Transparent liquid impurity detection system and detection method thereof

Abstract

The invention discloses a transparent liquid impurity detection system. The transparent liquid impurity detection system comprises an operation panel and a host computer, a DSP (digital signal processor), a plurality of CCD (charge coupled device) cameras and a photoelectric switch which are sequentially connected, an encoder, an exclusion device and an exclusion confirmation switch which are connected in parallel, and a PLC (programmable logic controller) station. A detection method of the detection system comprises the following steps of: collecting sequence images of a product to be detected by utilizing the plurality of the CCD cameras and storing the sequence images; performing image background suppression by image pretreatment; performing treatment on the images after background suppression to realize detection and tracking of an object; and extracting features of the object, performing impurity identification according to the features and judging whether impurities exist or not. According to the transparent liquid impurity detection system disclosed by the invention, the acquisition speed and treatment speed of the image sequences can be increased to the greatest extent; and an impurity identification algorithm which is adopted can effectively increase the identification speed and further achieve the purposes of completely replacing artificial detection, increasing detection quality and speed, saving production cost and improving product quality and production benefits on the premise of performing good segmentation, tracking and identification on the visible object.

Description

technical field [0001] The invention relates to a detection system, in particular to a transparent liquid impurity detection system and a detection method thereof capable of testing whether there are impurities in transparent liquids on high-speed production lines in industries such as medicine, wine, and beverages. Background technique [0002] The automatic detection of impurities in transparent liquid is one of the very important detection items in product quality inspection, and it has broad application prospects in the production fields of medicine, food and beverage, and chemical industry. At present, most of the detection of visible foreign objects is carried out manually in China. The artificial light inspection method has the disadvantages of high labor intensity, low efficiency, strong subjectivity of detection results, easy fatigue of detection personnel, large fluctuation of missed detection rate, and susceptibility to the influence of physiological factors of det...

AI Technical Summary

Problems solved by technology

Specifically, it can be divided into the following problems: (1) The problem of fast image acquisition and processing

(3) Rapid and effective identification of impurities

The detection of tiny foreign objects requires a high-resolution vision system, which will undoubtedly increase the amount of processed data. At the same time, in the process of impurity recognition, it is necessary to recognize and process multiple frames of low signal-to-noise ratio sequence images, which will also lead to complex algorithms. , the amount of computation increases

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