US 12,302,257 B2
Asset-tracking system
Xiangyu Wang, Eindhoven (NL); Armand Michel Marie Lelkens, Heerlen (NL); and Octavio Alejandro Santana Arnaiz, Eindhoven (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 18/024,310
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Aug. 3, 2021, PCT No. PCT/EP2021/071661
§ 371(c)(1), (2) Date Mar. 2, 2023,
PCT Pub. No. WO2022/048844, PCT Pub. Date Mar. 10, 2022.
Claims priority of application No. 20194226 (EP), filed on Sep. 3, 2020.
Prior Publication US 2023/0247565 A1, Aug. 3, 2023
Int. Cl. H04W 52/24 (2009.01); G01S 13/75 (2006.01); G06K 19/07 (2006.01)
CPC H04W 52/245 (2013.01) [G01S 13/751 (2013.01); G06K 19/0712 (2013.01); H04W 52/241 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A target tag for object tracking, wherein the target tag is configured to detect listener beacon signals emitted by a plurality of listener nodes, wherein the listener beacon signals comprise one or more of transmission power-related data and receiver sensitivity-related data of the plurality of listener nodes; wherein the target tag has access to said transmission power-related data and said receiver sensitivity-related data of the plurality of listener nodes, and wherein in a tag operational mode the target tag is configured to:
detect the listener beacon signals and to determine related listener beacon signal strengths and one or more of the transmission power-related data and the receiver sensitivity-related data;
determine a tag transmission power based on the related listener beacon signal strengths, the transmission power-related data, the receiver sensitivity-related data, and a predetermined goal number of reached listener nodes, wherein the predetermined goal number of reached listener nodes includes an upper goal number, wherein for each listener node of the plurality of listener nodes, the target tag determines a receiver sensitivity Ri based on the receiver sensitivity-related data, a listener transmission power Li based on the transmission power-related data, and a signal strength Si based on the related listener beacon signal strengths, and wherein the target tag is configured to determine the tag transmission power Tt such that for less than or equal to the upper goal number of the plurality of listener nodes applies that Tt≥Ri+Li−Si; and
emit the target beacon signal at the tag transmission power.