CN108322901A - Short distance wireless information interaction method and device based on DTMF - Google Patents
Short distance wireless information interaction method and device based on DTMF Download PDFInfo
- Publication number
- CN108322901A CN108322901A CN201810055483.3A CN201810055483A CN108322901A CN 108322901 A CN108322901 A CN 108322901A CN 201810055483 A CN201810055483 A CN 201810055483A CN 108322901 A CN108322901 A CN 108322901A
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- Prior art keywords
- information
- dtmf
- short distance
- frequency signal
- tone frequency
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
- H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
- H04M7/1295—Details of dual tone multiple frequency signalling
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Abstract
Information to be sent is converted to Unicode codes by transmitting terminal, then carries out dtmf code to Unicode codes and obtain dtmf tone frequency signal by the short distance wireless information interaction method and device based on DTMF that the invention discloses a kind of；Then receiving terminal carries out DTMF decodings to the dtmf tone frequency signal received, obtains corresponding Unicode codes, then the Unicode codes are converted to corresponding information；The wireless information interaction of short distance can not only be made more convenient, and the expression range of information content can be allowed wider.
Description
Technical field
The present invention relates to data interaction technology field, especially a kind of short distance wireless information interaction method based on DTMF
And its device of application this method.
Background technology
In short distance, when you want sending bulk message in face of group or setting one group or individually one by one
Hair, step is cumbersome, but also to ensure have a kind of unified wireless tool that can just carry out business card interaction simultaneously, such as unified blue
Tooth, WiFi etc..The use that this greatly limits wireless information interactions in short range.
DTMF (Double Tone MulitiFrequency, dual-tone multifrequency), is made of high frequency group and low frequency group, height
Frequency group includes respectively 4 frequencies.One combination signal of one high-frequency signal and a low frequency signal superposition composition, represents a number
Word.Dtmf signaling has 16 codings.As a kind of technology for realizing the fast and reliable transmission of telephone number, it has very strong DTMF
Anti-interference ability and higher transmission speed, are widely used in telephone communication unit.The prior art is typically that DTMF is used as electricity
The voice-frequency dialing of words, or for realizing the remote transmission of the information such as various data flows and voice, but also not by DTMF for close
The wireless information interaction of distance.
Invention content
The present invention is to solve the above problems, provide a kind of short distance wireless information interaction method and dress based on DTMF
Set, the wireless information interaction of short distance can not only be made more convenient, and can allow information content expression range more
Extensively.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of short distance wireless information interaction method based on DTMF comprising following steps：
Information to be sent is converted to Unicode codes by transmitting terminal, then is carried out dtmf code to Unicode codes and obtained DTMF
Audio signal；
Receiving terminal carries out DTMF decodings to the dtmf tone frequency signal received, obtains corresponding Unicode codes, then will be described
Unicode codes are converted to corresponding information.
Preferably, further include encrypting step：The transmitting terminal is first encrypted to sent information, is encrypted
Information, then encryption information is converted into Unicode codes；The receiving terminal carries out DTMF and decodes after obtaining corresponding Unicode codes,
The Unicode codes are first converted into the encryption information, then the encryption information is decrypted, obtain corresponding letter
Breath.
Preferably, further include signal detection step：The receiving terminal is before carrying out DTMF decodings, the first sound to receiving
Frequency signal carries out the detection of frequency range, when being judged as meeting the frequency range of dtmf tone frequency signal, just further to described
Dtmf tone frequency signal carries out DTMF decodings.
Preferably, the information is card information；The card information include it is following more than one：Name information, connection
It is phone information, organization information, post information, mailbox message.
Corresponding, the present invention also provides a kind of short distance information based on DTMF corresponding with exchange method above-mentioned
Wireless interaction device comprising：
Information editing's module, for editing information to be sent；
Unicode conversion modules for information to be sent to be converted to Unicode codes, or will receive
Unicode codes switch to for corresponding information；
Dtmf code decoder module obtains dtmf tone frequency signal, or docking for carrying out dtmf code to Unicode codes
The dtmf tone frequency signal received carries out DTMF and decodes to obtain corresponding Unicode codes；
Sound sending module, for sending the dtmf tone frequency signal after encoding；
Sound receiving module, for receiving the dtmf tone frequency signal.
Preferably, further include information encrypting and decrypting module, encrypted for being encrypted to sent information
Information, or the encryption information received is decrypted to obtain corresponding information.
Preferably, further include signal detection module, the detection for carrying out frequency range to the audio signal received, when
When being judged as meeting the frequency range of dtmf tone frequency signal, the dtmf tone frequency signal is further just sent to dtmf code solution
Code module carries out DTMF decodings.
Preferably, the information is card information；The card information include it is following more than one：Name information, connection
It is phone information, organization information, post information, mailbox message.
The beneficial effects of the invention are as follows：
A kind of short distance wireless information interaction method and device based on DTMF of the present invention, will be pending by transmitting terminal
The information sent is converted to Unicode codes, then carries out dtmf code to Unicode codes and obtain dtmf tone frequency signal；Then receiving terminal
DTMF decodings are carried out to the dtmf tone frequency signal received, obtain corresponding Unicode codes, then the Unicode codes are converted
For corresponding information；The wireless information interaction of short distance can not only be made more convenient, and can allow information content
It is wider to express range.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of general flow chart of the short distance wireless information interaction method based on DTMF of the present invention；
Fig. 2 is a kind of structural schematic diagram of the short distance wireless information interaction device based on DTMF of the present invention.
Specific implementation mode
In order to keep technical problems, technical solutions and advantages to be solved clearer, clear, tie below
Closing accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1, a kind of short distance wireless information interaction method based on DTMF of the present invention comprising following step
Suddenly：
Information to be sent is converted to Unicode codes by transmitting terminal, then is carried out dtmf code to Unicode codes and obtained DTMF
Audio signal；
Receiving terminal carries out DTMF decodings to the dtmf tone frequency signal received, obtains corresponding Unicode codes, then will be described
Unicode codes are converted to corresponding information.
Carry out dtmf code again after information to be sent is first converted to Unicode codes in the present embodiment, be because
4 hexadecimal representations of Unicode codes, and DTMF can indicate 16 characters by its coding rule, just and
The hexadecimal of Unicode codes corresponds to.Unicode codes contain language characters all in the world substantially.So using intermediate
Insertion is converted into Unicode codes, can allow 16 characters for most effectively using DTMF, and can allow the expression model of information content
It encloses wider.
Further include encrypting step in the present embodiment in addition, in order to improve the safety of information transmission：The transmitting terminal is first right
Information to be sent is encrypted, and obtains encryption information, then encryption information is converted to Unicode codes；The receiving terminal
It carries out DTMF to decode after obtaining corresponding Unicode codes, the Unicode codes is first converted into the encryption information, then to institute
It states encryption information to be decrypted, obtains corresponding information.
Since receiving terminal is easy to be interfered by external sound, such as user speech or environmental noise etc., in order to avoid
Decoding calculating quantity is interfered and reduced, further includes signal detection step in the present embodiment：The receiving terminal is carrying out DTMF decodings
Before, the detection that frequency range is first carried out to the audio signal that receives, when being judged as meeting the frequency model of dtmf tone frequency signal
When enclosing, DTMF decodings further just are carried out to the dtmf tone frequency signal.
In the present embodiment, the transmitting terminal and the receiving terminal can be the mobile terminals such as mobile phone, tablet computer.Described
Information is card information；The card information include it is following more than one：Name information, telephone number information, organization letter
Breath, post information, mailbox message.For example, information format can be " name of contact person+cell-phone number+gender+... ", specific name
The piece information content can be configured and adjust according to actual demand, be not limited.
As shown in Fig. 2, the present invention also provides a kind of short distance wireless information interaction device based on DTMF comprising：
Information editing's module, for editing information to be sent；
Unicode conversion modules for information to be sent to be converted to Unicode codes, or will receive
Unicode codes switch to for corresponding information；
Dtmf code decoder module obtains dtmf tone frequency signal, or docking for carrying out dtmf code to Unicode codes
The dtmf tone frequency signal received carries out DTMF and decodes to obtain corresponding Unicode codes；
Sound sending module, for sending the dtmf tone frequency signal after encoding；
Sound receiving module, for receiving the dtmf tone frequency signal.
Information encrypting and decrypting module obtains encryption information, or docking for being encrypted to sent information
The encryption information received is decrypted to obtain corresponding information.
Signal detection module, the detection for carrying out frequency range to the audio signal that receives, when being judged as meeting
When the frequency range of dtmf tone frequency signal, the dtmf tone frequency signal is further just sent to dtmf code decoder module and is carried out
DTMF is decoded.
Wherein, loud speaker, piezo etc. can be used in the sound sending module, and Mike can be used in the sound receiving module
Wind, piezo etc.；The dtmf code decoder module can be used DTMF hardware circuits and carry out dtmf code and decoding, can also be used
The method of software come realize Software Coding and software decoding；The information is card information；The card information includes following
More than one：Name information, telephone number information, organization information, post information, mailbox message.
The short distance wireless information interaction device (can be transmitting terminal can also be receiving terminal) of the present embodiment used
Journey is summarized as follows：
First, information editing's module of transmitting terminal recalls the card information for needing interaction, and information is handled, and passes through
Unicode conversion modules are converted into Unicode codes；Then DTMF is carried out to this Unicode code using dtmf code decoder module
Coding, and it is converted to corresponding dtmf tone frequency signal, it is sent out by sound sending module such as loud speaker.
Then, receiving terminal connects such as microphone by sound receiving module, after receiving this dtmf tone frequency signal, passes through
Dtmf code decoder module carries out DTMF decodings to it, is corresponding Unicode codes by the dtmf tone frequency signals revivification, then lead to
It crosses Unicode conversion modules to handle Unicode codes, be converted into corresponding information and shown by information display module
Show the information；So far the wireless information interaction of primary short distance is completed.
The wireless information interaction of the present invention is applicable not only to one-to-one information exchange, is also applied for one-to-many information and hands over
Mutually, especially apply to 1 mobile terminal card information while being sent to other multiple mobile terminals, it is convenient and efficient.
It should be noted that each embodiment in this specification is described in a progressive manner, each embodiment weight
Point explanation is all difference from other examples, and the same or similar parts between the embodiments can be referred to each other.
Also, herein, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.In addition, those of ordinary skill in the art can manage
Solution realizes that all or part of step of above-described embodiment can be completed by hardware, can also be instructed by program relevant
Hardware is completed, and the program can be stored in a kind of computer readable storage medium, and storage medium mentioned above can be with
It is read-only memory, disk or CD etc..
The preferred embodiment of the present invention has shown and described in above description, it should be understood that the present invention is not limited to this paper institutes
The form of disclosure is not to be taken as excluding other embodiments, and can be used for other combinations, modifications, and environments, and energy
Enough in this paper invented the scope of the idea, modifications can be made through the above teachings or related fields of technology or knowledge.And people from this field
The modifications and changes that member is carried out do not depart from the spirit and scope of the present invention, then all should be in the protection of appended claims of the present invention
In range.
Claims (8)
1. a kind of short distance wireless information interaction method based on DTMF, which is characterized in that include the following steps：
Information to be sent is converted to Unicode codes by transmitting terminal, then is carried out dtmf code to Unicode codes and obtained dtmf tone frequency
Signal；
Receiving terminal carries out DTMF decodings to the dtmf tone frequency signal received, obtains corresponding Unicode codes, then will be described
Unicode codes are converted to corresponding information.
2. a kind of short distance wireless information interaction method based on DTMF according to claim 1, which is characterized in that also wrap
Include encrypting step：The transmitting terminal is first encrypted to sent information, obtains encryption information, then encryption information is turned
It is changed to Unicode codes；The receiving terminal carries out DTMF and decodes after obtaining corresponding Unicode codes, first turns the Unicode codes
It is changed to the encryption information, then the encryption information is decrypted, obtains corresponding information.
3. a kind of short distance wireless information interaction method based on DTMF according to claim 1, which is characterized in that also wrap
Include signal detection step：The receiving terminal first carries out frequency range before carrying out DTMF decodings to the audio signal received
Detection, when being judged as meeting the frequency range of dtmf tone frequency signal, just further to the dtmf tone frequency signal carry out
DTMF is decoded.
4. a kind of short distance wireless information interaction method based on DTMF according to claim 1 or 2 or 3, feature exist
In the information is card information；The card information include it is following more than one：Name information, telephone number information, list
Position name information, post information, mailbox message.
5. a kind of short distance wireless information interaction device based on DTMF, which is characterized in that including：
Information editing's module, for editing information to be sent；
Unicode conversion modules, for information to be sent to be converted to Unicode codes, or the Unicode codes that will be received
Switch to for corresponding information；
Dtmf code decoder module obtains dtmf tone frequency signal for carrying out dtmf code to Unicode codes, or to receiving
Dtmf tone frequency signal carry out DTMF decode to obtain corresponding Unicode codes；
Sound sending module, for sending the dtmf tone frequency signal after encoding；
Sound receiving module, for receiving the dtmf tone frequency signal.
6. a kind of short distance wireless information interaction device based on DTMF according to claim 5, which is characterized in that also wrap
Information encrypting and decrypting module is included, for being encrypted to obtain encryption information to sent information, or to receiving
Encryption information is decrypted to obtain corresponding information.
7. a kind of short distance wireless information interaction device based on DTMF according to claim 5, which is characterized in that also wrap
Signal detection module is included, the detection for carrying out frequency range to the audio signal that receives, when being judged as meeting dtmf tone frequency
When the frequency range of signal, the dtmf tone frequency signal is further just sent to dtmf code decoder module and carries out DTMF solutions
Code.
8. a kind of short distance wireless information interaction device based on DTMF according to claim 5 or 6 or 7, feature exist
In the information is card information；The card information include it is following more than one：Name information, telephone number information, list
Position name information, post information, mailbox message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810055483.3A CN108322901A (en) | 2018-01-19 | 2018-01-19 | Short distance wireless information interaction method and device based on DTMF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810055483.3A CN108322901A (en) | 2018-01-19 | 2018-01-19 | Short distance wireless information interaction method and device based on DTMF |
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| CN108322901A true CN108322901A (en) | 2018-07-24 |
Family
ID=62887792
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| CN201810055483.3A Pending CN108322901A (en) | 2018-01-19 | 2018-01-19 | Short distance wireless information interaction method and device based on DTMF |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1217859A1 (en) * | 2000-12-20 | 2002-06-26 | Nokia Corporation | Method and apparatus for using DTMF for controlling context calls, and mutual context information exchange during mobile communication |
| US6771751B1 (en) * | 2000-10-17 | 2004-08-03 | Comdial Corporation | Systems and methods for information exchange and synchronization using DTMF over telephone communication channels |
| CN103108092A (en) * | 2011-11-15 | 2013-05-15 | 希姆通信息技术（上海）有限公司 | Communication terminal and information transmitting method between communication terminals |
| CN103354461A (en) * | 2013-08-12 | 2013-10-16 | 朱成敏 | Sound-based near field communication system and method thereof |
| CN203896411U (en) * | 2014-05-22 | 2014-10-22 | 爱维特信息技术有限公司 | Mobile phone business card exchange system |
| KR20140136642A (en) * | 2013-05-21 | 2014-12-01 | 변상용 | Method for Controlling near field wireless communication using cellular phone having function of output of DTMF signal |
| CN104796202A (en) * | 2015-04-20 | 2015-07-22 | 中国工商银行股份有限公司 | Near-field data transmission device and system and operating method thereof |
| CN104980904A (en) * | 2014-04-11 | 2015-10-14 | 华为技术有限公司 | Address list information transmission method, device and system |
| CN106059682A (en) * | 2016-08-05 | 2016-10-26 | 黄珲 | Mobile internet near-field identification system |
-
2018
- 2018-01-19 CN CN201810055483.3A patent/CN108322901A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6771751B1 (en) * | 2000-10-17 | 2004-08-03 | Comdial Corporation | Systems and methods for information exchange and synchronization using DTMF over telephone communication channels |
| EP1217859A1 (en) * | 2000-12-20 | 2002-06-26 | Nokia Corporation | Method and apparatus for using DTMF for controlling context calls, and mutual context information exchange during mobile communication |
| CN103108092A (en) * | 2011-11-15 | 2013-05-15 | 希姆通信息技术（上海）有限公司 | Communication terminal and information transmitting method between communication terminals |
| KR20140136642A (en) * | 2013-05-21 | 2014-12-01 | 변상용 | Method for Controlling near field wireless communication using cellular phone having function of output of DTMF signal |
| CN103354461A (en) * | 2013-08-12 | 2013-10-16 | 朱成敏 | Sound-based near field communication system and method thereof |
| CN104980904A (en) * | 2014-04-11 | 2015-10-14 | 华为技术有限公司 | Address list information transmission method, device and system |
| CN203896411U (en) * | 2014-05-22 | 2014-10-22 | 爱维特信息技术有限公司 | Mobile phone business card exchange system |
| CN104796202A (en) * | 2015-04-20 | 2015-07-22 | 中国工商银行股份有限公司 | Near-field data transmission device and system and operating method thereof |
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Application publication date: 20180724 |
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