24 September 2012 UKIRT remote operations fail-safe system
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Abstract
Remote operation of a four meter class telescope on the summit of Mauna Kea from 40 kilometers away presents unique challenges. Concerns include: communication links being severed, the computer controlling the enclosure becoming inoperable, non-responsive software, inclement weather, or the operator forgetting or unable to close the dome during a personal emergency. These issues are addressed at the United Kingdom Infrared Telescope (UKIRT) by a series of deadman handshakes starting on the operator's end with a graphical user interface that requires periodic attention and culminates with hardware in the telescope that will initiate a closing sequence when regular handshake signals do not continue. Software packages including Experimental Physics and Industrial Control Systems1 (EPICS) and a distributed, real time computing system for instrumentation2 (DRAMA) were used in this project to communicate with hardware control systems and to coordinate systems. After testing, this system has been used in operation since January 2011.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bryan Gorges, Craig Walther, Tim Chuter, "UKIRT remote operations fail-safe system", Proc. SPIE 8451, Software and Cyberinfrastructure for Astronomy II, 84510Z (24 September 2012); doi: 10.1117/12.925508; https://doi.org/10.1117/12.925508
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