Research Article
Sensor Fault Detection and Diagnosis Method for AHU Using 1-D CNN and Clustering Analysis
Table 5
Diagnosis efficiency of the preliminary FDD and the FDD with Tc acquittal.
| | Type | Bias | The preliminary FDD | The FDD with Tc acquittal | | FDR (%) | MDR (%) | Time (s) | FDR (%) | MDR (%) | Time (s) |
| | Fixed bias of Tsup sensor | 0.5 | 25.28 | 0.12 | 0.0154 | 1.80 | 1.67 | 0.0156 | | 1.0 | 2.77 | 0.00 | 0.0153 | 0.00 | 0.00 | 0.0155 | | 1.5 | 1.30 | 0.00 | 0.0152 | 0.00 | 0.00 | 0.0154 |
| | Fixed bias of Twr sensor | 0.5 | 25.39 | 2.59 | 0.0142 | 0.17 | 2.98 | 0.0144 | | 1.0 | 25.26 | 2.47 | 0.0146 | 0.22 | 2.47 | 0.0149 | | 1.5 | 25.26 | 2.51 | 0.0150 | 0.30 | 2.51 | 0.0153 |
| | Fixed bias of Tws sensor | 0.5 | 31.83 | 4.71 | 0.0133 | 7.96 | 4.80 | 0.0136 | | 1.0 | 31.27 | 5.36 | 0.0133 | 8.74 | 5.36 | 0.0136 | | 1.5 | 30.45 | 4.41 | 0.0145 | 7.35 | 4.41 | 0.0147 |
| | Fixed bias of Mw sensor | 5% | 22.19 | 6.96 | 0.0143 | 12.24 | 6.96 | 0.0146 |
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Note: cases that MDR increased are marked in bold.
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