JAXA develops the object Re-entry Survival Analysis tool - Japan (ORSAT-J), which is a tool to assess the survivability and risk to the ground of objects re-entering from low Earth orbit. This tool is derived from NAS...
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This paper describes a visual tool for developing real-time control software for distributed industrial systems. The aim of this project currently in progress, is to obtain a visual programming environment which integ...
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This paper describes a visual tool for developing real-time control software for distributed industrial systems. The aim of this project currently in progress, is to obtain a visual programming environment which integrates both the advantages of object-oriented modelling for the design and simulation of systems and the power of modern distributed control systems (i.e. computers with real-time operating systems interconnected by means of industrial real-time networks). To bridge the gap between the object-oriented system model and the implementation level, at which we have multiple parallel tasks running on a network, sequential function charts (SFCs) are used as a standard formalism [12,16] for the description of system dynamics and control software programming. (C) 1999 Elsevier Science B.V. All rights reserved.
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