High-speed visible-light chaotic security communication device based on visible light LED

A technology of secure communication and visible light, applied in secure communication through chaotic signals, secure communication devices, digital transmission systems, etc., can solve problems such as information being easily broken by secret thieves, weak information security guarantee, etc., and achieve the effect of improving security performance.

Active Publication Date: 2017-01-11
SOUTHWEST UNIV
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Problems solved by technology

However, the information security guarantee in the existing visible light communication is still very weak, and the information in the visible light communication is easy to be broken by thieves

Method used

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  • High-speed visible-light chaotic security communication device based on visible light LED
  • High-speed visible-light chaotic security communication device based on visible light LED

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Embodiment Construction

[0018] A high-speed visible light chaotic secure communication device based on visible light LEDs of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] attached figure 1 It is a schematic structural diagram of the main oscillator module of a high-speed visible light chaotic secure communication device based on visible light LED; figure 2 It is a schematic structural diagram of a slave oscillator module of a high-speed visible light chaotic secure communication device based on visible light LEDs. As can be seen from the figure, a high-speed visible light chaotic security communication device based on visible light LEDs in the present invention includes a master chaotic oscillator module and a slave chaotic oscillator module; the master chaotic oscillator module generates a chaotic signal through its own feedback loop, and the modulator 7 sends The useful information is mixed with the chaotic s...

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Abstract

The invention provides a high-speed visible-light chaotic security communication device based on a visible light LED. The device comprises a main chaotic oscillator module and an auxiliary chaotic oscillator module; the main chaotic oscillator module generates a chaotic signal through a self feedback loop, mixes useful information with the chaotic signal to generate a chaotic carrier signal through modulator and transmits the chaotic carrier signal mixed with the useful information to the auxiliary chaotic oscillator module; the auxiliary chaotic oscillator module receives the chaotic carrier signal transmitted by the main chaotic oscillator module and subtracts the chaotic carrier signal from a chaotic signal generated by the auxiliary chaotic oscillator through a self feedback loop to obtain the useful information mixed in the chaotic carrier signal. The device has the advantages that by mixing the useful information with the chaotic carrier signal in the main chaotic module through the modulator, the useful information is hidden in the chaotic signal, and then the safety performance of visible-light communication can be significantly improved conveniently.

Description

technical field [0001] The invention relates to the technical field of secure communication, in particular to a high-speed visible light chaotic secure communication device based on visible light LEDs. Background technique [0002] Visible light communication technology is a communication method that uses light in the visible light band as an information carrier to directly transmit optical signals in the air; with the in-depth development and continuous advancement of global social informatization, communication users continue to increase. , High speed, anti-interference and strong practicability, etc., have developed very rapidly. However, the information security guarantee in the prior art visible light communication is still very weak, and the information in the visible light communication is easy to break through by stealers. In addition, chaos refers to a phenomenon similar to randomness and irregularity that exists in deterministic nonlinear systems. Chaotic signals ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/11H04L9/00
CPCH04B10/11H04L9/001
Inventor 吴加贵段书凯段丽娟蔡倩熊雪艳
Owner SOUTHWEST UNIV
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