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The Tobacco production process includes the following aspects: the resurgence of threshing, baking, silk, volume, and packaging, which the threshing links major processes affecting product form, leaves after playing piece smoke size to meet certain quality indicators, is the main basis of the piece smoke quality evaluation, and should therefore be accurate and fast detection, real-time adjustment of the threshing parameters, better threshing effect. Piece smoke hit leaf production line manual sampling screening grading, weighing, and then the weight translation of different levels of area segment piece smoke proportion, the real-time, there are human factors. End, the design of real-time acquisition of the image of sheet tobacco smoke specifications based on the CMOS (Complementary Metal Oxide Semiconductor) image sensor chip measuring apparatus, the use of surface image sensors, this measurement method is more appropriate to the definition of the structure of sheet tobacco, accurate statistics The proportion of each area segment piece smoke, timely guidance to hit the leaves before the adjustment of process parameters, to improve the quality of threshing. Means of image acquisition system, the image processing system, and a sheet tobacco dispersed by means of several parts. The image acquisition system by the CMOS image sensor, lens and light source is composed of several parts, with convex imaging theory accurately captured piece smoke image. Collection sheet tobacco images under the control of the microcontroller CMOS image sensor and stepper motor coordination, CMOS image sensor, the image data into the microcontroller for processing, thus completing the statistical work of the chip the smoke area calculation and area ratio. The thesis piece smoke area measurement methods, the hardware and software design method, and gave details of the debugging process of the whole system. Statistical algorithms, image data processing, application row combination column contains the \measurement, with a wide range of adaptability. The image sensor and the microcontroller interface circuit to match the level and speed synchronization under SCM control image data acquisition and processing work to be completed. The measuring device to achieve a the sheet tobacco area of ??real-time, accurate automatic measurement, to provide reliable data to hit the leaves before the adjustment of process parameters. Little improvement on existing playing leaf production line, closed-loop control system can be realized with sheet tobacco Specifications target.
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