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Data transmission method and system based on multi-frequency sound wave

A data transmission method and frequency sound wave technology, applied in the field of data transmission, can solve the problems of no error correction capability, non-continuous audio frequency, low frequency usage rate, etc.

Inactive Publication Date: 2016-07-20
BEIJING QIHOO TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing sound wave transmission method can transmit up to 10 numbers per second, the shortest time slot for each number is 100ms, the audio duration is 45ms-55ms, and the rest of the time is silent time, so the audio has no continuity and no error correction capacity, low frequency usage

Method used

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  • Data transmission method and system based on multi-frequency sound wave
  • Data transmission method and system based on multi-frequency sound wave
  • Data transmission method and system based on multi-frequency sound wave

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Embodiment Construction

[0050] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] figure 1 It is a flow chart of an embodiment of the data transmission method based on multi-frequency sound waves according to the present invention, such as figure 1 Shown:

[0052] Step 101, calculating an error detection code and an error correction code of the transmission data...

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Abstract

The invention discloses a data transmission method and system based on multi-frequency sound wave. The data transmission method comprises the following steps: calculating an error detection code and an error correction code of transmitted data, and adding the error detection code and the error correction code in the transmitted data; converting the transmitted data onto corresponding sound wave frequency to generate continuous audio information and play the continuous audio information, wherein each syllable of the audio information contains one or more frequency signals; when the audio information is received, analyzing the frequency signal from the audio information, and obtaining the transmitted data from the frequency signal. According to the data transmission method based on multi-frequency sound wave disclosed by the invention, the same syllable contains multiple kinds of frequency, so the encodable information of each syllable is increased and the code rate is improved, continuous errors are dispersed in an interlacing manner to improve the error correction ability and the anti-interference ability, two error detection modes and two error correction modes are used in a mixing manner to improve the error correction ability and the anti-interference ability, and synchronous alignment is carried out before decoding to improve the decoding success rate.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a data transmission method and system based on multi-frequency sound waves. Background technique [0002] Currently, existing communication devices send and receive data through a network or wirelessly. Generally, the ways to transmit information between devices are: 1) direct transmission through the network, such as through chat software; 2) indirect transmission through the network, such as email and cloud disk; 3) Bluetooth, which requires pairing and can only be point-to-point Transmission; 4) QR code; 5) NFC. For example, the communication methods between mobile phones or between mobile phones and computers include Bluetooth, WIFI, infrared, etc., but the requirements for the hardware configuration of the equipment are relatively high, and the requirements for the use scenarios are relatively strict. Scenes with high requirements such as transferring private dat...

Claims

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Application Information

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IPC IPC(8): H04B11/00
Inventor 叶剑杰
Owner BEIJING QIHOO TECH CO LTD
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