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1. (WO2017184702) WORKER SAFETY SYSTEM

Pub. No.:    WO/2017/184702    International Application No.:    PCT/US2017/028320
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Thu Apr 20 01:59:59 CEST 2017
IPC: H04L 29/08
H04W 48/16
H04W 56/00
H04W 84/20
Applicants: INDUSTRIAL SCIENTIFIC CORPORATION
Inventors: CROUTHAMEL, L., Robert
ARUNACHALAM, Raghu
HAAS, Benjamin
XIN, Henry
MCCRACKEN, Lisa
JUBECK, Scott
TIMCO, Daniel, James
Title: WORKER SAFETY SYSTEM
Abstract:
A network for connecting a plurality of network nodes includes a leader node and a plurality of follower nodes. The leader node transmits a sync message to the plurality of follower nodes indicating a beginning of a network interval, wherein the leader node and the plurality of follower nodes transmit information during a transmission period and do not transmit information during a sleep period of the network interval, and wherein during a predetermined time of the transmission period of the network interval each of the follower nodes that received the sync message transmit a message advertising one or more properties of the leader node. The network nodes are environmental sensing devices that are part of a worker safety system.