| 摘要 |
<P>PROBLEM TO BE SOLVED: To notify an abnormality in a whole system, in an alarm system with master and slave alarm units. <P>SOLUTION: An alarm system comprises multiple alarm units, and transmits and receives a radio signal among the alarm units with setting one of the alarm units as a master alarm unit and setting the other alarm units as slave alarm units. In the alarm system, when a state detection part detects an abnormality, a control part of any one of the slave alarm units causes the transmitting and receiving part to transmit an interlocking signal for notifying occurrence of the abnormality, in order to drive notification means of all the other alarm units. And, when receiving the interlocking signal transmitted from the slave alarm unit, a control part of the master alarm unit causes the transmitting and receiving part to transmit an interlocking transfer signal to all the other slave alarm units, in order to drive the notification means of all the other slave alarm units. And then, when a transmission period of the interlocking transfer signal elapses, the control part of the slave alarm unit transmitting the interlocking signal causes the transmitting and receiving part to retransmit the interlocking signal to all the other alarm units. <P>COPYRIGHT: (C)2013,JPO&INPIT |
