基于視覺感知的機(jī)械臂運(yùn)動(dòng)控制研究
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圖片說明:機(jī)器人實(shí)物圖
[Abstract]:With the rapid development of science and technology and modern industry, the robot plays a more and more important role in various fields. In recent years, the development of vision technology is changing with each passing day, and the machine vision has made the robot more intelligent, and the vision system and the visual perception technology become an important part of the intelligent robot. The robot with the ability of visual perception becomes the hot research direction of the researchers in the present society. In this paper, an in-depth theoretical research and experimental verification of a robot article grasping system with binocular vision perception is carried out. In this paper, based on the development environment of Linux, the robot system based on binocular vision perception is designed. the embedded development platform processes the target object image acquired by the binocular camera, obtains the spatial three-dimensional coordinate information of the target object, and transmits the space three-dimensional coordinate information to the control end of the mechanical arm, And the mechanical arm control mechanism controls each joint rotation to finish the grabbing operation on the target object according to the set mechanical arm joint adjustment strategy. The content of this paper is mainly divided into the following three aspects: (1) The hardware structure of the research robot is studied, and the structure design of the robot is completed. The control principle of each module of the robot is mainly studied, and the internal and external parameters and the distortion coefficient of the camera are obtained by the camera calibration. And (2) the camera imaging model is researched, the binocular distance measurement and the hand-eye relation calibration are finished, and the three-dimensional coordinates of the target object with respect to the robot gripping mechanism are obtained. Firstly, the camera is subjected to three-dimensional correction through a polar line constraint principle, the image acquired by the camera is matched with the stereo matching by using the SGBM algorithm, and the three-dimensional coordinate of the target object space is obtained through the depth recovery and the hand-eye relation calibration. (3) To study the inverse kinematics problem of the robot grasping mechanism, and to design the automatic adjustment strategy of the mechanical arm joint to verify the structural rationality of the mechanical arm.
【學(xué)位授予單位】:蘭州理工大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TP391.41;TP241
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