PROBLEM TO BE SOLVED: To enable the position of a receiving coil to be detected without moving a cradle in such a manner that a detecting section which detects the position of the tag of the receiving coil is included in the cradle.SOLUTION: The tag 43 in which identification information ID1 has been stored is built in the receiving coil 4. In the meantime, a plurality of readers Wi (i=1 to 10) for reading the identification information ID1 of the tag 43 which has been built in the receiving coil 4 are built in the cradle 31. When the receiving coil 4 is installed in the cradle 31, the tag 43 of the receiving coil 4 enters the inside of the readable region R of the reader W7 which has been built in the cradle 31. Therefore, the installation position of the receiving coil 4 can be detected depending on which reader from among the readers W1 to W10 reads the identification information ID1 of the tag 43.COPYRIGHT: (C)2013,JPO&INPIT【課題】コイルの位置を自動で検出する。【解決手段】受信コイル4に、識別情報ID1を記憶したタグ43を内蔵する。一方、クレードル31に、受信コイル4に内蔵されているタグ43の識別情報ID1を読み取るリーダWi(i=1~10)を複数個内蔵する。受信コイル4をクレードル31に設置すると、受信コイル4のタグ43が、クレードル31に内蔵されたリーダW7の読取可能領域Rの内側に入り込む。したがって、リーダW1~W10の中でどのリーダがタグ43の識別情報ID1を読み取るかによって、受信コイル4の設置位置を検出することができる。【選択図】図8
