Plug insert state detection device and method

Abstract

The invention discloses a plug insertion 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, the detection circuit is used to detect load access information, the detection circuit and the relay The control modules are connected in parallel, the relay control module is used to control the power on or off of the socket, the detection circuit is connected to the single-chip control module, and the detection result is transmitted to the control module, and the single-chip control module is used to send execution instructions to the The above relay control module adopts the method of detecting the current waveform, which can accurately judge whether there is a load connected to the socket, and the judgment time is short, reaching the millisecond level, and can effectively detect the looseness of the plug, and then perform corresponding processing to prevent the plug from loosening And a series of problems and accidents caused by poor contact.

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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