B Company connector fastening sound detection

B Company connector fastening sound detection
Connector Clicks

Connector fastening quality inspection

B Company connector fastening sound detection

Subtle fastening sounds quantify soft-connection defect standards for EV transmission connectors

Target sound

Connector Clicks

Project overview

A case that identifies loose connector fastening through subtle sounds that are hard to hear manually

Field challenge

  • Missed fastening was a high-risk quality issue tied directly to driving stability
  • The fastening signal was too small to distinguish reliably by ear
  • Work methods and recording conditions kept changing in the field

Outcome summary

97.73%Cycle judgment accuracy
97%+Fastening sound classification accuracy
SNR 1.77dBSubtle signal detection