Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 132 for “"obstacle avoidance"”.
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Obstacle avoidance robot applying fuzzy control system
The use of energy saving glass has become very popular in the modern day building design. This energy saving property is achieved by applying a very thin tin oxide (SnO2) coating on one side of the glass. This coating can provide good thermal insulation to the buildings by blocking infrared rays …
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Obstacle Avoidance for Small Unmanned Air Vehicles
… low altitude surveillance flights where unknown obstacles can be encountered. These UAVs can be given the capability to navigate in uncertain environments if obstacles are identified. This research presents an obstacle avoidance system for small UAVs. First, a mission waypoint path is created …
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Feature-relative real-time obstacle avoidance and mapping
… Localization and Mapping (SLAM) module, and obstacle avoidance using information from mapped features. The resulting system performs autonomous feature-relative Real-time Obstacle Avoidance and Mapping (ROAM) with laser or sonar range sensors, and results are shown for wide-beam sonar. This …
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High-speed autonomous obstacle avoidance with pushbroom stereo
… only onboard sensing and computation, we perform obstacle detection, planning, and feedback control in realtime. We introduce a novel stereo vision algorithm, pushbroom stereo, capable of detecting obstacles at 120 frames per second without overburdening our lightweight processors. Our use of …
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Manipulator control with obstacle avoidance using local guidance
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
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Dynamic Obstacle Avoidance on a Self-balancing Robot Platform
… this work specifically focuses upon is dynamic obstacle avoidance by a robotic unit that is guided by a human user. Dynamic obstacles are objects that move in the environment independently from the robot and can potentially raise safety concerns for the robotic platform. In order to detect these …
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Development of a vehicle dynamics controller for obstacle avoidance
… Longitudinal collision warning and collision avoidance systems are starting to appear on production cars to assist drivers when required to stop in an emergency. Many luxury cars are also equipped with stability augmentation systems that prevent the car from spinning out of control during …
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Obstacle Avoidance and Path Traversal Using Interactive Machine Learning
… can cause the robot to automatically perform obstacle avoidance. This definition system uses interactive machine learning to ensure that the obstacle avoidance is both easy for a human operator to use and can perform well in different environments. Initial, real world tests show that system is …
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Mobile Robot Obstacle Avoidance based on Deep Reinforcement Learning
Obstacle avoidance is one of the core problems in the field of autonomous navigation. An obstacle avoidance approach is developed for the navigation task of a reconfigurable multi-robot system named STORM, which stands for Self-configurable and Transformable Omni-Directional Robotic Modules. …
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Sensor Fusion and Obstacle Avoidance for an Unmanned Ground Vehicle
… This path planning algorithm incorporates obstacle avoidance constraints and provides a set of waypoints to be followed by the unmanned ground vehicle. A waypoint controller is designed and implemented to enable the vehicle to follow the waypoints from the path planner. Open-loop …
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Obstacle Avoidance and Feature Point Navigation for an Office Delivery Robot
Made available in DSpace on 2009-06-01T16:05:17Z (GMT). No. of bitstreams: 3 license.txt: 4062 bytes, checksum: a9d28bf87b1566e87fb72be4a095b8a6 (MD5) pepich_matthew.pdf: 1870949 bytes, checksum: fd40063fd6572ef237706424c5b8eb87 (MD5) 1_pepich_matthew.pdf: 1870903 bytes, checksum: …
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Vision-Based Obstacle Avoidance for Multiple Vehicles Performing Time-Critical Missions
This dissertation discusses vision-based static obstacle avoidance for a fleet of nonholonomic robots tasked to arrive at a final destination simultaneously. Path generation for each vehicle is computed using a single polynomial function that incorporates the vehicle constraints on velocity and …
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A sensor-based obstacle avoidance system for an under-canopy autonomous aircraft
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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Path planning and obstacle avoidance for a robot with large degree of redundancy
An algorithm to allow a redundant robot to avoid obstacles in its workspace is proposed. The task of path planning is formulated as a sequence of nonlinear programming problems. For each problem, the objective is to minimize the distance between the current location of the end-effector and some …
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The planning of visually guided arm movements : feedback perturbation and obstacle avoidance studies
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Brain and Cognitive Sciences, 1996.
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A simulator for autonomous and semiautonomous controllers performing obstacle avoidance in the presence of delay
… in the study of various controllers performing obstacle avoidance tasks in the presence of delay. The simulator is divided into functional blocks, each of which is described in detail. Several controllers were developed and their performance analyzed using the simulator. These controllers …
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The Ant and the Trap: Evolution of Ant-Inspired Obstacle Avoidance in a Multi-Agent Robotic System
… operate outside of a dedicated lab environment. Obstacle avoidance has long been a necessary component of robot systems. Avoiding collisions is also a difficult problem and has been studied for many years. As part of moving the iAnt further towards the real-world we needed a method of obstacle …
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A preliminary study on path planning and obstacle avoidance for construction equipment based on real-time spatial models
On obstacle-cluttered construction sites where heavy equipment is in use, safety and productivity issues are major concerns. Efficient and effective algorithms for obstacle avoidance and path planning, based on real-time three dimensional spatial modeling, have the potential not only to obviate …
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The Design, development, and analysis of a wearable, multi-modal information presentation device to aid astronauts in obstacle avoidance during surface exploration
… information presentation device that can aid in obstacle avoidance during surface exploration and way-finding. Multi-modal displays are being considered as cues to multiple sensory modalities enhance cognitive processing through taking advantage of multiple sensory resources, and are believed to …
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