The Research Of Vision Inspection System And Its Application On Glucose Inspecting

As a new area, machine vision inspection and recognition is in a primary stage, and is the seeding time opening up wasteland right away more in China. For this purpose, this thesis has made a thorough research for machine vision and its application.First, the thesis has analyzed the international research situation and the need of machine vision. The characteristic of machine vision has been summarized, and the application of machine vision is generalized.Secondly, the key technology of machine vision imaging system is summarized, the rationale of image card and work timing in different scan model are researched deeply. The scheme of image grab based on image card and CCD camera is designed. The scheme of lighting in machine vision is researched deeply by lots of experiment.On the basis of the machine vision imaging system, the scheme of vision inspecting system is designed, which includes the machinery physical design and systematic electric control physical design. The configuration of image card and camera also is finished. In industrial online inspection, the inferior must be eliminated, so in this thesis a separation device of substandard products using the method of strike out directly is designed. After completed the hardware design, the software design is discussed in detail. The operating principle of the software, the flow chart working and the function of every inspecting module are explained in detailed.At last, the experiment of glucose inspecting based on the multifunctional vision inspecting system is developed by the needs of glucose inspection. Because the defect is different specifically for glucose, so two method of inspecting are researched. One method of edge detecting is researched aiming at the filth of the bottle body. The inspecting result of edge detection indicated that this method can reach the expected target. Another defect is small pellet of suspension. Because this defect is difficult to inspect using normal method, so in this thesis a method of time differences is adopted to inspect the small moving target in order to trace the small pellet. At the last of this thesis the software design of glucose inspecting experiment is completed.