Abstract: An apparatus and method for estimating a tire life is provided. The apparatus includes a transmitter for storing tire position identification information, measuring and transmitting an internal pressure and temperature together with the tire position identification information; a receiver for detecting and comparing the tire position identification information and the internal pressure and temperature, with tire replacement temperature reference value and pressure reference value, and if any one of the internal pressure and temperature is greater than the tire replacement temperature reference value and pressure reference value, generating a warning signal for informing of tire replacement; and a warning unit for receiving the warning signal and warning a driver.

Abstract: The present invention relates to a reception antenna structure of a tire pressure monitoring system. The reception antenna is implemented using a cable-type antenna connected to a receiver of the tire pressure monitoring system. The cable-type antenna enables a mounting position of the antenna to be freely changed and improves a reception rate for measured data about temperature and pressure of a tire, that is modulated into data in the UHF band and transmitted to the outside of the tire in a wireless manner by a transmitter.