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 19 of 19 for “"event-triggered"”.
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Event-triggered near optimal adaptive control of interconnected systems
… motivated by the fact that aperiodic event sampling saves network resources while ensuring system stability, a suite of novel event-sampled distributed near-optimal adaptive control schemes are introduced for uncertain linear and affine nonlinear interconnected systems in a …
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Observer-based event-triggered and set-theoretic neuro-adaptive controls for constrained uncertain systems
<p>"In this study, several new observer-based event-triggered and set-theoretic control schemes are presented to advance the state of the art in neuro-adaptive controls. In the first part, six new event-triggered neuro-adaptive control (ETNAC) schemes are presented for uncertain linear systems. …
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Optimal sampling and switching policies for linear stochastic systems
… of the system. This calls for development of event-triggered sampling policies. In this thesis, we study the optimal event-triggered sampling policies under a constraint on the frequency of sampling. We first investigate the optimal sampling policies to minimize the estimation error over the …
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Building blocks for co-design of controllers and implementation platforms in embedded systems
… communicate using a hybrid (i.e., time- and event-triggered) communication protocol like FlexRay (which is commonly used in automotive architectures). Mapping all control messages to time-triggered slots results in deterministic timing and hence good control performance, but time-triggered …
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From Passive Data Collection to Sensor-Level Intelligence
… but also when transmission is necessary, forming event-triggered communication strategies that reduce overhead while maintaining accuracy and timeliness. The research advances two complementary directions. The first leverages compact TinyML models for on-device event detection with emphasis on …
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Motion control and real-time systems: an approach to trajectory rebuilding in non-deterministic networks
… of trajectory reconstruction in the case of an event-triggered communication system is faced. The most important feature that a real-time communication system must have is the preservation of the following temporal and spatial properties: absolute temporal consistency, relative temporal …
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Wireless sensor and actor networks (WSANs) : αλγόριθμοι αναγνώρισης γεγονότων βασισμένων σε τεχνικές ασαφούς λογικής με πρόβλεψη για απαίτηση απόκρισης πραγματικού χρόνου
… την κατανεμημένη υλοποίηση τέτοιων συστημάτων. Η event triggered στρατηγική εκτέλεσης συστημάτων ασαφούς λογικής σχεδιάζεται και υλοποιείται στη συγκεκριμένη διατριβή προκειμένου να επιτύχει βέλτιστη χρήση του υπολογιστικού κόστους του αλγορίθμου ασαφούς συμπερασμού. Η κατανομή των εργασιών μεταξύ …
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Adaptive consensus based formation control of unmanned vehicles
… the design of a distributed consensus-based event-triggered formation control of networked mobile robots using NN in the presence of uncertain robot dynamics to minimize communication. All these papers assume state availability.</p><p>Finally, the fourth paper extends the consensus effort by …
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Formation Control and Reconfiguration Strategy of Multi-Agent Systems
… mappings based on the screening group. An event-triggered probability-driven control scheme is also investigated for a group of elliptical agents to achieve a predefined formation. The agents are assumed to have the same dynamics, and the control law for each agent is only updated at its …
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Quality of Service in Vehicular Ad Hoc Networks: Methodical Evaluation and Enhancements for ITS-G5
… control becomes crucial to preserve QoS by preventing high latencies or foiled information dissemination. The developed VANET simulation model, featuring an elaborated ITS-G5 protocol stack, allows investigation of QoS methodically. It also considers the characteristics of ITS-G5 radios such …
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Prefetching for complex memory access patterns
… for the configurable graph prefetcher to make an event-triggered programmable prefetcher, using a set of a set of very small micro-controller-sized programmable prefetch units (PPUs) to cover a wide set of workloads. I do this by developing a highly parallel programming model that can be used to …
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A Narrative Analysis Using Multiple Case Studies of Nursing Graduates Who Overcame Academic Adversity
… cases a cascade of challenges occurred as one event triggered another, forcing students to deal simultaneously with multiple and varied problems. Methods used by nursing students in overcoming adversity followed two separate avenues, intertwined to facilitate each graduate‟s ability to overcome …
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Low altitude unmanned aerial vehicles (UAVs) in wireless networks
… IoT devices generate bursty, time-critical, and event-triggered traffic, while a UAV is deployed for aggregating and relaying sensed data to the base station. Conventional transmission schemes, predicated on overall average traffic rates, tend to overburden network resources during periods of …
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Low altitude unmanned aerial vehicles (UAVs) in wireless networks
… IoT devices generate bursty, time-critical, and event-triggered traffic, while a UAV is deployed for aggregating and relaying sensed data to the base station. Conventional transmission schemes, predicated on overall average traffic rates, tend to overburden network resources during periods of …
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Estimation and stability of nonlinear control systems under intermittent information with applications to multi-agent robotics
… are executed in a periodic fashion, with the event-triggered paradigm. Building on the small gain theorem, we develop input-output triggered control algorithms yielding stable closed-loop systems. In other words, based on the currently available (but outdated) measurements of the outputs and …
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Reducing complexity in developing wireless sensor network systems using model-driven development
… types such as Sense-Forward (SF), and Event-Triggered (ET); besides providing a set of node-level and in-network data processing tasks. The current SenNet version is configured to generate nesC code, yet SenNet can be set up to produce and generate any programming language such as Java, …
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Redefining a place to live: Decisions, planning processes, and outcomes of resettlement after disasters
… First, the research suggests a new notion of “event-triggered resettlement” that has characteristics distinctive from both forced and voluntary resettlement. Second, it contributes to add details to two well-known models of post-disaster housing and resettlement. And finally, the research …
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Parsimonious, Risk-Aware, and Resilient Multi-Robot Coordination
… of the robots and the targets. We propose a self-triggered communication strategy in which a robot communicates its own position with its neighbors only when a certain set of conditions are violated. We prove that this strategy converges to the optimal robot positions for tracking a single target …
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Essays on the Economics of Unhealthy Behaviors
… behaviors as a consequence of different sudden events perceived by individuals. The first one is the doubtlessly pure exogenous shock caused by an unexpected terrorist attack, Boston Marathon Bombings. The second one is the turmoil caused by the Great Recession of 2008, which is the most serious …