CN117227797A

CN117227797A - Virtual marshalling train parking stage safety mechanism testing method, system and device

Info

Publication number: CN117227797A
Application number: CN202310994081.0A
Authority: CN
Inventors: 冷文俊
Original assignee: Traffic Control Technology TCT Co Ltd
Current assignee: Beijing Jiaotong University; Traffic Control Technology TCT Co Ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2023-12-15

Abstract

The invention provides a method, a system and a device for testing a safety mechanism of a virtual marshalling train in a parking stage, wherein the method comprises the following steps: acquiring target operation test data of the virtual marshalling train in a parking stage in a platform area from the operation test data of the virtual marshalling train; acquiring traction output data of a vehicle before the marshalling and traction output data of a vehicle after the marshalling in the virtual marshalling train from target operation test data; and carrying out a platform parking safety mechanism test based on traction output data of the vehicles before the consist and traction output data of the vehicles after the consist, and outputting a parking safety mechanism test result of the virtual consist train in a platform area. The invention can realize verification test of the safety mechanism of the virtual marshalling train in the parking stage, verify the correctness of the safety mechanism of the virtual marshalling train in the parking stage, fill the technical blank of the urban rail virtual marshalling technology in the aspect of the verification of the safety mechanism test of the virtual marshalling train in the parking stage, and is beneficial to improving the safety and the efficiency of the virtual marshalling operation of the urban rail train.

Description

Virtual marshalling train parking stage safety mechanism testing method, system and device

Technical Field

The invention relates to the technical field of rail transit, in particular to a method, a system and a device for testing a safety mechanism of a virtual marshalling train in a parking stage.

Background

The virtual marshalling technology for urban rail trains is based on advanced communication and control system and is used in realizing cooperative running and marshalling operation among multiple trains. In recent years, virtual marshaling technology has been widely focused and studied in the field of urban rail transit. The virtual marshalling technology of urban rail trains can marshal multiple trains within a certain distance through virtual marshalling, and realize cooperative operation through joint control, so that the transportation capacity and efficiency of the line are improved. The virtual marshalling technology has important application value in the urban rail traffic field, can reduce the system construction and operation cost, and improves the running efficiency and safety of the train.

In the prior art, a document with publication number CN 116118816A discloses a distance optimization method for precisely stopping a virtual marshalling train platform, which is characterized in that a safety protection model for precisely stopping the virtual marshalling train platform is constructed, a variable for precisely stopping the virtual marshalling train platform is restrained, the variable is solved and optimized, and the distance between the virtual marshalling train platform and the precise stopping of the virtual marshalling train platform is optimized based on the variable and the safety restraint. In addition, a method for dividing the safety protection scenes of the cooperative formation trains is disclosed in a document with the publication number of CN 110789576B, wherein the parking time of a front vehicle, the parking time of a rear vehicle and the traction time of the rear vehicle are obtained through a virtual connection control technology, and the safety protection scenes of the current two formation trains are determined for safety protection through judgment and analysis of the parking time of the front vehicle, the traction time of the rear vehicle and the parking time of the rear vehicle.

However, at present, research on the existing urban rail virtual marshalling technology is mainly focused on aspects of a train marshalling algorithm, cooperative control in the running process and the like, and as the technical scheme disclosed in the prior art is lack of a method and a tool for verifying the safety mechanism of the virtual marshalling train in the parking stage, the verification of the safety mechanism of the virtual marshalling train in the parking stage is difficult, and therefore the safety performance of the virtual marshalling train in the parking stage cannot be accurately evaluated.

Therefore, how to verify and test the safety mechanism of the virtual marshalling train in the parking stage is a technical problem to be solved in the industry.

Disclosure of Invention

The invention provides a method, a system and a device for testing a safety mechanism of a virtual marshalling train in a parking stage, which are used for realizing verification test of the safety mechanism of the virtual marshalling train in the parking stage.

The invention provides a method for testing a safety mechanism of a virtual marshalling train in a parking stage, which comprises the following steps:

acquiring target operation test data of a parking stage of the virtual marshalling train in a platform area from operation test data of the virtual marshalling train;

acquiring traction output data of a front vehicle and traction output data of a rear vehicle in the virtual marshalling train from the target operation test data;

And carrying out a platform parking safety mechanism test based on the traction output data of the vehicles before the consist and the traction output data of the vehicles after the consist, and outputting a parking safety mechanism test result of the virtual consist train in the platform area.

According to the method for testing the safety mechanism of the virtual marshalling train in the parking stage, which is provided by the invention, the platform parking safety mechanism test is carried out based on the traction output data of the marshalling front train and the traction output data of the marshalling rear train, and the parking safety mechanism test result of the virtual marshalling train in the platform area is output, and the method comprises the following steps:

outputting a parking safety mechanism test result of the virtual marshalling train in the platform area under the condition that the traction output data of the pre-marshalling train and the traction output data of the post-marshalling train are zero; otherwise, outputting a parking safety mechanism test result of the virtual marshalling train in the platform area to be failed.

According to the method for testing the safety mechanism of the virtual marshalling train in the parking stage, after the traction output data of the front marshalling train and the traction output data of the rear marshalling train in the virtual marshalling train are obtained, the method further comprises the following steps:

Acquiring running data of the vehicles before the marshalling and running data of the vehicles after the marshalling from running test data of the virtual marshalling train; the running data comprise a running speed and a running time;

generating a safety mechanism test result diagram of the parking stage of the virtual marshalling train based on the driving data and traction output data of the marshalling front train and the driving data and traction output data of the marshalling rear train;

and outputting a parking safety mechanism test result of the virtual marshalling train in the platform area based on the traction output data of the front marshalling train and the traction output data of the rear marshalling train, and outputting a safety mechanism test result graph.

According to the method for testing the safety mechanism of the virtual marshalling train in the parking stage, after the output of the test result of the parking safety mechanism of the virtual marshalling train in the platform area is not passed, the method further comprises the following steps:

adjusting the parking stage control parameters of the virtual marshalling train, and starting a new test scene after the parking stage control parameters are adjusted;

acquiring new operation test data of the virtual marshalling train in the platform area under the new test scene;

And carrying out the parking safety mechanism test of the platform based on the new operation data until the output of the parking safety mechanism test result of the virtual marshalling train in the platform area is determined to pass.

According to the method for testing the safety mechanism of the parking stage of the virtual marshalling train, which is provided by the invention, before the target operation test data of the parking stage of the virtual marshalling train in the platform area is obtained from the operation test data of the virtual marshalling train, the method further comprises the following steps:

under a preset test scene, the virtual marshalling train is established in the running process of the marshalling front train and the marshalling rear train;

under the condition that the virtual marshalling train is established successfully, acquiring original operation data of the virtual marshalling train;

and performing data cleaning on the original operation data of the virtual marshalling train to obtain operation test data of the virtual marshalling train.

According to the method for testing the safety mechanism of the virtual marshalling train in the parking stage, after the virtual marshalling train is established in the running process of the front marshalling train and the rear marshalling train in the preset test scene, the method comprises the following steps:

Under the condition that the virtual marshalling train is determined to fail to be established, adjusting the parking stage control parameters of the virtual marshalling train, and starting a new test scene after the parking stage control parameters are adjusted;

and under the new test scene, the virtual marshalling train is established in the running process of the pre-marshalling train and the post-marshalling train until the virtual marshalling train is established successfully.

The invention also provides a system for testing the safety mechanism of the virtual marshalling train in the parking stage, which comprises the following steps:

the first acquisition unit is used for acquiring target operation test data of the virtual marshalling train in a parking stage in a platform area from operation test data of the virtual marshalling train;

the second acquisition unit is used for acquiring traction output data of a vehicle before the marshalling and traction output data of a vehicle after the marshalling in the virtual marshalling train from the target operation test data;

and the first output unit is used for carrying out a platform parking safety mechanism test based on the traction output data of the vehicles before the marshalling and the traction output data of the vehicles after the marshalling and outputting a parking safety mechanism test result of the virtual marshalling train in the platform area.

The invention also provides a device for testing the safety mechanism of the virtual marshalling train in the parking stage, which comprises the following components: the device comprises 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 sequentially connected;

the data acquisition module is used for acquiring original operation data of the virtual marshalling train;

the data analysis module is used for receiving the original operation data sent by the data acquisition module, and carrying out data preprocessing on the original operation data to obtain operation test data of the virtual marshalling train; acquiring target operation test data of a parking stage of the virtual marshalling train in a platform area from operation test data of the virtual marshalling train, and acquiring traction output data of a front marshalling train and traction output data of a rear marshalling train in the virtual marshalling train from the target operation test data;

the data calculation module is used for receiving the traction output data of the front vehicle and the traction output data of the rear vehicle, which are sent by the data analysis module, and generating a safety mechanism test result diagram of the parking stage of the virtual marshalling train based on the traction output data of the front vehicle and the traction output data of the rear vehicle;

The test result output module is used for receiving the traction output data of the front vehicle, the traction output data of the rear vehicle and the safety mechanism test result graph, which are sent by the data calculation module, and outputting the parking safety mechanism test result of the virtual marshalling train in the platform area according to the traction output data of the front vehicle and the traction output data of the rear vehicle, and outputting the safety mechanism test result graph.

The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the method for testing the safety mechanism of the virtual marshalling train parking stage when executing the program.

The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a virtual consist train stopping phase safety mechanism testing method as described in any one of the above.

The invention also provides a computer program product comprising a computer program which when executed by a processor implements a virtual consist train stopping phase safety mechanism testing method as described in any one of the above.

According to the method, the system and the device for testing the safety mechanism of the virtual marshalling train in the parking stage, the target operation test data of the virtual marshalling train in the parking stage in the platform area are obtained from the operation test data of the virtual marshalling train, the traction output data of the front marshalling train and the traction output data of the rear marshalling train in the virtual marshalling train are further extracted from the target operation test data, the platform parking safety mechanism test is carried out by utilizing the traction output data of the front marshalling train and the traction output data of the rear marshalling train, whether the traction data output by each tractor traction system meets the technical standard requirements is judged, and then the parking safety mechanism test result of the virtual marshalling train in the platform area is output in real time according to the judging result, so that the verification test of the safety mechanism of the virtual marshalling train in the parking stage is realized, the technical blank of the urban rail virtual technology in the aspect of the verification of the safety mechanism test of the virtual marshalling train in the parking stage is filled, and the safety and the running efficiency of the urban rail virtual marshalling train is facilitated to be improved.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of a method for testing a safety mechanism of a virtual marshalling train in a parking stage;

fig. 2 is a schematic diagram of a virtual marshalling scene in the method for testing the safety mechanism of the virtual marshalling train in the parking stage;

FIG. 3 is a schematic diagram of a safety mechanism test result diagram in the method for testing the safety mechanism of the virtual marshalling train in the parking stage;

fig. 4 is a schematic structural diagram of a safety mechanism testing device for a parking stage of a virtual marshalling train provided by the invention;

FIG. 5 is a second flow chart of the method for testing the safety mechanism of the virtual marshalling train in the parking stage according to the present invention;

FIG. 6 is a schematic diagram of test results of the virtual consist train stopping stage safety mechanism test method provided by the invention;

Fig. 7 is a schematic structural diagram of a virtual marshalling train parking stage safety mechanism test system provided by the invention;

fig. 8 is a schematic structural diagram of an electronic device provided by the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The method, system and device for testing the safety mechanism of the virtual marshalling train in the parking stage are described below with reference to fig. 1-8.

Fig. 1 is a schematic flow chart of a method for testing a safety mechanism in a parking stage of a virtual marshalling train, which is provided by the invention, as shown in fig. 1, and includes: step 110, step 120 and step 130.

Step 110, obtaining target operation test data of a parking stage of the virtual marshalling train in a platform area from operation test data of the virtual marshalling train;

step 120, obtaining traction output data of a front train and traction output data of a rear train in a virtual marshalling train from target operation test data;

and 130, carrying out a platform parking safety mechanism test based on traction output data of the vehicles before the consist and traction output data of the vehicles after the consist, and outputting a parking safety mechanism test result of the virtual consist train in the platform area.

Specifically, the target operation test data described in the embodiment of the invention refers to operation test data collected when a virtual marshalling train performs a parking stage operation in any platform area of each station, wherein the parking stage refers to a stage from when the virtual marshalling train starts to park to when the virtual marshalling train parks at a designated parking point to stop stably.

The traction output data described in the embodiment of the invention refers to traction analog quantity data output by a traction system when a virtual marshalling train parks.

The platform parking safety mechanism test described in the embodiment of the invention refers to a test performed on the safety mechanism of a virtual marshalling train in a platform area parking stage, and is used for judging whether traction output data of each of a front marshalling train and a rear marshalling train meets relevant technical standards when the virtual marshalling train parks in the platform area, and verifying the correctness of the safety mechanism of the virtual marshalling train in the parking stage.

In the embodiment of the invention, the operation basic data information of the virtual marshalling train, such as the speed of the marshalling front car, the speed of the marshalling rear car, the position information of each car, the acceleration of emergency braking, the traction information, the braking response time and the like, can be acquired in real time through a preset data acquisition module.

Further, in the embodiment of the present invention, in step 110, screening may be performed from the operation test data of the virtual marshalling train, so as to obtain the target operation test data of the virtual marshalling train in the parking stage in the platform area.

Based on the foregoing embodiment, as an alternative embodiment, before acquiring the target operation test data of the parking stage of the virtual consist train in the platform area from the operation test data of the virtual consist train, the method further includes:

Under a preset test scene, a virtual marshalling train is established in the running process of the marshalling front train and the marshalling rear train;

under the condition that the establishment of the virtual marshalling train is successful, acquiring the original operation data of the virtual marshalling train;

Specifically, in the embodiment of the invention, the preset test scene can be started by setting the parking stage control parameters of the virtual marshalling train, such as the running acceleration parameters, the traction parameters, the braking rate parameters and the like of the marshalling front train and the marshalling rear train in the virtual marshalling train in advance, so that the virtual marshalling train is built in the running process of the marshalling front train and the marshalling rear train until the virtual marshalling train is determined to be built successfully.

Fig. 2 is a schematic diagram of a virtual marshalling scene in the method for testing the safety mechanism of the virtual marshalling train parking stage, as shown in fig. 2, a front marshalling train and a rear marshalling train are used as train units to respectively start to run from a station 3 to a station 2, and in the running process of each train, the front marshalling train and the rear marshalling train are used as a whole train to perform marshalling operation and control by establishing a virtual marshalling, so as to form a virtual marshalling train.

In the embodiment of the invention, after the virtual marshalling train is successfully established, the operation basic data information of the virtual marshalling train can be acquired in real time through the preset data acquisition module, the acquired data initially belong to the original operation data of the virtual marshalling train, and further data preprocessing is needed, such as data cleaning, abnormal value processing, missing value processing and the like, on the original operation data of the virtual marshalling train, and clean and accurate acquired data can be finally generated to obtain the operation test data of the virtual marshalling train.

According to the method provided by the embodiment of the invention, the virtual marshalling train is established under the preset test scene, the original operation data of the virtual marshalling train is collected in real time, and the collected original operation data is subjected to data preprocessing, so that the accuracy and usability of the collected data are ensured, an accurate and reliable data source is provided for the subsequent verification test, an accurate and reliable test result is provided, and the parking safety mechanism of the virtual marshalling train in a platform area is accurately verified.

Based on the foregoing embodiment, as an optional embodiment, after establishing the virtual marshalling train during the operation of the pre-marshalling vehicle and the post-marshalling vehicle in the preset test scenario, the method includes:

Under the condition that the virtual marshalling train is determined to fail to be established, adjusting the parking stage control parameters of the virtual marshalling train, and starting a new test scene after adjusting the parking stage control parameters;

under the new test scene, the virtual marshalling train is established in the running process of the marshalling front train and the marshalling rear train until the virtual marshalling train is established successfully.

Specifically, the parking stage control parameters described in the embodiments of the present invention refer to basic operation parameters of each grouped train in the virtual grouped trains in the test scenario in the parking stage, which may specifically include operation acceleration parameters, traction parameters, brake rate parameters, response time, and the like of the pre-grouped and post-grouped trains.

In the embodiment of the invention, after the virtual marshalling trains are established in the running process of the marshalling front train and the marshalling rear train, the parking stage control parameters of each marshalling train can be readjusted under the condition that the virtual marshalling trains are determined to be failed to be established, so that a new test scene is set.

Further, after a new test scenario is started after the parking stage control parameters are adjusted, the front and rear marshalling vehicles start to run in a single-vehicle running mode, and in the running process, virtual marshalling is re-established for the front and rear marshalling vehicles. If the virtual marshalling train is still failed to be established, the control parameters of the parking stage of the marshalling train are continuously adjusted, a new test scene is started, and the virtual marshalling between the front marshalling train and the rear marshalling train is continuously tried to be established until the virtual marshalling train is successfully established, and the front marshalling train and the rear marshalling train form the virtual marshalling train.

According to the method provided by the embodiment of the invention, the parking stage control parameters of each marshalling train in the virtual marshalling trains are continuously adjusted, so that the operation parameters of the test scene are optimized until the virtual marshalling relation between the front marshalling train and the rear marshalling train is successfully established, the virtual marshalling trains are formed, reliable technical support and guarantee are provided for the application of the urban rail virtual marshalling technology in the urban rail traffic system, and the efficiency and the safety of the virtual marshalling trains are improved.

Further, in the embodiment of the present invention, in step 120, the collected data of the train traction system is screened from the target operation test data, and the traction output data of the train before the train is grouped and the traction output data of the train after the train is grouped in the virtual grouping are obtained.

In the embodiment of the invention, the safety mechanism of the parking stage of the virtual marshalling train is tested by utilizing the traction output data of the front marshalling train and the traction output data of the rear marshalling train in the virtual marshalling train, and the embodiment of the invention can effectively verify the parking safety performance of the virtual marshalling train.

Further, in the embodiment of the present invention, in step 130, a platform parking safety mechanism test is performed based on the traction output data of the vehicle before the consist and the traction output data of the vehicle after the consist, specifically, the traction output data of the vehicle before the consist and the traction output data of the vehicle after the consist may be compared with the parking stage safety mechanism technical standard to analyze, determine whether the traction output data of each vehicle meets the technical standard, and output a parking safety mechanism test result of the virtual consist train in the platform area according to the determination result, so as to verify the parking safety performance of the virtual consist train.

According to the method for testing the safety mechanism of the virtual marshalling train in the parking stage, the target operation test data of the virtual marshalling train in the parking stage in the platform area is obtained from the operation test data of the virtual marshalling train, the traction output data of the front marshalling train and the traction output data of the rear marshalling train in the virtual marshalling train are further extracted from the target operation test data, the platform parking safety mechanism test is carried out by utilizing the traction output data of the front marshalling train and the traction output data of the rear marshalling train, whether the traction data output by each train traction system meets the technical standard requirement is judged, and then the parking safety mechanism test result of the virtual marshalling train in the platform area is output in real time according to the judging result, so that the verification test of the safety mechanism of the virtual marshalling train in the parking stage is realized, the correctness of the safety mechanism of the virtual marshalling train in the parking stage can be effectively verified, the technical blank of the urban rail virtual marshalling technology in the aspect of the virtual marshalling parking stage safety mechanism test verification is filled, and the safety and the running efficiency of the urban rail virtual marshalling train is improved.

Based on the foregoing embodiment, as an optional embodiment, step 130, performing a parking safety mechanism test on the basis of the traction output data of the vehicles before the consist and the traction output data of the vehicles after the consist, and outputting a parking safety mechanism test result of the virtual consist train in the platform area, includes:

Outputting a parking safety mechanism test result of the virtual marshalling train in the platform area under the condition that the traction output data of the front marshalling train and the traction output data of the rear marshalling train are zero; otherwise, outputting the parking safety mechanism test result of the virtual marshalling train in the platform area as not passing.

Specifically, in the embodiment of the present invention, the technical standard of the safety mechanism in the parking stage requires that the traction output data of the vehicles before the consist in the virtual consist train is 0, and the traction output data of the vehicles after the consist is also 0.

Further, in the embodiment of the invention, under the condition that the traction output data of the vehicle before the marshalling and the traction output data of the vehicle after the marshalling are both 0, the safety mechanism of the virtual marshalling train in the parking stage of the platform area is proved to meet the technical standard requirement, and the parking safety mechanism test result of the virtual marshalling train in the platform area is output to pass.

Otherwise, in the embodiment of the invention, under the condition that any one of the traction output data of the vehicles before the marshalling and the traction output data of the vehicles after the marshalling is not 0, the traction output data of the vehicles before the marshalling and the traction output data of the vehicles after the marshalling are not 0, and only the traction output data of the vehicles before the marshalling is 0 and only the traction output data of the vehicles after the marshalling are 0, the three conditions are described, that the safety mechanism of the virtual marshalling train in the parking stage in the platform area at the moment does not meet the technical standard requirement, and the parking safety mechanism test result of the virtual marshalling train in the platform area is output.

The method of the embodiment of the invention can effectively realize the verification test of the safety mechanism of the urban rail virtual marshalling train in the parking stage by judging whether the traction output data of the pre-marshalling train and the post-marshalling train in the virtual marshalling train meet the technical standard requirement, can accurately evaluate the safety performance of the virtual marshalling train in the parking stage, effectively combines the actual running condition and the analysis technology, and improves the accuracy and the reliability of the test result.

Based on the foregoing embodiment, as an optional embodiment, after acquiring the traction output data of the pre-consist vehicle and the traction output data of the post-consist vehicle in the virtual consist train, the method further includes:

acquiring running data of a vehicle before marshalling and running data of a vehicle after marshalling from running test data of the virtual marshalling train; the driving data includes a driving speed and a driving time;

generating a safety mechanism test result graph of a parking stage of the virtual marshalling train based on the driving data and traction output data of the marshalling front train and the driving data and traction output data of the marshalling rear train;

based on the traction output data of the vehicles before the marshalling and the traction output data of the vehicles after the marshalling, the parking safety mechanism test result of the virtual marshalling train in the platform area is output, and a safety mechanism test result graph is output.

Specifically, in the embodiment of the invention, the running data of the front and rear vehicles of the virtual marshalling train in the whole running process of the virtual marshalling train can be further screened from the running test data of the virtual marshalling train, and the running data comprise the running speed and the running time of each vehicle.

In the embodiment of the invention, the running data and traction output data of the vehicles before the marshalling and the running data and traction output data of the vehicles after the marshalling are respectively subjected to drawing calculation processing to generate a safety mechanism test result diagram of the vehicles before the marshalling and a safety mechanism test result diagram of the vehicles after the marshalling in the parking stage, so that the safety mechanism test result diagram of the virtual marshalling train in the parking stage is obtained.

In the embodiment of the invention, the driving data and the traction output data of the vehicles before the marshalling are judged, the parking safety mechanism test result of the virtual marshalling train in the platform area is output, and meanwhile, the safety mechanism test result diagram is also output, so that further analysis and evaluation by testers are facilitated.

Fig. 3 is a schematic diagram of a safety mechanism test result diagram in the method for testing a safety mechanism of a virtual marshalling train parking stage, as shown in fig. 3, fig. 3 (a) is a safety mechanism test result diagram of a pre-marshalling train parking stage in the virtual marshalling train, and fig. 3 (b) is a safety mechanism test result diagram of a post-marshalling train parking stage in the virtual marshalling train. In each safety mechanism test result graph, the abscissa represents time in seconds(s), the ordinate represents speed in centimeters per second (cm/s), and speed change information of the whole testing process of the vehicle before or after the vehicle is shown in the graph, wherein the bottom solid line represents traction output data intercepted in a parking stage as 0. As can be seen from fig. 3 (a) and (b), the test time is from 0 to 20000s, the traction output data of the train before the train is grouped and the traction output data of the train after the train is grouped are both output to 0 in each parking stage, the technical standard requirements of the platform parking safety mechanism are met, and the test results are all passed.

According to the method provided by the embodiment of the invention, the drawing calculation is carried out by collecting the running data and the traction output data of the virtual marshalling train, so that the safety mechanism test result diagram is generated, the correctness of the safety mechanism of the virtual marshalling train in the parking stage can be accurately, quickly and intuitively verified, and the convenience and the efficiency of the safety mechanism test of the virtual marshalling train in the parking stage can be improved.

Based on the foregoing embodiment, as an alternative embodiment, after outputting that the parking safety mechanism test result of the virtual consist train in the platform area is failed, the method further includes:

adjusting the parking stage control parameters of the virtual marshalling train, and starting a new test scene after adjusting the parking stage control parameters;

acquiring new operation test data of a virtual marshalling train in a platform area under a new test scene;

and carrying out a platform parking safety mechanism test based on the new operation data until the result of the platform parking safety mechanism test of the output virtual marshalling train in the platform area is determined to pass.

Specifically, in the embodiment of the present invention, after it is determined that the parking safety mechanism test result of the output virtual marshalling train in the platform area is failed, the parking stage control parameters of each marshalling train may be readjusted, and as understood from the foregoing description, the parking precision control parameters may include the running acceleration parameters, the traction parameters, the brake rate parameters, the response time, and the like of the pre-marshalling and post-marshalling vehicles, so that a new test scenario is set and started according to the adjusted parking stage control parameters.

Further, in the embodiment of the invention, in a new test scene after the control parameter of the parking stage is started and adjusted, new operation test data of the virtual marshalling train in the platform area in the new test scene is acquired again, and based on the new operation test data, the platform parking safety mechanism test can be performed according to the data processing flow described in the test scene. And if the parking safety mechanism test result of the output virtual marshalling train in the platform area is determined to be not passed, continuously adjusting the control parameters of the parking stage, restarting a new test scene, and continuously carrying out the platform parking safety mechanism test of the virtual marshalling train according to the acquired new running test data of the virtual marshalling train in the platform area until the parking safety mechanism test result of the output virtual marshalling train in the platform area is determined to be passed.

According to the method provided by the embodiment of the invention, the control parameters of the parking stage of the marshalling train are continuously adjusted, the operation parameters of the test scene are optimized until the test result of the parking safety mechanism of the virtual marshalling train in the platform area is determined to pass, reliable technical support and guarantee are provided for the application of the urban rail virtual marshalling technology in the urban rail traffic system, and the efficiency and safety of the virtual marshalling train operation are improved.

Fig. 4 is a schematic structural diagram of a safety mechanism testing device for a parking stage of a virtual marshalling train, which is provided by the invention, as shown in fig. 4, and 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 sequentially connected;

the data acquisition module 410 is used for acquiring original operation data of the virtual marshalling train;

the data analysis module 420 is configured to receive the original operation data sent by the data acquisition module 410, and perform data preprocessing on the original operation data to obtain operation test data of the virtual marshalling train; acquiring target operation test data of a parking stage of the virtual marshalling train in a platform area from the operation test data of the virtual marshalling train, and acquiring traction output data of a front marshalling train and traction output data of a rear marshalling train in the virtual marshalling train from the target operation test data;

the data calculation module 430 is configured to receive the traction output data of the pre-marshalling vehicle and the traction output data of the post-marshalling vehicle sent by the data analysis module 420, and generate a safety mechanism test result diagram of the parking stage of the virtual marshalling train based on the traction output data of the pre-marshalling vehicle and the traction output data of the post-marshalling vehicle;

The test result output module 440 is configured to receive the traction output data of the pre-marshalling vehicle, the traction output data of the post-marshalling vehicle, and the safety mechanism test result graph, which are sent by the data calculation module 430, and output a parking safety mechanism test result of the virtual marshalling train in the platform area according to the traction output data of the pre-marshalling vehicle and the traction output data of the post-marshalling vehicle, and output the safety mechanism test result graph.

Specifically, in the embodiment of the invention, after a test scene is designed and normal operation of a virtual marshalling train is started, the data acquisition module is used for acquiring original operation data of the virtual marshalling train, is particularly responsible for acquiring the operation data of the virtual marshalling train, acquires operation basic data information of the train before and after marshalling in the virtual marshalling train, such as original operation data of train speed, position information, train traction output information and the like, and sends the acquired original operation data to the data analysis module.

In the embodiment of the invention, the data analysis module receives the original operation data sent by the data acquisition module, performs data preprocessing on the original operation data, such as performing abnormal value, missing value and the like on the original operation data through data cleaning, so as to obtain the accurate and usable operation test data of the virtual marshalling train, and further, performs feature extraction, data classification and data screening on the operation test data after the data preprocessing, and screens the operation test data of the virtual marshalling train in a platform area from the operation test data of the virtual marshalling train.

And then, the data analysis module continues to screen out target operation test data of a parking stage from the operation test data of the platform areas, further screens out traction output data of a front vehicle and traction output data of a rear vehicle in the virtual marshalling train from the target operation test data, and sends the traction output data to the data calculation module.

Optionally, in this embodiment, the data analysis module screens running data of the virtual marshalling train from running test data of the virtual marshalling train, including a running speed and a running time of a vehicle before marshalling and a running speed and a running time of a vehicle after marshalling, and sends the running data to the data calculation module.

In the embodiment of the invention, the data calculation module receives the traction output data and the driving data of the front vehicle and the traction output data and the driving data of the rear vehicle, which are sent by the data analysis module, extracts the data based on the data and calculates the test results of the front vehicle and the rear vehicle. Specifically, the data calculation module generates a safety mechanism test result graph of a parking stage of the pre-marshalling vehicle based on traction output data of the pre-marshalling vehicle and driving data of the pre-marshalling vehicle, generates a safety mechanism test result graph of the parking stage of the post-marshalling vehicle based on traction output data of the post-marshalling vehicle and driving data of the post-marshalling vehicle, and accordingly obtains the safety mechanism test result graph of the parking stage of the virtual marshalling train, and outputs the safety mechanism test result graph through the test result output module.

Meanwhile, the data calculation module also sends traction output data of the vehicles before the marshalling and traction output data of the vehicles after the marshalling to the test result output module.

In the embodiment of the invention, the test result output module is used for outputting a test result, outputting a test result diagram and printing a test result table. The technical standard data of the safety mechanism of the virtual marshalling train in the parking stage is pre-stored in the module, the received traction output data and the pre-stored technical standard data are compared and analyzed, when the traction output data of the front marshalling train and the traction output data of the rear marshalling train are both 0, the parking safety mechanism test result of the virtual marshalling train in the platform area is output to pass, and the output result is printed; otherwise, outputting the parking safety mechanism test result of the virtual marshalling train in the platform area as not passing, and printing the output result. Meanwhile, a safety mechanism test result diagram sent by the data calculation module is output, so that a tester can check and further analyze the safety mechanism test result diagram conveniently.

According to the device provided by the embodiment of the invention, through a modularized design, the actual operation test data of the virtual marshalling train in the parking stage of the platform area is collected, the key indexes are processed, analyzed and calculated, the key indexes are compared with the preset technical standard, the correctness of the safety mechanism of the virtual marshalling train in the parking stage is judged, the parking safety performance of the virtual marshalling train in the platform area can be accurately verified, the safety performance of the virtual marshalling train can be comprehensively evaluated, and an important technical guarantee is provided for the safety operation of the urban rail virtual marshalling train.

Fig. 5 is a second flow chart of the method for testing a safety mechanism in a parking stage of a virtual marshalling train according to the present invention, as shown in fig. 5, in the embodiment of the present invention, the testing flow may be specifically implemented as follows:

step 51, test scene design and description. The virtual marshalling is established by the designed train, the virtual marshalling train marshalling mode operation is carried out according to the fixed operation road crossing mode, and when the virtual marshalling train marshalling operation enters a station to stop and is stable, operation test data of a front car and a rear car which are marshalled are collected.

Step 52, a test device is set. The testing device comprises the data acquisition module, the data analysis module, the data calculation module and the testing result output module.

Step 53, the test device is accessed. The test device is connected to the record board of the virtual marshalling train vehicle-mounted equipment, and the test device can normally receive actual operation data sent by the vehicle-mounted equipment.

Step 54, executing the test scene and collecting the test data. In this step, according to the test scenario designed in step 51, the train is started to run, and after the virtual consist is successfully established, the train is made to run in the virtual consist mode, and in the process of stopping at the virtual consist train consist running platform, the data acquisition module of the test device acquires the running test data of the virtual consist train in real time.

Step 55, test data calculation. The method comprises the steps of carrying out feature extraction, classification and screening on collected data through a data analysis module of a testing device, judging whether the data collected currently are data of a platform area or not in the data analysis process, returning to continue data collection if an analysis result is not the data of the platform area, judging whether a front car and a rear car of a group train are in a parking stage if the data conditions of the platform area are met, carrying out data classification on operation test data collected in the parking stage if the data conditions are met, extracting traction output data of the front car and the rear car of a virtual group train, screening out traction output data of the front car and the traction output data of the rear car of the group, and outputting the traction output data to a data calculation module; otherwise, continuing the data preprocessing step of the original running data of the virtual marshalling train.

At step 56, test data is calculated. And carrying out calculation of analog quantity data of traction output of the front vehicle and calculation of analog quantity data of traction output of the rear vehicle according to traction output data of the front vehicle and traction output data of the rear vehicle by a data calculation module of the test device, namely calculating a safety mechanism test result diagram of a parking stage of the front vehicle and a safety mechanism test result diagram of a parking stage of the rear vehicle.

And step 57, outputting a test result. And through a test result output module of the test device, carrying out parking stage safety mechanism verification according to the traction output data of the front vehicle and the traction output data of the rear vehicle, which are sent by the data calculation module, if the safety mechanism verification meets the following conditions: when the traction output value of the vehicle before the marshalling=0 and the traction output value of the vehicle after the marshalling=0, the test result is output as passing; otherwise, the test result is output as not passing.

The test result output module prints a table of the test result while outputting the test result, displays specific numerical values related to the test result in the table, and outputs a test result diagram, wherein the test result diagram comprises a safety mechanism test result diagram in a parking stage before marshalling and a safety mechanism test result diagram in a parking stage after marshalling, so that a tester can conveniently and intuitively check the test result.

Fig. 6 is a schematic diagram of test results of the method for testing a safety mechanism in a parking stage of a virtual marshalling train, as shown in fig. 6, in a test result information list, the test result information list includes a parking platform, a platform type, a marshalling type, a train number, a traction output analog value (i.e. traction output data) and test results of the tested train, and it can be seen that in the test results of each platform, the traction output data of a train before marshalling and the traction output data of a train after marshalling are both 0, and the test results are all passed.

Step 58, test analysis and evaluation. The test result can be output in a visual form for each test of the test method and the test device, so that the test personnel can further analyze and evaluate the test result conveniently. The tester can evaluate and improve the result according to the comparison between the output result and the expected index effect. If the test result is not passed, the tester can analyze according to the specific value output by the test result, modify the control parameter of the parking stage in the cooperative control algorithm of the marshalling train entering and parking, reset the test scene and test and verify the safety mechanism of the virtual marshalling train parking stage.

According to the method provided by the embodiment of the invention, the accurate verification of the safety mechanism of the virtual marshalling train in the parking stage is realized by collecting the actual operation data of the virtual marshalling train, applying the analysis technology and calculating the related indexes, and the technical blank of the conventional urban rail virtual marshalling technology in the aspect of the test and verification of the safety mechanism of the virtual marshalling train in the parking stage is filled. Meanwhile, the test result is output in a graph visualization mode, so that the test result is more visual and easy to understand, the test result is convenient for a tester to quickly judge and analyze, and the tester is facilitated to find risk points and problems of the system in time; by continuously adjusting and optimizing control parameters of the test scene, an optimization scheme is provided for the operation efficiency of the system, the safety risk and potential faults are reduced, the reliability and the operation efficiency of the system are improved, and important technical support is provided for the research and the application of the urban rail virtual marshalling system.

The system for testing the safety mechanism of the virtual marshalling train parking stage provided by the invention is described below, and the system for testing the safety mechanism of the virtual marshalling train parking stage described below and the method for testing the safety mechanism of the virtual marshalling train parking stage described above can be correspondingly referred to each other.

Fig. 7 is a schematic structural diagram of a system for testing a safety mechanism in a parking stage of a virtual marshalling train, which is provided by the invention, as shown in fig. 7, and includes:

a first obtaining unit 710, configured to obtain target operation test data of a parking stage of the virtual marshalling train in the platform area from operation test data of the virtual marshalling train;

a second obtaining unit 720, configured to obtain, from the target operation test data, traction output data of a vehicle before the consist and traction output data of a vehicle after the consist in the virtual consist train;

the first output unit 730 is configured to perform a parking safety mechanism test on the basis of traction output data of the vehicles before the consist and traction output data of the vehicles after the consist, and output a parking safety mechanism test result of the virtual consist train in the platform area.

The virtual marshalling train parking stage safety mechanism testing system of the embodiment can be used for executing the virtual marshalling train parking stage safety mechanism testing method embodiment, and the principle and the technical effect are similar, and are not repeated here.

According to the virtual marshalling train parking stage safety mechanism testing system provided by the invention, the target operation testing data of the virtual marshalling train in the parking stage in the platform region is obtained from the operation testing data of the virtual marshalling train, the traction output data of the front marshalling train and the traction output data of the rear marshalling train in the virtual marshalling train are further extracted from the target operation testing data, the platform parking safety mechanism testing is carried out by utilizing the traction output data of the front marshalling train and the traction output data of the rear marshalling train, whether the traction data output by each train traction system meets the technical standard requirements is judged, and the parking safety mechanism testing result of the virtual marshalling train in the platform region is further output in real time according to the judging result, so that the verification test of the safety mechanism of the virtual marshalling train in the parking stage is realized, the correctness of the virtual marshalling train in the parking stage can be effectively verified, the technical blank of the urban rail virtual marshalling technology in the aspect of the virtual marshalling train parking stage safety mechanism test verification is filled, and the urban rail virtual marshalling operation safety and the safety mechanism test efficiency is improved.

Fig. 8 is a schematic diagram of an entity structure of an electronic device according to the present invention, as shown in fig. 8, the electronic device may include: processor 810, communication interface (Communications Interface) 820, memory 830, and communication bus 840, wherein processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. The processor 810 may invoke logic instructions in the memory 830 to perform the virtual consist train stopping phase safety mechanism testing method provided by the methods described above, the method comprising: acquiring target operation test data of a parking stage of the virtual marshalling train in a platform area from operation test data of the virtual marshalling train; acquiring traction output data of a front vehicle and traction output data of a rear vehicle in the virtual marshalling train from the target operation test data; and carrying out a platform parking safety mechanism test based on the traction output data of the vehicles before the consist and the traction output data of the vehicles after the consist, and outputting a parking safety mechanism test result of the virtual consist train in the platform area.

Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, and when the computer program is executed by a processor, the computer can execute the method for testing the safety mechanism of the parking phase of the virtual marshalling train provided by the above methods, and the method includes: acquiring target operation test data of a parking stage of the virtual marshalling train in a platform area from operation test data of the virtual marshalling train; acquiring traction output data of a front vehicle and traction output data of a rear vehicle in the virtual marshalling train from the target operation test data; and carrying out a platform parking safety mechanism test based on the traction output data of the vehicles before the consist and the traction output data of the vehicles after the consist, and outputting a parking safety mechanism test result of the virtual consist train in the platform area.

In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the method for testing a safety mechanism of a parking phase of a virtual consist train provided by the above methods, the method comprising: acquiring target operation test data of a parking stage of the virtual marshalling train in a platform area from operation test data of the virtual marshalling train; acquiring traction output data of a front vehicle and traction output data of a rear vehicle in the virtual marshalling train from the target operation test data; and carrying out a platform parking safety mechanism test based on the traction output data of the vehicles before the consist and the traction output data of the vehicles after the consist, and outputting a parking safety mechanism test result of the virtual consist train in the platform area.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The method for testing the safety mechanism of the virtual marshalling train in the parking stage is characterized by comprising the following steps of:

2. The method for testing the safety mechanism of the parking stage of the virtual marshalling train according to claim 1, wherein the step of performing the platform parking safety mechanism test based on the traction output data of the pre-marshalling train and the traction output data of the post-marshalling train and outputting the parking safety mechanism test result of the virtual marshalling train in the platform area comprises the following steps:

3. The virtual consist train stopping phase safety mechanism testing method according to claim 1, wherein after the acquiring of the traction output data of the pre-consist train and the traction output data of the post-consist train in the virtual consist train, the method further comprises:

4. The method for testing a parking phase safety mechanism of a virtual consist train according to claim 2, wherein after the outputting of the parking safety mechanism test result of the virtual consist train in the platform area is not passed, the method further comprises:

5. The method for testing the safety mechanism of the parking stage of the virtual marshalling train according to any one of claims 1 to 4, wherein before the target operation test data of the parking stage of the virtual marshalling train in the platform area is obtained from the operation test data of the virtual marshalling train, the method further comprises:

6. The method for testing a safety mechanism in a parking phase of a virtual marshalling train according to claim 5, wherein after the virtual marshalling train is established during operation of a pre-marshalling train and a post-marshalling train in a preset test scenario, the method comprises:

7. A virtual consist train stopping phase safety mechanism testing system, comprising:

8. The utility model provides a virtual marshalling train parking stage safety mechanism testing arrangement which characterized in that includes: the device comprises 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 sequentially connected;

9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the virtual consist train stopping phase safety mechanism testing method of any one of claims 1 to 6 when the program is executed.

10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the virtual consist train stopping phase safety mechanism testing method of any one of claims 1 to 6.