公开(公告)号：US20240214792A1

公开(公告)日：2024-06-27

申请号：US17905777

申请日：2021-03-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Vijay K. Gidla ,  Magnus K. Petersson ,  Henrick J. Sjöman ,  David L. Albean ,  Paul D. Henry ,  James L. Fiocca

IPC: H04W4/80 ,  H04B1/715 ,  H04B5/72 ,  H04W16/14 ,  H04W84/18

CPC classification number: H04W4/80 ,  H04B1/715 ,  H04B5/72 ,  H04W16/14 ,  H04B2001/7154 ,  H04W84/18

Abstract: A short-range communication system is presented that includes a system control unit and a personal protective equipment device. The system control unit includes a network creator configured to create a short-range network on a wireless frequency, an interference detector configured to detect a device on an interfering frequency, and a control unit frequency hopper configured to, based on the detected device, scan a frequency range for an open frequency and switch the system control network to the open frequency. The personal protective equipment device includes a network joiner configured to join the short-range network and a device frequency hopper configured to switch the personal protective equipment device to the open frequency.