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 20 of 30 for “"mobile sensors"”.
-
Mutual information based tracking with mobile sensors
In order to utilize mobile sensor nodes in a sensing and estimation problem, one must carefully consider the optimal placement of those sensor nodes and simultaneously account for the cost incurred in moving the sensor nodes. We present an approximate dynamic programming approach to a tracking …
-
Using Unrestricted Mobile Sensors to Infer Tapped and Traced User Inputs
… However, many of the real-time environmental sensors on devices are exempt from this requirement. We evaluate the possibility of exploiting this freedom to discretely use these sensors and expand on previous work by developing an application that can use the gyroscope and accelerometer to …
-
Active Reinforcement Learning for the Semantic Segmentation of Images Captured by Mobile Sensors
Neural Networks have been employed to attain acceptable performance on semantic segmentation. To perform well, many supervised learning algorithms require a large amount of annotated data. Furthermore, real-world datasets are frequently severely unbalanced, resulting in poor detection of …
-
Distributed, adaptive deployment for nonholonomic mobile sensor networks : theory and experiments
… and decentralized coverage control for a team of mobile sensors. This new approach assumes nonholonomic sensors rather than the usual holonomic sensors found in the literature. The kinematics of the unicycle model and a nonlinear control law in polar coordinates are used in order to prove the …
-
Design and testing of a sensor middleware for mobile phones
… of the physical world is a challenging task for mobile applications. There is no standardized method of obtaining data from sensors or for distributing those data to applications that use it. Consequently, many researchers in mobile sensors end up writing custom software to interact with their …
-
Motion Coordination and Performance Analysis of Multiple Vehicle Systems
… of an environment monitoring network of mobile sensors to improve the network lifetime and sensing quality. A distributed algorithm is presented that improves the system's performance starting from an initial deployment.
-
Data collection and management of a mobile sensor platform
… of multiple forms of data across a single mobile sensor system. The project will be implemented for three versions of a light-sensing platform, and will cover the different methods of data collection and different types of sensor devices implemented in each version. It will also cover the …
-
A centralized localization algorithm for prolonging the lifetime of wireless sensor networks using particle swarm optimization in the existence of obstacles
… a previous research, a relocating algorithm for mobile sensor network had been introduced and the goal was to save energy and prolong the lifetime of the sensor networks using Particle Swarm Optimization (PSO) where both of sensing radius and travelled distance had been optimized in order to save …
-
Topics in access, storage, and sensor networks
… part of this dissertation, we study networks of mobile sensors. We make progress towards an architecture for disconnected collections of mobile sensors. We propose a new design abstraction called tours which facilitates the combination of mobility and communication into a single design primitive …
-
An unmanned aerial vehicle-based assessment method for quantifying computer vision models
… approach utilizes Unmanned aerial vehicle (UAV) mobile sensors in order to generate the desired distances and orientation from the object being evaluated. Multiple flight sequences are conducted to provide information that is able to define the exact point in which the accuracy starts to decrease …
-
Communication-aware motion planning in mobile networks
… in the area of networked robotic systems and mobile sensor networks. The vision of a mobile sensor network cooperatively learning and adapting in harsh unknown environments to achieve a common goal is closer than ever. In addition to sensing, communication plays a key role in the overall …
-
Demand estimation and fleet management for autonomous mobility on demand systems
… data collection approaches use pervasive fixed sensors which are costly for system-wide coverage. To address this, new frameworks are presented for measuring real-time traffic data using MOD vehicles as mobile sensors. The frameworks are evaluated using hardware and simulation implementations of …
-
Real-Time Spatial Monitoring of Vehicle Vibration Data as a Model for TeleGeoMonitoring Systems
… in real-time, data derived from vehicle-mounted sensors. In response to the concern for vibration related injuries experienced by equipment operators in surface mining and construction operations, the prototype TGM system focuses on spatially monitoring vehicle vibration in real-time. The TGM …
-
System support for robust data collection in wireless sensing systems
… sensing system may suffer issues arising at the sensors, during the data transmission, and during the data access by applications. Due to the unique characteristics of wireless sensing systems, certain conventional solutions for networked systems may not work well with these issues. We developed …
-
Real Time Estimation, Quantization, And Remote Control Of Permanent Magnet Dc Motors
… robustness, and support diagnosis. Quantized sensors are less expensive and remote controlled motors mandate signal quantization. Such limitations on observations introduce challenging issues in motor parameter estimation. This dissertation develops estimators for model parameters of permanent …
-
Model reduction for dynamic sensor steering : a Bayesian approach to inverse problems
In many settings, distributed sensors provide dynamic measurements over a specified time horizon that can be used to reconstruct information such as parameters, states or initial conditions. This estimation task can be posed formally as an inverse problem: given a model and a set of measurements, …
-
Adaptive sampling and forecasting with mobile sensor networks
This thesis addresses planning of mobile sensor networks to extract the best information possible out of the environment to improve the (ensemble) forecast at some verification region in the future. To define the information reward associated with sensing paths, the mutual information is adopted to …
-
Coverage problems in mobile sensing
… problem involves finding an arrangement of sensors that optimizes a coverage metric. In this thesis we examine coverage in the context of three sensing modalities. The literature on the topic has thus far focused largely on coverage problems with the first modality: static event-detection …
-
Decentralized sensor placement and mobile localization on an underwater sensor network with depth adjustment capabilities
… adjusts the depth of a network of underwater sensors to optimize sensing for modeling 3D properties of the water. We prove that the controller converges to a local minimum, and implement the controller on our underwater sensor network, where each node is capable of adjusting its depth. We …
-
Modal Identification Using Smart Mobile Sensing Units
… are identified only at the location of sensors, which are fixed at particular locations on the structure. Increasing the number of sensors in the structure is an alternative to increase the spatial resolution. Unfortunately, this increases the cost of the instrumentation and the data to …
Page 1 of 2