Design and Implementation of Intelligent Vehicle-borne Safety Pre-warning System*

In order to strengthen the safety of long-distance transportation and solve the problem of failing to timely warn or get rescue when the automobile encounters danger or there is an unexpected situation, a set of intelligent vehicle-borne safety pre-warning systems based on GPRS interface server is designed. The system consists of two parts: the on-site detection terminal (vehicle terminal) and the safety management terminal (remote terminal). The vehicle terminal focuses on detecting the temperature and humidity inside the vehicle, the vehicle body angle, the driver’s heart rate and the vehicle positioning data. The detection data are sent to the server through the GPRS interface using the MQTT protocol. Then the information is forwarded to the remote terminal by the server. The remote terminal based on Linux system obtains the information from the server, displays the vehicle location map and other vehicle information on the human-machine interface after data decoding. The system implements alarm according to the set threshold so that the safety management terminal can grasp the vehicle operation status in time, and take timely rescue measures in case of an accident. This provides guarantee for the safe driving of the vehicle.