CN2749189Y - FSK transparent data transmission system - Google Patents
FSK transparent data transmission system Download PDFInfo
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- CN2749189Y CN2749189Y CN 200420110750 CN200420110750U CN2749189Y CN 2749189 Y CN2749189 Y CN 2749189Y CN 200420110750 CN200420110750 CN 200420110750 CN 200420110750 U CN200420110750 U CN 200420110750U CN 2749189 Y CN2749189 Y CN 2749189Y
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- fsk
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Abstract
The utility model discloses an FSK data transparent transmission system, comprising a data acquisition unit (1), a data processing unit (2), and a data transmitting unit (3). The data acquisition unit (1) and the data processing unit (2) are connected through respective RS232 interfaces. The data processing unit (2) and the data transmitting unit (3) are connected through respective FSK method transmitting interfaces respectively. The data processing unit (2) comprises a main controller (5) and a data memory (6). The utility model has the advantages that users can transmit data that are needed to be transmitted through a telephone network easily by a common RS232 serial communication interface only, without understanding the complicated CTSI protocol standard. A recipient can receive data transmitted by FSK data transparent transmission equipment, only if the equipment that the recipient owns is consistent with the CTSI protocol specification of PSTN.
Description
Technical field
The utility model relates to a kind of data transmission system, particularly a kind of fsk data transparent transmission system.
Background technology
Use Internet to carry out transfer of data at present and get more and more, though can realize long-range transfer of data, for the PSTN network, there is the present popularity of following shortcoming: Internet not have PSTN extensive after all; The complexity of using netting twine is more than using telephone wire big; Use Internet also will have the support of computer, inconvenience.In recent years, China's communication network capital construction development was very fast, and telephone penetration rate improves year by year.The fixed-line telephone network sms technique that China Telecom releases has satisfied this demand just.Be based upon the Chinese information terminal service interface specification CTSI agreement on the artificial line, for providing standard in the enterprising line data transparent transmission of simulated voice line.It has stipulated up use DTMF (dual-tone multifrequency) or FSK (frequency shift keying) signal and descending use fsk signal, transmission and response by CAS (prompt tone of server generation terminal) signal between server and the terminal are confirmed mutually, can realize the decoding and the transmission of the data message of phone FSK mode.Thereby realize utilizing telephone network to carry out the transmission of industry spot data various data transparency transfer functions such as user's remote automatic meter reading.But utilize the FSK mode to carry out relatively complexity of transfer of data, also need to understand complicated CTSI consensus standard.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of user no longer to need to understand how to transmit data by FSK at above-mentioned prior art present situation, does not also need to understand complicated CTSI consensus standard and the fsk data transparent transmission system of transmitting data easily.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of fsk data transparent transmission system, comprise data acquisition unit, data processing unit and data transmission unit, described data acquisition unit comprises the MAX232 module, has the RS232 interface on it; Described data processing unit comprises RS232 interface, master controller, data storage and FSK mode transmission interface; Described data transmission unit comprises the RJ11 telephony interface of FSK mode transmission interface, standard and the temporary storage of PSTN;
Data acquisition unit and data processing unit connect by RS232 interface separately, and data processing unit and data transmission unit send data by the FSK mode and link with the RJ11 interface.
Compared with prior art, advantage of the present utility model is that the user no longer needs to understand how to transmit data by FSK, do not need to understand complicated CTSI consensus standard yet, only need just can like a cork required transmission ground data be transmitted by telephone network by common RS232 serial communication interface; No matter and the CTSI protocol specification that what device just the recipient is meets PSTN equally just can receive the data that the fsk data transparent transmission equipment sends.
Description of drawings
Fig. 1 is a schematic block diagram of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.A kind of fsk data transparent transmission system comprises data acquisition unit 1, data processing unit 2 and data transmission unit 3, and described data acquisition unit 1 comprises MAX232 module 4, has the RS232 interface on it; Described data processing unit 2 comprises RS232 interface, master controller 5 and data storage 6, has RS232 interface and FSK mode transmission interface on the master controller 5; Described data transmission unit 3 comprises the RJ11 telephony interface of FSK mode transmission interface, standard and the temporary storage 7 of PSTN;
Operation principle of the present utility model is as follows:
After master controller 5 finishes the Data Receiving of RS232 interface, begin data are sent to the data receiver by the FSK mode from PSTN.Master controller 5 is put through a phone to the fixed net short message platform, platform use fsk signal and master controller 5 are mutual, the CTSI agreement of following jointly by both sides, the data forwarding that system will receive from RS232 Data Receiving port is to the fixed net short message platform, and the fixed net short message platform sends to data the destination of final these data of needs again.
Claims (1)
1, a kind of fsk data transparent transmission system comprises data acquisition unit (1), data processing unit (2) and data transmission unit (3), and it is characterized in that: described data acquisition unit (1) comprises MAX232 module (4), has the RS232 interface on it; Described data processing unit (2) comprises master controller (5) and data storage (6), has RS232 interface and FSK mode transmission interface on the master controller (5); Described data transmission unit (3) comprises the RJ11 telephony interface of FSK mode transmission interface, standard and the temporary storage (7) of PSTN;
Data acquisition unit (1) and data processing unit (2) connect by RS232 interface separately, and data processing unit (2) and data transmission unit (3) link by FSK mode transmission interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110750 CN2749189Y (en) | 2004-12-02 | 2004-12-02 | FSK transparent data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110750 CN2749189Y (en) | 2004-12-02 | 2004-12-02 | FSK transparent data transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2749189Y true CN2749189Y (en) | 2005-12-28 |
Family
ID=35720660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110750 Expired - Fee Related CN2749189Y (en) | 2004-12-02 | 2004-12-02 | FSK transparent data transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2749189Y (en) |
-
2004
- 2004-12-02 CN CN 200420110750 patent/CN2749189Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |