Computación y Sistemas
versão impressa ISSN 1405-5546
A Real-time system implemented in a computer, interacts with the real physical world through variables conditioners (sensors, actuators, D/A and A/D converters) and processes each processing need as concurrent tasks with temporal deadlines. In general each variable of the dynamic process (inputs, outputs and states) is related with a specific task; if it is about a multivariable system then there is going to be a set of tasks for each variable where each will have to be answered correctly with temporal bounds. In this paper a mathematical model for the representation of arrival times of concurrent Real-time tasks is treated. Additionally a stability analysis is proposed.
Palavras-chave : Real-time system; Task; Discrete event system; Transition function; Inter-arrivals.