Design of TPMS Based on CAN and SP30

The traditional TPMS has the disadvantages of not realizing the tire auto-location,RF data-collision in the same frequency,the more dissipative power in the transmitter.A TPMS design based on CAN BUS and SP30 sensor was proposed.Using TDMA technologies,the controller awaked the corresponding the transmitters in the different time sections with LF wakers.The awaked transmitter collected sensor data,such as pressure and temperature,and then transmitted them to the controller by RF communication.With embedded ARM9-core hardware and Linux OS,the controller sets up Web server and can be used as the multifunctional controller in the car.