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 24 for “"networked control systems"”.
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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
Systems with delays frequently appear in engineering. 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, …
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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
… consensus and gossip algorithms for multi-agent systems are addressed. An agent is a dynamical system that can be fully described by a state-space representation of its dynamics. A multi-agent system is a network of agents whose pattern of interactions or couplings is described by a graph. …
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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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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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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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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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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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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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Cyber-Physical Co-Design of Wireless Control Systems
… co-design approach to design wireless control systems. To enable holistic studies of wireless control systems, we have developed the Wireless Cyber-Physical Simulator (WCPS), an integrated co-simulation environment that integrates Simulink and our implementation of WSANs based on the …
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Localization and Optimization Problems for Camera Networks
In the framework of networked control systems, we focus on networks of autonomous PTZ cameras. A large set of cameras communicating each other through a network is a widely used architecture in application areas like video surveillance, tracking and motion. First, we consider relative localization …
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On stability and controllability of conjunctive Boolean networks
… of the CBN. We then investigate the orbit-controllability and state-controllability of a CBN. We ask the question of how one can steer a CBN to enter any periodic orbit or to reach any final state, from any initial state. Suppose that there is a selected subset of variables whose values can …
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Networked Predictive Control Systems: Control Scheme and Robust Stability
Networked predictive control is a new research method for Networked Control Systems (NCS), which is able to handle network-induced problems such as time-delay, data dropouts, packets disorders, etc. while stabilizing the closed-loop system. This work is an extension and complement of networked …
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Design of the Networked Predictive Control Method for Wired and Wireless Networked Systems
The closed-loop control of processes over networks has in recent years become an increasingly popular research topic. This is a very viable solution for a wide variety of applications due to the rapid developments in communication network technologies and the widespread expansion of network devices …
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Middleware and control of cyber-physical systems: temporal guarantees and hybrid system analysis
… we study two different aspects of cyber-physical systems: mechanisms as well as policy. At the mechanism end we study how to provide a platform for developing cyber-physical systems, and at the policy end we study how to analyze the performance of the overall control system. For the purpose of …
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Distributed Optimization Algorithms for Networked Systems
… wireless communications, optimal control, machine learning, artificial intelligence,</p><p>computational biology, finance and statistics, to name a few. Moreover, distributed</p><p>algorithms avoid the cost and fragility associated with centralized coordination, and</p><p>provide …
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