| 摘要 |
Adjusting parameters concerning diagnostics, such as cluster numbers, is essential to improve the accuracy of fault diagnosis in machinery. This adjustment work requires verification by an analyst as to whether diagnostic results have improved, each time diagnostic parameters are changed. To address this problem, the present invention supports the work of verifying whether diagnostic accuracy has improved, by comparing diagnostic results before and after parameters have been changed. If there is a large number of sensor data points that are diagnosed, the number of data points for the degree of malfunction, which is the diagnostic results thereof, will also increase. If the number of data points becomes large, the work of comparing diagnostic results takes time, which is problematic. In this data display system, data for the degree of malfunction which has changed greatly before and after the change in parameters are identified automatically, and displayed to the analyst. The magnitude of the variation in degree of malfunction is determined as the percentage variation in degree of malfunction, as the ratio of the "variation difference in degree of malfunction" to "differential of varied parameter". Only degrees of malfunction with a large percentage variation are displayed to the analyst. In addition, if more suitable parameters were hidden during the variation in parameters, these are also displayed and presented to the analyst. |
