CN117294622A - Method, device, equipment and medium for testing information transmission delay under virtual grouping - Google Patents
Method, device, equipment and medium for testing information transmission delay under virtual grouping Download PDFInfo
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Abstract
The invention provides a method, a device, equipment and a medium for testing information transmission delay under virtual grouping, which relate to the technical field of rail transit and comprise the following steps: acquiring transmission data of a front train of a virtual marshalling train and transmission data of a rear train of the virtual marshalling train in the running process; for each piece of information, acquiring an information sending period number and an information receiving period number corresponding to the information from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the information according to the information sending period number and the information receiving period number; and outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of information. The invention has high accuracy, real-time performance and reliability, can monitor and test information transmission delay in real time, accurately test information transmission delay between the front vehicle and the rear vehicle of the marshalling, and verify whether the information transmission delay meets the design requirement under virtual marshalling, thereby improving the safety and the operation efficiency of the marshalling train.
Description
Technical Field
The present invention relates to the field of rail transit technologies, and in particular, to a method, an apparatus, a device, and a medium for testing information transmission delay under virtual grouping.
Background
In the patent application with publication number CN 115946736A, a technical scheme for determining the allowable speed of a rear vehicle based on the vehicle-to-vehicle communication delay after the power is assembled is described, and the vehicle-to-vehicle communication delay time is predicted according to a kalman gain model.
However, the communication delay prediction method is complex, and if the information transmission delay under the whole stage of the virtual marshalling train needs to be predicted, the calculation amount is huge, and the method cannot be suitable for the test requirement of the information transmission delay under the virtual marshalling.
Disclosure of Invention
The invention provides a method, a device, equipment and a medium for testing information transmission delay under virtual grouping, which are used for solving the technical defect that the traditional method for testing the information transmission delay under virtual grouping is complex.
In a first aspect, the present invention provides a method for testing information transmission delay under virtual grouping, including:
acquiring transmission data of a front train of a virtual marshalling train and transmission data of a rear train of the virtual marshalling train in the running process;
For each piece of information, acquiring an information sending period number and an information receiving period number corresponding to the information from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the information according to the information sending period number and the information receiving period number;
and outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of information.
According to the method for testing the information transmission delay under the virtual marshalling, before the transmission data of the front marshalling vehicle and the transmission data of the rear marshalling vehicle of the virtual marshalling train in the running process are obtained, the method comprises the following steps:
acquiring pre-marshalling train operation data and post-marshalling train operation data of the virtual marshalling train in the operation process;
synchronizing the time stamps of the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data, and generating an extraction instruction, wherein the extraction instruction is used for extracting pre-marshalling vehicle transmission data and post-marshalling vehicle transmission data from the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data after the synchronization time stamps;
the running data of the front vehicle comprises information sending cycle numbers or information receiving cycle numbers of different information in the front vehicle;
The grouped vehicle running data comprises information sending cycle numbers or information receiving cycle numbers of different information in the grouped vehicles.
According to the method for testing the information transmission delay under the virtual marshalling, which is provided by the invention, before the running data of the virtual marshalling train before the marshalling and the running data of the virtual marshalling train after the marshalling are obtained, the method further comprises the following steps:
establishing a virtual marshalling train associated with the pre-marshalling train and the post-marshalling train;
in the process of carrying out preset road crossing operation on the virtual marshalling train, indicating the transmission data of the front marshalling train to transmit data transmission information to the rear marshalling train, or indicating the transmission data of the rear marshalling train to transmit data transmission information to the front marshalling train;
generating a data acquisition instruction after determining that the virtual marshalling train completes the preset road crossing operation;
the data acquisition instruction is used for acquiring pre-marshalling train operation data and post-marshalling train operation data of the virtual marshalling train in the operation process.
According to the method for testing the information transmission delay under the virtual marshalling, which is provided by the invention, the information sending cycle number and the information receiving cycle number corresponding to the information are obtained from the transmission data of the vehicles before marshalling and the transmission data of the vehicles after marshalling, and the method comprises the following steps:
Under the condition that the transmission data of the front vehicle of the group transmits information to the transmission data of the rear vehicle of the group, acquiring an information transmission cycle number corresponding to the information from the transmission data of the front vehicle of the group, and acquiring an information receiving cycle number corresponding to the information from the transmission data of the rear vehicle of the group;
and under the condition that the transmission data of the post-marshalling vehicle transmits information to the transmission data of the pre-marshalling vehicle, acquiring an information transmission cycle number corresponding to the information from the transmission data of the post-marshalling vehicle, and acquiring an information receiving cycle number corresponding to the information from the transmission data of the pre-marshalling vehicle.
According to the method for testing the information transmission delay under the virtual grouping provided by the invention, the method for determining the information transmission delay according to the information sending period number and the information receiving period number comprises the following steps:
determining a period number difference value according to the information sending period number and the information receiving period number;
and determining the transmission delay of the information according to the period number difference value and the preset period duration.
According to the method for testing the information transmission delay under the virtual grouping, which is provided by the invention, the test result of the information transmission delay under the virtual grouping is output according to the corresponding transmission delay of each piece of information, and the method comprises the following steps:
Outputting a test result of the information transmission delay under the virtual grouping to pass under the condition that each transmission delay corresponding to all the information is smaller than the preset transmission delay;
otherwise, outputting the test result of the information transmission delay under the virtual grouping as not passing.
According to the method for testing the information transmission delay under the virtual grouping, which is provided by the invention, after the test result of the information transmission delay under the virtual grouping is output, the method further comprises the following steps:
adjusting the operation parameters of the virtual marshalling train;
and acquiring transmission data of the virtual marshalling train before marshalling and transmission data of the virtual marshalling train after marshalling in the running process again to output a test result of the information transmission delay under the virtual marshalling until the test result of the information transmission delay under the virtual marshalling is output to pass.
In a second aspect, the present invention provides a device for testing information transmission delay under virtual grouping, including:
the acquisition unit is used for acquiring transmission data of a train before the virtual marshalling train and transmission data of a train after the virtual marshalling train in the running process;
the determining unit is used for acquiring an information sending period number and an information receiving period number corresponding to each piece of information from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the information according to the information sending period number and the information receiving period number;
And the output unit is used for outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of 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 method for testing information transmission delay under virtual grouping when the processor executes 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 information transmission delay under a virtual consist as described in any of the above.
The invention provides a method, a device, equipment and a medium for testing information transmission delay under virtual marshalling, which are characterized in that the calculation of signal delay is positioned at the cycle numbers before and after information receiving and transmitting, so that the information transmission delay can be determined according to the information sending cycle number and the information receiving cycle number for each signal transmission, and finally the test result of the information transmission delay under virtual marshalling is output according to the corresponding transmission delay of each information.
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 information transmission delay under virtual grouping according to the present invention;
FIG. 2 is a second flow chart of a method for testing information transmission delay under virtual grouping according to the present invention;
FIG. 3 is a third flow chart of a method for testing information transmission delay under virtual grouping according to the present invention;
FIG. 4 is a schematic flow chart of determining the transmission delay of the information according to the present invention;
FIG. 5 is a flow chart of the test result of the information transmission delay under the output virtual grouping provided by the invention;
FIG. 6 is a graph showing the output of test results provided by the present invention;
fig. 7 is a schematic view of a scenario of a virtual marshalling train provided by the invention in the running process;
FIG. 8 is a flow chart of a method for testing information transmission delay under virtual grouping according to the present invention;
Fig. 9 is a schematic structural diagram of a testing device for information transmission delay under virtual grouping according to the present invention;
fig. 10 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 is one advanced communication and control system based technology to realize cooperative running and marshalling operation between several trains. The virtual marshalling technology has important application value in the urban rail traffic field, can reduce the system construction and operation cost, and improves the operation safety and punctuality of the train. In current urban rail virtual consist technology, the safety and operating efficiency of virtual consist trains is one of the key considerations.
The virtual marshalling train is to group a plurality of train vehicles through a wireless communication technology, so that the train can run tightly and share information. In the running process of the virtual marshalling train, the problem of information transmission delay between the marshalling front train and the marshalling rear train is a key and important technical index. Therefore, the test and verification of the key technical index of information transmission delay between the vehicles before and after the vehicle is formed in the virtual marshalling system becomes a key technical problem in the field. The current research is mainly focused on the aspects of grouping strategy, cooperative operation, speed control and the like, and the prior art has some defects and problems in the aspect of testing the information transmission delay of the virtual marshalling train. For example, the lack of an accurate and fast method and test device for verifying information transmission delay cannot evaluate the real-time performance of communication between a pre-marshalling vehicle and a post-marshalling vehicle in a virtual marshalling system in real time, which results in the lack of an accurate test and verification means for information transmission delay between a pre-marshalling vehicle and a post-marshalling vehicle in a virtual marshalling system, so that the safety performance of a marshalling train cannot be comprehensively evaluated.
In order to solve the above technical problems, the present invention provides a method, an apparatus, a device, and a medium for testing information transmission delay under virtual grouping, and fig. 1 is a schematic flow diagram of the method for testing information transmission delay under virtual grouping, where the method for testing information transmission delay under virtual grouping includes:
Step 101, acquiring transmission data of a train before the virtual marshalling train and transmission data of a train after the virtual marshalling train in the running process.
In step 101, the method completes the operation of the virtual marshalling train in a test scene, and records in real time each item of operation data of the virtual marshalling train in the operation process, wherein each item of operation data comprises transmission data of a front marshalling train and transmission data of a rear marshalling train, and because the method can transmit information to the rear marshalling train through the front marshalling train or the rear marshalling train in the operation process, the operation data before marshalling train comprises an information transmission cycle number corresponding to the information transmitted by the front marshalling train, an information receiving cycle number corresponding to the information received by the front marshalling train, and correspondingly, the operation data after marshalling train comprises an information transmission cycle number corresponding to the information transmitted by the rear marshalling train, and an information receiving cycle number corresponding to the information received by the rear marshalling train.
Optionally, the invention records the information sending cycle number and the information receiving cycle number corresponding to each information by adopting a form of the cycle number corresponding to the information sending or receiving time, for example, 1 second time is divided into 5 cycles, at this time, the duration of each cycle is 200 milliseconds, at this time, only the cycle number of each information when sending and receiving is recorded, and the transmission data of the virtual marshalling train before marshalling and the transmission data of the virtual marshalling train after marshalling can be determined in the running process.
Step 102, for each message, acquiring a message sending period number and a message receiving period number corresponding to the message from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the message according to the message sending period number and the message receiving period number.
In step 102, for each message, the present invention first determines a transmission direction of the message, specifically, whether the pre-marshalling vehicle transmission data is to transmit data to the post-marshalling vehicle transmission data and send the message, or whether the post-marshalling vehicle transmission data is to transmit data to the pre-marshalling vehicle transmission data and send the message, and for different transmission directions, different acquisition modes are adopted, optionally, the acquiring the message sending cycle number and the message receiving cycle number corresponding to the message from the pre-marshalling vehicle transmission data and the post-marshalling vehicle transmission data includes:
under the condition that the transmission data of the front vehicle of the group transmits information to the transmission data of the rear vehicle of the group, acquiring an information transmission cycle number corresponding to the information from the transmission data of the front vehicle of the group, and acquiring an information receiving cycle number corresponding to the information from the transmission data of the rear vehicle of the group;
And under the condition that the transmission data of the post-marshalling vehicle transmits information to the transmission data of the pre-marshalling vehicle, acquiring an information transmission cycle number corresponding to the information from the transmission data of the post-marshalling vehicle, and acquiring an information receiving cycle number corresponding to the information from the transmission data of the pre-marshalling vehicle.
According to the invention, the transmission form of the information transmitted by the data transmitted by the front vehicle to the rear vehicle and the transmission form of the information transmitted by the data transmitted by the rear vehicle to the front vehicle can be comprehensively considered, so that the real-time monitoring of the information transmission delay of the front vehicle and the real-time monitoring of the information transmission delay of the rear vehicle can be realized, the information transmission delay test under the omnibearing virtual marshalling is realized, and the reliable test method and the effective solution are provided for verifying the information transmission delay between the front vehicle and the rear vehicle of the urban rail virtual marshalling train.
And 103, outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of information.
In step 103, the invention compares the transmission delay corresponding to each information with the preset expected value of the transmission delay, so as to obtain the test result corresponding to each information.
The invention provides a method, a device, equipment and a medium for testing information transmission delay under virtual marshalling, which are characterized in that the calculation of signal delay is positioned at the cycle numbers before and after information receiving and transmitting, so that the information transmission delay can be determined according to the information sending cycle number and the information receiving cycle number for each signal transmission, and finally the test result of the information transmission delay under virtual marshalling is output according to the corresponding transmission delay of each information.
Fig. 2 is a second flow chart of a method for testing information transmission delay under virtual marshalling, which includes, before acquiring transmission data of a pre-marshalling train and transmission data of a post-marshalling train of a virtual marshalling train in operation, the method comprising:
step 201, acquiring pre-marshalling train operation data and post-marshalling train operation data of a virtual marshalling train in the operation process.
In step 201, the pre-group vehicle operation data and the post-group vehicle operation data include various data of the pre-group vehicle and the post-group vehicle during operation, such as a train speed, a train acceleration, a train position, a train emergency braking rate, a train temperature and humidity, which are corresponding to different period numbers, specifically include different period numbers of information transmitted or received by the train, specifically, the pre-group vehicle operation data includes an information transmission period number or an information reception period number of different information in the pre-group vehicle, and the post-group vehicle operation data includes an information transmission period number or an information reception period number of different information in the post-group vehicle.
Step 202, synchronizing the time stamps of the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data, and generating an extraction instruction, wherein the extraction instruction is used for extracting the pre-marshalling vehicle transmission data and the post-marshalling vehicle transmission data from the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data after synchronizing the time stamps.
In step 202, the present invention performs data preliminary screening on the collected pre-and post-group vehicle operation data, and divides the pre-and post-group vehicle operation data into pre-group vehicle operation basic data, and performs time stamp synchronization on the pre-and post-group vehicle operation basic data after data preliminary screening, so as to ensure that the data processing of the pre-and post-group vehicles is in the same time reference, and then extracts the pre-and post-group vehicle operation data after the synchronization time stamp, and extracts the pre-and post-group vehicle transmission data.
According to the invention, the time stamp synchronization operation is carried out on the pre-marshalling vehicle operation basic data and the post-marshalling vehicle operation basic data, so that the time synchronicity of the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data is ensured, and the high accuracy of information transmission delay data collection and analysis between trains is improved.
Fig. 3 is a third flow chart of a method for testing information transmission delay under virtual marshalling, which includes:
step 301, establishing a virtual marshalling train associated with the pre-marshalling train and the post-marshalling train, as shown in fig. 7, fig. 7 is a schematic view of a scene of the virtual marshalling train in the running process, in which the train unit in the invention establishes the virtual marshalling train associated with the pre-marshalling train and the post-marshalling train in the running process from station 3 to station 2, and the train unit in the running process of a single train is converted into the marshalling operation of the virtual marshalling train.
Step 302, in the process of performing a preset crossing operation on the virtual marshalling train, indicating the transmission data of the front marshalling train to transmit data transmission information to the rear marshalling train, or indicating the transmission data of the rear marshalling train to transmit data transmission information to the front marshalling train.
In step 302, in the running process of the station 2 to the station 1 and the station 1 to the station 2, the preset intersection running is realized, a reliable test method and an effective solution are provided for verifying information transmission delay between a pre-marshalling train and a post-marshalling train in urban rail virtual marshalling.
Step 303, after determining that the virtual marshalling train completes the preset intersection operation, generating a data acquisition instruction, where the data acquisition instruction is used to acquire pre-marshalling train operation data and post-marshalling train operation data of the virtual marshalling train in the operation process.
After step 303 is executed, the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data of the virtual marshalling train in the operation process are obtained, the time stamps of the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data are synchronized, and an extraction instruction is generated, and the extraction instruction is used for extracting the pre-marshalling vehicle transmission data and the post-marshalling vehicle transmission data from the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data after the synchronization time stamps, so as to obtain the pre-marshalling vehicle transmission data and the post-marshalling vehicle transmission data of the virtual marshalling train in the operation process.
The invention combines the test scene of the virtual marshalling train in the running process in fig. 7, and can accurately verify whether the information transmission delay test result between the virtual marshalling train marshalling front train and the virtual marshalling rear train meets the design requirement by the implementation application of 'indicating the transmission data of the marshalling front train to transmit data and send information to the marshalling rear train or indicating the transmission data of the marshalling rear train to transmit data and send information', thereby being beneficial to improving the safety and reliability of the running of the urban rail virtual marshalling train and promoting the research and development of the urban rail train virtual marshalling technology. The method can provide reliable technical support for the application of the urban rail train virtual grouping technology and promote the wide application of the urban rail train virtual grouping technology in urban rail transit systems.
Fig. 4 is a schematic flow chart of determining a transmission delay of the information according to the present invention, where the determining the transmission delay of the information according to the information sending cycle number and the information receiving cycle number includes:
and step 401, determining a period number difference value according to the information sending period number and the information receiving period number.
In step 401, if the information sending period number is 1259 and the information receiving period number is 1261, the period number difference is determined to be 2 according to the difference between the information sending period number and the information receiving period number.
Step 402, determining the transmission delay of the information according to the period number difference value and a preset period duration.
In step 402, if the preset period duration is 200ms and the period number difference is 2, it is determined that the transmission delay of the information is 400ms according to the product of the period number difference and the preset period duration.
According to the invention, the information transmission delay data between the virtual marshalling trains is collected and analyzed, and the information transmission delay is determined by utilizing the difference value of the information sending cycle number and the information receiving cycle number, so that the information transmission delay can be monitored and tested in real time, and the method has high accuracy and reliability.
Fig. 5 is a flow chart of a test result of outputting information transmission delay under virtual grouping, where the test result of outputting information transmission delay under virtual grouping according to the transmission delay corresponding to each piece of information includes:
step 501, outputting a test result of the information transmission delay under the virtual grouping to pass under the condition that each transmission delay corresponding to all the information is smaller than a preset transmission delay.
In step 501, the preset transmission delay is 600ms, and only if the transmission delay corresponding to each message is less than 600ms, the test result of the message transmission delay under the virtual grouping is output.
Step 502, if not, the test result of the information transmission delay under the output virtual grouping is failed, fig. 6 is a test result output display diagram provided by the present invention, and as shown in fig. 6, in the display diagrams with period numbers from 15958 to 15980, the test result of the information transmission delay under the virtual grouping with period numbers 15971, 15972 and 15977 is failed, and the rest period numbers are all passed, at this time, the test result of the information transmission delay under the output virtual grouping is failed.
The invention monitors the whole running process of the virtual marshalling train, ensures that the information sent at any time in the whole running process meets the preset requirement, thereby improving the safety and the running efficiency of the marshalling train and providing important technical support and guarantee for the safe operation of the urban rail virtual marshalling system.
Optionally, after the test result of the information transmission delay under the output virtual grouping is not passed, the method further includes:
adjusting the operation parameters of the virtual marshalling train;
and acquiring transmission data of the virtual marshalling train before marshalling and transmission data of the virtual marshalling train after marshalling in the running process again to output a test result of the information transmission delay under the virtual marshalling until the test result of the information transmission delay under the virtual marshalling is output to pass.
After the test result of the information transmission delay under the virtual marshalling is not passed, the invention finds that the information transmission delay measured by the virtual marshalling train in the whole-stage running process of the train has a certain problem and a certain defect, the invention can be further checked by a tester in a curve generating mode, optionally, the invention can also obtain the pre-marshalling train transmission data and the post-marshalling train transmission data of the virtual marshalling train in the running process after the running parameters of the virtual marshalling train are regulated, so as to output the test result of the information transmission delay under the virtual marshalling, if the test result of the information transmission delay under the virtual marshalling is not passed, the running parameters of the virtual marshalling train are regulated again, and if the test result of the information transmission delay under the virtual marshalling is passed, the regulation is stopped.
The invention aims at solving the problem that the test of information transmission delay under virtual marshalling is complex in the prior art, provides a whole-process information transmission delay test method for the virtual marshalling train, can accurately measure and verify information transmission delay indexes of the marshalling train, can output the test result of each test in a visual mode, is convenient for a tester to further analyze and evaluate, can evaluate and improve according to the comparison between the output result and the expected index effect, and can analyze according to the specific value output by the test result if the test result is not passed, the tester can recommend to modify marshalling operation parameters and carry out test verification of the information transmission delay of the virtual marshalling train, and finally helps to realize the optimization of the operation parameters and algorithms of the urban rail virtual marshalling system, and improves the efficiency and performance of the system. The invention has important significance for information transmission delay test verification and algorithm optimization and parameter adjustment in the actual marshalling operation process of the urban rail 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. 8 is a flow chart of a method for testing information transmission delay under virtual marshalling, which is provided by the invention, and has urgent requirements for development of a method and a device for testing information transmission delay of virtual marshalling train and train, and the invention also provides a method and a device for testing information transmission delay of urban rail virtual marshalling train and train, aiming at solving the problem that the current urban rail virtual marshalling technology lacks a method and a tool for testing information transmission delay between a virtual marshalling train and a train after marshalling, and can accurately and quickly verify whether the information transmission delay between the marshalling train and the train after marshalling in a virtual marshalling system meets the design requirement through a design testing device, so as to fill the technical blank of the testing aspect of the urban rail virtual marshalling field.
Optionally, the testing device provided by the invention 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 the operation basic data information of the virtual marshalling train 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 and calculating the data, and the test result output module is used for generating a final test result for further analysis and evaluation.
Optionally, the invention accesses the testing device to the recording board of the virtual marshalling train on-board equipment, ensures that the testing device can normally receive actual operation data sent by the on-board equipment, sets a testing scene and starts the testing scene, indicates that two trains of units complete marshalling establishment, makes marshalling establishment judgment in the process of marshalling establishment, resets the testing scene under the condition of failure of virtual marshalling establishment, and restarts the testing scene.
Under the condition that the virtual marshalling is successfully established, virtual marshalling train marshalling mode operation is carried out according to a preset operation intersection, in the operation process, the data acquisition module can acquire and analyze operation data in the whole process of virtual marshalling front car and virtual marshalling rear car operation in real time, and the data is transmitted to the data analysis module after data preprocessing.
Optionally, the data analysis module performs data screening on the collected virtual marshalling train original data to obtain pre-marshalling train operation basic data and post-marshalling train operation basic data, extracts marshalling information transmission data after synchronizing timestamp period information of the pre-marshalling train operation basic data and the post-marshalling train operation basic data, and transmits the data to the data calculation module after classifying the data.
Optionally, the data calculation module determines the transmission period calculation of the transmission time of the information of the front vehicle before the vehicle is grouped according to the transmission data of the front vehicle before the vehicle is grouped, and determines the post-vehicle after the vehicle is grouped according to the transmission data of the post-vehicle after the vehicle is groupedCalculation of transmission cycle of transmission time of vehicle information, calculation of information transmission delay is realized according to transmission cycle of transmission time of vehicle information before grouping and transmission cycle of transmission time of vehicle information after grouping, specifically, Δt= (T) Post-reception -T Front transmission ) 200, wherein T Post-reception Receiving a period number, T, for the information Front transmission And sending a period number for the information, wherein deltat is the transmission delay of the information.
In the test result output module, delay index comparison is carried out according to the transmission delay of the information acquired in the data calculation module, a test result is automatically output, and when the transmission delay delta t of the information is less than or equal to 400ms, the test result is output to pass; otherwise, the output test result is not passed,
optionally, the invention can print the test result to provide adjustment basis for the adjustment of the operation parameters of the subsequent virtual marshalling; the method can also output the test result in a visual form rapidly, is convenient for the test personnel to further analyze and judge, and the test personnel can carry out test evaluation according to the output result, so as to provide adjustment basis for the adjustment of the operation parameters of the subsequent virtual marshalling, further set the test scene again, and test the information transmission delay under the virtual marshalling again until the test result passes.
Fig. 9 is a schematic structural diagram of a testing device for information transmission delay under virtual consist provided by the present invention, where the testing device for information transmission delay under virtual consist includes an obtaining unit 1, where the obtaining unit is configured to obtain transmission data of a pre-consist vehicle and transmission data of a post-consist vehicle of a virtual consist train in a running process, and the working principle of the obtaining unit 1 may refer to the foregoing step 101 and is not described herein.
The testing device for information transmission delay under virtual grouping further comprises a determining unit 2, wherein the determining unit is configured to obtain, for each piece of information, an information sending period number and an information receiving period number corresponding to the information from the transmission data of the pre-grouping vehicle and the transmission data of the post-grouping vehicle, and determine the transmission delay of the information according to the information sending period number and the information receiving period number, 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 transmission delay of the information under the virtual grouping further comprises an output unit 3, the output unit is configured to output a test result of the transmission delay of the information under the virtual grouping according to the transmission delay corresponding to each piece of information, and the working principle of the output unit 3 may refer to the foregoing step 103 and will not be described herein.
The invention provides a method, a device, equipment and a medium for testing information transmission delay under virtual marshalling, which are characterized in that the calculation of signal delay is positioned at the cycle numbers before and after information receiving and transmitting, so that the information transmission delay can be determined according to the information sending cycle number and the information receiving cycle number for each signal transmission, and finally the test result of the information transmission delay under virtual marshalling is output according to the corresponding transmission delay of each information.
Fig. 10 is a schematic structural diagram of an electronic device provided by the present invention. As shown in fig. 10, the electronic device may include: processor 110, communication interface (Communications Interface) 120, memory 130, and communication bus 140, wherein processor 110, communication interface 120, memory 130 communicate with each other via communication bus 140. Processor 110 may invoke logic instructions in memory 130 to perform a method of testing information transfer latency under a virtual consist, the method comprising: acquiring transmission data of a front train of a virtual marshalling train and transmission data of a rear train of the virtual marshalling train in the running process; for each piece of information, acquiring an information sending period number and an information receiving period number corresponding to the information from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the information according to the information sending period number and the information receiving period number; and outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of information.
In addition, the logic instructions in the memory 130 may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, and when the computer program is executed by a processor, the computer can execute a method for testing information transmission delay under virtual grouping provided by the above methods, where the method includes: acquiring transmission data of a front train of a virtual marshalling train and transmission data of a rear train of the virtual marshalling train in the running process; for each piece of information, acquiring an information sending period number and an information receiving period number corresponding to the information from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the information according to the information sending period number and the information receiving period number; and outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of information.
In yet another aspect, the present invention 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 information transmission delay under virtual consist provided by the methods described above, the method comprising: acquiring transmission data of a front train of a virtual marshalling train and transmission data of a rear train of the virtual marshalling train in the running process; for each piece of information, acquiring an information sending period number and an information receiving period number corresponding to the information from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the information according to the information sending period number and the information receiving period number; and outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of 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. The method for testing the information transmission delay under the virtual grouping is characterized by comprising the following steps of:
acquiring transmission data of a front train of a virtual marshalling train and transmission data of a rear train of the virtual marshalling train in the running process;
for each piece of information, acquiring an information sending period number and an information receiving period number corresponding to the information from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the information according to the information sending period number and the information receiving period number;
and outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of information.
2. The method for testing information transmission delay under virtual consist according to claim 1, comprising, before acquiring pre-consist transmission data and post-consist transmission data of the virtual consist train during operation:
acquiring pre-marshalling train operation data and post-marshalling train operation data of the virtual marshalling train in the operation process;
synchronizing the time stamps of the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data, and generating an extraction instruction, wherein the extraction instruction is used for extracting pre-marshalling vehicle transmission data and post-marshalling vehicle transmission data from the pre-marshalling vehicle operation data and the post-marshalling vehicle operation data after the synchronization time stamps;
The running data of the front vehicle comprises information sending cycle numbers or information receiving cycle numbers of different information in the front vehicle;
the grouped vehicle running data comprises information sending cycle numbers or information receiving cycle numbers of different information in the grouped vehicles.
3. The method for testing information transmission delay under virtual consist according to claim 2, further comprising, before acquiring pre-consist and post-consist operation data of the virtual consist train during operation:
establishing a virtual marshalling train associated with the pre-marshalling train and the post-marshalling train;
in the process of carrying out preset road crossing operation on the virtual marshalling train, indicating the transmission data of the front marshalling train to transmit data transmission information to the rear marshalling train, or indicating the transmission data of the rear marshalling train to transmit data transmission information to the front marshalling train;
generating a data acquisition instruction after determining that the virtual marshalling train completes the preset road crossing operation;
the data acquisition instruction is used for acquiring pre-marshalling train operation data and post-marshalling train operation data of the virtual marshalling train in the operation process.
4. The method for testing the transmission delay of information under virtual grouping according to claim 1, wherein the acquiring the information sending cycle number and the information receiving cycle number corresponding to the information from the transmission data of the vehicles before the grouping and the transmission data of the vehicles after the grouping comprises:
Under the condition that the transmission data of the front vehicle of the group transmits information to the transmission data of the rear vehicle of the group, acquiring an information transmission cycle number corresponding to the information from the transmission data of the front vehicle of the group, and acquiring an information receiving cycle number corresponding to the information from the transmission data of the rear vehicle of the group;
and under the condition that the transmission data of the post-marshalling vehicle transmits information to the transmission data of the pre-marshalling vehicle, acquiring an information transmission cycle number corresponding to the information from the transmission data of the post-marshalling vehicle, and acquiring an information receiving cycle number corresponding to the information from the transmission data of the pre-marshalling vehicle.
5. The method for testing information transmission delay under virtual grouping according to claim 1, wherein determining the information transmission delay according to the information transmission period number and the information reception period number comprises:
determining a period number difference value according to the information sending period number and the information receiving period number;
and determining the transmission delay of the information according to the period number difference value and the preset period duration.
6. The method for testing the transmission delay of information under virtual grouping according to claim 1, wherein outputting the test result of the transmission delay of information under virtual grouping according to the transmission delay corresponding to each piece of information comprises:
Outputting a test result of the information transmission delay under the virtual grouping to pass under the condition that each transmission delay corresponding to all the information is smaller than the preset transmission delay;
otherwise, outputting the test result of the information transmission delay under the virtual grouping as not passing.
7. The method for testing the information transmission delay under a virtual consist of claim 6, wherein after the test result of outputting the information transmission delay under a virtual consist is not passed, the method further comprises:
adjusting the operation parameters of the virtual marshalling train;
and acquiring transmission data of the virtual marshalling train before marshalling and transmission data of the virtual marshalling train after marshalling in the running process again to output a test result of the information transmission delay under the virtual marshalling until the test result of the information transmission delay under the virtual marshalling is output to pass.
8. A device for testing information transmission delay under virtual grouping, comprising:
the acquisition unit is used for acquiring transmission data of a train before the virtual marshalling train and transmission data of a train after the virtual marshalling train in the running process;
the determining unit is used for acquiring an information sending period number and an information receiving period number corresponding to each piece of information from the transmission data of the vehicles before the marshalling and the transmission data of the vehicles after the marshalling, and determining the transmission delay of the information according to the information sending period number and the information receiving period number;
And the output unit is used for outputting a test result of the information transmission delay under the virtual grouping according to the transmission delay corresponding to each piece of 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 method for testing information transmission delay under virtual consist of any one of claims 1-7 when executing the program.
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 information transmission delay under virtual consist of any of claims 1-7.
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| CN202310993650.XA CN117294622A (en) | 2023-08-08 | 2023-08-08 | Method, device, equipment and medium for testing information transmission delay under virtual grouping |
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| CN202310993650.XA CN117294622A (en) | 2023-08-08 | 2023-08-08 | Method, device, equipment and medium for testing information transmission delay under virtual grouping |
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