Visible light communication system based on TCP/IP and method

A technology of visible light communication and analog signal, which is applied in the field of visible light communication system based on TCP/IP, can solve the problems of no description or report, and data not yet collected, and achieve the effect of high transmission power

Inactive Publication Date: 2014-05-28
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] At present, there is no description or report of similar technology to the pr...

Method used

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  • Visible light communication system based on TCP/IP and method
  • Visible light communication system based on TCP/IP and method
  • Visible light communication system based on TCP/IP and method

Examples

Experimental program
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Embodiment 1

[0068] like figure 1 As shown, the visible light communication system based on TCP / IP includes a transmitter and a receiver.

[0069] like figure 1 and 2 As shown, the transmitter includes a digital transmitting unit, a light transmitting unit and a light transmitting assembly connected in sequence; wherein, the light emitting assembly includes a light-emitting LED, and the digital transmitting unit includes a transmitting Ethernet controller, a transmitting signal processor and a D The / A converter and the D / A converter are connected to the light emitting unit. In this embodiment, the light-emitting LED is composed of 4 LEDs with a rated power of 3W connected in series.

[0070] The transmitting Ethernet controller is used to receive Ethernet data, convert the Ethernet data into a bit stream, and then send the bit stream to the transmitting signal processor; the bit stream contains channel coding; the transmitting The signal processor is used to process the bit stream, co...

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PUM

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Abstract

The invention discloses a visible light communication system based on TCP/IP. The system comprises a transmitter and a receiver. The transmitter comprises a digital transmission unit, a light transmission unit and a light transmission module, wherein the digital transmission unit, the light transmission unit and the light transmission module are connected in turn. The receiver comprises a light receiving module, a light receiving unit and a digital receiving unit, wherein the light receiving module, the light receiving unit and the digital receiving unit are connected in turn. The system and the method, which are provided by the invention, have the advantages of high transmission power, spectrum applying preventing, electromagnetic interference preventing, safety, confidentiality and high available bandwidth, and are capable of realizing high bandwidth and high rate wireless communication access at low cost.

Description

technical field [0001] The invention belongs to the technical field of visible light communication, and in particular relates to a visible light communication system and method based on TCP / IP. Background technique [0002] In recent years, there has been steady development of visible light communication systems using visible light. A visible light communication system using an LED lighting source as a light source has been proposed. [0003] A visible light communication technology has also been proposed in which information is transmitted at high speed by employing optical communication that blinks LEDs at a high speed that is visually unrecognizable. [0004] The visible light communication system employs a modulation method such as AM (Amplitude Modulation) as a communication method, which is based on changes in the brightness of visible light. In particular, the visible light emitted by the light source is modulated according to the transmission data (digital signal s...

Claims

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Application Information

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IPC IPC(8): H04B10/116
Inventor 袁卫文蒯震华吕振彬周雷陈大吾
Owner SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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