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Path Planning of an Autonomous Mobile Robot using Enhanced Bacterial Foraging Optimization Algorithm
تخطيط مسار الروبوتات المتنقلة على أساس خوارزمية النهم للبكتريا المحسنة

Authors: Nizar Hadi Abbas نزار هادي عباس --- Farah Mahdi Ali فرح مهدي علي
Journal: Al-Khwarizmi Engineering Journal مجلة الخوارزمي الهندسية ISSN: 18181171 23120789 Year: 2016 Volume: 12 Issue: 4 Pages: 26-35
Publisher: Baghdad University جامعة بغداد

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Abstract

This paper describes the problem of online autonomous mobile robot path planning, which is consisted of finding optimal paths or trajectories for an autonomous mobile robot from a starting point to a destination across a flat map of a terrain, represented by a 2-D workspace. An enhanced algorithm for solving the problem of path planning using Bacterial Foraging Optimization algorithm is presented. This nature-inspired metaheuristic algorithm, which imitates the foraging behavior of E-coli bacteria, was used to find the optimal path from a starting point to a target point. The proposed algorithm was demonstrated by simulations in both static and dynamic different environments. A comparative study was evaluated between the developed algorithm and other two state-of-the-art algorithms. This study showed that the proposed method is effective and produces trajectories with satisfactory results.

يقدم هذا البحث , وصفا لمشكلة تخطيط مسارالروبوتات المتنقلة في الزمن الحقيقي والمتمثلة بايجاد مسار امثل للروبوت من نقطة بداية والى نقطة نهاية على خريطة مسطحة بشكل مساحة ثنائية الابعاد. قدم خوارزمية محسنة لطريقة النهم للبكتريا لحل مسألت تخطيط المسار. ان هذه الخوارزمية المستوحاة من الطبيعة والتي تقلد عملية بحث عن المؤن لبكتريا مسماة بال ( أي كولاي) استخدمت لايجاد مسار من نقطة بداية الى نقطة نهاية. الخوارزمية المقترحة تم عرضها واثباتها عن طريق محاكاة لنوعين من البيئات المختلفة الثابتة والمتحركة. اجريت مقارنة بين الطريقة المطورة و طريقتين اخريين حديثة. هذا البحث اظهر فاعلية هذه الطريقة المقترحة في ايجاد مسارات بشكل مرضٍ.


Article
A Cognitive Nonlinear Fractional Order PID Neural Controller Design for Wheeled Mobile Robot based on Bacterial Foraging Optimization Algorithm

Authors: L.T. Rasheed --- A.S. Al-Araji
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2017 Volume: 35 Issue: 3 Part (A) Engineering Pages: 289-300
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

The aim of this paper is to design a proposed non-linear fractional order proportional-integral-derivative neural (NFOPIDN) controller by modifying and improving the performance of fractional order PID (FOPID) controller through employing the theory of neural network with cognitive optimization techniques for the differential - drive wheeled mobile robot (WMR) multi-input multi-output (MIMO) system in order to follow a pre-defined trajectory. In this paper a cognitive bacterial foraging optimization algorithm (BFOA) has been utilized to find and tune the parameters of the proposed (NFOPIDN) controller and then find the optimal torque control signals for the differential - drive WMR. The simulation results show that the proposed controller can give excellent performance in terms of compared with other works (minimized tracking error for Ranunculoid-curve trajectory, smoothness of torque control signals obtained without saturation state and no sharp spikes action as well as minimum number of memory units needed for the structure of the proposed NFOPIDN controller).

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