Title:
METHOD FOR TRACKING LOCATION OF ELECTRONIC SHELF LABEL AND ELECTRONIC SHELF LABEL SYSTEM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/085837
Kind Code:
A1
Abstract:
Disclosed is a method for tracking the location of an electronic shelf label (ESL) node by an ESL system. The present method comprises: a step in which an ESL node receives a location tracking command; a step in which the ESL node identifies at least one reference node mounted on a shelf in a predetermined location, on the basis of the location tracking command; a step in which the ESL node transmits at least one response signal to the at least one reference node in response to at least one ultra-wideband (UWB) signal that is broadcasted by the at least one reference node; and a step in which a server receives angle information and distance information between the ESL node and the at least one reference node, calculated from the at least one response signal, and calculates a detailed shelf location of the ESL node.
Inventors:
KIM JISUNG (KR)
Application Number:
PCT/KR2020/015083
Publication Date:
April 28, 2022
Filing Date:
October 30, 2020
Export Citation:
Assignee:
GEOPLAN CO LTD (KR)
International Classes:
G09F3/20; H04W4/80
Foreign References:
| KR20170009045A | 2017-01-25 | |||
| KR20100022888A | 2010-03-03 | |||
| KR20170025311A | 2017-03-08 | |||
| KR20130022447A | 2013-03-07 | |||
| KR20170101051A | 2017-09-05 |
Attorney, Agent or Firm:
JANG, Wansoo (KR)
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