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A Vision Guided Robot (VGR) System is basically a robot fitted with one or more cameras used as sensors to provide a secondary feedback signal to the robot controller to more accurately move to a variable target position. VGR is rapidly transforming production processes by enabling robots to be highly adaptable and more easily implemented, while dramatically reducing the cost and complexity of fixed tooling previously associated with the design and set up of robotic cells, whether for material handling, automated assembly, agricultural applications, life sciences, and more. 〔 Robotic Industries Association by Tanya M. Anandan, Contributing Editor POSTED 04/02/2013 http://www.robotics.org/content-detail.cfm?content_id=3992〕 In one classic though dated example of VGR used for industrial manufacturing, the vision system (camera and software) determines the position of randomly fed products onto a recycling conveyor. The vision system provides the exact location coordinates of the components to the robot, which are spread out randomly beneath the camera's field of view, enabling the robot arm(s) to position the attached end effector (gripper) to the selected component to pick from the conveyor belt. The conveyor may stop under the camera to allow the position of the part to be determined, or if the cycle time is sufficient, it is possible to pick a component without stopping the conveyor using a control scheme that tracks the moving component through the vision software, typically by fitting an encoder to the conveyor, and using this feedback signal to update and synchronize the vision and motion control loops. Such functionality is now common in the field of vision guided robotics (VGR). It is a fast-growing rapidly evolving technology proving to be economically advantageous in countries with high manufacturing overheads and skilled labor costs by reducing manual intervention, improving safety, increasing quality, and raising productivity rates, among other benefits. 〔 Intelligent Robots: A Feast for the Senses by Tanya M. Anandan, Contributing Editor Robotic Industries Association POSTED 06/25/2015, http://www.robotics.org/content-detail.cfm?content_id=5530〕 〔Zens, Richard. 2006. Vision-guided robot system trims parts. Vision Systems Design, PennWell Corporation (Tulsa, OK), http://www.vision-systems.com/articles/article_display.html?id=261912〕 〔Perks, Andrew. 2004. Vision Guided Robots. Special Handling Systems, UK RNA Automation Ltd, http://www.rna-uk.com/products/specialisthandling/visionguidedrobots.html〕 == Vision systems for robot guidance == A vision system comprises a camera and microprocessor or computer, with associated software. This is a very wide definition that can be used to cover many different types of systems which aim to solve a large variety of different tasks. Vision systems can be implemented in virtually any industry for any purpose. It can be used for quality control to check dimensions, angles, colour or surface structure-or for the recognition of an object as used in VGR systems. A camera can be anything from a standard compact camera system with integrated vision processor to more complex laser sensors and high resolution high speed cameras. Combinations of several cameras to build up 3D images of an object are also available. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vision Guided Robotic Systems」の詳細全文を読む スポンサード リンク
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