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.
Results
Showing 1 to 15 of 15 for “"ultrasonic sensors"”.
-
Multimodal speech recognition with ultrasonic sensors
Ultrasonic sensing of articulator movement is an area of multimodal speech recognition that has not been researched extensively. The widely-researched audio-visual speech recognition (AVSR), which relies upon video data, is awkwardly high-maintenance in its setup and data collection process, as …
-
Identifying Common Ultrasonic Predictive Failure Signatures in Bearing Elements for the Development of an Automated Condition Based Ultrasonic Monitoring Controller.
… thesis presents a new method for Condition Based Ultrasonic Monitoring to be applied in conjunction with a lubrication distribution controller. As part of this thesis, algorithms were developed using ultrasonic sensors to control the application of lubrication to machinery. The controller sensors …
-
An ultrasonic compass for context-aware mobile applications
… 3-DOF orientation from an array of well placed ultrasonic sensors operating in the Cricket system. I design and implement a prototype of this Cricket Compass using a combination of hardware and software and demonstrate end-to-end functionality of the system.
-
Robot navigation using ultrasonic feedback
… data with a given map of the environment. ANT's ultrasonic sensors were used to sample the surroundings continuously, and this information was combined with dead reckoning data to build a two-dimensional map of the environment. Borenstein's Histogramic In-Motion Mapping technique was used to …
-
Vision based 3D obstacle detection using a single camera for robots/UAVs
… 2D motion of the ground robots and with active sensors e.g Laser range finders, Ultrasonic sensors, SONAR, RADAR etc. The passive camera based research has mostly been done either using triangulation/stereo vision (using more than one camera), or, developing an expectation map pre-hand, of the …
-
Development of a real-time ultrasonic sensing system for automated and robotic welding
… involve not only the development of adequate sensors for seam tracking and joint recognition but also developments of overall machines with a level of artificial intelligence sufficient for automated welding. The development of such a prototype system which utilizes a manipulator arm, …
-
Design and Construction of a Fully Submerged Hydrofoil Drone Boat
… control, the watercraft is equipped with two ultrasonic sensors for height sensing, with room for expansion, and an inertial measurement unit.
-
Automatic Ultrasonic Headway Control for a Scaled Robotic Car
… automatic headway control system that utilized ultrasonic sensors. This control system was intended to automatically maintain headway distance in an effort to create an adaptive cruise control system for this scale model vehicle. Implementation of such systems could conceivably reduce driver …
-
Navigation with Local Sensors in Surgical Robotics
… introduction of navigation cycles on novel local sensors. Currently industrial (and surgical) robotic systems employ almost exclusively static global maps -- if any -- for navigation and planning purposes. Additional information -- intra-process, spatial, current, and persistent sensor data -- is …
-
Non-speech Acoustic Event Detection Using Multimodal Information
… pattern for feature extraction for seismic sensors, and an exemplar selection framework for acoustic sensors. We also propose using temporal pattens from ultrasonic sensors. We perform decision and feature fusion to combine the information from all three modalities. From experimental …
-
In-situ cure monitoring and characterization of graphite/epoxy composites using fiber optics and ultrasonics
… fully cured and high-quality composites. In-situ sensors capable of monitoring the change of physical and chemical properties during the cure process are therefore desirable. The major aspects of research in this thesis are as follows: The chemical kinetic and rheological properties of AS4/3501-6 …
-
An Investigation of Higher Capacity Urban Freight Vehicles
… cyclist detection system fusing cameras and ultrasonic sensors, and increased development of the manoeuvrability models to more accurately reflect real driving.
-
Development of hay yield monitoring systems
… management, involving the use of LiDAR, ultrasonic sensors, and UAV-based remote sensing. It includes detailed analysis, data processing methodologies, predictive model evaluation, and key variable identification. The study is structured into chapters, each addressing a specific aspect of …
-
Cooperative mobile robot and manipulator system for autonomous manufacturing
… the mobile robot. One positioning approach is ultrasonic sensors fused with an inertial measurement unit (IMU) by using the filtered extended Kalman filter (EKF) algorithm and another positioning approach is vision-based positioning by identifying ArUco marker. Crucially, to ensure the …
-
Bezdrátová čidla pro měření hladiny vody
Diplomová práce se zabývá návrhem a realizací zařízení na měření hladiny vody. Tato data jsou bezdrátově odesílána do 500m vzdálené stanice. Práce se postupně zabývá možnými způsoby řešení, na základě kterých je vybráno řešení pro realizaci. V navazující části je popsán podrobný postup realizace. …