| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a resident to carry a radio slave device as constantly as possible. <P>SOLUTION: A radio slave device 1 is always in a state for receiving a confirmation signal and transmits a response signal upon receiving a confirmation signal. A control room master device 30 identifies a radio unit 10 which received the response signal and identifies the current location of the radio slave device 1. When detecting that the resident is out of the dwelling unit, the control room master device 30 makes the radio unit 10 transmit a confirmation signal, and determines whether the current location of the radio slave device 1 is in the dwelling unit or not. When determining that it is in the dwelling unit, a notification part 20 installed near the vestibule of the dwelling unit notifies that the radio slave device 1 is not being carried by the resident. Since it is notified around the vestibule where the resident may stay that the radio slave device 1 is not being carried by the resident if detecting that the resident went out of the dwelling unit leaving the radio slave device 1 in the dwelling unit, the resident who notices the notification may return into the dwelling unit to pick up the radio slave machine 1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
