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6 December 2020 Goal-oriented architecture for telescope control software
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Abstract
Modern telescope control systems control a multitude of sensors and actuators physically distributed across subsystems. Traditionally, control systems are specified to compute system outputs based on reference set-points despite environmental or internal disturbances. In a goal oriented approach, the control system architecture emphasizes the operational aspect, specifying the behavior at a higher level in terms of operational goals, considering several aspects such as environmental conditions and required wavefront quality. This paper demonstrates the feasibility of a goal oriented approach by analyzing four fundamental functions: pointing, tracking, offsetting, and dome vignetting. The resulting SysML analysis and design models are used to develop a software prototype for distributed telescope control. Typical operational scenarios are discussed and compared to the ESO Very Large Telescope control software architecture.
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© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. Andolfato and R. Karban "Goal-oriented architecture for telescope control software", Proc. SPIE 11452, Software and Cyberinfrastructure for Astronomy VI, 114521C (6 December 2020); https://doi.org/10.1117/12.2575434
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