高速列车动模型车载数据采集系统  

Data Acquisition System on Moving Model of HST

作　　者：刘建湘[1] 

机构地区：[1]中南大学机电工程学院,湖南长沙410075

出　　处：《计算机测量与控制》2005年第1期89-91,共3页Computer Measurement &Control

摘　　要：利用高速列车动模型试验研究高速列车实车运行时空气动力学问题是一种可行的方法。介绍一种车载数据采集系统,利用80C196KC单片机的外部事务服务器PTS功能,在动模型车外表面上多个测量点并行采集动模型车表面在运行时的空气压力波数据,实现高速、大容量数据采集和存储,同时利用光电传感器和80C196KC单片机的HIS事件捕捉功能实现动模型车的全程运行速度测量,并解决了数据采集触发启动问题。测量结果与实际情况相符,可建立动模型车各种运行情况时的路程、速度和其表面空气压力间关系,在实际应用中是可行的。It's a feasible method that moving model experiments of the high speed train are used to investigate aerodynamics question produced by full size trains running. A data acquisition system on the moving model is introduced. Air pressure pulse data at multi-places on the surface of the moving model can be obtained by using the peripheral transaction server of a 80C196KC singlechip computer on the system. Photoelectric sensors and the high speed input unit of the 80C196KC singlechip computer are utilized to measure the traveling velocity of the moving model at the same time. The relation to the position, the moving velocity and the air pressure on the surface of the moving model can be resulted from the measurement data which are believable. Data acquisition and store with high speed and large-capacity is implemented on a moving model.

关 键 词：高速列车 车载数据采集系统 单片机 空气动力学 动模型 

分 类 号：U292.914[交通运输工程—交通运输规划与管理] TP274.2[交通运输工程—道路与铁道工程]