Research On The Tube-type Bottle Characteristic Parameters Inspecting System With Vision Inspection

Vision Inspection is a promising technology and has been made use of in various fields of modern industry. It could relieve human being out of repeated and boring labor work, avoiding mistakes or missing because of man's tiredness. Therefore, our inspection accuracy, speedth and abilities have been improved greatly by using this kind of technology. The research aimed at the design of a tube-type bottle image inspecting system with vision inspection, and simulated actual inspection of glass bottles in the laboratory.The main contributions of this dissertation are the followings:Firstly, the structure of the inspecting system was introduced. Aiming at the characteristic of medicine tube-type bottle inspection, the dissertation discussed the project as a whole, selecting of acquisition equipment and designing of illumination apparatus. Primary designing objectives for the system have been achieved.Secondly, the dissertation concerns on the application of digital image processing technology to the detection of defect in empty bottle inspection. After the conclusion of the traditional edge detection methods, several novel algorithms based on wavelet transform for the inspection of empty bottle bottom, mouth and body were put forward. Meanwhile, an improved algorithm of RHT for the system was proposed to obtain the size of inside and outside diameter of the bottle.Experiments have proved their efficiency and feasibility.Thirdly, the dissertation introduced the real-time image processing system. Processing algorithms were realized on SEED-VPM642, and the high efficiency and feasibility of TMS320DM642 processor has been proved. Using DSP was an advanced method of improving efficiency of the inspection system.Finally, the software design was accomplished, focusing on the demand of inspection and the characteristic of DSP. The whole system test was carried out successfully.