Graduate Thesis Or Dissertation
 

Taskmaster II, a versatile distributed system for control

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/p5547v97k

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  • This thesis discusses a special type of a versatile, distributed control system, the Taskmaster II. It includes a detailed specification of a readily realizable Taskmaster system utilizing a layered communication among units, oriented on the ISO OSI seven layer model. The specification was developed from the analysis of previous research conducted at the Department of Electrical and Computer Engineering at Oregon State University and a survey of modern state-of-the-art hardware environments. The Taskmaster is an open system and embodies hardware and software components. Based on the developed specification, a functional analysis for the implementation of a revised Taskmaster operating system on distributed hardware environments is presented. It is intended to serve as a guideline for the porting of the Taskmaster Operating system to hardware components of any microprocessor. Utilizing this analysis, the core of the Taskmaster Operating system was implemented on a new hardware environment, satisfying several system requirements. One particular condition was to keep components of the new Taskmaster system compatible to those of the old system. This was realized by preserving the lower communication layers and a particular communication protocol. In this implementation, a Motorola MC68C11 microcontroller and a Motorola evaluation board were selected and successfully employed as hardware nodes of the distributed Taskmaster System. The performance of the implementation was tested and discussed. It could be shown that the new system is a truly open system and able to employ hardware units of different vendors, utilizing the enhanced computational capabilities of recently available hardware components.
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