| 摘要 |
PURPOSE: Provided is an apparatus for generating alarms if ones belongings are separated from the possessor while being carried and so preventing the loss of the belongings. CONSTITUTION: The apparatus comprises a plurality of transmitters(10,20) fastened to each article for generating different signals from each other and a receiver(30) receiving the output signal from the each transmitter and generating alarm sound according to the transmitted result. The each transmitter is composed of a frequency oscillation part(11,21) generating specific frequency, a transmitting part(12,22) outputting each signal having each frequency generated from the oscillation part and a distance limit part(13,23) limiting the distance between the article and the person carrying the article by controlling intensity of the output signal and the receiver is composed of a plurality of frequency receiving parts(31,32) receiving each signal of the frequency corresponding to the each transmitter, a microprocessor(33) judging if each article is gotten away from the holder at a certain distance by receiving the output signal from the frequency receiving parts and a speaker(34) outputting alarm sound according to the output control signal of the microprocessor.
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