Dynamic chaotic ant colony system and its application in robot path planning
LI Juan1, YOU Xiaoming1, LIU Sheng2, CHEN Jia1
1. School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201600, China; 2. School of Management, Shanghai University of Engineering Science, Shanghai 201600, China
Abstract：To solve problems of population diversity and convergence speed when an Ant Colony System (ACS) is used to robot path planning, a dynamic chaos operator was introduced in the ACS. The dynamic chaotic ACS can balance population diversity and convergence speed. The core of dynamic chaotic ACS is that a Logistic chaotic operator was added to the traditional ACS to increase population diversity and improve the quality of the solutions. First, the chaotic operator was added to the pre-iteration to adjust the global pheromone value in the path to increase the population diversity of the algorithm, so as to avoid the algorithm to fall into the local optimal solution. Then, in the later stage, the ACS was used to ensure convergence speed of the dynamic chaotic ACS. The experimental results show that the dynamic chaotic ACS has better population diversity compared with the ACS for the robot path planning problem. The solution quality is higher and the convergence speed is faster. Compared with the Elitist Ant colony System (EAS) and the rank-based Ant System (ASrank), the dynamic chaotic ACS can balance the relationship between the quality of the solutions and the convergence speed. The dynamic chaotic ACS can find better optimal solutions even in the complex obstacle environment. The dynamic chaotic ACS can improve the efficiency of mobile robot path planning.
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LI Juan, YOU Xiaoming, LIU Sheng, CHEN Jia. Dynamic chaotic ant colony system and its application in robot path planning. Journal of Computer Applications, 2018, 38(1): 126-131.
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2018, Vol. 38 
