Location of additional sensors for FDI

Christian Commault (1) , Jean-Michel Dion (1) , Sameh Yacoub Agha (1)

1 LAG - Laboratoire d'automatique de Grenoble

We present a structural analysis for sensor location in the Fault Detection and Isolation problem. We deal with this problem when the system under consideration is structured, that is, the entries of the system matrices are either fixed zeros or free parameters. With such structured systems one can associate a graph. We define in this graph a set of separators (Input Separators) which allows us to get sets of system variables in which additional sensors must be implemented to solve the considered FDI Problem. It is shown that these separators parameterize all the solutions, and allow to choose among a set of potential additional sensors to solve the FDI problem.

Keywords: Sensor location selection; Linear systems; Structured systems; Fault detection and isolation; Sensor location selection.

Domains: Automatic

Christian Commault, Jean-Michel Dion, Sameh Yacoub Agha. Location of additional sensors for FDI. 4th Workshop on Advanced Control and Diagnosis, Nov 2006, Nancy, France. ⟨hal-00113032⟩