Indoor navigation method of handheld terminal, handheld terminal, and storage medium
US10317217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 21, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/003
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An indoor navigation method of a handheld terminal, which includes: after receiving an instruction, obtaining an image within a scope of a lens, performing analysis on a barcode of a barcode label in the image, obtaining identifier information of each barcode label, selecting color blocks from at least two barcode labels; calculating coordinates of each of the color blocks in a pixel coordinate system according to a position of each selected color block in the image; and calculating coordinates corresponding to each of the color blocks in a coordinate system on the basis of association data of identifier information of the barcode labels and coordinates of the color blocks in the coordinate system according to a barcode label at which each selected color block is located, and calculating coordinates of the handheld terminal in the coordinate system according to a coordinate calculation rule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.