The preliminary design of the G-CLEF spectrograph instrument device control system

Ian N. Evans; Daniel Durusky; Janet DePonte Evans; Thomas Gauron; Cem Onyuksel; David A. Plummer

doi:10.1117/12.2312242

6 July 2018 The preliminary design of the G-CLEF spectrograph instrument device control system

Ian N. Evans, Daniel Durusky, Janet DePonte Evans, Thomas Gauron, Cem Onyuksel, David A. Plummer

Proceedings Volume 10707, Software and Cyberinfrastructure for Astronomy V; 107071F (2018) https://doi.org/10.1117/12.2312242
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Giant Magellan Telescope (GMT)-Consortium Large Earth Finder (G-CLEF) is a fiber-fed, precision radial velocity optical echelle spectrograph. The preliminary software design incorporates a hierarchical, multi-level state machine. At the lowest level, the state machine utilizes GMT-provided frameworks to communicate with the hardware. At higher levels of abstraction, the design makes extensive use of State Chart Extensible Markup Language (SCXML) representations to define the operation of the instrument. The functionality of the design can be validated by executing these representations. The incorporation of an interpreter to directly execute the SCXML as a component of the control system is being investigated. The approaches used to develop the preliminary software design concept are described, the use and utility of SCXML for instrument control is discussed, and the application of the preliminary design to a subset of G-CLEF subsystems is demonstrated.

Conference Presentation

Citation Download Citation

Ian N. Evans, Daniel Durusky, Janet DePonte Evans, Thomas Gauron, Cem Onyuksel, and David A. Plummer "The preliminary design of the G-CLEF spectrograph instrument device control system", Proc. SPIE 10707, Software and Cyberinfrastructure for Astronomy V, 107071F (6 July 2018); https://doi.org/10.1117/12.2312242

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