With the development of the automobile industry and the expansion of the road traffic network, the safety problems caused thereby are also increasingly serious in people’s lives, and the traffic accidents caused thereby are increasing. Because of the high proportion of tire pressure, people pay more attention to the tire pressure during driving. Vehicle tire pressure monitoring technology is an effective way to prevent and reduce traffic accidents caused by tires.
The tire pressure system designed in this topic uses the pressure sensor installed in each tire to directly measure the tire pressure, and transmits it to the monitor installed on the bridge through wireless modulation. The monitor displays the pressure of each tire at any time. The driver can intuitively understand the pressure of each tire. When the tire pressure is too low, too high, or there is leakage, the system will automatically alarm.
This paper describes the current research and development of tire pressure monitoring system at home and abroad; The classification of current tire pressure monitoring systems is introduced, and the advantages and disadvantages of different tire pressure monitoring systems are compared; By analyzing the functional requirements of the tire pressure monitoring system, the requirements for the working environment and system technology of the tire pressure monitoring system are described, and a design scheme of the tire pressure monitoring system is designed; This paper introduces the performance of several components, compares their advantages and disadvantages, and designs a component selection scheme of tire pressure monitoring system based on single-chip microcomputer; According to the design scheme, the hardware design of the sampling end and the receiving end of the tire pressure monitoring system is completed.
Key words:SCM; Tires; Pressure monitoring; Sensor