High-speed railway power supply contact line laying method and system and storage medium

Abstract

The invention relates to a high-speed railway power supply contact line laying method and system and a storage medium, and relates to the technical field of contact line laying, and the method comprises the steps: obtaining a first road section terrain of a current to-be-laid power supply contact line; determining a standard tension value of a power supply contact line according to the terrain of the first road section, and obtaining an actual tension value on a tension pay-off rack in a tractor; the actual tension value is compared with the standard tension value, and when the actual tension value is larger than the standard tension value, the traction speed of the tractor is reduced; when the actual tension value is equal to the standard tension value, if the terrain of the second road section is a downhill terrain, determining a deceleration time node when the tractor decelerates in advance, and reducing the traction speed of the tractor based on the deceleration time node; and when the actual tension value is smaller than the standard tension value, the traction speed of the tractor is increased. The application has the effect of improving the laying quality of the power supply contact line.

Description

Technical Field

[0001] The present application relates to the technical field of contact line laying, and in particular to a method, system and storage medium for laying contact lines for power supply of high-speed railways. Background Art

[0002] The power contact wire, also known as the contact wire, is a key device used to transmit electric energy to trains in electrified railways (such as high-speed railways), and is usually a core component of the overhead contact network. It transmits high-voltage electricity from the traction substation to the train motor through direct contact with the pantograph on the top of the train to drive the train. The power contact wire is the "artery" of the electrified transportation system, and its performance directly affects the safety and efficiency of train operation. Through the reasonable design of materials, tension and suspension structure, combined with regular maintenance, its long-term and reliable operation can be ensured. It can be seen that the laying of the power contact wire is of great significance to the subsequent safe operation of trains.

[0003] At present, the commonly used method for laying power contact lines is: in the process of laying power contact lines for high-speed railways, the laying is usually achieved by relying on manual observation and manual adjustment of the wire tension. In this way, the tension of the power contact line is manually adjusted, which is prone to tension instability due to human factors, resulting in poor laying quality of the power contact line. Summary of the invention

[0004] In order to improve the laying quality of power supply contact lines, the present application provides a method, system, storage medium and electronic equipment for laying power supply contact lines for high-speed railways.

[0005] In a first aspect of the present application, a method for laying a high-speed railway power supply contact line is provided, which specifically comprises: Obtaining the terrain of the first section of the current power supply contact line to be laid; Determine the standard tension value of the power supply contact wire according to the terrain of the first road section, and obtain the actual tension value on the tension pay-off stand in the tractor; Comparing the actual tension value with the standard tension value, and reducing the traction speed of the tractor when the actual tension value is greater than the standard tension value; When the actual tension value is equal to the standard tension value, if the second road section terrain is a downhill terrain, a deceleration time node for the tractor to decelerate in advance is determined, and based on the deceleration time node, the traction speed of the tractor is reduced, and the second road section terrain is a section of the terrain below the first road section terrain during the laying of the power supply contact line; When the actual tension value is less than the standard tension value, the traction speed of the tractor is increased.

[0006] By adopting the above technical solution, after obtaining the terrain of the first section, the standard tension value with better quality is determined for laying in this terrain of the first section, so as to ensure the laying instruction of the catenary under different terrain conditions. If the actual tension value is greater than the standard tension value, it indicates that during the laying process of the tractor, the tension value of the power supply catenary is too large, which is likely to accelerate the metal fatigue of the catenary and shorten its service life. Then, by reducing the traction speed of the tractor, the tension degree when pulling the catenary is reduced, thereby reducing the tension value of the catenary. If the actual tension value is equal to the standard tension value, since the speed of the tractor will suddenly increase when going downhill, the tension of the power supply catenary during laying will increase instantaneously, which is likely to cause the power supply catenary to be overly tightened and damaged. Therefore, when the terrain of the second section is a downhill terrain, it is necessary to perform early speed reduction treatment on the tractor; if the actual tension value is less than the standard tension value, it indicates that during the laying process of the tractor, the tension value of the power supply catenary is too small, which affects the straightness of the catenary during laying. Then, by increasing the traction speed of the tractor, the tension degree when pulling the catenary is increased, thereby increasing the tension value of the catenary, so as to be linked with the adjustment of the traction speed of the tractor, dynamically adjust the tension of the catenary, and improve the laying quality of the power supply catenary.

[0007] Optionally, the deceleration time node for determining the early deceleration of the tractor specifically includes: Obtain the historical downhill initial speed at which the catenary was tightened and damaged when the historical tractor went downhill, determine the historical speed intervals where each of the historical downhill initial speeds is located, and count the first occurrence times of each of the historical speed intervals. The historical tractor and the tractor are tractors of the same type; Select the first number of historical speed intervals from each of the historical speed intervals in descending order of the first occurrence times to be determined as the target speed intervals; Obtain the historical slope intervals where the historical downhill slopes are located when the downhill initial speed is within a single target speed interval and the catenary was tightened and damaged when the historical tractor went downhill. Count the second occurrence times of each of the historical slope intervals, and select the second number of historical slope intervals from each of the historical slope intervals in descending order of the second occurrence times, and determine them as the target slope intervals corresponding to the single target speed interval; Determine the first weight of each of the target speed intervals and the second weight of the target slope interval corresponding to each of the target speed intervals. The first weight is the ratio of the first occurrence time of each target speed interval to the sum of the first occurrence times of all target speed intervals, and the second weight is the ratio of the second occurrence time of the single target slope interval corresponding to the target speed interval to the sum of the second occurrence times of all corresponding target slope intervals; Determine the deceleration time node for the early deceleration of the tractor according to the first weight and the corresponding second weight.

[0008] By adopting the above technical solution, the greater the first occurrence frequency is, when the initial speed during downhill is within the corresponding historical speed range, it is more likely to cause damage to the catenary due to tension during laying, and then the target speed range is determined; the greater the second occurrence frequency is, when the downhill slope is within the corresponding historical slope range, it is more likely to have damage to the catenary due to tension, and then the target slope range is determined. Finally, by combining the first weight and the corresponding second weight, the deceleration time node with a relatively small risk of catenary tension damage during downhill is analyzed and determined.

[0009] Optionally, determining the deceleration time node for the tractor to decelerate in advance according to the first weight and the corresponding second weight specifically includes: Obtain the actual moving speed of the tractor at present and the actual slope corresponding to the terrain of the second section. If the actual moving speed is within the target speed range, determine the corresponding target speed range as the key speed range; Calculate the first product of the first weight of the key speed range and the second weights of the corresponding target slope ranges, and sum up the first products to obtain the corresponding sum of products; If the sum of products is greater than a preset first threshold, determine the target slope range where the actual slope is located as the important slope range. If there is an important slope range among the target slope ranges corresponding to the target speed range, determine the corresponding target speed range as the important speed range; Calculate the second product of the first weight of each important speed range and the second weight of the corresponding important slope range, select the smallest second product from the second products, and determine the important speed range corresponding to the smallest second product as the speed range to be selected; According to the speed range to be selected, the actual moving speed, and the distance between the current position of the tractor and the terrain of the second section, determine the deceleration time node for the tractor to decelerate in advance.

[0010] By adopting the above technical solution, the greater the first product is, when the downhill slope is within the corresponding target slope range, the greater the possibility of catenary tension damage when going downhill at the actual moving speed. Sum up each first product to obtain the sum of products. If the sum of products is greater than the preset first threshold, it indicates that the overall possibility of catenary tension damage when the tractor goes downhill at this actual moving speed is relatively large, and it is necessary to decelerate in advance. Further, the greater the second product is, when the initial downhill speed of the tractor is within the corresponding important speed range, the greater the risk of catenary tension damage. Then determine the speed range to be selected. When the initial downhill speed is within this speed range to be selected, the risk of catenary tension damage is smaller. Finally, based on this, determine the deceleration time node for early deceleration, so that the risk of catenary tension when the tractor goes downhill is relatively small.

[0011] Optionally, when the actual tension value is less than the standard tension value, increasing the traction speed of the tractor specifically includes: When the actual tension value is less than the standard tension value, when the catenary shakes abnormally, obtain the first historical tension range where the catenary tension value on the tension reel of the historical tractor is located, count the first occurrence frequency of each of the first historical tension ranges, and select the third number of first historical tension ranges from each of the first historical tension ranges in descending order of the first occurrence frequency to determine the target tension range; Obtain the wind speed range where the historical wind speed is located when the catenary shakes abnormally and the catenary tension value is within a single target tension range, count the second occurrence frequency of each of the wind speed ranges, and select the fourth number of wind speed ranges from each of the wind speed ranges in descending order of the second occurrence frequency to determine the target wind speed range corresponding to a single target tension range; Determine the third weight of each target tension range and the fourth weight of the target wind speed range corresponding to each target tension range. The third weight is the ratio of the first occurrence frequency of each target tension range to the sum of the first occurrence frequencies of all target tension ranges, and the fourth weight is the ratio of the second occurrence frequency of the single target wind speed range corresponding to the target tension range to the sum of the second occurrence frequencies of all corresponding target wind speed ranges; Based on the current actual wind speed, the third weight, and the corresponding fourth weight, increase the traction speed of the tractor.

[0012] By adopting the above technical solution, the larger the first occurrence frequency, the more likely it is for abnormal shaking to occur when the catenary tension value is within the corresponding first historical tension range, and then the target tension range is determined; the larger the second occurrence frequency, the more likely it is for abnormal shaking of the catenary to be caused when the wind speed is within the corresponding target wind speed range, and then the target wind speed range is determined. Finally, the third weight and the corresponding fourth weight are used to analyze the catenary tension with a relatively small possibility of abnormal shaking of the catenary under the actual wind speed, and then the traction speed is reasonably adjusted to maintain the laying quality of the catenary.

[0013] Optionally, the increasing the traction speed of the tractor based on the current actual wind speed, the third weight, and the corresponding fourth weight specifically includes: When the current actual wind speed is within the target wind speed range, determine the corresponding target wind speed range as the key wind speed range, and when there is a key wind speed range among the target wind speed ranges corresponding to the target tension range, determine the corresponding target tension range as the key tension range; Calculate the third product of the third weight of each of the key tension intervals and the fourth weight of the corresponding key wind speed interval, select the minimum third product from each of the third products, and determine the key tension interval corresponding to the minimum third product as the reference tension interval; Calculate the tension difference between the standard tension value and the actual tension value, and determine the initial traction speed of the tractor according to the tension difference; If the standard tension value is within the reference tension interval, determine the initial traction speed as the target traction speed, and increase the traction speed of the tractor to the target traction speed.

[0014] By adopting the above technical solution, the larger the third product is, the greater the possibility of abnormal swaying currently. Determine the key tension interval corresponding to the minimum third product as the reference tension interval. At the current actual wind speed, when the catenary tension value is within this reference tension interval, the possibility of abnormal swaying is relatively small. If the standard tension value is within the reference tension interval, then determine the initial traction speed as the target traction speed, and increase the traction speed of the tractor to the target traction speed, which can not only verify the rationality of the standard tension value, but also avoid the problem of abnormal swaying of the catenary after adjusting the traction speed.

[0015] Optionally, the method further includes: When the current actual wind speed is less than the preset wind speed threshold, if the current catenary has abnormal swaying, determine the start swaying time of the catenary, and determine at least one real-time tension value between the start swaying time and the current time; Obtain the flatness interval where the historical tractor moved when the catenary had abnormal swaying during historical laying, count the first occurrence quantity of each of the flatness intervals, and select the fifth quantity of flatness intervals from each of the flatness intervals in descending order of the first occurrence quantity to determine the target flatness interval; Obtain the second historical tension interval where the catenary tension value was when the catenary had abnormal swaying when the historical tractor moved within a single target flatness interval, count the second occurrence quantity of each of the second historical tension intervals, and select the sixth quantity of second historical tension intervals from each of the second historical tension intervals in descending order of the second occurrence quantity, and determine it as the target interval corresponding to a single target flatness interval; Determine the fifth weight for each target flatness interval and determine the sixth weight for the target interval corresponding to each target flatness interval. The fifth weight is the ratio of the first occurrence quantity of each target flatness interval to the sum of the first occurrence quantities of all target flatness intervals. The sixth weight is the ratio of the second occurrence quantity of a single target interval corresponding to the target flatness interval to the sum of the second occurrence quantities of all corresponding target intervals. Based on each of the real-time tension values, the fifth weight, and the corresponding sixth weight, perform track flatness inspection on the high-speed railway.

[0016] By adopting the above technical solution, the larger the first occurrence quantity, when the flatness of the position where the tractor moves is within the corresponding flatness interval, it is more likely to cause abnormal swaying of the catenary, and then determine the target tension interval. The larger the second occurrence quantity, when the catenary tension value is within the corresponding second historical tension interval, it is more likely to have abnormal swaying, and then determine the target interval. Finally, combined with the fifth weight and the corresponding sixth weight, analyze the track flatness of the high-speed railway, so as to realize the inspection of the track flatness.

[0017] Optionally, the performing track flatness inspection on the high-speed railway based on each of the real-time tension values, the fifth weight, and the corresponding sixth weight specifically includes: If the real-time tension value is included in the target interval, determine the corresponding target interval as the reference interval. When there is such a reference interval among the target intervals corresponding to the target flatness interval, determine the corresponding target flatness interval as the reference flatness interval. If the reference flatness interval is within a preset abnormal flatness interval, determine the corresponding reference flatness interval as the final flatness interval, and calculate the fourth product of the fifth weight of each final flatness interval and the sixth weight of the corresponding reference interval. According to the fourth product, determine the inspection order of the corresponding track position, and send each inspection order to the terminal of the railway inspection personnel. The larger the fourth product, the higher the corresponding inspection order. The track position is the position of the tractor corresponding to the real-time tension value.

[0018] By adopting the above technical solution, the larger the fourth product, when the flatness of the railway track is within the corresponding final flatness interval, it is more likely to cause abnormal swaying of the catenary, and the corresponding railway track is more likely to have a problem of poor flatness. Then, according to the fourth product, determine the inspection order of the corresponding track position. The larger the fourth product, the higher the corresponding inspection order. Finally, send each inspection order to the terminal of the railway inspection personnel to timely remind the railway inspection personnel to perform flatness inspection on the corresponding track position.

[0019] In the second aspect of the present application, a laying system for high-speed railway power supply catenary is provided, specifically including: A terrain acquisition module for acquiring the terrain of the first section where the power supply catenary is to be laid currently; A tension determination module for determining the standard tension value of the power supply catenary according to the terrain of the first section, and acquiring the actual tension value on the tension pay-off frame in the tractor; A first speed regulation module for comparing the actual tension value with the standard tension value, and reducing the traction speed of the tractor when the actual tension value is greater than the standard tension value; A second speed regulation module for determining the deceleration time node for the tractor to decelerate in advance when the actual tension value is equal to the standard tension value and the terrain of the second section is a downhill terrain, and reducing the traction speed of the tractor based on the deceleration time node, where the terrain of the second section is the terrain of the next section after the first section during the laying process of the power supply catenary; A third speed regulation module for increasing the traction speed of the tractor when the actual tension value is less than the standard tension value.

[0020] By adopting the above technical solution, the terrain acquisition module acquires the terrain of the first section, the tension determination module determines the actual tension value, then the first speed regulation module reduces the traction speed of the tractor when the actual tension value is greater than the standard tension value. Then the second speed regulation module reduces the traction speed of the tractor in advance when the actual tension value is equal to the standard tension value. Finally, the third speed regulation module increases the traction speed of the tractor when the actual tension value is less than the standard tension value.

[0021] In the third aspect of the present application, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is loaded and executed by a processor, the method steps described in any one of the first aspect are executed.

[0022] In the fourth aspect of the present application, an electronic device is provided, specifically including: A processor, a memory, and a computer program stored in the memory and capable of running on the processor. The processor is used to load and execute the computer program stored in the memory so that the electronic device executes the method described in any one of the first aspect.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: If the actual tension value is greater than the standard tension value, it means that the tension value of the power supply contact line is too large during the laying process of the tractor, which is easy to accelerate the metal fatigue of the contact line and shorten its service life. In this case, the tension of the contact line can be reduced by reducing the traction speed of the tractor to reduce the tension of the traction contact line, thereby reducing the tension value of the contact line. If the actual tension value is equal to the standard tension value, the speed of the tractor will increase suddenly when going downhill, and the tension of the power supply contact line during laying will increase instantly, which is easy to cause the power supply contact line to be over-tightened and damaged. Therefore, when the terrain of the second section is downhill, the tractor needs to be slowed down in advance; if the actual tension value is less than the standard tension value, it means that the tension value of the power supply contact line is too small during the laying process of the tractor, which affects the straightness of the contact line during the laying process. In this case, the tension of the contact line can be increased by increasing the traction speed of the tractor to increase the tension of the traction contact line, thereby increasing the tension value of the contact line, and then linking with the traction speed adjustment of the tractor to dynamically adjust the tension of the contact line and improve the laying quality of the power supply contact line. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of a process of laying a high-speed railway power supply contact line provided in an embodiment of the present application; Figure 2 It is a structural schematic diagram of a high-speed railway power supply contact line laying system provided in an embodiment of the present application; Figure 3 It is a structural schematic diagram of another high-speed railway power supply contact line laying system provided in an embodiment of the present application.

[0025] Explanation of the reference numerals: 11. Terrain acquisition module; 12. Tension determination module; 13. First speed regulation module; 14. Second speed regulation module; 15. Third speed regulation module; 16. Leveling inspection module. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0027] In the description of the embodiments of the present application, words such as "exemplarily", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplarily", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily", "for example" or "for example" is intended to present related concepts in a concrete way.

[0028] In the description of the embodiments of the present application, the term "and / or" merely describes the associated relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, B exists alone, and A and B exist simultaneously. Additionally, unless otherwise specified, the meaning of the term "plural" refers to two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. Furthermore, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The terms "include", "comprise", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0029] See Figure 1 , the embodiments of the present application disclose a schematic flowchart of a method for laying a power supply catenary for high-speed railways, which can be implemented depending on a computer program or run on a high-speed railway power supply catenary laying system based on the von Neumann architecture. This computer program can be integrated into an application or run as an independent tool-type application, and specifically includes: S101: Obtain the terrain of the first section of the power supply catenary to be laid currently.

[0030] Specifically, in the embodiments of the present application, the terrain of the first section is the terrain characteristics of the section where the power supply catenary is currently prepared to be laid on the high-speed railway. The terrain of the first section includes, but is not limited to, uphill terrain, downhill terrain, turning terrain, etc. Further, the power supply catenary for the high-speed railway is mainly laid automatically by a tractor, and the tractor includes, but is not limited to, a tension pay-off frame, a tension sensor, a power supply, and a camera, etc. During the process of laying the power supply catenary, the tractor moves on the track of the high-speed railway, and the tension pay-off frame controls the wire laying to achieve the laying of the power supply catenary for each section of the high-speed railway. Among them, the tension pay-off frame refers to a special device used in the construction or production process of wires and cables (such as catenary wires, cables, copper wires, etc.) to keep the wire stable and evenly pay off by controlling the tension. The power supply device is used to provide electrical energy for the power drive of the tractor.

[0031] Further, in the embodiment of the present application, the execution subject of a method for laying a power supply catenary for high-speed railways disclosed in the present application is a tractor, which is wirelessly connected to a control terminal, and the control terminal is a smart phone or a personal computer. A tractor start-stop software is installed in the control terminal for controlling the start and stop of the laying work of the tractor. In addition, a camera provided in the tractor can obtain real-time images during the laying process of the power supply catenary and real-time images during the wire pay-off process of the tension wire pay-off frame. When the management personnel for laying the power supply catenary start the tractor through the control terminal, they can also view in real time the images of the tractor laying the power supply catenary on site, realizing remote monitoring of the laying process of the power supply catenary for high-speed railways. Finally, a feasible way to obtain the terrain of the first section is: the terrain of the section where the power supply catenary is to be laid can be obtained through a lidar preset on the tractor.

[0032] S102: According to the terrain of the first section, determine the standard tension value of the power supply catenary, and obtain the actual tension value on the tension wire pay-off frame in the tractor.

[0033] Specifically, after the terrain of the first section is determined, in combination with the specific terrain characteristics, determine the standard tension value of the power supply catenary during the laying process. The standard tension value refers to the appropriate tension value that ensures the smoothness of the power supply catenary during the laying process. When laying the power supply catenary in sections with different terrains, the standard tension values for ensuring the smoothness of the power supply catenary are different. In the embodiment of the present application, a feasible way to determine the standard tension value corresponding to the power supply catenary is: match the standard tension value corresponding to the terrain of the first section from a preset tension matching table, where the tension matching table includes different section terrains and the corresponding standard tension values, all of which are set based on the artificial experience of the laying personnel. Further, set the tension value of the power supply catenary to the standard tension value through the hydraulic tension wire pay-off device in the tension wire pay-off frame. As the laying work progresses, obtain the actual tension value on the tension wire pay-off frame in the tractor through a preset tension sensor, that is, the tension value of the catenary on the tension wire pay-off frame.

[0034] S103: Compare the actual tension value with the standard tension value. When the actual tension value is greater than the standard tension value, reduce the traction speed of the tractor.

[0035] Specifically, after determining the actual tension value, compare it with the standard tension value. If the actual tension value is greater than the standard tension value, it indicates that during the laying process of the current tractor, the tension value of the power supply catenary is on the high side, which is likely to accelerate the metal fatigue of the catenary and shorten its service life. Then, it is necessary to dynamically adjust the tension value of the catenary, that is, reduce the actual tension value of the power supply catenary. This can be achieved by reducing the traction speed of the tractor. In the embodiment of the present application, a feasible way to reduce the traction speed of the tractor is as follows: The management personnel for laying the power supply catenary set the final speed after reduction of the tractor through the control terminal and issue a command to reduce the traction speed. The tractor receives the reduction command and adjusts the current traction speed of the tractor to the final speed, so that during the laying process, the power supply catenary always maintains a relatively appropriate tension. In other embodiments, it is also possible to calculate the difference between the actual tension value and the standard tension value, and then match the speed adjustment amount corresponding to this difference through a preset speed adjustment matching table, and further determine the final speed. The greater the difference, the greater the corresponding speed adjustment amount. The speed adjustment matching table includes different differences and the corresponding speed adjustment amounts, and these data can be set based on the experience of the laying personnel or obtained through experiments. In the experiments, different experimental tension values greater than the standard tension value are set, and the traction speed of the tractor is continuously adjusted. When the tension value of the catenary returns to the standard tension value, the difference between the corresponding experimental tension value and the standard tension value and the corresponding speed adjustment amount are determined.

[0036] S104: When the actual tension value is equal to the standard tension value, if the terrain of the second section is a downhill terrain, determine the deceleration time node for the tractor to decelerate in advance, and based on the deceleration time node, reduce the traction speed of the tractor.

[0037] Specifically, the terrain of the second section is the terrain of the next section during the laying process of the power supply contact wire. Exemplarily, the terrain of the first section is flat terrain, and the terrain of the second section is downhill terrain. It can be understood that after the tractor finishes laying the power supply contact wire on the track of the current flat section, it will move on the track of the downhill terrain and continue to lay the power supply contact wire. Further, if the actual tension value is equal to the standard tension value, it indicates that the tension value of the power supply contact wire during the current laying is relatively appropriate. Then, obtain the terrain of the second section. Since the speed of the tractor will suddenly increase when going downhill, the tension of the power supply contact wire being laid will increase instantaneously, which is likely to cause the power supply contact wire to be overly tightened and damaged. Therefore, if the terrain of the second section is downhill terrain, it is necessary to perform a speed reduction treatment on the tractor in advance so that its speed when moving to the terrain of the second section is relatively small, avoiding excessive speed during the downhill process. In an embodiment of the present application, a feasible way for the speed reduction treatment in advance is as follows: Based on the stored historical downhill records, obtain the historical downhill initial speed at which the contact wire was tightened and damaged when the historical tractor went downhill, and determine at least one historical speed interval where each historical downhill initial speed is located. Count the first occurrence times of each historical speed interval. The larger the first occurrence times, the more likely the initial speed during downhill is within the corresponding historical speed interval, and the more likely it is to cause the contact wire to be tightened and damaged during laying. Then, select the first number of historical speed intervals from each historical speed interval in descending order of the first occurrence times and determine them as the target speed intervals, that is, the speed intervals that are likely to cause the contact wire to be tightened and damaged during downhill. Among them, the historical tractor is a tractor that has historically laid the contact wire and has the same type as the tractor. In addition, the historical downhill records include, but are not limited to, the downhill initial speeds of different tractors when the contact wire was tightened and damaged during downhill and the corresponding downhill slopes.

[0038] Further, when obtaining that the downhill initial speed is within a single target speed interval, obtain the historical slope interval where the historical downhill slope at which the contact wire was tightened and damaged when the historical tractor went downhill is located. Count the second occurrence times of each historical slope interval. The larger the second occurrence times, the more likely it is to have the contact wire tightened and damaged when the downhill slope is within the corresponding historical slope interval. Select the second number of historical slope intervals from each historical slope interval in descending order of the second occurrence times and determine them as the target slope intervals corresponding to the target speed interval, that is, the slope intervals that are likely to cause the contact wire to be tightened and damaged.

[0039] Determine the first weight for each target speed interval. The first weight is the ratio of the first occurrence times of each target speed interval to the sum of the first occurrence times of all target speed intervals. Then determine the second weight for the target slope interval corresponding to each target speed interval. The second weight is the ratio of the second occurrence times of a single target slope interval corresponding to the target speed interval to the sum of the second occurrence times of all corresponding target slope intervals. Then, based on the determined first weight and the corresponding second weight, determine the deceleration time node for the tractor to decelerate in advance. An implementable implementation method is as follows: Through a preset speed sensor, obtain the actual moving speed of the tractor, and through a lidar, obtain the actual slope corresponding to the terrain of the second section. If the actual moving speed is within the target speed interval, then determine the corresponding target speed interval as the key speed interval. Calculate the first product of the first weight of this key speed interval and the second weights of the corresponding target slope intervals. The larger the first product, the greater the possibility of contact wire tension damage when going downhill at the actual moving speed within the corresponding target slope interval. Sum up the first products to obtain the sum of products. If the sum of products is greater than a preset first threshold, it indicates that the overall possibility of contact wire tension damage when the tractor goes downhill at this actual moving speed is relatively large and it is necessary to decelerate in advance. Then determine the target slope interval where the actual slope is located as the important slope interval. Further, if there is such an important slope interval among the target slope intervals corresponding to the target speed interval, then determine the corresponding target speed interval as the important speed interval.

[0040] Then calculate the second product of the first weight of each important speed interval and the second weight of the corresponding important speed interval. The larger the second product, the greater the risk of contact wire tension damage when the initial downhill speed of the tractor is within the corresponding important speed interval. Select the smallest second product from the second products, and determine the important speed interval corresponding to the smallest second product as the candidate speed interval. Finally, represent the actual moving speed with v 1 and select the minimum speed from the candidate speed intervals, which is represented by v 2 . Then the deceleration distance for the tractor to decelerate from v 1 to v 2 is (v 1 2 - v 2 2 ) / 2 * a, where a is the deceleration of the tractor. Subtract the deceleration distance from the distance between the current position of the tractor and the terrain of the second section to obtain the distance difference. Then divide the distance difference by the actual moving speed to obtain the duration during which the actual moving speed remains unchanged. Finally, add this duration to the current time to obtain the deceleration time node for the tractor to decelerate in advance. The tractor starts to decelerate at this deceleration time node, and finally the risk of contact wire tension damage when going downhill on the terrain of the second section is relatively small.

[0041] S105: When the actual tension value is less than the standard tension value, increase the traction speed of the tractor.

[0042] Specifically, if the actual tension value is less than the standard tension value, it indicates that the tension of the catenary during the current laying is relatively small. To ensure better laying quality, it is necessary to increase the tension of the catenary. Then, it is necessary to increase the traction speed of the tractor to increase the tension of the catenary. In an implementable embodiment of the present application, one implementation method is as follows: Based on the abnormal sway record of the catenary, when the catenary sways abnormally, obtain the first historical tension range where the catenary tension value on the tension pay-off reel in the historical tractor is located, count the first occurrence frequency of each first historical tension range, and select the third number of first historical tension ranges from each first historical tension range in descending order of the first occurrence frequency to determine the target tension range, that is, the tension range that is prone to abnormal sway under the influence of external forces. Further, obtain the wind speed range where the historical wind speed is located when the catenary sways abnormally and the catenary tension value is within a single target tension range, count the second occurrence frequency of each wind speed range, and select the fourth number of wind speed ranges from each wind speed range in descending order of the second occurrence frequency to determine the target wind speed range corresponding to the target tension range, that is, the wind speed range that is prone to abnormal sway of the catenary. Among them, the included angle between the direction of the historical wind speed and the historical laid catenary is the same as the included angle between the direction of the current actual wind speed and the current laid catenary. The abnormal sway record includes the tension value and the environmental wind speed when the catenary sways abnormally during the laying process by different tractors. The abnormal sway can be understood as the vibration amplitude of the catenary exceeding the preset amplitude threshold. In addition, during the laying of the catenary, abnormal sway will not only affect the laying quality but also pose a risk of catenary damage. It should be noted that the current actual wind speed and the involved wind direction are specifically obtained through an anemometer.

[0043] Furthermore, determine the third weight of each target tension range. The third weight is the ratio of the first occurrence frequency of each target tension range to the sum of the first occurrence frequencies of all target tension ranges. Then, determine the fourth weight of the target wind speed range corresponding to the target tension range. The fourth weight is the ratio of the second occurrence frequency of a single target wind speed range corresponding to the target tension range to the sum of the second occurrence frequencies of all target wind speed ranges corresponding to it. Next, when the actual wind speed is within the target wind speed range, determine the corresponding target wind speed range as the key wind speed range, and when there is a key wind speed range among the target wind speed ranges corresponding to the target tension range, determine the corresponding target tension range as the key tension range.

[0044] Further, calculate the third product of the third weight of each key tension interval and the fourth weight of the corresponding key wind speed interval. The larger the third product, the greater the likelihood of abnormal swaying occurring currently. Then, select the smallest third product from all the third products, and determine the key tension interval corresponding to this smallest third product as the reference tension interval. At the current actual wind speed, if the catenary tension value is within this reference tension interval, the likelihood of abnormal swaying is relatively small. Then, calculate the tension difference between the standard tension value and the actual tension value, match the speed adjustment amount corresponding to this tension difference according to the preset speed adjustment matching table, and then add this speed adjustment amount to the towing speed of the tractor to obtain the initial towing speed. Finally, if the standard tension value is within the reference tension interval, then determine the initial towing speed as the target towing speed, and increase the towing speed of the tractor to the target towing speed, which can not only verify the rationality of the standard tension value, but also avoid the problem of abnormal swaying of the catenary after adjusting the towing speed.

[0045] In other embodiments, when the current actual wind speed is less than the wind speed threshold, it indicates that the current wind speed has a relatively small impact on the swaying of the catenary. Then, if it is detected that the current catenary has abnormal swaying, determine the start swaying time of the catenary through the monitoring video of the camera, and screen out at least one real-time tension value between the start swaying time and the current time from the real-time tension values detected by the tension sensor in real time. Further, when the catenary in the historical laying has abnormal swaying, obtain the flatness interval where the section where the historical tractor moves is located, count the first occurrence quantity of each flatness interval, and select the fifth quantity of flatness intervals from each flatness interval in descending order of the first occurrence quantity to determine the target flatness interval, that is, the flatness interval that is likely to cause abnormal swaying of the catenary. Then, obtain the second historical tension interval where the catenary tension value is located when the catenary has abnormal swaying when the section where the historical tractor moves is within a single target flatness interval, count the second occurrence quantity of each second historical tension interval, and select the sixth quantity of second historical tension intervals from each second historical tension interval in descending order of the second occurrence quantity, and determine it as the target interval corresponding to the target flatness interval, that is, the tension interval that is likely to cause abnormal swaying of the catenary.

[0046] Further, determine the fifth weight of each target flatness interval and the sixth weight of the target interval corresponding to each target flatness interval. The fifth weight is the ratio of the first occurrence quantity of each target flatness interval to the sum of the first occurrence quantities of all target flatness intervals, and the sixth weight is the ratio of the second occurrence quantity of the single target interval corresponding to the target flatness interval to the sum of the second occurrence quantities of the corresponding all target intervals.

[0047] Further, if the target interval contains the real-time tension value, then determine the corresponding target interval as the reference interval. When there is a reference interval among the target intervals corresponding to the target flatness interval, determine the corresponding target flatness interval as the reference flatness interval. Then, if the reference flatness interval is within the preset abnormal flatness interval, determine the corresponding reference flatness interval as the final flatness interval. Among them, the abnormal flatness interval is the interval reflecting the poor flatness of the railway track. Calculate the fourth product of the fifth weight of each final flatness interval and the sixth weight of the corresponding reference interval. The larger the fourth product, when the flatness of the railway track is within the corresponding final flatness interval, the more likely it is to cause abnormal swaying of the catenary, and the more likely the corresponding railway track has problems with poor flatness. Then, according to the fourth product, determine the inspection order of the corresponding track position. The larger the fourth product, the higher the corresponding inspection order. Finally, send each inspection order to the terminal of the railway inspector to timely remind the railway inspector to conduct flatness inspections on the corresponding track positions. At the same time, for the abnormal swaying of the catenary, send a reminder to increase the traction speed of the tractor. Among them, the terminal can be a smart phone.

[0048] In another embodiment, if the current catenary does not show abnormal swaying, then obtain at least one catenary tension and track flatness from the start laying time of the catenary to the current time. Determine the target interval where the catenary tension is located as the interval to be concerned, and determine the target flatness interval where the track flatness is located as the flatness interval to be concerned. Calculate the sum of the products of the fifth weight of each flatness interval to be concerned and the sixth weight of the corresponding interval to be concerned. If the sum result is greater than the preset threshold, it indicates that the overall possibility of damage to the catenary caused by swaying during the entire laying process is relatively large. Then, send a targeted warning message.

[0049] The implementation principle of the method for laying a power supply contact line for a high-speed railway in the embodiment of the present application is as follows: if the actual tension value is greater than the standard tension value, it means that the tension value of the power supply contact line is too large during the laying process of the tractor, which is easy to accelerate the metal fatigue of the contact line and shorten the service life. Then, the tension of the contact line is reduced by reducing the traction speed of the tractor to reduce the tension during the traction, thereby reducing the tension value of the contact line. If the actual tension value is equal to the standard tension value, since the speed of the tractor will increase suddenly when going downhill, the tension of the power supply contact line during laying will increase instantly, which is easy to cause the power supply contact line to be over-tightened and cause damage. Therefore, when the terrain of the second section is a downhill terrain, the tractor needs to be slowed down in advance; if the actual tension value is less than the standard tension value, it means that the tension value of the power supply contact line is too small during the laying process of the tractor, which affects the straightness of the contact line during the laying process. Then, the tension of the contact line is increased by increasing the traction speed of the tractor to increase the tension during the traction, thereby increasing the tension value of the contact line, thereby linking with the traction speed adjustment of the tractor to dynamically adjust the tension of the contact line and improve the laying quality of the power supply contact line.

[0050] The following is a system embodiment of the present application, which can be used to execute the method embodiment of the present application. For details not disclosed in the system embodiment of the present application, please refer to the method embodiment of the present application.

[0051] See also Figure 2 , is a schematic diagram of the structure of the high-speed railway power supply contact line laying system provided in the embodiment of the present application. The system applied to the high-speed railway power supply contact line laying system can be realized as all or part of the device through software, hardware or a combination of both. The system includes a terrain acquisition module 11, a tension determination module 12, a first speed regulation module 13, a second speed regulation module 14 and a third speed regulation module 15.

[0052] A terrain acquisition module 11, used to acquire the terrain of the first section where the power supply contact line is to be laid; The tension determination module 12 is used to determine the standard tension value of the power supply contact wire according to the terrain of the first road section, and obtain the actual tension value on the tension pay-off frame in the tractor; A first speed regulating module 13 is used to compare the actual tension value with the standard tension value, and when the actual tension value is greater than the standard tension value, reduce the traction speed of the tractor; The second speed regulating module 14 is used for determining a deceleration time node for the tractor to decelerate in advance when the actual tension value is equal to the standard tension value, if the second road section terrain is a downhill terrain, and reducing the traction speed of the tractor based on the deceleration time node, and the second road section terrain is a section terrain of a section below the first road section terrain during the laying of the power supply contact line; The third speed regulating module 15 is used to increase the traction speed of the tractor when the actual tension value is less than the standard tension value.

[0053] Optionally, the second speed regulation module 14 is specifically configured to: Obtain the historical downhill initial speed at which the catenary was tightened and damaged during the historical tractor's downhill, determine the historical speed intervals where each historical downhill initial speed is located, and count the first occurrence times of each historical speed interval. The historical tractor and the tractor are tractors of the same type; Select the first number of historical speed intervals from each historical speed interval in descending order of the first occurrence times and determine them as target speed intervals; Obtain the historical slope interval where the historical slope of the catenary was tightened and damaged during the historical tractor's downhill when the downhill initial speed is within a single target speed interval, count the second occurrence times of each historical slope interval, and select the second number of historical slope intervals from each historical slope interval in descending order of the second occurrence times and determine them as the target slope intervals corresponding to the single target speed interval; Determine the first weight of each target speed interval and the second weight of the target slope interval corresponding to each target speed interval. The first weight is the ratio of the first occurrence time of each target speed interval to the sum of the first occurrence times of all target speed intervals, and the second weight is the ratio of the second occurrence time of the single target slope interval corresponding to the target speed interval to the sum of the second occurrence times of all corresponding target slope intervals; Determine the deceleration time node for the tractor to decelerate in advance according to the first weight and the corresponding second weight.

[0054] Optionally, the second speed regulation module 14 is specifically configured to: Obtain the current actual moving speed of the tractor and the actual slope corresponding to the second section of terrain. If the actual moving speed is within the target speed interval, determine the corresponding target speed interval as the key speed interval; Calculate the first product of the first weight of the key speed interval and the second weights of the corresponding target slope intervals, and sum up the first products to obtain the corresponding sum of products; If the sum of products is greater than the preset first threshold, determine the target slope interval where the actual slope is located as the important slope interval. If there is an important slope interval among the target slope intervals corresponding to the target speed interval, determine the corresponding target speed interval as the important speed interval; Calculate the second product of the first weight of each important speed interval and the second weight of the corresponding important slope interval, select the smallest second product from the second products, and determine the important speed interval corresponding to the smallest second product as the candidate speed interval; Determine the deceleration time node for the tractor to decelerate in advance according to the candidate speed interval, the actual moving speed, and the distance between the current position of the tractor and the second section of terrain.

[0055] Optionally, the third speed regulation module 15 is specifically configured to: When the actual tension value is less than the standard tension value, when the catenary shakes abnormally, obtain the first historical tension range in which the catenary tension value on the tension pay-off frame of the historical tractor is located, count the first occurrence frequency of each first historical tension range, and select the third number of first historical tension ranges from each first historical tension range in descending order of the first occurrence frequency to determine the target tension range; Obtain the wind speed range in which the historical wind speed is located when the catenary shakes abnormally and the catenary tension value is in a single target tension range, count the second occurrence frequency of each wind speed range, and select the fourth number of wind speed ranges from each wind speed range in descending order of the second occurrence frequency to determine the target wind speed range corresponding to the single target tension range; Determine the third weight of each target tension range and the fourth weight of the target wind speed range corresponding to each target tension range. The third weight is the ratio of the first occurrence frequency of each target tension range to the sum of the first occurrence frequencies of all target tension ranges, and the fourth weight is the ratio of the second occurrence frequency of the single target wind speed range corresponding to the target tension range to the sum of the second occurrence frequencies of the corresponding all target wind speed ranges; Based on the current actual wind speed, the third weight, and the corresponding fourth weight, increase the traction speed of the tractor.

[0056] Optionally, the third speed regulation module 15 is specifically configured to: When the current actual wind speed is in the target wind speed range, determine the corresponding target wind speed range as the key wind speed range, and when there is a key wind speed range among the target wind speed ranges corresponding to the target tension range, determine the corresponding target tension range as the key tension range; Calculate the third product of the third weight of each key tension range and the fourth weight of the corresponding key wind speed range, select the smallest third product from each third product, and determine the key tension range corresponding to the smallest third product as the reference tension range; Calculate the tension difference between the standard tension value and the actual tension value, and determine the initial traction speed of the tractor according to the tension difference; If the standard tension value is within the reference tension range, determine the initial traction speed as the target traction speed, and increase the traction speed of the tractor to the target traction speed.

[0057] Optionally, as Figure 3 shown, the system further includes a leveling inspection module 16, which is specifically configured to: When the current actual wind speed is less than the preset wind speed threshold, if the current catenary shakes abnormally, determine the start shaking time of the catenary, and determine at least one real-time tension value between the start shaking time and the current time; Obtain the flatness interval where the section passed by the historical tractor is located when the power supply catenary shakes abnormally during historical laying, count the first occurrence quantity of each flatness interval, and select the fifth-quantity flatness interval from each flatness interval in descending order of the first occurrence quantity to determine the target flatness interval; Obtain the second historical tension interval where the catenary tension value is located when the catenary shakes abnormally while the section passed by the historical tractor is within a single target flatness interval, count the second occurrence quantity of each second historical tension interval, and select the sixth-quantity second historical tension interval from each second historical tension interval in descending order of the second occurrence quantity, and determine it as the target interval corresponding to the single target flatness interval; Determine the fifth weight of each target flatness interval and the sixth weight of the target interval corresponding to each target flatness interval. The fifth weight is the ratio of the first occurrence quantity of each target flatness interval to the sum of the first occurrence quantities of all target flatness intervals, and the sixth weight is the ratio of the second occurrence quantity of the single target interval corresponding to the target flatness interval to the sum of the second occurrence quantities of all corresponding target intervals; Based on each real-time tension value, the fifth weight, and the corresponding sixth weight, conduct track flatness inspection on the high-speed railway.

[0058] Optionally, the flatness inspection module 16 is specifically used for: If the target interval contains the real-time tension value, determine the corresponding target interval as the reference interval. When there is a reference interval among the target intervals corresponding to the target flatness interval, determine the corresponding target flatness interval as the reference flatness interval; If the reference flatness interval is within the preset abnormal flatness interval, determine the corresponding reference flatness interval as the final flatness interval, and calculate the fourth product of the fifth weight of each final flatness interval and the sixth weight of the corresponding reference interval; According to the fourth product, determine the inspection order of the corresponding track position and send each inspection order to the terminal of the railway inspection personnel. The larger the fourth product, the earlier the corresponding inspection order. The track position is the position of the tractor corresponding to the real-time tension value.

[0059] It should be noted that when the high-speed railway power supply catenary laying system provided in the above embodiment executes the high-speed railway power supply catenary laying method, only the division of the above functional modules is used for illustration. In actual application, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the high-speed railway power supply catenary laying system provided in the above embodiment and the high-speed railway power supply catenary laying method embodiment belong to the same concept. The implementation process is detailed in the method embodiment and will not be repeated here.

[0060] The embodiment of the present application also discloses a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, it adopts a high-speed railway power supply catenary laying method of the above embodiment.

[0061] Among them, the computer program can be stored in a computer-readable medium. The computer program includes computer program code. The computer program code can be in the form of source code, object code, executable file or some middleware form, etc. The computer-readable medium includes any entity or device that can carry the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the computer-readable medium includes but is not limited to the above components.

[0062] Among them, through this computer-readable storage medium, a high-speed railway power supply catenary laying method of the above embodiment is stored in the computer-readable storage medium, and is loaded and executed on the processor to facilitate the storage and application of the above method.

[0063] The embodiment of the present application also discloses an electronic device. A computer program is stored in the computer-readable storage medium. When the computer program is loaded and executed by the processor, it adopts the above high-speed railway power supply catenary laying method.

[0064] Among them, the electronic device can be a desktop computer, a laptop computer or a cloud server and other electronic devices. The electronic device includes but is not limited to a processor and a memory. For example, the electronic device can also include input and output devices, network access devices, and a bus, etc.

[0065] Among them, the processor can be a central processing unit (CPU). Of course, according to the actual usage, other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. can also be used. The general-purpose processor can be a microprocessor or any conventional processor, etc. The present application does not limit this.

[0066] Among them, the memory can be an internal storage unit of the electronic device. For example, the hard disk or memory of the electronic device, or it can also be an external storage device of the electronic device. For example, the plug-in hard disk, smart media card (SMC), secure digital card (SD), or flash card (FC), etc. equipped on the electronic device. And the memory can also be a combination of the internal storage unit and the external storage device of the electronic device. The memory is used to store computer programs and other programs and data required by the electronic device. The memory can also be used to temporarily store the data that has been output or will be output. The present application does not limit this.

[0067] Among them, through this electronic device, a method for laying a power supply catenary for high-speed railways in the above embodiment is stored in the memory of the electronic device, and is loaded and executed on the processor of the electronic device for convenient use.

[0068] The above are only exemplary embodiments of the present disclosure and should not be used to limit the scope of the present disclosure. That is, any equivalent changes and modifications made in accordance with the teachings of the present disclosure still fall within the scope covered by the present disclosure. The present application aims to cover any variations, uses, or adaptive changes of the present disclosure. These variations, uses, or adaptive changes follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not recorded in the present disclosure. The description and embodiments are only regarded as exemplary, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A method for laying a high-speed railway power supply contact line, characterized in that: The method comprises: Obtaining the terrain of the first section of the current power supply contact line to be laid; Determine the standard tension value of the power supply contact wire according to the terrain of the first road section, and obtain the actual tension value on the tension pay-off stand in the tractor; Comparing the actual tension value with the standard tension value, and reducing the traction speed of the tractor when the actual tension value is greater than the standard tension value; When the actual tension value is equal to the standard tension value, if the second road section terrain is a downhill terrain, a deceleration time node for the tractor to decelerate in advance is determined, and based on the deceleration time node, the traction speed of the tractor is reduced, and the second road section terrain is a section of the terrain below the first road section terrain during the laying of the power supply contact line; When the actual tension value is less than the standard tension value, the traction speed of the tractor is increased.

2. The method for laying high-speed railway power supply contact wire according to claim 1, characterized in that: The step of determining the deceleration time node at which the tractor decelerates in advance specifically includes: Obtaining historical downhill initial speeds of the tractor that have experienced contact line tension damage when going downhill, and determining the historical speed intervals in which each of the historical downhill initial speeds is located, and counting the number of first occurrences of each of the historical speed intervals, wherein the historical tractor and the tractor are of the same type; Selecting a first number of historical speed intervals from each of the historical speed intervals in descending order of the first occurrence times as target speed intervals; Obtaining the historical slope intervals of the historical downhill slopes where the contact line tension damage occurred when the tractor historically went downhill when the initial downhill speed was in the single target speed interval, counting the second occurrence times of each of the historical slope intervals, and selecting a second number of historical slope intervals from each of the historical slope intervals in descending order of the second occurrence times, and determining them as the target slope intervals corresponding to the single target speed interval; Determine a first weight for each of the target speed intervals, and determine a second weight for the target gradient interval corresponding to each of the target speed intervals, wherein the first weight is a ratio of a first occurrence number of each target speed interval to a sum of first occurrence numbers of all target speed intervals, and the second weight is a ratio of a second occurrence number of a single target gradient interval corresponding to the target speed interval to a sum of second occurrence numbers of all corresponding target gradient intervals; A deceleration time node for the tractor to decelerate in advance is determined according to the first weight and the corresponding second weight.

3. The method for laying high-speed railway power supply contact wire according to claim 2, characterized in that: The determining, according to the first weight and the corresponding second weight, a deceleration time node at which the tractor decelerates in advance specifically includes: Acquire the current actual moving speed of the tractor and the actual slope corresponding to the terrain of the second road section, and if the actual moving speed is within a target speed interval, determine the corresponding target speed interval as a key speed interval; Calculating a first product of a first weight of the key speed interval and a second weight of each corresponding target gradient interval, and summing each of the first products to obtain a corresponding sum of the products; If the sum of the products is greater than a preset first threshold, the target slope interval in which the actual slope is located is determined as an important slope interval, and if the important slope interval exists in each target slope interval corresponding to the target speed interval, the corresponding target speed interval is determined as an important speed interval; Calculating a second product of the first weight of each of the important speed intervals and the second weight of the corresponding important slope interval, selecting a minimum second product from the second products, and determining the important speed interval corresponding to the minimum second product as the speed interval to be selected; A deceleration time node for the tractor to decelerate in advance is determined according to the to-be-selected speed interval, the actual moving speed, and the distance between the current position of the tractor and the terrain of the second road section.

4. The method for laying high-speed railway power supply contact wire according to claim 1, characterized in that: When the actual tension value is less than the standard tension value, increasing the traction speed of the tractor specifically includes: When the actual tension value is less than the standard tension value, the first historical tension interval of the contact line tension value on the tension pay-off frame in the historical tractor when the contact line shakes abnormally is obtained, the first occurrence frequency of each of the first historical tension intervals is counted, and the third number of first historical tension intervals are selected from each of the first historical tension intervals in descending order of the first occurrence frequency to be determined as the target tension interval; Obtaining the wind speed interval in which the historical wind speed is located when the contact line shakes abnormally and the contact line tension value is in a single target tension interval, counting the second occurrence frequency of each wind speed interval, and selecting a fourth number of wind speed intervals from each wind speed interval in descending order of the second occurrence frequency to determine as the target wind speed interval corresponding to the single target tension interval; Determine a third weight for each of the target tension intervals, and determine a fourth weight for the target wind speed interval corresponding to each of the target tension intervals, wherein the third weight is a ratio of a first occurrence frequency of each target tension interval to a sum of first occurrence frequencies of all target tension intervals, and the fourth weight is a ratio of a second occurrence frequency of a single target wind speed interval corresponding to the target tension interval to a sum of second occurrence frequencies of all corresponding target wind speed intervals; The traction speed of the tractor is increased based on the current actual wind speed, the third weight and the corresponding fourth weight.

5. The method for laying high-speed railway power supply contact wire according to claim 4, characterized in that: The increasing the traction speed of the tractor based on the current actual wind speed, the third weight and the corresponding fourth weight specifically includes: When the current actual wind speed is within the target wind speed interval, the corresponding target wind speed interval is determined as the key wind speed interval, and when the key wind speed interval exists in each target wind speed interval corresponding to the target tension interval, the corresponding target tension interval is determined as the key tension interval; Calculate the third product of the third weight of each of the key tension intervals and the fourth weight of the corresponding key wind speed interval, select the minimum third product from each of the third products, and determine the key tension interval corresponding to the minimum third product as the reference tension interval; Calculating a tension difference value obtained by subtracting the actual tension value from the standard tension value, and determining an initial traction speed of the tractor according to the tension difference value; If the standard tension value is within the reference tension range, the initial traction speed is determined as a target traction speed, and the traction speed of the tractor is increased to the target traction speed.

6. The method for laying high-speed railway power supply contact wire according to claim 1, characterized in that: The method further comprises: When the current actual wind speed is less than the preset wind speed threshold, if the current contact line shakes abnormally, determine the start time of the contact line shaking, and determine at least one real-time tension value between the start time of shaking and the current time; Obtain the flatness interval of the road section where the historical tractor moved when the power supply contact line shook abnormally during historical laying, count the first occurrence number of each flatness interval, and select the fifth number of flatness intervals from each of the flatness intervals in descending order of the first occurrence number to determine as the target flatness interval; Obtaining the second historical tension interval in which the contact line tension value is located when the historical section where the tractor moves is within a single target flatness interval and the contact line shakes abnormally, counting the second occurrence number of each second historical tension interval, and selecting the sixth number of second historical tension intervals from each of the second historical tension intervals in descending order of the second occurrence number, and determining them as the target interval corresponding to the single target flatness interval; Determine a fifth weight for each target flatness interval, and determine a sixth weight for the target interval corresponding to each target flatness interval, wherein the fifth weight is a ratio of a first occurrence number of each target flatness interval to a sum of first occurrence numbers of all target flatness intervals, and the sixth weight is a ratio of a second occurrence number of a single target interval corresponding to the target flatness interval to a sum of second occurrence numbers of all corresponding target intervals; Based on each of the real-time tension values, the fifth weight and the corresponding sixth weight, a track flatness inspection is performed on the high-speed railway.

7. The method for laying high-speed railway power supply contact wire according to claim 6, characterized in that: The performing track flatness inspection on the high-speed railway based on each of the real-time tension values, the fifth weight and the corresponding sixth weight specifically includes: If the target interval contains the real-time tension value, the corresponding target interval is determined as the reference interval, and when the reference interval exists in each target interval corresponding to the target flatness interval, the corresponding target flatness interval is determined as the reference flatness interval; If the reference flatness interval is in the preset abnormal flatness interval, the corresponding reference flatness interval is determined as the final flatness interval, and a fourth product of the fifth weight of each final flatness interval and the sixth weight of the corresponding reference interval is calculated; According to the fourth product, the inspection order of the corresponding track position is determined, and each inspection order is sent to the terminal of the railway inspection personnel. The larger the fourth product is, the earlier the corresponding inspection order is. The track position is the position of the traction vehicle corresponding to the real-time tension value.

8. A high-speed railway power supply contact line laying system, characterized in that: include: A terrain acquisition module (11) is used to acquire the terrain of the first road section where the power supply contact line is to be laid; A tension determination module (12) is used to determine a standard tension value of the power supply contact wire according to the terrain of the first road section, and obtain an actual tension value on a tension pay-off frame in the tractor; A first speed regulating module (13) is used to compare the actual tension value with the standard tension value, and reduce the traction speed of the tractor when the actual tension value is greater than the standard tension value; A second speed regulating module (14) is used for determining a deceleration time node for the tractor to decelerate in advance when the actual tension value is equal to the standard tension value, if the second road section terrain is a downhill terrain, and reducing the traction speed of the tractor based on the deceleration time node, wherein the second road section terrain is a section of the terrain below the first road section terrain during the laying of the power supply contact line; The third speed regulating module (15) is used to increase the traction speed of the tractor when the actual tension value is less than the standard tension value.

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

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, characterized in that: When the processor loads and executes the computer program, the method according to any one of claims 1 to 7 is implemented.

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