ICALEPCS2017 - List of Authors (Rosenquist, C.)

Paper	Title	Page
THBPL02	Behavioural Models for Device Control	1109
	L. Andolfato, M. Comin, S. Feyrin, M. Kiekebusch, J. Knudstrup, F. Pellegrin, D. Popovic, C. Rosenquist, R. Schmutzer ESO, Santiago, Chile
	ESO is in the process of designing a new instrument control application framework for the ELT project. During this process, we have used the experience in HW control gained from the first and second generation of VLT instruments that have been in operation for almost 20 years. The preliminary outcome of this analysis is a library of Statecharts models illustrating the behaviour of some of the most commonly used devices in telescope and instrument control systems. This paper describes the architectural aspects taken into consideration when designing the models such as HW/SW state representation, common/specialized behaviour, and failure management. An extension to Harel's formalism to facilitate reusability by dynamic creation of orthogonal regions is also proposed. The paper details the behaviour of some devices like shutters, lamps and motors together with the rationale behind the modelling choices. A mapping of the models to a concrete implementation using real HW components is suggested. Although these models have been designed following the principles of our conceptual architecture, they are still generic and platform independent, so they can be easily reused in other projects.
	Talk as video stream: https://youtu.be/aJr6SkBmsuY
	Slides THBPL02 [1.520 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THBPL02
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THBPL05	The ELT Linux Development Environment	1125
	F. Pellegrin, C. Rosenquist ESO, Garching bei Muenchen, Germany
	The Extremely Large Telescope is a 39-metre ground-based telescope being built by ESO. It will be the largest optical/near-infrared telescope in the world and first light is foreseen for 2024. The overall ELT Linux development environment will be presented with an in-depth presentation of its core, the waf build system, and the customizations that ESO is currently developing. The ELT software development for telescopes and instruments poses many challenges to cover the different needs of such a complex system:a variety of technologies, Java, C/C++ and Python as programming languages, Qt5 as the GUI toolkit, communication frameworks such as OPCUA, DDS and ZeroMQ, the interaction with entities such as PLCs and real-time hardware, and users, in-house and not, looking at new usage patterns. All this optimized to be on time for the first light. To meet these requirements, a set of tools was selected. Its content ranges from an IDE, to compilers, interpreters, analysis and debugging tools for the various languages and operations. At the heart of the toolkit lies the modern build framework waf:a versatile tool written in Python selected due to its multiple language support and high performance.
	Talk as video stream: https://youtu.be/Wk3efalQnY4
	Slides THBPL05 [0.504 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THBPL05
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Behavioural Models for Device Control

1109

L. Andolfato, M. Comin, S. Feyrin, M. Kiekebusch, J. Knudstrup, F. Pellegrin, D. Popovic, C. Rosenquist, R. Schmutzer
ESO, Santiago, Chile

ESO is in the process of designing a new instrument control application framework for the ELT project. During this process, we have used the experience in HW control gained from the first and second generation of VLT instruments that have been in operation for almost 20 years. The preliminary outcome of this analysis is a library of Statecharts models illustrating the behaviour of some of the most commonly used devices in telescope and instrument control systems. This paper describes the architectural aspects taken into consideration when designing the models such as HW/SW state representation, common/specialized behaviour, and failure management. An extension to Harel's formalism to facilitate reusability by dynamic creation of orthogonal regions is also proposed. The paper details the behaviour of some devices like shutters, lamps and motors together with the rationale behind the modelling choices. A mapping of the models to a concrete implementation using real HW components is suggested. Although these models have been designed following the principles of our conceptual architecture, they are still generic and platform independent, so they can be easily reused in other projects.

Talk as video stream: https://youtu.be/aJr6SkBmsuY

Slides THBPL02 [1.520 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THBPL02

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THBPL05

The ELT Linux Development Environment

1125

F. Pellegrin, C. Rosenquist
ESO, Garching bei Muenchen, Germany

The Extremely Large Telescope is a 39-metre ground-based telescope being built by ESO. It will be the largest optical/near-infrared telescope in the world and first light is foreseen for 2024. The overall ELT Linux development environment will be presented with an in-depth presentation of its core, the waf build system, and the customizations that ESO is currently developing. The ELT software development for telescopes and instruments poses many challenges to cover the different needs of such a complex system:a variety of technologies, Java, C/C++ and Python as programming languages, Qt5 as the GUI toolkit, communication frameworks such as OPCUA, DDS and ZeroMQ, the interaction with entities such as PLCs and real-time hardware, and users, in-house and not, looking at new usage patterns. All this optimized to be on time for the first light. To meet these requirements, a set of tools was selected. Its content ranges from an IDE, to compilers, interpreters, analysis and debugging tools for the various languages and operations. At the heart of the toolkit lies the modern build framework waf:a versatile tool written in Python selected due to its multiple language support and high performance.

Talk as video stream: https://youtu.be/Wk3efalQnY4

Slides THBPL05 [0.504 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THBPL05

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)