Plug insert state detection device and method

Abstract

The invention discloses a plug insert state detection device comprising a socket, a detection circuit, a single-chip microcomputer control module and a relay control module; the detection circuit is connected in series with the socket, and used for detecting load access information; the detection circuit is connected in parallel with the relay control module; the relay control module is used for controlling the socket to power on / off; the detection circuit is connected with the single-chip microcomputer control module, and sends a detection result to the control module; the single-chip microcomputer control module is used for sending an execution order to the relay control module; the current waveform detection method can accurately determine whether a load is connected with the socket or not, and the determination time is very short and can reach the millisecond level, thus effectively detecting a loosening plug, carrying out corresponding treatments, preventing plug loosening conditions, and preventing a series of problems and accidents caused by poor contacts.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a plug insertion state detection device and method. Background technique [0002] At present, most of the methods for detecting whether a plug is inserted in the socket use infrared directing or micro-movement devices, but no matter whether infrared directing or micro-moving devices, there are problems in their own stability and installation difficulty. [0003] The infrared radiation device generally consists of an infrared emitting tube and a receiving tube. The emitting tube emits a certain amount of light. On the receiving tube, the combined circuit converts the light into a certain voltage. When the middle is blocked, the voltage will be emitted and transformed. Detect the change of the voltage to detect whether there is foreign matter inserted. The launch tube and the receiver are easily affected by dust and strong light, resulting in misjudgment of detection, and the i...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to improve the reliability of plug insertion state detection and reduce potential safety hazards. In order to solve the above problems, the present invention provides a plug insertion state detection device, including a socket, a detection circuit, a single-chip microcomputer control module and a relay control module ;

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