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.
Results
Showing 1 to 20 of 52 for “"Control logic"”.
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Design of the control logic for StarT-Voyager
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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Discrete Event Control in Manufacturing Automation
… supporting software package for supervisory control logic design and verification; Open HMI Builder, an easy-use GUI development tool; and enhanced simulation tool with Simulink using IEC61499. All these tools can help academical users in various fields for system design and modeling.
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An integrated design, simulation and programming environment for modular manufacturing machine systems
… then seamlessly transferred to the distributed control system environment for controlling real machines/devices. lEC 61131 Part 3, as the widely accepted international programming standard, is identified as the most suitable neutral modelling and programming languages for describing the control …
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Autonomous Finite Capacity Scheduling using Biological Control Principles
… mechanisms are developed based on centralised control architecture in which all of the knowledge base and databases are modelled at the same location. This control architecture has difficulty in handling complex manufacturing systems that require knowledge and data at different locations. …
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Modeling of a Hybrid-Electric System and Design of Control Laws for Hybrid-Electric Urban Air Mobility Power Plants
… hybrid-electric systems and the development of control logic specifically for AAM aircraft. This thesis focusses on the modeling and design of control logic for hybrid-electric power plants for Advanced Air Mobility (AAM) applications. The developed model can assist in designing and optimizing …
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Reasoning under partial observability in heterogeneous networked systems
… coordinated functionality, such as sensing, control, data processing, and access enforcement. Many everyday services rely on such systems, including building automation, cloud applications, industrial monitoring, and connected medical or sensor devices. In these systems, overall behavior is …
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Reliability and Security Engine: A Processor-Level Framework for Application -Aware Detection and Recovery
… a duplication of all instructions. We detect all control logic errors that affect the instruction wakeup and scheduling mechanism. The combined hardware overhead due to the framework and modules is less than 10%. Our ongoing research is targeted towards implementing the framework and the modules …
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Modeling of Airport Operations Using an Object-Oriented Approach
… time, and animation. Instead of using built-in control logic, the framework adapts an open system policy which gives the flexibility to the end users to incorporate the user-preferred control logic into the end models. Another purpose in this research is to provide a future mechanism to study …
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Optimization Techniques for Performance and Power Dissipation in Test and Validation
… during shift is reduced by efficiently adding control logic to the design. Test quality is studied by determining the sensitization characteristics of a path to be tested. The path delay fault models have been used for the purpose of studying this problem. Another important aspect in chip …
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Stability of non-diagonalizable switched linear systems on time scales.
… a dynamical system is coupled with supervisory control logic that can abruptly change the system's operating mode, such as in the transmission of a vehicle or on computer-controlled real-time networks. This coupling of a dynamical system with discrete logic is difficult to model on standard time …
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An object-oriented simulation-based method for emulation development for testing shop control software
… behavior of a production facility as seen by the control program. Emulation has been used as a tool for dynamic, off-line testing of control software for automated manufacturing systems. However, research efforts in emulation have focused mainly on controllers for equipment, AGVS, and …
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Variable Structure and Ultimate Boundedness control and stabilization of flexible robotic systems
In this thesis we study the control of two link light weight elastic manipulator in the presence of uncertainty. The control of flexible robotic arm with uncertainty such as variable payload, joint angle frictional torque etc., is an interesting and important problem; Here we consider control of …
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Securing the Public Cloud: Host-Obscure Computing with Secure Enclaves
… sensitive information, including program flow control logic. It presents a proof of concept for a secure cloud computing service using confidential computing technology, cryptography, and an emulator that runs in a secure memory space. It then provides an analysis of its effectiveness at …
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Emulation framework for testing higher level control methodology
… mechanical plant and equipment, but not the control logic required to drive it. This thesis investigates the utility of providing a computer representation of the functional elements to be controlled by system control programs. These representations or "emulators" mimic the behavior of the …
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Asynchronous Data Processing Platforms for Energy Efficiency, Performance, and Scalability
… the asynchronous circuit using NULL Convention Logic (NCL) and multi-threshold CMOS techniques for energy efficiency and throughput optimization in digital signal processing circuits. Parallel homogeneous and heterogeneous platforms implementing adaptive dynamic voltage scaling (DVS) based on …
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Unlocking DC throughput capacity through improved flow
… building is influenced by batch size and release logic, which have not evolved to keep up with changing demand. Under the current flow of work, associates cannot stay busy working at the same processing (packing) station. Unstaffed processing stations are used as buffers, and associates move to …
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A generalized framework for complex system design and management
… to many contexts, is that the time and logical domains have not been explicitly identified and characterized in distinction. When the logical view is combined with the chronological view, the resulting process becomes application specific. When these are characterized in distinction, the …
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Energy-efficient analog-to-digital conversion for ultra-wideband radio
… provide more than 3x energy savings. Custom control logic, a new capacitive DAC, and a hierarchical sampling network enable the high-speed operation. Finally, only a small amount of redundancy, with negligible power penalty, dramatically improves the yield of the highly parallel ADC in deep …
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Gearshift Analysis for an Electric Vehicle with a Novel Synchronizer Mechanism
… riding comfort, meanwhile, simplify the shift control logic for EVs with the multi-gear transmissions. A detailed dynamic model of the unilateral Harpoon shift is built to study the engaging performance of the proposed synchronizer. Besides, to investigate the powertrain transients, an original …
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A Novel Inverter Based Resource Control Strategy to Facilitate Utility-Scale Renewable Integration and Retain Existing Transmission Protection Infrastructure
… of a fault. This thesis proposes a novel control strategy for utility-scale inverter-based resources designed to ensure proper operation of the existing transmission-line protection infrastructure. The fault response of an IBR depends on its control logic which varies between …
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