中文摘要：

实现了一种基于无线传感器网络的交通信息采集系统，采用磁阻传感器，通过测量地磁的变化来检测车辆信息，用无线传感器网络传输数据，该系统不需要大规模挖开路面铺设车辆检测器，具有安装简易，维修方便等优点。同时采用B／S结构实现了交通信息的管理，用户可以在远程终端利用浏览器在线监测，实时分析交通信息数据，并进行网络监控和维护。

英文摘要：

A traffic information collection system based on wireless sensor network is realized, which uses magnetoresistive sensors, detects vehicle information through the geomagnetic variation, and transmits the data by wireless sensor network. This method does not need to dig roads extensively, it is easy to be installed and maintained. At the same time, the traffic information management is realized by using B/S structure, the users can monitor and analyze the traffic information and the wireless sensor network remotely with the browser.