Fuzzy Path Planning in a Plane With Fixed Obstacles

Publish Year: 1386
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

FJCFIS01_178

تاریخ نمایه سازی: 14 خرداد 1387

Abstract:

In this paper a new approach for finding optimal path planning in a plane with fixed obstacles is discussed. We consider a movable rigid body in a plane with fixed obstacles. The goal is to find the optimal path which brings rigid body from a given initial point to a given final point such that the length of path is minimum and the distance between rigid body and obstacles is maximum. By considering the length of path and the distance between rigid body and obstacles as objective functions, we obtain a multi-objective problem. Because of the imprecise nature of decision maker's judgment, these multiple objectives are viewed as fuzzy objectives. Then we determine intervals for the optimal value of objective functions such that these intervals for the distance between rigid body and obstacles are given and for the length of path is achieved by solving two optimal non-linear programming problems (ONPP). Now, we define a strictly monotonic decreasing or increasing membership function as degree of satisfaction for any objective functions on achieved intervals. Then the optimal policy is to find an optimal path which maximize all of membership functions, simultaneously. Thus, we obtain an ONPP which gives a (local) Pareto solution for original goal. Numerical example is also given.

Authors

M Zamirian

Department of Mathematics Islamic Azad University of Bojnourd, Iran

A.V Kamyad

Department of Mathematics Ferdowsi University of Mashhad,Mashhad ۹۱۷۷۵-۱۱۵۹, Iran

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