Internet of vehicles testing system and method for consistency of V2X data communication protocol

Abstract

The invention relates to the technical field of networking testing, in particular to an Internet of Vehicles testing system and method for V2X data communication protocol consistency, and the system comprises a data generation subsystem, a protocol analysis subsystem, a consistency verification subsystem, a visualization subsystem, a time delay calculation module, and an analysis and report generation module. The data generation subsystem is configured to generate test data according to a V2X communication protocol; the protocol analysis subsystem is configured to analyze and analyze V2X communication protocol data; the consistency verification subsystem is configured to detect and verify the consistency of data and a protocol standard; the visualization subsystem is configured to visualize, store and generate a consistency test report; according to the invention, the comprehensive instrument is connected with the tested sample piece through the air interface, so that the test can be carried out without a darkroom, the test operation can be carried out in an outdoor environment, and the test can be completed, and compared with the existing test system, the test system has the advantages of simple steps, high efficiency and convenience.

Description

Technical Field

[0001] The present invention relates to the field of networking testing technology, and in particular to a vehicle networking testing system and method for V2X data communication protocol consistency. Background Art

[0002] At present, most of the vehicle networking test systems for V2X data communication protocol consistency use a radio frequency connection method, and the vehicle under test needs to enter a darkroom for testing, which is cumbersome and inefficient. To this end, a vehicle networking test system and method for V2X data communication protocol consistency are proposed. Summary of the invention

[0003] To achieve the above object, the present invention provides the following technical solutions: a vehicle networking test system for V2X data communication protocol consistency, comprising a data generation subsystem, a protocol analysis subsystem, a consistency check subsystem, and a visualization subsystem delay calculation module and an analysis and report generation module;

[0004] The data generation subsystem is configured to generate test data according to the V2X communication protocol;

[0005] The protocol analysis subsystem is configured to parse and analyze V2X communication protocol data;

[0006] The consistency check subsystem is configured to detect and check the consistency of data with the protocol standard;

[0007] The visualization subsystem is configured to visualize, save and generate a consistency test report.

[0008] Preferably, the data generation subsystem includes a test data generation module and a high-precision clock module for simulating different Internet of Vehicles scenarios;

[0009] The high-precision clock module is used to provide an accurate time reference to ensure the clock synchronization of each component of the system;

[0010] Based on the data generation subsystem, generate a test data packet that complies with the V2X communication protocol, and embed a transmitting end application layer timestamp (T1) in each data packet;

[0011] The hardware of the data generation subsystem includes an air interface transmission module and a host computer module. The host computer module is equipped with a protocol consistency subsystem to perform script generation and data verification for protocol consistency testing;

[0012] The air interface transmission module is used to transmit the data packet to the target receiving device through the wireless communication link (air interface).

[0013] Preferably, the consistency check subsystem includes a protocol stack processing module and a protocol consistency check module;

[0014] The protocol analysis module performs analysis based on a preset protocol stack layer and performs a protocol consistency check module based on the host computer software;

[0015] The protocol stack processing module includes multiple protocol stack layers, namely, transport layer, network layer, data link layer and physical layer. When a data packet passes through each layer, the module marks a corresponding timestamp (T2, T3, T4) to record the processing time of the data packet at each layer; when the target device receives the data packet, it marks the receiving timestamp (T5, T6, T7, T8) at the physical layer, data link layer, network layer, transport layer and application layer in sequence:

[0016] Preferably, the delay calculation module is used to calculate the end-to-end delay of the air interface application layer based on the timestamps of the sending end and the receiving end, wherein the delay is equal to the difference between the application layer timestamp (T8) of the receiving end and the application layer timestamp (T1) of the sending end;

[0017] The analysis and report generation module is used to comprehensively analyze the delay data of each layer of the protocol stack and generate a detailed delay analysis report.

[0018] S1: Generate test data according to V2X protocol standards;

[0019] S2: parse the communication data and extract the protocol parameters;

[0020] S3: consistency of test protocol parameters with standards;

[0021] S4: Generate and present test reports.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention connects the integrated instrument and the sample to be tested by air interface, so there is no need to conduct the test in a darkroom. The test operation can be carried out in an outdoor environment and the test can be completed. Compared with the existing test system, the test system has simple steps and is more efficient and convenient. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] A vehicle networking test system for V2X data communication protocol consistency, including a data generation subsystem, a protocol analysis subsystem, a consistency check subsystem, a visualization subsystem, a delay calculation module, and an analysis and report generation module;

[0026] The data generation subsystem is configured to generate test data according to the V2X communication protocol;

[0027] The protocol analysis subsystem is configured to parse and analyze V2X communication protocol data;

[0028] The consistency check subsystem is configured to detect and check the consistency of data with the protocol standard;

[0029] The visualization subsystem is configured to visualize, save and generate a consistency test report.

[0030] In this embodiment, the data generation subsystem includes a test data generation module and a high-precision clock module for simulating different vehicle networking scenarios; the high-precision clock module is used to provide an accurate time reference to ensure the clock synchronization of various components of the system; based on the data generation subsystem, a test data packet for generating a V2X communication protocol is generated, and a sender application layer timestamp (T1) is embedded in each data packet; the hardware of the data generation subsystem includes an air interface transmission module and a host computer module. The host computer module is equipped with a protocol consistency subsystem to perform script generation and data verification for protocol consistency testing; the air interface transmission module is used to transmit the data packet to the target receiving device through a wireless communication link (air interface).

[0031] In this embodiment, the consistency check subsystem includes a protocol stack processing module and a protocol consistency check module; the protocol analysis module performs analysis based on a preset protocol stack layer and performs a protocol consistency check module based on the upper computer software; the protocol stack processing module includes multiple protocol stack layers, namely, the transport layer, the network layer, the data link layer and the physical layer. When the data packet passes through each layer, the module marks the corresponding timestamp (T2, T3, T4) to record the processing time of the data packet at each layer; when the target device receives the data packet, it marks the receiving timestamp (T5, T6, T7, T8) in the physical layer, data link layer, network layer, transport layer and application layer in sequence.

[0032] In this embodiment, the delay calculation module is used to calculate the end-to-end delay of the air interface application layer based on the timestamps of the sending end and the receiving end, where the delay is equal to the difference between the receiving end application layer timestamp (T8) and the sending end application layer timestamp (T1); the analysis and report generation module is used to comprehensively analyze the delay data of each layer of the protocol stack and generate a detailed delay analysis report.

[0033] The V2X data communication protocol conformance test system has the following high-precision air interface delay measurement functions:

[0034] High-precision clock module provides accurate time reference to ensure clock synchronization of all system components;

[0035] Data packet generation, based on the data generation subsystem, generates test data packets that comply with the V2X communication protocol and embeds the sender application layer timestamp (T1) in each data packet;

[0036] The protocol stack processing module includes multiple protocol stack layers, namely, the transport layer, the network layer, the data link layer and the physical layer. When the data packet passes through each layer, the module marks the corresponding timestamp (T2, T3, T4) to record the processing time of the data packet at each layer; when the target device receives the data packet, it marks the receiving timestamp (T5, T6, T7, T8) at the physical layer, the data link layer, the network layer, the transport layer and the application layer in sequence;

[0037] The air interface transmission module transmits the data packet to the target receiving device through the wireless communication link (air interface);

[0038] A delay calculation module calculates the end-to-end delay of the air interface application layer based on the timestamps of the sending end and the receiving end, wherein the delay is equal to the difference between the application layer timestamp (T8) of the receiving end and the application layer timestamp (T1) of the sending end;

[0039] The analysis and report generation module comprehensively analyzes the latency data of each layer of the protocol stack and generates a detailed latency analysis report.

[0040] The present invention is achieved by the following steps:

[0041] S1: Generate test data according to V2X protocol standards;

[0042] S2: parse the communication data and extract the protocol parameters;

[0043] S3: consistency of test protocol parameters with standards;

[0044] S4: Generate and present test reports.

[0045] The present invention also includes a method for measuring end-to-end delay of an air interface application layer, the method comprising the following steps:

[0046] S1: Generate a V2X communication protocol data packet including an application layer timestamp (T1) through a data packet generation module;

[0047] S2: allowing the data packet to pass through the protocol stack layers of the sending end in sequence, marking the processing timestamps (T2, T3, T4) of each layer;

[0048] S3: Transmit the data packet to the target receiving device through the air interface;

[0049] S4: Make the target receiving device mark the receiving timestamp (T5, T6, T7, T8) at the physical layer, data link layer, network layer, transport layer and application layer in turn; calculate the end-to-end delay of the air interface application layer, which is equal to the difference between the receiving end application layer timestamp (T8) and the sending end application layer timestamp (T1).

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle networking test system for V2X data communication protocol consistency, characterized by: It includes data generation subsystem, protocol analysis subsystem, consistency check subsystem, visualization subsystem, delay calculation module and analysis and report generation module; The data generation subsystem is configured to generate test data according to the V2X communication protocol; The protocol analysis subsystem is configured to parse and analyze V2X communication protocol data; The consistency check subsystem is configured to detect and check the consistency of data with the protocol standard; The visualization subsystem is configured to visualize, save and generate a consistency test report.

2. A vehicle networking test system for V2X data communication protocol consistency according to claim 1, characterized in that: The data generation subsystem includes a test data generation module and a high-precision clock module for simulating different Internet of Vehicles scenarios; The high-precision clock module is used to provide an accurate time reference to ensure the clock synchronization of each component of the system; Based on the data generation subsystem, generate a test data packet that complies with the V2X communication protocol, and embed a transmitting end application layer timestamp (T1) in each data packet; The hardware of the data generation subsystem includes an air interface transmission module and a host computer module. The host computer module is equipped with a protocol consistency subsystem to perform script generation and data verification for protocol consistency testing; The air interface transmission module is used to transmit the data packet to the target receiving device through the wireless communication link (air interface).

3. The vehicle networking test system for V2X data communication protocol consistency according to claim 1, characterized in that: The consistency check subsystem includes a protocol stack processing module and a protocol consistency check module; The protocol analysis module performs analysis based on a preset protocol stack layer and performs a protocol consistency check module based on the host computer software; The protocol stack processing module includes multiple protocol stack layers, namely, transport layer, network layer, data link layer and physical layer. When a data packet passes through each layer, the module marks a corresponding timestamp (T2, T3, T4) to record the processing time of the data packet at each layer; When the target device receives a data packet, it marks the receiving timestamp (T5, T6, T7, T8) at the physical layer, data link layer, network layer, transport layer and application layer in sequence.

4. The vehicle networking test system for V2X data communication protocol consistency according to claim 1, characterized in that: The delay calculation module is used to calculate the end-to-end delay of the air interface application layer based on the timestamps of the sending end and the receiving end, wherein the delay is equal to the difference between the receiving end application layer timestamp (T8) and the sending end application layer timestamp (T1); The analysis and report generation module is used to comprehensively analyze the delay data of each layer of the protocol stack and generate a detailed delay analysis report.

5. A vehicle networking test system test method for V2X data communication protocol consistency, characterized by: S1: Generate test data according to V2X protocol standards; S2: parse the communication data and extract the protocol parameters; S3: consistency of test protocol parameters with standards; S4: Generate and present test reports.