| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor type alarm method which can be placed under a mat, a carpet or the like on a floor, and in any position in a room, and when an invader treads on, an alarm is issued continuously and automatically by an action of a magnet, which can usually be inhibited using an elastic member. SOLUTION: The floor type alarm method includes a footboard of elastic member placed on a baseboard, and a magnet and a magnetic plate disposed on the baseboard and the lower surface of the footboard, respectively, together with electrode plates. Connections of the electrode plates to a power supply section and an alarm section by electric wires activate alarm ringing. COPYRIGHT: (C)2004,JPO&NCIPI
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