In this paper, a new method was proposed for the navigation of a mobile robot in an unknown dynamic environment. The robot could detect only a limited radius of its surrounding with its sensors and it went on the shortest null space (SNS) toward the goal. In the case of no obstacle, SNS was a direct path from the robot to goal; however, in the presence of obstacles, SNS was a space around the r...

An autonomous mobile robot must be capable of rationally selecting tasks to perform. A task is any robotic action or series of actions to achieve some state or goal. Rule-based systems provide an intuitive means of encoding system knowledge into a set of rules that guide the robot. The dynamic nature of the world is seldom consistent enough to support the rigidity of rules. A decision maker is ...

This study aimed to explore non-verbal executive processes in simultaneous interpreters. Simultaneous interpreters, bilinguals without any training in simultaneous interpreting, and control monolinguals performed the Wisconsin card sorting task (WCST; Experiment 1) and the Simon task (Experiment 2). Performance on WCST was thought to index cognitive flexibility while Simon task performance was ...

A modular reconfigurable robot consists of a collection of individual link and joint components that can be assembled into a number of different robot geometries. Compared to a conventional industrial robot with fixed geometry, such a system can provide flexibility to the user to cope with a wide spectrum of tasks through proper selection and reconfiguration of a large inventory of functional c...

this article presents an implementation of a reinforcement learning (rl) method for a snake like robot navigation. the paper starts with developing kinematics and dynamics model of a snake robot in serpentine locomotion followed by performing simulation and finishes with actual experimentation. first, gibbs-appell's method is used to obtain the robot dynamics. the robot is also modeled in simme...

The paper presents a new method for online identification of pay-loads for a two-link flexible robot. The method benefits from the close correspondence between parameters of a discrete-time model represented by means of the Delta-Operator, and those of the underlying continuous-time model. Although the applied principle might be general in nature, the paper is applied to the well-known problem ...

A novel method is presented for formation control of a group of autonomous mobile robots using parametric and implicit descriptions of the desired formation. Shape formation is controlled by using potential fields generated from Implicit Polynomial (IP) representations and the control for keeping the desired shape is designed using Elliptical Fourier Descriptors (EFD). Coordination of the robot...

The paper proposes a structure for open, hierarchical, multi-device controllers. The proposed structure takes into account that the system may contain several robots of different type, a certain number of cooperating devices, diverse sensors and also the fact that the task, the system has to execute, and the number and type of its components may vary considerably over time. The concept has been...

This article is aimed to give a general idea of how to organize robot control with a distributed network of embedded devices. It is an attempt to formulate simple concepts that will allow easier cooperation for team members during development. Suggested approach when properly described, understood and implemented is expected to form a good platform for concurrent individual software and hardwar...

When robot researchers talk about robot middlewares, inevitably Player will enter the discussion. This piece of software and its related tools have become one of the most popular software tools in robotics research. Its range of hardware support and the flexibility it offers users, as well as its ease of use and shallow learning curve, have ensured its success. It is now over a decade since Pla...