摘要
为了在交通调查中获得道路交通信息,基于电磁感应原理,利用ARM7内核处理器LPC2131设计了交通参数检测系统。在现场实验中,通过检测、采集、数据处理,可以得到车流量、车速和车长等信息,验证了系统设计方案合理可行。该系统具有简单可靠,灵敏度高,性价比高的优势。着重介绍了参数算法,嵌入式系统移植的相关注意事项,系统工作原理及软硬件实现。
To obtain traffic information in the traffic investigation, based on electromagnetic induction principle and LPC2131 of ARM7 core processor, the traffic parameters detection system is designed. Vehicle flow, vehicle speed and vehicle length can be obtained by detecting, collecting and data processing in field experiment, the experiment proves the system is feasible, simple and reliable, it possesses merits of high sensitivity and high performance - cost ratio. It especially introduces parameter algorithms, points of attention in transplantation of embedded systems, system working principle and soft- hardware realization.
出处
《现代电子技术》
2007年第23期134-135,138,共3页
Modern Electronics Technique
基金
湖南省教育厅资助科研项目(03C072)
关键词
道路交通
ARM
嵌入式系统移植
检测系统
road traffic
ARM
embedded system transplantation
detection system
