US 12,324,960 B2
Local positioning system using two-way ranging
Stéphane Louis Smith, Richmond, TX (US); and Yves Kevin Smith, Richmond, TX (US)
Assigned to Integrated Bionics, Inc., Houston, TX (US)
Filed by Integrated Bionics, Inc., Houston, TX (US)
Filed on Jan. 19, 2024, as Appl. No. 18/417,205.
Application 18/417,205 is a continuation of application No. 18/156,652, filed on Jan. 19, 2023, granted, now 11,911,659.
Claims priority of provisional application 63/266,911, filed on Jan. 19, 2022.
Prior Publication US 2024/0149114 A1, May 9, 2024
Int. Cl. A63B 24/00 (2006.01)
CPC A63B 24/0021 (2013.01) [A63B 2024/0025 (2013.01); A63B 2220/13 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A local positioning system comprising:
a plurality of anchors placed within a facility;
three or more calibration tags, temporarily placed at respective predetermined positions within the facility; and
a computing device for:
instructing the plurality of anchors and the plurality of calibration tags to use two-way-ranging communications to measure respective distances between each anchor of the plurality of anchors and at least three of the three or more calibration tags;
using the predetermined positions of the plurality of calibration tags and the measured distances to calculate a respective calculated location of each of the plurality of anchors, and
determining a position of a first movable tag based on respective distances between at least some of the plurality of anchors and the first movable tag measured using two-way-ranging communication and the respective calculated locations of the at least some of the plurality of anchors.