Device and method for automatically detecting workshop dustfall based on machine vision

Abstract

The invention relates to a device and a method for automatically detecting workshop dustfall based on machine vision. The device consists of a white smooth flat plate, a parallel light source, a lensand an image acquisition processor, wherein the flat plate is installed in the middle of the device and is placed at a position where the dustfall is to be detected; the parallel light source is formed by a light-emitting diode (LED) lamp and a fresnel lens and is installed at the right upper part of the flat plate in an inclined way, and an included angle between the flat plate and the parallel light emitted by the light source is 45 degrees; the image acquisition processor consists of a main control chip and a camera; an ARM series of single-chip microcomputer is adopted as the main controlchip, and the model of the camera is OV2640; the lens and the image acquisition processor are installed at the left side of the flat plate and are positioned on the same central axis line, and an included angle between the central axis line and the flat plate is 45 degrees. The parallel light emitted by the parallel light source irradiates the flat plate, the flat plate reflects the light to the lens, and the reflected light then enters the image acquisition processor for performing image acquisition; the image acquisition processor judges the dustfall by means of image recognition so as to determine whether the dustfall is greater than a threshold value or not; if the dustfall is greater than the threshold value, an alarm is given for warning; if the dustfall is smaller than the thresholdvalue, the previous steps are repeated. The device and the method have the advantages of being advanced in algorithm, simple to operate, and the like.

Description

technical field [0001] The invention relates to the technical field of automatic detection of falling dust, in particular to a device and method for automatic detection of dust falling in a workshop based on machine vision. Background technique [0002] The clean room is the clean room, which refers to the removal of particulates, harmful air, bacteria and other pollutants in the air within a certain space, and the indoor temperature, cleanliness, indoor pressure, air velocity and air distribution, and noise Vibration, lighting, and static electricity are controlled within a certain range, and a specially designed room is given. With the development of society, more and more industries need clean room purification engineering. The needs of the production process are closely related to the production equipment and production environment. It is necessary to prevent dust, body debris, hair, etc. from falling on the product, so as to ensure product quality. Therefore, the dete...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the detection of falling dust volume is by manual naked eye detection, which is prone to large errors, making the detection results inaccurate and affecting the normal work of the workshop

At present, there is no automatic detection and alarm device for the amount of dust in the bearing press-fitting room, and the amount of dust cannot be monitored online

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