Sökning: "Real-time control systems"

Visar resultat 1 - 5 av 344 avhandlingar innehållade orden Real-time control systems.

1. 1. Field Programmable Gate Arrays and Reconfigurable Computing in Automatic Control

   Författare :Carl Wilhelmsson; Förbränningsmotorer; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; systems analysis; FPGA; Field Programmable Gate Array; programming; Compendex: Field programmable gate arrays FPGA ; programming environments; computer science; programmable controllers; observers; adaptive control; modelling; closed loop systems; logic CAD; control systems; reconfigurable architectures; field programmable gate arrays; Computer Programming; telecommunication control; Control system applications; Real time control; Computer control systems; Control systems; Engine Control; Heat release analysis; Cylinder pressure; power-train control; Vehicle control; High speed; Rapid Prototyping; Combustion control; Automotive control; Control application; High frequency; Computer control; Feedback Control; Closed loop systems; Control; Reconfigurable computing; Reconfigurable hardware; VLSI; Closed loop control; programmable logic arrays; Automatic Control; System on Chip SoC ;

   Sammanfattning : New combustion engine principles increase the demands on feedback combustion control, at the same time economical considerations currently enforce the usage of low-end control hardware limiting implementation possibilities. Significant development is simultaneously and continuously carried out within the field of Field Programmable Gate Arrays (FPGAs). LÄS MER

3. 2. Automatic memory management for flexible real-time systems

   Författare :Sven Robertz; Institutionen för datavetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; feedback scheduling; embedded systems; real-time; memory management; garbage collection; numerical analysis; systems; control; Datalogi; numerisk analys; system; kontroll;

   Sammanfattning : In a flexible real-time system, the constraints in available CPU time and memory lead to resource management problems, which must be handled carefully in order to maximize quality of service while avoiding overload. Managing CPU time -- scheduling -- is well studied and dynamic scheduling is widely accepted in the real-time industry. LÄS MER

4. 3. On robust and optimal control : with real time aspects

   Författare :Torbjörn Norlander; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

   Sammanfattning : This thesis deals with several issues in realistic design of control systems, both from a practical and a theoretical point of view. This is done in three papers which are preceded by an introduction and a short discussion on future research on time-varying delays. The first paper discusses the importance of reliable sensors in control systems. LÄS MER

5. 4. Tailoring native compilation of Java for real-time systems

   Författare :Anders Nilsson; Institutionen för datavetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; systems; numerical analysis; Java; embedded systems; real-time; aspect-oriented; object-oriented; Computer science; compiler construction; control; Datalogi; numerisk analys; system; kontroll;

   Sammanfattning : Our everyday appliances ranging from toys to vehicles, as well as the equipment used to manufacture them, contain an increasing number of embedded computers. Embedded systems software often implement functionality that is crucial for the operation of the device, resulting in a variety of timing requirements and resource utilization constraints to be fulfilled. LÄS MER

7. 5. Energy-Centric Scheduling for Real-Time Systems

   Författare :Flavius Gruian; Institutionen för datavetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; numerisk analys; Datalogi; Computer science; numerical analysis; System-Level Synthesis; Variable Speed Processors; Dynamic Voltage Scaling; Real-Time Scheduling; Energy Efficient Systems; control; systems; system; kontroll;

   Sammanfattning : Energy consumption is today an important design issue for all kinds of digital systems, and essential for the battery operated ones. An important fraction of this energy is dissipated on the processors running the application software. To reduce this energy consumption, one may, for instance, lower the processor clock frequency and supply voltage. LÄS MER