| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem in a conventional monitoring system that a communication range is not be made long (wide), because the size of an antenna is limited, since an antenna part for performing transmission to and reception from outside is contained in an IC tag (RFID), and therefore the range enabling communication with the outside is also limited. <P>SOLUTION: The antenna is not mounted in the IC tag, but mounted in a curler. Thereby the antenna is made large in the size and, as the result, transmission and reception are performed with little power consumption. Besides, the communication range is made longer (wider) than that of the system wherein the antenna is mounted in the IC tag. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
