Title :
Correction of errors due to flexibility of dynamic systems
Author :
Shih, Chi-Hsien V. ; Sherkat, Nasser ; Thomas, Peter
Author_Institution :
Dept. of Comput., Nottingham Trent Univ., UK
Abstract :
This paper presents an novel approach for tackling problems associated with flexibility of dynamic structures. A number of solutions to this problem have been developed by innovative combination of fuzzy logic and neural networks inexact algorithms. A spring-mounted pen is used in the experiments to emulate the deviation of an end-effector caused by flexibility. A pre- and post-processing vision-based machine control system is developed. Comparing the desired pattern and the actual output, the intelligent machine console can automatically make appropriate compensation through online self-learning process. Various experimental results indicate that using the algorithms developed the system can compensate for flexibility and produce excellent results, much better than human operators
Keywords :
compensation; computer vision; flexible structures; fuzzy control; fuzzy neural nets; industrial control; neurocontrollers; unsupervised learning; dynamic system flexibility; end-effector deviation; error correction; fuzzy logic; inexact algorithms; intelligent machine console; neural networks; online self-learning process; post-processing vision; pre-processing vision-based machine control system; spring-mounted pen; Artificial intelligence; Control systems; Error correction; Fixtures; Fuzzy logic; Machine control; Machine intelligence; Monitoring; Neural networks; Springs;
Conference_Titel :
Robotics and Automation, 1996. Proceedings., 1996 IEEE International Conference on
Conference_Location :
Minneapolis, MN
Print_ISBN :
0-7803-2988-0
DOI :
10.1109/ROBOT.1996.506181