CN107342828A - A kind of digital broadcasting control system applied to train - Google Patents
A kind of digital broadcasting control system applied to train Download PDFInfo
- Publication number
- CN107342828A CN107342828A CN201611152947.XA CN201611152947A CN107342828A CN 107342828 A CN107342828 A CN 107342828A CN 201611152947 A CN201611152947 A CN 201611152947A CN 107342828 A CN107342828 A CN 107342828A
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- China
- Prior art keywords
- module
- driver
- interface
- intercommunication
- real time
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
- H04H20/62—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast for transportation systems, e.g. in vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/12—Arrangements for observation, testing or troubleshooting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/38—Arrangements for distribution where lower stations, e.g. receivers, interact with the broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
Abstract
The present invention relates to a kind of digital broadcasting control system applied to train, including：Real time operation module, realizes embedded real-time operation；Network pack receiving and transmitting processing module, it is connected with the real time operation module, realizes the reception and transmission of network bag；Business function module, the real time operation module and network pack receiving and transmitting processing module are connected respectively, corresponding operating is performed according to the order received；LCD display module, the real time operation module and business function module are connected respectively, respond the driving of real time operation module, and send operational order bag to business function module；Database interface module, the real time operation module and business function module are connected respectively, realizes the reading and write-in of database file.Compared with prior art, the present invention has the advantages that stability is ageing good, vdiverse in function.
Description
Technical field
The present invention relates to Embedded Network Device field, and system is controlled more particularly, to a kind of digital broadcasting applied to train
System.
Background technology
Auxiliary control appliance of the digital broadcast controller as tms signal, it is that passenger is wide in modern train broadcast system
Important component in broadcast system.
Digital broadcast controller can complete the interacting of subway drivers' cab and ground control centre, railway car is carried out it is wide
Broadcast and instruct the functions such as display with passenger's intercommunication, drivers' cab intercommunication, real-time display TMS information, train fault and trouble shooting.Grasping
During work, driver, can be in real time to compartment broadcast is called out the stops, urgent broadcast and mouth broadcast operation by LCD screen.Asked when there is passenger's intercommunication
Ask, sequencing can also be asked according to passenger's intercommunication on the lcd screen, determined to connect the request of passenger by driver.It is existing
Digital broadcast controller also has that antijamming capability is not strong, can not carry out the defects of network upgrade, it is necessary to be improved.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of stability is good, function
Various digital broadcasting control system applied to train.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of digital broadcasting control system applied to train, including：
Real time operation module, realizes embedded real-time operation；
Network pack receiving and transmitting processing module, it is connected with the real time operation module, realizes the reception and transmission of network bag；
Business function module, the real time operation module and network pack receiving and transmitting processing module are connected respectively, according to receiving
Order perform corresponding operating；
LCD display module, the real time operation module and business function module are connected respectively, response real time operation module
Driving, and send operational order bag to business function module；
Database interface module, the real time operation module and business function module are connected respectively, realizes database file
Reading and write-in；
Exception monitoring module, is connected with business function module, carries out exception monitoring in real time, is monitoring abnormal generation
When, start exception and ignore technology, record the exception.
The real time operation module include be connected with the network pack receiving and transmitting processing module trawl performance unit, with it is described
The frame buffered-display driver unit of LCD display module connection, the file storage unit that is connected with the database interface module and with institute
State the audio driven unit of business function module connection.
Network bag transmission in the form of queue.
The business function module includes：
Command resolution unit, for parsing by the operational order bag of LCD display module transmission and being handled by network pack receiving and transmitting
The network bag of module transmission；
Operation execution unit, for performing corresponding operating according to the order obtained after parsing, including working condition switches, certainly
It is dynamic call out the stops, call out the stops manually, urgent broadcast, mouth are broadcast, driver is to driver passenger's intercommunication of making peace.
The LCD display module is used to realize the interaction with driver, including：
Manual air interface, for receiving the manual broadcasting instructions of driver；
Urgent broadcast interface, the urgent broadcast for receiving driver instructs and display urgent broadcast word；
Mouth broadcasts interface, and the mouth for receiving driver broadcasts instruction, and shows corresponding condition prompting；
Passenger asks interface, for showing passenger's solicited message in order, and receives behaviour of the driver to passenger's solicited message
Instruct, including connect passenger's request or hang up passenger's request；
Driver's intercommunication interface, for showing the intercommunication solicited message of opposite end driver, and receive driver and the intercommunication is asked
The operational order of information；
Sound volume regulation unit, the volume adjusting for receiving driver instruct；
Network upgrade unit, for upgrading the equipment firmware of LCD display module by network interface；
Interface updating block, for being updated to multiple interfaces in LCD display module；
The manual broadcasting instructions, urgent broadcast instruction, mouth are broadcast instruction, operational order and volume adjusting instruction and are transmitted to
The business function module is handled.
The LCD display module also includes：
Broadcast priority switch unit, for being broadcast according to driver instruction to manual air interface, urgent broadcast interface and mouth
The priority at interface switches over.
If the passenger asks interface in driver passenger's intercommunication state, and driver's intercommunication interface receives and shown pair
When holding the intercommunication request of driver, driver's intercommunication state at driver's intercommunication interface is automatically switched to, hangs up driver passenger's intercommunication state.
The LCD display module also includes：
Intercommunication switch unit, for switching to driver passenger's intercommunication state after terminating in driver's intercommunication state.
The sound volume regulation unit includes：
Cipher authentication subelement, for realizing cipher authentication in volume adjusting.
The LCD display module also includes：
More stand setting unit, more stand signal for receiving and recover signal of more standing, and be transferred to business function module.
Compared with prior art, the present invention has advantages below：
(1) present invention is provided with real time operation module, and embedded real time operation can be achieved, adapt to the need to work long hours
Will, in the case where hardware and running environment do not have failure, can continuously run.When an error has occurred for part, can use different
Often ignore technology, guarantee system will not exit suddenly, while technology is ignored using exception, exception record be put on record to be
The commissioning staff that unites refers to, and improves the stability of whole system.
(2) present invention is provided with network pack receiving and transmitting processing module, and serious prolong will not occur for network packet, serial data
Slow phenomenon.
(3) by the control system of the present invention, the audios of multiple loudspeakers play will not occur it is obvious asynchronous.
(4) DAB, database technology have been used in the invention, using Ethernet as main thoroughfare, are realized
Control, broadcast of the train operator room to guest room.
(5) present invention has network upgrade function, the more flexible convenience of DFU.
(6) present invention uses brand-new hardware PCB design, digital broadcast controller is had more preferable running environment.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the touch-screen thread schematic diagram of LCD display module of the present invention；
Fig. 3 is the control thread schematic diagram of LCD display module of the present invention.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
As shown in figure 1, the present embodiment provides a kind of digital broadcasting control system applied to train, including real time operation mould
Block 1, network pack receiving and transmitting processing module 2, business function module 3, LCD display module 4, database interface module 5 and exception monitoring
Module, wherein, real time operation module 1 realizes embedded real-time operation；Network pack receiving and transmitting processing module 2 and real time operation module 1
Connection, realizes the reception and transmission of network bag；Business function module 3 is connected at real time operation module 1 and network pack receiving and transmitting respectively
Module 2 is managed, corresponding operating is performed according to the order received；LCD display module 4 connects real time operation module 1 and business respectively
Functional module 3, the driving of response real time operation module 1, and send operational order bag to business function module 3；Database interface
Module 5 connects real time operation module 1 and business function module 3 respectively, realizes the reading and write-in of database file；Exception monitoring
Module, it is connected with business function module, carries out exception monitoring in real time, when having monitored abnormal occur, is started exception and ignore skill
Art, record the exception.
1st, real time operation
The trawl performance unit 11 and LCD that real time operation module 1 includes being connected with network pack receiving and transmitting processing module 3 are shown
The frame that module 4 connects buffers (Framebuffer) driver element 12, the file storage unit being connected with database interface module 5
13 and the audio driven unit 14 that is connected with business function module 2.
In the present embodiment, real time operation module 1 using increasing income real time operation system eCos-3.0, it have it is configurable, can
Transplanting, without royalty the features such as, be especially suitable for Embedded Application exploitation, eCos uses hierarchical structure.The system application eCos-3.0
Network stack that version is supported, serial port drive, Flash drivings, Framebuffer drivings, the technology such as Redboot, POSIX multithreading,
For example the processing of network pack receiving and transmitting is exactly a single thread, and business function APP is then made up of multiple threads.
2nd, network pack receiving and transmitting is handled
In the network pack receiving and transmitting processing module 2 of the system, network bag transmission in the form of queue, network packet is set with target
Standby name, target device number start, and are responsible for finding corresponding IP address by network AP P.
Network pack receiving and transmitting processing procedure exists in a manner of a thread, and its workflow is：
At the beginning of upper electricity, according to the buffering area title appointed, the buffer queue being pre-created is opened successively, as line
The suction parameter of journey；
Into after network receiving or sending thread, a series of sockets are created first, and read local hardware I/O pins, it is determined that this
The type of ground equipment, number, the IP forms inquired about in database, local ip address and socket binding are got up；
Into for (；；) Infinite Cyclic, using select mechanism, monitor each socket.If new bag arrives, just connect
Receive and be stored in corresponding buffer queue；If new bag is sent, a bag is just removed from corresponding buffer queue, is sent out
Send.
In order to accelerate thread rotation, after the transmitting-receiving of a complete bag per treatment, a CPU control is actively conceded, is supplied
Other threads take CPU.
3rd, business function
Business function module 2 is responsible for after parsing the LCD orders received, network control command bag, parses these orders, carries out
Working condition switching, audio sample and playback process.Business function module 2 includes command resolution unit and operation execution unit,
Command resolution unit is used to parse by the operational order bag of LCD display module transmission and by the transmission of network pack receiving and transmitting processing module
Network bag；Operation execution unit is used to perform corresponding operating according to the order obtained after parsing, including working condition switches, be automatic
Call out the stops, call out the stops manually, urgent broadcast, mouth are broadcast, driver is to driver passenger's intercommunication of making peace.
Business function module realize function be made up of multiple threads, complete automatic broadcasting, call out the stops manually, urgent broadcast,
The functions such as mouth is broadcast, driver's intercommunication, driver passenger's intercommunication, it is related to two main aspects such as working condition switching, audio broadcasting.Work
Make state switching by a thread to be responsible for, the thread takes next network control bag from queue every time, after parsing, according to business
Priority, carry out state switching, i.e. the exiting of current state, the entrance of new state.This state switching can use existing
A variety of methods.
4th, LCD is shown
LCD display module 4 is used to realize and the interaction of driver, and after upper electricity, LCD enters standby section, waits driver operation,
If LCD, which is detected, receives tms signal, simple displaying tms signal content, driver's contact action, LCD will be sent out to business function APP
Send operational order bag.
LCD display module 4 includes：
Manual air interface, for receiving the manual broadcasting instructions of driver；
Urgent broadcast interface, the urgent broadcast for receiving driver instructs and display urgent broadcast word；
Mouth broadcasts interface, and the mouth for receiving driver broadcasts instruction, and shows corresponding condition prompting；
Passenger asks interface, for showing passenger's solicited message in order, and receives behaviour of the driver to passenger's solicited message
Instruct, including connect passenger's request or hang up passenger's request；
Driver's intercommunication interface, for showing the intercommunication solicited message of opposite end driver, and driver is received to intercommunication solicited message
Operational order；
If passenger asks interface in driver passenger's intercommunication state, and driver's intercommunication interface receives and shows opposite end driver's
When intercommunication is asked, driver's intercommunication state at driver's intercommunication interface is automatically switched to, hangs up driver passenger's intercommunication state；
Sound volume regulation unit, the volume adjusting for receiving driver instruct, including for realizing password in volume adjusting
The cipher authentication subelement of certification；
Network upgrade unit, for upgrading the equipment firmware of LCD display module by network interface；
Interface updating block, for being updated to multiple interfaces in LCD display module；
Manual broadcasting instructions, urgent broadcast instruction, mouth broadcast instruction, operational order and volume adjusting instruction and are transmitted to business
Functional module is handled.
In the present embodiment, LCD display module 4 realizes the interaction with driver by a touch-screen, and the touch-screen can use
800X480 LCDs.The touch-screen carries out GUI programmings, its touch-screen using FLTK window members, MicroWindows
Thread and control thread are as shown in Figures 2 and 3.Wherein, MicroWindows uses the Nano-X graphical programming interfaces carried.Open
Hair personnel call FLTK API to carry out interface programming, and FLTK API will call Nano-X interfaces (compiling FLTK environment automatically
When, configured), Nano-X interfaces are responsible for calling MicroWindows api functions to carry out graphic plotting.MicroWindows makes
The FrameBuffer supported with operating system eCos is driven, and engine is supported as underlying graphics.In addition, will also according to oneself
Hardware design is modified eCos hardware abstraction layers.BCU interfaces carry out the visual design using FLTK.
In another embodiment of the present invention, LCD display module 4 also includes：Broadcast priority switch unit, for according to department
The priority that interface is broadcast in machine instruction to manual air interface, urgent broadcast interface and mouth switches over.
In another embodiment of the present invention, LCD display module 4 also includes intercommunication switch unit, in driver's intercommunication
State switches to driver passenger's intercommunication state after terminating.
In another embodiment of the present invention, LCD display module 4 also includes setting unit of more standing, for receiving signal of more standing
With recover more to stand signal, and be transferred to business function module.
Based on the structure of above-mentioned LCD display module, the system touch-screen supports following functions：
A. broadcast manually is supported.The station platform information that manual air interface is shown must be with platform one in current operation section
Cause.In addition, manual air interface needs to provide " next stop " button, driver only needs to click on, and can report platform successively
Information.Station platform information reads and shown from database completely.
B. urgent broadcast is supported.Urgent broadcast interface needs to show urgent broadcast word, 3 urgent broadcast words of every page of display.
By upper and lower page-turning button, all urgent broadcasts set in PTU softwares are shown.Urgent broadcast interface it is also required to provide urgent wide
Broadcast broadcasting time select button.Urgent broadcast word reads and shown from database completely.
C. mouth is supported to broadcast, 3D5 and OCC.Touch-screen can show the prompting interface of standing state.
D. the request of passenger's alarm is supported.Touch-screen can show passenger's alarm according to passenger's alarm request order
Solicited message.Driver can be selectively turned on or passenger's alarm of hang-up request.
E. driver's intercommunication is supported.
F. broadcast priority switching is supported.Can be according to the Event Priority set in PTU, so as to be adjusted according to priority
Broadcast, urgent broadcast and mouth broadcast the position of button manually.
G. the switching of intercommunication priority is supported.Driver initiates intercommunication request with opposite end driver during passenger's intercommunication.Automatic department
Machine intercommunication, hang up driver passenger's intercommunication.Touch-screen needs to provide switching push button so that exits driver's intercommunication, switches back into driver and multiply
Objective intercommunication.
H. the regulation of monitoring volume, guest room volume, driver's intercommunication volume and driver passenger's intercommunication volume is supported.The tune of volume
Section needs cipher authentication.
I. function of more standing is supported.It can set or recover more to stand.
J. network upgrade function is supported.Network interface updating apparatus firmware can be passed through.
5th, database interface
Database api interface part, using the SQLite3 that increases income.SQLite3 has the characteristics that：Support most SQL
Instruction；Installation database server software is not needed；One db archives (file) is exactly a database；Speed is relatively fast；
One .c file of independently increasing income, directly participate in application layer compiling, there is provided api function calling etc..SQLite3 officials are by all source codes
Bag fusion is in a big file, i.e. sqlite3.c, sqlite.h.They can participate in compiling as common .c files, its
His .c files directly quote the function in sqlite3.c, and SQL statement is converted into string data, it is possible to realize SQL behaviour
Make.
The system uses database technology, mainly " read from database " operation, during initialization, from database file,
To be called out the stops information, configuration information reading internal memory, then according to these information, be called out the stops, configuration system.Database file is located at
In file storage unit, as long as updating the data library file, system software restart or hardware reset after, you can realize business become
More.
Claims (10)
- A kind of 1. digital broadcasting control system applied to train, it is characterised in that including：Real time operation module, realizes embedded real-time operation；Network pack receiving and transmitting processing module, it is connected with the real time operation module, realizes the reception and transmission of network bag；Business function module, the real time operation module and network pack receiving and transmitting processing module is connected respectively, according to the life received Order performs corresponding operating；LCD display module, the real time operation module and business function module are connected respectively, respond the drive of real time operation module It is dynamic, and send operational order bag to business function module；Database interface module, the real time operation module and business function module are connected respectively, realizes the reading of database file Take and write；Exception monitoring module, is connected with business function module, carries out exception monitoring in real time, when having monitored abnormal occur, opens Dynamic exception ignores technology, records the exception.
- 2. the digital broadcasting control system according to claim 1 applied to train, it is characterised in that the real time operation Module includes the trawl performance unit being connected with the network pack receiving and transmitting processing module, the frame being connected with the LCD display module Buffered-display driver unit, the file storage unit being connected with the database interface module and it is connected with the business function module Audio driven unit.
- 3. the digital broadcasting control system according to claim 1 applied to train, it is characterised in that the network bag with Queue form transmission.
- 4. the digital broadcasting control system according to claim 1 applied to train, it is characterised in that the business function Module includes：Command resolution unit, for parsing by the operational order bag of LCD display module transmission and by network pack receiving and transmitting processing module The network bag of transmission；Operation execution unit, for performing corresponding operating, including working condition switching, automatic report according to the order obtained after parsing Stand, call out the stops manually, urgent broadcast, mouth are broadcast, driver is to driver passenger's intercommunication of making peace.
- 5. the digital broadcasting control system according to claim 1 applied to train, it is characterised in that the LCD is shown Module is used to realize the interaction with driver, including：Manual air interface, for receiving the manual broadcasting instructions of driver；Urgent broadcast interface, the urgent broadcast for receiving driver instructs and display urgent broadcast word；Mouth broadcasts interface, and the mouth for receiving driver broadcasts instruction, and shows corresponding condition prompting；Passenger asks interface, for showing passenger's solicited message in order, and receives operation of the driver to passenger's solicited message and refers to Order, including connect passenger's request or hang up passenger's request；Driver's intercommunication interface, for showing the intercommunication solicited message of opposite end driver, and driver is received to the intercommunication solicited message Operational order；Sound volume regulation unit, the volume adjusting for receiving driver instruct；Network upgrade unit, for upgrading the equipment firmware of LCD display module by network interface；Interface updating block, for being updated to multiple interfaces in LCD display module；The manual broadcasting instructions, urgent broadcast instruction, mouth broadcast instruction, operational order and volume adjusting instruction be transmitted to described in Business function module is handled.
- 6. the digital broadcasting control system according to claim 5 applied to train, it is characterised in that the LCD is shown Module also includes：Broadcast priority switch unit, for broadcasting interface to manual air interface, urgent broadcast interface and mouth according to driver instruction Priority switch over.
- 7. the digital broadcasting control system according to claim 5 applied to train, it is characterised in that if the passengers Interface is asked to be in driver passenger's intercommunication state, and when driver's intercommunication interface receives and shows the intercommunication request of opposite end driver, Driver's intercommunication state at driver's intercommunication interface is automatically switched to, hangs up driver passenger's intercommunication state.
- 8. the digital broadcasting control system according to claim 7 applied to train, it is characterised in that the LCD is shown Module also includes：Intercommunication switch unit, for switching to driver passenger's intercommunication state after terminating in driver's intercommunication state.
- 9. the digital broadcasting control system according to claim 5 applied to train, it is characterised in that the volume adjusting Unit includes：Cipher authentication subelement, for realizing cipher authentication in volume adjusting.
- 10. the digital broadcasting control system according to claim 5 applied to train, it is characterised in that the LCD is shown Module also includes：More stand setting unit, more stand signal for receiving and recover signal of more standing, and be transferred to business function module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152947.XA CN107342828B (en) | 2016-12-14 | 2016-12-14 | Digital broadcast control system applied to train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152947.XA CN107342828B (en) | 2016-12-14 | 2016-12-14 | Digital broadcast control system applied to train |
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| Publication Number | Publication Date |
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| CN107342828A true CN107342828A (en) | 2017-11-10 |
| CN107342828B CN107342828B (en) | 2020-07-07 |
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ID=60223153
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611152947.XA Active CN107342828B (en) | 2016-12-14 | 2016-12-14 | Digital broadcast control system applied to train |
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| CN109067491A (en) * | 2018-08-23 | 2018-12-21 | 天津市北海通信技术有限公司 | Broadcasting for train Voice Surveillance method, platform and system |
| CN110138483A (en) * | 2019-05-30 | 2019-08-16 | 中车株洲电力机车有限公司 | A kind of train urgent broadcast entry automatic push method and system |
| CN115440013A (en) * | 2022-08-26 | 2022-12-06 | 深圳市航盛轨道交通电子有限责任公司 | Alarm method, alarm device and rail vehicle alarm system |
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| CN115440013A (en) * | 2022-08-26 | 2022-12-06 | 深圳市航盛轨道交通电子有限责任公司 | Alarm method, alarm device and rail vehicle alarm system |
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| Publication number | Publication date |
|---|---|
| CN107342828B (en) | 2020-07-07 |
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