| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire air pressure detecting device automatically reregistering ID, even if using a G sensor having low accuracy of an output value. SOLUTION: The uniaxial direction detecting type G sensor 20 is arranged to detect centrifugal force and gravity by rotation of wheels on each of transmitters 2 mounted on each of the wheels. Periodic information is acquired from AC components generated by detecting gravitational acceleration extracted from output signals of the G sensors 20 in a control part 23a of each of the transmitters 2. The periodic information is transmitted from each of the transmitters 2 to a receiver 3. The periods of the AC components generated by gravity of the output signals of the G sensors 20 transmitted from each of the transmitters 2 are compared. According to the comparison result and steering angle information, the wheel (left or right wheel) mounted with each of the transmitters 2 is specified. COPYRIGHT: (C)2006,JPO&NCIPI
|
