| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology capable of confirming in a multi-hop data relay that information transmitted from an information center is displayed at a local device locally connected to a relay device, without dispatching a maintenance person. <P>SOLUTION: If a radio relay device 1 receives relay data including an emergency broadcast distributed from an information center 4, the radio relay device 1 relays the relay data to a neighbor radio relay device and then determines if the relay data is for a local device connected to the neighbor radio relay device (hereinafter referred as neighbor local device) or not. Then, if the relay data is for the neighbor local device, the radio relay device 1 refers to a local device control content table 1060, controls a local device connected to own radio relay device according to the data type for the neighbor local device contained in the relay data, and transmits local data obtained from the local device to the information center 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
