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Acoustic wave communication method

A communication method, sound wave technology, applied in the field of sound wave communication, can solve the problems of information transmission loss, vulnerability to environmental influence, user loss, etc., and achieve the effect of simple encryption and decryption method, increased difficulty of cracking, and good use effect

Inactive Publication Date: 2019-01-15
深圳市琦志航智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sound wave communication method is a method of communication through sound wave emission information, but with the development of science and technology, people's requirements for sound wave communication methods are getting higher and higher, resulting in the traditional sound wave communication methods can no longer meet people's needs;
[0003] There are certain disadvantages in the use of the existing acoustic wave communication method. First, the existing acoustic wave communication method is not always safe enough, prone to information leakage, and brings certain losses to the user. Secondly, the existing acoustic wave communication method is easily affected by the environment. Influence, the sound waves in the environment interfere with the normal sound wave transmission, resulting in the loss of information transmission, for this reason, we propose a sound wave communication method

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Obtain the data to be transmitted, insert the MD5 code, and encode the data. First, check whether the data to be transmitted has illegal characters to ensure a valid character string. Then, preprocess the character string. The string is compressed, and finally, the acoustic amplitude data of the processed data is generated;

[0025] (2), calculate the amplification of each sound wave in the data encoding obtained in step (1), then superimpose to generate sound wave amplification data, and transmit, the amplitude data detection range is -32768-32767, after each transmission of 1 character Add an interruption time, the interruption time is 0.3s;

[0026] (3) Distribute the key through the central server, establish a secure channel, change the key randomly, and establish a secure channel to obtain the sound wave amplification data after noise reduction and interference. Second, use the fast Fourier transform calculation method, and then use the fast Fourier transform ...

Embodiment 2

[0034] (1) Obtain the data to be transmitted, insert the MD5 code, and encode the data. First, check whether the data to be transmitted has illegal characters to ensure a valid character string. Then, preprocess the character string. The string is compressed, and finally, the acoustic amplitude data of the processed data is generated;

[0035] (2), calculate the amplification of each sound wave in the data encoding obtained in step (1), then superimpose to generate sound wave amplification data, and transmit, the amplitude data detection range is -32768-32767, after each transmission of 1 character Add an interruption time, the interruption time is 0.3s;

[0036] (3) Distribute the key through the central server, establish a secure channel, change the key randomly, and establish a secure channel to obtain the sound wave amplification data after noise reduction and interference. Second, use the fast Fourier transform calculation method, and then use the fast Fourier transform ...

Embodiment 3

[0041] (1) Obtain the data to be transmitted, insert the MD5 code, and encode the data. First, check whether the data to be transmitted has illegal characters to ensure a valid character string. Then, preprocess the character string. The string is compressed, and finally, the acoustic amplitude data of the processed data is generated;

[0042](2), calculate the amplification of each sound wave in the data encoding obtained in step (1), then superimpose to generate sound wave amplification data, and transmit, the amplitude data detection range is -32768-32767, after each transmission of 1 character Add an interruption time, the interruption time is 0.3s;

[0043] (3) Distribute the key through the central server, establish a secure channel, change the key randomly, and establish a secure channel to obtain the sound wave amplification data after noise reduction and interference. Second, use the fast Fourier transform calculation method, and then use the fast Fourier transform t...

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Abstract

An acoustic wave communication method includes such steps as obtaining data to be transmitted, inserting MD5 code, encoding data, checking data to be transmitted, preprocessing character string, compressing character string, and finally generating acoustic wave amplitude data of processed data, checking whether illegal character is possessed, and ensuring valid character string. The amplitude of each sound wave in the obtained data encoding is calculated, and then the amplitude data are superposed to generate acoustic wave amplitude data and transmitted. 32768-32767, adde an interception timeof 0.3 s after every 1 character transmit. The invention discloses an acoustic wave communication method, which can effectively increase the difficulty of decoding, so that the transmitted informationcannot be decoded in a short time range, and can effectively reduce the environmental noise in other frequency bands by comparing the frequency energy of the basic acoustic wave, thus bringing a better use prospect.

Description

technical field [0001] The invention relates to the field of sound wave communication, in particular to a sound wave communication method. Background technique [0002] The acoustic wave communication method is a method of communicating and exchanging information by transmitting information through acoustic waves, but with the development of science and technology, people's requirements for the acoustic wave communication method are getting higher and higher, resulting in the traditional acoustic wave communication method can no longer meet the needs of people; [0003] The existing sonic communication methods have certain drawbacks in use. First, the existing sonic communication methods are often insufficient in security, prone to information leakage, and cause certain losses to users. Secondly, the existing sonic communication methods are easily affected by the environment. Influence, the sound waves in the environment interfere with the transmission of normal sound waves,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B11/00H04L9/06
CPCH04B11/00H04L9/0643
Inventor 张亚辉
Owner 深圳市琦志航智能科技有限公司
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