System and method for communication by means of visible light for underground tunnels
US10554308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2016 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Dec 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B13/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a system for communication by means of visible light and to the corresponding method, where a channel for transmitting visible light has abnormal conditions, for example, in tunnels of an underground mine with a high degree of dust concentration in the atmosphere and also in rural and urban tunnels in which the fumes generated by an accident produce high concentrations of powdery material in the transmission channel. This problem is solved by using in the system a transceiver for transmitting visible light, a means for receiving visible light, and a Deep Neural Network (DNN), with a specific arrangement, proximity or distance, of ceiling-mounted transceivers formed by LEDs lamps (arrangement of the plurality of LEDs) and Digital Single Lens Reflex (D-SLR) transceivers (formed by reflex cameras in which the lens that forms the image also provides the image in the viewfinder). According to the invention, together all the elements forming the system allowing channel noise to be removed, being able to transmit using visible light with diversity, even if the channel appears interrupted to the human eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.