Condition Monitoring of Chain Sprocket Drive System Based on IoT Device and Convolutional Neural Network

Figure 7

Time-frequency analysis for the vibration by applying CWT to raw vibration signals. (a) Fault no. 1. (b) Fault no. 2. (c) Fault no. 3. (d) Fault no. 4. (e) Fault no. 5. (f) Fault no. 6. (g) Fault no. 7. (h) Fault no. 8. (i) Normal.

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