| 摘要 |
PROBLEM TO BE SOLVED: To provide a warning system capable of specifying the place of an incident to quickly and appropriately cope with a dubious person and some case if the dubious person intrudes into a classroom, etc., during class or some kind of incident occurs. SOLUTION: In this warning system, respective classrooms K1, K2, K3,... with a loudspeaker 6 installed are provided with a warning switch 9 for transmitting an emergency signal to a broadcasting room 10 via electric wiring 7 with a manual operation. The broadcasting room 10 is provided with a warning device 8 for emitting warning sound on the basis of the emergency signal and a warning display device 13, etc., having a plurality of warning lamps L1, L2, L3,... for specifying and displaying a classroom whose warning switch 9 is operated on the basis of the emergency signal. These devices are connected by using the existing electric wiring 7 for a school public address system. COPYRIGHT: (C)2003,JPO
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