公开(公告)号：WO2022224062A1

公开(公告)日：2022-10-27

申请号：PCT/IB2022/053017

申请日：2022-03-31

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： MANNER, Marie D. ,  CARLSON, Lydia R. ,  KANUKURTHY, Kiran S. ,  KIM, Bongjun ,  KLOC, Longin J. ,  KRUEGER, Greg A. ,  SILSBY, Gary T.

IPC: H04B17/23 ,  E04G21/32 ,  H04L67/125 ,  G06V20/52

Abstract: A personal protective equipment (PPE) article and interrogation device, where the article of PPE outputs a data rich audio signal, that encodes various information concerning the article of PPE. The audio signal is received by the interrogation device, which analyzes the audio signal and converts it into PPE-related information, such as the type of PPE.