Journal
INTERNATIONAL JOURNAL OF ADVANCED ROBOTIC SYSTEMS
Volume 18, Issue 5, Pages -Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/17298814211042730
Keywords
Autonomous land vehicle; path planning algorithm; A-Star algorithm; artificial potential field; heuristic function
Categories
Funding
- Natural Science Foundation of China [61801359, 61571345]
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This article presents a novel path planning algorithm for autonomous land vehicles, which improves upon the shortcomings of the traditional A-Star algorithm by combining the artificial potential field method. The proposed algorithm enhances efficiency in path planning and makes the path smoother for easier control of autonomous land vehicles.
The path planning of autonomous land vehicle has become a research hotspot in recent years. In this article, we present a novel path planning algorithm for an autonomous land vehicle. According to the characteristics of autonomous movement towards the autonomous land vehicle, an improved A-Star path planning algorithm is designed. The disadvantages of using the A-Star algorithm for path planning are that the path planned by the A-Star algorithm contains many unnecessary turning points and is not smooth enough. Autonomous land vehicle needs to adjust its posture at each turning point, which will greatly waste time and also will not be conducive to the motion control of autonomous land vehicle. In view of these shortcomings, this article proposes a new heuristic function combined with the artificial potential field method, which contains both distance information and obstacle information. Our proposed algorithm shows excellent performance in improving the execution efficiency and reducing the number of turning points. The simulation results show that the proposed algorithm, compared with the traditional A-Star algorithm, makes the path smoother and makes the autonomous land vehicle easier to control.
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