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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Parallel architectures for real-time control
Parallel computing techniques are investigated for real-time simulation and control of a flexible beam structure in transverse vibration. The performance demands of modern control systems require the employment of complex algorithms with demanding operations which, in turn, leads to shorter sampling times. Therefore, real-time performances in control applications where the use of advanced control methods is warranted becomes difficult to accomplish. Many demanding complex control processes cannot be satisfactorily realised with conventional uni-processor and multi-processor systems. Previous investigations have demonstrated the limitations of employing only transputers for real-time implementations in control applications. Alternative strategies where multi-processor based systems are employed, utilising digital signal processing (DSP) and parallel processing techniques, could provide suitable methodologies. The simulation and control algorithm were implemented on a number of hardware architectures: transputers, digital signal processor, Sun SPARC station and IBM PC. The disparity of the relative processing times indicate a mismatch between the algorithm's hardware requirements and the architecture's hardware resources. Therefore, to fully exploit heterogeneous architectures a close match needs to be forged between the algorithm and the underlying hardware, and issues such as algorithmic regularity and granularity need to be explored.
Parallel architectures for real-time control
Parallel computing techniques are investigated for real-time simulation and control of a flexible beam structure in transverse vibration. The performance demands of modern control systems require the employment of complex algorithms with demanding operations which, in turn, leads to shorter sampling times. Therefore, real-time performances in control applications where the use of advanced control methods is warranted becomes difficult to accomplish. Many demanding complex control processes cannot be satisfactorily realised with conventional uni-processor and multi-processor systems. Previous investigations have demonstrated the limitations of employing only transputers for real-time implementations in control applications. Alternative strategies where multi-processor based systems are employed, utilising digital signal processing (DSP) and parallel processing techniques, could provide suitable methodologies. The simulation and control algorithm were implemented on a number of hardware architectures: transputers, digital signal processor, Sun SPARC station and IBM PC. The disparity of the relative processing times indicate a mismatch between the algorithm's hardware requirements and the architecture's hardware resources. Therefore, to fully exploit heterogeneous architectures a close match needs to be forged between the algorithm and the underlying hardware, and issues such as algorithmic regularity and granularity need to be explored.
Parallel architectures for real-time control
Parallele Algorithmen für die Echtzeitregelung
Tokhi, M.O. (Autor:in) / Hossain, M.A. (Autor:in) / Baxter, M.J. (Autor:in) / Fleming, P.J. (Autor:in)
1994
4 Seiten, 4 Bilder, 7 Quellen
Aufsatz (Konferenz)
Englisch
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