CN201146518Y - Data transmission system for remote communication - Google Patents
Data transmission system for remote communication Download PDFInfo
- Publication number
- CN201146518Y CN201146518Y CNU2008200569366U CN200820056936U CN201146518Y CN 201146518 Y CN201146518 Y CN 201146518Y CN U2008200569366 U CNU2008200569366 U CN U2008200569366U CN 200820056936 U CN200820056936 U CN 200820056936U CN 201146518 Y CN201146518 Y CN 201146518Y
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- transmission system
- data transmission
- serial port
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Abstract
The utility model relates to a data transmission system used for remote communication, and the system comprises a host and a DCOM. The data transmission system adopts annular redundant structure, and the DCOM comprises a serial port module, an Emodem module, a reset circuit, an acousto-optic indicating circuit, and a CPU module, wherein, the serial port module, the Emodem module, the reset circuit, the acousto-optic indicating circuit, and the CPU module are all arranged on the DCOM. The DCOM also comprises a data input board and a data output board, wherein, the DCOM is connected with the data input board and the data output board through the serial port module, and the DCOM is connected with two adjacent DCOMs in front and back through the Emodem module. Compared with the prior art, the data transmission system of the utility model is characterized by high measuring accuracy, long-term performance, good reliability, distributed measurement, and high sampling frequency.
Description
Technical field
The utility model relates to the application of embedded modem, particularly a kind of data transmission system that is used for telecommunication.
Background technology
Present modem uses, and has related to industry-by-industry, comprises electricity meter-reading, digital fax, railway systems etc.The form of expression of using for modem also is quite extensive, has: embedded modem, special line modem, synchronous modem, the special-purpose modem of tax control machine, the special-purpose modem of POS machine etc.Along with constantly popularizing of using of modem and ripe, the updating of new product, the performance of modem has obtained large increase, and application market is further segmentation also.Highlight embedded modem at this.
Embedded modem is a hardware adaptations module, is fit to be integrated in the one-board system, need not the input instruction operation interface, and automatic carrier wave can be set connect, transmit the free-running system of data automatically.On the hardware, provide the cpu i/f of data address bus and control signal wire and single board system, modem analog channel interface is provided, be used for the butt joint between the two places; On the software, provide AT command set, by the AT instruction, carry out the initialization setting, carrier wave connects, functions such as transfer of data.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of reliable and stable data transmission system that is used for telecommunication for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of data transmission system that is used for telecommunication, it is characterized in that, this system comprises main frame, DCOM, described data transmission system adopts the ring-type redundancy structure, described DCOM comprises the serial port module, the Emodem module, reset circuit, the acousto-optic indicating circuit, the CPU module, described serial port module, the Emodem module, reset circuit, the acousto-optic indicating circuit, the CPU module all is located on the DCOM, also comprise data tablet, the data output board, described DCOM is by serial port module and data tablet, the data output board connects, and described DCOM is connected by the Emodem module DCOM adjacent with former and later two.
Described serial port module comprises four serial port communications.
Described Emodem module comprises two embedded modem module simulation communication interfaces.
Compare with original technology, the utility model has improved the speed of communication, and the stability of communication and reliability, has also improved the integrated level and the reliability of hardware device itself.
Description of drawings
Fig. 1 is a kind of telecommunication structural representation that is used for the data transmission system of telecommunication of the utility model;
Fig. 2 is a kind of local communication structure schematic diagram that is used for the data transmission system of telecommunication of the utility model.
Embodiment
Embodiment 1
The utility model provides a kind of telecommunication of Emodem module to use, and realizes the transfer of data between the remote railway station.System configuration adopts the ring-type redundancy structure, and every DCOM has two Emodem passages.Every DCOM can hang polylith information gathering plate and data output board down as host computer, carries out local communication by serial port.When normal operation, DCOM upwards transmits each station field data step by step, each station passage break-make situation and station field information under the Ministry of Railways, road bureau and each control centre all can see.Compare with original technology, this hardware communication system has improved the speed of communication, and the stability of communication and reliability, has also improved the integrated level and the reliability of hardware device itself.
The utility model comprises local digital communication and remote analog communication two parts.Its key points in design is: 1,4 serial port communications, can be arranged to RS422 respectively by wire jumper, and RS485, the RS232 communication interface, one of them is the debug terminal interface, other can be used as with the local data transmission channel in station; 2, two embedded modem module simulation communication interfaces can be as the long-range data transmission channel in the adjacent station of railway; 3, the hardware and software design that resets; 4, acousto-optic indication design.
The utility model has been finished: 1, the communication of local data, can pass through one-to-many manner, and realize the data communication of DCOM and a plurality of on-site data gathering plate and output control board; 2, by the modem passage, carry out the transmission of long-range field data between the DCOM; 3, carry out real-time acousto-optic indication for the operating state of local communication and telecommunication.
The DCOM plate is in the application of system
As shown in Figure 1, a kind of data transmission system that is used for telecommunication, this system comprises main frame 5, DCOM11,12,13, described main frame 5 is connected with DCOM 11,13 by modem passage 4, and the DCOM 11,13 that described DCOM 12 is adjacent with former and later two is connected.As shown in Figure 2, the serial communication interface of a DCOM 1 can connect 16 data collection plates or 3, two modem module channels of output control board by RS422 communication interface 2, can connect the two-way information interface.In using at the scene, finish the butt joint at former and later two adjacent stations respectively.Wherein DIB (Data Input Board) represents data tablet, DOB (Data Output Board) expression data output board.
The DCOM design module
The design module of DCOM mainly comprises: serial port module, Emodem module, reset circuit, acousto-optic indicating circuit, CPU module.
Claims (3)
1. data transmission system that is used for telecommunication, it is characterized in that, this system comprises main frame, DCOM, described data transmission system is the ring-type redundancy structure, described DCOM comprises the serial port module, the Emodem module, reset circuit, the acousto-optic indicating circuit, the CPU module, described serial port module, the Emodem module, reset circuit, the acousto-optic indicating circuit, the CPU module all is located on the DCOM, also comprise data tablet, the data output board, described DCOM is by serial port module and data tablet, the data output board connects, and described DCOM is connected by the Emodem module DCOM adjacent with former and later two.
2. a kind of data transmission system that is used for telecommunication according to claim 1 is characterized in that described serial port module comprises four serial port communications.
3. a kind of data transmission system that is used for telecommunication according to claim 1 is characterized in that, described Emodem module comprises two embedded modem module simulation communication interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200569366U CN201146518Y (en) | 2008-04-03 | 2008-04-03 | Data transmission system for remote communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200569366U CN201146518Y (en) | 2008-04-03 | 2008-04-03 | Data transmission system for remote communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201146518Y true CN201146518Y (en) | 2008-11-05 |
Family
ID=40083404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200569366U Expired - Lifetime CN201146518Y (en) | 2008-04-03 | 2008-04-03 | Data transmission system for remote communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201146518Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010127630A1 (en) * | 2009-05-08 | 2010-11-11 | 嘉力时灯光设备(东莞)有限公司 | High-reliable control system and control method based on asynchronous serial communication |
| CN101552662B (en) * | 2008-04-03 | 2011-09-28 | 卡斯柯信号有限公司 | Data transmission system for telecommunication |
-
2008
- 2008-04-03 CN CNU2008200569366U patent/CN201146518Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552662B (en) * | 2008-04-03 | 2011-09-28 | 卡斯柯信号有限公司 | Data transmission system for telecommunication |
| WO2010127630A1 (en) * | 2009-05-08 | 2010-11-11 | 嘉力时灯光设备(东莞)有限公司 | High-reliable control system and control method based on asynchronous serial communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Fuzhong Inventor after: Li Qi Inventor after: Zhang Guangyu Inventor after: Chen Dejun Inventor before: He Fuzhong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HE FUZHONG TO: HE FUZHONG; LI QI; ZHANG GUANGYU; CHEN DEJUN |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20081105 Effective date of abandoning: 20080403 |