Patent ID: 7616106

Claim:
A tire information management system used for a mining site, comprising: a sensor configured to measure conditions of a tire attached to each of a plurality of vehicles for transporting mineral resources; a tire information management apparatus configured to receive, by radio, a measurement transmitted by the sensor, and to transmit, to one of the vehicles that the measurement comes from, deterioration restraint information for restraining progress of deterioration of the tire, in a case where the received measurement is not within a predetermined allowable range; and a calculate means that calculates in-use pressure IP1 based on a temperature measurement TI, a pressure measurement PI, and an average temperature TA at the mining site for a current month; wherein the allowable range is determined based on the in-use pressure IP1, wherein the allowable range is determined by a comparison between the in-use tire pressure IP1 and a target internal tire pressure IP2, and wherein the allowable range for a tire containing liquid for cooling the tire is determined by the following equations: IP 1=( IP −(10 −7 ×TI 4 +5×10 −6 ×TI 3 +10 −4 ×TI 2 +11×10 −3 ×TI+w ))×(273 +TA )/(273 +TI )+10 −7 ×TA 4 +5×10 −6 ×TA 3 +10 −4 ×TA 2 +11×10 −3 ×TA+w; (1) IP 2 =IPA +10 −7 ×TA 4 +5×10 −6 TA 3 +10 −4 ×TA 2 +11×10 −3 +w; (2) and −0.8147 <w <1.1853: (3) wherein IPA is a recommended internal pressure of the tire, IP2 is a target internal pressure, and w is a variable.