汽车仪表网络管理一致性测试系统设计

Design of Conformance Test System for Automobile Instrument Network Management

针对现有汽车仪表网络管理一致性测试,存在测试服务费用昂贵,测试灵活度不高的问题,提出一种基于TSCN脚本驱动的网络管理协议一致性自动测试方法。首先提出一种支持结构化编程的测试用例脚本描述语言TSCN,实现对两种主流网络管理协议OSEK/VDX和AUTOSAR的一致性测试用例统一描述;其次设计了一个基于TSCN脚本驱动的汽车仪表网络管理一致性自动测试系统;最后针对分别载有上述网络协议的不同车型汽车仪表,采用本系统进行一致性测试。实验结果表明:该系统能有效实现汽车仪表网络管理协议在物理层、网络层和通信层上的一致性自动测试,而且平均测试耗时明显减少,测试效率提高。

Existing automotive instrument network management conformance test mainly depends on foreign commercial devices and software.According to the problems of high cost and low flexibility in test service,a conformance automatic test method based on TSCN script for network management protocol was proposed.Firstly,a test case scripting language TSCN supporting structured programming was proposed to achieve a uniform test cases description for the two mainstream network management protocols,OSEK/VDX and AUTOSAR.Secondly,a TSCN script-driven auto instrument network management conformance automatic test system was designed.Finally,the system was used to test the consistency of different vehicles with the above network protocol.The experimental results show that the system can effectively achieve the automatic consistency test of the instrument network management protocol at the physical layer,network layer and communication layer,and the average test time is significantly reduced,and the test efficiency is improved.