Title :
Adapting FTT-CAN for the joint dispatching of tasks and messages
Author :
Calha, Mário J. ; Fonseca, José A.
Author_Institution :
EST, Instituto Politecnico de Castelo Branco, Portugal
Abstract :
In the context of centralized holistic scheduling of tasks and messages, dispatching can he an issue. This paper presents an architecture with a centralized dispatcher that can be easily integrated in any distributed control system without introducing significant overhead. A central node dispatches both tasks and messages to other nodes that are only required to possess a nano-kernel. Furthermore the interdependences between producer/consumer tasks and messages are studied, resulting in a set of constraints that guarantee system feasibility. It is also shown that this solution is easily implemented using a protocol for message dispatching such as FTT-CAN (flexible time-triggered communication on CAN).
Keywords :
controller area networks; distributed control; processor scheduling; protocols; FTT-CAN; central node; centralized holistic message scheduling; centralized holistic task scheduling; distributed control system; flexible time-triggered communication on CAN; joint task/message dispatching; nano-kernel; protocol; Application software; Communication system control; Computer architecture; Dispatching; Distributed control; Fault tolerance; Field buses; Microcontrollers; Processor scheduling; Real time systems;
Conference_Titel :
Factory Communication Systems, 2002. 4th IEEE International Workshop on
Print_ISBN :
0-7803-7586-6
DOI :
10.1109/WFCS.2002.1159708