Analysis of error causes and methods to improve robot positioning accuracy

Authors: Zhu Liangliang
Published in issue: #5(70)/2022
DOI: 10.18698/2541-8009-2022-5-797
Category: Informatics, Computer Engineering and Control | Chapter: System Analysis, Control, and Information Processing, Statistics
Keywords: robot accuracy, robot positioning errors, error prevention, accuracy compensation, online detection feedback control technology, autonomous calibration technology, calibration of robot kinematic models, calibration of robot’s physical constraints, model-free calibration technology
Published: 24.06.2022

The reasons affecting the positioning accuracy of robots are analyzed. Various standards are used to make a multidimensional classification of positioning errors. Two main ways to improve the accuracy of robot positioning are considered: error prevention and error compensation, and the conditions for their application are characterized. Within the framework of the mentioned methods, a review of the methods providing the accuracy of robot positioning is performed, the conditions of their application are analyzed, the advantages and disadvantages of each method are summarized. The results of the study provide a basis for the further development of algorithms for eliminating the positioning errors of robots, as well as for designing high-precision robots and improving the positioning accuracy of existing robots.

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