Developing a Supervisory Technique for Online Fault Isolation and Coordination Tasks.

Document Type : Research Studies

Authors

1 Department of industrial Electronics and Control Engineering., Facultyof Electronic Engineering., Minufiya., Egypt

2 Department of Computer and Systems Engineering, Faculty of Engineering, Ain Shams University, Cairo.

3 Department of industrial Electronics and Control Eng.,Faculty of Electronic Eng., Minufiya University., Minufiya

Abstract

The control of complex automated systems requires a supervision system that includes coordination as well as fault detection and diagnosis capabilities. The objective of coordination system is to enforce the plant to legal and safe behavior, while the objective of the fault detection and isolation is to detect and isolate the failures according to the observation traces generated by the system. This paper proposes a new supervisory control technique for online fault detection, isolation and coordination based on Petri net models. This technique has two components, a supervisor, and a diagnoser. The latter evaluates the faulty states without checking the properties that restrict the performance of the conventional dignosers to certain types of Petri net models. This paper also presents two-robot surveillance system, as an application example, to test the proposed algorithm.

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