Table 3 Test pick data statistics.
From: Denoising research of shearer picks load signal based on MPE-VMD algorithm
Working condition | Statistical method | Test pick | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pick 1 | Pick 2 | Pick 3 | Pick 4 | Pick 5 | Pick 6 | Pick 7 | Pick 8 | Pick 9 | ||
No-load condition | Max | 43.17 | 50.48 | 51.28 | 43.63 | 59.55 | 59.46 | 51.88 | 59.42 | 59.06 |
Mean | 17.22 | 17.55 | 17.44 | 17.41 | 17.43 | 17.73 | 17.26 | 17.74 | 17.96 | |
Std | 7.11 | 7.367 | 7.589 | 7.226 | 7.545 | 7.857 | 7.716 | 7.761 | 8.157 | |
Straight-ahead regular cutting condition | Max | 4495.0 | 4895.0 | 5826.0 | 4263.0 | 4977.0 | 5664.0 | 3591.0 | 3530.0 | 3684.0 |
Mean | 936.4 | 1221.0 | 1187.0 | 1097.0 | 1069.0 | 927.6 | 807.0 | 857.7 | 1122.0 | |
Std | 591.4 | 759.4 | 692.2 | 572.3 | 596.4 | 635.5 | 462.3 | 520.0 | 700.8 | |
Slant-cutting condition | Max | 1994.0 | 2110.0 | 2074.0 | 1939.0 | 1954.0 | 2053.0 | 2105.0 | 2232.0 | 2088.0 |
Mean | 724.9 | 743.4 | 616.7 | 607.7 | 678.1 | 739.3 | 696.0 | 646.7 | 501.7 | |
Std | 452.0 | 486.0 | 443.3 | 442.0 | 465.9 | 478.1 | 486.8 | 485.9 | 389.0 | |
