Compact tire pressure monitoring system via innovative mechanical pressure switch design

摘要

A tire pressure-monitoring (TPM) system includes a TPM device directly mounted onto an air-pumping inlet on a tire. The TPM device further includes a mechanical triggering mechanism engaged to an air pressure through the air-pumping inlet pushing from an air filled in the tire. The triggering mechanism is triggered by a low tire pressure to turn on a micro-controller unit of the TPS device to send a radio frequency (RF) signal for warning a low tire-pressure of the tire. The tire pressure monitoring (TPS) system further includes a signal receiving system near a vehicle driver for receiving and processing the RF signal.