Digital voice communication system and method based on visible light communication technology

Abstract

The invention discloses a digital voice communication system and method based on a visible light communication technology. The method comprises that: a signal sending end converts a voice signal into an analogue voice electric signal, converts the analogue voice electric signal into a digital voice electric signal, converts the digital voice electric signal into an optical signal and sends the optical signal; a signal forwarding end receives the optical signal, converts the optical signal into an analogue voice electric signal, converts the analogue voice electric signal into a digital voice electric signal, converts the digital voice electric signal into an optical signal and sends the optical signal; a signal receiving end receives the optical signal, converts into an analogue voice electric signal, converts the analogue voice electric signal into a digital voice electric signal, converts the digital voice electric signal into an analogue voice electric signal and converts the analogue voice electric signal into a voice signal. According to the invention, the voice signal is transmitted through a visible optical signal, the electromagnetic interference is reduced, the damage to peripheral sensitive electronic equipment is avoided, and the system cost and the complexity are effectively reduced by using an LED illumination system.

Description

technical field [0001] The present invention relates to the technical field of visible light communication, in particular to a digital voice communication system and method based on visible light communication technology. Background technique [0002] Visible Light Communication (VLC) is a new type of wireless optical communication technology developed on the basis of white LED technology. Visible light communication has the advantages of strong confidentiality, no electromagnetic interference, and no need for spectrum certification, so it has great application prospects in many fields. [0003] In a noisy indoor environment such as a computer room, due to the huge background noise, people cannot carry out normal language communication in it, so it is necessary to use certain technical aids to complete the voice transmission process. Usually, RF communication technology, Bluetooth communication technology or wifi communication technology can be used to convert the voice sign...

AI Technical Summary

Problems solved by technology

[0004] However, in some environments, it is extremely sensitive to electromagnetic interference, and uncontrolled electromagnetic signals are likely to have adverse effects on surrounding electronic equipment, and even affect its normal operation. Therefore, the use of radio signals for data communication should be avoided as much as possible to reduce the risk of harm. possibility

Images