| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device for wheels which detects an actual status of use and stores it as history. <P>SOLUTION: An IC tag 9 with capable of non-contact communication is attached to the bearing device for wheels. The IC tag 9 is a sensor-mounted IC tag where the IC tag is integrated with or electrically connected to a sensor detecting a detection object of the bearing device for wheels, wherein a detection signal of the sensor is inputted by an input system different from a path of the non-contact communication. The sensor is, for example, a coil and a magnet 10 which passes near the sensor-mounted IC tag 9 by relative rotation may be provided. The sensor of the sensor-mounted IC tag 9 may be a temperature sensor, a distortion sensor and a water detection sensor, etc. besides the coil. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
