Optical detection type pressing plate protector capable of preventing virtual connection and shielding by mistake

Abstract

The invention relates to an optical detection type pressing plate protector capable of preventing virtual connection and shielding by mistake. The optical detection type pressing plate protector capable of preventing virtual connection and shielding by mistake is characterized by comprising a calibration part, an infrared sensor and a central processing unit, the calibration part is composed of a sticky patch and a calibration point and installed on a hard pressing plate link piece in an insulation mode; the central processing unit and the infrared sensor are connected together to form a front obstacle wireless sense node which is installed on a protection screen and located under the calibration part; infrared light is emitted to the calibration part through the infrared sensor, and the front obstacle wireless sense node judges whether to receive reflected light of the calibration part or not to achieve functions of protection and detection. According to the optical detection type pressing plate protector capable of preventing virtual connection and shielding by mistake, whether the situations of virtual connection and non-hard pressing plate link piece shielding exist on the hard pressing plate link piece or not can be judged accurately, and electric safety hazards are avoided by means of a physical attribute detection mode; due to the fact that the calibration part is additionally arranged, the problem of judgment of input in place of the hard pressing plate and distinguishing under the situation that link piece shielding does not exist in a small space is solved.

Description

Technical field [0001] The invention belongs to the technical field of wireless sensing and communication and infrared light ranging, in particular to a light detection type pressure plate protection device that prevents virtual connection and false shielding. Background technique [0002] The pressure plate is a frequently used component in electrical equipment. When the pressure plate is working, it is necessary to monitor in real time whether the hard pressure plate is connected for virtual connection and the non-hard pressure plate is connected to block. In order to improve the work efficiency of hard plate detection, currently the following methods are usually used: Method one, the switch is drawn on both sides of the plate to form a detection loop; Method two, the use of remote viewing platform and visual recognition technology to achieve plate monitoring; Method three , Adopt non-contact form to monitor the state of the pressing plate. Due to the electrical properties of ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a light detection type pressure plate protection device to prevent false connection and false occlusion, and solve the problem of judging whether the hard pressure plate is put into place in a narrow space and the case of non-continuous occlusion discerning problem

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