CN202150872U - Station platform and control box remote transmission device - Google Patents
Station platform and control box remote transmission device Download PDFInfo
- Publication number
- CN202150872U CN202150872U CN201120236410U CN201120236410U CN202150872U CN 202150872 U CN202150872 U CN 202150872U CN 201120236410 U CN201120236410 U CN 201120236410U CN 201120236410 U CN201120236410 U CN 201120236410U CN 202150872 U CN202150872 U CN 202150872U
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- control box
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- transmission system
- main equipment
- slave unit
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Abstract
The utility model relates to a station platform and control box remote transmission device. A host device is connected with a station bench host machine via a control cable, and is connected with a 2M transmission system via a 75 ohm BNC type E1 connecting line. A slave device is connected with a control box via the control cable, and is connected with the 2M transmission system via the 75 ohm BNC type E1 connecting line. The host device and the slave device covert an analog voice signal and the RS485 data information into a standard 2.048Mbit/s PCM signal, and at the same time, convert a received standard 2.048Mbit/s PCM signal into the analog voice signal and the RS485 data information. The beneficial effects are that the communication engineering distance between the station platform host machine and the control box is enlarged through using the 2M transmission system, and consequently the flexibility of the dispatching system configuration is improved.
Description
Technical field
The utility model relates to railway wireless train and transfers equipment, particularly a kind of station console and control box remote transmission equipment, and equipment is used for the telecommunication between station console and the control box.
Background technology
At present; In China railways train dispatch radio communication equipment, adopt the RS485 communication mode between station radio set main frame and the control box usually, its data message and analog voice signal directly transmit through control cable; Because the restriction of the direct transmission performance of controlled cable; Cause the engineering distance between station console main frame and the control box generally should not surpass 500 meters, therefore, the flexibility of row adjusting system framework is restricted.
2.048Mbit/s PCM digital link transmission technology is very ripe at present, in railway communication network and public communication network, all is widely used.Therefore; PCM (PulseCodeModulation pulse-code modulation) digital link transmission technology is applied between station radio set main frame and the control box and communicates, replace existing RS485 communication mode and will make the engineering distance between station console main frame and the control box substantially exceed existing 500 meters.And the present domestic bibliographical information that this respect is not arranged as yet.
Summary of the invention
Deficiency in view of traditional communication mode existence; The utility model provides a kind of remote transmission equipment and technology scheme; In this scheme, transmission equipment utilizes the 2M transmission system, accomplishes communicating by letter between station console main frame and the control box; Thereby realize that control box can zoom out the function of communicating by letter with the station console main frame, promoted the flexibility of row adjusting system framework greatly.
The utility model is for realizing above-mentioned purpose; The technical scheme that is adopted is: a kind of station console and control box remote transmission equipment; Comprise main equipment and slave unit; It is characterized in that: main equipment is connected with the station console main frame through control cable, and is connected with the 2M transmission system through 75 ohm of BNC type E1 connecting lines; Slave unit is connected with control box through control cable, and is connected with the 2M transmission system through 75 ohm of BNC type E1 connecting lines; The main equipment circuit mainly is made up of fpga chip, PLL chip, dsp chip, E1 monolithic transmitter and interface, and fpga chip is connected with PLL chip, dsp chip and interface respectively, and E1 monolithic transmitter is connected with PLL chip, dsp chip and E1 interface respectively; The slave unit circuit is identical with the main equipment circuit.
The fpga chip of said main equipment circuit is A3P250-1VQ100I, and dsp chip is TMS320VC5509A.
Main equipment will come from the analog voice signal of station console main frame and the 2.048Mbit/s PCM signal that the RS485 data message changes into standard; Be transferred to slave unit through the 2M transmission system; Receive the 2.048Mbit/s PCM signal of the standard that comes from slave unit simultaneously through the 2M transmission system, and the 2.048Mbit/s PCM signal of the standard of receiving is converted into analog voice signal and RS485 data message;
Slave unit will come from the analog voice signal of control box and 2.048Mbit/s PCM signal that the RS485 data message changes into standard is transferred to main equipment through the 2M transmission system; Receive the 2.048Mbit/s PCM signal of the standard that comes from main equipment simultaneously through the 2M transmission system, and the 2.048Mbit/s PCM signal of the standard of receiving is converted into analog voice signal and RS485 data message.
The beneficial effect of the utility model is: utilize the 2M transmission system with station console main frame and control box communication engineering apart from expansion, improved the flexibility of row adjusting system framework.
Description of drawings
Fig. 1 is the networking block diagram of the utility model;
Fig. 2 is the utility model main equipment schematic block circuit diagram.
Embodiment
Understand the utility model for clearer, describe the utility model in detail in conjunction with accompanying drawing and embodiment:
As shown in Figure 1, station control box remote transmission equipment comprises main equipment and slave unit, and main equipment is connected with the station console main frame through control cable, is connected with the 2M transmission system through 75 ohm of BNC type E1 connecting lines, and main equipment is directly from the power taking of station console main frame; Slave unit is connected with control box through control cable, is connected with the 2M transmission system through 75 ohm of BNC type E1 connecting lines, and slave unit is through external 12V DC power supply.
As shown in Figure 2; The main equipment circuit mainly is made up of fpga chip A3P250-1VQ100I, PLL chip, dsp chip TMS320VC5509A, E1 monolithic transmitter and interface; Fpga chip A3P250-1VQ100I is connected with interface with PLL chip, dsp chip TMS320VC5509A respectively, and E1 monolithic transmitter is connected with PLL chip, dsp chip TMS320VC5509A and E1 interface respectively;
Main equipment and slave unit change into analog voice signal and RS485 data message the 2.048Mbit/ slave unit s PCM signal of standard; 2.048Mbit/s PCM signal with the standard of receiving is converted into analog voice signal and RS485 data message simultaneously; Main equipment and slave unit adopt fpga chip A3P250-1VQ100I to realize the control of PLL chip, E1 monolithic transmitter etc.; Employing dsp chip TMS320VC5509A realizes the data processing of voice pcm bus, ST-BUS bus, thus work such as the interface of realization voice, data and exchange.
According to above-mentioned explanation, can realize the scheme of the utility model in conjunction with art technology.
Claims (2)
1. station console and control box remote transmission equipment comprise main equipment and slave unit, it is characterized in that: main equipment is connected with the station console main frame through control cable, and passes through 75 ohm of BNC type E1 connecting lines and be connected with the 2M transmission system; Slave unit is connected with control box through control cable, and is connected with the 2M transmission system through 75 ohm of BNC type E1 connecting lines; The main equipment circuit mainly is made up of fpga chip, PLL chip, dsp chip, E1 monolithic transmitter and interface, and fpga chip is connected with PLL chip, dsp chip and interface respectively, and E1 monolithic transmitter is connected with PLL chip, dsp chip and E1 interface respectively; The slave unit circuit is identical with the main equipment circuit.
2. a kind of station console as claimed in claim 1 and control box remote transmission equipment is characterized in that: the fpga chip of said main equipment circuit is A3P250-1VQ100I, and dsp chip is TMS320VC5509A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120236410U CN202150872U (en) | 2011-07-06 | 2011-07-06 | Station platform and control box remote transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120236410U CN202150872U (en) | 2011-07-06 | 2011-07-06 | Station platform and control box remote transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150872U true CN202150872U (en) | 2012-02-22 |
Family
ID=45591921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120236410U Expired - Lifetime CN202150872U (en) | 2011-07-06 | 2011-07-06 | Station platform and control box remote transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202150872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350997A (en) * | 2011-07-06 | 2012-02-15 | 天津七一二通信广播有限公司 | Station platform/control box remote transmission device |
-
2011
- 2011-07-06 CN CN201120236410U patent/CN202150872U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350997A (en) * | 2011-07-06 | 2012-02-15 | 天津七一二通信广播有限公司 | Station platform/control box remote transmission device |
| CN102350997B (en) * | 2011-07-06 | 2013-10-16 | 天津七一二通信广播有限公司 | Station platform/control box remote transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120222 Effective date of abandoning: 20161017 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |