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The direct kinematics of redundant parallel robot for predictive control
Belda, Květoslav ; Böhm, Josef ; Valášek, M.
This paper deals with the design of direct kinematics for real-time path control of planar redundant parallel robots. The main reason for its using is a fact that the direct kinematics gives possibility to use Cartesian coordinates as against joint ones and by this considerably simplifies model of the robot and computation of high level control based on knowledge of such model, eg. Predictive Control. As a subtask of design of the direct kinematics, the trajectory planning is discussed.
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Implementation of Sliding Mode Control in SIMULINK 4.1 (R12.1)
Belda, Květoslav
The paper briefly introduces Sliding Mode Control (SMC) of the planar redundant parallel robot. This type of the robots seems to be one of the promising ways to solve the problems of accuracy and speed. The main goal is presentation of using MATLAB-SIMULINK environment verion 4.1 (R12.1) for simulation of such control of the robot. Implementation is accomplished by combination of S-Function and ordinary Function, both programmed in C code as mex Functions.
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Design and simulation of predictive control of drives of planar redundant parallel robot
Böhm, Josef ; Belda, Květoslav ; Valášek, M.
Actual industrial robots have a low operation speed. This is caused mainly by the max. reachable acceleration for whole velocity interval. Parallel robots seem to be one of the promising solution of this. The paper deals with design and simulation of Generalized Predictive Control (GPC) of such robots. GPC is suitable, because the model of the robot is well known and used Quadratic criterion can be easily modified. And moreover the algorithmization of GPC is relatively simple and suitable for real control.
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