Near-field optical wireless high-speed simple interactive communication system and method used between electronic devices

Abstract

The invention discloses a near-field optical wireless high-speed simple interactive communication system and method used between electronic devices. Transmitted data information is transmitted to the opposite side through photo-electric conversion and with light serving as an information carrier, the opposite side restores light signals into electric signals through a photoelectric detector, and accordingly high-speed communication between the devices is achieved. Due to limitations of the devices in the prior art, the maximum communication speed is 100Mbps, and the communication speed of the system far exceeds that of an existing near-field non-contact transmission method. The system and method can be applied to mobile phones, intelligent terminals, tablet computers, notebook computers and other electronic devices, information high-speed wireless interconnection can be achieved, and the system and method have the advantages that high speed is achieved, safety and confidentiality are achieved, environment protection is achieved, no radiation exists and interactive communication is achieved, and have great prospects in the field of information non-contact transmission between intelligent terminals in the future.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and relates to a near-field optical wireless high-speed and simple interactive communication system and method between electronic devices, in particular to a short-distance optical wireless communication technology that allows non-contact point-to-point data transmission between electronic devices. Background technique [0002] With the rapid development of electronic devices and large-capacity data communication services, people have more and more urgent requirements for wireless transmission between electronic devices to transmit large amounts of data and high-efficiency information. Obviously, the wireless interconnection between electronic devices is an important bottleneck that restricts the improvement of data communication between devices. At present, there are mainly three forms of near-field non-contact communication between electronic devices: 1. Bluetooth wireless communi...

AI Technical Summary

Problems solved by technology

NFC adopts a unique signal attenuation technology. Compared with radio frequency identification, NFC has the characteristics of short distance, high bandwidth, and safe transmission. However, its current fastest data transmission rate is only 424kbps (the theoretical maximum transmission rate is 868kbps), which is its biggest disadvantage

[0003] At present, for the communication technology of near-field visible light as an information carrier, for example, the Chinese invention patent application with the publication number CN104022820A discloses "Near-field identification communication system and method between equipment using optical transmission, access control system", which is mainly an identification system. To realize the identification between two devices, instead of transmitting large-capacity information, the technology adopted is only a simple modulation of light intensity and flash frequency, so the transmission information is very small; and processing requests and confirmations through the server not only prolongs the transmission time , and its security needs to be improved

There is also a Chinese invention patent application with a publication number of CN103490812A, which discloses "Mobile Phone Near-Field Communication System and Method Based on Visible Light". transfer, so the transfer rate is also very low, only 200kbps

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