A High-Availability Safety Computer
Sylvain Baro · 2013
The computers used for the automation of railway systems have increasingly important needs in terms of safety and availability. This chapter begins by presenting the architecture and safety principles of the simple computer, based on the principle of encoding. Then, it presents the principles of redundancy used in the past. The chapter also presents the integrated redundancy protocol that we currently use to provide the high availability demanded by the railway applications, starting from the principles and objectives to the detailed design. Controlled Vocabulary Terms fifth generation systems; railway safety; redundancy