Tire Pressure Monitoring System

This thesis is mainly concerned with the system improvement about low-powered and little volume speciality at the base of overseas existing Tire Pressure Monitoring System (TPMS), and developed the new TPMS (only used in vacuum tire) independently. At last, This paper introduced a new measurement method of reducing the vibration of automobile based on digital signal processing. This measure utilizes the acceleration signal detected by Tire Pressure Monitoring System (TPMS), and abstracts the vibrated acceleration signal via Digital Signal Processing technology.Firstly, this paper summarized the development foreground and actuality about auto-electronics, mainly summarized TPMS research significance. This paper introduces low-powered and little volume system development precept, by comparing with some exiting TPMS and considering the working environment of Low-MCU in system, and presents system schematic circuit diagram andprogram flow chart.Secondly, this paper introduces a new measurement means of reducing the vibration of automobile based on digital signal processing. Firstly, this paper presents the research significance by comparing with some exiting measurement methods; Secondly, introduces the theoretic gist and the academic deduction of this means; Finally, presents the simulation results under MATLAB environment.At present, the basic TPMS functions designed by this paper has beendeveloped successfully, and the new measurement method of reducing thevibration of automobile based on digital signal processing has being in research allthe time.