CN110380943A - A kind of control box remote transmission device and its implementation based on E1 - Google Patents
A kind of control box remote transmission device and its implementation based on E1 Download PDFInfo
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- CN110380943A CN110380943A CN201910677253.5A CN201910677253A CN110380943A CN 110380943 A CN110380943 A CN 110380943A CN 201910677253 A CN201910677253 A CN 201910677253A CN 110380943 A CN110380943 A CN 110380943A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 103
- 230000005236 sound signal Effects 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000002708 enhancing effect Effects 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
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- 238000004088 simulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
- H04L12/462—LAN interconnection over a bridge based backbone
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
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Abstract
The invention discloses a kind of control box remote transmission device and its implementation based on E1.The equipment includes switching power source chip, LDO power supply chip, RS-485 interface chip, CODEC chip, processor chips, Ethernet E1 bridge chip, SDRAM chip, sends driving chip, receives driving chip and network transformer；Two identical equipment work in pairs, and station radio set end transmission device connects station radio set by communication interface, and E1 interface accesses E1 transmission line；It controls box end transmission device and control box is connected by communication interface, E1 transmission line is accessed by E1 interface；The analog audio signal that station radio set and control box transmission come and RS-485 data are converted to E1 data by equipment, remote transmission is carried out by E1 transmission line again, it realizes and railway station radio station is carried out by E1 transmission line and controls the remote transmission of data and voice communication between box, improve the flexibility of column adjusting system framework.
Description
Technical field
The present invention relates to radio control box remote transmission device, in particular to a kind of control box remote transmission based on E1 is set
Standby and its implementation.
Background technique
Currently, generally using wired connection mode between China railways station radio set and control box, it is total to generally use RS-485
Line carries out director data transmission, carries out voice transfer using analog audio signal.Since RS-485 bus and analogue audio frequency are wired
Transmission range is limited, is unable to satisfy in field engineering control box zooming out the demand used.In many railway station regions in China
E1 transmission line is all equipped between station, E1 is 30 tunnel pulse-code modulation PCM, using synchronous time division multiplexing technology by 30 voices
Channel and 2 control channels are complex as the IA High Speed Channel of a 2.048Mbit/s, and optical fiber can be used as transmission medium, have
Data remote transmission ability, but station radio set and control pod interface can not all be directly accessed E1 transmission line and carry out remote transmission.
Summary of the invention
In view of the problems existing in the prior art, control box and station radio set are zoomed out the needs of using in order to meet, is realized
Railway station radio station is carried out by E1 transmission line and controls the remote transmission of data and voice communication between box, improves column adjusting system
The flexibility of framework, the present invention provide a kind of control box remote transmission device and its implementation based on E1.
The technical solution adopted by the present invention is that: a kind of control box remote transmission device based on E1, it is characterised in that: including
The switching power source chip of model LM22670, the LDO power supply chip of model LP5907MFX-1.8, model SN65HVD75
RS-485 interface chip, the CODEC chip of model TLV320AIC3106C, the processor chips of model LPC4337, type
Number for the Ethernet E1 bridge chip of SE0164, the SDRAM chip of model MT48LC8M16A2, model 74LS240 hair
Send the network transformer for receiving driving chip and model PT22-1161 of driving chip, model DS34C86；Wherein switch
Power supply chip input terminal connects external DC12V power supply, and output end connects LDO power supply chip input terminal and equipment other devices
DC3.3V energization input；LDO power supply chip output end connects other devices of equipment DC1.8V energization input；RS-485 interface
The 485 interfaces connection station radio set of chip or the RS-485 data-interface for controlling box, TTL processor of interface connection chip
UART1 interface；The MIC3L pin connection station radio set of CODEC chip or the audio output pin for controlling box, LEFT_LOP pin
It connects station radio set or controls the audio input pin of box；IIC interface and IIS processor of interface connection chip；Ethernet E1 net
The MII interface of the MII processor of interface connection chip of bridge chip, sdram interface connect SDRAM chip, the connection of E1_OUT interface
The INPUT interface of driving chip is sent, the connection of E1_IN interface receives the OUTPUT interface of driving chip；Network transformer 1-2CT
Interface connection sends the OUTPUT interface of driving chip, and 1-1CT interface connects external E1 transmission line input interface, and 2-1CT connects
Mouth connection receives the INPUT interface of driving chip, and 2-2CT interface connects external E1 transmission line output interface.
A kind of implementation method of control box remote transmission device based on E1 of the present invention is: by Switching Power Supply core
DC12V external power supply is converted to and is powered after DC3.3V to other devices of equipment by piece；DC3.3V is converted by LDO power supply chip
DC1.8V powers to other devices of equipment；The number between RS-485 bus and Transistor-Transistor Logic level serial ports is carried out by RS-485 interface chip
According to conversion, realize that station radio set or control box are communicated with the director data between processor chips；Processor chips pass through IIC interface
Control management is carried out to CODEC chip, digital audio-frequency data communication is carried out by IIS interface and CODEC chip, is connect by MII
Mouth carries out Ethernet data communication with Ethernet E1 bridge chip；It is by CODEC chip that station radio set or control box audio is defeated
The analog audio signal of pin output is converted into digital audio-frequency data and is transferred to processor chips out, and will connect from processor chips
The digital audio-frequency data received is converted into analog audio signal and is transferred to station radio set or control box audio input pin；Pass through place
Reason device chip packages the data that RS-485 interface chip and the transmission of CODEC chip come processing, is converted to Ethernet data
After be transferred to Ethernet E1 bridge chip, and the Ethernet data that the transmission of Ethernet E1 bridge chip comes is subjected to subpackage processing,
Director data is transferred to RS-485 interface chip, digital audio-frequency data is transferred to CODEC chip；Pass through Ethernet E1 bridge
Chip is transferred to transmission driving chip after the Ethernet data that processor chips transmission comes is converted to E1 data, and drives receiving
The E1 data that dynamic chip transmission comes are transferred to processor chips after being converted to Ethernet data；By sending driving chip enhancing hair
Send the driving capability of E1 data-signal；The driving capability of E1 data-signal is received by receiving driving chip enhancing；Pass through network
Transformer carries out transmission insulation blocking and signal enhancing to the E1 data sent and received；Ethernet is carried out by SDRAM chip
E1 bridge chip data transmit-receive caching；The analog audio signal that station radio set end remote transmission device exports station radio set is converted
At digital audio-frequency data, the director data that sends with station radio set packages processing in processor chips, is converted to Ethernet
It is transferred to Ethernet E1 bridge chip after data, is reconverted into E1 Data Concurrent and is sent to E1 transmission line, pass through E1 transmission line
It is transferred to control box end remote transmission device, while will be by the received E1 data of E1 transmission line in Ethernet E1 bridge chip
It is transferred to processor chips progress subpackage processing after being converted to Ethernet data, director data is transferred to station radio set data and is connect
Mouthful, it digital audio-frequency data is transferred to CODEC chip is converted to and be transferred to station radio set audio input after analog audio signal and draw
Foot；The analog audio signal for controlling box output is converted into digital audio-frequency data by control box end remote transmission device, with control box
The director data of transmission packages processing in processor chips, is transferred to Ethernet E1 bridge core after being converted to Ethernet data
Piece is reconverted into E1 Data Concurrent and is sent to E1 transmission line, is transferred to station radio set end remote transmission by E1 transmission line and sets
It is standby, while processing will be transferred to after Ethernet E1 bridge chip is converted to Ethernet data by the E1 data of E1 line receiver
Device chip carries out subpackage processing, and director data is transferred to control box data-interface, digital audio-frequency data is transferred to CODEC core
Piece is transferred to control box audio input pin after being converted to analog audio signal；It realizes and railway station is carried out by E1 transmission line
The remote transmission of data and voice communication between radio station and control box.
Data between railway station radio station and control box are carried out by E1 transmission line the beneficial effects of the present invention are: realizing
With the remote transmission of voice communication, the flexibility of column adjusting system framework is improved.
Detailed description of the invention
Fig. 1 is present device application connection schematic diagram；
Fig. 2 is that box remote transmission device circuit theory schematic diagram is controlled in Fig. 1.
Specific embodiment
For a clearer understanding of the present invention, being described in detail below in conjunction with drawings and examples.
As shown in Figure 1, two identical control box remote transmission devices work in pairs, the transmission device at station radio set end is logical
Communication interface connection station radio set is crossed, E1 interface accesses E1 transmission line；The transmission device for controlling box end is connected by communication interface
Control box is connect, E1 transmission line is accessed by E1 interface；The analogue audio frequency that transmission device comes station radio set and control box transmission
Signal and RS-485 data are converted to E1 data, then carry out remote transmission by E1 transmission line, while will be from E1 line receiver
To E1 data be converted to analog audio signal and RS-485 data are transferred to station radio set and control box；It realizes and is passed by E1
Defeated route carries out railway station radio station and controls the remote transmission of data and voice communication between box, improves column adjusting system framework
Flexibility.
As shown in Fig. 2, a kind of control box remote transmission device based on E1 includes the Switching Power Supply core of model LM22670
Piece, the LDO power supply chip of model LP5907MFX-1.8, the RS-485 interface chip of model SN65HVD75, model
The CODEC chip of TLV320AIC3106C, the processor chips of model LPC4337, model SE0164 Ethernet E1 net
Bridge chip, the SDRAM chip of model MT48LC8M16A2, the transmission driving chip of model 74LS240, model
The network transformer of the reception driving chip and model PT22-1161 of DS34C86.
Switching power source chip input terminal connects external DC12V power supply, and output end connects LDO power supply chip input terminal and equipment
Other devices DC3.3V energization input, LDO power supply chip output end connect other devices of equipment DC1.8V energization input；It is logical
It crosses switching power source chip and is converted to DC12V external power supply and powered after DC3.3V to other devices of equipment, pass through LDO power supply chip
DC3.3V is converted DC1.8V to power to other devices of equipment.
485 interface of RS-485 interface chip connects station radio set or controls the RS-485 data-interface of box, the connection of TTL interface
Processor chips UART1 interface；The data between RS-485 bus and Transistor-Transistor Logic level serial ports are carried out by RS-485 interface chip to turn
It changes, realizes that station radio set or control box are communicated with the director data between processor chips.
CODEC chip MIC3L pin connects station radio set or controls the audio output pin of box, the connection of LEFT_LOP pin
Station radio set or the audio input pin for controlling box；IIC interface and IIS processor of interface connection chip；Processor chips pass through
IIC interface carries out control management to CODEC chip, carries out digital audio-frequency data communication by IIS interface and CODEC chip；It is logical
It crosses CODEC chip and the analog audio signal of station radio set or control box audio output pin output is converted into digital audio-frequency data
Processor chips are transferred to, and the digital audio-frequency data received from processor chips is converted into analog audio signal and is transferred to
Station radio set or control box audio input pin.
The connection of Ethernet E1 bridge chip MII processor of interface connection chip MII interface, the connection of E1_OUT interface, which is sent, drives
Dynamic chip I NPUT interface, the connection of E1_IN interface receive driving chip OUTPUT interface, and sdram interface connects SDRAM chip；Place
It manages device chip and Ethernet data communication is carried out by MII interface and Ethernet E1 bridge chip；By processor chips by RS-
The data that 485 interface chips and the transmission of CODEC chip come package processing, are transferred to Ethernet after being converted to Ethernet data
E1 bridge chip, and the Ethernet data that the transmission of Ethernet E1 bridge chip comes is subjected to subpackage processing, director data is transmitted
To RS-485 interface chip, digital audio-frequency data is transferred to CODEC chip；By Ethernet E1 bridge chip by processor core
The Ethernet data that piece transmission comes is transferred to transmission driving chip after being converted to E1 data, and will receive what driving chip transmission came
E1 data are transferred to processor chips after being converted to Ethernet data；Ethernet E1 bridge chip number is carried out by SDRAM chip
It is cached according to transmitting-receiving.
The connection of network transformer 1-2CT interface sends driving chip OUTPUT interface, and 1-1CT interface connects external E1 transmission
Route input interface, the connection of 2-1CT interface receive driving chip INPUT interface, and it is defeated that 2-2CT interface connects external E1 transmission line
Outgoing interface；The driving capability of E1 data-signal is sent by sending driving chip enhancing；It is received by receiving driving chip enhancing
The driving capability of E1 data-signal；Transmission insulation blocking and signal are carried out to the E1 data sent and received by network transformer
Enhancing.
The analog audio signal that station radio set exports is converted into digital audio-frequency data by station radio set end remote transmission device,
The director data sent with station radio set packages processing in processor chips, is transferred to ether after being converted to Ethernet data
E1 bridge chip is netted, E1 Data Concurrent is reconverted into and is sent to E1 transmission line, it is remote to be transferred to control box end by E1 transmission line
Journey transmission device, while Ethernet data will be converted in Ethernet E1 bridge chip by the received E1 data of E1 transmission line
After be transferred to processor chips carry out subpackage processing, director data is transferred to station radio set data-interface, by digital audio number
Station radio set audio input pin is transferred to according to being transferred to after CODEC chip is converted to analog audio signal；It is long-range to control box end
The analog audio signal for controlling box output is converted into digital audio-frequency data by transmission device, and the director data sent with control box exists
Processor chips package processing, are transferred to Ethernet E1 bridge chip after being converted to Ethernet data, are reconverted into E1 number
According to and be sent to E1 transmission line, station radio set end remote transmission device is transferred to by E1 transmission line, while E1 will be passed through
The E1 data of line receiver are transferred to processor chips after Ethernet E1 bridge chip is converted to Ethernet data and carry out subpackage
Director data is transferred to control box data-interface, digital audio-frequency data is transferred to CODEC chip and is converted to analog audio by processing
Control box audio input pin is transferred to after frequency signal；It realizes and is carried out between railway station radio station and control box by E1 transmission line
The remote transmission of data and voice communication.
Claims (2)
1. a kind of control box remote transmission device based on E1, it is characterised in that: the Switching Power Supply core including model LM22670
Piece, the LDO power supply chip of model LP5907MFX-1.8, the RS-485 interface chip of model SN65HVD75, model
The CODEC chip of TLV320AIC3106C, the processor chips of model LPC4337, model SE0164 Ethernet E1 net
Bridge chip, the SDRAM chip of model MT48LC8M16A2, the transmission driving chip of model 74LS240, model
The network transformer of the reception driving chip and model PT22-1161 of DS34C86；Wherein switching power source chip input terminal connects
External DC12V power supply, output end connect LDO power supply chip input terminal and equipment other devices DC3.3V energization input；LDO electricity
Source chip output end connects other devices of equipment DC1.8V energization input；485 interfaces of RS-485 interface chip connect station
Radio station or the RS-485 data-interface for controlling box, the UART1 interface of TTL processor of interface connection chip；CODEC chip
MIC3L pin connects station radio set or controls the audio output pin of box, and LEFT_LOP pin connects station radio set or control box
Audio input pin；IIC interface and IIS processor of interface connection chip；The MII interface connection of Ethernet E1 bridge chip
The MII interface of device chip is managed, sdram interface connects SDRAM chip, and the INPUT that the connection of E1_OUT interface sends driving chip connects
Mouthful, the connection of E1_IN interface receives the OUTPUT interface of driving chip；The connection of network transformer 1-2CT interface sends driving chip
OUTPUT interface, 1-1CT interface connects external E1 transmission line input interface, and the connection of 2-1CT interface receives driving chip
INPUT interface, 2-2CT interface connect external E1 transmission line output interface.
2. a kind of implementation method of control box remote transmission device based on E1 as described in claim 1, it is characterised in that: logical
It crosses switching power source chip and is converted to DC12V external power supply and powered after DC3.3V to other devices of equipment；Pass through LDO power supply chip
DC3.3V is converted DC1.8V to power to other devices of equipment；RS-485 bus and TTL electricity are carried out by RS-485 interface chip
Data conversion between flat serial ports realizes that station radio set or control box are communicated with the director data between processor chips；Processor core
Piece carries out control management to CODEC chip by IIC interface, and it is logical to carry out digital audio-frequency data by IIS interface and CODEC chip
Letter carries out Ethernet data communication by MII interface and Ethernet E1 bridge chip；By CODEC chip by station radio set or
The analog audio signal of control box audio output pin output is converted into digital audio-frequency data and is transferred to processor chips, and will be from
The digital audio-frequency data that processor chips receive be converted into analog audio signal be transferred to station radio set or control box audio it is defeated
Enter pin；The data that RS-485 interface chip and the transmission of CODEC chip come are packaged processing by processor chips, are converted
To be transferred to Ethernet E1 bridge chip after Ethernet data, and the Ethernet data that the transmission of Ethernet E1 bridge chip is come into
Row subpackage processing, is transferred to RS-485 interface chip for director data, digital audio-frequency data is transferred to CODEC chip；Pass through
Ethernet E1 bridge chip is transferred to transmission driving core after the Ethernet data that processor chips transmission comes is converted to E1 data
Piece, and will receive after the E1 data that driving chip transmission comes are converted to Ethernet data and be transferred to processor chips；Pass through transmission
Driving chip enhancing sends the driving capability of E1 data-signal；The driving of E1 data-signal is received by receiving driving chip enhancing
Ability；Transmission insulation blocking and signal enhancing are carried out to the E1 data sent and received by network transformer；Pass through SDRAM core
Piece carries out Ethernet E1 bridge chip data transmit-receive caching；The simulation that station radio set end remote transmission device exports station radio set
Audio signal is converted into digital audio-frequency data, and the director data sent with station radio set packages processing in processor chips,
It is transferred to Ethernet E1 bridge chip after being converted to Ethernet data, E1 Data Concurrent is reconverted into and is sent to E1 transmission line, is led to
It crosses E1 transmission line and is transferred to control box end remote transmission device, while will be by the received E1 data of E1 transmission line in ether
Net E1 bridge chip is transferred to processor chips progress subpackage processing after being converted to Ethernet data, and director data is transferred to vehicle
Digital audio-frequency data is transferred to after CODEC chip is converted to analog audio signal and is transferred to station electricity by station radio data-interface
Platform audio input pin；The analog audio signal for controlling box output is converted into digital audio number by control box end remote transmission device
According to, the director data sent with control box packages processing in processor chips, be converted to be transferred to after Ethernet data with
E1 bridge chip is netted very much, E1 Data Concurrent is reconverted into and is sent to E1 transmission line, station radio set is transferred to by E1 transmission line
Remote transmission device is held, while Ethernet data will be converted in Ethernet E1 bridge chip by the E1 data of E1 line receiver
After be transferred to processor chips carry out subpackage processing, by director data be transferred to control box data-interface, by digital audio-frequency data
It is transferred to after CODEC chip is converted to analog audio signal and is transferred to control box audio input pin；It realizes and passes through E1 transmission line
Road carries out railway station radio station and controls the remote transmission of data and voice communication between box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910677253.5A CN110380943A (en) | 2019-07-25 | 2019-07-25 | A kind of control box remote transmission device and its implementation based on E1 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910677253.5A CN110380943A (en) | 2019-07-25 | 2019-07-25 | A kind of control box remote transmission device and its implementation based on E1 |
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| CN210274114U (en) * | 2019-07-25 | 2020-04-07 | 天津七一二通信广播股份有限公司 | Station radio station control box remote transmission equipment based on E1 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201608727U (en) * | 2010-03-23 | 2010-10-13 | 南京普天网络有限公司 | Converging type conversion device capable of dynamically distributing E1 ways for 16-way network bridge business |
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