Reactive algorithm in an unknown environment is very useful to deal with dynamic obstacles that may change unexpectantly and quickly because the workspace is dynamic in real-life applications, and this work is focusing on the dynamic and unknown environment by online updating data in each step toward a specific goal; sensing and avoiding the obstacles coming across its way toward the target by training to take the corrective action for every possible offset is one of the most challenging problems in the field of robotics. This problem is solved by proposing an Artificial Intelligence System (AIS), which works on the behaviour of Intelligent Autonomous Vehicles (IAVs) like humans in recognition, learning, decision making, and action. First, the use of the AIS and some navigation methods based on Artificial Neural Networks (ANNs) to training datasets provided high Mean Square Error (MSE) from training on MATLAB Simulink tool. Standardization techniques were used to improve the performance of results from the training network on MATLAB Simulink. When it comes to knowledge-based systems, ANNs can be well adapted in an appropriate form. The adaption is related to the learning capacity since the network can consider and respond to new constraints and data related to the external environment.
Autonomous robots have been the focus of attention of most researchers, particularly when it is imputed with terms like intelligence and autonomy. The most important challenge encounters autonomous navigation of a mobile robot is established from large amounts of uncertainties that are coupled with natural environment. This includes hazy and cloudy information of the environment. Moreover, continuous and fast changes of the real environment require a fast response from the robot. Many algorithms have been proposed and amongst these, the potential field algorithm is widely used. This work aims at optimizing some parameters involved in the potential field by the use of Non-Dominated Sorting Genetic Algorithm II (NSGA II). This paper takes into account the safety margin around the obstacle along with the size of the robot which also affects its motion during the optimization process in order to ensure the optimal path.
Path planning algorithms are widely used in the field of robotics. Potential field algorithm in particular is widely employed owing to its simple and elegant mathematical model as well as computational efficiency. The primary purpose of getting rid of obstacles and movement towards the goal is met out. However it is also has certain limitations. In order to get rid of these limitations, the field algorithm is used along with a virtual obstacle. In this paper genetic algorithm is used to optimize an important parameter. The proposal convergence is elaborated to emphasize its reliability. The simulation results proved that the results are feasible and valid.
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