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 17 of 17 for “"distributed sensor network"”.
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Distributed Sensor Network Localization: From Geometric Linearization to Collaborative Learning
L'abstract è presente nell'allegato / the abstract is in the attachment
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Distributed sensor network for sensing educational interaction in early childhood classrooms
… measure social and classroom interaction using a distributed sensor network. Unobtrusive sensors measure proximity between each node in a dynamic range-based mesh network and establish interaction context through motion and ambient sound data. In this system, I designed a distributed sensor …
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Mikrokontroller alapú szenzorállomások kommunikációs lehetőségeinek (WiFi) fejlesztése DSN-PC-hez
Szakdolgozatomban az ún. „Distributed Sensor Network for Prediction Calculations” (DSNPC) elnevezésű időjárási paramétereket mérő és numerikus előrejelző számításokat is végző szenzorhálózat állomásainak egymás közti vezeték nélküli kommunikációjával (WiFi) és annak fejlesztésében elért eredményeim …
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Mobile robot control and navigation in public spaces
… Our solutions facilitates the synergy of a distributed sensor network and a central computer. A distributed sensor network provides multi-view measurements without occlusion, and a central computer can use these data to estimate the state of everything in the environment in real-time. A …
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Sensei : sensing educational interaction
… learning in an early-childhood classroom using a distributed sensor network. Our unobtrusive sensors measure proximity between each node in a dynamic range-based mesh network. The sensors can be worn in the shoes, attached to selected landmarks in the classroom, and placed on lessons. This data, …
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Development of a remote IoT laboratory for cyber physical systems
… and web-based user control to create a distributed multi-user interface. Second, the laboratory is configured for a distributed sensor network with a single-user interface. The interconnected, real time, and smart system with embedded sensors and processors is used to provide data for …
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Parasitic mobility for sensate media
Distributed sensor networks offer many new capabilities for monitoring environments with applicability to medical, industrial, military, anthropological, and experiential fields. By making such systems mobile, we increase the application-space for the distributed sensor network mainly by providing …
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Visualizing models driven by real-time, sensor-based data : a new way to experience the inner workings of ecosystems
… models of ecosystem processes using realtime, sensor-based data. The product of this thesis, EcoFlux, provides a new way for people to experience the inner working of ecosystems by using augmented or virtual reality to explore unseen ecological processes. EcoFlux builds on the existing MIT …
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SENSPECTRA : an elastic, strain-aware physical modeling interface
… of structural strain. The system functions as a distributed sensor network consisting of nodes, embedded with computational capabilities and a full spectrum LED, which communicate to neighbor nodes to determine a network topology through a system of flexible joints. Each joint, while serving as a …
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Sensor technology and applications to a real-time monitoring system
… It is believed that with the implementation of a distributed sensor network, many of these unfortunate events could have been avoided. The ultimate goal in applying distributed sensors is for structures to combine mechanical systems and computer processing to allow them to adapt themselves in …
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Intrinsic Fabry-Perot Interferometric Fiber Sensor Based on Ultra-Short Bragg Gratings for Quasi-Distributed Strain and Temperature Measurements
… life-cycle costs and improve reliability. The distributed strain and temperature sensing is highly desired in large structures where strain and temperature at over thousand points need to be measured simultaneously. It is difficult to carry out this task using conventional electrical strain …
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Vibrations of mechanical structures: source localization and nonlinear eigenvalue problems for mode calculation
… The first topic is the use of a spatially distributed sensor network for localization of vibration events. I use a received signal strength (RSS) framework that presumes exponential energy decay with distance to the source. I derive the Cramér-Rao bound (CRB) for this parameter estimation …
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Distributed Location Estimation of a Moving Target Characterized by a Spatial Poisson Field
Wireless Sensor Networks (WSNs) are traditionally employed to collect spatial and temporal data characterizing various events. These data are then used to solve inference problems such as object detection, counting, classification, estimation and tracking. Distributed solutions provided by WSNs are …
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Laser Remote Sensing for Environmental Monitoring
… Bragg gratings (FBGs). Applications of these sensors are usually limited to temperature and stain monitoring. By using a methane catalyst which transfers the ambient methane into heat, FBG sensors become sensitive to methane. The sensitivity can be improved if the sensing FBG is interrogated …
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Development of Integrated "Chip-Scale" Active Antennas for Wireless Applications
… various applications. Such applications include networked wireless sensor nodes and wireless local area data networks (WLANs). Integrated microstrip antennas coupled directly to the RF electronics, offer potential advantages of low cost, reduced parasitics, simplified assembly and design …
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Friendsourcing to detect network manipulation
… to other hosts and to the middle nodes of the network (routers). An example of the former is the spread of viruses and an example of the latter is congestion caused by packet floods. However, in recent years, we have seen a rising number of instances in which hosts seek to defend themselves …
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Sensor Networks: Studies on the Variance of Estimation, Improving Event/Anomaly Detection, and Sensor Reduction Techniques Using Probabilistic Models
Sensor network performance is governed by the physical placement of sensors and their geometric relationship to the events they measure. To illustrate this, the entirety of this thesis covers the following interconnected subjects: 1) graphical analysis of the variance of the estimation error caused …