| 摘要 |
PROBLEM TO BE SOLVED: To provide an instantaneous alarm system which alarms simultaneously with the occurrence of a case or an accident. SOLUTION: A radio wave transmitter oscillating a specific signal is carried to originate a signal wave on the occurrence of a case or the accident. Thus, the alarm system consisting of a red rotating lamp, an electronic alarm whistle, a radio wave receiver, an oscillation sensor, and a rechargeable battery is operated. COPYRIGHT: (C)2005,JPO&NCIPI
|
