Tire pressure monitoring system (TPMS) is an active car safety system that uses wireless sensors to collect car tire pressure, temperature and other data, transmit it to the car's cab through radio frequency signals, and displays the relevant data in digital form. It can provide drivers with pre-pressure, temperature abnormalities, etc. Police message.

    A car needs at least 4 MEMS pressure sensors for car tire pressure monitoring, which is the most widely used field in automotive electronic systems.