CN101184027B - Mobile communication cluster network based data transmission method and system thereof - Google Patents
Mobile communication cluster network based data transmission method and system thereof Download PDFInfo
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- CN101184027B CN101184027B CN2007101254927A CN200710125492A CN101184027B CN 101184027 B CN101184027 B CN 101184027B CN 2007101254927 A CN2007101254927 A CN 2007101254927A CN 200710125492 A CN200710125492 A CN 200710125492A CN 101184027 B CN101184027 B CN 101184027B
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Abstract
The invention relates to a system of data transmission method based on the cluster network of the mobile communication, comprising the storage data or the SDRAM, SD cards of files used to control the data transmission or the modulate of the files and control the MPU of the inspection and demodulation of the received data or files, and the MPU is electrically connected with the GSM module by the level transformation module. The invention has the advantages of effectively reducing the cost of the data transmission, and being suitable for the transmission of data of large data size.
Description
Technical field
The present invention relates to field of data transmission, particularly a kind of data transmission method and system thereof based on mobile communication cluster.
Background technology
Raising along with the level of informatization of various device, in the consumer goods and industrial products that particularly various products with GSM or cdma communication module more and more occur, except that voice transfer, more products can be tended to transfer of data, as image, MP3, MP4.
Though CDMA 20000lx, GPRS etc. can be used for transfer of data based on the data transmission technology of CDMA and GSM, when the needs mass data was transmitted, the data traffic expense of great number made the user will bear high expense.In addition, the similar module that also more do not possess above function of the expense with module of CDMA 2000lx, GPRS function is wanted high 30%～50% cost.When two terminals of needs, or the server on terminal and the Internet will guarantee that at first two station terminals all land network simultaneously when communicating, could guarantee transfer of data effectively.The speech business of cornet cluster class is the cheap speech business that mobile operator releases to group user.In same cornet cluster, the user only need pay very little professional monthly rent, just can carry out the point-to-point voice transfer of length in unlimited time in the cornet cluster wide, but existing transfer of data cost based on mobile communication cluster is than higher.
Summary of the invention
The present invention overcomes the shortcoming of prior art, and a kind of data transmission method and system thereof based on mobile communication cluster is provided, and the present invention can effectively reduce the cost of transfer of data.
In order to solve the technical problem of above-mentioned existence, the present invention is achieved through the following technical solutions: a kind of data transmission method based on mobile communication cluster network may further comprise the steps:
In s1, when transmission,, MPU sends by self UART interface that the AT instruction starts and the control communications module, utilizes cornet in the group that the cluster short number service provides to send the request of voice call to target terminal or server, sets up voice and connects;
After s2, communication two ends connect, transmitting terminal reads data or file in SDRAM or the SD card by MPU, transmitting terminal is modulated into audio data stream with data or file, and according to the combination of packet header, text, verification and bag tail, segmentation is with the file or data division packing the carrying out asynchronous transmission that read;
S3, receiving terminal at first carry out demodulation to audio data stream, each packet to demodulation carries out verification again, compare with check information, if check is correct, then that verification is correct packet reconfigures and becomes binary file and store, and return a successful message, after transmitting terminal confirms that transfer of data is finished, stop to send; If check incorrectly, require transmitting terminal to resend this packet;
S4, cut-out voice connection after transfer of data is finished.
In method of the present invention, the file or the data that are stored in SDRAM or SD card among the described step s1 all adopt binary zero, 1 signal to store; Described communications module is GSM module, CDMA module, WCDMA module or bluetooth module.
In method of the present invention, the modulation step that is modulated into audio data stream of described step s2 is: Binary Zero adopts high pitch to transmit, and adopts bass to transmit to signal 1, and high pitch and bass are formed the audio data stream that will transmit.
In method of the present invention, described step s3 sound intermediate frequency data flow is carried out demodulation step and is: will receive high pitch and be demodulated into Binary Zero, the bass that receives is demodulated into binary one.
The present invention also provides a kind of data transmission system based on mobile communication cluster network, comprises SDRAM, the SD card of storing data or file, is used to control the modulation that sends data or file, and control receives the MPU that separates the mediation check of data or file.
In system provided by the present invention, also comprise level switch module, GSM module, bluetooth module; Described MPU is electrically connected with communications module by level switch module, or is electrically connected with the bluetooth module, with the access to wireless communication network.
In system provided by the present invention, described communications module comprises GSM module, CDMA module or WCDMA module.
In system provided by the present invention, also comprise digital baseband block, RF modulation module, Analog Baseband module, MIC/ loudspeaker, camera, keyboard, power module and LCD; Described MIC/ loudspeaker, camera, keyboard and LCD are electrically connected with MPU; Described MPU is electrically connected with antenna by level switch module, digital baseband block, Analog Baseband module, RF modulation module successively.
The present invention compared with prior art has following advantage and beneficial effect: the present invention is by transmitting programming to the enterprising line data of voice channel, and transmission data cost is low, and suitable big data quantity transfer of data.
Description of drawings
Fig. 1 is the structured flowchart of a kind of data transmission system based on mobile communication cluster network of the present invention;
Fig. 2 is the schematic flow sheet of a kind of data transmission method based on mobile communication cluster network of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, a kind of data transmission system based on mobile communication cluster network, the SDRAM, the SD card that comprise storage data or file, be used to control the modulation that sends data or file, and control receives the MPU that separates the mediation check of data or file, level switch module, digital baseband block, RF modulation module, Analog Baseband module, MIC/ loudspeaker, camera, keyboard, power module and LCD; Described MPU is electrically connected with communications module by level switch module, or is electrically connected with the bluetooth module, with the access to wireless communication network.This MPU is electrically connected with antenna by level switch module, digital baseband block, Analog Baseband module, RF modulation module successively.Described communications module comprises GSM module, CDMA module, WCDMA module or other communications module.
As shown in Figure 2, a kind of data transmission method based on mobile communication cluster network may further comprise the steps:
In s1, when transmission,, MPU sends by self UART interface that the AT instruction starts and the control communications module, utilizes cornet in the group that the cluster short number service provides to send the request of voice call to target terminal or server, sets up voice and connects; The file of described SDRAM of being stored in or SD card or data all adopt binary zero, 1 signal to store; Described communications module is GSM module, CDMA module, WCDMA module or bluetooth module;
After s2, communication two ends connect, transmitting terminal reads data or file in SDRAM or the SD card by MPU, transmitting terminal is modulated into audio data stream with data or file, and according to the combination of packet header, text, verification and bag tail, segmentation is with the file or data division packing the carrying out asynchronous transmission that read; The described audio data stream that is modulated into is: Binary Zero adopts high pitch to transmit, and adopts bass to transmit to signal 1, and high pitch and bass are formed the audio data stream that will transmit.The described modulation step that is modulated into audio data stream is: Binary Zero adopts high pitch to transmit, and adopts bass to transmit to signal 1, and high pitch and bass are formed the audio data stream that will transmit;
S3, receiving terminal at first carry out demodulation to audio data stream, each packet to demodulation carries out verification again, compare with check information, if check is correct, then that verification is correct packet reconfigures and becomes binary file and store, and return a successful message, after transmitting terminal confirms that transfer of data is finished, stop to send; If check incorrectly, require transmitting terminal to resend this packet; The step that described audio data stream is carried out demodulation is: will receive high pitch and be demodulated into Binary Zero, the bass that receives is demodulated into binary one;
S4, cut-out voice connection after transfer of data is finished.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (2)
1. the data transmission method based on mobile communication cluster network is characterized in that, may further comprise the steps:
In s1, when transmission,, MPU sends by self UART interface that the AT instruction starts and the control communications module, utilizes cornet in the group that the cluster short number service provides to send the request of voice call to target terminal or server, sets up voice and connects;
After s2, communication two ends connect, transmitting terminal reads the data in SDRAM or the SD card by MPU, transmitting terminal becomes audio data stream with data-modulated, and according to the combination of packet header, text, verification and bag tail, segmentation is with data division packing the carrying out asynchronous transmission that reads;
The modulation step that is modulated into audio data stream of described step s2 is: Binary Zero adopts high pitch to transmit, and adopts bass to transmit to binary one, and high pitch and bass are formed the audio data stream that will transmit;
S3, receiving terminal at first carry out demodulation to audio data stream, each packet to demodulation carries out verification again, compare with check information, if verification is correct, then that verification is correct packet reconfigures and becomes binary file and store, and return a successful message, after transmitting terminal confirms that transfer of data is finished, stop to send; If verification is incorrect, require transmitting terminal to resend this packet;
Described step s3 sound intermediate frequency data flow is carried out demodulation step and is: will receive high pitch and be demodulated into Binary Zero, the bass that receives is demodulated into binary one;
S4, cut-out voice connection after transfer of data is finished.
2. a kind of data transmission method based on mobile communication cluster network according to claim 1 is characterized in that, the data that are stored in SDRAM or SD card among the described step s2 all adopt binary zero, 1 signal to store; Described communications module is GSM module, CDMA module, WCDMA module or bluetooth module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101254927A CN101184027B (en) | 2007-12-24 | 2007-12-24 | Mobile communication cluster network based data transmission method and system thereof |
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| CN2007101254927A CN101184027B (en) | 2007-12-24 | 2007-12-24 | Mobile communication cluster network based data transmission method and system thereof |
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| CN101184027A CN101184027A (en) | 2008-05-21 |
| CN101184027B true CN101184027B (en) | 2011-11-16 |
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| US9888293B2 (en) * | 2012-10-11 | 2018-02-06 | Samsung Electronics Co., Ltd. | Apparatus and method for delivering and receiving multimedia data in hybrid network |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1585529A (en) * | 2004-06-12 | 2005-02-23 | 中兴通讯股份有限公司 | Method for realizing speech buffer storage in digital cluster system |
| CN1798359A (en) * | 2004-12-21 | 2006-07-05 | 华为技术有限公司 | Reminding system and method for fax service based on wireless local loop system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1585529A (en) * | 2004-06-12 | 2005-02-23 | 中兴通讯股份有限公司 | Method for realizing speech buffer storage in digital cluster system |
| CN1798359A (en) * | 2004-12-21 | 2006-07-05 | 华为技术有限公司 | Reminding system and method for fax service based on wireless local loop system |
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