Mr. Heiko A. Sommer Profile

Heiko A. Sommer

at European Southern Observatory

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Author

Publications (14)

Proceedings Article | 29 August 2022 Presentation + Paper

The ELT high level coordination and control

Gianluca Chiozzi, Nick Kornweibel, Ulrich Lampater, Babak Sedghi, Heiko Sommer

Proceedings Volume 12189, 1218919 (2022) https://doi.org/10.1117/12.2630435

KEYWORDS: Telescopes, Control systems, Adaptive optics, Device simulation, Interfaces, Standards development

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Proceedings Article | 6 July 2018 Presentation + Paper

The ELT control system

Gianluca Chiozzi, Mario Kiekebusch, Nick Kornweibel, Ulrich Lampater, Marcus Schilling, Babak Sedghi, Heiko Sommer

Proceedings Volume 10707, 107070U (2018) https://doi.org/10.1117/12.2312164

KEYWORDS: Control systems, Telescopes, Safety, Adaptive optics, Computing systems, Standards development, Sensors, Mirrors, Actuators

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The Extremely Large Telescope (ELT) is a 39 meters optical telescope under construction at an altitude of about 3000m in the Chilean Atacama desert. The optical design is based on a novel five-mirror scheme and incorporates adaptive optics mirrors. The primary mirror consists of 798 segments, each 1.4 meters wide[1]. The control of this telescope and of the instruments that will be mounted on it is very challenging, because of its size, the number of sensors and actuators, the computing performance required for the phasing of the primary mirror, the adaptive optics and the correlation between all the elements in the optical path. In this paper we describe the control system architecture, emerging from scientific and technical requirements. We also describe how the procurement strategy (centered on industrial contracts at subsystem level) affects the definition of the architecture and the technological choices. We first introduce the global architecture of the system, with Local Control Systems and a Supervisory Control layer. The Local Control Systems is astronomy-agnostic and isolate the control of the subsystems procured through industrial contracts. The Supervisory Control layer is instead responsible for coordinating the operation of the different subsystems to realize the observation cases identified for the operation of the telescope. The control systems of the instruments interface with the telescope using a well-defined and standardized interface. To facilitate the work of the Consortia responsible for the construction of the instruments, we provide an Instrumentation Control Software Framework. This will ensure uniformity in the design of the control systems across instruments, making maintenance easier. This approach was successfully adopted for the instrumentation of the Very Large Telescope facility. We will analyze the process that was followed for defining the architecture from the requirements and use cases and to produce a design that addresses the technical challenges.

Proceedings Article | 8 August 2016 Paper

ACS from development to operations

Alessandro Caproni, Pau Colomer, Bogdan Jeram, Heiko Sommer, Gianluca Chiozzi, Miguel Mañas

Proceedings Volume 9913, 991313 (2016) https://doi.org/10.1117/12.2231700

KEYWORDS: Software development, Observatories, Telescopes, Antennas, Astronomy, Distributed computing, Databases, Floods, Fermium, Frequency modulation

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Proceedings Article | 8 August 2016 Paper

The ESO astronomical site monitor upgrade

Gianluca Chiozzi, Heiko Sommer, Marc Sarazin, Thomas Bierwirth, Dario Dorigo, Ignacio Vera Sequeiros, Julio Navarrete, Diego Del Valle

Proceedings Volume 9913, 991314 (2016) https://doi.org/10.1117/12.2232302

KEYWORDS: Astronomy, Observatories, Sensors, Telescopes, Databases, Atmospheric sensing, Control systems, Data modeling, Lanthanum, Java

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Proceedings Article | 4 August 2014 Paper

Model based systems engineering for astronomical projects

R. Karban, L. Andolfato, P. Bristow, G. Chiozzi, M. Esselborn, M. Schilling, C. Schmid, H. Sommer, M. Zamparelli

Proceedings Volume 9150, 91500L (2014) https://doi.org/10.1117/12.2055540

KEYWORDS: Systems modeling, Systems engineering, Control systems, Telescopes, Control systems design, Astronomy, Instrument modeling, Interfaces, Wavefronts, Visual process modeling

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Proceedings Article | 24 September 2012 Paper

ALMA software scalability experience with growing number of antennas

Matias Mora, Jorge Avarias, Alexis Tejeda, Juan Pablo Gil, Heiko Sommer

Proceedings Volume 8451, 84510W (2012) https://doi.org/10.1117/12.926564

KEYWORDS: Antennas, Optical correlators, Control systems, Calibration, Databases, Computer simulations, Data processing, C++, Data archive systems, Observatories

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Proceedings Article | 19 July 2010 Paper

A code generation framework for the ALMA common software

Nicolás Troncoso, Horst von Brand, Jorge Ibsen, Matias Mora, Victor Gonzalez, Gianluca Chiozzi, Bogdan Jeram, Heiko Sommer, Gabriel Zamora, Alexis Tejeda

Proceedings Volume 7740, 774039 (2010) https://doi.org/10.1117/12.857039

KEYWORDS: Software development, Java, Reverse modeling, Astronomy, Control systems design, C++, Observatories, Lab on a chip, Control systems, Logic

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Proceedings Article | 19 July 2010 Paper

Introducing high performance distributed logging service for ACS

Jorge Avarias, Joao López, Cristián Maureira, Heiko Sommer, Gianluca Chiozzi

Proceedings Volume 7740, 77403G (2010) https://doi.org/10.1117/12.857289

KEYWORDS: Electronic filtering, C++, Data modeling, Java, Data communications, Performance modeling, Distributed computing, Software frameworks, Telecommunications, Astronomy

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Proceedings Article | 14 July 2008 Paper

The ALMA common software: dispatch from the trenches

J. Schwarz, H. Sommer, B. Jeram, M. Sekoranja, G. Chiozzi, A. Grimstrup, A. Caproni, C. Paredes, E. Allaert, S. Harrington, S. Turolla, R. Cirami

Proceedings Volume 7019, 70190W (2008) https://doi.org/10.1117/12.787594

KEYWORDS: Antennas, Software development, Observatories, Java, Computing systems, C++, Antimony, Solar thermal energy, Astronomy, Data acquisition

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Proceedings Article | 27 June 2006 Paper

Application development using the ALMA common software

G. Chiozzi, A. Caproni, B. Jeram, H. Sommer, V. Wang, M. Plesko, M. Sekoranja, K. Zagar, D. Fugate, S. Harrington, P. Di Marcantonio, R. Cirami

Proceedings Volume 6274, 627406 (2006) https://doi.org/10.1117/12.671707

KEYWORDS: Software development, Antennas, Telescopes, Java, Distributed computing, C++, Computer programming languages, Computer programming, Interferometers, Prototyping

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Proceedings Article | 16 September 2004 Paper

Proposal and observing preparation for ALMA

Alan Bridger, David Clarke, Alberto Chavan, Joseph Schwarz, Marcus Schilling, Leonardo Testi, Heiko Sommer

Proceedings Volume 5493, (2004) https://doi.org/10.1117/12.551663

KEYWORDS: Observatories, Data modeling, Interfaces, Antimony, Telescopes, Java, Astronomy, Space telescopes, Human-machine interfaces, Synthetic apertures

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Proceedings Article | 15 September 2004 Paper

The ALMA common software: a developer-friendly CORBA-based framework

Gianluca Chiozzi, Bogdan Jeram, Heiko Sommer, Alessandro Caproni, Mark Plesko, Matej Sekoranja, Klemen Zagar, David Fugate, Paolo Di Marcantonio, Roberto Cirami

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.551943

KEYWORDS: Java, C++, Software development, Control systems, Prototyping, Computer programming, Astronomy, Toxic industrial chemicals, Antennas, Databases

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Proceedings Article | 15 September 2004 Paper

Container-component model and XML in ALMA ACS

Heiko Sommer, Gianluca Chiozzi, Klemen Zagar, Markus Voelter

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.551718

KEYWORDS: Java, Software development, Web services, C++, Binary data, Distributed computing, Data modeling, Computer programming, Sun, Databases

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Proceedings Article | 15 September 2004 Paper

The ALMA software architecture

Joseph Schwarz, Allen Farris, Heiko Sommer

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.551712

KEYWORDS: Data modeling, Data archive systems, Software development, Computer architecture, Calibration, Optical correlators, Data storage, Observatories, Data acquisition, Telescopes

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Showing 5 of 14 publications

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