| 摘要 |
The invention relates to a system for monitoring at least one parameter of a vehicle tire (201), comprising a sensor unit (401) arranged inside the tire, and a receiver unit (407) arranged outside the tire, said sensor unit including a sensor (403) for measuring at least one tire parameter, a finite power source (404), and transmission means (406) for transmitting a signal representative of a measured value of said tire parameter to the receiver unit. The sensor unit is arranged inside a protective carrier (100), which carrier is arranged freely movable inside said tire. Preferably, said sensor unit includes a motion sensor (405), such as an accelerometer, which controls parameter sensing and/or transmission dependent on a sensed level of motion. Preferably, activation of sensing and/or transmission is restricted to occasions when an acceleration sensed by the accelerometer exceeds a preset level. |
