| 摘要 |
PROBLEM TO BE SOLVED: To evaluate apparatus deterioration accurately, even when there exist many normal operation states. SOLUTION: First of all, the apparatus deterioration evaluation support device 1 acquires and stores physical data (an acoustic level, apparatus output, and sample data of the outside air temperature) at an initial stage of apparatus operation (S401). Then, the device 1 derives and stores a relational expression between the apparatus output and the outside air temperature which are independent variables and acoustic data which are dependent variables by a procedure for multivariate analysis (S402). Thereafter, the device 1 acquires and stores data of physical quantities at that point of time, for evaluation of apparatus deterioration (S403). Then, the device 1 calculates and stores the acoustic data which are inherent dependent variables by substituting initial output data and initial temperature data which are independent variables at the evaluation time for the relational expression (S404). Successively, the device 1 subtracts inherent acoustic data which are inherent dependent variables from the evaluation time acoustic data which are dependent variables at the evaluation time, stores the subtracted value as differential data (S405), and outputs the differential data (S406). COPYRIGHT: (C)2011,JPO&INPIT
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