Aiming at shortcomings of traditional automotive tire pressure monitoring system（ TPMS）

automotive TPMS is designed based on smart phone. This system consists of tire sensors

repeater and smart phone

through radio frequency（ RF） and Bluetooth technology

tire condition can be displayed on smart phone in real time

and parameters like alarm thresholds and sensor IDs can also be set. Experimental results indicate that the maximal measurement error is ± 0. 06 bar

and loss rate is 1. 69 % working on vehicle

it takes 1 min to match the sensors. The system effectively combines TPMS and smart phone

improves display effect of TPMS and enhance interactivity of TPMS

which make it has high quality effect of user experience

has extremely high industrial production value.