VITAL CODED MICROPROCESSOR PRINCIPLES AND APPLICATION FOR VARIOUS TRANSIT SYSTEMS

Abstract In this paper we consider an application of redundancy codes to the problem of vital data processing. In a first step, we introduce the random codes in application of digital data links and we demonstrate the efficiency of this probalistic model to obtain the highest security levels. Thereafter we describe how these concepts are used to design standard coded operators, to process and compute vital data with non-redundant hardware and software. This Vital Coded Processor is now in use on several automatic and semi-automatic guideway transit systems.