基于Linux与ARM920的弹丸测速系统的设计与实现

Velocity Measuring System for Flying Projectiles Based on ARM920 and Linux

弹丸速度测量及其数据采集对靶场实验非常重要。对弹丸速度进行可靠的采集和分析、处理是武器设计的基础。普通光电靶工作时,火光或者环境光会影响光电靶产生误触发信号或者不能捕捉弹丸过靶信号,影响测量准确度和灵敏度。设计了一种基于ARM920T与Linux的嵌入式实时数据采集系统。实现了较高速率的采样和实时采集性能,这个系统的最大特点是大样本数据连续不丢点存储。

This paper designs a kind of embedded real-time data acquisition system base on ARM920 and Linux.This system has the characteristic that implements large block storage without losing data.The test has indicated the system ca-pable of high data acquisition speed and real-time data acquisition.