With the success of Mars Pathfinders Sojourner rover, a new era of planetary exploration has opened, with demand for highly capable mobile robots.mobile communication device is a small robot, originally constructed to allow. Up to now a lot of robots like the NASA Pathfinder were built to fulfil dedicated.Path Finding Mobile Robotics. Laser Range Finder.

A reactive navigation system for an autonomous non-holonomic mobile robot in dynamic environments is presented. A new object detection algorithm and a new reactive collision avoidance method are presented. The sensory perception is based in a laser range finder (LRF) system. Simulation results are presented to verify the effectiveness of the proposed local navigational system in unknown environ...

Many real-world applications require mobile robots to be able to implement 3D perception and mapping. This paper proposes a novel mechanism for augmenting a traditional 2D laser range finder to produce 3D scans. The range data is stored in occupancy lists which are aligned to produce 3D maps by a multi-resolution particle filter. Experimental results are presented to show the feasibility and go...

This paper describes an approach to combining range data from both a set of sonar sensors as well as from a directional laser range finder to efficiently take advantage of the characteristics of both types of devices when exploring and mapping unknown worlds. We call our approach “just in time sensing” because it uses the more accurate but constrained laser range sensor only as needed, based up...

The development of opt electronic technology in the past two decades has intensified research on devices that control and manipulate optical radiation. Acousto-optic devices are based on acousto-optic effects in which the optical medium is altered by the presence of ultrasound. Examples of acousto-optic devices include optical modulators, deflectors, scanners, Q-switches, isolators, and frequen...

In this work we consider a mobile robot with a laser range finder. Our goal is to find the best set of lines from the sequence of points given by a laser scan. We propose a probabilistic method to deal with noisy laser scans, in which the noise is not properly modeled using a Gaussian Distribution. An experimental comparison with a very well known method (SMSM), using a mobile robot simulator a...

The problem of finding a robot's range-to-obstacles is a fundamental one with an elegant solution: the laser range finder (LRF). This work has developed algorithms for replacing a laser with a camera for indoor applications. Our approach uses machine learning algorithms to segment the groundplane from single images flexibly, quickly, and robustly. We then transform those segmentations into lase...