摘要
研究与设计了一种基于感应线圈的道路交通流检测系统,采用32位ARM处理器与CPLD组成检测控制器,对车辆通过线圈时所产生的频率变化进行数据采集,克服了传统的8位单片机处理能力不足检测精度不够等设计缺陷。系统除具有通常的测量交通流量、车速、道路占有率等功能外,还可实时按车型分类统计车流量。
A road traffic flow detection system based on induction coil is designed. The control platform is based on the most advanced 32-bit ARM processor core together with CPLD, so that the traditional design defect such as the treatment capacity deficiency and low measurement accuracy is improved. Besides measuring traffic volume and speed and occupy of road , the system may take count of vehicles according to measure the kind of types.
出处
《公路工程》
2009年第6期30-33,共4页
Highway Engineering
基金
湖南省自然科学基金资助项目(07JJ6123)
关键词
交通流检测
环形线圈
车型
分类
traffic flow detection
loop
vehicle types
classification
