Optimal configuration method of sensors in fault diagnosis system based on quantitative structural model
A fault diagnosis system and quantitative structure technology, applied in the field of fault diagnosis system based on analytical redundancy relationship, can solve the problem of no sensor optimal configuration method and so on
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[0045] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:
[0046] The present invention will be further described below by taking a certain type of electromechanical actuator fault diagnosis system as an example and in conjunction with the accompanying drawings.
[0047] Step 1 establishes the structural model of the fault diagnosis system described by the analytical redundancy relation matrix B and the fault characteristic matrix M.
[0048] 1. Determine the analytical redundant relationship set A={a 1 ,a 2 ,...a m} and the complete set of sensors (measurable variables) of the system S={s 1 ,s 2 ,...,s n}, the sensor information is shown in Table 1; determine the set of p faults in the system F={f 1 ,f 2 ,..., f p}, the fault information is shown in Table 2;
[0049] 2. Establish analytical redundancy relation matrix B=[b ij ] m×n , the columns of the matrix denote the measurable variables or sensors, the row...
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