CN103580844A - Mobile phone software and method for conducting full-duplex digital communication through peripheral based on standard Bluetooth headset jack - Google Patents
Mobile phone software and method for conducting full-duplex digital communication through peripheral based on standard Bluetooth headset jack Download PDFInfo
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- CN103580844A CN103580844A CN201210275340.6A CN201210275340A CN103580844A CN 103580844 A CN103580844 A CN 103580844A CN 201210275340 A CN201210275340 A CN 201210275340A CN 103580844 A CN103580844 A CN 103580844A
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Abstract
The invention discloses a working method and system for conducting full-duplex digital communication through a Bluetooth hardware peripheral. A smart mobile phone application program and a smart mobile phone are compatible in the Bluetooth hardware peripheral which achieves Bluetooth headset protocols. The method includes the steps that the smart mobile phone application program sends instructions to the peripheral by sending audio coding signals including control instructions to a Bluetooth headset, after the peripheral executes the instructions, the peripheral returns a processed intermediate result and a processed final result to the smart mobile phone, audio signals in coded modulation are demodulated and decoded by a mobile phone side application program, and then a returned result of equipment is acquired. According to the method, development of hardware equipment which is bound with the specific implementation scheme of the smart mobile phone can be avoided, compatibility in the maximum range can be achieved, the probable time-consuming links of delivery, authentication and authorization acquisition of hardware products are reduced, and the period for the products to appear on a market is shortened.
Description
Technical field:
The present invention relates to field of mobile communication, relate in particular to a kind of technical method that carries out full duplex digital communication with smart mobile phone application program and the hardware adaptor based on standard bluetooth headset profile interface.
Background technology:
Bluetooth technology brief introduction: Bluetooth technology is the ,IBMDeng of Ericsson 5 companies combined a release radio network technique in 1998, is intended to unified WLAN communication standard.The Bluetooth technology particular interest tissue (SIG) of setting up is subsequently responsible for the exploitation of this technology and the formulation of technical protocol, and nowadays this tissue is joined by the existing company more than 1800 in the whole world.
Bluetooth is the open-standards of wireless data and voice transfer, and it is by various communication equipments, computer and terminal equipment thereof, various digital data system, even household electrical appliance adopt wireless mode to link up.Its transmission range is 10cm～10m, if just increase power or add that some peripheral hardware can reach the transmission range of 100m.Adopt 2.4GHz ISM band and frequency modulation, frequency hopping, the right to use is to error correction coding, ARQ, TDD and baseband protocol.The every time slot of TDMA is 0.625 μ s, and it is 1Mb/s that base band meets speed.Bluetooth is supported 64kb/s Real-Time Voice Transmission and transfer of data, and speech coding is CVSD, and transmitting power is respectively 1mW, 2.5mW and 100mW, and uses the EIC equipment identification code of 48 unified bits of the whole world.Because bluetooth adopts wave point, replace wire cable to connect, there is very strong transplantability, and be applicable to multiple occasion, add that this technology is low in energy consumption, little to harm, and application simply, easily realize, so be easy to promote.
SIG is organized in and has released bluetooth specification 1.0 versions on July 26th, 1999.The system configuration of Bluetooth technology is divided into three parts: bottom hardware module, intermediate protocol layer and higher layer applications.Bottom hardware partly comprises wireless frequency hopping (RF), base band (BB) and link management (LM).Wireless frequency hopping layer is the microwave without the ISM band of authorizing by 2.4GHz, realizes filtration and the transmission of data bit stream, and this layer protocol has mainly defined bluetooth transceiver in the required satisfied condition of this frequency band normal operation.Base band is responsible for the transmission of frequency hopping and blue-teeth data and information frame.Link management is responsible for connecting, setting up and remove link and carry out security control.
Bluetooth technology combines the feature of circuit switching and packet switching, can carry out asynchronous data communication, can support nearly 3 synchronous voice channels of simultaneously carrying out, and can also use a channel to transmit asynchronous data and synchronous speech simultaneously.Each voice channel is supported the 64kb/ synchronous voice link of second.Asynchronous channel can support that one end maximum rate is that 721kb/ second, other end speed are the 57.6kb/ asymmetric connection of second, also can support the symmetry of 43.2kb/ second to connect.
Intermediate protocol layer comprises logic link control and adapts to agreement, service discovery protocol, serial ports simulation protocol and telephone communication agreement.Logic link control and adaptation agreement have had data dismounting, have controlled the function of service quality and multiplex protocol, and this layer protocol is the basis that other each layer protocol is realized.Service discovery protocol layer comes service available in discovering network and characteristic thereof for upper level applications provides a kind of mechanism.Telephone communication protocol layer provides the calling control command of speech and data between bluetooth equipment.
HCI layer (HCI) is the interface between software and hardware in Bluetooth protocol, and it provides a unity of command interface that calls the hardware such as base band, link management, state and control register.While communicating between bluetooth equipment, protocol software entity more than HCI moves on main frame, and function below HCI completes by bluetooth equipment, between the two, by one, the transparent transport layer in two ends is carried out alternately.
Topmost at bluetooth protocol repertory is various higher layer applications frameworks.Wherein more typically have Dial-up Network, earphone, local area network (LAN) access, file transfer etc., they are corresponding a kind of application model respectively.Various application programs can realize radio communication by each self-corresponding application model.User can realize the wireless transmission of audio stream by the Audio in protocol stack (audio frequency) layer in mobile phone and earplug; Between multiple pc or notebook computer, without any need for line, just can carry out fast, neatly file transfer and shared information, multiple devices also can be realized simultaneous operation thus.
In a word, whole Bluetooth protocol is simple in structure, with retransmission mechanism, guarantee the reliability of link, the multiple safe mechanism of practicable classification also in base band, link management and application layer, and can eliminate in network environment the interference from other wireless device by frequency hopping.
Bluetooth earphone agreement brief introduction: in recent years, along with day by day universal in electronic product of Bluetooth technology, Bluetooth audio equipment also emerges in an endless stream, wherein has the bluetooth earphone of hand-free function and the application of Bluetooth audio frequency gateway is most typical example.But hands-free unit and audio frequency net gate way carry out the SCO that audio transmission sets up to be connected, and only can support the audio stream of 64kbps carrier class voice quality, and this has also just limited the raising of Bluetooth audio frequency quality, has also affected the abstract the recreational consumption market of bluetooth simultaneously.In order to meet the demand of people to high quality audio, further expand blue tooth products market, the SIG of bluetooth special interest group tissue, advanced audio distribution framework (Advanced Audio Distribution Profile, A2DP) has been proposed separately again on the application framework basis of bluetooth 1.1 standards.This framework has utilized asynchronous monophony or the stereo audio data of carrying out high quality without connecting link of the ACL setting up at L2CAP layer, and the transmission rate of pay(useful) load can reach 300kbps-400kbps.
The hardware adaptor of mentioning in the present invention, feature comprises:
1, its to have main purpose be not for appreciable audio frequency output (although concrete realization may provide audio output function really) is provided for user, but be the peripheral hardware that a certain specific purpose needs and smart mobile phone application program is carried out full duplex digital communication, include but not limited to: network information security equipment, smart card reader, magnetic card reader, hardware enciphering and deciphering module, hardware identification module, printer, facsimile machine, scanner, External memory equipment etc.
2, in its part, comprise the bluetooth earphone protocol module of realizing standard bluetooth headset profile.
3, the digital signal of both-way communication is to carry out transmitted in both directions by audio coding modulation signal form, need to, by other communication channel, not need to revise smart mobile phone standard bluetooth headset profile and realize details.
And in prior art, need the outer great majority of hardware that carry out full duplex digital communication with smart mobile phone application program all based on proprietary protocol, directly to carry out being connected of physical layer, based on standard bluetooth headset profile, do not carry out full duplex digital communication functions
Summary of the invention:
In order to make hardware adaptor obtain applicability widely, the invention provides the technical method that a kind of smart mobile phone application program and the hardware adaptor based on standard bluetooth headset profile interface are carried out full-duplex data communication, technical scheme is as follows:
Smart mobile phone application program is by standard bluetooth headset profile to the hardware adaptor transmit operation instruction based on standard bluetooth headset profile interface, and operational order sends the hardware adaptor based on standard bluetooth headset profile interface to the form of audio coding modulation signal;
The described hardware adaptor based on standard bluetooth headset profile interface is carried out communication by standard bluetooth headset profile, be specially: when described smart mobile phone application program writes instruction, by control command and data encoding, be modulated to the audio coding modulation signal that has comprised control command and data, modulation system includes but not limited to ASK, PSK, FSK, QAM etc., by bluetooth earphone agreement, send to the described hardware adaptor based on standard bluetooth headset profile interface, the described hardware adaptor based on standard bluetooth headset profile interface by comprising of receiving the audio coding modulation signal of control command and data carry out demodulation code, after demodulating and decoding, obtain control command and data wherein, according to control command and data, operate accordingly.
After the described hardware adaptor based on standard bluetooth headset profile interface has operated, by operating result state and the same coded modulation of data message, it is audio coding modulation signal, send to smart mobile phone application program, smart mobile phone application program, according to the audio coding modulation signal reading in, obtains operating result state and data message wherein after demodulating and decoding.So far complete once complete full duplex digital communication.
The work system that application program and the hardware adaptor based on standard bluetooth headset profile interface are carried out full duplex digital communication, described system comprises: smart mobile phone application program and the hardware adaptor based on standard bluetooth headset profile interface;
The described hardware adaptor based on standard bluetooth headset profile interface comprises: bluetooth earphone protocol module and hardware adaptor control module;
Described hardware adaptor control module comprises: audio coding signal encoding and decoding modulation software module, service logic control module;
Described smart mobile phone application program comprises: user interactions and business logic software module, the encoding and decoding of audio coding modulation signal and modulation /demodulation software module;
Described bluetooth earphone protocol module is used for realizing bluetooth earphone wave point, sets up digital communication passage between hardware adaptor and smart mobile phone;
Described hardware adaptor control module, for controlling subordinate's service logic control module, audio coding signal encoding and decoding software module, the co-ordination of blue tooth wireless communication module, completes specific task or service logic;
Described audio coding signal encoding and decoding modulation /demodulation software module is for being modulated to audio signal by the digital signal encoding that represents control command and data, also, for contrary demodulating and decoding process, both audio coding modulation signal had been reduced to the digital signal that represents control command and data;
Described service logic control module has been used for the specific service logic of hardware adaptor;
Described user interactions and business logic software module have been used for the service logic of smart mobile phone end and have carried out alternately (user interactions part is not necessary) with user.
Beneficial effect:
The technical method that a kind of smart mobile phone application program provided by the invention and the hardware adaptor based on standard bluetooth headset profile interface are carried out full duplex digital communication, by standard bluetooth headset profile, realize smart mobile phone application program and hardware adaptor has realized full duplex digital communication, improved the applicability of hardware adaptor.
Accompanying drawing explanation:
Fig. 1: the method for work flow chart that to be a kind of smart mobile phone application program of providing in the embodiment of the present invention carry out full duplex digital communication with the hardware adaptor based on standard bluetooth headset profile interface.
Embodiment:
The technical method that a kind of smart mobile phone application program of the present invention and the hardware adaptor based on standard bluetooth headset profile interface are carried out full duplex digital communication, the described hardware adaptor based on standard bluetooth headset profile interface, be a kind of standard bluetooth headset profile interface equipment through transformation, wherein increased the encoding and decoding of audio coding modulation signal and modulation /demodulation software module and service logic control module.
In order to be illustrated more clearly in technical scheme of the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention; those of ordinary skills, not making the every other embodiment (such as simply full duplex digital communication being reduced to single work or half-duplex digital communication) obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
The technical method that the embodiment of the present invention 1 provides a kind of smart mobile phone application program and the hardware adaptor based on standard bluetooth headset profile interface to carry out full-duplex data communication, referring to Fig. 1, wherein, hardware adaptor based on standard bluetooth headset profile interface is the equipment that has increased as required bluetooth earphone protocol module in hardware adaptor, and specific works method comprises:
Step 0, smart mobile phone application initialization, open the audio frequency apparatus on smart mobile phone, guarantees that smart mobile phone is by bluetooth earphone agreement and device pairing successful connection, and open the audio coding modulation signal that audio input device waits for that receiving equipment is replied
Step 1, smart mobile phone application program send to the encoding and decoding of audio coding modulation signal and modulation /demodulation software module by control command and data
Step 2, the encoding and decoding of audio coding modulation signal and modulation /demodulation software module are modulated to audio coding modulation signal by control command and data encoding, are handed down to the built-in blue tooth wireless communication module of smart mobile phone
Step 3, audio signal are wirelessly transmitted in the built-in blue tooth wireless communication module of hardware adaptor through standard bluetooth headset profile
Step 4, the built-in blue tooth wireless communication module audio reception modulation signals of hardware adaptor, upwards send to the encoding and decoding of audio coding modulation signal and the decoding of modulation /demodulation software module
Step 5, the encoding and decoding of audio coding modulation signal and modulation /demodulation software module solution are read control command and data, transfer to service logic control module to carry out.
Command execution results is sent into the encoding and decoding of audio coding modulation signal for step 6, service logic control module and modulation /demodulation software module coded modulation is audio coding modulation signal
Step 7, audio coding signal are sent into bluetooth earphone protocol module
Step 8, audio coding signal, via standard bluetooth headset profile, send it back the built-in blue tooth wireless communication module of smart mobile phone
Step 9, the built-in blue tooth wireless communication module of smart mobile phone upwards send to audio coding modulation signal the encoding and decoding of audio coding modulation signal and the modulation /demodulation software module of smart mobile phone application program
Particularly, in the present embodiment, smart mobile phone application program and the hardware adaptor based on standard bluetooth headset profile interface have preset encoding and decoding and the modulation and demodulation algorithm of audio coding signal, can go out control command and data by demodulating and decoding from the audio coding modulation signal that has comprised control command and data by these encoding and decoding and modulation and demodulation algorithm.Below concrete communication example, further set forth.
For example: in the present embodiment, concrete operations instruction is as follows:
Smart mobile phone application program, initiates read request by the blue tooth wireless communication module that smart mobile phone is built-in to hardware adaptor, read request code is 0x01, this request code is audio coding modulation signal by the encoding and decoding of audio coding modulation signal and modulation /demodulation software module coded modulation, hardware adaptor control module in hardware adaptor receives after audio coding modulation signal, audio coding modulation signal is sent to hardware adaptor control module, hardware adaptor control module is first sent into audio coding modulation signal the encoding and decoding of audio coding modulation signal and the decoding of modulation /demodulation software module, obtain read request code 0x01, again this control routine is sent to service logic control module, service logic control module is carried out this order, the data response that smart mobile phone application program is needed is audio coding modulation signal through audio coding modulation signal encoding and decoding and modulation /demodulation software module by response data coded modulation, audio coding modulation signal sends to the bluetooth earphone protocol module on smart mobile phone through bluetooth earphone protocol module, and finally by smart mobile phone application program, received, audio coding modulation signal encoding and decoding in smart mobile phone application program and modulation /demodulation software module therefrom demodulating and decoding go out response data, transfer to the follow-up flow processing of smart mobile phone application program, complete once complete full duplex digital communication.
In practical application, smart mobile phone application program, to the two-way data communication between the hardware adaptor based on standard bluetooth headset profile interface, can be arbitrarily to the significant digital coding modulated signal sequences of data transmitting-receiving two-end, namely communications protocol.No matter its specific implementation adopts which type of synchronous coding, error correction coding, high-rise communications protocol etc. and adopts which type of modulator approach; as long as it carries out full duplex digital communication based on standard bluetooth headset profile interface by the audio coding modulation signal that has comprised control command and data, all within protection scope of the present invention.
The hardware adaptor of carrying out full duplex digital communication based on standard bluetooth headset profile interface that the embodiment of the present invention provides, by standard bluetooth headset profile, carry out full duplex digital communication, make hardware adaptor energy and current most smart mobile phone compatible, improved the applicability of hardware adaptor.
These are only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the method for work that smart mobile phone application program and the hardware adaptor based on standard bluetooth headset profile interface are carried out full-duplex data communication, is characterized in that, described method comprises:
Smart mobile phone application program sends the audio coding modulation signal that has comprised control command and data by the hardware adaptor to based on standard bluetooth headset profile interface, peripheral hardware demodulating and decoding from audio coding modulation signal goes out instruction, after being finished according to instruction, to smart mobile phone application program, return and process intermediate object program and final result, the method adopting be the audio coding modulation signal that has comprised control command and data be information intermediate carrier, smart mobile phone application program, by demodulating and decoding audio coding modulation signal, obtains returning results of hardware adaptor.
2. the method for work that a kind of smart mobile phone application program according to claim 1 and the hardware adaptor based on standard bluetooth headset profile interface are carried out full duplex digital communication, it is characterized in that, described smart mobile phone is the smart mobile phone of compatibility standard bluetooth earphone agreement.
3. the method for work that a kind of smart mobile phone application program according to claim 1 and the hardware adaptor based on standard bluetooth headset profile interface are carried out full duplex digital communication, it is characterized in that, control command between application-specific and specific peripheral hardware is predicted, and coded system, modulation system are all (modulation system include but not limited to ASK, PSK, FSK, QAM etc.) of precognition.
4. the method for work that a kind of smart mobile phone application program according to claim 1 and the hardware adaptor based on standard bluetooth headset profile interface are carried out full duplex digital communication, is characterized in that, the transfer approach of descending control command, is specially:
Descending control command is transmitted by audio coding modulation signal.Coding comprises instruction encoding and error correction coding thereof.
5. the method for work that a kind of smart mobile phone application program according to claim 1 and the hardware adaptor based on standard bluetooth headset profile interface are carried out full duplex digital communication, is characterized in that, the transfer approach that upstream data adopts, is specially:
By audio coding modulation signal is fed back to after smart mobile phone application program, smart mobile phone application program processing audio modulation signals, demodulating and decoding goes out data and control command, and processes accordingly.
6. the system of carrying out work according to the method described in claim 1-5 any one.
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| CN201210275340.6A CN103580844A (en) | 2012-08-06 | 2012-08-06 | Mobile phone software and method for conducting full-duplex digital communication through peripheral based on standard Bluetooth headset jack |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104113820A (en) * | 2014-08-08 | 2014-10-22 | 无锡硅动力微电子股份有限公司 | Method for data communication between IOS and Bluetooth module |
| CN104639545A (en) * | 2015-01-30 | 2015-05-20 | 深圳思考软件有限公司 | Method and equipment for simultaneous transmitting of audio signal and control signal through Bluetooth audio module |
| CN106101979A (en) * | 2015-04-30 | 2016-11-09 | 三星电子株式会社 | Method and the electronic equipment of use the method for short-distance wireless communication |
| CN106464699A (en) * | 2015-04-09 | 2017-02-22 | Nec平台株式会社 | Wireless communication device, near-field wireless communication device, wireless communication method, and near-field wireless communication method |
| CN114040370A (en) * | 2021-11-01 | 2022-02-11 | 国芯科技(广州)有限公司 | Debugging system of multiple Bluetooth devices |
-
2012
- 2012-08-06 CN CN201210275340.6A patent/CN103580844A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113820A (en) * | 2014-08-08 | 2014-10-22 | 无锡硅动力微电子股份有限公司 | Method for data communication between IOS and Bluetooth module |
| CN104639545A (en) * | 2015-01-30 | 2015-05-20 | 深圳思考软件有限公司 | Method and equipment for simultaneous transmitting of audio signal and control signal through Bluetooth audio module |
| CN106464699A (en) * | 2015-04-09 | 2017-02-22 | Nec平台株式会社 | Wireless communication device, near-field wireless communication device, wireless communication method, and near-field wireless communication method |
| CN106464699B (en) * | 2015-04-09 | 2018-06-19 | Nec平台株式会社 | Wireless telecom equipment, near field communication equipment, wireless communications method and near field communication method |
| US10015652B2 (en) | 2015-04-09 | 2018-07-03 | Nec Platforms, Ltd. | Near-field wireless communication equipment, and near-field wireless communication method |
| CN106101979A (en) * | 2015-04-30 | 2016-11-09 | 三星电子株式会社 | Method and the electronic equipment of use the method for short-distance wireless communication |
| CN106101979B (en) * | 2015-04-30 | 2020-12-18 | 三星电子株式会社 | Method for short-range wireless communication and electronic device using the same |
| CN114040370A (en) * | 2021-11-01 | 2022-02-11 | 国芯科技(广州)有限公司 | Debugging system of multiple Bluetooth devices |
| CN114040370B (en) * | 2021-11-01 | 2023-10-20 | 国芯科技(广州)有限公司 | Debugging system of many bluetooth equipment |
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