Software infrastructure for the highly-distributed semi-autonomous Dragonfly Spectral Line Mapper

Autor: Pasha, Imad, Chen, Seery, Lokhorst, Deborah, Bowman, William P., Shen, Zili, Liu, Qing, Malakhov, Evgeni I., Abraham, Roberto, van Dokkum, Pieter G.
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: The Dragonfly Spectral Line Mapper (DSLM) is a semi-autonomous, distributed-aperture based telescope design, featuring a modular setup of 120 Canon telephoto lenses, and equal numbers of ultra-narrowband filters, detectors, and other peripherals. Here we introduce the observatory software stack for this highly-distributed system. Its core is the Dragonfly Communication Protocol (DCP), a pure-Python hardware communication framework for standardized hardware interaction. On top of this are 120 REST-ful FastAPI web servers, hosted on Raspberry Pis attached to each unit, orchestrating command translation to the hardware and providing diagnostic feedback to a central control system running the global instrument control software. We discuss key features of this software suite, including docker containerization for environment management, class composition as a flexible framework for array commands, and a state machine algorithm which controls the telescope during autonomous observations.
Comment: 18 pages, presented at the SPIE Astronomical Telescopes and Instrumentation conference in Yokohama, Japan
Databáze: arXiv