Method, system and device for testing safety mechanism of virtual marshalling train stopping phase

Abstract

This invention provides a method, system, and apparatus for testing the safety mechanism of a virtual train during its parking phase. The method includes: obtaining target operational test data of the virtual train during its parking phase within a platform area from operational test data; obtaining traction output data of the preceding and following cars in the virtual train from the target operational test data; conducting a platform parking safety mechanism test based on the traction output data of the preceding and following cars; and outputting the test results of the virtual train's parking safety mechanism in the platform area. This invention can verify the safety mechanism of a virtual train during its parking phase, confirming the correctness of the safety mechanism, filling the technical gap in the testing and verification of the safety mechanism during the parking phase of urban rail virtual trains, and contributing to improving the safety and efficiency of virtual train operation in urban rail transit.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a method, system and device for testing the safety mechanism of virtual train formations during the stopping phase. Background Technology

[0002] Virtual train formation technology for urban rail transit is a technology based on advanced communication and control systems that enables collaborative operation and formation of multiple trains. In recent years, virtual formation technology has received widespread attention and research in the field of urban rail transit. Through virtual formation, multiple trains can be grouped together over a certain distance and achieve coordinated operation through joint control, thereby improving the transport capacity and efficiency of the line. Virtual formation technology has significant application value in the field of urban rail transit, as it can reduce system construction and operation costs and improve train operating efficiency and safety.

[0003] In the prior art, document CN 116118816 A discloses a method for optimizing the spacing of precise stopping at virtual train platforms. This method constructs a safety protection model for precise stopping of virtual trains at platforms, constrains variables of the precise stopping interval, solves and optimizes these variables, and optimizes the spacing of precise stopping of virtual trains at platforms based on the variables and safety constraints. Additionally, document CN 110789576 B discloses a method for dividing safety protection scenarios for cooperative train formation. This method uses virtual coupling control technology to obtain the stopping time of the preceding train, the stopping time of the following train, and the traction time of the following train. By analyzing the stopping time of the preceding train, the traction time of the following train, and the stopping time of the following train, it determines the safety protection scenario for the current two train formations and implements safety protection measures.

[0004] However, current research on virtual train formation technology mainly focuses on train formation algorithms and collaborative control during operation. For example, the technical solutions disclosed in the existing technologies mentioned above lack methods and tools to verify the safety mechanism of virtual train formation during the stopping phase. This makes it difficult to verify the safety mechanism of virtual train formation during the stopping phase, thus making it impossible to accurately assess its safety performance during the stopping process.

[0005] Therefore, how to verify and test the safety mechanism of virtual train formations during the stopping phase has become a technical problem that the industry urgently needs to solve. Summary of the Invention

[0006] This invention provides a method, system, and apparatus for testing the safety mechanism during the parking phase of a virtual train formation, in order to verify and test the safety mechanism during the parking phase of a virtual train formation.

[0007] This invention provides a method for testing the safety mechanism during the stopping phase of a virtual train formation, comprising:

[0008] From the operational test data of the virtual train formation, obtain the target operational test data of the virtual train formation during the parking phase in the platform area;

[0009] From the target operation test data, obtain the traction output data of the leading car and the trailing car in the virtual train formation;

[0010] Based on the traction output data of the preceding and following trains in the train formation, a platform parking safety mechanism test is performed, and the test results of the parking safety mechanism of the virtual train formation in the platform area are output.

[0011] According to the present invention, a method for testing the safety mechanism of a virtual train during its parking phase includes performing a platform parking safety mechanism test based on the traction output data of the preceding and following trains in the train formation, and outputting the test results of the parking safety mechanism of the virtual train in the platform area.

[0012] If both the traction output data of the train ahead and the traction output data of the train behind are zero, the test result of the virtual train's parking safety mechanism in the platform area is output as passed; otherwise, the test result of the virtual train's parking safety mechanism in the platform area is output as failed.

[0013] According to the present invention, a method for testing the safety mechanism during the stopping phase of a virtual train formation, after acquiring the traction output data of the preceding car and the following car in the virtual train formation, the method further includes:

[0014] The driving data of the train ahead and the train behind are obtained from the operation test data of the virtual train formation; the driving data includes driving speed and driving time.

[0015] Based on the driving data and traction output data of the train in front of the train and the driving data and traction output data of the train behind the train, a safety mechanism test result diagram of the parking phase of the virtual train is generated.

[0016] Based on the traction output data of the leading train and the trailing train, the test results of the parking safety mechanism of the virtual train in the platform area are output, and the test results diagram of the safety mechanism are also output.

[0017] According to the present invention, a method for testing the safety mechanism of a virtual train during its stopping phase, after outputting that the test result of the virtual train stopping safety mechanism in the platform area is failed, the method further includes:

[0018] Adjust the control parameters for the stopping phase of the virtual train formation, and start a new test scenario after adjusting the control parameters for the stopping phase;

[0019] Obtain new operational test data of the virtual train formation in the platform area under the new test scenario;

[0020] Based on the new operational data, the platform parking safety mechanism test is conducted until it is determined that the test result of the virtual train's parking safety mechanism in the platform area is passed.

[0021] According to a method for testing the safety mechanism of a virtual train during its parking phase provided by the present invention, before obtaining the target operational test data of the virtual train during its parking phase in the platform area from the operational test data of the virtual train, the method further includes:

[0022] In a preset test scenario, the virtual train formation is established during the operation of the leading car and the trailing car in the formation.

[0023] Once the virtual train formation is successfully established, the original operating data of the virtual train formation is collected.

[0024] The original operating data of the virtual train formation is cleaned to obtain the operating test data of the virtual train formation.

[0025] According to a method for testing the safety mechanism of a virtual train formation during the stopping phase provided by the present invention, after establishing the virtual train formation under a preset test scenario during the operation of the preceding and following trains, the method includes:

[0026] If the establishment of the virtual train formation fails, adjust the control parameters of the virtual train formation during the stopping phase, and start a new test scenario after adjusting the control parameters of the stopping phase.

[0027] In the new test scenario, the virtual train formation is established during the operation of the leading and trailing trains until the establishment of the virtual train formation is confirmed to be successful.

[0028] This invention also provides a safety mechanism testing system for the stopping phase of a virtual train formation, comprising:

[0029] The first acquisition unit is used to acquire target operation test data of the virtual train during the parking phase in the platform area from the operation test data of the virtual train;

[0030] The second acquisition unit is used to acquire, from the target running test data, the traction output data of the leading car and the trailing car in the virtual train formation.

[0031] The first output unit is used to perform a platform parking safety mechanism test based on the traction output data of the preceding train and the traction output data of the following train, and output the parking safety mechanism test results of the virtual train in the platform area.

[0032] The present invention also provides a test device for the safety mechanism of virtual train stopping phase, comprising: a data acquisition module, a data analysis module, a data calculation module, and a test result output module; wherein the data acquisition module, the data analysis module, the data calculation module, and the test result output module are connected in sequence;

[0033] The data acquisition module is used to collect the raw operating data of the virtual train formation;

[0034] The data analysis module is used to receive the raw operating data sent by the data acquisition module, and to preprocess the raw operating data to obtain the operating test data of the virtual train; from the operating test data of the virtual train, to obtain the target operating test data of the virtual train during the stopping phase in the platform area, and from the target operating test data, to obtain the traction output data of the leading car and the trailing car in the virtual train;

[0035] The data calculation module is used to receive the traction output data of the train in front of the train and the traction output data of the train behind the train sent by the data analysis module, and generate a safety mechanism test result diagram of the parking stage of the virtual train based on the traction output data of the train in front of the train and the traction output data of the train behind the train.

[0036] The test result output module is used to receive the traction output data of the train in front of the train, the traction output data of the train behind the train, and the safety mechanism test result diagram sent by the data calculation module, and output the parking safety mechanism test result of the virtual train in the platform area based on the traction output data of the train in front of the train and the traction output data of the train behind the train, and output the safety mechanism test result diagram.

[0037] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the safety mechanism test method for the parking phase of a virtual train as described above.

[0038] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the safety mechanism test method for the parking phase of a virtual train as described above.

[0039] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the virtual train stopping phase safety mechanism test method as described above.

[0040] The present invention provides a method, system, and apparatus for testing the safety mechanism of virtual trains during the parking phase. This method obtains target operational test data of the virtual train during the parking phase within the platform area from the operational test data of the virtual train. Further, it extracts the traction output data of the leading and trailing cars in the virtual train from the target operational test data. Using this traction output data, a platform parking safety mechanism test is conducted to determine whether the traction force output data of each car's traction system meets the technical standards. Based on the determination results, the test results of the virtual train's parking safety mechanism in the platform area are output in real time. This verifies the safety mechanism of the virtual train during the parking phase, effectively verifying its correctness. It fills the technical gap in the testing and verification of the safety mechanism of virtual trains during the parking phase in urban rail transit virtual train technology, and helps improve the safety and operational efficiency of virtual train operation. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0042] Figure 1 This is one of the flowcharts illustrating the safety mechanism testing method for the parking phase of a virtual train formation provided by the present invention;

[0043] Figure 2 This is a schematic diagram of the virtual train formation scenario in the virtual train stopping phase safety mechanism test method provided by the present invention;

[0044] Figure 3 This is a schematic diagram of the safety mechanism test results in the virtual train stopping phase safety mechanism test method provided by the present invention;

[0045] Figure 4 This is a schematic diagram of the structure of the virtual train stopping phase safety mechanism testing device provided by the present invention;

[0046] Figure 5 This is the second flowchart of the safety mechanism test method for the parking phase of virtual trains provided by the present invention;

[0047] Figure 6 This is a schematic diagram of the test results of the test method for the safety mechanism of virtual train stopping phase provided by the present invention;

[0048] Figure 7 This is a schematic diagram of the structure of the virtual train stopping phase safety mechanism testing system provided by the present invention;

[0049] Figure 8 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0051] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] The following is combined Figures 1-8 This invention describes a method, system, and apparatus for testing the safety mechanism during the parking phase of a virtual train formation.

[0053] Figure 1 This is one of the flowcharts illustrating the safety mechanism testing method for the parking phase of a virtual train formation provided by the present invention, such as... Figure 1 As shown, it includes steps 110, 120 and 130.

[0054] Step 110: Obtain the target operation test data of the virtual train during the parking phase in the platform area from the operation test data of the virtual train;

[0055] Step 120: Obtain the traction output data of the leading car and the trailing car in the virtual train formation from the target running test data.

[0056] Step 130: Based on the traction output data of the train before and after the train in the formation, perform a platform parking safety mechanism test and output the test results of the virtual train parking safety mechanism in the platform area.

[0057] Specifically, the target operation test data described in the embodiments of the present invention refers to the operation test data collected when the virtual train performs the parking phase operation in any platform area of ​​each station. The parking phase refers to the phase from when the virtual train starts to stop until it comes to a complete stop at the designated parking point.

[0058] The traction output data described in this embodiment of the invention refers to the simulated traction force output by the traction system when the virtual train is stopped.

[0059] The platform parking safety mechanism test described in this embodiment refers to the test conducted on the safety mechanism of virtual trains during the parking phase in the platform area. It is used to determine whether the traction output data of each car in the leading and trailing cars of the virtual train meet the relevant technical standards when the virtual train stops in the platform area, and to verify the correctness of the safety mechanism during the parking phase of the virtual train.

[0060] In embodiments of the present invention, a pre-set data acquisition module can be used to collect basic operational data information of the virtual train formation in real time, such as the speed of the train before formation, the speed of the train after formation, the position information of each train, the acceleration of emergency braking, traction information, braking response time, and other operational test data.

[0061] Furthermore, in an embodiment of the present invention, in step 110, target operational test data of the virtual train formation during the parking phase in the platform area can be obtained by filtering from the operational test data of the virtual train formation.

[0062] Based on the above embodiments, as an optional embodiment, before obtaining the target operation test data of the virtual train during the parking phase in the platform area from the operation test data of the virtual train, the method further includes:

[0063] In a pre-set test scenario, a virtual train formation is established during the operation of the lead car and the tail car in the formation.

[0064] Once the virtual train formation is successfully established, the original operating data of the virtual train formation is collected.

[0065] Data cleaning is performed on the raw operating data of the virtual train formation to obtain the operating test data of the virtual train formation.

[0066] Specifically, in the embodiments of the present invention, a preset test scenario can be initiated by pre-setting control parameters for the parking phase of the virtual train, such as the running acceleration parameters, traction parameters, and braking rate parameters of the train before and after the train in the virtual train, so that the train before and after the train establishes a virtual train during operation until it is determined that the virtual train has been successfully established.

[0067] Figure 2 This is a schematic diagram of the virtual train formation scenario in the virtual train stopping phase safety mechanism testing method provided by the present invention, as shown in the figure. Figure 2 As shown, the leading and trailing cars in the formation, as train units, start from station 3 and run individually towards station 2. During the individual operation of each car, a virtual formation is established, allowing the leading and trailing cars to be operated and controlled as a complete train, thus forming a virtual formation train.

[0068] In an embodiment of the present invention, after the virtual train formation is successfully established, the basic operational data of the virtual train formation can be collected in real time through a pre-set data acquisition module. Initially, the collected data belongs to the original operational data of the virtual train formation and further data preprocessing is required, such as data cleaning of the original operational data of the virtual train formation, including handling outliers and missing values, etc., so that clean and accurate collected data can be generated and the operational test data of the virtual train formation can be obtained.

[0069] The method of this invention establishes a virtual train formation under a preset test scenario, collects the original operating data of the virtual train formation in real time, and performs data preprocessing on the collected original operating data to ensure the accuracy and availability of the collected data, providing an accurate and reliable data source for subsequent verification tests, so as to provide accurate and reliable test results and accurately verify the parking safety mechanism of the virtual train formation in the platform area.

[0070] Based on the above embodiments, as an optional embodiment, after establishing a virtual train formation during the operation of the preceding and following trains in a preset test scenario, the method includes:

[0071] If the virtual train formation fails to be established, adjust the control parameters for the stopping phase of the virtual train and start a new test scenario after adjusting the control parameters for the stopping phase.

[0072] In the new test scenario, a virtual train formation is established during the operation of the lead car and the tail car, until the establishment of the virtual train formation is confirmed to be successful.

[0073] Specifically, the parking phase control parameters described in the embodiments of the present invention refer to the basic operating parameters of each train in the virtual train formation during the parking phase in the test scenario. These parameters may include the running acceleration parameters, traction parameters, braking rate parameters, response time, etc. of the train before and after the formation.

[0074] In an embodiment of the present invention, after a virtual train formation is established during the operation of the lead train and the follow train, if it is determined that the establishment of the virtual train formation has failed, the control parameters of the stopping phase of each train formation can be readjusted to set up a new test scenario.

[0075] Furthermore, after initiating a new test scenario with adjusted stopping phase control parameters, the lead and follow-up trains in the train formation begin operating in single-car mode. During operation, a virtual train formation is re-established for the lead and follow-up trains. If the virtual train formation still fails to be established, the stopping phase control parameters of the train formation are adjusted again, a new test scenario is initiated, and attempts are made to establish the virtual train formation between the lead and follow-up trains until it is confirmed that the virtual train formation is successfully established and the lead and follow-up trains form a virtual train formation.

[0076] The method of this invention continuously adjusts the control parameters of the parking phase of each train in the virtual train formation, optimizes the operating parameters of the test scenario, until the virtual formation relationship between the front and rear trains is successfully established, thus forming a virtual train formation. This provides reliable technical support and guarantee for the application of urban rail virtual formation technology in urban rail transit systems, and helps to improve the efficiency and safety of virtual train formation operation.

[0077] Furthermore, in an embodiment of the present invention, in step 120, data of the collected train traction system are filtered from the target operation test data to obtain the traction output data of the leading car and the trailing car in the virtual train formation.

[0078] In embodiments of the present invention, the safety mechanism of the virtual train's parking phase is tested by utilizing the traction output data of the leading car and the trailing car in the virtual train formation, specifically during the parking phase. This effectively verifies the parking safety performance of the virtual train formation.

[0079] Furthermore, in an embodiment of the present invention, in step 130, a platform parking safety mechanism test is performed based on the traction output data of the leading car and the trailing car in the train formation. Specifically, the traction output data of the leading car and the trailing car in the train formation can be compared and analyzed with the parking safety mechanism technical standards to determine whether the traction output data of each car meets the above technical standards. Based on the determination result, the parking safety mechanism test result of the virtual train formation in the platform area is output to verify the parking safety performance of the virtual train formation.

[0080] The virtual train parking safety mechanism testing method of this invention obtains target operation test data of the virtual train during the parking phase in the platform area from the operation test data of the virtual train. Further, it extracts the traction output data of the leading and trailing cars in the virtual train from the target operation test data. Using this traction output data, it conducts a platform parking safety mechanism test to determine whether the traction force output data of each car's traction system meets the technical standard requirements. Based on the determination result, it outputs the parking safety mechanism test results of the virtual train in the platform area in real time. This verifies the safety mechanism of the virtual train during the parking phase, effectively verifying the correctness of the safety mechanism. It fills the technical gap in the testing and verification of the safety mechanism of virtual train parking phase in urban rail virtual train technology, and helps improve the safety and operational efficiency of virtual train operation in urban rail.

[0081] Based on the above embodiments, as an optional embodiment, step 130 involves performing a platform parking safety mechanism test based on the traction output data of the preceding and following trains in the train formation, and outputting the test results of the virtual train's parking safety mechanism in the platform area, including:

[0082] If both the traction output data of the train ahead and the traction output data of the train behind are zero, the test result of the virtual train's parking safety mechanism in the platform area is passed; otherwise, the test result of the virtual train's parking safety mechanism in the platform area is failed.

[0083] Specifically, in the embodiments of the present invention, the technical standard for the safety mechanism during the parking phase requires that the traction output data of the leading car in the virtual train formation be 0, and the traction output data of the trailing car in the formation also be 0.

[0084] Furthermore, in an embodiment of the present invention, if it is determined that the traction output data of the train before the formation and the traction output data of the train after the formation are both 0, it indicates that the safety mechanism of the virtual train in the platform area during the parking phase meets the technical standard requirements, and the test result of the virtual train parking safety mechanism in the platform area is passed.

[0085] Otherwise, in the embodiments of the present invention, if it is determined that either the traction output data of the train in front of the train or the traction output data of the train behind the train is not 0, including the three cases where neither the traction output data of the train in front of the train nor the traction output data of the train behind the train are 0, only the traction output data of the train in front of the train is 0, and only the traction output data of the train behind the train is 0, then it indicates that the safety mechanism of the virtual train in the platform area does not meet the technical standard requirements, and the test result of the virtual train in the platform area parking safety mechanism is output as failing.

[0086] The method of this invention, by judging whether the traction output data of the leading and trailing cars in a virtual train formation meets the technical standard requirements, can effectively verify and test the safety mechanism of the virtual train formation during the parking phase. It can accurately evaluate the safety performance of the virtual train formation during the parking phase, effectively combining actual operating conditions and analysis techniques, and improving the accuracy and reliability of the test results.

[0087] Based on the above embodiments, as an optional embodiment, after acquiring the traction output data of the leading car and the trailing car in the virtual train formation, the method further includes:

[0088] The driving data of the train before and after the train in the virtual train formation test data are obtained; the driving data includes driving speed and driving time.

[0089] Based on the driving data and traction output data of the train in front of the train and the driving data and traction output data of the train behind the train, a test result diagram of the safety mechanism of the virtual train during the parking phase is generated.

[0090] Based on the traction output data of the train ahead and the train behind, the test results of the parking safety mechanism of the virtual train in the platform area are output, and the test results diagram of the safety mechanism are also output.

[0091] Specifically, in embodiments of the present invention, the driving data of the lead car and the tail car throughout the entire operation of the virtual train formation can be further filtered from the operation test data of the virtual train formation, including the driving speed and driving time of each car.

[0092] In an embodiment of the present invention, by performing graphic calculation processing on the driving data and traction output data of the train in front of the train and the driving data and traction output data of the train behind the train, respectively, a safety mechanism test result diagram of the parking stage of the train in front of the train and a safety mechanism test result diagram of the parking stage of the train behind the train are generated, thereby obtaining a safety mechanism test result diagram of the parking stage of the virtual train.

[0093] In an embodiment of the present invention, by judging the driving data and traction output data of the train in front of the train, the test results of the parking safety mechanism of the virtual train in the platform area are output. At the same time, the test results diagram of the safety mechanism is also output to facilitate further analysis and evaluation by the testers.

[0094] Figure 3 This is a schematic diagram of the safety mechanism test results in the virtual train stopping phase safety mechanism test method provided by the present invention, as shown in the figure. Figure 3 As shown, Figure 3 (a) in the figure shows the test results of the safety mechanism during the parking phase of the leading car in the virtual train formation. Figure 3 Figure (b) shows the test results of the safety mechanism during the parking phase of the rear car in the virtual train formation. In each safety mechanism test result figure, the horizontal axis represents time in seconds (s), and the vertical axis represents speed in centimeters per second (cm / s). The figure shows the speed change information of the preceding or following car throughout the test. The solid line at the bottom represents the traction output data of 0 captured during the parking phase. Combined with... Figure 3 As shown in (a) and (b), the test time started from 0 to 20000s. During each stopping phase of the virtual train formation, the traction output data of the train before and after the train formation were both 0, which met the technical standard requirements of the platform parking safety mechanism. The test results were all passed.

[0095] The method of this invention collects driving data and traction output data of virtual train formations, performs mapping calculations, and generates a safety mechanism test result diagram. This method can accurately, quickly, and intuitively verify the correctness of the safety mechanism during the parking phase of virtual train formations, and helps to improve the convenience and efficiency of testing the safety mechanism during the parking phase of virtual train formations.

[0096] Based on the above embodiments, as an optional embodiment, after the test result of the virtual train's stopping safety mechanism in the platform area is deemed unsuccessful, the method further includes:

[0097] Adjust the control parameters for the parking phase of the virtual train formation and start a new test scenario after adjusting the control parameters for the parking phase;

[0098] Acquire new operational test data of virtual train formations in the platform area under new test scenarios;

[0099] Based on the new operational data, platform parking safety mechanism tests were conducted until the test results for the virtual train formation parking safety mechanism in the platform area were determined to be passed.

[0100] Specifically, in an embodiment of the present invention, after determining that the test result of the parking safety mechanism of the output virtual train in the platform area is unsuccessful, the parking stage control parameters of each train can be readjusted. As can be understood from the previous description, the parking accuracy control parameters may include the running acceleration parameters, traction parameters, braking rate parameters, response time, etc. of the train before and after the train. Then, based on the adjusted parking stage control parameters, a new test scenario is set and started.

[0101] Furthermore, in an embodiment of the present invention, in a new test scenario after adjusting the control parameters of the parking phase, new operational test data of the virtual train in the platform area under the new test scenario is acquired again. Based on the new operational test data, the platform parking safety mechanism test can be performed according to the data processing flow described in the aforementioned test scenario. If it is determined that the output result of the virtual train parking safety mechanism test in the platform area is a failure, the parking phase control parameters are adjusted again, the new test scenario is restarted, and the platform parking safety mechanism test of the virtual train continues based on the acquired new operational test data of the virtual train in the platform area until it is determined that the output result of the virtual train parking safety mechanism test in the platform area is a pass.

[0102] The method of this invention continuously adjusts the control parameters of the stopping phase of the train and optimizes the operating parameters of the test scenario until the test result of the parking safety mechanism of the virtual train in the platform area is determined to be passed. This provides reliable technical support and guarantee for the application of urban rail virtual train formation technology in urban rail transit systems and helps to improve the efficiency and safety of virtual train formation operation.

[0103] Figure 4 This is a schematic diagram of the structure of the virtual train stopping phase safety mechanism testing device provided by the present invention, as shown below. Figure 4 As shown, it includes: a data acquisition module 410, a data analysis module 420, a data calculation module 430, and a test result output module 440; the data acquisition module 410, the data analysis module 420, the data calculation module 430, and the test result output module 440 are connected in sequence;

[0104] The data acquisition module 410 is used to collect the raw operating data of the virtual train formation;

[0105] The data analysis module 420 is used to receive the raw operating data sent by the data acquisition module 410, and to perform data preprocessing on the raw operating data to obtain the operating test data of the virtual train; from the operating test data of the virtual train, the target operating test data of the virtual train during the parking phase in the platform area is obtained, and from the target operating test data, the traction output data of the leading car and the trailing car in the virtual train are obtained;

[0106] The data calculation module 430 is used to receive the traction output data of the train before the formation and the traction output data of the train after the formation sent by the data analysis module 420, and generate a safety mechanism test result diagram of the parking stage of the virtual train based on the traction output data of the train before the formation and the traction output data of the train after the formation.

[0107] The test result output module 440 is used to receive the traction output data of the train before the formation, the traction output data of the train after the formation, and the safety mechanism test result diagram sent by the data calculation module 430. Based on the traction output data of the train before the formation and the traction output data of the train after the formation, it outputs the parking safety mechanism test results of the virtual train in the platform area and outputs the safety mechanism test result diagram.

[0108] Specifically, in the embodiments of the present invention, after designing the test scenario and starting the virtual train to run normally, the data acquisition module is used to collect the original operating data of the virtual train. Specifically, it is responsible for collecting the operating data of the virtual train, collecting the basic operating data information of the train before and after the formation and the train after the formation in real time, such as the original operating data of the train speed, position information, and train traction output information, and sending the collected original operating data to the data analysis module.

[0109] In an embodiment of the present invention, the data analysis module receives the raw operating data sent by the data acquisition module and performs data preprocessing on the raw operating data, such as data cleaning to process outliers and missing values, to obtain accurate and usable virtual train formation operation test data. Furthermore, the data analysis module will also perform feature extraction, data classification, and data filtering on the preprocessed operation test data to filter out the virtual train formation operation test data in the platform area from the virtual train formation operation test data.

[0110] Next, the data analysis module continues to filter out the target operation test data for the parking phase from the operation test data of these platform areas, and further filters out the traction output data of the leading car and the trailing car in the virtual train formation from the target operation test data, and sends this traction output data to the data calculation module.

[0111] Optionally, in this embodiment, the data analysis module filters the driving data of the virtual train formation from the operation test data of the virtual train formation, including the driving speed and driving time of the train in front of the formation, and the driving speed and driving time of the train behind the formation, and sends this driving data to the data calculation module.

[0112] In embodiments of the present invention, the data calculation module receives traction output data and driving data of the leading train and the trailing train from the data analysis module. Based on this data, it extracts data and calculates the test results for the leading and trailing trains. Specifically, the data calculation module generates a safety mechanism test result diagram for the stopping phase of the leading train based on its traction output data and driving data, and generates a safety mechanism test result diagram for the stopping phase of the trailing train based on its traction output data and driving data. This yields a safety mechanism test result diagram for the stopping phase of the virtual train formation, which is then output through the test result output module.

[0113] At the same time, the data calculation module will also send the traction output data of the leading vehicle in the formation and the traction output data of the trailing vehicle in the formation to the test result output module.

[0114] In embodiments of the present invention, the test result output module is used to output test results, including test result graphs and test result tables. The module pre-stores technical standard data on the safety mechanism of the virtual train's parking phase. By comparing and analyzing the received traction output data with the pre-stored technical standard data, if both the traction output data of the preceding and following trains in the train formation are zero, the module outputs a "pass" result for the virtual train's parking safety mechanism test in the platform area and prints this result; otherwise, it outputs a "fail" result and prints this result. Simultaneously, the module outputs a safety mechanism test result graph sent by the data calculation module for easy viewing and further analysis by test personnel.

[0115] The device in this invention, through modular design, collects actual operational test data of virtual trains during the parking phase in the platform area, processes and analyzes key indicators, compares them with preset technical standards, and judges the correctness of the safety mechanism of the virtual trains during the parking phase. It can accurately verify the parking safety performance of virtual trains in the platform area, comprehensively evaluate the safety performance of virtual trains, and provide important technical support for the safe operation of urban rail virtual trains.

[0116] Figure 5 This is the second flowchart illustrating the safety mechanism testing method for the parking phase of a virtual train formation provided by this invention. Figure 5As shown, in an embodiment of the present invention, the testing process can be further divided into the following steps:

[0117] Step 51, Test Scenario Design and Description. Design the train to complete the virtual formation and run in virtual formation mode according to the fixed operation route. When the virtual formation train enters the station and stops and comes to a complete stop, collect the operation test data of the train before and after the formation.

[0118] Step 52: Set up the testing device. The testing device includes the data acquisition module, data analysis module, data calculation module, and test result output module described above.

[0119] Step 53, Test Device Connection. Connect the test device to the recording board of the virtual train's onboard equipment, and ensure that the test device can normally receive the actual operating data sent by the onboard equipment.

[0120] Step 54: Execute the test scenario and collect test data. In this step, the train is started according to the test scenario designed in Step 51. After the virtual train formation is successfully established, the train enters the virtual train formation mode. During the virtual train formation operation and station stop, the data acquisition module of the test device collects the operation test data of the virtual train formation in real time.

[0121] Step 55, Test Data Calculation. The data analysis module of the testing device performs feature extraction, classification, and filtering on the collected data. During data analysis, it needs to determine whether the currently collected data belongs to the platform area. If the analysis result is not platform area data, it returns to continue data collection. If the platform area data condition is met, it determines whether the front and rear cars of the train are in a parking phase. If so, the running test data collected during the parking phase is classified, and the traction output data of the front and rear cars of the virtual train is extracted. The traction output data of the front and rear cars are filtered out and output to the data calculation module; otherwise, the data preprocessing steps of the original running data of the virtual train continue.

[0122] Step 56, Test Data Calculation. Using the data calculation module of the testing device, the analog data of the traction output of the leading and trailing vehicles in the train are calculated based on the traction output data of the leading and trailing vehicles. This results in the calculation of the safety mechanism test results diagrams for both the leading and trailing vehicles during their parking phases.

[0123] Step 57, Test Result Output. The test result output module of the testing device verifies the safety mechanism of the parking phase based on the traction output data of the leading vehicle and the trailing vehicle sent by the data calculation module. If the following conditions are met: "Traction output value of the leading vehicle = 0 and traction output value of the trailing vehicle = 0", the test result output is "pass"; otherwise, the test result output is "fail".

[0124] The test result output module outputs the test results in a table, which displays the specific values ​​related to the test results and outputs test result graphs, including test result graphs of the safety mechanism during the stopping phase of the leading vehicle in the train and the stopping phase of the trailing vehicle in the train, so that testers can intuitively view the test results.

[0125] Figure 6 This is a schematic diagram illustrating the test results of the virtual train formation stopping phase safety mechanism test method provided by the present invention, as shown below. Figure 6 As shown, the test result information list includes the stopping platform, platform type, train formation type, train number, traction output analog value (i.e. traction output data), and test results of the tested train. It can be seen that in the test results of the virtual train formation at each platform, the traction output data of the train before formation and the train after formation are both 0, and the test results are all passed.

[0126] Step 58, Test Analysis and Evaluation. Each test using this testing method and device can output the test results in a visual format, facilitating further analysis and evaluation by testers. Testers can compare the output results with the expected performance indicators for evaluation and improvement. If the test result is unsuccessful, testers can analyze the specific values ​​output, modify the stopping phase control parameters in the train entry and parking cooperative control algorithm, and reset the test scenario to verify the safety mechanism of the virtual train parking phase.

[0127] The method of this invention, by collecting actual operating data of virtual train formations, applying analytical techniques, and calculating relevant indicators, accurately verifies the safety mechanism of virtual train formations during the stopping phase, filling the technical gap in the testing and verification of safety mechanisms during the stopping phase of existing urban rail virtual train formation technologies. Simultaneously, this invention outputs the test results in a visual graph format, making the results more intuitive and easier to understand, facilitating rapid judgment and analysis by testers, and helping them to promptly identify system risks and problems. By continuously adjusting and optimizing the control parameters of the test scenario, it provides optimization solutions for system operating efficiency, reduces safety risks and potential failures, and improves system reliability and operating efficiency, contributing important technical support for the research and application of urban rail virtual train formation systems.

[0128] The following describes the virtual train parking safety mechanism testing system provided by the present invention. The virtual train parking safety mechanism testing system described below and the virtual train parking safety mechanism testing method described above can be referred to in correspondence.

[0129] Figure 7 This is a schematic diagram of the structure of the virtual train stopping phase safety mechanism testing system provided by the present invention, as shown below. Figure 7 As shown, it includes:

[0130] The first acquisition unit 710 is used to acquire target operation test data of the virtual train during the parking phase in the platform area from the operation test data of the virtual train;

[0131] The second acquisition unit 720 is used to acquire the traction output data of the leading car and the trailing car in the virtual train formation from the target running test data.

[0132] The first output unit 730 is used to perform platform parking safety mechanism tests based on the traction output data of the preceding and following trains in the train formation, and output the test results of the parking safety mechanism of the virtual train formation in the platform area.

[0133] The virtual train stopping phase safety mechanism testing system described in this embodiment can be used to execute the above-described virtual train stopping phase safety mechanism testing method embodiment. Its principle and technical effect are similar, and will not be repeated here.

[0134] The virtual train parking safety mechanism testing system provided by this invention obtains target operational test data of the virtual train during the parking phase in the platform area from the operational test data of the virtual train. Further, it extracts the traction output data of the leading and trailing cars in the virtual train from the target operational test data. Using this traction output data, it conducts platform parking safety mechanism testing to determine whether the traction force output data of each car's traction system meets the technical standard requirements. Based on the determination results, it outputs the parking safety mechanism test results of the virtual train in the platform area in real time. This verifies the safety mechanism of the virtual train during the parking phase, effectively verifying the correctness of the safety mechanism. It fills the technical gap in the testing and verification of the safety mechanism of virtual train parking phase in urban rail virtual train technology, and helps improve the safety and operational efficiency of virtual train operation in urban rail.

[0135] Figure 8 This is a schematic diagram of the physical structure of the electronic device provided by the present invention, such as... Figure 8As shown, the electronic device may include a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call logical instructions in the memory 830 to execute the virtual train parking phase safety mechanism test method provided by the above methods. The method includes: obtaining target operation test data of the virtual train parking phase in the platform area from the operation test data of the virtual train; obtaining the traction output data of the leading car and the trailing car in the virtual train from the target operation test data; performing a platform parking safety mechanism test based on the traction output data of the leading car and the trailing car, and outputting the parking safety mechanism test result of the virtual train in the platform area.

[0136] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, 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 to cause a computer device (which may be a personal computer, server, or 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 capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0137] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the virtual train parking phase safety mechanism testing method provided by the above methods. The method includes: obtaining target operation test data of the virtual train parking phase in the platform area from the operation test data of the virtual train; obtaining traction output data of the leading car and the trailing car in the virtual train from the target operation test data; performing a platform parking safety mechanism test based on the traction output data of the leading car and the trailing car; and outputting the parking safety mechanism test result of the virtual train in the platform area.

[0138] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements a method for testing the safety mechanism of a virtual train during its parking phase provided by the methods described above. This method includes: obtaining target operational test data of the virtual train during its parking phase in the platform area from operational test data of the virtual train; obtaining traction output data of the preceding and following cars in the virtual train from the target operational test data; performing a platform parking safety mechanism test based on the traction output data of the preceding and following cars; and outputting the parking safety mechanism test result of the virtual train in the platform area.

[0139] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0140] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, 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 cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions 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 method for testing the safety mechanism during the stopping phase of a virtual train formation, characterized in that, include: From the operational test data of the virtual train formation, obtain the target operational test data of the virtual train formation during the parking phase in the platform area; From the target operation test data, obtain the traction output data of the leading car and the trailing car in the virtual train formation; Based on the traction output data of the train ahead and the train behind, a platform parking safety mechanism test is performed, and the test results of the virtual train parking safety mechanism in the platform area are output. The test of the platform parking safety mechanism based on the traction output data of the preceding and following trains in the train formation, and the output of the test results of the parking safety mechanism of the virtual train in the platform area, include: If both the traction output data of the train ahead and the traction output data of the train behind are zero, the test result of the virtual train's parking safety mechanism in the platform area is output as passed; otherwise, the test result of the virtual train's parking safety mechanism in the platform area is output as failed.

2. The test method for the safety mechanism of virtual train formation during the stopping phase according to claim 1, characterized in that, After acquiring the traction output data of the leading car and the trailing car in the virtual train formation, the method further includes: The driving data of the train ahead and the train behind are obtained from the operation test data of the virtual train formation; the driving data includes driving speed and driving time. Based on the driving data and traction output data of the train in front of the train and the driving data and traction output data of the train behind the train, a safety mechanism test result diagram of the parking phase of the virtual train is generated. Based on the traction output data of the leading train and the trailing train, the test results of the parking safety mechanism of the virtual train in the platform area are output, and the test results diagram of the safety mechanism are also output.

3. The test method for the safety mechanism of virtual train formation during the stopping phase according to claim 1, characterized in that, After the test result of the virtual train's parking safety mechanism in the platform area is deemed unsuccessful, the method further includes: Adjust the control parameters for the stopping phase of the virtual train formation, and start a new test scenario after adjusting the control parameters for the stopping phase; Obtain new operational test data of the virtual train formation in the platform area under the new test scenario; Based on the new operational data, the platform parking safety mechanism test is conducted until it is determined that the test result of the virtual train's parking safety mechanism in the platform area is passed.

4. The test method for the safety mechanism of virtual train formation during the stopping phase according to any one of claims 1-3, characterized in that, Before obtaining the target operational test data of the virtual train during its parking phase in the platform area from the operational test data of the virtual train, the method further includes: In a preset test scenario, the virtual train formation is established during the operation of the leading car and the trailing car in the formation. Once the virtual train formation is successfully established, the original operating data of the virtual train formation is collected. The original operating data of the virtual train formation is cleaned to obtain the operating test data of the virtual train formation.

5. The test method for the safety mechanism of virtual train formation during the stopping phase according to claim 4, characterized in that, After establishing the virtual train formation during the operation of the lead car and the follow car in the preset test scenario, the method includes: If the establishment of the virtual train formation fails, adjust the control parameters of the virtual train formation during the stopping phase, and start a new test scenario after adjusting the control parameters of the stopping phase. In the new test scenario, the virtual train formation is established during the operation of the leading and trailing trains until the establishment of the virtual train formation is confirmed to be successful.

6. A test system for the safety mechanism of a virtual train formation during the stopping phase, characterized in that, include: The first acquisition unit is used to acquire target operation test data of the virtual train during the parking phase in the platform area from the operation test data of the virtual train; The second acquisition unit is used to acquire, from the target running test data, the traction output data of the leading car and the trailing car in the virtual train formation. The first output unit is used to perform a platform parking safety mechanism test based on the traction output data of the preceding train and the traction output data of the following train, and output the parking safety mechanism test results of the virtual train in the platform area. The test of the platform parking safety mechanism based on the traction output data of the preceding and following trains in the train formation, and the output of the test results of the parking safety mechanism of the virtual train in the platform area, include: If both the traction output data of the train ahead and the traction output data of the train behind are zero, the test result of the virtual train's parking safety mechanism in the platform area is output as passed; otherwise, the test result of the virtual train's parking safety mechanism in the platform area is output as failed.

7. A test device for the safety mechanism of a virtual train formation during the stopping phase, characterized in that, include: The system includes a data acquisition module, a data analysis module, a data calculation module, and a test result output module. The data acquisition module, the data analysis module, the data calculation module, and the test result output module are connected in sequence; The data acquisition module is used to collect the raw operating data of the virtual train formation; The data analysis module is used to receive the raw operating data sent by the data acquisition module, and to perform data preprocessing on the raw operating data to obtain the operating test data of the virtual train formation. From the operation test data of the virtual train, obtain the target operation test data of the virtual train during the parking phase in the platform area, and from the target operation test data, obtain the traction output data of the leading car and the trailing car in the virtual train. The data calculation module is used to receive the traction output data of the train in front of the train and the traction output data of the train behind the train sent by the data analysis module, and generate a safety mechanism test result diagram of the parking stage of the virtual train based on the traction output data of the train in front of the train and the traction output data of the train behind the train. The test result output module receives the traction output data of the leading train, the trailing train, and the safety mechanism test result diagram sent by the data calculation module. Based on the traction output data of the leading and trailing trains, it outputs the parking safety mechanism test result of the virtual train in the platform area and the safety mechanism test result diagram. Specifically, if both the traction output data of the leading and trailing trains are zero, the parking safety mechanism test result of the virtual train in the platform area is output as passed; otherwise, the parking safety mechanism test result of the virtual train in the platform area is output as failed.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the test method for the safety mechanism of the virtual train stopping phase as described in any one of claims 1 to 5.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the test method for the safety mechanism of the virtual train stopping phase as described in any one of claims 1 to 5.

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