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Visible light communication data sending and receiving method and device, transmission system

A data transmission method and visible light communication technology, applied in the field of optical communication, can solve problems such as no solution proposed, and achieve the effect of improving data throughput and data transmission efficiency

Inactive Publication Date: 2018-06-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For the above-mentioned problems in related technologies, no effective solution has been proposed yet

Method used

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  • Visible light communication data sending and receiving method and device, transmission system
  • Visible light communication data sending and receiving method and device, transmission system
  • Visible light communication data sending and receiving method and device, transmission system

Examples

Experimental program
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Effect test

Embodiment 1

[0031] figure 1 It is a flowchart of a data sending method for visible light communication according to Embodiment 1 of the present invention. like figure 1 As shown, the method includes:

[0032] Step S102, mapping a data stream to be sent into a multi-layer signal;

[0033] Step S104, transmitting the multi-layer signal to the light emitting source module corresponding to the multi-layer signal for transmission.

[0034] Through the above processing process, since the data stream to be sent is sent hierarchically (that is, the layered signals are sent in parallel in layers), the efficiency of data transmission is improved.

[0035] In step S102, there are many ways to map a data stream into a multi-layer signal, for example, it can be realized in the following way: after a single data stream is encoded and modulated, it is divided into n (n is a positive integer) layer signals , enter n transmitting branches, and finally transmit the layered modulated signal through the ...

Embodiment 2

[0045] This embodiment corresponds to Embodiment 1, and is described from the receiving side of the optical signal. Figure 4 It is a flowchart of a data receiving method for visible light communication according to Embodiment 2 of the present invention. like Figure 4 As shown, the method includes:

[0046] Step S402, respectively receiving multi-layer signals sent by each optical emission source module, wherein the multi-layer signals are obtained by mapping a data stream to be sent by the sending side of the multi-layer signals;

[0047] Step S404, combining the above-mentioned multi-layer signals into the above-mentioned data stream.

[0048] Through the above-mentioned processing steps, since the above-mentioned layered signals can be received in layers, the data receiving efficiency of visible light communication is improved, and the data transmission efficiency is further improved.

[0049] Similar to Embodiment 1, in this embodiment, each layer signal in the multi-l...

Embodiment 3

[0056] This embodiment provides a data transmission system for visible light communication, such as Figure 6 As shown, the system includes:

[0057] A layer mapping module 60, connected to the optical emission source module 62, for mapping a data stream to be sent into a multi-layer signal;

[0058] A plurality of light emitting source modules 62 are connected to a light receiving module 64 for converting multi-layer signals into light signals for transmission. It should be noted, Figure 6 For the convenience of description, only one light emitting source module 62 is shown to be connected to related modules, but the light emitting source module 62 is not limited to one, when there are multiple light emitting source modules 62, it and related modules The connection method is the same.

[0059] A plurality of light receiving modules 64 are connected to the detection module 66 for respectively receiving the light signals sent by the light emitting source modules and convert...

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Abstract

The invention provides a data sending and receiving method and device for visible light communication, and a transmission system. Wherein, the above-mentioned data sending method includes: mapping a data stream to be sent into a multi-layer signal; and transmitting the multi-layer signal to an optical emission source module corresponding to the multi-layer signal for sending. The technical solution provided by the present invention solves technical problems such as low communication efficiency of the visible light communication solution in the related art, thereby improving the data throughput in the visible light communication, and further improving the data transmission efficiency.

Description

technical field [0001] The present invention relates to the field of optical communication, in particular, to a data sending and receiving method and device for visible light communication, and a transmission system. Background technique [0002] Wireless communication technology using visible light has attracted attention from academia and industry in recent years. In particular, as lighting devices such as light-emitting diodes (light-emitting diodes, referred to as LEDs) have been widely used rapidly, the feasibility study of using semiconductor LEDs to realize wireless communication network coverage while realizing lighting It is being carried out by many related companies, and the appropriate way to combine visible light communication with wireless sensor network, wireless local area network (WLAN) and power line communication system is also being discussed. It has been confirmed that this communication method will be one of the optional short-distance ultra-wideband c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/116
CPCH04B10/116
Inventor 郭阳
Owner ZTE CORP