CN107689811A - Support 450M simulations with pilot frequency communication and the communication unit and implementation method of MPT1327 clustering functionalitys - Google Patents
Support 450M simulations with pilot frequency communication and the communication unit and implementation method of MPT1327 clustering functionalitys Download PDFInfo
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- CN107689811A CN107689811A CN201710847451.2A CN201710847451A CN107689811A CN 107689811 A CN107689811 A CN 107689811A CN 201710847451 A CN201710847451 A CN 201710847451A CN 107689811 A CN107689811 A CN 107689811A
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- communication
- mpt1327
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- chips
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0018—Communication with or on the vehicle or vehicle train
- B61L15/0027—Radio-based, e.g. using GSM-R
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L2205/00—Communication or navigation systems for railway traffic
Abstract
Support 450M simulations with pilot frequency communication and the communication unit and implementation method of MPT1327 clustering functionalitys the invention discloses a kind of, including by DC D/C power chip LM22670, LDO power supply chips SPX1117 3.3 and LP5907MFX 1.8, arm processor chip LPC4337,2 audio-frequency transformer VT 36003, Codec chips TLV320AIC3106 and simulation cluster channel device TK 8180, outside DC 13.8V power supplies being converted into DC 5V, DC 3.3V and DC 1.8V by DC D/C powers chip and LDO power supply chips and powered for each device；The audio signal and sub-audio signal sent and received by Codec chips and audio-frequency transformer to needs is handled；Management is controlled to simulation cluster channel device by arm processor, switched in 450M simulations between frequency communication pattern, 450M simulation pilot frequency communication patterns and MPT1327 cluster communication patterns, have the technical effect that and meet in the case where not increasing new equipment, communication requirement of the 450M simulations with frequency communication pattern, 450M simulation pilot frequency communication patterns and MPT1327 cluster communication pattern Three models of railway wireless dispatching system is realized, while reduces cost, be easy to driver operation.
Description
Technical field
The present invention relates to a kind of analogue communication unit, more particularly to it is a kind of support 450M simulations with pilot frequency communication and
The communication unit and implementation method of MPT1327 clustering functionalitys.
Background technology
At present in China railways Radio Train Dispatch Communication System still based on the communication of analog system, which part area ground installation
That 450M simulations simulate alien frequencies equipment and MPT1327 cluster devices simultaneously with frequency equipment, 450M or segmentation uses be present；Pass
System locomotive equipment normally only possesses 450M simulations with frequency communication and 450M simulation pilot frequency communication functions, to meet communication requirement locomotive
On also need be equipped with MPT1327 cluster communication functions communication equipment；Communication equipment installing space is nervous on locomotive, and installation is new
Equipment also needs to lay cable, increase antenna and driver operation display terminal simultaneously, and equipment and installation cost are higher, while increase department
Machine operation complexity.
The content of the invention
In view of the problem of prior art is present, in order to meet 450M simulations with frequency communication pattern, 450M simulation pilot frequency communications
The communication requirement of pattern and MPT1327 cluster communication pattern Three models, while reduce cost, be easy to driver operation, the present invention
There is provided it is a kind of support 450M simulation with pilot frequency communication and the communication unit and implementation method of MPT1327 clustering functionalitys.Particular technique
Scheme is：It is a kind of to support 450M simulations with pilot frequency communication and the communication unit of MPT1327 clustering functionalitys（Hereinafter referred to as communication unit
Member）, including include model LM22670 DC-DC power source chip, model SPX1117-3.3 and LP5907MFX-1.8 LDO
Power supply chip, model LPC4337 arm processor chip, 2 model VT-36003 audio-frequency transformer, model
TLV320AIC3106 Codec chips and model TK-8180 simulation cluster channel device；It is characterized in that：The DC-DC
Outside DC 13.8V power supplies are converted to DC 5V by power supply chip LM22670, LDO power supply chips SPX1117-3.3 and
DC 5V are respectively converted into DC 3.3V and DC 1.8V by LP5907MFX-1.8；The UART1 interfaces connection of the arm processor is outer
Portion's equipment, the control communication interface of UART2 interfaces connection simulation cluster channel device, IIS interfaces connect Codec cores with IIC interfaces
Piece；Audio input interface of the one end of the audio-frequency transformer 1 as communication unit, other end connection Codec chips
LINE2LP and LINE2LM pins, the audio output pin RIGHT_LOP of Codec chips are connected to the sound of simulation cluster channel device
Occur frequently into pin MI2；Audio output interface of the one end of audio-frequency transformer 2 as communication unit, other end connection Codec chips
HPLOUT and HPLCOM pins, the audio output pin AFO of simulation cluster channel device is connected to the LINE2RM of Codec chips
Pin；The infrasonic that the MIC3R and LEFT_LOP pins of the Codec chips connect simulation cluster channel device respectively connects sending and receiving
Send pin DEO and DI.
Implementation method is that outside DC 13.8V power supplies are converted into DC by DC-DC power source chip and LDO power supply chips
5V, DC 3.3V and DC 1.8V power for each device；Needs are sent and received by Codec chips and audio-frequency transformer
Audio signal enters line amplitude adjustment processing, and the infrasonic that needs send and receive is believed by Codec chips and arm processor
Number row compile, decoding processing；Arm processor realizes the communication with external equipment by UART0 interfaces, and simulation is collected by UART1
Group channel machine is controlled management；By the use of sub-audio signal as signaling, realize 450M simulations with frequency or 450M simulation alien frequencies moulds
Railway wireless train dispatching communication under formula；When switching to MPT1327 cluster communication patterns, by carrying out MPT1327 collection to channel device
Group communication parameter configuration, realize the railway wireless train dispatching communication under MPT1327 cluster modes.
The beneficial effects of the invention are as follows：Realize and meet 450M simulations with frequency communication mould in the case where not increasing new equipment
The communication requirement of formula, 450M simulation pilot frequency communication patterns and MPT1327 cluster communication pattern Three models, it is cost-effective, be easy to
Driver operation.
Brief description of the drawings
Fig. 1 is principle schematic diagram of the present invention；
Fig. 2 is circuit diagram of the present invention.
Embodiment
For a clearer understanding of the present invention, it is described in detail below in conjunction with drawings and examples.
As shown in Figure 1 and Figure 2, it is a kind of to support 450M simulations with pilot frequency communication and the communication unit of MPT1327 clustering functionalitys
（Hereinafter referred to as communication unit）, including DC-DC power source chip, LDO power supply chips, arm processor chip, 2 audio-frequency transformers,
Codec chips and simulation cluster channel device；Wherein DC-DC power source chip is used using LM22670, LDO power supply chip
SPX1117-3.3 and LP5907MFX-1.8, arm processor chip using LPC4337, audio-frequency transformer using VT-36003,
Codec chips use TK-8180 using TLV320AIC3106 and simulation cluster channel device.
Outside DC 13.8V power supplies are converted to DC 5V and supplied for communication unit internal components by DC-DC power source chip LM22670
Electricity, it is logical that DC 5V are respectively converted into DC 3.3V and DC 1.8V by LDO power supply chip SPX1117-3.3 and LP5907MFX-1.8
Believe the power supply of unit internal components；
External data interface of the UART1 interfaces of arm processor as communication unit, it is responsible for carrying out communication unit and external equipment
Between instruction and data transmission；The control communication interface of UART2 interface connecting channel machines, it is responsible for carrying out between processor and channel device
Instruction and data transmission, so as to realize control management to channel device and data transmitting-receiving；IIS interfaces connect with IIC interfaces
Codec chips, the data and instruction for being responsible for processor and Codec chip chambers are transmitted；
Audio input interface of the one end of audio-frequency transformer 1 as communication unit, the other end connect the LINE2LP of Codec chips
With LINE2LM pins, the audio signal that outside need is sent is input to Codec chips after audio-frequency transformer, by Codec
The audio discrepancy pin MI2 of channel device is output to after chip processing by the RIGHT_LOP pins of Codec chips, is entered by channel device
Row is sent, so as to realize the transmission of audio signal；
Audio output interface of the one end of audio-frequency transformer 2 as communication unit, the other end connection Codec chips HPLOUT and
HPLCOM pins, the audio signal that channel device receives are transferred to Codec chips by channel device audio output pin AFO
LINE2RM pins, audio-frequency transformer is passed through by HPLOUT the and HPLCOM pins of Codec chips after the processing of Codec chips
Communication unit is exported, so as to realize the reception of audio signal；
The infrasonic of the MIC3R and LEFT_LOP pins difference connecting channel machine of Codec chips receives, sends pin DEO and DI；
After the digitlization infrasonic data that arm processor is sent by IIS interfaces are converted to simulation sub-audio signal by Codec chips
Channel device is sent to by LEFT_LOP pins, then is transmitted by channel device, so as to realize the transmission of sub-audio signal；Channel device
The sub-audio signal received, will digitlization Asia after being digitized by Codec chips by DEO pins transmission Codec chips
Voice data is sent to arm processor by IIS interfaces and analyzed and processed, so as to realize the reception of sub-audio signal；
When arm processor control channel machine-cut is changed to 450M simulations with frequency pattern or 450M simulation alien frequencies patterns, pass through infrasonic
Signal realizes 450M simulations with the railway wireless train dispatching communication under frequency or 450M simulation alien frequencies patterns as signaling；Switch to
During MPT1327 cluster communication patterns, MPT1327 cluster communication parameter configurations are carried out to channel device by arm processor, realized
Railway wireless train dispatching communication under MPT1327 cluster modes.
Claims (2)
1. a kind of support 450M simulations with pilot frequency communication and the communication unit of MPT1327 clustering functionalitys（Hereinafter referred to as communication unit
Member）, including include model LM22670 DC-DC power source chip, model SPX1117-3.3 and LP5907MFX-1.8 LDO
Power supply chip, model LPC4337 arm processor chip, 2 model VT-36003 audio-frequency transformer, model
TLV320AIC3106 Codec chips and model TK-8180 simulation cluster channel device；It is characterized in that：The DC-DC
Outside DC 13.8V power supplies are converted to DC 5V by power supply chip LM22670, LDO power supply chips SPX1117-3.3 and
DC 5V are respectively converted into DC 3.3V and DC 1.8V by LP5907MFX-1.8；The UART1 interfaces connection of the arm processor is outer
Portion's equipment, the control communication interface of UART2 interfaces connection simulation cluster channel device, IIS interfaces connect Codec cores with IIC interfaces
Piece；Audio input interface of the one end of the audio-frequency transformer 1 as communication unit, other end connection Codec chips
LINE2LP and LINE2LM pins, the audio output pin RIGHT_LOP of Codec chips are connected to the sound of simulation cluster channel device
Occur frequently into pin MI2；Audio output interface of the one end of audio-frequency transformer 2 as communication unit, other end connection Codec chips
HPLOUT and HPLCOM pins, the audio output pin AFO of simulation cluster channel device is connected to the LINE2RM of Codec chips
Pin；The infrasonic that the MIC3R and LEFT_LOP pins of the Codec chips connect simulation cluster channel device respectively connects sending and receiving
Send pin DEO and DI.
2. 450M is supported to simulate with pilot frequency communication and the communication unit of MPT1327 clustering functionalitys using a kind of described in claim 1
The implementation method of member, it is characterised in that：Implementation method is by outside DC by DC-DC power source chip and LDO power supply chips
13.8V power supplies are converted to DC 5V, DC 3.3V and DC 1.8V and powered for each device；Pass through Codec chips and audio-frequency transformer pair
The audio signal for needing to send and receive enters line amplitude adjustment processing, by Codec chips and arm processor to needing to send
Compiled with the sub-audio signal row received, decoding processing；Arm processor realizes the communication with external equipment by UART0 interfaces,
Management is controlled to simulation cluster channel device by UART1；By the use of sub-audio signal as signaling, realize 450M simulations with frequency
Or the railway wireless train dispatching communication under 450M simulation alien frequencies patterns；When switching to MPT1327 cluster communication patterns, by channel
Machine carries out MPT1327 cluster communication parameter configurations, realizes the railway wireless train dispatching communication under MPT1327 cluster modes.
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|---|---|---|---|
| CN201710847451.2A CN107689811A (en) | 2017-09-19 | 2017-09-19 | Support 450M simulations with pilot frequency communication and the communication unit and implementation method of MPT1327 clustering functionalitys |
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| CN201710847451.2A CN107689811A (en) | 2017-09-19 | 2017-09-19 | Support 450M simulations with pilot frequency communication and the communication unit and implementation method of MPT1327 clustering functionalitys |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809351A (en) * | 2018-06-19 | 2018-11-13 | 天津七二通信广播股份有限公司 | A kind of 450M communication units having power temperature compensation and its implementation |
| CN109274447A (en) * | 2018-09-06 | 2019-01-25 | 天津七二通信广播股份有限公司 | A kind of railway radio station 450M wireless communication unit and its implementation |
| CN116366087A (en) * | 2023-05-30 | 2023-06-30 | 天津七一二移动通信有限公司 | Station antenna feeder system of railway train shunting station and implementation method |
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| CN116366087B (en) * | 2023-05-30 | 2023-10-27 | 天津七一二移动通信有限公司 | Station antenna feeder system of railway train shunting station and implementation method |
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Application publication date: 20180213 |