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 51 for “"Omni-directional"”.
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Design and development of a novel omni-directional platform
… presents the design and development of a unique omni-directional platform known as the Omnibot which was built in the Mechatronic and Robotic Systems Laboratory at UOIT. The Omnibot's layout is novel because its drive axes do not intersect with the geometric center of the body, which is typical …
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Development of a light-weight manipulator system for an omni-directional multi-rotor platform
… six degree-of-freedom manipulator attached to an omni-directional multi-rotor system known as the OmniRaptor. This prototype was developed in order to provide the OmniRaptor with the ability to precisely position a sensor in environments where wind gusts are present. In addition to its ability to …
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Control of Mecanum Wheels in Arbitrary Position, Angle and Number for Complete Omni-Directional Motion
Mecanum wheels are often used in vehicle/robotics applications where agility is a top priority, since they can be used to translate the vehicle in any direction on the ground as well as rotate around any center point. However, the standard placement and orientation of these wheels is quite rigidly …
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Development of an Omni-directional Gait Generator and a Stabilization Feedback Controller for Humanoid Robots
… In this thesis, we propose and demonstrate an omni-directional walking engine that achieves stable walking using feedback from an inertial measurement unit. Our walking engine generates gaits for which the zero moment point is on the center of the supporting foot. The mechanical structure of …
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Design and development of an autonomous navigation system for an omni-directional four-wheeled mobile robot
A navigation system developed for an omni-directional wheeled mobile robot, called the Omnibot, is presented. This system is developed to enable the Omnibot to autonomously navigate, in a collision-free manner, along predefined paths in indoor structured office or factory-like environments. The …
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An Evaluation of an Omni- Directional (Fisheye) Vision Sensor for Estimating the Pose of an Object,
… view are presented in this work. In the first an omni-directional lens is mounted on a single digital camera. In the second three perspective digital cameras are combined into a unique assembly (placed in row with known position to each another) to increase the sensing capabilities of the camera …
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Exploration of robotic-wheel technology for enhanced urban mobility and city scale omni-directional personal transportation
… This thesis explores novel designs for omni-directional motion in a mobility scooter, car and bus with the aim of increasing personal mobility and freedom. What links these designs is the use of split active caster wheel robot technology. In the first section, societal and technological …
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In-situ monitoring of an Omni directional roof vent on a low slope single ply roof to identify most efficient porous underlayment for maximum pressure propagation
… for the installation of recently developed omni-directional roof vent on low slope membrane roofing systems. The newly designed and patented low-pressure roof vent works on Bernoulli and Venturi air flow principals and helps prevent uplift and detachment of the roofing membrane during storm …
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A statistical ultra wideband indoor channel model and the effects of antenna directivity on multipath delay spread and path loss in ultra wideband indoor channels
… channel were analyzed extensively for various omni-directional and directional antenna combinations. A statistical model of the path loss in the channel is presented, where the parameters in the model (i.e., path loss exponent and shadow fading statistics) are dependent on the particular Tx/Rx …
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Link Establishment in Ad Hoc Networks Using Smart Antennas
… hoc networks have been designed for nodes using omni directional antennas. Through the use of directional antennas, it is possible to obtain higher efficiency. In this thesis we investigate the impact of these antennas on aggregate throughput and end-to-end delay. The use of omni-directional …
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The guided samara : design and development of a controllable single-bladed autorotating vehicle
… proposed control mechanisms grant the vehicle omni-directional glide slope control during autorotating descent. This is the first documented effort to develop an actively controlled vehicle of this form factor. The research presented in this thesis includes the conceptual design of the vehicle …
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Design and Manufacturing of a Mecanum Wheel for the Magnetic Climbing Robot
… by Helical Robotics. Mecanum Wheel is a complex "Omni-Directional" wheel that currently contains several drawbacks. The drawbacks include design, usage of hobby grade material, bumps in rollers, etc. A comprehensive design of the Mecanum wheel is being presented using Computer Aid Software, CAD …
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Coherent matter waves near surfaces
… and test of microscopic atom optical tools. An omni-directional magnetic matter wave guide and novel types of magneto-electric trapping potentials are investigated experimentally with cold thermal lithium atoms. During the construction of a new setup working with ultracold rubidium atoms, a …
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Design and measurement of antennas within lossy materials for IoT applications
… of improving the radiation efficiency of both directional and omni-directional antennas placed near metal and encapsulated in resin, yielding up to 18% improvement in radiation efficiency.
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Design and control of a mobile light ballet platform
… be placed on a mobile platform driven by three omni-directional wheels. The platform is controlled by an Android application, which communicates through Bluetooth and an Arduino Uno with the motor's controllers. The platform is designed to operate either through batteries, or through a …
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Smart Environment Based On Real-Time Human Position Tracking For Remote Presence And Collaboration
… information into virtual models as avatars using omni-directional cameras installed in the physical space. These models were created as part of the Mirror Worlds project. The project infrastructure is funded by National Science Foundation. This infrastructure enables users to connect virtual and …
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An Experimental Method to Calculate Coefficient of Friction in Mecanum Wheel Rollers and Cost Analysis Using DFMA Techniques
<p>Mecanum wheel is a special kind of omni-directional wheel which is designed for robot vehicles. The purpose of this thesis is to work on geometry and working of Mecanum wheel rollers and to conduct experiments on these rollers to find its values of coefficient of friction in different …
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"""Agilos"": A Middleware Control Architecture for Application -Aware Quality of Service Adaptations"
… the Agilos architecture, and validated it with OmniTrack, a client-server based omni-directional visual tracking system. In this work, we show that the Agilos architecture effectively achieves the best possible performance with respect to the most critical QoS parameter, the tracking precision, …
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The phase separation inlet for droplets, ice residuals, and interstitial aerosols
… (SPIDER) - is described. SPIDER combines an omni-directional inlet, a Large-Pumped Counterflow Virtual Impactor (L-PCVI), a flow tube as evaporation chamber, and a Pumped Counterflow Virtual Impactor (PCVI) to separate droplets, ice crystals, and interstitial aerosols for simultaneous …
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