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    What is the analytical redundancy method?


    Due to the popularity of computers and the powerful role of computer technology, it is possible to establish a simpler, cheaper and more effective sensor fault diagnosis system.It is well known that there is usually a certain correlation between measurements when measuring different quantities on the same object.So we can establish an appropriate mathematical model to represent the dynamic characteristics of the system, and determine whether a sensor failure occurs by comparing the difference between the model output and the actual system output.This method is called a functional or analytical redundancy or a model approach.


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