An object-oriented approach to cryogenic control systems for the CERN test facilities: a case study based on the UNICOS framework.

This paper consists of two parts, the first of which is more general and presents the reason of particle collision research, the LHC accelerator and its main detectors (Chapter 1). It also provides information about the test stations in SM18, the cryogenic architecture of the hall and the significant properties of the liquid helium, which make him perfect coolant for the superconducting devices (Chapter 2). The second part of this thesis presents the revamping of the SM18 test facility. It describes the previous functional view and changes that were done. The new layout of the Radio Frequency Cavities rack and communication is also presented (Chapter 3). Chapter 4 gives the information about the software frameworks, code generation for the PLC and the synoptic production