Shelf label communication method based on synchronous network, shelf label system and computer device
US12153969B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2024 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | May 6, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure provides a shelf label communication method based on a synchronous network, a shelf label system and a computer device. In the method, an electronic shelf label establishes a first timing task of a timer when receiving a timing service instruction; determines a timing duration of the first timing task based on a time difference between current local system time when the timing service instruction is received and the instruction execution system time, and starts the first timing task; the electronic shelf label cyclically calibrates a current timing duration in the first timing task based on the periodically received base-station system time, to obtain the calibrated current timing duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.