Track dynamic deformation monitoring system and monitoring method thereof

Abstract

The present invention belongs to the technical field of track monitoring, and specifically relates to a track dynamic deformation monitoring system and a monitoring method thereof, comprising: setting a track monitoring point at each preset fixed distance on the double-side tracks, and symmetrically fixing sensor equipment on the rail waist parts of the double-side tracks corresponding to the track monitoring points; respectively detecting the deformation amount of the track monitoring point in the vertical direction, and the deformation amount of the track monitoring point in the horizontal plane perpendicular to the track direction by the sensor equipment, and when the sensor equipment receives a data collection command from the track monitoring server, respectively sending the collected track monitoring data to the track monitoring server; the track monitoring server performs calculation processing on the track monitoring data, and when the track deformation reaches a dangerous level, sends an alarm message to relevant personnel. The present invention can monitor the deformation of the track in real time and directly without relying on manual labor.

Description

Technical Field

[0001] The invention belongs to the technical field of track monitoring, and in particular relates to a track dynamic deformation monitoring system and a monitoring method thereof. Background Art

[0002] With the rapid development of infrastructure construction, there are more and more projects under the railway. The underpass construction area intersects with the railway in three dimensions. The underpass construction causes great disturbance to the railway roadbed. In severe cases, it may also cause track deformation and track line settlement, threatening the operational safety of the railway. Therefore, it is very necessary to monitor the occurrence of dynamic deformation of the track and send warning messages to people in time. The prior art usually adopts two methods to monitor the dynamic deformation of the track during the underpass construction. One method is to regularly observe the deformation of the track, bridge piers and roadbed by manual observation. When problems affecting driving safety are found, the construction personnel are reminded to make timely rectifications. However, the disadvantage of this method is that the labor intensity of the personnel is high, and it is impossible to achieve real-time monitoring and timely detection of problems. Another method is to install corresponding displacement sensors on the roadbed or bridge piers, and regularly observe deformation at pre-set time intervals. However, the disadvantage of this method is that the deformation of the track cannot be directly monitored, and the stability and reliability of the equipment need to be improved. Therefore, the present invention proposes a track dynamic deformation monitoring system and a monitoring method thereof to solve the above technical problems. Summary of the invention

[0003] The present invention arranges sensor devices at the rail waist of the double-side tracks to collect the deformation of the tracks in real time, and selects relay sensor devices from different sensor devices to ensure reliable transmission of the track monitoring data of the sensor devices. At the same time, the track monitoring data is calculated and processed by the track monitoring server to determine the severity of the track deformation. This aims to solve the problem in the prior art that track deformation needs to be monitored manually and that track deformation cannot be directly monitored.

[0004] In order to achieve the above-mentioned object of the invention, a method for monitoring track dynamic deformation is provided as follows, which mainly includes the following steps:

[0005] A track monitoring point is set at each preset fixed distance on the double-side tracks, and sensor equipment is symmetrically fixed at the rail waist of the double-side tracks corresponding to the track monitoring points, and the sensor equipment includes a vertical displacement sensor device arranged on the outer side of the track along the longitudinal direction of the track, and a lateral displacement sensor device arranged on the inner side of the track along the longitudinal direction of the track;

[0006] The vertical displacement sensor device detects the deformation of the track monitoring point in the vertical direction in real time, and the lateral displacement sensor device detects the deformation of the track monitoring point in the horizontal plane in a direction perpendicular to the track direction in real time, and the vertical displacement sensor device and the lateral displacement sensor device send the track monitoring data collected by themselves to the track monitoring server when receiving a data collection command from the track monitoring server;

[0007] After receiving the track monitoring data sent by the vertical displacement sensor device and the lateral displacement sensor, the track monitoring server calculates and processes the track monitoring data, and when the track deformation reaches a dangerous level, the track monitoring server sends an alarm message to relevant personnel.

[0008] As a preferred technical solution of the present invention, the sensor device sends the track monitoring data collected by itself to the track monitoring server, including the following steps:

[0009] Selecting one of the sensor devices as a relay sensor device from among all the sensor devices;

[0010] The track monitoring server sends the data collection command, wherein the data collection command includes a communication address of the sensor device, to obtain the track monitoring data of a corresponding sensor device;

[0011] The relay sensor device receives the data collection command, and determines whether the communication address in the data collection command is consistent with its own communication address. If they are consistent, the relay sensor device sends the track monitoring data collected by itself to the track monitoring server. If they are inconsistent, the relay sensor device stores the track monitoring data sent to the track monitoring server by the sensor device corresponding to the communication address in the data collection command, and the relay sensor device records the delay time from receiving the data collection command to receiving the track monitoring data.

[0012] The track monitoring server performs calculation processing on the track monitoring data when receiving the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command, and sends a query command to the relay sensor device when not receiving the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command;

[0013] The relay sensor device receives the query command, and simultaneously sends the track monitoring data of the sensor device corresponding to the communication address in the data collection command and the delay time previously stored to the track monitoring server.

[0014] As a preferred technical solution of the present invention, when the track monitoring server fails to receive the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command, the track monitoring server further includes the following steps:

[0015] The track monitoring server sends a forwarding command to the relay sensor device, wherein the forwarding command includes the same communication address as that in the data collection command;

[0016] The relay sensor device continues to send the forwarding command to the sensor device corresponding to the communication address in the forwarding command, and the sensor device sends the track monitoring data collected by itself to the track monitoring server.

[0017] As a preferred technical solution of the present invention, the track monitoring data is calculated and processed, including the following steps:

[0018] Acquire the track monitoring data collected by each track monitoring point on a preset track section, and also acquire the distance value of each track monitoring point in the track direction;

[0019] The three-dimensional coordinate system is established by taking the first track monitoring point in the track direction as the origin O of the three-dimensional coordinate system, taking the vertical upward direction as the positive direction of the Z coordinate axis, taking the track direction as the positive direction of the Y coordinate axis, and taking the direction on the horizontal plane that is perpendicular to the track direction and close to the other side of the track as the positive direction of the X coordinate axis;

[0020] In the three-dimensional coordinate system, three-dimensional coordinate points corresponding to the track monitoring data of each track monitoring point in the track direction are respectively established;

[0021] In the three-dimensional coordinate system, a first fitting curve is generated based on a plurality of different three-dimensional coordinate points, and the maximum value and the minimum value on the first fitting curve are respectively determined, and the three-dimensional coordinate values ​​of the maximum value and the minimum value on the first fitting curve are respectively obtained, and the following tanθ value is calculated according to the three-dimensional coordinate values ​​of the maximum value and the minimum value on the first fitting curve. When the tanθ value is greater than a preset threshold value, it is determined that the deformation of a track section reaches a dangerous level:

[0022]

[0023] Among them, (x1, y1, z1) is the three-dimensional coordinate value of the minimum value on the first fitting curve, and (x2, y2, z2) is the three-dimensional coordinate value of the maximum value on the first fitting curve.

[0024] As a preferred technical solution of the present invention, the track monitoring data is calculated and processed, including the following steps:

[0025] Acquire the track monitoring data collected by each track monitoring point on a preset track section, and also acquire the distance value of each track monitoring point in the track direction;

[0026] The three-dimensional coordinate system is established by taking the first track monitoring point in the track direction as the origin O of the three-dimensional coordinate system, taking the vertical upward direction as the positive direction of the Z coordinate axis, taking the track direction as the positive direction of the Y coordinate axis, and taking the direction on the horizontal plane that is perpendicular to the track direction and close to the other side of the track as the positive direction of the X coordinate axis;

[0027] In the three-dimensional coordinate system, three-dimensional coordinate points corresponding to the track monitoring data of each track monitoring point in the track direction are respectively established;

[0028] In the three-dimensional coordinate system, a plurality of different three-dimensional coordinate points are projected onto the coordinate plane XOZ, and a second fitting curve is generated based on the projection points of the plurality of different three-dimensional coordinate points. When the second fitting curve forms a closed figure, the area of ​​the closed figure is calculated. When the second fitting curve cannot form a closed figure, the area of ​​the closed figure formed by the second fitting curve and the X-coordinate axis and the Y-coordinate axis is calculated. When the area is greater than a preset threshold, it is determined that the deformation of a track section has reached a dangerous level.

[0029] The present invention also provides a track dynamic deformation monitoring system, which mainly includes the following modules:

[0030] The equipment module is used to set a track monitoring point at each preset fixed distance on the double-side tracks, and symmetrically fix the sensor equipment on the rail waist of the double-side tracks corresponding to the track monitoring points, and the sensor equipment includes a vertical displacement sensor equipment arranged on the outer side of the track along the longitudinal direction of the track, and a lateral displacement sensor equipment arranged on the inner side of the track along the longitudinal direction of the track;

[0031] A monitoring module is used to detect the deformation of the track monitoring point in the vertical direction in real time through a vertical displacement sensor device, and to detect the deformation of the track monitoring point in a horizontal plane in a direction perpendicular to the track direction through a lateral displacement sensor device, and the vertical displacement sensor device and the lateral displacement sensor device send the collected track monitoring data to the track monitoring server through a wireless network and a 4G / 5G network;

[0032] The analysis module is used to calculate and process the track monitoring data after the track monitoring server receives the track monitoring data sent by the vertical displacement sensor device and the lateral displacement sensor, and send an alarm message to relevant personnel through the track monitoring server when the track deformation reaches a dangerous level.

[0033] Compared with the prior art, the beneficial effects of the present invention are at least as follows:

[0034] 1. The present invention first sets a track monitoring point at each preset fixed distance on the double-side tracks, and symmetrically fixes the sensor equipment on the rail waist of the double-side tracks corresponding to the track monitoring points; secondly, the sensor equipment detects the deformation of the track monitoring point in the vertical direction and the deformation of the track monitoring point in the horizontal plane perpendicular to the track direction, and when the sensor equipment receives the data collection command from the track monitoring server, it sends the collected track monitoring data to the track monitoring server; finally, the track monitoring server calculates and processes the track monitoring data, and sends an alarm message to relevant personnel when the track deformation reaches a dangerous level;

[0035] 2. The present invention solves the problem in the prior art that track deformation needs to be monitored manually and that track deformation cannot be directly monitored. The present invention collects track monitoring data in real time through sensor equipment, which can not only ensure the reliable transmission of track monitoring data, but also detect faults in sensor equipment. At the same time, the present invention can also quickly obtain analysis results of track deformation and promptly alert relevant personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A flow chart of the steps of a method for monitoring track dynamic deformation according to the present invention;

[0037] Figure 2 The present invention is a structural diagram of a track dynamic deformation monitoring system. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script.

[0040] The inventors have proposed Figure 1 A track dynamic deformation monitoring method is shown, which is mainly implemented by executing the following steps:

[0041] Step 1: a track monitoring point is set at each preset fixed distance on the two-side tracks, and sensor equipment is symmetrically fixed on the rail waist of the two-side tracks corresponding to the track monitoring points, wherein the sensor equipment includes a vertical displacement sensor device arranged on the outer side of the track along the longitudinal direction of the track, and a lateral displacement sensor device arranged on the inner side of the track along the longitudinal direction of the track;

[0042] Step 2: the vertical displacement sensor device detects the deformation of the track monitoring point in the vertical direction in real time, and the lateral displacement sensor device detects the deformation of the track monitoring point in the horizontal plane in a direction perpendicular to the track direction in real time, and the vertical displacement sensor device and the lateral displacement sensor device send the track monitoring data collected by themselves to the track monitoring server when receiving the data collection command from the track monitoring server;

[0043] Step 3: After receiving the track monitoring data sent by the vertical displacement sensor device and the lateral displacement sensor, the track monitoring server calculates and processes the track monitoring data, and when the track deformation reaches a dangerous level, the track monitoring server sends an alarm message to relevant personnel;

[0044] Specifically, the inventors found that the prior art usually adopts two methods to monitor the dynamic deformation of the track during the underpass construction. One method is to use manual observation to regularly observe the deformation of the track, bridge piers and roadbed. When problems affecting driving safety are found, the construction personnel are reminded to make timely rectifications. However, the disadvantage of this method is that the labor intensity of the personnel is high, and it is not possible to achieve real-time monitoring and timely detection of problems. Another method is to install corresponding displacement sensors on the roadbed or bridge piers, and regularly observe deformation at pre-set time intervals. However, the disadvantage of this method is that the deformation of the track cannot be directly monitored, and the stability and reliability of the equipment need to be improved. In order to solve the above technical problems, the above steps 1 to 3 are proposed, wherein the above sensor equipment is fixed based on the dual means of magnetic principle and adhesive, and the fixed sensor equipment does not affect driving safety, and multiple lateral measurement displacement sensor devices are combined in parallel, and multiple vertical measurement displacement sensor devices are combined in series. Each sensor device works alone, and a failure of one sensor device will not affect the normal operation of other sensor devices. At the same time, the sensor device is not affected by rain, snow, lighting conditions, time period, etc., and monitors the track deformation in real time to ensure the continuity and integrity of the track monitoring data.

[0045] Furthermore, the sensor device sends the track monitoring data collected by itself to the track monitoring server, including the following steps:

[0046] The first step is to select one of the above sensor devices as a relay sensor device from among all the above sensor devices;

[0047] Step 2: the track monitoring server sends the data collection command, which includes a communication address of the sensor device, to obtain the track monitoring data of a corresponding sensor device;

[0048] Step 3: The relay sensor device receives the data collection command and determines whether the communication address in the data collection command is consistent with its own communication address. If they are consistent, the relay sensor device sends the track monitoring data collected by itself to the track monitoring server. If they are inconsistent, the relay sensor device stores the track monitoring data sent to the track monitoring server by the sensor device corresponding to the communication address in the data collection command, and the relay sensor device records the delay time from receiving the data collection command to receiving the track monitoring data.

[0049] Step 4: When the track monitoring server receives the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command, it performs calculation processing on the track monitoring data; when the track monitoring server does not receive the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command, it sends a query command to the relay sensor device;

[0050] Step 5: The relay sensor device receives the query command and sends the track monitoring data of the sensor device corresponding to the communication address in the data collection command and the delay time stored previously to the track monitoring server;

[0051] Specifically, in the first step to the fifth step, first, one is selected from different sensor devices and used as a relay sensor device. The relay sensor device can not only record its own track monitoring data, but also record the track monitoring data sent to the track monitoring server by other sensor devices, as well as the delay time of other sensor devices. Then, when the track monitoring server needs to collect track monitoring data, it can broadcast and send a data collection command to specify the sensor device that needs to collect track monitoring data. Secondly, after receiving the data collection command, the relay sensor device determines whether the track monitoring server wants to collect its own track monitoring data. If so, it sends its own track monitoring data to the track monitoring server. If not, it implements the monitoring function for other sensor devices, records the track monitoring data of other sensor devices, as well as the delay time. When the track monitoring server still does not receive the track monitoring data of a specific sensor device after a period of time, it sends a query command to the relay sensor device. When the track monitoring data of the specific sensor device is received, the severity of the track deformation is analyzed. Finally, the relay sensor device sends the track monitoring data and delay time of the specific sensor device previously recorded to the track monitoring server. This can avoid the track monitoring server from determining that a fault has occurred when the delay time of the specific sensor device has not arrived. At the same time, when the delay time has passed and the track monitoring server has not received the track monitoring data, it can be determined that the specific sensor device has failed. At this time, the track monitoring server can also receive the latest monitoring data of the specific sensor device and use it for calculation processing. The problem of being unable to analyze the severity of the track deformation due to the failure of a single sensor device will not occur.

[0052] Furthermore, when the track monitoring server fails to receive the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command, the track monitoring server further includes the following steps:

[0053] The first step is that the track monitoring server sends a forwarding command to the relay sensor device, wherein the forwarding command includes the same communication address as that in the data collection command;

[0054] Step 2: the relay sensor device continues to send the forwarding command to the sensor device corresponding to the communication address in the forwarding command, and the sensor device sends the track monitoring data collected by itself to the track monitoring server;

[0055] Specifically, in the first step and the second step above, when the track monitoring server still has not received the track monitoring data from a specific sensor device after a period of time, it can also send a forwarding command to the relay sensor device so that the relay sensor device can communicate with the specific sensor device, so that the specific sensor device can send the track monitoring data collected by itself to the track monitoring server, thereby continuing the calculation and processing. When the track monitoring server still cannot receive the track monitoring data from the specific sensor device, the track monitoring server determines that the specific sensor device has failed, and promptly arranges technicians to conduct on-site inspection and repair. By selecting a relay sensor device from different sensor devices, the relay sensor device can be randomly selected from different sensor devices at regular intervals. This not only ensures that the track monitoring data is reliably transmitted to the track monitoring server, but also can theoretically extend the communication distance between the sensor device and the track monitoring server, and at the same time can detect faults in the sensor device.

[0056] Furthermore, the above track monitoring data is calculated and processed, specifically including the following steps:

[0057] The first step is to obtain the track monitoring data collected by each of the track monitoring points on a preset track section, and also obtain the distance value of each of the track monitoring points in the track direction;

[0058] The second step is to use the first track monitoring point in the track direction as the origin O of the three-dimensional coordinate system, the vertical upward direction as the positive direction of the Z coordinate axis, the track direction as the positive direction of the Y coordinate axis, and the direction on the horizontal plane that is perpendicular to the track direction and close to the other side of the track as the positive direction of the X coordinate axis to establish a three-dimensional coordinate system;

[0059] Step 3: in the three-dimensional coordinate system, three-dimensional coordinate points corresponding to the track monitoring data of each track monitoring point in the track direction are respectively established;

[0060] Step 4: In the above three-dimensional coordinate system, a first fitting curve is generated based on a plurality of different three-dimensional coordinate points, and the maximum value and the minimum value on the above first fitting curve are respectively determined, and the three-dimensional coordinate values ​​of the maximum value and the minimum value on the above first fitting curve are respectively obtained, and the following tanθ value is calculated according to the three-dimensional coordinate values ​​of the maximum value and the minimum value on the above first fitting curve. When the tanθ value is greater than a preset threshold value, it is determined that the deformation of a track section reaches a dangerous level:

[0061]

[0062] Wherein, (x1, y1, z1) is the three-dimensional coordinate value of the minimum value on the first fitting curve, and (x2, y2, z2) is the three-dimensional coordinate value of the maximum value on the first fitting curve;

[0063] Specifically, in actual situations, the track is generally divided into different track sections, and the deformation on the track sections is analyzed respectively. The first step to the fourth step above provide a method for analyzing the deformation on the track section. First, the track monitoring data of different track monitoring points on the track section are obtained, that is, the deformation of the track monitoring points in the vertical direction detected in real time by the vertical vector measurement displacement sensor device, and the deformation of the track monitoring points in the horizontal plane perpendicular to the track direction detected in real time by the lateral measurement displacement sensor device. At the same time, the distance values ​​of different track monitoring points in the track section in the track direction are also obtained. The present invention does not consider the deformation of the track monitoring points in the track direction. Secondly, the first track monitoring point in the track direction is used as the origin to establish a three-dimensional coordinate system. When no monitoring points are deformed, each track monitoring point is located on the Y coordinate axis. Again, based on the data obtained in the first step, three-dimensional coordinate points corresponding to the track monitoring data of each track monitoring point are established in the three-dimensional coordinate system. Finally, a first fitting curve is obtained in the three-dimensional coordinate system based on different three-dimensional coordinate points. The first fitting curve can represent the shape of the track after deformation to a certain extent. The three-dimensional coordinate values ​​at the maximum and minimum values ​​on the first fitting curve are obtained to calculate the value of tanθ. The larger the value of tanθ, the more serious the track deformation. When the value of tanθ reaches the threshold, it means that the track deformation has reached a dangerous level and it is necessary to promptly warn relevant personnel. This can simplify the method of analyzing the severity of track deformation and quickly obtain analysis results.

[0064] Furthermore, the above track monitoring data is calculated and processed, including the following steps:

[0065] The first step is to obtain the track monitoring data collected by each of the track monitoring points on a preset track section, and also obtain the distance value of each of the track monitoring points in the track direction;

[0066] The second step is to use the first track monitoring point in the track direction as the origin O of the three-dimensional coordinate system, the vertical upward direction as the positive direction of the Z coordinate axis, the track direction as the positive direction of the Y coordinate axis, and the direction on the horizontal plane that is perpendicular to the track direction and close to the other side of the track as the positive direction of the X coordinate axis to establish a three-dimensional coordinate system;

[0067] Step 3: in the three-dimensional coordinate system, three-dimensional coordinate points corresponding to the track monitoring data of each track monitoring point in the track direction are respectively established;

[0068] Step 4: In the above three-dimensional coordinate system, a plurality of different three-dimensional coordinate points are projected onto the coordinate plane XOZ, and a second fitting curve is generated based on the projection points of the plurality of different three-dimensional coordinate points. When the second fitting curve forms a closed figure, the area of ​​the closed figure is calculated. When the second fitting curve cannot form a closed figure, the area of ​​the closed figure formed by the second fitting curve and the X-coordinate axis and the Y-coordinate axis is calculated. When the area is greater than a preset threshold, it is determined that the deformation of a track section has reached a dangerous level.

[0069] Specifically, the first step to the fourth step above propose another method for analyzing deformation on a track section, wherein the first step to the third step are the same as those in the previous method, and therefore will not be described in detail. In the fourth step, unlike the first fitting curve of three-dimensional coordinate points generated in a three-dimensional coordinate system in the previous method, in this method, different coordinate points in the three-dimensional coordinate system are first projected onto the coordinate plane XOZ, and their projection points are obtained, and then a second fitting curve is generated based on these projection points. The second fitting curve describes in detail the deformation of different track monitoring points on the X-coordinate axis and the Z-coordinate axis. The second fitting curve may form a closed figure or may be only a section of a curve. At this time, the area of ​​the above-mentioned closed figure, or the area of ​​the closed figure enclosed by the second fitting curve and the X-coordinate axis and the Z-coordinate axis, is calculated respectively. When the area is greater than a preset threshold, it means that the track deformation has reached a dangerous level. This method can also simplify the method of analyzing the severity of track deformation and quickly obtain analysis results.

[0070] References Figure 2 As shown, the present invention also provides a track dynamic deformation monitoring system, which is used to implement a track dynamic deformation monitoring method as described above. Specifically, the functions of each module are described as follows:

[0071] The equipment module is used to set a track monitoring point at each preset fixed distance on the double-side tracks, and symmetrically fix the sensor equipment on the rail waist of the double-side tracks corresponding to the track monitoring points, and the sensor equipment includes a vertical displacement sensor equipment arranged on the outer side of the track along the longitudinal direction of the track, and a lateral displacement sensor equipment arranged on the inner side of the track along the longitudinal direction of the track;

[0072] A monitoring module is used to detect the deformation of the track monitoring point in the vertical direction in real time through a vertical displacement sensor device, and to detect the deformation of the track monitoring point in a horizontal plane in a direction perpendicular to the track direction through a lateral displacement sensor device, and the vertical displacement sensor device and the lateral displacement sensor device send the collected track monitoring data to the track monitoring server through a wireless network and a 4G / 5G network;

[0073] The analysis module is used to calculate and process the track monitoring data after the track monitoring server receives the track monitoring data sent by the vertical displacement sensor device and the lateral displacement sensor, and send an alarm message to relevant personnel through the track monitoring server when the track deformation reaches a dangerous level.

[0074] It should be understood that, although each step in the flow chart of each embodiment of the present invention is shown in sequence according to the indication of the arrow, these steps are not necessarily performed in sequence according to the order indicated by the arrow. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be performed in other orders. Moreover, at least a portion of the steps in each embodiment may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these sub-steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0075] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The above-mentioned program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0076] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0078] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for monitoring track dynamic deformation, characterized in that: The steps include: A track monitoring point is set at each preset fixed distance on the double-side tracks, and the sensor equipment is symmetrically fixed on the rail waist of the double-side tracks corresponding to the track monitoring points. The sensor equipment includes a vertical displacement sensor device arranged on the outer side of the track along the longitudinal direction of the track, and a lateral displacement sensor device arranged on the inner side of the track along the longitudinal direction of the track; The vertical displacement sensor device detects the deformation of the track monitoring point in the vertical direction in real time, and the lateral displacement sensor device detects the deformation of the track monitoring point in the horizontal plane in a direction perpendicular to the track direction in real time. When the vertical displacement sensor device and the lateral displacement sensor device receive a data collection command from the track monitoring server, they respectively send the track monitoring data collected by themselves to the track monitoring server; After receiving the track monitoring data sent by the vertical displacement sensor device and the lateral displacement sensor device, the track monitoring server calculates and processes the track monitoring data, and when the track deformation reaches a dangerous level, the track monitoring server sends an alarm message to relevant personnel; The calculation and processing of track monitoring data includes the following steps: Acquire the track monitoring data collected by each track monitoring point on a preset track section, and also acquire the distance value of each track monitoring point in the track direction; The first track monitoring point in the track direction is taken as the origin O of the three-dimensional coordinate system, the vertical upward direction is taken as the positive direction of the Z coordinate axis, the track direction is taken as the positive direction of the Y coordinate axis, and the direction on the horizontal plane that is perpendicular to the track direction and close to the other side of the track is taken as the positive direction of the X coordinate axis to establish a three-dimensional coordinate system; In the three-dimensional coordinate system, three-dimensional coordinate points corresponding to the track monitoring data of each track monitoring point in the track direction are respectively established; In a three-dimensional coordinate system, a first fitting curve is generated based on a plurality of different three-dimensional coordinate points, and the maximum value and the minimum value on the first fitting curve are determined respectively, and the three-dimensional coordinate values ​​of the maximum value and the minimum value on the first fitting curve are obtained respectively, and the following is calculated according to the three-dimensional coordinate values ​​of the maximum value and the minimum value on the first fitting curve: When When the value of is greater than the preset threshold, the deformation of a track section is judged to have reached a dangerous level: in, is the three-dimensional coordinate value of the minimum value on the first fitting curve, is the three-dimensional coordinate value of the maximum value on the first fitting curve.

2. A method for monitoring track dynamic deformation according to claim 1, characterized in that: The sensor device sends the track monitoring data collected by itself to the track monitoring server, including the following steps: Selecting a sensor device from among all the sensor devices as a relay sensor device; The track monitoring server sends a data collection command, the data collection command includes a communication address of a sensor device, to obtain track monitoring data of a corresponding sensor device; The relay sensor device receives the data collection command and determines whether the communication address in the data collection command is consistent with its own communication address. If they are consistent, the relay sensor device sends the track monitoring data collected by itself to the track monitoring server. If they are inconsistent, the relay sensor device stores the track monitoring data sent to the track monitoring server by the sensor device corresponding to the communication address in the data collection command, and the relay sensor device records the delay time from receiving the data collection command to receiving the track monitoring data. The track monitoring server performs calculation processing on the track monitoring data when receiving the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command, and sends a query command to the relay sensor device when not receiving the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command; The relay sensor device receives the query command and simultaneously sends the track monitoring data of the sensor device corresponding to the communication address in the data collection command and the delay time stored previously to the track monitoring server.

3. A method for monitoring track dynamic deformation according to claim 2, characterized in that: In the case where the track monitoring server does not receive the track monitoring data sent by the sensor device corresponding to the communication address in the data collection command, the track monitoring server further includes the following steps: The track monitoring server sends a forwarding command to the relay sensor device, wherein the forwarding command includes a communication address that is the same as that in the data collection command; The relay sensor device continues to send the forwarding command to the sensor device corresponding to the communication address in the forwarding command, and the sensor device sends the track monitoring data collected by itself to the track monitoring server.

4. A method for monitoring track dynamic deformation according to claim 1, characterized in that: The calculation and processing of track monitoring data includes the following steps: Acquire the track monitoring data collected by each track monitoring point on a preset track section, and also acquire the distance value of each track monitoring point in the track direction; The first track monitoring point in the track direction is taken as the origin O of the three-dimensional coordinate system, the vertical upward direction is taken as the positive direction of the Z coordinate axis, the track direction is taken as the positive direction of the Y coordinate axis, and the direction on the horizontal plane that is perpendicular to the track direction and close to the other side of the track is taken as the positive direction of the X coordinate axis to establish a three-dimensional coordinate system; In the three-dimensional coordinate system, three-dimensional coordinate points corresponding to the track monitoring data of each track monitoring point in the track direction are respectively established; In a three-dimensional coordinate system, a plurality of different three-dimensional coordinate points are projected onto a coordinate plane XOZ, and a second fitting curve is generated based on the projection points of the plurality of different three-dimensional coordinate points. When the second fitting curve forms a closed figure, the area of ​​the closed figure is calculated. When the second fitting curve cannot form a closed figure, the area of ​​the closed figure formed by the second fitting curve and the X-coordinate axis and the Y-coordinate axis is calculated. When the area is greater than a preset threshold, it is determined that the deformation of a track section has reached a dangerous level.

5. A track dynamic deformation monitoring system, used to implement the method according to any one of claims 1 to 4, characterized in that: Includes the following modules: The equipment module is used to set a track monitoring point at each preset fixed distance on the double-side tracks, and symmetrically fix the sensor equipment on the rail waist of the double-side tracks corresponding to the track monitoring points, and the sensor equipment includes a vertical displacement sensor equipment arranged on the outer side of the track along the longitudinal direction of the track, and a lateral displacement sensor equipment arranged on the inner side of the track along the longitudinal direction of the track; A monitoring module is used to detect the deformation of the track monitoring point in the vertical direction in real time through a vertical displacement sensor device, and to detect the deformation of the track monitoring point in a horizontal plane in a direction perpendicular to the track direction through a lateral displacement sensor device, and the vertical displacement sensor device and the lateral displacement sensor device send the collected track monitoring data to the track monitoring server through a wireless network and a 4G / 5G network; The analysis module is used to calculate and process the track monitoring data after the track monitoring server receives the track monitoring data sent by the vertical displacement sensor device and the lateral displacement sensor device, and send an alarm message to relevant personnel through the track monitoring server when the track deformation reaches a dangerous level.

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