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Pneumatic driven system has been widely used in industrial automation mainly for relatively simply tasks with open-loop control. Because of the compressibility and less stop position, they were considered hard to control in a precise motion control system. With the help of newly developed pneumatic servo control technology, it is just as easy of using electro-servo system as to use servo-pneumatic...
This paper describes the development of a vision inspection sensor system for the automation of laser welding processes in heavy industries. The system consists of PC based vision camera and stripe type laser diode. Its structure, basic principle of this system and the mathematic model and error analysis are also deascribed. A mathematic model is established in order to analyse the influence on sensor...
Fruit image segmentation issue on color difference between mature fruits and backgrounds under natural illumination condition is an important and difficult content of fruit-harvesting robot vision. Some studies concerning fruit image segmentation have been presented in the last few years. However, these studies are focused on particular fruit and different from segmentation results. In this paper,...
An on-line visual tracking sensor system for the automation of laser welding processes in heavy industries is presented. A method of image process and features extraction for structured light image of laser welding has been developed. In order to set the range of interest, the Radon Transform is applied to determine the x and y coordinate in image coordinate system. For image de-noising, the median...
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