High-speed railway acceleration adaptability comprehensive evaluation method, device, equipment and medium

Abstract

The invention provides a high-speed railway acceleration adaptability comprehensive evaluation method and device, equipment and a medium. The method comprises the steps that a first index layer and limiting values and actual values of all indexes in the first index layer are obtained respectively; calculating a first index layer weight based on an analytic hierarchy process; calculating a second index layer weight based on an improved entropy weight method; calculating a comprehensive weight according to the first index layer weight and the second index layer weight; calculating an infrastructure adaptability reference comprehensive evaluation value according to the limit value and the comprehensive weight of each index in the second index layer; according to the actual value of each index in the second index layer and the comprehensive weight, calculating an actual comprehensive evaluation value of the adaptability of the infrastructure; according to the method, based on multi-index comprehensive evaluation, line design standards are considered, the defects of subjective empowerment and qualitative analysis are overcome, and the problem of comprehensive evaluation of the adaptability of the existing high-speed railway acceleration infrastructure is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway system engineering, and particularly to a comprehensive evaluation method, device, equipment and storage medium for the speed increase adaptability of high-speed railways. Background Art

[0002] With the development of the economy and the continuous progress of technology, as an important part of modern transportation, the maximum operating speed of high-speed railways is gradually increasing from 350 km / h to 400 km / h. China has made remarkable achievements in this regard, having established a complete high-speed railway technology system with a speed of 350 km / h and having conducted preliminary explorations on the operation laws at a speed of 400 km / h. However, increasing the train speed from 350 km / h to 400 km / h brings various technical challenges, including but not limited to intensified wheel-rail dynamic action, increased sensitivity of foundation deformation, rising vibration and noise levels, and enhanced aerodynamic effects. Currently, the evaluation research on high-speed railway line infrastructure mainly focuses on a single professional field, separately discussing the changes of different key parameters and their adaptabilities. For example, some research focuses on the dynamic response of the track structure, while others focus on the stability of the geological foundation or noise control, etc. Although this single evaluation method helps to deeply understand the influence of each independent factor, it ignores the complex coupling relationships among these factors and their comprehensive impact on the overall system performance. The evaluation is implemented by experts individually, with strong subjectivity, which affects the safety of future higher-speed railways. Summary of the Invention

[0003] The present invention provides a comprehensive evaluation method, device, equipment and storage medium for the speed increase adaptability of high-speed railways, aiming to solve the defects that the traditional evaluation research on high-speed railway line infrastructure mainly focuses on a single professional field, separately discussing the changes of different key parameters and their adaptabilities, ignoring the complex coupling relationships among these factors and their comprehensive impact on the overall system performance, and having strong subjectivity.

[0004] The present invention provides a comprehensive evaluation method for the speed increase adaptability of high-speed railways, including: Obtaining the limit values and actual values of each index in the first index layer and the first index layer respectively; Calculating the weight of the first index layer based on the analytic hierarchy process; Calculating the weight of the second index layer based on the improved entropy weight method; Calculating the comprehensive weight according to the weight of the first index layer and the weight of the second index layer; Calculating the infrastructure adaptability benchmark comprehensive evaluation value according to the limit values of each index in the second index layer and the comprehensive weight; Calculating the infrastructure adaptability actual comprehensive evaluation value according to the actual values of each index in the second index layer and the comprehensive weight; Compare the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure.

[0005] According to the comprehensive evaluation method for the adaptability of high-speed railway speed increase provided by the present invention, the first index layer includes multiple professional design indexes; the second index layer includes adaptability evaluation indexes corresponding to each professional design index, and the comprehensive weight calculation formula is; Where: is the final weight of the j-th index; is the weight of the j-th index in the first index layer; is the weight of the j-th index in the second index layer.

[0006] According to the comprehensive evaluation method for the adaptability of high-speed railway speed increase provided by the present invention, calculating the weight of the second index layer based on the improved entropy weight method includes: Collect the scoring results of multiple experts on the adaptability evaluation indexes respectively, and establish an evaluation matrix; Process the evaluation matrix by using L2 norm normalization, and obtain the weight values of each adaptability evaluation index by calculating the entropy value corresponding to each adaptability evaluation index and multiplying it by the average value of the corresponding column of the evaluation matrix. The improved entropy weight method formula is: Where, is the weight of the j-th adaptability evaluation index in the second index layer; is the effectiveness of information entropy; is the average value of the elements in the j-th column of the normalized evaluation matrix.

[0007] According to the comprehensive evaluation method for the adaptability of high-speed railway speed increase provided by the present invention, calculating the weight of the first index layer based on the analytic hierarchy process includes: Construct a judgment matrix according to the importance score of each index in the first index layer; Calculate the single-layer weight vector of each element in the judgment matrix; Perform consistency verification on the single-layer weight vector; After the consistency verification passes, calculate the combined weight vector between two elements in the judgment matrix; Perform consistency verification on the combined weight vector, and obtain the weight of the first index layer after the consistency verification passes.

[0008] According to the comprehensive evaluation method for the adaptability of high-speed railway speed increase provided by the present invention, the first index layer further includes: service status index and the total length calculation index of speed limit sections; the comprehensive evaluation method for the adaptability of high-speed railway speed increase further includes: Dividing the adaptability evaluation results of the professional design index into three levels: not adaptable, basically adaptable, and adaptable; if the adaptability evaluation results of all professional design indexes are basically adaptable or adaptable, then continue to evaluate the service status index; otherwise, it is judged that the infrastructure is not adaptable to the speed increase operation condition; If each service status index meets the limit requirements, then continue to evaluate the total length calculation index of speed limit sections; otherwise, it is necessary to judge whether the service status index that does not meet the limit requirements can be repaired. If it can be repaired, then continue to evaluate the total length calculation index of speed limit sections after meeting the limit requirements. If it cannot be repaired, then judge that the infrastructure is not adaptable to the speed increase operation condition; If the length of the speed limit section is greater than the preset ratio of the total length of the line, it is judged that the infrastructure is not adaptable to the speed increase operation condition.

[0009] According to the comprehensive evaluation method for the adaptability of high-speed railway speed increase provided by the present invention, it further includes normalizing the numerical values of various adaptability evaluation indexes corresponding to each specialty in the second index layer into cost-type indexes in a positive direction, specifically including: For extremely small indexes The following formula is used for positive normalization, and the formula is: For intermediate indexes The following formula is used for positive normalization, and the formula is: Where: Is the optimal value of the intermediate index; For interval-type indexes The following formula is used for positive normalization, and the formula is: Where: a is the interval-type index Corresponding to the minimum value of the optimal range interval, and b is the interval-type index Corresponding to the maximum value of the optimal range interval; Adopt the maximum-minimum normalization method to scale the value range of the index To the range between [0, 1] to obtain the cost-type index , and the formula is: .

[0010] According to the comprehensive evaluation method for high-speed railway speed increase adaptability provided by the present invention, comparing the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure includes: If the actual comprehensive evaluation value is less than the benchmark comprehensive evaluation value, it is determined that the existing high-speed railway infrastructure meets the speed increase requirements; otherwise, the speed cannot be increased; wherein, the speed increase requirement is a speed requirement of 400 km / h.

[0011] The present invention also provides a comprehensive evaluation device for high-speed railway speed increase adaptability, including: An acquisition module, configured to respectively acquire the limit values and actual values of each index in the first index layer and the first index layer; A first weight calculation module, configured to calculate the weight of the first index layer based on the analytic hierarchy process; A second weight calculation module, configured to calculate the weight of the second index layer based on the improved entropy weight method; A comprehensive weight calculation module, configured to calculate the comprehensive weight according to the weight of the first index layer and the weight of the second index layer; A benchmark evaluation value calculation module, configured to calculate the benchmark comprehensive evaluation value of infrastructure adaptability according to the limit values of each index in the second index layer and the comprehensive weight; An actual evaluation value calculation module, configured to calculate the actual comprehensive evaluation value of infrastructure adaptability according to the actual values of each index in the second index layer and the comprehensive weight; A determination module, configured to compare the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure.

[0012] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the program, the comprehensive evaluation method for high-speed railway speed increase adaptability as described in any one of the above is implemented.

[0013] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the comprehensive evaluation method for high-speed railway speed increase adaptability as described in any one of the above is implemented.

[0014] The comprehensive evaluation method, device, equipment and storage medium for the speed increase adaptability of high-speed railways provided by the present invention respectively obtain the limit values and actual values of each index in the first index layer and the first index layer; calculate the weight of the first index layer based on the analytic hierarchy process; calculate the weight of the second index layer based on the improved entropy weight method; calculate the comprehensive weight according to the weight of the first index layer and the weight of the second index layer; calculate the infrastructure adaptability benchmark comprehensive evaluation value according to the limit values of each index in the second index layer and the comprehensive weight; calculate the infrastructure adaptability actual comprehensive evaluation value according to the actual values of each index in the second index layer and the comprehensive weight; compare the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure. Based on multi-index comprehensive evaluation and considering the line design standards, the present invention overcomes the shortcomings of subjective weight assignment and qualitative analysis and solves the problem of the comprehensive evaluation of the infrastructure adaptability for the speed increase of existing high-speed railways. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is one of the flow diagrams of the comprehensive evaluation method for the speed increase adaptability of high-speed railways provided by the embodiments of the present invention; Figure 2 is the second flow diagram of the comprehensive evaluation method for the speed increase adaptability of high-speed railways provided by the embodiments of the present invention; Figure 3 is the schematic diagram of the index level division provided by the embodiments of the present invention; Figure 4 is the functional structure diagram of the comprehensive evaluation device for the speed increase adaptability of high-speed railways provided by the embodiments of the present invention; Figure 5 is the functional structure diagram of the electronic device provided by the embodiments of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention with reference to the drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0018] Figure 1The flowchart of the comprehensive evaluation method for the speed-up adaptability of high-speed railways provided by the embodiments of the present invention is as follows: Figure 1 As shown, the comprehensive evaluation method for the speed-up adaptability of high-speed railways provided by the embodiments of the present invention includes: Step 101: Obtain the limit values and actual values of each index in the first index layer and the first index layer respectively; Step 102: Calculate the weight of the first index layer based on the analytic hierarchy process; Step 103: Calculate the weight of the second index layer based on the improved entropy weight method; Step 104: Calculate the comprehensive weight according to the weight of the first index layer and the weight of the second index layer; Step 105: Calculate the benchmark comprehensive evaluation value of infrastructure adaptability according to the limit values of each index in the second index layer and the comprehensive weight; Step 106: Calculate the actual comprehensive evaluation value of infrastructure adaptability according to the actual values of each index in the second index layer and the comprehensive weight; Step 107: Compare the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure.

[0019] In the embodiments of the present invention, the comparison of the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure includes: If the actual comprehensive evaluation value is less than the benchmark comprehensive evaluation value, it is determined that the existing high-speed railway infrastructure meets the speed-up requirements; otherwise, it cannot be speeded up; where the speed-up requirement is a speed requirement of 400 km / h.

[0020] Traditional evaluation studies on high-speed railway line infrastructure mainly focus on a single professional field, respectively discussing the changes of different key parameters and their adaptabilities. For example, some studies focus on the dynamic response of the track structure, while others focus on the stability of the geological foundation or noise control, etc. Although this single evaluation method helps to deeply understand the influence of each independent factor, it ignores the complex coupling relationship between these factors and their comprehensive influence on the overall system performance. Moreover, the evaluation by experts is highly subjective, which affects the safety of future higher-speed railways.

[0021] The comprehensive evaluation method for the adaptability of high-speed railway speed increase provided by the embodiments of the present invention includes: respectively obtaining the limit values and actual values of each index in the first index layer and the first index layer; calculating the weight of the first index layer based on the analytic hierarchy process; calculating the weight of the second index layer based on the improved entropy weight method; calculating the comprehensive weight according to the weight of the first index layer and the weight of the second index layer; calculating the benchmark comprehensive evaluation value of infrastructure adaptability according to the limit values of each index in the second index layer and the comprehensive weight; calculating the actual comprehensive evaluation value of infrastructure adaptability according to the actual values of each index in the second index layer and the comprehensive weight; comparing the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure. The present invention is based on multi-index comprehensive evaluation, considering the line design standards, overcoming the shortcomings of subjective weighting and qualitative analysis, and solving the problem of comprehensive evaluation of the adaptability of existing high-speed railway speed increase infrastructure.

[0022] Based on any of the above embodiments, the first index layer includes multiple professional design indexes; the second index layer includes adaptability evaluation indexes corresponding to each professional design index, and the comprehensive weight calculation formula is; Where: is the final weight of the jth index; is the weight of the jth index in the first index layer; is the weight of the jth index in the second index layer.

[0023] In the embodiments of the present invention, the calculation of the weight of the second index layer based on the improved entropy weight method includes: Collect the scoring results of multiple experts on the adaptability evaluation indexes respectively, and establish an evaluation matrix; Process the evaluation matrix by using L2 norm normalization. By calculating the entropy value corresponding to each adaptability evaluation index and multiplying it by the average value of the corresponding column of the evaluation matrix, the weight value of each adaptability evaluation index is obtained. The improved entropy weight method formula is: Where, is the weight of the jth adaptability evaluation index in the second index layer; is the effective degree of information entropy; is the average value of the elements in the jth column of the normalized evaluation matrix.

[0024] In the embodiments of the present invention, the calculation of the weight of the first index layer based on the analytic hierarchy process includes: Construct a judgment matrix according to the importance score of each index in the first index layer; Calculate the single-layer weight vectors of the elements in the judgment matrix; Perform consistency verification on the single-layer weight vectors; After the consistency verification passes, calculate the combined weight vectors between pairwise elements in the judgment matrix; Perform consistency verification on the combined weight vectors, and obtain the first index layer weights after the consistency verification passes.

[0025] Based on any of the above embodiments, the first index layer further includes: service status index and speed limit section total length calculation index; the comprehensive evaluation method for high-speed railway speed increase adaptability further includes: Divide the adaptability evaluation results of the professional design indicators into three levels: not adaptable, basically adaptable, adaptable; if the adaptability evaluation results of all professional design indicators are basically adaptable or adaptable, then continue to evaluate the service status indicators; otherwise, judge that the infrastructure is not adaptable to the speed increase operating conditions; If each service status indicator meets the limit requirements, then continue to evaluate the speed limit section total length calculation index; otherwise, it is necessary to judge whether the service status indicators that do not meet the limit requirements can be repaired. If they can be repaired, then continue to evaluate the speed limit section total length calculation index after meeting the limit requirements. If they cannot be repaired, then judge that the infrastructure is not adaptable to the speed increase operating conditions; If the length of the speed limit section is greater than the preset ratio of the total line length, judge that the infrastructure is not adaptable to the speed increase operating conditions.

[0026] Based on any of the above embodiments, the comprehensive evaluation method for high-speed railway speed increase adaptability further includes normalizing the numerical values of various adaptability evaluation indicators corresponding to each specialty in the second index layer into cost-type indicators, specifically including: For extremely small indicators Perform normalization using the following formula, and the formula is: For intermediate indicators Perform normalization using the following formula, and the formula is: Where: Is the optimal value of the intermediate indicator; For interval-type indicators Perform normalization using the following formula, and the formula is: Where: a is the interval-type indicator Corresponding to the minimum value of the optimal range interval, b is the interval-type indicator Corresponding to the maximum value of the optimal range interval; The maximum-minimum normalization method is used to scale the value range of the index to the range of [0, 1] to obtain the cost-type index , and the formula is: .

[0027] As Figure 2 described above, the specific implementation process of the comprehensive evaluation method for the speed-up adaptability of high-speed railways provided by the embodiments of the present invention includes: (1) Standard benchmarking: Benchmark the infrastructure of existing high-speed railways against standards. If the requirements are met, proceed to the next step; if not, directly end the evaluation.

[0028] (2) Service status evaluation: Evaluate the service status of the infrastructure of existing high-speed railways.

[0029] If the status is good, proceed to the next step; if the status is poor, determine whether it can be repaired.

[0030] If it can be repaired, re-evaluate after repair; if it cannot be repaired, end the evaluation.

[0031] (3) Calculation of the total length of speed-limited sections: Calculate the total length of speed-limited sections.

[0032] If the proportion of the total length of speed-limited sections in the total length of the line is less than or equal to 30%, proceed to the next step; otherwise, speed increase is not allowed.

[0033] (4) Construction of dynamic indicators: Construct dynamic evaluation indicators and perform positive normalization processing.

[0034] (5) Obtaining importance: Obtain the importance data of each dynamic evaluation indicator.

[0035] (6) Use the analytic hierarchy process to calculate the index weights of the first level. Use the improved entropy weight method to calculate the index weights of the second level.

[0036] (7) Comprehensively calculate the total weights of each index.

[0037] (8) Comprehensive score calculation: Calculate the comprehensive score according to the total weights and actual values.

[0038] (9) Determine whether the comprehensive score meets the requirements. If it meets the requirements, speed increase is allowed; if not, speed increase is not allowed.

[0039] Based on any of the above embodiments, the embodiments of the present invention take a certain high-speed railway as the object and evaluate the speed-up adaptability of its infrastructure, including the following specific steps: (1) Standard benchmarking Table 1 shows the design indicators of each specialty of the existing high-speed railway line infrastructure. It can be seen from Table 1 that the actual values of each design indicator meet the limit requirements, so the service status assessment is entered.

[0040] Table 1 Design Indicators of Each Specialty of the Existing High-Speed Railway Line Infrastructure

[0041] (2)Service Status Assessment Table 2 shows the service status indicators of each specialty of the existing high-speed railway line infrastructure. It can be seen from Table 2 that the actual values of each service status indicator meet the limit requirements, so the total length calculation of the speed limit section is entered.

[0042] Table 2 Service Status Indicators of Each Specialty of the Existing High-Speed Railway Line Infrastructure

[0043] (3)Total Length Calculation of the Speed Limit Section According to the analysis of the speed limit section data of the actual line, the length of the speed limit section of the Fuzhou-Xiamen High-Speed Railway is less than 70% of the total line length, meeting the speed increase requirements, and the construction of the dynamic evaluation index of infrastructure adaptability is entered.

[0044] (4)Construction of the Dynamic Evaluation Index of Infrastructure Adaptability Construct the dynamic evaluation index of infrastructure adaptability (the second index layer), as shown in Table 3.

[0045] Table 3 Dynamic Evaluation Index of Infrastructure Adaptability

[0046] (5)Calculation of the Comprehensive Evaluation Value of the Infrastructure Adaptability Benchmark Normalize the numerical values of each index in Index Layer 2 in a positive direction, and the results are shown in Table 3.

[0047] (6)Obtaining Importance Data Invite several well-known experts in each specialty of the railway to score the first index layer (the six specialties of track, subgrade, bridge, and tunnel of the line) and the second index layer respectively. The index importance and scoring principles are shown in Tables 4 to 7. The index level division is as Figure 3 shown.

[0048] Table 4 Importance of Index Layer 1

[0049] Table 5 Scoring Principle of the Importance of the First Index Layer

[0050] Table 6 Importance of the Second Index Layer

[0051] Table 7 Scoring Principles for the Importance of the Second Index Layer

[0052] (7) Calculation of the Comprehensive Evaluation Value of Infrastructure Adaptability Benchmark The weights of the first index layer are calculated by the analytic hierarchy process, and the second index 2 is calculated by the improved entropy weight method. Their weights are shown in Table 8 and Table 9 respectively. The final weights of the indicators are calculated according to the formula, as shown in Table 10.

[0053] Table 8 Weights of the First Index Layer

[0054] Table 9 Weights of the Second Index Layer

[0055] Table 10 Comprehensive Weights of the Indicators

[0056] (8) Calculation of the Comprehensive Evaluation Value of Infrastructure Adaptability Benchmark Comprehensive Evaluation Value of Infrastructure Adaptability Benchmark = 0.0661 * 0 + 0.3135 * 0 + 0.079 * 0 + 0.0425 * 0 + 0.3032 * 1 * 0 + 0.1624 * 1 * 0 + 0.0333 * 1 * 0 = 0 (9) Calculation of the Actual Comprehensive Evaluation Value of Infrastructure Adaptability = 0.0661 * 0.32 + 0.3135 * 0.668 + 0.079 * 0.091 + 0.0425 * 0.18 + 0.3032 * 0.188 + 0.1624 * 0.384 + 0.0333 * 0.389 = 0.378 (10) Adaptability Evaluation Actual Comprehensive Evaluation Value of Infrastructure Adaptability = 0.378 > , so this high-speed railway meets the adaptability evaluation and speed increase is allowed.

[0057] The comprehensive evaluation method for the speed-up adaptability of high-speed railways provided by the embodiments of the present invention covers the key technical parameters of six major specialties including track engineering lines, tracks, subgrades, bridges, and tunnels, and comprehensively constructs an index system for the speed-up adaptability of infrastructure; the dynamic adaptability assessment of existing high-speed railway infrastructure is divided into two layers. The first index layer is calculated using the analytic hierarchy process, and the second index layer is calculated using the improved entropy weight method. It can systematically evaluate the adaptability of the infrastructure of existing high-speed railway lines when the speed is increased to 400 km / h from multiple specialties and multiple indicators, avoiding the overall impact on the line under the condition of ignoring the comprehensive effect of multiple factors in the prior art, and realizing the overall assessment of the adaptability of the infrastructure of existing high-speed railway lines when the speed is increased to 400 km / h; taking into account the coupling relationship between the professional indicators, it overcomes the deficiency of traditional analysis methods that ignore the overall impact on the line under the condition of the comprehensive effect of multiple factors.

[0058] The comprehensive evaluation device for the speed-up adaptability of high-speed railways provided by the present invention will be described below. The comprehensive evaluation device for the speed-up adaptability of high-speed railways described below can be mutually referred to the comprehensive evaluation method for the speed-up adaptability of high-speed railways described above.

[0059] Figure 4 It is a schematic structural diagram of the comprehensive evaluation device for the speed-up adaptability of high-speed railways provided by the embodiments of the present invention, as Figure 4 shown, the comprehensive evaluation device for the speed-up adaptability of high-speed railways provided by the embodiments of the present invention includes: An acquisition module 401, configured to respectively acquire the limit values and actual values of each index in the first index layer and the first index layer; A first weight calculation module 402, configured to calculate the weight of the first index layer based on the analytic hierarchy process; A second weight calculation module 403, configured to calculate the weight of the second index layer based on the improved entropy weight method; A comprehensive weight calculation module 404, configured to calculate a comprehensive weight according to the weight of the first index layer and the weight of the second index layer; A benchmark evaluation value calculation module 405, configured to calculate a benchmark comprehensive evaluation value of infrastructure adaptability according to the limit values of each index in the second index layer and the comprehensive weight; An actual evaluation value calculation module 406, configured to calculate an actual comprehensive evaluation value of infrastructure adaptability according to the actual values of each index in the second index layer and the comprehensive weight; A determination module 407, configured to compare the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure.

[0060] The comprehensive evaluation device for high-speed railway speed-up adaptability provided by the embodiments of the present invention obtains the limit values and actual values of each index in the first index layer and the first index layer respectively; calculates the weight of the first index layer based on the analytic hierarchy process; calculates the weight of the second index layer based on the improved entropy weight method; calculates the comprehensive weight according to the weight of the first index layer and the weight of the second index layer; calculates the benchmark comprehensive evaluation value of infrastructure adaptability according to the limit values of each index in the second index layer and the comprehensive weight; calculates the actual comprehensive evaluation value of infrastructure adaptability according to the actual values of each index in the second index layer and the comprehensive weight; compares the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure. The present invention is based on multi-index comprehensive evaluation, considers the line design standard, overcomes the shortcomings of subjective weighting and qualitative analysis, and solves the problem of comprehensive evaluation of the adaptability of the existing high-speed railway speed-up infrastructure.

[0061] Figure 5 An entity structure diagram of an electronic device is exemplified, as Figure 5 shown, the electronic device may include: a processor 510, a communication interface 520, a memory 530, and a communication bus 540. Among them, the processor 510, the communication interface 520, and the memory 530 complete mutual communication through the communication bus 540. The memory 530 includes computer programs, operating systems, and acquired data. The processor 510 can call the logical instructions in the memory 530 to execute the comprehensive evaluation method for high-speed railway speed-up adaptability. The method includes: respectively obtaining the limit values and actual values of each index in the first index layer and the first index layer; calculating the weight of the first index layer based on the analytic hierarchy process; calculating the weight of the second index layer based on the improved entropy weight method; calculating the comprehensive weight according to the weight of the first index layer and the weight of the second index layer; calculating the benchmark comprehensive evaluation value of infrastructure adaptability according to the limit values of each index in the second index layer and the comprehensive weight; calculating the actual comprehensive evaluation value of infrastructure adaptability according to the actual values of each index in the second index layer and the comprehensive weight; comparing the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure.

[0062] In addition, when the logical instructions in the above-mentioned memory 530 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the related technology, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0063] On the other hand, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is used to implement the comprehensive evaluation method for the adaptability of high-speed railway speed increase provided by the above-mentioned various methods. The method includes: respectively obtaining the limit values and actual values of each index in the first index layer and the first index layer; calculating the weight of the first index layer based on the analytic hierarchy process; calculating the weight of the second index layer based on the improved entropy weight method; calculating the comprehensive weight according to the weight of the first index layer and the weight of the second index layer; calculating the infrastructure adaptability benchmark comprehensive evaluation value according to the limit values of each index in the second index layer and the comprehensive weight; calculating the infrastructure adaptability actual comprehensive evaluation value according to the actual values of each index in the second index layer and the comprehensive weight; comparing the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure.

[0064] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0065] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solution, in essence, or the part that contributes to the relevant technology can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. And these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A comprehensive evaluation method for the adaptability of high-speed railway speed increase, characterized in that: include: Obtain the limit value and actual value of the first indicator layer and each indicator in the first indicator layer respectively; Calculate the weight of the first indicator layer based on the analytic hierarchy process; Calculate the weight of the second indicator layer based on the improved entropy weight method; Calculate a comprehensive weight according to the weight of the first indicator layer and the weight of the second indicator layer; Calculate the infrastructure adaptability benchmark comprehensive evaluation value according to the limit value of each indicator in the second indicator layer and the comprehensive weight; Calculate the actual comprehensive evaluation value of infrastructure adaptability according to the actual value of each indicator in the second indicator layer and the comprehensive weight; The actual comprehensive evaluation value is compared with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure.

2. The comprehensive evaluation method for high-speed railway speed-up adaptability according to claim 1 is characterized in that: The first indicator layer includes multiple professional design indicators; the second indicator layer includes adaptability evaluation indicators corresponding to each professional design indicator, and the comprehensive weight calculation formula is: in: is the final weight of the jth indicator; is the weight of the jth indicator in the first indicator layer; is the weight of the jth indicator in the second indicator layer.

3. The comprehensive evaluation method for speed-up adaptability of high-speed railway according to claim 1 or 2, characterized in that: The calculating the weight of the second indicator layer based on the improved entropy weight method includes: Collect the scores of multiple experts on the adaptability evaluation indicators and establish an evaluation matrix; The evaluation matrix is ​​processed by L2 norm normalization. The weight value of each adaptability evaluation index is obtained by calculating the entropy value corresponding to each adaptability evaluation index and multiplying it by the average value of the corresponding column of the evaluation matrix. The improved entropy weight method formula is: in, is the weight of the jth adaptability evaluation index in the second index layer; is the information entropy effectiveness; is the average value of the elements in the jth column of the normalized evaluation matrix.

4. The comprehensive evaluation method for high-speed railway speed-up adaptability according to claim 1 is characterized in that: The calculation of the first indicator layer weight based on the hierarchical analysis method includes: Constructing a judgment matrix based on the importance score of each indicator in the first indicator layer; Calculating a single-layer weight vector of each element in the judgment matrix; Performing consistency check on the single-layer weight vector; After the consistency check is passed, calculating the combined weight vectors between each two elements in the judgment matrix; A consistency check is performed on the combined weight vector, and the first indicator layer weight is obtained after the consistency check passes.

5. The comprehensive evaluation method for speed-increasing adaptability of high-speed railway according to claim 1 is characterized in that: The first indicator layer also includes: service status indicators and speed limit section total length inspection indicators; the high-speed railway speed increase adaptability comprehensive evaluation method also includes: The adaptability evaluation results of the professional design indicators are divided into three levels: unadaptable, basically adaptable, and adaptable; if the adaptability evaluation results of all professional design indicators are basically adaptable or adaptable, the service status indicator is continued to be evaluated; otherwise, it is judged that the infrastructure is not adapted to the speed-up operation condition; If all service status indicators meet the limit requirements, the total length of the speed limit section will continue to be evaluated; otherwise, it is necessary to determine whether the service status indicators that do not meet the limit requirements can be rectified and repaired. If they can be repaired, the total length of the speed limit section will continue to be evaluated after meeting the limit requirements. If they cannot be repaired, it is determined that the infrastructure is not suitable for speed-up operation conditions. If the length of the speed limit section is greater than a preset ratio of the total line length, it is judged that the infrastructure is not suitable for speed-up operating conditions.

6. The comprehensive evaluation method for high-speed railway speed-up adaptability according to claim 2 is characterized in that: It also includes normalizing the values ​​of various adaptability evaluation indicators corresponding to each major in the second indicator layer into cost indicators, specifically including: For very small indicators The following formula is used for positive transformation: For intermediate indicators The following formula is used for positive transformation: in: is the optimal value of the intermediate indicator; For interval indicators The following formula is used for positive transformation: Where: a is an interval indicator The minimum value of the optimal range interval, b is an interval indicator The maximum value of the corresponding optimal range interval; The maximum-minimum normalization method is used to convert the index The value range is scaled to [0,1] to obtain the cost index , the formula is: 。 7. The comprehensive evaluation method for speed-increasing adaptability of high-speed railway according to claim 1 is characterized in that: The comparing the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure includes: If the actual comprehensive evaluation value is less than the benchmark comprehensive evaluation value, it is determined that the existing high-speed railway infrastructure meets the speed-up requirements; otherwise, the speed-up requirement cannot be achieved; wherein, the speed-up requirement is 400 kilometers per hour.

8. A comprehensive evaluation device for the adaptability of high-speed railway speed increase, characterized in that: include: An acquisition module, used to respectively acquire the first indicator layer and the limit value and the actual value of each indicator in the first indicator layer; A first weight calculation module, used for calculating the weight of the first indicator layer based on the hierarchical analysis method; A second weight calculation module, used for calculating the weight of the second indicator layer based on the improved entropy weight method; A comprehensive weight calculation module, used for calculating a comprehensive weight according to the first indicator layer weight and the second indicator layer weight; A benchmark evaluation value calculation module, used to calculate the infrastructure adaptability benchmark comprehensive evaluation value according to the limit value of each indicator in the second indicator layer and the comprehensive weight; An actual evaluation value calculation module, used to calculate an actual comprehensive evaluation value of infrastructure adaptability according to the actual value of each indicator in the second indicator layer and the comprehensive weight; The determination module is used to compare the actual comprehensive evaluation value with the benchmark comprehensive evaluation value to determine the comprehensive adaptability of the infrastructure.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the comprehensive evaluation method for the speed-increasing adaptability of high-speed railways as described in any one of claims 1 to 7 is implemented.

10. A non-transitory readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for comprehensive evaluation of the speed-increasing adaptability of a high-speed railway as described in any one of claims 1 to 7 is implemented.

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