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15 September 2004 UML modeling of the LINC-NIRVANA control software
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Abstract
LINC-NIRVANA is a Fizeau interferometer for the Large Binocular Telescope (LBT) doing imaging in the near infrared (J,H,K - band). Multi-conjugated adaptive optics is used to increase sky coverage and to get diffraction limited images over a 2 arcminute field of view. The control system consists of five independent loops, which are mediated through a master control. Due to the configuration, LINC-NIRVANA has no delay line like other interferometers. To remove residual atmospheric piston, the system must control both the primary and secondary mirrors, in addition to a third, dedicated piston mirror. This leads to a complex and interlocked control scheme and software. We will present parts of the instrument software design, which was developed in an object-oriented manner using UML. Several diagram types were used to structure the overall system and to evaluate the needs and interfaces of each sub-system to each other.
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Wolfgang Gaessler, Thomas Bertram, F. Briegel, Thomas M. Driebe, Matthias Heininger, Edmund Nussbaum, Clemens Storz, J. Wang, Lahbib Zealouk, Thomas M. Herbst, Roberto Ragazzoni, A. Eckhardt, and Gerd P. Weigelt "UML modeling of the LINC-NIRVANA control software", Proc. SPIE 5496, Advanced Software, Control, and Communication Systems for Astronomy, (15 September 2004); doi: 10.1117/12.551756; https://doi.org/10.1117/12.551756
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