Fault detection of networked control systems with uncertain time-varying delay and quantization error. (English) Zbl 1293.93072
Summary: Problems related to fault detection of Networked Control Systems (NCSs) with both uncertain time-varying delay and quantization error are studied in this paper. A novel model with the form of polytopic uncertainty is given to represent the influences of both the time-varying delay and the quantization error, and then the reference model based method is used to design the residual generator that is robust to both unknown network-induced delay and unknown inputs. A numerical example is also given to illustrate the merits of the presented method. The proposed method can be regarded as an extension of the authors’ former work, which can only deal with time-varying delay.
MSC:
| 93A15 | Large-scale systems |
| 94C15 | Applications of graph theory to circuits and networks |
| 93B52 | Feedback control |
| 90B18 | Communication networks in operations research |
| 93C15 | Control/observation systems governed by ordinary differential equations |
Keywords:
fault detection; networked control systems (NCSs); delay; quantization error; polytopic uncertaintyReferences:
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