| 摘要 |
PROBLEM TO BE SOLVED: To enable surely to determine and report the fact of a disaster occurrence on the spot when the disaster occurs at the spot, and to surely receive a report of individual sensors even for the simultaneous report from the sensors installed at a plurality of points. SOLUTION: When a part of outer shape is fitted into a round hole 3a of the center of a hollow disk 3, a solid sphere 4 of the sensor 11 turns off a micro switch 2, and when a case 1 is inclined by a prescribed angleθor more from the perpendicular direction, it is released from the inside of this round hole 3a and turns on the micro switch 2. In the case 1, a radio signal transmitter is built in which sends the radio signal while repeating sending and stopping with irregular time intervals when the micro switch is turned on. By this radio signal transmitter, on the receiving side, also to the simultaneous reports from the sensors installed at the plurality of points, the individual reports from the sensors are made surely receivable. COPYRIGHT: (C)2005,JPO&NCIPI
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