Architectural verification of control systems using CSP

Authors:
Joabe Jesus;Alexandre Mota;Augusto Sampaio;Luiz Grijo
Affiliations:
Centro de Informática - Universidade Federal de Pernambuco, Recife, PE, Brazil;Centro de Informática - Universidade Federal de Pernambuco, Recife, PE, Brazil;Centro de Informática - Universidade Federal de Pernambuco, Recife, PE, Brazil;Empresa Brasileira Aeronáutica, São José dos Campos, SP, Brazil
Venue:
ICFEM'11 Proceedings of the 13th international conference on Formal methods and software engineering
Year:
2011

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Abstract

Although validation of complex dynamic systems can be realised using checklists and simulations provided by tools such as Simulink, these techniques usually do not cover all system behaviours. Moreover, the control laws are rarely modelled together with the system architecture. This integration can reveal defects which are only detected in final stages of the development. This work presents two major contributions: a strategy to validate the integration of a proposed architecture with control laws, based on the CSP process algebra; and the validation of a Fly-by-wire Elevator Control System designed by Embraer. The results show that the strategy helps finding defects in early stages of the development, saving time and costs.