Infrared long-distance alarm

The utility model relates to an infrared long-distance alarm, which is composed of infrared probes, a control circuit, a radio emitter, and a power supply. The utility model is characterized in that the control circuit works by the infrared probes triggering, and controls the working state transitio...

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Bibliographic Details
Main Author YUNLEI GUAN
Format Patent
LanguageEnglish
Published 02.05.2001
Edition7
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The utility model relates to an infrared long-distance alarm, which is composed of infrared probes, a control circuit, a radio emitter, and a power supply. The utility model is characterized in that the control circuit works by the infrared probes triggering, and controls the working state transition of two relays which are connected in the power supply loop of the radio emitter to achieve the goal of controlling the radio emitter to emit alarm signals. The device has the advantages that the circuit structure is simple; the device can reset after a trigger, etc.
Bibliography:Application Number: CN2000238760U