| 摘要 |
<p>A tire air pressure monitoring device has a transmission unit (5) provided on the tire side, detecting tire air pressure, and transmitting information on the tire air pressure and also has a reception unit (6) provided on the vehicle body side and receiving the information on the tire air pressure. A tire air pressure change determination section (66) of the reception unit (6) determines whether a difference between a tire air pressure obtained in the preceding measurement and a tire air pressure obtained in measurement of this time is greater than or equal to a preset change amount. If the difference is greater than or equal to the preset change amount, the tire air pressure monitoring device issues an alarm even if the tire air pressure is higher than a preset air pressure.</p> |
