CN109131443A - A kind of column tail control box and its implementation - Google Patents
A kind of column tail control box and its implementation Download PDFInfo
- Publication number
- CN109131443A CN109131443A CN201811037070.9A CN201811037070A CN109131443A CN 109131443 A CN109131443 A CN 109131443A CN 201811037070 A CN201811037070 A CN 201811037070A CN 109131443 A CN109131443 A CN 109131443A
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- China
- Prior art keywords
- chip
- interface
- arm processor
- storage
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 12
- 230000003137 locomotive effect Effects 0.000 claims abstract description 9
- 101000823089 Equus caballus Alpha-1-antiproteinase 1 Proteins 0.000 claims description 5
- 101000651211 Homo sapiens Transcription factor PU.1 Proteins 0.000 claims description 5
- 102100027654 Transcription factor PU.1 Human genes 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0054—Train integrity supervision, e.g. end-of-train [EOT] devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0072—On-board train data handling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a kind of column tail control box and its implementation.The control box includes switching power source chip, LDO power supply chip, arm processor chip, two storage chips, liquid crystal display, backlight driving chip, RS-422 interface chip, audio frequency power amplifier chip, loudspeaker and keyboard；Conversion is powered by switching power source chip and LDO power supply chip；Arm processor chip passes through I/O mouthfuls of acquisition keypad key press informations, pass through storage chip storage configuration information and record data, record data downloading is realized by USB storage device, column tail is carried out by connection liquid crystal display and operation information is shown, passes through connection RS-422 interface chip and column tail locomotive platform main-machine communication；Liquid crystal display is connected by backlight driving chip, and backlight drive is provided；Arm processor is connected by audio frequency power amplifier chip and loudspeaker carries out voice broadcast；Realize operation, the display, record and the downloading of voice broadcast and data of the communication of column tail.
Description
Technical field
The present invention relates to last vehicle of train security protection system, in particular to a kind of column tail control box and its implementation.
Background technique
Railway train tail security protection system has guarantee driving safety in China railways maturation with for many years
Important function.Currently, train end information wireless transmission generallys use 450MHz frequency range analog system, wanted according to Ministry of Industry and Information's associated documents
Summation railway user demand will be popularized in an all-round way in the whole nation and use the digitized bimodulus last vehicle of train security protection system of all new generation
System；Data record only is carried out in host in traditional simulation last vehicle of train security protection system locomotive platform equipment simultaneously, and column tail
Control box does not have the ability of data record and downloading, is not easy to very much the operation and maintenance of equipment.
Summary of the invention
In view of the problems existing in the prior art, in order to meet the digitlization liter of railway train tail security protection system equipment
Grade；Meanwhile solving not having because of column tail control box inconvenient caused by data record and download capabilities, the present invention provides a kind of column tail
Control box and its implementation.
The technical solution adopted by the present invention is that: a kind of column tail control box, it is characterised in that: including model LM22670's
Switching power source chip, the LDO power supply chip of model SPX1117-3.3, the arm processor chip of model LPC4357, two
The first storage chip and the second storage chip, the liquid crystal display of model G043FW01, model of model MX66L51235F
For the backlight driving chip of TPS61165, the RS-422 interface chip of model MAX490E, model SSM3302 audio function
Put the loudspeaker and keyboard of chip, model HBYDT0306-1APZ；The switching power source chip input terminal connects external power supply,
Pass through output end to the power supply of other devices after DC13.8V is converted to DC5V；LDO power supply chip input terminal connection switch power supply core
Piece output end passes through output end to the power supply of other devices after DC5V is converted to DC3.3V；Arm processor chip is connect by I/O
Mouth connection keyboard output, SPI1 interface connect the first storage chip, and SPI_FLASH interface connects the second storage chip, USB interface
It connects external USB and stores equipment, display control interface LCD connection data in liquid crystal display screen interface；The TTL of RS-422 interface chip
Level end interface connects the UART1 interface of arm processor chip, and RS-422 level end interface connects outer array tail locomotive platform master
Machine；Backlight driving chip input terminal connects external power supply, and output end connects LCD screen backlight supply input interface；Audio function
The DAC interface of chip input terminal connection arm processor is put, output end connects loudspeaker input interface.
The implementation method of a kind of column tail control box of the present invention, it is characterised in that: will by switching power source chip
DC13.8V powers after being converted to DC5V for other devices；It is other devices after DC5V is converted to DC3.3V by LDO power supply chip
Part power supply；Arm processor chip acquires keypad key press information by I/O interface and is handled；SPI by SPI1 interface is total
Line and the first storage chip carry out storage and reading that data communication realizes configuration information；Pass through the SPI_ of SPI_FLASH interface
FLASH bus and the second storage chip carry out storage and reading that data communication realizes record data；Pass through the USB of USB interface
Bus carries out communicating realization record data downloading with external USB storage equipment；Liquid crystal display is controlled by display control interface
It carries out column tail and operation information is shown；Arm processor UART1 interface and outer array tail locomotive are carried out by RS-422 interface chip
The bridge joint of Transistor-Transistor Logic level and RS-422 level realizes data communication between platform host；External DC13.8V is supplied by backlight driving chip
Electricity is converted to DC26V and provides backlight drive for liquid crystal display；Audio frequency power amplifier chip exports the DAC interface of arm processor
Loudspeaker progress voice broadcast is given in output after audio signal amplifies processing.
The beneficial effects of the present invention are: realize the operation of column tail communication, display, voice broadcast and data record and under
It carries.
Detailed description of the invention
Fig. 1 is circuit theory schematic diagram of the present invention.
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, a kind of column tail control box includes switching power source chip, LDO power supply chip, arm processor chip, two
A storage chip, liquid crystal display, backlight driving chip, RS-422 interface chip, audio frequency power amplifier chip, loudspeaker and keyboard；
Switching power source chip model LM22670, LDO power supply chip model SPX1117-3.3, arm processor chip model are
LPC4357, two storage chip model MX66L51235F, liquid crystal display model G043FW01, backlight driving chip type
It number is TPS61165, RS-422 interface chip model MAX490E, audio frequency power amplifier chip model is SSM3302, loudspeaker model
For HBYDT0306-1APZ.
Switching power source chip input terminal connects external power supply, by DC13.8V be converted to after DC5V by output end to other
Device power supply；LDO power supply chip input terminal connection switch power supply chip output end, passes through output after DC5V is converted to DC3.3V
It holds to other devices and powers.
The I/O interface connection keyboard output of arm processor chip, by I/O interface capture button information and is handled；
SPI1 interface connects the first storage chip, carries out data communication by spi bus and the first storage chip and realizes configuration information
Storage and reading；SPI_FLASH interface connects the second storage chip, is carried out by SPI_FLASH bus and the second storage chip
Data communication realizes the storage and reading of record data；USB interface connects external USB and stores equipment, will be recorded by usb bus
Data download in external USB equipment；Display control interface LCD connection data in liquid crystal display screen interface, passes through LCD interface instruction
Column tail is carried out with data control liquid crystal display and operation information is shown.
Backlight driving chip input terminal connects external power supply, and output end connects LCD screen backlight supply input interface,
External DC13.8V power supply is converted into DC26V and provides backlight drive for liquid crystal display.
The UART1 interface of the Transistor-Transistor Logic level end interface connection arm processor chip of RS-422 interface chip, RS-422 level
End interface connects outer array tail locomotive platform host, realizes arm processor UART1 interface Transistor-Transistor Logic level and outer array tail locomotive platform master
The bridge joint of machine RS-422 level, to realize the data communication between arm processor chip and outer array tail locomotive platform host.
Audio frequency power amplifier chip input terminal connects the DAC interface of arm processor, and output end connects loudspeaker input interface, will
Loudspeaker progress voice broadcast is given in output after the audio signal of the DAC interface output of arm processor amplifies processing.
Claims (2)
1. a kind of column tail controls box, it is characterised in that: switching power source chip, model including model LM22670
The LDO power supply chip of SPX1117-3.3, the arm processor chip of model LPC4357, two model MX66L51235F
The backlight drive of first storage chip and the second storage chip, the liquid crystal display of model G043FW01, model TPS61165
Dynamic chip, the RS-422 interface chip of model MAX490E, the audio frequency power amplifier chip of model SSM3302, model
The loudspeaker and keyboard of HBYDT0306-1APZ；The switching power source chip input terminal connects external power supply, and DC13.8V is converted
It powers to pass through output end after DC5V to other devices；LDO power supply chip input terminal connection switch power supply chip output end, will
DC5V is powered by output end to other devices after being converted to DC3.3V；Arm processor chip is defeated by I/O interface connection keyboard
Out, SPI1 interface connects the first storage chip, and SPI_FLASH interface connects the second storage chip, and USB interface connects external USB
Store equipment, display control interface LCD connection data in liquid crystal display screen interface；The Transistor-Transistor Logic level end interface of RS-422 interface chip
The UART1 interface of arm processor chip is connected, RS-422 level end interface connects outer array tail locomotive platform host；Backlight drive
Chip input terminal connects external power supply, and output end connects LCD screen backlight supply input interface；The input of audio frequency power amplifier chip
The DAC interface of end connection arm processor, output end connect loudspeaker input interface.
2. a kind of implementation method of column tail control box as described in claim 1, it is characterised in that: will by switching power source chip
DC13.8V powers after being converted to DC5V for other devices；It is other devices after DC5V is converted to DC3.3V by LDO power supply chip
Part power supply；Arm processor chip acquires keypad key press information by I/O interface and is handled, and the SPI by SPI1 interface is total
Line and the first storage chip carry out storage and reading that data communication realizes configuration information, pass through the SPI_ of SPI_FLASH interface
FLASH bus and the second storage chip carry out storage and reading that data communication realizes record data, pass through the USB of USB interface
Bus carries out communicating realization record data downloading with external USB storage equipment, controls liquid crystal display by display control interface
It carries out column tail and operation information is shown, arm processor UART1 interface and outer array tail locomotive are carried out by RS-422 interface chip
The bridge joint of Transistor-Transistor Logic level and RS-422 level realizes data communication between platform host；External DC13.8V is supplied by backlight driving chip
Electricity is converted to DC26V and provides backlight drive for liquid crystal display；Audio frequency power amplifier chip exports the DAC interface of arm processor
Loudspeaker progress voice broadcast is given in output after audio signal amplifies processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037070.9A CN109131443A (en) | 2018-09-06 | 2018-09-06 | A kind of column tail control box and its implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037070.9A CN109131443A (en) | 2018-09-06 | 2018-09-06 | A kind of column tail control box and its implementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109131443A true CN109131443A (en) | 2019-01-04 |
Family
ID=64827352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811037070.9A Pending CN109131443A (en) | 2018-09-06 | 2018-09-06 | A kind of column tail control box and its implementation |
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| CN (1) | CN109131443A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817808A (en) * | 2020-08-10 | 2020-10-23 | 天津七一二通信广播股份有限公司 | Digital train tail emergency radio station and implementation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202827581U (en) * | 2012-08-30 | 2013-03-27 | 北京锦鸿希电信息技术股份有限公司 | Special locomotive radio for train tail |
| CN205365640U (en) * | 2015-12-30 | 2016-07-06 | 北京世纪东方国铁科技股份有限公司 | Be listed as tail control box |
| CN106788833A (en) * | 2016-12-12 | 2017-05-31 | 天津七二通信广播股份有限公司 | A kind of bimodulus row tail locomotive station |
| CN107919920A (en) * | 2017-12-20 | 2018-04-17 | 天津七二通信广播股份有限公司 | A kind of GSM R row tail locomotive station detection device and its implementation |
-
2018
- 2018-09-06 CN CN201811037070.9A patent/CN109131443A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202827581U (en) * | 2012-08-30 | 2013-03-27 | 北京锦鸿希电信息技术股份有限公司 | Special locomotive radio for train tail |
| CN205365640U (en) * | 2015-12-30 | 2016-07-06 | 北京世纪东方国铁科技股份有限公司 | Be listed as tail control box |
| CN106788833A (en) * | 2016-12-12 | 2017-05-31 | 天津七二通信广播股份有限公司 | A kind of bimodulus row tail locomotive station |
| CN107919920A (en) * | 2017-12-20 | 2018-04-17 | 天津七二通信广播股份有限公司 | A kind of GSM R row tail locomotive station detection device and its implementation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817808A (en) * | 2020-08-10 | 2020-10-23 | 天津七一二通信广播股份有限公司 | Digital train tail emergency radio station and implementation method thereof |
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Application publication date: 20190104 |