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Collision-free path generation for a mobile robot by an artificial transformation of obstacle spaces

Published online by Cambridge University Press:  09 March 2009

H. Ozaki
Affiliation:
Department of Mechanical Engineering, Kurume College of Technology, 1232 Komorino-machi, Kurume (Japan)
T. Shimadzu
Affiliation:
Department of Mechanical Engineering Production Division, Faculty of Engineering, Kyushu University, 6-10-1 Hakozaki Higashiku, Fukuoka (Japan)
A. Mohri
Affiliation:
Department of Mechanical Engineering Production Division, Faculty of Engineering, Kyushu University, 6-10-1 Hakozaki Higashiku, Fukuoka (Japan)

Summary

This paper presents a new method to generate a smooth collision-free path of a mobile robot. The path is generated as follows: First, the obstacle spaces are artificially contracted to obtain an initial collision-free path which leads the mobile robot from the start point to the goal; then the path is iteratively modified to avoid the obstacle spaces which are gradually restored (this is carried out in consideration of the index introduced to evaluate the correctness of the path), in the final step, all the obstacle spaces are fully restored and the obtained path becomes a desirable collision-free one. The proposed method is effectively applied to an example of planning planar movements of a mobile robot.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1989

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References

1.Khatib, O. and Le Maitre, J.F., “Dynamic control of manipulators operating in a complex environment” Proc. RoManSy, 3rd CISM-lFToMM Symp. 267282 (1978).Google Scholar
2.Khatib, O., “Real-time obstacle avoidance for manipulators and mobile robots” Proc. IEEE Int. Conf. Robotics and Automation 500505 (1985).Google Scholar
3.Ozaki, H., Mohri, A. and Takata, M., “Planning of collision-free movement of a manipulator considering its body spaceTrans. Soc. Instrm. Control Engrs. 18, No. 9, 942949 (1982).Google Scholar
4.Baba, N., Miyake, T. and Hiketa, H., “A multiobjective programming approach for a collision-free movement of a robot manipulatorTrans. Soc. Instrm. Control Engrs. 23, No. 11, 11921198 (1987).Google Scholar
5.Hirukawa, H. and Kitamura, S., “A collision avoidance method for robot manipulators based on the safety first algorithm and the potential functionJ. Robotics Soc. Japan 5, No. 3, 171179 (1987).CrossRefGoogle Scholar
6.Lozano-Perez, T., “Automatic planning of manipulator transfer movementsIEEE Trans. SMC 11, No. 10, 681698 (1981).Google Scholar
7.Red, W.E. and Truong-Cao, H.V., “Configuration maps for robot path planning in two dimensionsTrans. ASME, J. Dyn. Syst. Meas. Control 107, 292298 (1985).Google Scholar
8.Hasegawa, T., “Collision avoidance using characterized description of free spaceTrans. Soc. Instrm. Control Engrs. 22, No. 6, 616622 (1986).Google Scholar
9.Hasegawa, T. and Terasaki, H., “Collision avoidance for multi-joint manipulators: divide and conquer approach by determining intermediate goalsTrans. Soc. Instrm. Control Engrs. 23, No. 8, 842848 (1987).Google Scholar
10.Kondo, K. and Kimura, F., “Collision avoidance using free space enumeration method based on Lee's algorithmJ. Robotics Soc. Japan 5, No. 4, 263272 (1987).CrossRefGoogle Scholar
11.Ozaki, H., “On the planning of collision-free movements of manipulatorsAdvanced Robotics 1, No. 3, 261272 (1986).Google Scholar
12.Rogers, D.F. and Adams, J.A., Mathematical Elements for Computer Graphics (McGraw-Hill, New York, 1976).Google Scholar