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The ATST base: command-action-response in action
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Paper Abstract

The Advanced Technology Solar Telescope (ATST) Common Services Framework (CSF) provides the technical framework necessary to quickly and easily develop applications implementing the command-action-response model. The ATST Base builds on top of CSF and provides applications that, with a few modifications, can be dropped into a telescope control system or an instrument control system. This is done by extending the CSF Controller and writing applications that perform some of the common tasks needed by telescope and instrument control systems. This paper includes a general look at the Hardware Controller and an in-depth look at the Management Controller and Motion Controller classes. Telescope and instrument control systems typically have multiple axes of motion that need to be coordinated. Management Controllers allow a simple command to be given to a single Controller and then aggregated to multiple worker Controllers who can perform multiple actions. Management Controllers aggregate the state and status of their workers. The workers may be of the same type (e.g., multiple servo control systems) or of different types (e.g., two different servo controllers, a hexapod controller, digital I/O controller and a camera controller). Most users of turnkey motion control solutions use only a few of the commands that the motion control system provides. The ATST Base Motion Controller abstracts the hardware, and provides a simple interface (focusing on a few common instructions) to use in controlling different types of motion stages.

Paper Details

Date Published: 19 July 2010
PDF: 7 pages
Proc. SPIE 7740, Software and Cyberinfrastructure for Astronomy, 77402R (19 July 2010); doi: 10.1117/12.857599
Show Author Affiliations
John Hubbard, National Solar Observatory (United States)
Bret Goodrich, National Solar Observatory (United States)
Steve Wampler, National Solar Observatory (United States)

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

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