Railway maintenance intelligent optimization system based on existing tracks

Abstract

The invention relates to the technical field of iron auxiliary maintenance, in particular to an intelligent optimization system based on existing track railway maintenance, which comprises a user system module, a rule module and a design module, and is characterized in that the design module comprises plane optimization design and longitudinal section optimization design, and reasonably plans the classification of measurement points in straight lines, easement curves and circular curves through a mathematical algorithm; the overall rule is met. And through automatic optimization of an algorithm of a computer system, the design efficiency and the design accuracy are improved. According to the track flat and longitudinal plane optimization design auxiliary system, the maintenance design work of a designer on an existing railway can be remarkably improved, the mode of offline manual drawing of CAD in the past is switched into the mode of automatic line optimization of the system and manual adjustment of the designer, and the working efficiency can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of iron-assisted maintenance, specifically an intelligent optimization system for the maintenance of existing railway tracks. Background Art

[0002] The current invention belongs to the field of iron-assisted maintenance. Currently, in the industry, the maintenance of existing railways is basically planned manually by depicting CAD, with low efficiency. The currently submitted auxiliary system for the optimization design of the vertical and horizontal alignment of tracks imports the measured point data of a railway line (the data structure mainly includes: mileage, longitude, latitude, altitude). Through fitting operations, under the condition of meeting the railway line design rules, a set of route planning lines with the minimum construction volume is automatically calculated. Based on the designed line, the lining-out amount of the measured points is calculated, and then the CAD drawing is exported to guide the major repair construction of this section of the railway line. Summary of the Invention

[0003] The present invention provides an intelligent optimization system for the maintenance of existing railway tracks to solve the problem of low work efficiency of manual operations in the railway maintenance design drafts of the prior art.

[0004] The present invention is realized through the following technical solutions:

[0005] The intelligent optimization system for the maintenance of existing railway tracks includes a user system module, a rule module, and a design module. The design module includes planar optimization design and vertical section optimization design. Through mathematical algorithms, the classification of measurement points on straight lines, transition curves, and circular curves is reasonably planned to conform to the overall rules.

[0006] As a preferred solution of the present invention:

[0007] The design module includes basic data entry, automatic design, and manual intervention optimization. Basic data entry manually imports measurement points into the system and calculates the continuous mileage and marked mileage of the measurement points in combination with the break chain data. The core data is longitude, latitude, and altitude. Automatic design generates optimized line data based on the measurement points through planar and vertical section optimization algorithms.

[0008] As a preferred solution of the present invention:

[0009] The design module includes the following steps

[0010] S1, establish a plane rectangular coordinate system according to longitude and latitude;

[0011] S2, calculate the curvature of all measurement points according to the three-point co-circle rule of the measurement points;

[0012] S3, construct a straight-line equation;

[0013] S4, calculate the lining-out amount of the measurement points in the straight-line segment part;

[0014] S5, Linear precise segmentation;

[0015] S6, Linear equation initialization;

[0016] S7, Circular curve initialization;

[0017] S8, Transition curve parameter initialization;

[0018] S9, Calculate the amount of track lining for the curve section;

[0019] S10, Optimize the results and parametric equations.

[0020] As a preferred embodiment of the present invention:

[0021] After the transition curve parameter initialization, optimize the core of the transition curve, including the following steps

[0022] ① Calculate the coordinates of the center of the circular curve and the perpendicular point of the previous tangent point from the center coordinates of the circular curve and the equation of the previous tangent point, and the length l of the perpendicular line c ;

[0023] ② Calculate the perpendicular distance p from the HY point to the previous tangent line, and the calculation rule is: p = l c -R

[0024] ③ The conversion formula between p and the length of the transition curve is: According to the equation where: R is the radius of the circular curve, and is the length of the previous transition curve. According to this formula, given the values of p and R, the length of the previous transition curve can be calculated. The length of the previous transition curve is rounded to the nearest 10-meter multiple, and the value of p is calculated in reverse to adjust the y value of the center coordinates of the circular curve;

[0025] ④ The formula for the distance m between the perpendicular point and the ZH point is: Given the length of the previous transition curve and the radius R of the circular curve, the distance m between the perpendicular point and the ZH point can be calculated;

[0026] ⑤ In the tangent equation, find the point that is at a distance of m from the perpendicular point forward, which is the HZ point. According to the tangent equation, the mileage and coordinates of the HZ point can be calculated;

[0027] ⑥ The mileage of the HZ point + the length l0 of the previous transition curve can give the mileage of the HY point;

[0028] According to a similar rule, the following can be calculated: the length l1 of the subsequent transition curve, the mileage of the HZ point, and the mileage of the YH point.

[0029] Thus, the initialization of the curve section equation is completed.

[0030] As a preferred embodiment of the present invention:

[0031] The manual intervention is optimized such that the designer can drag the points on the vertical section on the interface, and the system background will automatically calculate the alignment adjustment amount and the elevation adjustment amount of the associated measurement points after dragging. The interface provides functions for adding, deleting, and moving measurement points to assist the designer in continuously optimizing the line.

[0032] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0033] Through the automatic optimization of the algorithm of the computer system, the design efficiency and design accuracy are improved. The auxiliary system for the optimization design of the horizontal and vertical plane of the track can significantly improve the maintenance design work of the designer for the existing railway. By switching from the previous method of manually drawing CAD offline to the method of automatically optimizing the line by the system and manually adjusting by the designer, the work efficiency can be greatly improved. Specific embodiments

[0034] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments. The illustrative embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0035] Embodiment

[0036] Based on the existing intelligent optimization system for railway track maintenance, including a user system module, a rule module, and a design module, the design module includes horizontal plane optimization design and vertical section optimization design. Through mathematical algorithms, the classification of measurement points on straight lines, transition curves, and circular curves is reasonably planned to conform to the overall rules, so that the sum of the absolute values of the final alignment adjustment amount and the elevation adjustment amount is as low as possible, reducing the railway track maintenance workload.

[0037] The user system module adopts RBAC to design the user system, which consists of three major parts: users, roles, and permissions. A user has multiple roles, and a role can be owned by multiple users, which is a many-to-many relationship between users and roles.

[0038] The rule module is pre-configured by the administrator with track design rule parameters, such as: minimum radius of circular curve, transition curve length rule, plane circular curve and tangent length rule, slope length rule, vertical curve radius rule. The system performs automatic fitting design of the horizontal and vertical plane lines and will calculate and optimize the line with reference to the rules.

[0039] In an embodiment of the present invention, in specific use,

[0040] The design module includes basic data entry, automatic design, and manual intervention optimization. The basic data entry is to manually import measurement points into the system, and calculate the continuous mileage and marked mileage of the measurement points in combination with the break chain data. The core data is longitude and latitude, altitude. The automatic design generates optimized line data based on the measurement points through horizontal plane and vertical section optimization algorithms.

[0041] In an embodiment of the present invention, during specific use,

[0042] The design module includes the following steps

[0043] S1. Establish a plane rectangular coordinate system according to longitude and latitude;

[0044] S2. Calculate the curvature of all measurement points according to the rule that three measurement points are on the same circle;

[0045] S3. Construct a straight-line equation;

[0046] S4. Calculate the track lining amount of the measurement points on the straight-line segment;

[0047] S5. Accurately segment the straight line;

[0048] S6. Initialize the straight-line equation;

[0049] S7. Initialize the circular curve;

[0050] S8. Initialize the parameters of the transition curve;

[0051] S9. Calculate the track lining amount of the curve part;

[0052] S10. Optimize the results and the parametric equation.

[0053] In an embodiment of the present invention, during specific use,

[0054] After the parameters of the transition curve are initialized, optimize the core of the transition curve, including the following steps

[0055] ① Calculate the coordinates of the perpendicular point between the center of the circular curve and the previous tangent point and the perpendicular length l from the center of the circular curve to the previous tangent point according to the equation of the center of the circular curve and the previous tangent point; c ;

[0056] ② Calculate the perpendicular distance p from the HY point to the previous tangent line, and the calculation rule is: p = l c -R

[0057] ③ The conversion formula between p and the length of the transition curve is: According to the equation where: R is the radius of the circular curve, and is the length of the previous transition curve. According to this formula, given the values of p and R, the length of the previous transition curve can be calculated. The length of the previous transition curve is rounded to the nearest 10-meter multiple, and the value of p is calculated in reverse to adjust the y value of the coordinates of the center of the circular curve;

[0058] ④ The formula for the distance m between the perpendicular point and the ZH point is: Given the length of the previous transition curve and the radius R of the circular curve, the distance m between the perpendicular point and the ZH point can be calculated;

[0059] ⑤In the tangent equation, find the point that is at a distance of m from the vertical point forward, which is the transition curve to tangent point. According to the tangent equation, the mileage and coordinates of the transition curve to tangent point can be calculated;

[0060] ⑥The mileage of the transition curve to tangent point + the length l0 of the previous transition curve can give the mileage of the transition curve to circular curve;

[0061] According to similar rules, the following can be calculated: the length l1 of the subsequent transition curve, the mileage of the tangent to transition curve point, and the mileage of the circular curve to transition curve point.

[0062] Thus, the initialization of the curve part equation is completed.

[0063] In an embodiment of the present invention, in specific use,

[0064] The manual intervention is optimized such that the designer drags the points of the vertical section on the interface, and the system background will automatically calculate the alignment adjustment amount and the elevation adjustment amount of the associated measurement points after dragging. The interface provides functions for adding, deleting, and moving measurement points to assist the designer in continuously optimizing the line.

[0065] Finally, according to the result after manual intervention, export the CAD drawing, which can guide the construction personnel to carry out construction, improving the design efficiency and design accuracy.

[0066] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. Based on the existing intelligent optimization system for railway track maintenance, it is characterized in that: It includes a user system module, a rule module and a design module. The design module includes plane optimization design and vertical section optimization design. Through mathematical algorithms, the classification of measurement points on straight lines, transition curves and circular curves is reasonably planned to conform to the overall rules.

2. The intelligent optimization system for railway maintenance based on existing tracks according to claim 1, wherein: The design module includes basic data entry, automatic design and manual intervention optimization. The basic data entry is to manually import measurement points into the system, and calculate the continuous mileage and marked mileage of the measurement points in combination with the broken chain data. The core data are longitude, latitude and altitude. The automatic design generates optimized line data based on the measurement points through plane and vertical section optimization algorithms.

3. The intelligent optimization system for existing railway maintenance according to claim 2, characterized in that: The design module includes the following steps S1. Establish a plane rectangular coordinate system according to longitude and latitude; S2. Calculate the curvature of all measurement points according to the rule of three-point concyclicity of measurement points; S3. Construct a straight-line equation; S4. Calculate the alignment amount of the measurement points in the straight-line section; S5. Accurately segment the straight line; S6. Initialize the straight-line equation; S7. Initialize the circular curve; S8. Initialize the transition curve parameters; S9. Calculate the alignment amount of the curve part; S10. Optimization results and parametric equations.

4. The intelligent optimization system for railway maintenance based on existing tracks according to claim 3, characterized in that: After the initialization of the transition curve parameters, the core of the transition curve is optimized, including the following steps ① Calculate the coordinates of the center of the circular curve and the coordinates of the perpendicular point of the previous tangent point and the length l of the perpendicular line from the equations of the center coordinates of the circular curve and the previous tangent point c ; ② Calculate the perpendicular distance p from the gentle curve point to the previous tangent line. The calculation rule is: p = l c -R ③The conversion formula between p and the length of the transition curve is: According to the equation where: R is the radius of the circular curve, and is the length of the previous transition curve. According to this formula, given the values of p and R, the length of the previous transition curve can be calculated. The length of the previous transition curve is rounded to the nearest 10-meter multiple, and the p value is calculated in reverse to adjust the y value of the center coordinates of the circular curve; ④ The formula for the distance m between the vertical point and the straight - to - spiral point is: Given the length of the previous transition curve and the radius R of the circular curve, the distance m between the vertical point and the straight - to - spiral point can be calculated; ⑤ In the tangent equation, find the point whose distance from the vertical point is m forward, which is the transition to straight point. According to the tangent equation, the mileage and coordinates of the transition to straight point can be calculated; ⑥ Transition to straight point mileage + previous transition curve length l0 can obtain the mileage of the transition to circular point; According to similar rules, the following can be calculated: the length l1 of the rear transition curve, the mileage of the transition to straight point, and the mileage of the circular to transition point. Thus, the initialization of the curve part equation is completed.

5. The intelligent optimization system for maintenance of existing railway tracks according to claim 2, characterized in that: The manual intervention optimization is that the designer drags the points of the vertical section on the interface, and the system background will automatically calculate the alignment amount and the lifting amount of the associated measurement points after dragging. The interface provides functions for adding, deleting and moving measurement points to assist the designer in continuously optimizing the line.

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