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 42 for “"networked control"”.
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Strategies for wireless networked control systems
Networked Control Systems (NCS) and Wireless Networked Control Systems (WNCS) are control systems where controllers, sensors and final elements of control are connected to a mutual communication network. The inclusion of the network introduces delays and dropouts, which greatly influence the …
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Policies and Mechanisms for Networked Control Systems
"The second mechanism we present is a ""Message Dispatcher"" (MD) layer for information dissemination in wireless vehicle-to-vehicle communication. The MD enables efficient and flexible transmission of data elements between vehicles. It has been implemented in several vehicles at Toyota, and has …
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A Middleware Framework for Networked Control Systems
… we present such a middleware framework for networked control systems. Central to this framework is Etherware, a message oriented component middleware for such systems. We begin with a detailed description of the design and architecture of Etherware, and illustrate Etherware based development …
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Robust Control of Networked Control Systems with Random Communication Delays
Networked control systems (NCSs) refer to a class of systems where the components such as plants, sensors, actuators and controllers are connected via a communication network. This configuration provides several advantages over the traditional point-topoint structure such as modularity, ease of …
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Analysis and implementation of time-delay systems and networked control systems
… The presence of delays makes system analysis and control design much more complicated. Networked control systems where the delays are often random are typical cases of such systems.<br/><br/>For one particular category of time-delays systems, integral processes with dead time (IPDTs), the control …
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Design of Networked Control Systems and Global Web-based Control Laboratory
This thesis mainly focuses on two Internet based control applications. One is a networked control system (NCS) where the control loop is closed through the network. The other is the Networked Control System Laboratory (NCSLab) which is a global web based remote experimentation …
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Consensus Algorithms for Estimation and Discrete Averaging in Networked Control Systems
… infer in a decentralized way properties such as controllability, osservability and other topological features of the network such as its topology. Finally, a fault detection and recovery technique for sensor networks based on the so called motion-probes is presented to address the inherent lack …
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Networked control of aircraft operations at airports and in terminal areas
The goal of this thesis is to develop a control strategy for airport operations that integrates the management of arrivals and departures. The strategy is based on four central ideas: (1) the objective of reducing aircraft flight times, taxi times and fuel burn, (2) the emphasis on developing …
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Stochastic optimal adaptive controller and communication protocol design for networked control systems
<p>"Networked Control System (NCS) is a recent topic of research wherein the feedback control loops are closed through a real-time communication network. Many design challenges surface in such systems due to network imperfections such as random delays, packet losses, quantization effects and so on. …
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Development of Networked Control Technology of Multiple Smart Surveillance Systems for the Internet of Things
… to develop design and implementation of networked control (NCS) techniques of multiple smart surveillance control systems for the internet of things. The prediction method has been popular in single agent control systems due to its capability of actively compensating for network- related …
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Information Theory and Cooperative Control in Networked Multi-Agent Systems with Applications to Smart Grid
… information theoretic aspects of and cooperative control techniques in networked multi-agent systems (NMAS) with communication constraints. In the first part of the dissertation, information theoretic limitations of tracking problems in networked control systems, especially leader-follower systems …
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Communication protocols, queuing and scheduling delay analysis in CANDU SCWR hydrogen co-generation model
Industrial dynamical, Networked Control Systems (NCSs) are controlled over a communication network. We study a continuous-time CANada Deuterium Uranium-Super Critical Water Reactor (CANDU-SCWR) hydrogen plant and a discrete-time controller, sensor and actuator block, that are connected via a …
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Centralized and Decentralized Control With Limited Information
… we address the resource allocation problem for a networked control system. By using a sampled-data system over a bandwidth-limited communication channel as a simplified model, we illustrate the trade-off between the sampling rate and the data accuracy given fixed average throughput, under a linear …
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Adaptive control of a linear system with quantized state observations
The thesis addresses a problem in networked control systems where quantization is a communication constraint. Control design together with parameter estimation algorithms lead to adaptive control techniques. A first order system with unknown parameters is estimated via projection algorithm …
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Controller design for underwater vehicle systems with communication constraints
… pursuit missions preeminent applications of networked control. Motivated by such applications, this thesis presents contributions towards multi-vehicle feedback control in the presence of severe communication constraints. The first major area of work considers the formulation and solution of …
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Optimal Estimation and Control Under Communication Network Constraints
Several new optimal estimation and control problems are introduced with hard constraints on the availability of information or on the number of times the information and/or control may be available. We are motivated by applications in networked control systems, but most of the results derived here …
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Baiting for defense against stealthy attacks on cyber-physical systems
… is detected in near real time. Improvements in networked communication have enabled vast and complex dynamic control systems to exploit networked control schemes to seamlessly integrate parts and processes. These cyber-physical systems exhibit a level of flexibility that was previously …
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Electric ship digital twin : framework for cyber-physical system security
… ship. There is a trend towards increasingly networked sensors and actuators to enable condition monitoring, ensure efficient operation, and allow for autonomy. However, a cyberattack on a networked control system presents not just the possibility of information theft but of physical system …
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Control in the presence of an intelligent jammer with limited actions
… we consider three different problems related to control using communication channel as a medium to transfer control signal in a networked control system. In particular, we are interested in control in the presence of an intelligent and strategic jammer who is maliciously altering the control …
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Limiting controls in vector state space systems
This thesis concerns the control of networked systems under actuation constraints. Focusing mostly on linear vector state space systems, we investigate how limits on the frequency of system actuation affect control policies. Two types of actuation constraints are considered. The first places a …
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