基于LABVIEW 的汽车检测系统的设计

提出了一种基于LABVIEW并符合OBDⅡ的汽车检测系统的设计方法。借助信号发生器VI对系统进行仿真,最终得出该系统的设计方法是有效和可行的。此系统以OBDⅡ为基础,首先对OBDⅡ系统中使用的基于SAE J1979协议中规定的标准检测命令和车载ECU报文发送格式进行分析,其次通过LABVIEW软件先后设计系统主程序VI和能模仿符合OBDⅡ工作模式的信号发生器VI,最后结合虚拟串口工具在微机上进行仿真并得出结果。在介绍OBDⅡ相关内容之后,着重阐述了在LABVIEW开发环境下的软件设计方法和仿真过程。

Design of a Detecting System of Vehicle Based on LABVIEW

A design method of vehicle that based on LABVIEW and corresponded to the rule of OBDII is brought out in this article.By way of simulating the system by dint of signal generator,finally the conclusion that this design method is valid and feasible can be achieved.The basement of this system is OBDII,this article firstly makes an analysis on the commands of OBDII based on the protocol of SAE J1979 and the format of ECU report,then designs the main system VI and the signal generator VI by means of LABVIEW software,lastly do simulation on PC by virtual serial port software and get outcome.After introducing some relating materials about OBDII,the article mainly expounds the method of designing software at the development environment of LABVIEW and the process of simulation.