ALARM APPARATUS USING VOICE
An alarming apparatus using a sound signal is provided that solves interference phenomenon to be occurred in conventional wireless communication method using radio waves and decreases a cost of the system. The alarming apparatus, which receives an abnormal sense signal from at least one sensor sensi...
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| Main Author | |
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| Format | Patent |
| Language | English Korean |
| Published |
20.01.1997
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| Edition | 6 |
| Subjects | |
| Online Access | Get full text |
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| Summary: | An alarming apparatus using a sound signal is provided that solves interference phenomenon to be occurred in conventional wireless communication method using radio waves and decreases a cost of the system. The alarming apparatus, which receives an abnormal sense signal from at least one sensor sensing various abnormal states as being installed in different spaces within a building and communicates with a remote site control unit, includes at least one transmitter(10~13) being installed at the same space as the sensor in a manner of being corresponded one-to-one to each sensor, spread-spectrum modulating an abnormal sense signal generated from a corresponding sensor to a sound signal and wireless-transmitting it; at least one repeater(35~38) being installed to the same space as the transmitter in a manner of being corresponded one-to-one to each transmitter, demodulating the sound signal wirelessly received from the transmitter, and generating a alarming sound according to the demodulation result or outputting a guide sound transmitted from the remote site main control unit; a signal transmitter(40) for analyzing an abnormal sense signal transmitted from a repeater in a wire to generate a corresponding alarming control signal to the repeater, reporting the abnormality to the remote side main control unit, granting a proper cycle to each repeater, and communicating exclusively. |
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| Bibliography: | Application Number: KR19930031341 |