Research on Wireless Sensor Network Applied in Highway Transportation Monitoring System

摘要

Recent advances in digital circuit, radio communication, and MEMS technologies, have made wireless sensor network (WSN) improve greatly. WSN can be applicated in many areas such as military areas, habitat monitoring, traffic monitoring, and so on. The other way, transportation is looked as one of the most important issues for the development of social economy, especially highway. In order to improve the management and efficiency of highway, and to prevent effectively and resolve traffic accidents in time, a highway transportation monitoring system based on WSN is put forward in this paper. This system adequately makes use of WSN's distribution, self-organizing and extensibility. The architecture and mechanism of the system are described. And some functions of the system have been implemented. The speed measurement of high-speed moving targets with multiple sensors has been accomplished, and the performance and limitation have been analyzed.