CN117208053A - Running interval test method, device, equipment and medium under virtual grouping - Google Patents
Running interval test method, device, equipment and medium under virtual grouping Download PDFInfo
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Abstract
The invention provides a method, a device, equipment and a medium for testing running distance under virtual marshalling, which relate to the technical field of rail transit and comprise the following steps: screening target position information of each running moment from test running data of the virtual marshalling train, wherein the target position information comprises front car position information and rear car position information; for any running time, determining a section running interval corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance; and outputting a test result of the interval running interval according to the interval running interval and a second preset distance for any interval running interval. The invention is based on the comprehensive verification means of the running interval in the running process of the virtual marshalling train marshalling, fills the technical blank of the field in the aspect of running interval test, solves the problems of large test error and safety risk in the test of the traditional test method, and improves the accuracy and safety of the test.
Description
Technical Field
The present invention relates to the field of rail traffic technologies, and in particular, to a method, an apparatus, a device, and a medium for testing an operation space under a virtual group.
Background
The invention patent application with the application publication number of CN114524005A discloses a method, a device, a system, a vehicle and a storage medium for vehicle marshalling, wherein after receiving a train marshalling control instruction sent by train control equipment, the method determines a second vehicle to be marshalled according to the train marshalling control instruction, detects a first vehicle distance with the second vehicle and receives a second vehicle distance sent by the second vehicle; when the difference value between the first vehicle distance and the second vehicle distance is smaller than or equal to a first distance threshold value, the first vehicle and the second vehicle are used as vehicles in the target train grouping, and the first vehicle and the second vehicle are controlled to be grouped, so that virtual grouping of the vehicles is realized; the invention patent application with the application publication number of CN115167391A discloses a virtual marshalling train formation control method based on sliding mode control, based on Lyapunov stability theory and sliding mode control theory, uncertainty of considering train parameters and external disturbance is researched, and a robust self-adaptive formation control law based on sliding film control is provided to cooperate with operation of each unit train in a train group in virtual marshalling operation, and operation intervals among all unit trains in the virtual marshalling are converged to expected operation intervals.
However, in the test of the running distance of the virtual marshalling trains, a tester is required to hold the test equipment to measure the passing virtual marshalling trains in real time, so that the defect of large error exists, and potential safety hazards exist when the tester measures.
Disclosure of Invention
The invention provides a method, a device, equipment and a medium for testing running intervals under virtual grouping, which are used for solving the technical defects that the running interval test error is larger and potential safety hazards exist in the prior art.
In a first aspect, the present invention provides a method for testing running distance under virtual grouping, including:
screening target position information of each running moment from test running data of the virtual marshalling train, wherein the target position information comprises front car position information and rear car position information;
for any running time, determining a section running interval corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance;
for any interval running interval, outputting a test result of the interval running interval according to the interval running interval and a second preset distance;
the target position difference value is determined according to the front vehicle position information and the rear vehicle position information.
According to the method for testing the running distance under the virtual marshalling provided by the invention, the method for screening the target position information of each running moment from the test running data of the virtual marshalling train comprises the following steps:
determining the running speed of the vehicle before the marshalling and the running speed of the vehicle after the marshalling corresponding to each running moment in all running moments from the test running data of the virtual marshalling train;
and for any running time, acquiring target position information corresponding to the running time when the running speed of the vehicle before the marshalling is greater than or equal to a first preset speed and the running speed of the vehicle after the marshalling is greater than or equal to a second preset speed.
According to the method for testing the running distance under the virtual grouping provided by the invention, the interval running distance corresponding to each running moment is determined according to the magnitude relation between the target position difference value and the first preset distance, and the method comprises the following steps:
for any running time, determining that the target position difference value is the interval running distance under the condition that the target position difference value is greater than or equal to the first preset distance;
and under the condition that the target position difference value is smaller than the first preset distance, determining laser radar data measured at the corresponding operation time of the target position difference value from test operation data of the virtual marshalling train, and determining the laser radar data as the interval operation distance.
According to the method for testing the running interval under the virtual grouping provided by the invention, the test result of the running interval of the interval is output according to the running interval of the interval and the second preset distance, and the method comprises the following steps:
outputting a test result of the interval running interval to pass under the condition that the interval running interval is smaller than the second preset distance for any interval running interval;
outputting a test result of the interval running interval to be failed under the condition that the interval running interval is larger than or equal to the second preset distance.
According to the method for testing the running interval under the virtual grouping provided by the invention, after the test result of the interval running interval is output, the method further comprises the following steps:
traversing all interval operation intervals until test results of all interval operation intervals are obtained;
outputting the test result of the running interval under the virtual grouping as passing under the condition that the test result of the running interval of all intervals is passing;
otherwise, outputting the test result of the running interval under the virtual grouping as failed.
According to the method for testing the running interval under the virtual grouping provided by the invention, after the test result of the running interval under the virtual grouping is output as failed, the method further comprises the following steps:
Adjusting virtual operation control parameters of the virtual marshalling train;
obtaining the test operation data of the virtual marshalling train again until the test result of the operation space under the virtual marshalling is output to pass;
the virtual running control parameters of the virtual marshalling train at least comprise acceleration of the marshalling front car and the marshalling rear car under the virtual marshalling.
According to the method for testing the running distance under the virtual marshalling, before the target position information of each running moment is screened out from the test running data of the virtual marshalling train, the method further comprises the following steps:
in a preset test scene, constructing a virtual marshalling train in the running process of a marshalling front car and a marshalling rear car;
acquiring train initial data of the virtual marshalling train;
cleaning the initial train data, and screening out first operation data;
performing time sequence adjustment on the first operation data to obtain second operation data;
and performing time stamp alignment operation on the second operation data to generate test operation data of the virtual marshalling train.
In a second aspect, there is provided an under-virtual consist running interval test apparatus, comprising:
screening unit: the method comprises the steps of screening target position information of each running moment from test running data of a virtual marshalling train, wherein the target position information comprises front car position information and rear car position information;
The determining unit is used for determining the interval operation distance corresponding to each operation moment according to the magnitude relation between the target position difference value and the first preset distance for any operation moment;
the output unit is used for outputting a test result of the interval running interval according to the interval running interval and a second preset distance for any interval running interval;
the target position difference value is determined according to the front vehicle position information and the rear vehicle position information.
In a third aspect, the present invention further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements the virtual consist running interval test method when executing the program.
In a fourth 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, implements a virtual consist run distance test method as described in any of the above.
The invention provides a method, a device, equipment and a medium for testing running intervals under virtual marshalling, which are used for screening front car position information and rear car position information of each running time from test running data of a virtual marshalling train to determine a target position difference value, determining interval running intervals corresponding to each running time according to the magnitude relation between the target position difference value and a first preset distance, and outputting test results of the interval running intervals according to the interval running intervals and a second preset distance.
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 running distance under virtual group according to the present invention;
FIG. 2 is a schematic diagram of a process for screening out target location information according to the present invention;
FIG. 3 is a schematic flow chart of determining interval running intervals provided by the invention;
FIG. 4 is a flow chart of the output test result provided by the invention;
FIG. 5 is a schematic view of a scenario of a consist run phase provided by the present invention;
FIG. 6 is a second flow chart of the method for testing the running distance under virtual group according to the present invention;
FIG. 7 is a third flow chart of the method for testing the running distance under virtual consist according to the present invention;
FIG. 8 is a schematic diagram of a virtual consist running distance test apparatus according to the present invention;
fig. 9 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.
The virtual marshalling technology for urban rail train is one flexible marshalling technology for urban rail traffic system, and aims at realizing the marshalling operation of several trains in the same interval via intelligent algorithm and cooperative control to raise the transportation capacity and efficiency of the line. The technology regards a plurality of trains as a marshalling unit in a virtual marshalling mode, reduces the interval between the trains, and achieves the purpose of improving the line throughput.
However, at present, there is no systematic method and apparatus for describing and verifying the interval running distance in the running process of the virtual marshalling train, and there is no comprehensive verification means for the running distance in the running process of the virtual marshalling train, and the conventional test method has a great limitation, which requires a tester to measure beside the train, so that the error is large, and a certain potential safety hazard exists. In view of the above technical problems, the present invention provides a method, an apparatus, a device, and a medium for testing a virtual under-consist running distance, and fig. 1 is one of flow diagrams of the method for testing a virtual under-consist running distance provided by the present invention, where the method for testing a virtual under-consist running distance includes:
Step 101, screening out target position information of each running time from test running data of the virtual marshalling train, wherein the target position information comprises front car position information and rear car position information.
In step 101, in a preset test scenario in test operation data of the virtual marshalling train, the test operation data obtained in an actual operation process of the virtual marshalling train corresponding to a preset virtual operation control parameter, because the invention aims to test the operation space of the train in the operation process, in order to make the test result more accurate, the virtual marshalling train needs to be ensured to be in a high-speed operation state, so that the operation data of the virtual marshalling train, in which the operation speed of the train meets the preset condition, is screened out from the test operation data of the virtual marshalling train, and the operation data comprises target position information of each operation time, wherein the target position information comprises front car position information and rear car position information.
Step 102, for any running time, determining a section running interval corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance.
In step 102, the target position difference is determined according to the absolute value of the difference between the front vehicle position information and the rear vehicle position information, where the target position difference is the interval measured between the front vehicle and the rear vehicle, and in order to make the test result more accurate, a determination mode of different interval running intervals is selected according to the magnitude relation between the target position difference and the first preset distance, for example, the first preset distance is 100 meters, if the target position difference is greater than or equal to 100 meters, the interval running interval corresponding to each running time is determined by adopting a method of calculating the position difference, and if the target position difference is less than 100 meters, the interval running interval corresponding to each running time is determined by adopting a laser radar measurement value.
Step 103, outputting a test result of the interval running interval according to the interval running interval and a second preset distance for any interval running interval.
In step 103, different operation moments correspond to different interval operation intervals, and for each interval operation interval corresponding to each operation moment, the magnitude relation between the interval operation interval and a second preset distance can be compared, and a test result of the interval operation interval is output, for example, if the interval operation interval is measured to be 90 meters and the second preset distance is measured to be 200 meters, the test result of the interval operation interval is output to be passed.
Because of the dynamic property of the marshalling trains in the running process, the running interval data of the marshalling trains needs to be measured and output in real time so as to adjust and optimize the marshalling running parameters in time.
Optionally, before screening the target position information of each operation time from the test operation data of the virtual marshalling train, the method further comprises:
in a preset test scene, constructing a virtual marshalling train in the running process of a marshalling front car and a marshalling rear car;
acquiring train initial data of the virtual marshalling train;
cleaning the initial train data, and screening out first operation data;
performing time sequence adjustment on the first operation data to obtain second operation data;
and performing time stamp alignment operation on the second operation data to generate test operation data of the virtual marshalling train.
Optionally, the method and the device for testing the train initial data of the virtual marshalling train in the test scene collect train initial data of the virtual marshalling train in real time, preprocess the train initial data, wherein the preprocessing comprises data cleaning, time sequence adjustment and time stamp alignment, the preprocessing operation is performed to ensure the accuracy and the usability of the data, and finally, the operations such as feature extraction, analysis and the like are performed according to the preprocessed test operation data, and a test result is output.
The method can solve the problem of lack of a train operation distance testing method and tools in the current urban rail virtual marshalling technology, and the key value is analyzed and the operation distance index is calculated through designing the testing step and collecting the actual operation data of the virtual marshalling train, so that the operation distance in the marshalling operation process of the virtual marshalling train is effectively verified.
The invention not only provides a comprehensive verification means for the running distance in the virtual marshalling train marshalling running process, fills up the technical blank in the aspect of running distance test in the prior art, but also solves the problems of large error and safety risk existing in the conventional distance test method in the actual running process of the train, improves the accuracy and safety of the test, simultaneously realizes the real-time measurement and result output of the marshalling train running distance, provides effective data support for timely adjusting and optimizing marshalling running parameters, provides reliable technical support and guarantee for the application of the urban rail virtual marshalling technology in an urban rail transportation system, and is beneficial to improving the efficiency and safety of marshalling running.
The invention provides a method, a device, equipment and a medium for testing running intervals under virtual marshalling, which are used for screening front car position information and rear car position information of each running time from test running data of a virtual marshalling train to determine a target position difference value, determining interval running intervals corresponding to each running time according to the magnitude relation between the target position difference value and a first preset distance, and outputting test results of the interval running intervals according to the interval running intervals and a second preset distance.
Fig. 2 is a schematic flow chart of screening target position information provided by the present invention, where the screening of target position information of each operation time from test operation data of a virtual marshalling train includes:
step 201, determining the running speed of the train before the train is grouped and the running speed of the train after the train is grouped, which correspond to each running time in all running times, from the test running data of the virtual train.
In step 201, the present invention completes the test operation of the virtual marshalling train under the preset test scene, and obtains the test operation data of all stages, and the virtual marshalling train corresponds to different operation speeds at different operation moments from starting, operating to entering, so the operation speed of the pre-marshalling train and the operation speed of the post-marshalling train corresponding to each operation moment are obtained according to the sensor arranged on the virtual marshalling train.
Optionally, fig. 5 is a schematic view of a scenario of a grouping operation stage provided by the present invention, where after the grouping is completed, the grouping train performs virtual grouping train grouping mode operation according to a fixed operation intersection mode, and in the operation process, test operation data of all stages of a pre-grouping train and a post-grouping train in an interval operation process are collected.
Step 202, for any running time, acquiring target position information corresponding to the running time when the running speed of the vehicle before the marshalling is greater than or equal to a first preset speed and the running speed of the vehicle after the marshalling is greater than or equal to a second preset speed.
In step 202, in order to test the running distance under the virtual grouping, the running speed of the vehicle before the grouping and the running speed of the vehicle after the grouping are required to be ensured to be greater than a certain speed, the first preset speed may be the same as or different from the second preset speed, and optionally, the first preset speed and the second preset speed are 80km/h, i.e. for any running time, under the condition that the running speed of the vehicle before the grouping is greater than or equal to 80km/h and the running speed of the vehicle after the grouping is greater than or equal to 80km/h, the front vehicle position information and the rear vehicle position information of the corresponding running time are obtained.
For example, all the operation moments comprise 30 minutes, the operation speed of the vehicle after the grouping is less than 80km/h from the first time interval from the beginning to the 10 th time interval, the operation speed of the vehicle before the grouping and the operation speed of the vehicle after the grouping are less than 80km/h from the second time interval from the 25 th time interval to the end, the operation speed of the vehicle before the grouping is greater than or equal to 80km/h only in the third time interval from the 10 th time interval to the 25 th time interval, and the operation speed of the vehicle after the grouping is greater than or equal to 80km/h, and the target position information corresponding to the third time interval is acquired.
The invention can efficiently screen out the effective data of the running interval test under the virtual grouping, thereby improving the accuracy and reliability of the test, reducing the calculation complexity and improving the test efficiency.
Fig. 3 is a schematic flow chart of determining interval running intervals provided by the present invention, where determining the interval running interval corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance includes:
step 301, for any running time, determining that the target position difference value is the interval running distance when the target position difference value is greater than or equal to the first preset distance.
In step 301, the first preset distance is 100 meters, for any running time, under the condition that the running speeds of the vehicles before and after the consist are greater than or equal to the second preset speed, all the target position information corresponding to all the running times is obtained, and further, for any running time, each target position difference value is compared with the first preset distance, if the target position difference value is greater than or equal to 100 meters, the interval running distance is determined to be calculated in a position difference mode, that is, the target position difference value is determined to be the interval running distance, for example, if the target position difference value is 125 meters, the interval running distance is 125 meters.
And step 302, determining laser radar data measured at the corresponding running time of the target position difference value from the test running data of the virtual marshalling train under the condition that the target position difference value is smaller than the first preset distance, and determining the laser radar data as the interval running distance.
In step 302, if the target position difference is smaller than 100 meters, it is determined that the interval running distance is calculated by using the laser radar ranging method, that is, from the test running data of the virtual marshalling train, the laser radar data measured at the running time corresponding to the target position difference is determined, and the laser radar data is determined as the interval running distance, for example, if the target position difference is 88 meters and the laser radar data measured at the running time corresponding to the target position difference is 87 meters, the interval running distance is 87 meters.
In the embodiment of the invention, since the position accuracy measured by the laser radar ranging technology is larger than the position accuracy measured by the position difference within 100 meters, the laser radar data measured by the laser radar ranging technology is regarded as the interval running distance within 100 meters; the position accuracy measured by the position difference is greater than the position accuracy measured by a laser radar ranging technology outside 100 meters, so that the target position difference measured by the position difference is regarded as the interval running interval outside 100 meters.
Fig. 4 is a schematic flow chart of outputting a test result provided by the present invention, where the outputting the test result of the interval running distance according to the interval running distance and the second preset distance includes:
step 401, outputting a test result of the interval running interval to pass when the interval running interval is smaller than the second preset distance for any interval running interval.
In step 401, the second preset distance may be 200 meters, if the interval running distance is 46 meters, the test result of the interval running distance is output as passing, and if the interval running distance is 129 meters, the test result of the interval running distance is output as passing, and the value setting of the second preset distance may be adjusted according to different test targets, test objects or test standards.
Step 402, outputting a test result of the interval running distance as failed when the interval running distance is greater than or equal to the second preset distance.
In step 402, if the interval running interval is 200 meters, the test result of the interval running interval is output as failed, and if the interval running interval is 300 meters, the test result of the interval running interval is output as failed.
The method solves the problems of large error and safety risk of the traditional measuring method, does not need a tester to get off for measurement, reduces the complexity of operation, reduces the interference of external environment, realizes accurate measurement of the running distance through real-time data acquisition and analysis of the virtual marshalling train, avoids the limitation and risk of the traditional method, and improves the accuracy and safety of the test.
Optionally, after the outputting the test result of the interval running interval, the method further includes:
traversing all interval operation intervals until test results of all interval operation intervals are obtained;
outputting the test result of the running interval under the virtual grouping as passing under the condition that the test result of the running interval of all intervals is passing;
otherwise, outputting the test result of the running interval under the virtual grouping as failed.
Optionally, fig. 4 shows a test result of a corresponding interval running interval for any interval running interval, where each interval running interval corresponds to each running moment, and the present invention tests each interval running interval corresponding to all running moments, so as to obtain a test result of all interval running intervals.
The test results shown in the present invention may be presented in a list form as shown in table 1 below:
TABLE 1
As shown in table 1, the specific result of the calculated interval running distance is compared with the virtual train interval running distance index through the testing device, and the testing result is automatically output, and when the calculated result is smaller than 200 meters, the testing result is passed; and when the calculated result is greater than or equal to 200 meters, the test result is not passed, and the final test device outputs a test result information list, wherein the test result information list comprises the tested train running interval, interval category, grouping type, train number, running speed value, interval running interval information and test result.
Optionally, under the condition that the test results of all interval running intervals are passed, the test results of the running intervals of the virtual marshalling train in the running process are considered to be passed under the preset test scene, and if the test results of the interval running intervals corresponding to any running moment are not passed, the test results of the running intervals under the virtual marshalling are output to be not passed.
Because the marshalling trains have dynamic property in the running process, the running interval needs to be monitored and adjusted in real time so as to ensure the safety and the efficiency of marshalling running. The invention realizes the real-time measurement of the running distance of the marshalling trains by the test method, outputs the measurement result in time, provides reliable data support for adjusting and optimizing the marshalling running parameters, is beneficial to improving the real-time monitoring capability of the marshalling running, and improves the reliability and the application effect of the urban rail virtual marshalling technology.
Optionally, after outputting the test result of the running interval under the virtual consist as not passing, the method further comprises:
adjusting virtual operation control parameters of the virtual marshalling train;
obtaining the test operation data of the virtual marshalling train again until the test result of the operation space under the virtual marshalling is output to pass;
the virtual running control parameters of the virtual marshalling train at least comprise acceleration of the marshalling front car and the marshalling rear car under the virtual marshalling.
After the test result of the running interval under the virtual marshalling is output, the problem and some defects of the running interval under the virtual marshalling are found, the virtual running control parameters of the virtual marshalling train are adjusted, the virtual running control parameters of the virtual marshalling train at least comprise the acceleration of the front car and the rear car under the virtual marshalling, after the virtual running control parameters of the virtual marshalling train are adjusted, the test running data of the virtual marshalling train are obtained again, if the test result of the running interval under the virtual marshalling is output, the virtual running control parameters of the virtual marshalling train are adjusted again, and if the test result of the running interval under the virtual marshalling is output, the adjustment is stopped.
Optionally, for each test adjustment, the invention can output the test result in a visual form, is convenient for the testers to further analyze and evaluate, can evaluate and improve according to the comparison between the output result and the expected index effect, and if the test result is not passed, the testers can analyze according to the specific value output by the test result, modify the control parameters in the marshalling train interval operation control algorithm and re-perform the test verification of the virtual marshalling train interval operation interval.
The invention solves the limitation and the deficiency of the virtual marshalling train operation space test in the prior art, outputs the test result of the operation space under the virtual marshalling by collecting and analyzing the real train operation data, effectively improves the safety in the operation process of the virtual marshalling train, improves the test accuracy and the test reliability, has important significance for the operation space test verification and algorithm optimization and parameter adjustment in the actual marshalling operation process of the urban rail virtual marshalling train by continuously adjusting the virtual operation control parameters of the virtual marshalling train, and provides reliable technical support and guarantee for the application of the urban rail virtual marshalling technology in the urban rail traffic system.
Fig. 6 is a second flow chart of the method for testing the running distance under the virtual consist, as shown in fig. 6, the invention connects the testing device to the recording board of the vehicle-mounted equipment of the virtual consist train, the testing device comprises a data acquisition module, a data analysis module, a data calculation module and a testing result output module, specifically, the invention starts the testing scene firstly, in the data acquisition module, judges whether the virtual consist is established successfully according to the consist establishment, and resets the testing scene under the condition that the virtual consist is failed to establish.
Under the condition that the virtual marshalling is established successfully, all train data are transmitted to a data analysis module through data acquisition and data preprocessing, the data classification is firstly carried out on all the train data, marshalling train operation data and laser radar measurement data are determined, data screening is carried out on the marshalling train operation data, marshalling front car data and marshalling rear car data are determined, through judging the operation speeds of the marshalling front car and the marshalling rear car under different operation moments, and front car position information and rear car position information are output.
And sending the front car position information and the rear car position information to the data calculation module, calculating a position difference value according to the front car position information and the rear car position information, judging whether the position difference value is greater than or equal to 100 meters, if the position difference value is greater than or equal to 100 meters, determining a marshalling train operation distance by using the calculated position difference value, if the position difference value is less than 100 meters, determining the marshalling train operation distance by using a measured value of a laser radar, outputting the marshalling train operation distance to the test result output module after determining the marshalling train operation distance, judging according to an expected result, outputting a test result to pass under the condition that the interval operation distance is less than 200 meters, printing a table, outputting a test result to fail under the condition that the interval operation distance is greater than or equal to 200 meters, and simultaneously, manually evaluating and modifying a marshalling operation control parameter so as to reset a test scene.
The method and the device measure and verify the running distance in the running process of the virtual marshalling train, realize comprehensive verification of the running distance by collecting the actual running data of the virtual marshalling train, analyzing the key value and calculating the running distance index, realize real-time measurement and result output of the running distance in the dynamic running process of the train, have important significance for test verification, algorithm optimization and parameter adjustment of the running distance in the running process of the virtual marshalling train, fill the technical blank in the related technical field, and provide reliable technical support and guarantee for application of virtual marshalling technology of urban rail trains.
FIG. 7 is a third flow chart of the method for testing the running distance under the virtual consist according to the present invention, wherein the invention provides a testing device, which comprises a data acquisition module, a data analysis module, a data calculation module and a testing result output module, wherein the data acquisition module is responsible for acquiring running basic data information of the virtual consist train, such as train speed, position information, laser radar measurement information, etc., in real time; the data analysis module is responsible for preprocessing, feature extraction, analysis and screening of the acquired data; the data calculation module is responsible for comparing the data, extracting train position information and calculating; the test result output module is used for generating a final test result and realizing test result output for further analysis and evaluation.
The invention firstly designs and describes a test scene, then sets a test device to ensure that the test device can normally receive actual running data sent by vehicle-mounted equipment, installs laser radar equidistant measurement equipment at the top of the locomotive of the train to be tested, is used for measuring and collecting distance values of the front train and the rear train, and outputs the distance values to the test device.
Then, executing a test scene and collecting test data, starting train operation according to the designed test scene to enable the train to enter a virtual marshalling mode for operation, collecting and preprocessing the test data through a test device in the virtual marshalling train interval operation process, analyzing the test data, calculating the test data and outputting the test result, and finally analyzing and evaluating the test result.
Fig. 8 is a schematic structural diagram of a virtual under-consist running interval testing device provided by the present invention, and the present invention provides a virtual under-consist running interval testing device, including a screening unit 1: the screening unit 1 is configured to screen target position information of each operation time from test operation data of the virtual marshalling train, where the target position information includes front car position information and rear car position information, and the working principle of the screening unit 1 may refer to the foregoing step 101 and will not be described herein.
The virtual grouping running interval testing device further includes a determining unit 2, configured to determine, for any running time, a running interval of an interval corresponding to each running time according to a relationship between the target position difference and the first preset distance, and the working principle of the determining unit 2 may refer to the foregoing step 102 and will not be repeated herein.
The virtual grouping running interval testing device further includes an output unit 3, configured to output, for any interval running interval, a test result of the interval running interval according to the interval running interval and the second preset distance, where the working principle of the output unit 3 may refer to the foregoing step 103, and will not be described herein.
The target position difference value is determined according to the front vehicle position information and the rear vehicle position information.
The invention provides a method, a device, equipment and a medium for testing running intervals under virtual marshalling, which are used for screening front car position information and rear car position information of each running time from test running data of a virtual marshalling train to determine a target position difference value, determining interval running intervals corresponding to each running time according to the magnitude relation between the target position difference value and a first preset distance, and outputting test results of the interval running intervals according to the interval running intervals and a second preset distance.
Fig. 9 is a schematic structural diagram of an electronic device provided by the present invention. As shown in fig. 9, the electronic device may include: processor 910, communication interface (Communications Interface), memory 930, and communication bus 940, wherein processor 910, communication interface 920, and memory 930 communicate with each other via communication bus 940. Processor 910 can invoke logic instructions in memory 930 to perform a virtual marshalling run-distance test method comprising: screening target position information of each running moment from test running data of the virtual marshalling train, wherein the target position information comprises front car position information and rear car position information; for any running time, determining a section running interval corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance; for any interval running interval, outputting a test result of the interval running interval according to the interval running interval and a second preset distance; the target position difference value is determined according to the front vehicle position information and the rear vehicle position information.
Further, the logic instructions in the memory 930 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, the computer program product including a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of executing a virtual marshalling running interval test method provided by the above methods, the method comprising: screening target position information of each running moment from test running data of the virtual marshalling train, wherein the target position information comprises front car position information and rear car position information; for any running time, determining a section running interval corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance; for any interval running interval, outputting a test result of the interval running interval according to the interval running interval and a second preset distance; the target position difference value is determined according to the front vehicle position information and the rear vehicle position information.
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 virtual consist running distance test method provided by the methods above, the method comprising: screening target position information of each running moment from test running data of the virtual marshalling train, wherein the target position information comprises front car position information and rear car position information; for any running time, determining a section running interval corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance; for any interval running interval, outputting a test result of the interval running interval according to the interval running interval and a second preset distance; the target position difference value is determined according to the front vehicle position information and the rear vehicle position information.
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 (10)
1. A method for testing running distance under virtual grouping, comprising:
screening target position information of each running moment from test running data of the virtual marshalling train, wherein the target position information comprises front car position information and rear car position information;
for any running time, determining a section running interval corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance;
for any interval running interval, outputting a test result of the interval running interval according to the interval running interval and a second preset distance;
the target position difference value is determined according to the front vehicle position information and the rear vehicle position information.
2. The method for testing the running distance under a virtual consist according to claim 1, wherein the step of screening the target position information of each running time from the test running data of the virtual consist train comprises the steps of:
determining the running speed of the vehicle before the marshalling and the running speed of the vehicle after the marshalling corresponding to each running moment in all running moments from the test running data of the virtual marshalling train;
and for any running time, acquiring target position information corresponding to the running time when the running speed of the vehicle before the marshalling is greater than or equal to a first preset speed and the running speed of the vehicle after the marshalling is greater than or equal to a second preset speed.
3. The method for testing the running distance under virtual consist according to claim 1, wherein determining the interval running distance corresponding to each running time according to the magnitude relation between the target position difference value and the first preset distance comprises:
for any running time, determining that the target position difference value is the interval running distance under the condition that the target position difference value is greater than or equal to the first preset distance;
and under the condition that the target position difference value is smaller than the first preset distance, determining laser radar data measured at the corresponding operation time of the target position difference value from test operation data of the virtual marshalling train, and determining the laser radar data as the interval operation distance.
4. The method for testing the running interval under virtual consist according to claim 1, wherein the outputting the test result of the running interval according to the running interval of the interval and the second preset distance comprises:
outputting a test result of the interval running interval to pass under the condition that the interval running interval is smaller than the second preset distance for any interval running interval;
Outputting a test result of the interval running interval to be failed under the condition that the interval running interval is larger than or equal to the second preset distance.
5. The method for testing the running interval under virtual consist according to claim 4, wherein after outputting the test result of the interval running interval, the method further comprises:
traversing all interval operation intervals until test results of all interval operation intervals are obtained;
outputting the test result of the running interval under the virtual grouping as passing under the condition that the test result of the running interval of all intervals is passing;
otherwise, outputting the test result of the running interval under the virtual grouping as failed.
6. The method for testing the virtual consist interval of claim 5, wherein after outputting the test result of the virtual consist interval as failed, the method further comprises:
adjusting virtual operation control parameters of the virtual marshalling train;
obtaining the test operation data of the virtual marshalling train again until the test result of the operation space under the virtual marshalling is output to pass;
the virtual running control parameters of the virtual marshalling train at least comprise acceleration of the marshalling front car and the marshalling rear car under the virtual marshalling.
7. The virtual consist operational distance test method of claim 1, wherein prior to screening the target location information for each operational time from the test operational data of the virtual consist train, the method further comprises:
in a preset test scene, constructing a virtual marshalling train in the running process of a marshalling front car and a marshalling rear car;
acquiring train initial data of the virtual marshalling train;
cleaning the initial train data, and screening out first operation data;
performing time sequence adjustment on the first operation data to obtain second operation data;
and performing time stamp alignment operation on the second operation data to generate test operation data of the virtual marshalling train.
8. A virtual consist run-down distance test apparatus, comprising:
screening unit: the method comprises the steps of screening target position information of each running moment from test running data of a virtual marshalling train, wherein the target position information comprises front car position information and rear car position information;
the determining unit is used for determining the interval operation distance corresponding to each operation moment according to the magnitude relation between the target position difference value and the first preset distance for any operation moment;
The output unit is used for outputting a test result of the interval running interval according to the interval running interval and a second preset distance for any interval running interval;
the target position difference value is determined according to the front vehicle position information and the rear vehicle position information.
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 running distance test method of any of claims 1-7 when the program is executed.
10. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the virtual consist running distance test method of any of claims 1-7.
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