Design of intelligent tire safety pre-alarm system based on ARM9

The tire burst used to cause fatal traffic accidents, threatening the safety of drivers and property, in cognizance of this problem, it comes up with an intelligent tire safety pre-alarm system. The hardware components and software design means of tire pressure monitoring system are introduced. The whole system is composed of a host module and four wireless sensor micro-extensions. The four wireless sensor micro-extensions are installed in tires, monitoring the pressure and temperature of tires in real time and sending them to center monitoring host through wireless module MC68HC908RF2. The monitoring host adopts MC33594 for receiving data, and uses CPU S3C2440 for processing data and displaying. Once the tire comes out abnormal conditions, for instance, the pressure is high or low, or leaking and excess temperature, the monitoring host give out audible and visible signals to driver for warning of pulling up and taking relevant measure to avoid serious accidents.