Automatic detection method and detection system of length and width size distribution of shredded tobacco
A size distribution, automatic detection technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of inaccurate analysis, poor detection accuracy, affecting the accuracy of detection results, etc., to improve detection accuracy, rapid detection system, The effect of accurate measurement
Active Publication Date: 2019-06-11
SHANGHAI TOBACCO GRP CO LTD +1
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Problems solved by technology
This method has the problems of poor detection accuracy and inaccurate analysis
The utility model patent with the patent number of 201520677098.4 discloses an automatic measuring system for the length and width of shredded tobacco, and the document "Tobacco detection system based on image processing technology" discloses a detection method for shredded tobacco structure based on image processing. Certain defects, especially the inability to effectively separate the wound tobacco, affect the accuracy of the test results
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[0024] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:
[0025] The research and development idea of the present invention is as follows: first step, the preliminary flexible separation of shredded tobacco is realized through the dispersing system, and the shredded tobacco is made to reach a suspended state at a specific data collection point. The second step is to realize automatic multi-dimensional imaging of dispersed and suspended shredded tobacco, and collect shredded tobacco image data. The third step is to analyze and transform the shredded tobacco image and restore it to three-dimensional data. The fourth step is to map the three-dimensional data into a mathematical model to realize the quantitative analysis of the length and width of cut tobacco.
[0026] The automatic detection method of length and width size distribution of shredded tobacco in the present invention specifically comp...
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The invention discloses a tobacco length and width distribution automatic detection method and detection system. The detection method comprises the following steps that: 1) tobacco is separated and is made to suspend; 2) the original image data of the tobacco are acquired; 3) point cloud data are generated; 4) a tobacco three-dimensional model is restored; 5) aggregation and segmentation are performed, and the curvature of each individual object is calculated, key points are determined according to a certain change ratio, and the three-dimensional distances of the key points are calculated, and length and width data are obtained, and the length and width distribution of the tobacco is put into statistics; and 6) the length and width distribution graph of the tobacco is outputted. The detection system comprises a top cover, a tobacco separation cylinder, an air volume regulating cylinder, an air feed duct and a fan; the detection system further comprises an air compressor, a numerical control box and a computer; and a three-dimensional scanning sensor and an air nozzle are arranged in the tobacco separation cylinder. With the tobacco length and width distribution automatic detection method and detection system of the invention adopted, accurate measurement of the length and width distribution of the tobacco can be realized, and an accurate and rapid detection system is provided for the analysis of the structure of the tobacco.
Description
technical field [0001] The invention relates to a system for measuring the length and width distribution of shredded tobacco in the tobacco industry, in particular to an automatic detection method and a detection system for the distribution of length and width of shredded tobacco. Background technique [0002] The size distribution of shredded tobacco is one of the main factors affecting the physical indicators of cigarettes. Rapid and accurate characterization of the size distribution of shredded tobacco has good guiding significance for shredded tobacco processing. The existing shredded tobacco structure detection mostly adopts shredded tobacco vibration sorting sieve, that is, a certain quality of cut shredded tobacco is evenly distributed on several layers of screens with different apertures, and the shredded tobacco is separated by vibration. The total mass of the samples is compared to obtain the proportions of shredded tobacco of several different structural sizes. T...
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IPC IPC(8): G01B11/02
CPCG01B11/02
Inventor 许峰胡雪舫叶鸿宇张建中胡德亮范学忠
Owner SHANGHAI TOBACCO GRP CO LTD