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Proceedings Paper

A high-availability distributed hardware control system using Java
Author(s): Albert F. Niessner
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Paper Abstract

Two independent coronagraph experiments that require 24/7 availability with different optical layouts and different motion control requirements are commanded and controlled with the same Java software system executing on many geographically scattered computer systems interconnected via TCP/IP. High availability of a distributed system requires that the computers have a robust communication messaging system making the mix of TCP/IP (a robust transport), and XML (a robust message) a natural choice. XML also adds the configuration flexibility. Java then adds object-oriented paradigms, exception handling, heavily tested libraries, and many third party tools for implementation robustness. The result is a software system that provides users 24/7 access to two diverse experiments with XML files defining the differences.

Paper Details

Date Published: 19 July 2010
PDF: 10 pages
Proc. SPIE 7740, Software and Cyberinfrastructure for Astronomy, 77403C (19 July 2010); doi: 10.1117/12.856451
Show Author Affiliations
Albert F. Niessner, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 7740:
Software and Cyberinfrastructure for Astronomy
Nicole M. Radziwill; Alan Bridger, Editor(s)

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