data collection, analysis, and interaction between modules to determine the real-time status of the transmission line.

2. The automatic monitoring system for snow particle movement and power line dancing according to claim 1, characterized in that: The transmission line information collection module is used to collect and monitor the initial wind direction information, initial snow density information, and initial position information of the transmission line near the transmission line, and specifically includes the following steps: Obtain the distance data between two groups of power poles and the initial position information of the transmission line; Perform equal-distance division according to the distance data between the two groups of electric wire piles to obtain the divided space; The image acquisition time is set, and the image capture device captures the divided space according to the image acquisition time to obtain information related to the divided space; According to the neural network algorithm, feature extraction and processing are performed on the relevant information of the divided space to obtain the initial snow density information; Analyze and process the initial snow density information to obtain the initial wind direction information; The specific calculation formula for obtaining the initial snow density information is: In the formula, ρ f is the initial snow density information; N s The number of snow particles in the image acquisition time is divided into spaces; S V is the volume of the divided space; α is the number of divided spaces.

3. The automatic monitoring system for snow particle movement and power line dancing according to claim 2, characterized in that: The analysis module analyzes the transmission line according to the initial wind direction information and the initial snow density information, determines the movement trajectory of snow particles, and obtains the snowflake attachment information, which specifically includes the following steps: Analyze wind direction information to determine the trajectory of snow particles; Analyze and process the wind direction information and the initial position information of the transmission line to obtain the transmission line dancing information; According to the snow particle motion trajectory and the transmission line dancing information, the snow particle motion curve and the transmission line dancing curve are drawn respectively; Make judgments and process based on the snow particle motion curve and the transmission line dancing curve; If the snow particle motion curve and the transmission line dancing curve have an intersection within the image acquisition time, output the snowflake attachment information; If there is no intersection between the snow particle motion curve and the transmission line dancing curve within the image acquisition time, the output monitoring transmission line will show that there is no snowflakes attached to it.

4. The automatic monitoring system for snow particle movement and power line dancing according to claim 3, characterized in that: The transmission line load estimation module analyzes and processes the snow attachment information, determines the transmission line drop height information, estimates the transmission line load according to the transmission line drop height information, and obtains the transmission line load limit arrival time, which specifically includes the following steps: Analyze and process the image acquisition time and snowflake attachment information to determine the transmission line drop height information; Perform difference calculation based on the transmission line drop height information and the transmission line initial position information to obtain the transmission line height offset; Obtain material information of the monitored transmission lines; Perform tension test according to the material information of the monitored transmission line to obtain the maximum tensile length of the monitored transmission line; According to the initial position information of the transmission line, the height offset of the transmission line and the maximum stretching length of the monitored transmission line, an estimated calculation process is performed to obtain the transmission line load limit arrival time; The specific calculation formula for obtaining the transmission line load limit arrival time is: Where, T l L is the time when the load limit of the transmission line is reached; a To monitor the ultimate tensile length of the transmission line; L b is the initial position information of the transmission line; L c is the transmission line height offset; T d is the image acquisition time.

5. The automatic monitoring system for snow particle movement and power line dancing according to claim 4, characterized in that: The transmission line dancing prediction module performs prediction processing according to the transmission line drop height information and the transmission line dancing information, and obtains the transmission line estimated state information, specifically including the following steps: Analyze and process the information of the descending height of the power transmission line according to the image acquisition time and the height of the power transmission line to obtain a data set of the dancing height of the power transmission line; Comparing the data set of the transmission line dancing height with the data set of the transmission line dancing height threshold, the dangerous dancing height of the transmission line is obtained; Perform feature search and processing on the number of transmission line dancing times according to the dangerous dancing height of the transmission line to obtain the number of dangerous dancing times of the transmission line; Performing comparison processing according to the number of dangerous dancing of the transmission line and the set first threshold value; If the number of dangerous dancing of the transmission line is greater than the set first threshold, outputting abnormal dancing information of the transmission line; If the number of dangerous dancing of the transmission line is less than or equal to the set first threshold, the normal dancing information of the transmission line is output.

6. The automatic monitoring system for snow particle movement and power line dancing according to claim 5, characterized in that: The step of comparing the transmission line dancing height information with the transmission line dancing height threshold data set to obtain the dangerous dancing height of the transmission line specifically includes the following steps: According to the transmission line drop height information at different times, the transmission line galloping height threshold data set is traversed and searched to obtain the transmission line galloping height threshold at different times; Compare and process the transmission line galloping height information at different times with the transmission line galloping height thresholds at different times; If the transmission line dancing height information at different times is greater than the transmission line dancing height threshold at different times, the dangerous dancing height of the transmission line is output; If the transmission line dancing height information at different times is less than or equal to the transmission line dancing height threshold at different times, the normal transmission line dancing height is output.

7. The automatic monitoring system for snow particle movement and power line dancing according to claim 6, characterized in that: The correction module corrects the snowflake attachment information and the estimated state information of the transmission line according to the real-time wind direction information and the real-time snow density information, and obtaining the snowflake attachment correction information and the transmission line state correction information specifically includes the following steps: Obtain real-time wind direction information, real-time snow density information, and real-time transmission line location information through the transmission line information collection module; Calculate and process the real-time snow density information and the initial snow density information to obtain the snow density offset; Calculate and process the real-time wind direction information and the initial wind direction information to obtain the wind direction offset; Performing comparison processing according to the snow density offset and setting a second threshold; If the snow density offset is greater than the set second threshold value, the real-time snow density information is greater than the initial snow density information, the snowflake attachment correction information is output, and the transmission line load limit arrival time is shortened; If the snow density offset is equal to the set second threshold value, the real-time snow density information is equal to the initial snow density information, and the output transmission line load limit arrival time remains unchanged; If the snow density offset is less than the set second threshold value, the real-time snow density information is less than the initial snow density information, the snowflake attachment correction information is output, and the transmission line load limit arrival time is extended; Comparison processing is performed based on the wind direction offset and the set third threshold to obtain transmission line status correction information.

8. The automatic monitoring system for snow particle movement and power line dancing according to claim 7, characterized in that: The step of performing comparison processing based on the wind direction offset and the set third threshold value to obtain the transmission line status correction information specifically includes the following steps: Performing comparison processing according to the wind direction offset and a set third threshold value; If the wind direction deviation is greater than the set third threshold, the real-time wind direction information is greater than the initial wind direction information, and the number of dangerous transmission line swings is greater than the set first threshold, output real-time transmission line swing abnormality information; If the wind direction deviation is greater than the set third threshold, the real-time wind direction information is greater than the initial wind direction information, and the number of dangerous transmission line swings is less than or equal to the set first threshold, output the real-time transmission line normal swing information; If the wind direction deviation is less than or equal to the set third threshold, the real-time wind direction information is less than or equal to the initial wind direction information, and the number of dangerous transmission line gallops is greater than the set first threshold, output real-time transmission line gallop abnormal information; If the wind direction offset is less than or equal to the set third threshold, the real-time wind direction information is less than or equal to the initial wind direction information, and the number of dangerous transmission line swings is less than or equal to the set first threshold, the real-time transmission line normal swing information is output.

9. The automatic monitoring system for snow particle movement and power line dancing according to claim 1, characterized in that: The alarm module performs judgment and processing according to the transmission line load limit arrival time and the transmission line dancing information, and outputs the alarm information, specifically including the following steps: The alarm module sends snow clearing information to the remote display terminal according to the load limit arrival time of the transmission line, and the remote control terminal clears the transmission line according to the snow clearing information; The alarm module sends the transmission line dancing information to the remote display terminal according to the transmission line dancing information. If the transmission line dances abnormally, the transmission line is inspected and repaired; If the transmission line gallops normally, there is no need to inspect the transmission line.

Images