Wireless positioning system for investigation of road traffic accidents

Abstract

In traffic accident investigation, measurement and location of accident factors using traditional methods is a time-consuming work. Investigators must work on each measurement point to collect data, and then mark the position of the measured point in the scene graph. Due to the low efficiency of manual operation, the investigation time is long, thereby increasing the traffic recovery pressure. In order to solve the above-mentioned problem, this paper describes a wireless location system to graphically record the scene of road traffic accident. This system combines the ultrasonic technology and ZIGBEE wireless communication network, which firstly installs distance measuring equipments at all the measurement points including two reference points and other ones, and then completes the measurement work in one time. Use of ultrasonic technique guarantees the accuracy of distance measurement while ZIGBEE wireless communication network facilitates remote control device. The new system saves a lot of time spent on moving back and forth of various equipments and manual operation, thus improving the investigation efficiency.