Estimation of a position of an electronic label

US10359500B2 · kind B2 · utility

Assignee

• Pricer AB · SE

Inventors

• Anders Lindgren · Alvesta, SE
• Ernst Håkan Sjödin · Stockholm, SE

Key dates

• Filing date: Feb 16, 2017
• Grant date: Jul 23, 2019
• Expiry date: Sep 17, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S5/0295
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system and method for estimating a position of an electronic label in an area are provided. A plurality of devices is distributed over the area. Information is obtained about signal strengths recorded at the respective devices when attempting to receive a wireless signal transmitted by the electronic label. Weights are formed for positions associated with the devices, based on the signal strengths recorded at the corresponding devices. The position of the electronic label is estimated as a weighted average including the positions, wherein the positions are weighted by the weights. In some embodiments, information is instead obtained about signal strengths recorded at the electronic label when attempting to receive wireless signals transmitted by the respective devices. The present method may for example be employed to estimate a position of a product in a retail store.