US 12,260,722 B2
Location tracking using beacons
Daniel Paul Tyler, Louisville, KY (US); and Balakrishna Subramaniam, Prospect, KY (US)
Assigned to United Parcel Service of America, Inc., Atlanta, GA (US)
Filed by United Parcel Service of America, Inc., Atlanta, GA (US)
Filed on Feb. 22, 2022, as Appl. No. 17/677,643.
Application 17/677,643 is a continuation of application No. 16/872,065, filed on May 11, 2020, granted, now 11,257,337.
Application 16/872,065 is a continuation of application No. 15/655,406, filed on Jul. 20, 2017, granted, now 10,650,653, issued on May 12, 2020.
Claims priority of provisional application 62/364,402, filed on Jul. 20, 2016.
Prior Publication US 2022/0180720 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G08B 13/24 (2006.01); G01S 5/00 (2006.01); G01S 5/02 (2010.01); G01S 19/48 (2010.01); G06Q 10/08 (2024.01); G06Q 10/0833 (2023.01); G06Q 50/28 (2012.01); H04W 52/02 (2009.01)
CPC G08B 13/2462 (2013.01) [G01S 5/00 (2013.01); G06Q 10/08 (2013.01); G06Q 10/0833 (2013.01); H04W 52/0212 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for monitoring locations of containers, the system comprising:
one or more status sensors;
a first wireless interface;
a second wireless interface; and
one or more processors configured to:
receive, at a first time, a first indication from the one or more status sensors that a first container has been loaded on an aircraft;
in response to receiving the first indication, continuously transmit a first sleep trigger signal to the first wireless interface, wherein the first sleep trigger signal comprises first data identifying a first specified period of time, the first specified period of time is based at least in part on an expected length of a first flight to transport the first container, and the first wireless interface, upon receiving the first sleep trigger signal and based on the first data, changes into a sleep mode to prevent from transmitting signals, upon an expiry of the first specified period of time, changes from the sleep mode into a listening mode to determine whether the first sleep trigger signal is no longer being transmitted, and upon determining that the first sleep trigger signal is no longer being transmitted, changes into an advertising mode to broadcast one or more first signals that are used to provide a first location of the first container;
receive, at a second time, a second indication from the one or more status sensors that a second container has been loaded on the aircraft; and
in response to receiving of the second indication, continuously transmit a second sleep trigger signal to the second wireless interface, wherein the second sleep trigger signal comprises second data identifying a second specified period of time that is different than the first specified period of time, the second specified period of time is based at least in part on an expected length of a second flight to transport the second container, and the second wireless interface, upon receiving the second sleep trigger signal and based on the second data, changes into the sleep mode to prevent from transmitting signals, upon an expiry of the second specified period of time, changes from the sleep mode into the listening mode to determine whether the second sleep trigger signal is no longer being transmitted, and upon determining that the second sleep trigger signal is no longer being transmitted, changes into the advertising mode to broadcast one or more second signals that are used to provide a second location of the second container.