CN117208052A - Method, device, equipment and medium for testing synchronization of arrival under virtual grouping - Google Patents
Method, device, equipment and medium for testing synchronization of arrival under virtual grouping Download PDFInfo
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Abstract
The invention provides a method, a device, equipment and a medium for testing the synchronization of a station entering under virtual grouping, which relate to the technical field of rail transit and comprise the following steps: in the process of entering a virtual marshalling train, acquiring running data of the train before marshalling and running data of the train after marshalling; determining the arrival synchronization time according to the front vehicle zero speed time corresponding to the front vehicle running data and the rear vehicle zero speed time corresponding to the rear vehicle running data; outputting a test result of the synchronization of the station entering under the virtual grouping according to the synchronization time of the station entering; the zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time. The invention can accurately verify the synchronism of the virtual marshalling train in the process of entering the station, is beneficial to improving the verification and improvement of the synchronism of entering the station of the marshalling operation of the urban rail train, thereby improving the research and development of the urban rail train virtual marshalling technology, providing reliable technical support for the application of the urban rail train virtual marshalling technology and improving the operation efficiency of the virtual marshalling train.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a method, a device, equipment and a medium for testing the synchronization of a landing under virtual marshalling.
Background
The invention patent application with the application publication number of CN116395006A discloses a synchronous inbound control method and system for a virtual marshalling train, wherein the method comprises the following steps: constructing a virtual marshalling train model based on the Lebelger approximation model LAM; determining an objective function based on a LAM according to the synchronous inbound control requirement of the virtual marshalling train, and establishing a shrinkage model prediction control CMPC problem model according to the objective function, the aperiodic discrete state space equation and the constraint condition; solving the CMPC problem model, and determining an optimal control sequence of the tracked train; controlling the virtual marshalling train to enter a station synchronously according to the optimal control sequence; the invention patent application with the application publication number of CN116039729A discloses a method, a system and a storage medium for controlling synchronous stepping outbound of a virtual marshalling train, wherein the method comprises the following steps: acquiring position information of a front car and a rear car of the virtual group train; identifying the running states of the virtual marshalling trains according to the position information of the front train and the rear train, wherein the running states of the virtual marshalling trains comprise an outbound state, a driving-off speed limit interval state and an inbound state; and acquiring the operation parameters of the front car and the rear car of the virtual group train, and controlling the front car and the rear car to go out in the same step according to the operation parameters of the front car and the rear car.
The prior art mainly focuses on the operation control aspect after the establishment of the marshalling, but the lack of the synchronous test of the urban rail virtual marshalling train entering can not comprehensively evaluate the synchronous of the virtual marshalling train in the process of entering the station, so that the application of the virtual marshalling technology in an urban rail traffic system is limited.
Disclosure of Invention
The invention provides a method, a device, equipment and a medium for testing the synchronization of a virtual marshalling station, which are used for solving the technical defect that the synchronization of the virtual marshalling station cannot be evaluated at present, and the running efficiency of a train under the virtual marshalling station cannot be guaranteed.
In a first aspect, the present invention provides a method for testing synchronization of a station under a virtual group, including:
in the process of entering a virtual marshalling train, acquiring running data of the train before marshalling and running data of the train after marshalling;
determining a stop-in synchronization time according to the front vehicle zero-speed time corresponding to the grouped front vehicle running data and the rear vehicle zero-speed time corresponding to the grouped rear vehicle running data;
outputting a test result of the arrival synchronism under the virtual grouping according to the arrival synchronous duration;
the zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
According to the method for testing the synchronization of the station entering under the virtual grouping, the method for determining the synchronization time of the station entering according to the zero speed moment of the front car corresponding to the running data of the front car and the zero speed moment of the rear car corresponding to the running data of the rear car comprises the following steps:
determining a first period number corresponding to the running time when the speed of the front vehicle is smaller than the preset speed within the first preset time period from the running data of the front vehicles in the group;
determining a second period number corresponding to the running time when the rear vehicle speed is smaller than the preset speed within the first preset time period from the grouped vehicle running data;
determining a period difference value according to the second period number and the first period number;
and determining the inbound synchronization time length according to the period difference value and a preset period time length.
According to the method for testing the synchronization of the virtual marshalling lower station provided by the invention, the test result of the synchronization of the virtual marshalling lower station is output according to the synchronization time length of the station, and the method comprises the following steps:
outputting a test result of the arrival synchronism under the virtual grouping to pass under the condition that the arrival synchronous time length is smaller than or equal to a second preset time length;
And outputting a test result of the arrival synchronism under the virtual grouping to be failed under the condition that the arrival synchronism time length is longer than the second preset time length.
According to the method for testing the synchronization of the virtual marshalling lower station provided by the invention, after the test result of the synchronization of the virtual marshalling lower station is output to be failed, the method further comprises the following steps:
adjusting the synchronization parameter of the station entering under the virtual grouping;
acquiring running data of the vehicles before the marshalling and running data of the vehicles after the marshalling again to output a test result of the synchronization of the lower station of the virtual marshalling;
until the test result of the arrival synchronism under the virtual grouping is output to pass;
the virtual marshalling lower station entering synchronicity parameters at least comprise acceleration parameters of a front vehicle and acceleration parameters of a rear vehicle under the virtual marshalling.
According to the method for testing the synchronization of the virtual marshalling lower station provided by the invention, before the running data of the vehicle before marshalling and the running data of the vehicle after marshalling are acquired, the method further comprises the following steps:
establishing a virtual marshalling train which is associated with the pre-marshalling train and the post-marshalling train in an operation section from a first preset station to a second preset station;
generating a data acquisition instruction under the condition that the virtual marshalling train is determined to be in a station entering process of any station to be tested;
The data acquisition instruction is used for acquiring the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data of the station to be detected.
According to the method for testing the synchronization of the virtual marshalling lower station provided by the invention, after the test result of the synchronization of the virtual marshalling lower station is output according to the synchronization time length of the station, the method further comprises the following steps:
traversing each station to be tested in the station to be tested queue according to a preset sequence to obtain a test result of the synchronization of the virtual grouping of each station to be tested;
each station to be tested in the station queue to be tested at least has a train running direction characteristic when entering a station, a train running time characteristic when entering the station, a gradient characteristic when entering the station and an external environment characteristic when entering the station;
the external environment characteristics at least comprise current wind direction characteristics, current wind speed characteristics and current temperature and humidity characteristics.
According to the method for testing the synchronization of the virtual marshalling lower landing, after the data acquisition instruction is generated and before the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data are acquired, the method further comprises the following steps:
acquiring initial data of a vehicle before the marshalling and initial data of the vehicle after the marshalling;
Cleaning the initial data of the front vehicles and the initial data of the rear vehicles before the marshalling, and screening out first front vehicle operation data and first rear vehicle operation data;
performing time sequence adjustment on the first front vehicle operation data and the first rear vehicle operation data to acquire second front vehicle operation data and second rear vehicle operation data;
and performing alignment time stamp operation on the second front vehicle operation data and the second rear vehicle operation data to generate the front vehicle operation data and the rear vehicle operation data.
In a second aspect, a device for testing the synchronization of a station under a virtual grouping is provided, including:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring pre-marshalling vehicle running data and post-marshalling vehicle running data in the process of virtually marshalling the train to enter;
the determining unit is used for determining the arrival synchronization time according to the front vehicle zero speed time corresponding to the grouped front vehicle running data and the rear vehicle zero speed time corresponding to the grouped rear vehicle running data;
the output unit is used for outputting a test result of the arrival synchronism under the virtual grouping according to the arrival synchronous duration;
the zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
In a third aspect, the present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the method for testing the synchronization of the virtual group down-arrival 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 method of testing for syncope under virtual consist as described in any of the above.
The invention provides a method, a device, equipment and a medium for testing the synchronization of a virtual marshalling lower station, which are used for acquiring the running data of a front car and the running data of a rear car before marshalling in the process of the virtual marshalling train, determining the synchronization time of the marshalling lower station according to the zero speed time of the front car corresponding to the running data of the front car and the zero speed time of the rear car corresponding to the running data of the rear car, and outputting the test result of the synchronization of the virtual marshalling lower station according to the synchronization time of the marshalling lower station.
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 flow chart of a method for testing the synchronization of the station entering under the virtual grouping provided by the invention;
FIG. 2 is a schematic flow chart of determining the inbound synchronization time length provided by the invention;
FIG. 3 is a flow chart of the output inbound synchronization test result provided by the invention;
FIG. 4 is a second flow chart of a method for testing the synchronization of the virtual marshalling in the present invention;
fig. 5 is a schematic view of a scene of a virtual marshalling train in a process of entering a station;
FIG. 6 is a third flow chart of a method for testing the synchronization of the virtual marshalling lower landing provided by the present invention;
FIG. 7 is a flow chart of a method for testing the synchronization of the virtual marshalling lower landing provided by the present invention;
FIG. 8 is a schematic diagram of a device for testing the synchronization of the virtual marshalling lower landing provided by the 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 of urban rail trains is an important technical innovation in the field of urban rail traffic in recent years, and the running efficiency and the energy utilization rate of an urban rail traffic system can be improved by marshalling a plurality of trains into one running unit. In the virtual marshalling system, good cooperativity is required to be provided among trains, and especially in the process of entering a station, the cooperativity is important to ensure the safety of the trains and the entering efficiency. The current urban rail train virtual marshalling technical research mainly focuses on the aspects of marshalling establishment, operation control and safety in the marshalling operation process and the like, and comprises the steps of collecting and analyzing actual train operation data and generating operation control instructions.
The present invention provides a method, device, equipment and medium for testing the synchronization of virtual marshalling under the marshalling, and fig. 1 is one of the flow diagrams of the method for testing the synchronization of virtual marshalling under the marshalling, and the method for testing the synchronization of virtual marshalling under the marshalling comprises:
step 101, acquiring running data of a train before marshalling and running data of the train after marshalling in a process of entering a virtual marshalling train;
102, determining a stop-entering synchronous time according to a front vehicle zero-speed time corresponding to the grouped front vehicle running data and a rear vehicle zero-speed time corresponding to the grouped rear vehicle running data;
step 103, outputting a test result of the synchronization of the station entering under the virtual grouping according to the synchronization time of the station entering;
The zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
In step 101, a pre-group train and a post-group train are built into a virtual group train, after the virtual group train is built, when it is determined that the virtual group train is about to run to any station to be tested for entering, according to test equipment arranged on the pre-group train and the post-group train of the virtual group train, the pre-group train running data and the post-group train running data are obtained, wherein the pre-group train running data comprise speed, position and acceleration of the pre-group train, and the post-group train running data comprise speed, position and acceleration of the post-group train.
In step 102, according to the preceding zero speed moment corresponding to the pre-marshalling vehicle running data and the following zero speed moment corresponding to the following vehicle running data, the arrival synchronization time is determined, in the embodiment of the invention, the zero speed moment is that the speed of the train is continuously smaller than the preset speed in the preset time period, the train enters the zero speed moment is judged, alternatively, the preset time period can be 5 periods, the time of each period is 200 milliseconds, at this time, the control system of the invention outputs a zero speed mark, and the invention obtains the preceding zero speed moment by searching the preceding vehicle running data with the speed continuously smaller than the preset speed in the preset time period and the following vehicle running data with the speed continuously smaller than the preset speed in the preset time period.
Optionally, by comparing the front vehicle zero speed time corresponding to the front vehicle running data and the rear vehicle zero speed time corresponding to the rear vehicle running data, the arrival synchronicity under the virtual group can be reflected, the closer the time interval between the front vehicle zero speed time and the rear vehicle zero speed time is, the better the arrival synchronicity under the virtual group is indicated, and the farther the time interval between the front vehicle zero speed time and the rear vehicle zero speed time is, the worse the arrival synchronicity under the virtual group is indicated.
Optionally, according to the time interval between the zero speed moment of the front car and the zero speed moment of the rear car, the arrival synchronization time of the virtual marshalling train in the arrival process can be determined.
In step 103, a test result of the inbound synchronization under the virtual group is output according to the inbound synchronization time length, and the method can preset a verification standard of the inbound synchronization according to actual needs, for example, a preset time length for evaluating the inbound synchronization is set, when the inbound synchronization time length is smaller than or equal to the preset time length, the inbound synchronization is considered to be better, and when the inbound synchronization time length is longer than the preset time length, the inbound synchronization is considered to be worse.
The invention provides a method, a device, equipment and a medium for testing the arrival synchronism under virtual marshalling, which fill the blank in the prior art by real-time data acquisition and analysis, extraction and analysis of key values, quantitative arrival synchronism index, arrival synchronism test result output and comprehensive evaluation and optimization of the arrival synchronism, can rapidly verify the synchronism of a virtual marshalling train in the arrival process, improves the test efficiency, provides reliable technical support and guarantee for the operation of urban rail traffic systems, and has important significance for the arrival synchronism test and optimization of urban rail virtual marshalling trains.
In the process of entering the virtual marshalling train, the invention acquires the running data of the front car and the running data of the rear car before the marshalling, determines the entering synchronous time according to the zero speed time of the front car corresponding to the running data of the front car and the zero speed time of the rear car corresponding to the running data of the rear car, and outputs the test result of the entering synchronism under the virtual marshalling according to the entering synchronous time.
Fig. 2 is a schematic flow chart of determining a docking synchronization time provided by the present invention, where determining the docking synchronization time according to a front vehicle zero speed time corresponding to the running data of the front vehicle before the grouping and a rear vehicle zero speed time corresponding to the running data of the rear vehicle after the grouping includes:
step 201, determining a first period number corresponding to an operation time when the speed of the front vehicle is smaller than the preset speed within the first preset duration from the operation data of the front vehicles in the group;
step 202, determining a second period number corresponding to the running time when the rear vehicle speed is smaller than the preset speed within the first preset time period from the grouped vehicle running data;
step 203, determining a period difference value according to the second period number and the first period number;
and 204, determining the inbound synchronization time length according to the period difference value and a preset period time length.
In step 201, if it is determined that the preceding vehicle speed is less than the preset speed within the first preset time period from a certain running time by analyzing the pre-consist running data, it is determined that the running time is a preceding vehicle zero speed time, and since there is time information having a period as a unit of measurement in the train running data, a period number corresponding to the preceding vehicle zero speed, that is, a first period number, for example, the first period number is a second period, can be determined according to the preceding vehicle zero speed time.
In step 202, if it is determined that the post-vehicle speed is less than the preset speed within the first preset time period from a certain running time by analyzing the post-vehicle running data, the running time is determined to be a post-vehicle zero-speed time, and according to the post-vehicle zero-speed time, a cycle number corresponding to the post-vehicle zero-speed, that is, a second cycle number, for example, the second cycle number is a twelfth cycle, may be determined.
Step 203, determining a period difference according to the second period number and the first period number, and if the second period number is the twelfth period and the first period number is the second period, determining the period difference as ten periods.
In step 204, optionally, the period difference is ten periods, and the preset period duration is 200 ms, and the inbound synchronization duration is determined to be 2 seconds according to the product of the period difference and the preset period duration.
According to the invention, the cycle number corresponding to the zero-speed moment of the train is used as a verification standard for evaluating the synchronization of the virtual marshalling, and a quantitative synchronization index is obtained through calculation and analysis of the running data of the train before marshalling and the running data of the train after marshalling, so that the coordination level of the virtual marshalling train in the process of marshalling is objectively evaluated, and scientific and comparable indexes are provided for evaluating the synchronization of the marshalling, so that the running optimization of the urban rail virtual marshalling system is better guided.
Fig. 3 is a schematic flow chart of outputting a test result of inbound synchronization according to the present invention, where the outputting the test result of inbound synchronization under a virtual group according to the inbound synchronization duration includes:
step 301, outputting a test result of the arrival synchronism under the virtual grouping to pass when the arrival synchronization time is less than or equal to a second preset time;
step 302, outputting a test result of the arrival synchronism under the virtual grouping to be failed when the arrival synchronization time is longer than the second preset time.
In step 301, the second preset duration may be 4 seconds, if the inbound synchronization duration is 2.8 seconds, it is determined that the inbound synchronization duration is less than or equal to the second preset duration, and a test result of inbound synchronization under the virtual group is output as passing.
In step 302, the second preset duration may be 4 seconds, if the inbound synchronization duration is 4.2 seconds, it is determined that the inbound synchronization duration is longer than the second preset duration, and a test result of inbound synchronization under the virtual grouping is output as failed.
Optionally, the invention compares the arrival synchronization time length with the train arrival synchronization index, and automatically outputs a test result, and when the arrival synchronization time length is less than or equal to 4 seconds, the test result is passed; when the arrival synchronization time is longer than 4 seconds, the test result is failed, and finally a test result information list is output, wherein the test result information list comprises a tested platform, a platform category, a grouping type, a train number, an arrival synchronization time value and a test result, and the test result is shown in the following table 1:
TABLE 1
The invention can output the test result in a report form or data export mode and the like, further intuitively displays the test result of the incoming synchronization, is convenient for further analysis and evaluation, and provides a more convenient and visual mode for presenting the test result compared with the prior art lacking a result output and analysis tool aiming at the incoming synchronization.
Optionally, after outputting the test result of the in-arrival synchronicity under the virtual consist as failed, the method further comprises:
adjusting the synchronization parameter of the station entering under the virtual grouping;
acquiring running data of the vehicles before the marshalling and running data of the vehicles after the marshalling again to output a test result of the synchronization of the lower station of the virtual marshalling;
until the test result of the arrival synchronism under the virtual grouping is output to pass;
the virtual marshalling lower station entering synchronicity parameters at least comprise acceleration parameters of a front vehicle and acceleration parameters of a rear vehicle under the virtual marshalling.
After the virtual marshalling under-station synchronicity test result is not passed, the problem and some defects of the virtual marshalling under-station synchronicity are found, the virtual marshalling under-station synchronicity parameter is adjusted, the acceleration parameter of the front vehicle and the acceleration parameter of the rear vehicle are at least included under the virtual marshalling, after the virtual marshalling under-station synchronicity parameter is adjusted, the running data of the front vehicle and the running data of the rear vehicle after the marshalling are obtained again, so as to output the virtual marshalling under-station synchronicity test result, if the virtual marshalling under-station synchronicity test result is not passed, the virtual marshalling under-station synchronicity parameter is adjusted again, and if the virtual marshalling under-station synchronicity test result is passed, the adjustment is stopped.
The invention aims to solve the limitation and the defect of the check on the arrival synchronism test under the virtual marshalling in the prior art, and the table data is output by collecting and analyzing the real train operation data so as to intuitively display the test result and facilitate the analysis and evaluation of testers.
Fig. 4 is a second flow chart of a method for testing the synchronization of the virtual under-marshalling station according to the present invention, before acquiring the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data, further comprising:
step 401, establishing a virtual marshalling train which is associated with the pre-marshalling train and the post-marshalling train in an operation section from a first preset station to a second preset station;
step 402, generating a data acquisition instruction under the condition that the virtual marshalling train is determined to be in a station entering process of any station to be tested;
The data acquisition instruction is used for acquiring the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data of the station to be detected.
In step 401, referring to fig. 5, fig. 5 is a schematic view of a scenario of a virtual marshalling train in the process of entering a station, where the virtual marshalling train establishes a marshalling between station 3 and station 2, and runs in a virtual marshalling mode, and the train in the virtual marshalling running mode runs from station 3 to station 2 down.
In step 402, in the case of determining that the virtual marshalling train enters the entering process of any station, a data acquisition instruction is generated, where the data acquisition instruction is used to acquire the pre-marshalling train operation data and the post-marshalling train operation data of the station to be tested, that is, the train operation data of the pre-marshalling train and the post-marshalling train is acquired.
According to the invention, the test scene is designed, and the train operation is started in the test scene, so that the train enters the virtual marshalling mode for operation, and in the process of virtual marshalling train entering, test data are collected through the test device, so that the technical blank of urban rail virtual marshalling technology in the aspect of entering synchronism test is filled, and a test basis is provided for effectively verifying the synchronism of the virtual marshalling train in the process of entering.
Optionally, after outputting the test result of the synchronization of the virtual marshalling according to the synchronization time length of the landing, the method further comprises:
traversing each station to be tested in the station to be tested queue according to a preset sequence to obtain a test result of the synchronization of the virtual grouping of each station to be tested;
each station to be tested in the station queue to be tested at least has a train running direction characteristic when entering a station, a train running time characteristic when entering the station, a gradient characteristic when entering the station and an external environment characteristic when entering the station;
the external environment characteristics at least comprise current wind direction characteristics, current wind speed characteristics and current temperature and humidity characteristics.
According to the invention, stations to be tested with different characteristics can be respectively arranged according to different characteristics of train running direction, train running time, gradient and external environment during entering, so as to verify the influence difference caused by the synchronism of entering under the virtual marshalling under different test conditions, for example, the train running direction characteristics comprise the train running direction and the train running direction, and the train running time characteristics during entering comprise the running time of the train in the continuous running and testing processes, so as to verify the influence of the difference of the running time on the synchronism of entering under the virtual marshalling; the slope characteristic of the entering station comprises the influence on the synchronization of the entering station under the virtual marshalling when the train is in a non-horizontal state, such as 5 DEG slope, 15 DEG slope and the like; the external environment characteristics during the arrival at least comprise current wind direction characteristics, current wind speed characteristics and current temperature and humidity characteristics, namely, verification on influence generated by synchronization during the arrival of the train under different wind direction characteristics, different wind speed characteristics and different temperature and humidity characteristics.
Optionally, after all stations to be tested are determined, sorting all stations to be tested according to a preset sequence, and further constructing a station queue to be tested.
Optionally, after generating the data acquisition instruction and before acquiring the pre-group vehicle operation data and the post-group vehicle operation data, the method further comprises:
acquiring initial data of a vehicle before the marshalling and initial data of the vehicle after the marshalling;
cleaning the initial data of the front vehicles and the initial data of the rear vehicles before the marshalling, and screening out first front vehicle operation data and first rear vehicle operation data;
Performing time sequence adjustment on the first front vehicle operation data and the first rear vehicle operation data to acquire second front vehicle operation data and second rear vehicle operation data;
and performing alignment time stamp operation on the second front vehicle operation data and the second rear vehicle operation data to generate the front vehicle operation data and the rear vehicle operation data.
Optionally, the invention collects the initial data of the pre-marshalling train and the initial data of the post-marshalling train in real time, pre-processes the initial data of the pre-marshalling train and the initial data of the post-marshalling train, the pre-process comprises data cleaning, time sequence adjustment and time stamp alignment, the pre-process operation is used for ensuring the accuracy and the usability of the data, and finally, the operation such as feature extraction and analysis is carried out according to the pre-processed running data of the pre-marshalling train and the post-marshalling running data of the post-marshalling train to generate test result output.
Fig. 6 is a third flow chart of a method for testing the synchronization of the arrival under virtual grouping, which is provided by the invention, the method for testing shown in fig. 6 comprises a testing device for testing, wherein the testing device comprises a data acquisition module, a data analysis module, a data calculation module and a test result output module, specifically, the invention firstly sets a test scene, starts the test scene, realizes data acquisition and data preprocessing in the data acquisition module, realizes data screening in the data analysis module, acquires the data of the vehicle before the grouping and the data of the vehicle after the grouping, performs data judgment according to timestamp synchronization and parameter extraction, determines the calculation of the zero-speed moment of the vehicle before the grouping and the zero-speed moment of the vehicle after the grouping in the data calculation module, performs synchronization index calculation, and finally determines the expected result in the test result output module, if the arrival synchronization time is less than or equal to 4 seconds, the test result is output to pass, and if the arrival synchronization time is greater than 4 seconds, the test result is output to fail.
Optionally, the invention can output the test result in a visual form, which is convenient for the testers to further analyze and evaluate, the testers can compare the output result with the expected index effect to evaluate and improve, if the test result is failed, the form of form printing or electronic form output can be adopted to intuitively present the test result, the testers can analyze according to the specific value output by the test result, modify the control parameters in the inbound synchronization algorithm, manually evaluate and modify the inbound synchronization parameters, restart the test scene, and carry out test verification of the inbound synchronization of the virtual marshalling train again until the test result is passed.
Fig. 7 is a schematic flow chart of a method for testing the arrival synchronism under virtual marshalling, which is provided by the invention, by arranging a testing device, the testing device is connected into a record board of the vehicle-mounted equipment of the virtual marshalling train, the testing device can normally receive actual operation data sent by the vehicle-mounted equipment, the virtual marshalling train operation data acquisition is realized according to a data acquisition module, such as the speed, the position and the acceleration of the train, the data preprocessing, the data screening, the feature extraction or the screening are realized according to a data analysis module, the acquired data is required to be classified according to a front marshalling train and a rear marshalling train in the data analysis process, after the data classification, the timestamp synchronization is carried out on the data of the front marshalling train and the rear marshalling train, and the key parameter values used for data calculation are extracted, the key parameter values comprise the cycle numbers of the operation data of the front marshalling train and the rear marshalling train are analyzed and extracted through a data processing technology, and the arrival synchronism index is calculated, and a reliable data basis is provided for verifying the arrival synchronism of the virtual marshalling train.
Optionally, the data calculation module is used for extracting the entering synchronization parameter data and calculating the index data, the data calculation module is used for calculating the entering synchronization index of the train, the key parameter values extracted by the data analysis module are calculated, the input zero-speed time of the train before and after the train is respectively determined, then the period number values of the zero-speed time of the train after the train and the train before the train are subjected to difference, the period number values are multiplied by the operation period time, for example, 200 milliseconds, the specific result of the entering synchronization of the train is calculated, namely, the entering synchronization time is calculated, the test result output is realized through the test result output module, and the final test result is generated for further analysis and evaluation.
By the cooperation implementation of the testing method and the testing device, the synchronous performance of the virtual marshalling train in the process of entering the station can be comprehensively verified by collecting the actual operation data, analyzing the key value and calculating the synchronous index of entering the station, thus being beneficial to improving the synchronous verification and improvement of the entering of the urban rail train marshalling operation, providing reliable technical support for the application of the urban rail train virtual marshalling technology and promoting the wide application of the urban rail train virtual marshalling technology in urban rail traffic systems.
Fig. 8 is a schematic structural diagram of the device for testing the synchronization of the under-virtual-consist, which includes an acquiring unit 1, wherein the acquiring unit is configured to acquire the pre-consist vehicle operation data and the post-consist vehicle operation data during the process of the under-virtual-consist train, and the working principle of the acquiring unit 1 may refer to the foregoing step 101 and is not repeated herein.
The device for testing the synchronization of the arrival under the virtual group further comprises a determining unit 2, wherein the determining unit is configured to determine the synchronization duration of the arrival according to the zero speed time of the preceding vehicle corresponding to the running data of the preceding vehicle and the zero speed time of the following vehicle corresponding to the running data of the following vehicle, and the working principle of the determining unit 2 may refer to the foregoing step 102 and will not be repeated herein.
The device for testing the synchronization of the virtual grouping lower station further comprises an output unit 3, wherein the output unit is configured to output a test result of the synchronization of the virtual grouping lower station according to the synchronization time length of the lower station, and the working principle of the output unit 3 may refer to the step 103 described above and will not be repeated herein.
The zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
The invention provides a method, a device, equipment and a medium for testing the synchronization of a virtual marshalling lower station, which are used for acquiring the running data of a front car and the running data of a rear car before marshalling in the process of the virtual marshalling train, determining the synchronization time of the marshalling lower station according to the zero speed time of the front car corresponding to the running data of the front car and the zero speed time of the rear car corresponding to the running data of the rear car, and outputting the test result of the synchronization of the virtual marshalling lower station according to the synchronization time of the marshalling lower station.
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 may invoke logic instructions in memory 930 to perform a method of testing for drop-in synchronicity under a virtual consist, the method comprising: in the process of entering a virtual marshalling train, acquiring running data of the train before marshalling and running data of the train after marshalling; determining a stop-in synchronization time according to the front vehicle zero-speed time corresponding to the grouped front vehicle running data and the rear vehicle zero-speed time corresponding to the grouped rear vehicle running data; outputting a test result of the arrival synchronism under the virtual grouping according to the arrival synchronous duration; the zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
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 comprising 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 method of testing for virtual group drop-in synchronicity provided by the above methods, the method comprising: in the process of entering a virtual marshalling train, acquiring running data of the train before marshalling and running data of the train after marshalling; determining a stop-in synchronization time according to the front vehicle zero-speed time corresponding to the grouped front vehicle running data and the rear vehicle zero-speed time corresponding to the grouped rear vehicle running data; outputting a test result of the arrival synchronism under the virtual grouping according to the arrival synchronous duration; the zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
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 a method of testing virtual group drop-in synchronicity provided by the above methods, the method comprising: in the process of entering a virtual marshalling train, acquiring running data of the train before marshalling and running data of the train after marshalling; determining a stop-in synchronization time according to the front vehicle zero-speed time corresponding to the grouped front vehicle running data and the rear vehicle zero-speed time corresponding to the grouped rear vehicle running data; outputting a test result of the arrival synchronism under the virtual grouping according to the arrival synchronous duration; the zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
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 the synchronization of a virtual group lower landing, comprising:
in the process of entering a virtual marshalling train, acquiring running data of the train before marshalling and running data of the train after marshalling;
determining a stop-in synchronization time according to the front vehicle zero-speed time corresponding to the grouped front vehicle running data and the rear vehicle zero-speed time corresponding to the grouped rear vehicle running data;
outputting a test result of the arrival synchronism under the virtual grouping according to the arrival synchronous duration;
the zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
2. The method for testing the synchronization of the station entering under the virtual group according to claim 1, wherein the determining the synchronization time of the station entering according to the zero speed time of the front car corresponding to the running data of the front car before the group and the zero speed time of the rear car corresponding to the running data of the rear car after the group comprises:
Determining a first period number corresponding to the running time when the speed of the front vehicle is smaller than the preset speed within the first preset time period from the running data of the front vehicles in the group;
determining a second period number corresponding to the running time when the rear vehicle speed is smaller than the preset speed within the first preset time period from the grouped vehicle running data;
determining a period difference value according to the second period number and the first period number;
and determining the inbound synchronization time length according to the period difference value and a preset period time length.
3. The method for testing the synchronization of the virtual marshalling in the present invention as set forth in claim 1, wherein the outputting the test result of the synchronization of the virtual marshalling in the present invention according to the synchronization time length of the marshalling in the present invention includes:
outputting a test result of the arrival synchronism under the virtual grouping to pass under the condition that the arrival synchronous time length is smaller than or equal to a second preset time length;
and outputting a test result of the arrival synchronism under the virtual grouping to be failed under the condition that the arrival synchronism time length is longer than the second preset time length.
4. The method for testing the synchronization of the virtual marshalling in claim 3, further comprising, after outputting the test result of the synchronization of the virtual marshalling in that it is not passed:
Adjusting the synchronization parameter of the station entering under the virtual grouping;
acquiring running data of the vehicles before the marshalling and running data of the vehicles after the marshalling again to output a test result of the synchronization of the lower station of the virtual marshalling;
until the test result of the arrival synchronism under the virtual grouping is output to pass;
the virtual marshalling lower station entering synchronicity parameters at least comprise acceleration parameters of a front vehicle and acceleration parameters of a rear vehicle under the virtual marshalling.
5. The method for testing the synchronization of a virtual marshalling under a station of claim 1, further comprising, prior to acquiring the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data:
establishing a virtual marshalling train which is associated with the pre-marshalling train and the post-marshalling train in an operation section from a first preset station to a second preset station;
generating a data acquisition instruction under the condition that the virtual marshalling train is determined to be in a station entering process of any station to be tested;
the data acquisition instruction is used for acquiring the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data of the station to be detected.
6. The method for testing the synchronization of virtual marshalling in claim 5, further comprising, after outputting the test result of the synchronization of virtual marshalling in accordance with the synchronization time period of the marshalling:
Traversing each station to be tested in the station to be tested queue according to a preset sequence to obtain a test result of the synchronization of the virtual grouping of each station to be tested;
each station to be tested in the station queue to be tested at least has a train running direction characteristic when entering a station, a train running time characteristic when entering the station, a gradient characteristic when entering the station and an external environment characteristic when entering the station;
the external environment characteristics at least comprise current wind direction characteristics, current wind speed characteristics and current temperature and humidity characteristics.
7. The method of claim 5, wherein after generating the data acquisition instructions and before acquiring the pre-consist and post-consist vehicle operation data, the method further comprises:
acquiring initial data of a vehicle before the marshalling and initial data of the vehicle after the marshalling;
cleaning the initial data of the front vehicles and the initial data of the rear vehicles before the marshalling, and screening out first front vehicle operation data and first rear vehicle operation data;
performing time sequence adjustment on the first front vehicle operation data and the first rear vehicle operation data to acquire second front vehicle operation data and second rear vehicle operation data;
And performing alignment time stamp operation on the second front vehicle operation data and the second rear vehicle operation data to generate the front vehicle operation data and the rear vehicle operation data.
8. A device for testing the synchronization of a virtual group lower landing, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring pre-marshalling vehicle running data and post-marshalling vehicle running data in the process of virtually marshalling the train to enter;
the determining unit is used for determining the arrival synchronization time according to the front vehicle zero speed time corresponding to the grouped front vehicle running data and the rear vehicle zero speed time corresponding to the grouped rear vehicle running data;
the output unit is used for outputting a test result of the arrival synchronism under the virtual grouping according to the arrival synchronous duration;
the zero speed moment is generated after the train speed is smaller than the preset speed within the first preset time.
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 method for testing the synchronization of virtual marshalling underset as defined in any one 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 method of testing for virtual marshalling drop-in synchronicity of any of claims 1-7.
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| CN118400711A (en) * | 2024-06-28 | 2024-07-26 | 北京北九方轨道交通科技有限公司 | Front and rear tractor data synchronization system based on hybrid energy supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118400711A (en) * | 2024-06-28 | 2024-07-26 | 北京北九方轨道交通科技有限公司 | Front and rear tractor data synchronization system based on hybrid energy supply |
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