Implementing syntax evolution of embedded systems

Abstract

Safety Critical systems such as Nuclear reactor systems cannot be shut down as restarting is a huge process and incurs heavy cost. The embedded systems which are used for monitoring and controlling the safety criticalsystems cannot be shut down as well. ES system which drives safety critical systems must be communicated from remote location generally through a HOST connected on to an internet. Communication between the HOST and the ES system is done using command language which has to be evolved from time to time. The change to the command language must be undertaken while the embedded system is up and running. The evolution thus must be dynamic. Many architecture have been proposed in the literature for evolving syntax of commandlanguage. The implementation of an efficient architecture as such has not been found place in the literature without which existing architecture as such has no meaning. This paper presents a set of methods using which the implementation of syntax evolution of embedded systems as such can be achieved. The syntax evolution methods presented have been applied to a safety critical system that monitors and controlstemperatures within nuclear reactor systems.