A Condition Monitoring Method of Hydraulic Gear Pumps Based on Multilevel Mechanism-Data Fusion

Figure 18

Metric comparison of linear kernel SVC models across various channels under data-level and feature-level fusion, where Channel 1 represents flow data, Channel 2 represents volumetric efficiency data, Channel 3 represents the vibration signals in the -direction, Channel 4 represents the vibration signals in the -direction, and Channel 5 represents sequence .

(a) Accuracy

(b) Precision

(c) Recall

(d) -score