ICALEPCS2011 - List of Authors (Geng, Z.)

Paper

Title

Page

An Object Oriented Framework of EPICS for MicroTCA Based Control System

775

Z. Geng
SLAC, Menlo Park, California, USA

EPICS (Experimental Physics and Industrial Control System) is a distributed control system platform which has been widely used for large scientific devices control like particle accelerators and fusion plant. EPICS has introduced object oriented (C++) interfaces to most of the core services. But the major part of EPICS, the run-time database, only provides C interfaces, which is hard to involve the EPICS record concerned data and routines in the object oriented architecture of the software. This paper presents an object oriented framework which contains some abstract classes to encapsulate the EPICS record concerned data and routines in C++ classes so that full OOA (Objected Oriented Analysis) and OOD (Object Oriented Design) methodologies can be used for EPCIS IOC design. We also present a dynamic device management scheme for the hot-swap capability of the MicroTCA based control system.

Poster WEPKS003 [0.176 MB]

WEPKS010

Architecture Design of the Application Software for the Low-Level RF Control System of the Free-Electron Laser at Hamburg

798

Z. Geng
SLAC, Menlo Park, California, USA
V. Ayvazyan
DESY, Hamburg, Germany
S. Simrock
ITER Organization, St. Paul lez Durance, France

The superconducting linear accelerator of the Free-Electron Laser at Hamburg (FLASH) provides high performance electron beams to the lasing system to generate synchrotron radiation to various users. The Low-Level RF (LLRF) system is used to maintain the beam stabilities by stabilizing the RF field in the superconducting cavities with feedback and feed forward algorithms. The LLRF applications are sets of software to perform RF system model identification, control parameters optimization, exception detection and handling, so as to improve the precision, robustness and operability of the LLRF system. In order to implement the LLRF applications in the hardware with multiple distributed processors, an optimized architecture of the software is required for good understandability, maintainability and extendibility. This paper presents the design of the LLRF application software architecture based on the software engineering approach and the implementation at FLASH.

Poster WEPKS010 [0.307 MB]

Paper	Title	Page
WEPKS003	An Object Oriented Framework of EPICS for MicroTCA Based Control System	775
	Z. Geng SLAC, Menlo Park, California, USA
	EPICS (Experimental Physics and Industrial Control System) is a distributed control system platform which has been widely used for large scientific devices control like particle accelerators and fusion plant. EPICS has introduced object oriented (C++) interfaces to most of the core services. But the major part of EPICS, the run-time database, only provides C interfaces, which is hard to involve the EPICS record concerned data and routines in the object oriented architecture of the software. This paper presents an object oriented framework which contains some abstract classes to encapsulate the EPICS record concerned data and routines in C++ classes so that full OOA (Objected Oriented Analysis) and OOD (Object Oriented Design) methodologies can be used for EPCIS IOC design. We also present a dynamic device management scheme for the hot-swap capability of the MicroTCA based control system.
	Poster WEPKS003 [0.176 MB]

WEPKS010	Architecture Design of the Application Software for the Low-Level RF Control System of the Free-Electron Laser at Hamburg	798
	Z. Geng SLAC, Menlo Park, California, USA V. Ayvazyan DESY, Hamburg, Germany S. Simrock ITER Organization, St. Paul lez Durance, France
	The superconducting linear accelerator of the Free-Electron Laser at Hamburg (FLASH) provides high performance electron beams to the lasing system to generate synchrotron radiation to various users. The Low-Level RF (LLRF) system is used to maintain the beam stabilities by stabilizing the RF field in the superconducting cavities with feedback and feed forward algorithms. The LLRF applications are sets of software to perform RF system model identification, control parameters optimization, exception detection and handling, so as to improve the precision, robustness and operability of the LLRF system. In order to implement the LLRF applications in the hardware with multiple distributed processors, an optimized architecture of the software is required for good understandability, maintainability and extendibility. This paper presents the design of the LLRF application software architecture based on the software engineering approach and the implementation at FLASH.
	Poster WEPKS010 [0.307 MB]