Early Fault Diagnosis Technology for Bearings Based on Quantile Multiscale Permutation Entropy

Table 1

Early fault diagnosis of different algorithms.

Algorithm	0.25 QMPE	0.5 QMPE	0.75 QMPE
Failure time	83 h	82.5 h	82.33 h
Algorithm	Feng et al. [9]	Feng et al. [10]	Wang et al. [12]
Failure time	88.83 h	86.8 h	96.66 h
Algorithm	Yin et al. [25]	Zeng et al. [26]	Xu [27]
Failure time	96.7 h	94.2 h	88.83 h