中文摘要：

智能交通指挥系统的实施可以有效解决道路拥堵、运输效率低下等问题，减少交通事故的发生。针对坡道转弯这一特定的交通难点问题，研究和实现了基于无线传感器网络（WSN）的坡道转弯提醒系统。其中感知子系统采用WSN实时感知数据，具有便于布置、实时感知、现场处理的优点；交通提醒子系统采用基于有限状态机的状态图来辅助完成智能控制电路设计，进一步降低硬件造价，提高了系统反应速度。仿真表明，该系统能准确地获取车辆违规行驶信息，向司机或行人发送提醒指令，使司机有足够的反应时间，降低了车辆挂擦和碰撞事故，减少交通拥堵，有效地改善了坡道转弯处的交通状况。

英文摘要：

The implementation of the intelligent traffic directing system can solve the problems of traffic jam and low transportation effectiveness, it reduces the traffic accidents. Aiming at the specific traffic difficulty at the ramp corner, this paper researched and implemented a ramp corner reminding system based on wireless sensor networks. The sense subsystem adopted WSN, sensed the data in real time, with the advantage of easy deployment, real-time sensing and in-site processing. And re- minding subsystem consisted of the design of control circuit. In order to save hardware, designed an intelligent control circuit using the state diagram based on the finite state automaton, which brought down the cost of hardware further. Experiment results indicate the system can accurately get the information of illegal traffics, and send warning information to the drivers in time. The system reduces scratching and collision accident greatly, alleviates the traffic jam and improves the traffic of the ramp comer effectively.