Search for dissertations about: "access control system"
Showing result 1 - 5 of 296 swedish dissertations containing the words access control system.
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1. Dynamic Access Control for Industrial Systems
Abstract : Industrial automation and control systems (IACS) are taking care of our most important infrastructures, providing electricity and clean water, producing medicine and food, along with many other services and products we take for granted. The continuous, safe, and secure operation of such systems are obviously of great importance. READ MORE
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2. Fundamental Limitations of Distributed Feedback Control in Large-Scale Networks
Abstract : Networked systems accomplish global behaviors through local feedback interactions. The purpose of a distributed control design is to select interaction rules and control protocols that achieve desired global control objectives. READ MORE
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3. Architectures and Performance Analysis of Wireless Control Systems
Abstract : Modern industrial control systems use a multitude of spatially distributed sensors and actuators to continuously monitor and control physical processes. Information exchange among control system components is traditionally done through physical wires. READ MORE
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4. On performance limitations of large-scale networks with distributed feedback control
Abstract : We address the question of performance of large-scale networks with distributed feedback control. We consider networked dynamical systems with single and double integrator dynamics, subject to distributed disturbances. We focus on two types of problems. First, we consider problems modeled over regular lattice structures. READ MORE
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5. State-based Channel Access for a Network of Control Systems
Abstract : Wireless networked control systems use shared wireless links to communicate between sensors and controllers, and require a channel access policy to arbitrate access to the links. Existing multiple access protocols perform this role in an agnostic manner, by remaining insular to the applications that run over the network. READ MORE