الفهرس | Only 14 pages are availabe for public view |
Abstract The process of staging one of the most important processes good preparation for vegetables and fruit after harvest. Since staging a good lead to the lifting of product quality and makes it identical to the established standards for each grade, according to the requirements of the local and international market in the case of export. Moreover makes the best product suitable for automated manufacturing processes. It also helps to ease packing, transportation and trading. And has been observed that the staging manual has many drawbacks of the most important high cost of skilled labor and lack of availability, as well as lower efficiency and production rate, in addition to product exposure to pollution and different personality traits of the workers as well as lower efficiency and production rate. While roads mechanism feature speed, efficiency and low operating costs and non-pollution products, especially when using modern methods for sorting. And adopt all the methods used for grading the difference in the character of one or more of the natural qualities of the fruits of such dimensions, weight, color or degree of maturity etc.. Since the goal of the process of sorting the fruit is the season of ripe fruits in terms of color and nonhomogeneous. Since these qualities have a significant impact and effective client’s decision For these reasons, the fruit must be handled very carefully sorting and grading operations in order to see the fruits of fruits and vegetables in different stages of the field to the final consumer with varying degrees of homogeneity to suit the taste of the consumer. Automated imaging systems make it possible to check the quality and safety of fruit and vegetables consumed by the public. Sorting and grading systems current allow automated sorting and grading fruit and vegetables according to the quality attributes such as color, texture and size and freedom from defects and injuries on the basis of the respective imaging the surface of the fruit, the 86 Summary and conclusion spectrum to ensure access to the fruits free of defects and contamination. So this study aimed to provide and build vision system mechanism works on the basis of image analysis to sort fruits vegetables and fruit automatically without destroyed by a system programmer it processes images based on color and how homogeneity fabric fruits to be classified to varying degrees have been built in the Department of Agricultural Engineering - College Agriculture - Menoufia University. Objectives of the study Study of some physical and mechanical characteristics which affect the fruit and vegetables sorting were volume, weight, surface area, radius of curvature The coeff-icient of restitution dynamic friction coefficients Firmness and of the individual fruit. Two crops were selected and tested tomato. Design image acquisition unit to take images (chamber lighting and digital camera). Establishment code to measure color and determine the degree of maturity of tomato fruits. Automated vision system components:- 1 - room lighting dimensions 750 × 450 × 400 mm which is a unit capture images of the fruits were manufactured from wood and painted by black from the inside to absorb reflections and provide background by contrast is high in color between them and the fruits and Sticky’s four bulbs fluorescent length 60 cm on opposite sides 35 cm high and 45-degree angle and installed a digital camera at a height of 30 cm from the surface of the fruit. 2-computer has properties Pentium III processor2.00GHZ, RAM 1GB and software MATLAB 9 to establishment code to measure color. |