汽车碰撞试验用车载数据采集系统的研制  

Design of Data Acquisition System in Vehicle Collision Test

作　　者：陈亚东[1] 张金换[1] 黄世霖[1] 

机构地区：[1]清华大学汽车安全与节能国家重点实验室,北京100084

出　　处：《公路交通科技》2003年第2期135-139,共5页Journal of Highway and Transportation Research and Development

摘　　要：电测量技术是汽车碰撞试验中的一项关键技术。本文介绍了一种自行研制的在汽车碰撞试验电测量系统中使用的车载数据采集系统的原理、硬件结构与软件设计。该系统采用模块化设计 ,设计了独特的触发模块。数据采集电路以单片机、 12位高速A D芯片和其它芯片构成。系统具有触发准确 ,对多通道信号的采集同步、高速、可靠的特点 ,还实现了大冲击环境可能断电时的数据可靠存储。In the vehicle collision test electronics measurement technology plays a very important role This paper presents the principle,hardware structure and software design of a self?developed data acquisition system used in electronics measurement system in vehicle collision test The system is designed under the concept of modularization A trigger module is specially devised The data acquisition circuit is composed of a single?chip microcomputer,a 12?bit high?speed A/D chip and other chips The data acquistion system has the characteristics of accurate trigger and multi?channel high?speed synchronous reliable acquisition Data storage is implemented reliably in the violent impact circumstance that may cause power failure The system has been proved to be valid by testing

关 键 词：汽车 碰撞试验 车载数据采集系统 电测量系统 模块化设计 多通道信号采集 数据存储 

分 类 号：U467.14[机械工程—车辆工程]