TRANSMISSION METHOD POSSESSED BY TIRE MONITORING SENSOR, TIRE MONITORING SENSOR, AND PROGRAM

PROBLEM TO BE SOLVED: To provide a transmission method possessed by a tire monitoring sensor which reduces the power consumption of a power supply battery, and accurately calculates timing for transmitting tire information.SOLUTION: The transmission method possessed by the tire monitoring sensor including an accelerator sensor for sensing the acceleration of a tire, a pressure sensor for sensing the air pressure of the tire, and a transmitter for transmitting tire information of the tire includes steps of: calculating a time period required for the half rotation of the tire after detecting that the rotation of the tire is started; measuring the acceleration in time series with time intervals obtained by m-dividing the time period; calculating a difference obtained by subtracting the acceleration which is measured prior to a half cycle after the acceleration; and calculating timing for transmitting the tire information by the transmitter from a change of the difference in time sequence.