Emergency signal repeating installation and emergency signal communication system

摘要

PROBLEM TO BE SOLVED: To provide an urgent signal repeater for collecting safety information emitted from an urgent signal generation device, which multiple sufferers possess when disaster occurs. ;SOLUTION: The urgent signal repeater 3 is provided with a reception means receiving a data signal containing safety information of the sufferer, which is emitteded from the plural transmission devices 1, a packet assembly means assembling a packet from data received by the reception means and the transmission means emitting the packet at random intervals. In such a case, the signal outputted from the transmission means is modulated by a frequency different from that of the data signal emitted from the transmission devices 1.;COPYRIGHT: (C)1998,JPO