CN103957220A - Data transmission method and system based on frequency conversion sound waves - Google Patents
Data transmission method and system based on frequency conversion sound waves Download PDFInfo
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- CN103957220A CN103957220A CN201410209606.6A CN201410209606A CN103957220A CN 103957220 A CN103957220 A CN 103957220A CN 201410209606 A CN201410209606 A CN 201410209606A CN 103957220 A CN103957220 A CN 103957220A
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Abstract
The invention discloses a data transmission method and system based on frequency conversion sound waves. The method includes the steps that step 1, data needing to be transmitted are converted into hexadecimal numbers at the sending side; step 2, detection sound waves are played and are recorded in a self-started mode, the recording result is analyzed, the sound wave with the highest signal to noise ratio is found to serve as the transmission frequency; step 3, preparing data are encoded according to the determined transmission frequency to generate a data content sound wave file; step 4, the encoding frequency and the data content are played in a sound wave signal mode according to a prescribed form; step 5, sound wave signals are monitored at the receiving side, and frequency signals are derived; step 6, the data content sound waves are decoded by using the determined frequency, the preparing data are acquired; step 7, the preparing data are reverted to raw data, and data transmission is finished. By means of the data transmission method and system based on the frequency conversion sound waves, the optimal sound wave frequency is automatically selected according to the environmental noise, the reliability of information transmission can be improved, on the other hand, the transmitted frequencies are different every time, so that the difficulty of illegal monitoring is increased.
Description
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Technical field
Patent of the present invention relates to a kind of data transmission technology, relates in particular to a kind of data transmission method and system based on frequency conversion sound wave.
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Background technology
Along with popularizing gradually of smart machine, the establishment condition of Internet of Things reaches its maturity.Realize Internet of Things, between equipment, information exchange is absolutely necessary, and this just requires a kind of data transfer means of high efficient and reliable.
The technological means of transmitting at present data between equipment is many, as RFID, bluetooth, WIFI etc., but has in actual applications many problems, as: 1, need specialized hardware support, must on equipment, install proprietary hardware chip additional; 2, need to carry out complicated device pairing; 3, need to be in same network environment, equipment must access same local area network (LAN) just can carry out transfer of data; 4, equipment manufacturing cost is higher.
Summary of the invention
For the weak point existing in above-mentioned technology, the invention provides a kind of lowly to hardware requirement, to transmit reliable and stablely, transmission both sides connect data transmission method easily.
For achieving the above object, the invention provides a kind of data transmission method based on frequency conversion sound wave, comprise following step:
Step 1, is first converted to the data of required transmission 16 system numbers at transmitting terminal, represents with these 16 characters of 0 ~ F;
Step 2, plays and detects sound wave, and carries out from recording, analyzes recording result, finds the highest one group of signal to noise ratio as transmission frequency;
Step 3, encodes to preparing data by the transmission frequency that step 2 is definite, produces data content wave file;
Step 4, by coding frequency and data content in accordance with regulations form play in the mode of acoustic signals;
Step 5, monitors acoustic signals at receiving terminal, and parses frequency signal;
Step 6, decodes to data content sound wave by definite frequency, obtains preparing data;
Step 7, is reduced to initial data by preparation data, completes transfer of data.
Wherein, in described step 2, the detection sound wave of broadcasting is five built-in class frequency sounds.
The high frequency sound wave of the good concealment that wherein, described detection sound wave is transmitting procedure.
The present invention also provides a kind of transfer of data method, system based on frequency conversion sound wave, comprising:
Transmitting terminal, its role is to, and first the data of required transmission is converted to 16 system numbers; Play and detect sound wave again, and carry out from recording, analyze recording result, find the highest one group of signal to noise ratio as transmission frequency; Then encode to preparing data by definite transmission frequency, produce data content wave file;
Finally by coding frequency and data content in accordance with regulations form play in the mode of acoustic signals;
Receiving terminal, its role is to, and first monitors acoustic signals, and parses frequency signal; By definite frequency, data content sound wave is decoded again, obtain preparing data; Finally preparation data are reduced to initial data, complete transfer of data.
Wherein, described transmitting terminal and receiving terminal are the intelligent terminal that carries microphone and loud speaker.
Wherein, described intelligent terminal is smart mobile phone, computer or panel computer.
Compared to prior art, data transmission method based on frequency conversion sound wave provided by the invention, adopt the technical scheme of pure software, utilize microphone and the loud speaker that the equipment such as mobile phone, computer, PAD carry to play and gather sound wave, do not need the support of other specialized hardwares, greatly reduce compared with the method such as existing NFC, Quick Response Code and use threshold and produce and promote cost; According to the frequency of sound wave of environmental noise automatic adaptation the best, can strengthen signal to noise ratio according to environmental noise situation on the one hand, improve communication reliability, because the frequency of each transmission is not quite similar, greatly increase the difficulty of illegally intercepting on the other hand; This transmission method does not need to carry out in advance device pairing, does not need network support yet, and it is convenient that transmission both sides connect, and only needs two equipment near completing transfer of data.
Brief description of the drawings
Fig. 1 is the flow chart of the data transmission method based on frequency conversion sound wave provided by the invention.
Embodiment
In order more clearly to explain the present invention, below in conjunction with accompanying drawing, the present invention is further described.
Refer to Fig. 1, a kind of data transmission method based on frequency conversion sound wave provided by the invention, comprises following step:
Step 1, is first converted to the data of required transmission 16 system numbers at transmitting terminal, represents with these 16 characters of 0 ~ F;
Step 2, plays and detects sound wave, and carries out from recording, analyzes recording result, finds the highest one group of signal to noise ratio as transmission frequency;
Step 3, encodes to preparing data by the transmission frequency that step 2 is definite, produces data content wave file;
Step 4, by coding frequency and data content in accordance with regulations form play in the mode of acoustic signals;
Step 5, monitors acoustic signals at receiving terminal, and parses frequency signal; Step 6, decodes to data content sound wave by definite frequency, obtains preparing data; Step 7, is reduced to initial data by preparation data, completes transfer of data.
Compared to prior art, the data transmission method based on frequency conversion sound wave provided by the invention, tool has the following advantages:
First, adopt the technical scheme of pure software, utilize microphone and the loud speaker that the equipment such as mobile phone, computer, PAD carry play and gather sound wave, do not need the support of other specialized hardwares, greatly reduce to use threshold and produce compared with the method such as existing NFC, Quick Response Code and promote cost;
The second, according to the frequency of sound wave of environmental noise automatic adaptation the best, can strengthen signal to noise ratio according to environmental noise situation on the one hand, improve communication reliability, because the frequency of each transmission is not quite similar, greatly increase the difficulty of illegally intercepting on the other hand;
The 3rd, this transmission method does not need to carry out in advance device pairing, does not need network support yet, and it is convenient that transmission both sides connect, and only needs two equipment near completing transfer of data.
The high frequency sound wave of the good concealment that specifically, described detection sound wave is transmitting procedure.Approach hyperacoustic high frequency sound wave and cannot see to can not touch also and be difficult for being heard to possess stronger disguise, can ensure the fail safe of transfer of data.
In the present embodiment, in step 2, the detection sound wave of broadcasting is five built-in class frequency sounds.Built-in five class frequency sounds in software, to determine transmission frequency.Certainly, this is only a specific embodiment of the present invention, and the quantity of frequency tone of the present invention is not limited in this, also can be other quantity.
The present invention also provides a kind of transfer of data method, system based on frequency conversion sound wave, comprising:
Transmitting terminal, its role is to, and first the data of required transmission is converted to 16 system numbers; Play and detect sound wave again, and carry out from recording, analyze recording result, find the highest one group of signal to noise ratio as transmission frequency; Then encode to preparing data by definite transmission frequency, produce data content wave file;
Finally by coding frequency and data content in accordance with regulations form play in the mode of acoustic signals;
Receiving terminal, its role is to, and first monitors acoustic signals, and parses frequency signal; By definite frequency, data content sound wave is decoded again, obtain preparing data; Finally preparation data are reduced to initial data, complete transfer of data.
Compared to prior art, data transmission system based on frequency conversion sound wave provided by the invention, according to the frequency of sound wave of environmental noise automatic adaptation the best, can strengthen signal to noise ratio according to environmental noise situation on the one hand, improve communication reliability, because the frequency of each transmission is not quite similar, greatly increase the difficulty of illegally intercepting on the other hand.
Specifically, transmitting terminal and receiving terminal are the intelligent terminal that carries microphone and loud speaker.Intelligent terminal herein refers to smart mobile phone, computer or panel computer.Utilize microphone and the loud speaker that intelligent terminal carries play and gather sound wave, do not need the support of other specialized hardwares, greatly reduce and use threshold and produce and promote cost compared with the method such as existing NFC, Quick Response Code.
Disclosed is above only several specific embodiment of the present invention, but the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (6)
1. the data transmission method based on frequency conversion sound wave, is characterized in that, comprises following step:
Step 1, is first converted to the data of required transmission 16 system numbers at transmitting terminal, represents with these 16 characters of 0 ~ F;
Step 2, plays and detects sound wave, and carries out from recording, analyzes recording result, finds the highest one group of signal to noise ratio as transmission frequency;
Step 3, encodes to preparing data by the transmission frequency that step 2 is definite, produces data content wave file;
Step 4, by coding frequency and data content in accordance with regulations form play in the mode of acoustic signals;
Step 5, monitors acoustic signals at receiving terminal, and parses frequency signal;
Step 6, decodes to data content sound wave by definite frequency, obtains preparing data;
Step 7, is reduced to initial data by preparation data, completes transfer of data.
2. the data transmission method based on frequency conversion sound wave according to claim 1, is characterized in that, in described step 2, the detection sound wave of broadcasting is five built-in class frequency sounds.
3. the data transmission method based on frequency conversion sound wave according to claim 1, is characterized in that, the high frequency sound wave of the good concealment that described detection sound wave is transmitting procedure.
4. the transfer of data method, system based on frequency conversion sound wave, is characterized in that, comprising:
Transmitting terminal, its role is to, and first the data of required transmission is converted to 16 system numbers; Play and detect sound wave again, and carry out from recording, analyze recording result, find the highest one group of signal to noise ratio as transmission frequency; Then encode to preparing data by definite transmission frequency, produce data content wave file;
Finally by coding frequency and data content in accordance with regulations form play in the mode of acoustic signals;
Receiving terminal, its role is to, and first monitors acoustic signals, and parses frequency signal; By definite frequency, data content sound wave is decoded again, obtain preparing data; Finally preparation data are reduced to initial data, complete transfer of data.
5. according to claim 4ly it is characterized in that in the transfer of data method, system of frequency conversion sound wave, described transmitting terminal and receiving terminal are the intelligent terminal that carries microphone and loud speaker.
6. according to claim 5ly it is characterized in that in the transfer of data method, system of frequency conversion sound wave, described intelligent terminal is smart mobile phone, computer or panel computer.
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| CN201410209606.6A CN103957220A (en) | 2014-05-19 | 2014-05-19 | Data transmission method and system based on frequency conversion sound waves |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337671A (en) * | 2014-08-15 | 2016-02-17 | 国民技术股份有限公司 | Communication method and system based on sound wave transmitting and receiving terminal |
| CN105680957A (en) * | 2016-04-18 | 2016-06-15 | 重庆喜玛拉雅科技有限公司 | Information push system based on pickup on intelligent device |
| CN105791973A (en) * | 2016-03-07 | 2016-07-20 | 大连乐云信息技术有限公司 | Resolving method and resolving device based on sound wave watermark |
| CN106856042A (en) * | 2015-12-08 | 2017-06-16 | 北京师范大学 | A kind of near field communication devices control method based on sound wave signals |
| CN109274435A (en) * | 2018-08-31 | 2019-01-25 | 海南新软软件有限公司 | A kind of method, apparatus and system using technology of acoustic wave transmission digital asset address |
| CN110535536A (en) * | 2019-09-02 | 2019-12-03 | 李志功 | A kind of wireless computer data transmission realizing method based on sound wave modulation /demodulation |
| CN110784294A (en) * | 2019-09-20 | 2020-02-11 | 浙江大华技术股份有限公司 | Background sound self-adaptive sound wave distribution network method, system, equipment and storage medium |
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| CN102325224A (en) * | 2011-09-16 | 2012-01-18 | 成都摩宝网络科技有限公司 | Audio data transmission system, audio data transmission method and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337671A (en) * | 2014-08-15 | 2016-02-17 | 国民技术股份有限公司 | Communication method and system based on sound wave transmitting and receiving terminal |
| CN106856042A (en) * | 2015-12-08 | 2017-06-16 | 北京师范大学 | A kind of near field communication devices control method based on sound wave signals |
| CN105791973A (en) * | 2016-03-07 | 2016-07-20 | 大连乐云信息技术有限公司 | Resolving method and resolving device based on sound wave watermark |
| CN105680957A (en) * | 2016-04-18 | 2016-06-15 | 重庆喜玛拉雅科技有限公司 | Information push system based on pickup on intelligent device |
| CN109274435A (en) * | 2018-08-31 | 2019-01-25 | 海南新软软件有限公司 | A kind of method, apparatus and system using technology of acoustic wave transmission digital asset address |
| CN110535536A (en) * | 2019-09-02 | 2019-12-03 | 李志功 | A kind of wireless computer data transmission realizing method based on sound wave modulation /demodulation |
| CN110784294A (en) * | 2019-09-20 | 2020-02-11 | 浙江大华技术股份有限公司 | Background sound self-adaptive sound wave distribution network method, system, equipment and storage medium |
| CN110784294B (en) * | 2019-09-20 | 2023-01-03 | 浙江大华技术股份有限公司 | Background sound self-adaptive sound wave distribution network method, system, equipment and storage medium |
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