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The tasks allocation on various components or processing units composing an automation system needs a design-aided methodology in order to both obtain relevant architecture of this automation system and a sufficiently efficient tasks allocation. The dependability, mainly illustrated in our approach by the availability of the process and by the reliability that characterizes the risk of incidents or accident occurrences, can be taken into account in the earliest stage of the design of the automation system. The main interest is that it allows the definition of reliable operational and functional architectures. To achieve the tasks allocation the used search method must integrate a notion of cost that includes both technological and functional aspects and those linked to the dependability. A genetic approach is used for the task allocation, giving a very satisfactory result in a reasonable computational time.
Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE (Volume:2 )
Date of Conference: 2002