US 11,780,481 B2
Methods and systems for worker protection system with ultra-wideband (UWB) based anchor network
Richard C. Carlson, Manchester-by-the-sea, MA (US); Kurt A. Gunther, Woodstock, IL (US); and Sara J. Woitel, Lake Zurich, IL (US)
Assigned to METROM RAIL, LLC, Lakemoor, IL (US)
Filed by Metrom Rail, LLC, Cryslal Lake, IL (US)
Filed on Nov. 4, 2022, as Appl. No. 17/981,142.
Application 17/981,142 is a continuation of application No. 16/910,804, filed on Jun. 24, 2020, granted, now 11,492,027.
Application 16/910,804 is a continuation in part of application No. 16/460,302, filed on Jul. 2, 2019, granted, now 10,926,783, issued on Feb. 23, 2021.
Application 16/460,302 is a continuation of application No. 15/623,996, filed on Jun. 15, 2017, granted, now 10,336,353, issued on Jul. 12, 2019.
Application 15/623,996 is a continuation in part of application No. 15/078,427, filed on Mar. 23, 2016, granted, now 10,179,595, issued on Jan. 15, 2019.
Claims priority of provisional application 62/865,688, filed on Jun. 24, 2019.
Claims priority of provisional application 62/350,520, filed on Jun. 15, 2016.
Claims priority of provisional application 62/177,683, filed on Mar. 23, 2015.
Prior Publication US 2023/0058941 A1, Feb. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B61L 23/06 (2006.01); B61L 25/02 (2006.01); B61L 15/00 (2006.01); G01S 19/17 (2010.01); G08B 25/01 (2006.01); G01S 19/50 (2010.01); B61L 27/70 (2022.01); G01S 19/01 (2010.01)
CPC B61L 23/06 (2013.01) [B61L 15/0027 (2013.01); B61L 25/021 (2013.01); B61L 25/025 (2013.01); G01S 19/01 (2013.01); B61L 27/70 (2022.01); B61L 2205/04 (2013.01); G01S 19/50 (2013.01); G08B 25/016 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for worker protection, the system comprises:
a remote server located in a back office of a railway network; and
a wayside unit placed on or near a track; wherein each wayside unit comprises one or more circuits configured to:
transmit and/or receive wireless signals, wherein the signals comprise ultra-wideband (UWB) signals; and
process transmitted and/or received signals;
wherein the wayside unit is configured to:
form or become a node in a work zone network, based on UWB communications, corresponding to a work zone in an area surrounding or in proximity to the wayside unit;
when the work zone network is formed, generate based on ranging information to a train traversing the track, notifications relating to the train and/or the work zone; and
communicate with the remote server to send and/or receive information or messages relating to the work zone network.