Automatic lighting system in case of incoming call from fixed telephone

The invention discloses an automatic lighting system in the case of an incoming call from a fixed telephone. The system comprises a telephone line; a current detection element is arranged on the telephone line; the current detection element is in wire connection with a single chip microcomputer cont...

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Bibliographic Details
Main Author TENG SHUYING
Format Patent
LanguageChinese
English
Published 27.04.2016
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
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Summary:The invention discloses an automatic lighting system in the case of an incoming call from a fixed telephone. The system comprises a telephone line; a current detection element is arranged on the telephone line; the current detection element is in wire connection with a single chip microcomputer controller; the single chip microcomputer controller is in wire connection with a relay control coil; and the normally-opened contact of the relay is serially connected onto an LED lamp power supply line. Problems that the display screen of the existing fixed telephone is dark, effective lighting can not be realized, people have to feel in the dark to receive a call at night, the telephone is likely to drop on the ground, the telephone is likely to be damaged or the call is cut off and the like can be solved.
Bibliography:Application Number: CN20141506504