Algorithm and system for traffic safety on the intersection

The demand for the safety is increased in the telematics area. The main reason for the car accident is driver´s delay in recognition and error in operation and judgment about danger. About 45 % car crash comes from delayed recognition and 28 % comes from error in operation and judgment. In order to solve the safety problem, we propose the wireless sensor system which can reduce the danger by warning invisible and unexpected risk in advance. In the consideration of environment which our system is deployed, our wireless sensor system for safety is composed of wireless sensor node sensing car existence with magnetic sensors, wireless relay node relaying the sensed data to the main server, and base station which is main server gathering all sensed data from sensor node and generating alarm messages. It is expected that our system successfully reduce car accident with wireless sensor network technology.