CN104299564B - A kind of LED display fault self- recoverage control system - Google Patents
A kind of LED display fault self- recoverage control system Download PDFInfo
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Abstract
The invention discloses a kind of LED display fault self- recoverage control system, this control system is by being divided into two independent memory blocks by memory element, one of memory block is used for storing the data of the current program run of LED display and display, another memory block is used for storing stand-by program, when LED display current operation program fault or renewal, automatically switch to another memory block and run stand-by program, and video data is stored, this control system automatic switching program, do not need to change receiving card after whole LED display power-off, do not affect the normal work of LED display, solving in prior art LED display control system can not online updating when program updates, and can not self-healing problem when program or data fault.
Description
Technical field
The invention belongs to LED display control field is and in particular to a kind of LED display fault self- recoverage control system.
Background technology
During the high speed development of current Modern Information based Society, large screen display is from business such as public information displays
Industry is applied to consumer multimedia application infiltration.With the development of broadband network, digitized content of multimedia will be in information generation
Main flow is occupied, new large-screen display equipment enjoys information and content of multimedia by replacing conventional television to become people in boundary
Center.
LED display control system (LED Display Control System), also known as LED display controller, LED
Display screen control card.It is the core component of composition LED display, is mainly responsible for receiving connecing from computer serial port or DVI
The picture of mouth and video display information, insert frame memory, generate, by type of drive, the series display that LED display can identify
Data and scan control sequential.
LED display control system is broadly divided into asynchronous control system and synchronous control system.
Asynchronous control system, also known as LED display off line control system or off line card, is mainly used to show various words, symbol
Number and figure or animation based on, picture display information, by Computerized Editing, is pre-filled with LED through RS232/485 serial port and shows
The frame memory of screen, then plays by screen display, moves in circles, display mode is rich and varied, change is various.Its main feature
It is：Simple to operate, cheap, range is wider.The simple asynchronous control system of LED display may only display digit when
Clock, word, spcial character.LED display picture and text asynchronous control system in addition to the function with Simple Control System, maximum spy
Point is can be with subregion control display screen curtain content.Support that simulation clock display, countdown, picture, form and animation show.Tool
There are the functions such as timed power on/off, temperature control, humid control.
LED display synchronous control system, is mainly used to show video, picture and text, notice etc. in real time.Be mainly used in interior or
Outdoor full color big screen display screen.LED display synchronous control system controls the working method of LED display to be essentially identical to electricity
The monitor of brain, it accordingly maps the image on computer monitor in real time with least 60 frames/second renewal rate point point, generally has
There are the color display capabilities of many gray scales, can reach multimedia exploitation effect.It is mainly characterized by：Real-time, representability
Abundant, operation is complex, price is high.A set of LED display synchronous control system is typically shown by sending card, receiving card and DVI
Card composition.
Control card species on display screen is a lot, and the company producing now control card is also a lot, for example clever star rain, middle celebrating
Deng, also have some do the manufacturer of LED display also research and develop the control system of oneself, for example, Leah moral photoelectricity share has
The patent of invention of limit company application, Application No.：201410214066.0, the applying date is：On May 20th, 2014, denomination of invention
For LED display control system, a kind of LED display control system of this disclosure of the invention, this LED display control system bag
Include：Driving plate, is provided with USB interface, and described driving plate is used for receiving the first video signal by described USB interface, and by institute
State the first video signal and be converted to the second video signal；And LED drive circuit, with described driving plate and described LED display
It is connected, for driving described LED display to show the corresponding video content of described second video signal.By the present invention, solve
The problem of the signal transmission narrower bandwidth of LED display control system in prior art of having determined, has reached raising LED display control
The effect of the signal transmission bandwidth of system processed.But, this LED display control system is only done from increase signal transmission bandwidth
Improve, if the error of work process Program or corrupt data can only be solved by restarting or changing receiving card,
Affect the work of whole LED display.
The patent of invention of Xi'an Novastar Electronic Technology Co., Ltd.'s application, Application No.：201310446064.x, the applying date
For：On September 26th, 2013, invention entitled LED display control system, a kind of LED display screen system of this disclosure of the invention, its
Including LED display control card, LED lamp panel string and end termination module, wherein, LED lamp panel string includes a LED lamp panel electricity
Connect to LED display control card or multiple LED lamp panel and level is coupled to LED display control card, to receive LED display control
The data of fabrication output and control signal.End termination module electrically connects the most end one-level LED lamp panel in LED lamp panel string, so that
Must be by the return data signal of most end one-level LED lamp panel output sequentially via described end termination module and described LED lamp panel
String is sent to described LED display control card.The present invention passes through to form data back route segment in LED lamp panel, therefore need not
Extra setting monitor board builds the fault detect that loop can complete each LED lamp panel to LED display, so then can letter
Change line and there is relatively low cost.This invention only improves from fault detect direction, but is merely able to detect fault, and
Not to produce fault propose effective solution, if this control system breaks down, can only by change receiving card
Solve problem, the system with Leah moral company is the same, can affect the application of display screen during replacing.
Content of the invention
The technical problem to be solved is：A kind of LED display fault self- recoverage control system is provided, solves
In prior art LED display control system when program updates can not online updating, and when program or data fault not
Being capable of self-healing problem.
The present invention is to solve above-mentioned technical problem to employ the following technical solutions：
A kind of LED display fault self- recoverage control system, including sending card, receiving card, signal distributor, Video processing
Device, host computer, video signal is sent and is processed to video processor by described host computer, video processor will process after regard
Frequency signal sends to sending card, and sending card is sent after video signal packing compression compressed package to reception by signal distributor
Card, receiving card carries out image procossing by after the compressed package receiving decompression, then sends the video signal after processing and shows to LED
Shown in display screen, described receiving card includes processor, address signal interfaces, control signal interface, data signal interfaces, volume
Journey interface, described processor includes data processing unit, data storage cell, DCU data control unit, described data storage cell
For storing the video data of LED display, DCU data control unit is used for the described sending card of control data processing unit reception and sends out
The control signal sent, address signal, data signal, described data storage cell includes memory block one, memory block two, described storage
Area one and memory block two all include program storage area, data storage area, and the data storage area storage LED display of memory block one is worked as
The data message of front display, the program storage area of described memory block one stores the program information of work at present, described memory block two
Data storage area as inactive data memory block, the program storage area storage stand-by program information of memory block two, work as memory block
When one program information breaks down, produce failure identification, when the program information of memory block one needs to be updated, produce more
New logo, data processing unit automatically switches to memory block two according to failure identification or more new logo, runs in memory block two
Stand-by program, meanwhile, the data message that LED display is shown is stored in memory block two.
Also include relief area one, relief area two, wherein relief area one is used for the data message currently displaying to LED display
Or the caching of program information, relief area two is used for LED display data message when stand-by program information or stand-by program work
Caching.
Also include depositor group one, depositor group two, wherein depositor group one is used for depositing the ground of LED display receiving card
Location information, depositor group two is used for depositing the backup address information of LED display receiving card.
Described processor is one of fpga chip, ARM chip, dsp chip.
Described fpga chip is one of Spartan-6 family chip of Xilinx company.
Described fpga chip is XC6SLX16.
The operation principle of this control system is as follows：
By memory element is divided into two independent memory blocks, one of memory block is used for storing this control system
The current program run of LED display and the data of display, another memory block is used for storing stand-by program, works as LED display
When current operation program fault or renewal, produce failure identification or more new logo, data processing unit is according to failure identification
Or more new logo automatically switches to another memory block and runs stand-by program, and video data is deposited in another memory block
Storage, user can update the program code of former memory block as needed, and this control system automatic switching program is it is not necessary to incite somebody to action whole
Change receiving card after LED display power-off, do not affect the normal work of LED display.
Compared with prior art, the invention has the advantages that：
1st, memory element is divided into independent two memory area by this system, respectively storage running program and stand-by program,
When operation program breaks down or needs to update, system can automatically switch to stand-by program and run, and do not affect LED display
Normal improve the utilization rate of LED display using it is not necessary to cut off the power supply of whole LED display, saved LED and shown
The maintenance cost of display screen.
2nd, two data buffer zones are adopted, during download program or data transfer, by program information data
Information enters row cache, it is to avoid clock occur error or inconsistent in the case of, packet congestion causes frame losing phenomenon so that program
Or the transmission accuracy rate of data is high, LED display video data is complete, undistorted.
3rd, two groups of depositors store the address information of LED display receiving cards so that the data that sends of sending card or control
Signal accurately can transmit to receiving card according to receiving card address, enhances accuracy rate and the reliability of communication.
4th, Spartan-6 family chip has the optimum balance of low-risk, low cost and low-power consumption, with earlier generations device phase
Than, not only lower power consumption 42%, performance raising simultaneously 12%.Spartan-6 family chip disclosure satisfy that LED display to data
Transmission speed and the requirement of precision, reduce the cost of whole LED display meanwhile.
Brief description
Fig. 1 is the system architecture diagram of the present invention.
Fig. 2 is the reference clock oscillogram of XC6SLX16 chip of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the structure and work process of the present invention is described further.
As shown in figure 1, a kind of LED display fault self- recoverage control system, including sending card, receiving card, signal distribution
Device, video processor, host computer, video signal is sent and is processed to video processor by described host computer, video processor
Video signal after processing is sent to sending card, sending card will be compressed after video signal packing compression by signal distributor
Bag sends to receiving card, and receiving card carries out image procossing by after the compressed package receiving decompression, the video letter after then processing
Number send and to be shown to LED display, described receiving card includes processor, address signal interfaces, control signal interface, number
According to signaling interface, DLL, described processor includes data processing unit, data storage cell, DCU data control unit, described
Data storage cell is used for storing the video data of LED display, and DCU data control unit is used for control data processing unit and receives
The control signal of described sending card transmission, address signal, data signal, described data storage cell includes memory block one, storage
Area two, described memory block one and memory block two all include program storage area, data storage area, and the data storage area of memory block one is deposited
The currently displaying data message of storage LED display, the program storage area of described memory block one stores the program information of work at present,
The data storage area of described memory block two is as inactive data memory block, the program storage area storage stand-by program letter of memory block two
Breath, when the program information of memory block one breaks down, produces failure identification, when the program information of memory block one needs to carry out more
When new, produce more new logo, data processing unit automatically switches to memory block two according to failure identification or more new logo, and operation is deposited
Stand-by program in storage area two, meanwhile, the data message that LED display is shown is stored in memory block two.
Also include relief area one, relief area two, wherein relief area one is used for the data message currently displaying to LED display
Or the caching of program information, relief area two is used for LED display data message when stand-by program information or stand-by program work
Caching.
Also include depositor group one, depositor group two, wherein depositor group one is used for depositing the ground of LED display receiving card
Location information, depositor group two is used for depositing the backup address information of LED display receiving card.
Described processor is one of fpga chip, ARM chip, dsp chip.
The present embodiment adopts the XC6SLX16 chip in the Spartan-6 family chip of Xilinx company as main process task
Device, the clock waveform of XC6SLX16 chip with reference to figure as shown in Fig. 2 wherein TFCLK be the reference clock trailing edge time, TRCLK
For reference clock rising time, its rising time and all collections of trailing edge time be waveforms amplitude 20%～80% it
Between.
Series not only has leading system integration ability, also enables to be applied to high-volume simultaneously
The minimum totle drilling cost of application.This series is by 13 member compositions, it is possible to provide density from 3840 logical blocks to 147443
Logical block.Compared with previous generation Spartan series, this serial power consumption be only its 50%, and speed faster, linkage function
More rich comprehensive.Spartan-6 series is manufactured using ripe 45nm low-power consumption copper wiring technology it is achieved that cost performance and power consumption
Perfectly balanced, using the teaching of the invention it is possible to provide it is a series of abundant interior that brand-new and more efficient pair register 6 inputs look-up table (LUT) logical sum
Put system-level blocks, including 18Kb (2x 9Kb) Block RAM, second filial generation DSP48A1 Slice, SDRAM memory control
Device processed, enhancement mode mixed model Clock management module, SelectIOTMTechnology, the high speed serialization transceiver module of power optimization,
PCICompatible endpoint module, AS level power supply management mode, automatic detection config option, and pass through AES
The enhanced ip safety realized with Device DNA defencive function.These excellent specific properties are with unprecedented ease for use for customization
ASIC product provides the programmable replacement scheme of low cost.Spartan-6 FPGA can be for high-volume logical design, to consume
Class is the DSP design of guiding and cost-sensitive Embedded Application provides best solution.Spartan-6 FPGA establishes
Solid programmable chip basis, is highly suitable for providing the target design platform of integrated software and hardware assembly, so that design
Personnel can focus on energy on innovation work at the beginning of development startup.
Each chip characteristics such as following table of Spartan-6 FPGA series,
As can be known from the above table：
1.Spartan-6 FPGA logic cell grading fully demonstrated up-to-date 6 input LUT frameworks possess more powerful
Logical block ability.
2. each Spartan-6 FPGA Slice all comprises 4 LUT and 8 triggers.
3. each DSP48A1 Slice includes a 18x18 multiplier, an adder and an accumulator.
4.Block RAM size is essentially 18Kb.Each module is also used as two independent 9Kb modules and uses.
5. each CMT includes two DCM and PLL.
6. do not support Memory Controller module under -3N speed step.
Technical staff can be suitable for the concrete model of project according to the selection that needs being related to input.
The operation principle that LED display fault self- recoverage control system program information of the present invention downloads storage is as follows：
First, determine communication protocol, according to the storage regional address of FPGA, be divided into two independent regions, writing
Sending card program code in, different datagram headers are added according to communication protocol, program passes through DLL general after compiling
In program write FPGA, and deposit respectively as in memory block one and memory block two according to different headers, start sending card, automatically
Run the program information in memory block one, control the work of LED display, when the program information of memory block one breaks down,
Produce failure identification, when the program information of memory block one needs to be updated, produce more new logo, data processing unit according to
Failure identification or more new logo automatically switch to memory block two, run the stand-by program in memory block two, LED are shown meanwhile
The data message of screen display is stored in memory block two.
This system is during more new procedures or when breaking down, can automatic switching program, there is fault
Self-recovering function, does not affect the normal of LED display and uses it is not necessary to cut off the power supply of whole LED display, improve LED
The utilization rate of display screen, has saved the maintenance cost of LED display.
Claims (6)
1. a kind of LED display fault self- recoverage control system, including sending card, receiving card, signal distributor, Video processing
Device, host computer, video signal is sent and is processed to video processor by described host computer, video processor will process after regard
Frequency signal sends to sending card, and sending card is sent after video signal packing compression compressed package to reception by signal distributor
Card, receiving card carries out image procossing by after the compressed package receiving decompression, then sends the video signal after processing and shows to LED
Shown in display screen, described receiving card includes processor, address signal interfaces, control signal interface, data signal interfaces, volume
Journey interface, described processor includes data processing unit, data storage cell, DCU data control unit, described data storage cell
For storing the video data of LED display, DCU data control unit is used for the described sending card of control data processing unit reception and sends out
The control signal sent, address signal, data signal it is characterised in that：Described data storage cell includes memory block one, memory block
Two, described memory block one and memory block two all include program storage area, data storage area, the data storage area storage of memory block one
The currently displaying data message of LED display, the program storage area of described memory block one stores the program information of work at present, institute
The data storage area stating memory block two is as inactive data memory block, the program storage area storage stand-by program letter of memory block two
Breath, when the program information of memory block one breaks down, produces failure identification, when the program information of memory block one needs to carry out more
When new, produce more new logo, data processing unit automatically switches to memory block two according to failure identification or more new logo, and operation is deposited
Stand-by program in storage area two, meanwhile, the data message that LED display is shown is stored in memory block two.
2. LED display fault self- recoverage control system according to claim 1 it is characterised in that：Also include relief area
First, relief area two, wherein relief area one are used for the caching of the data message currently displaying to LED display or program information, delay
Rush area two for the caching of LED display data message when stand-by program information or stand-by program work.
3. LED display fault self- recoverage control system according to claim 1 it is characterised in that：Also include depositor
Group one, depositor group two, wherein depositor group one are used for depositing the address information of LED display receiving card, depositor group dual-purpose
In the backup address information depositing LED display receiving card.
4. LED display fault self- recoverage control system according to any one of claim 1 to 3 it is characterised in that：Institute
Stating processor is one of fpga chip, ARM chip, dsp chip.
5. LED display fault self- recoverage control system according to claim 4 it is characterised in that：Described fpga chip
One of Spartan-6 family chip for Xilinx company.
6. LED display fault self- recoverage control system according to claim 5 it is characterised in that：Described fpga chip
For XC6SLX16.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104952392A (en) * | 2015-06-30 | 2015-09-30 | 韩光泉 | Data backup and fault prevention system for LED display screen |
| CN104992666A (en) * | 2015-06-30 | 2015-10-21 | 苏州合欣美电子科技有限公司 | LED display screen anti-fault system |
| CN105243987A (en) * | 2015-07-31 | 2016-01-13 | 苏州南光电子科技有限公司 | LED display screen control system |
| CN105023540A (en) * | 2015-07-31 | 2015-11-04 | 苏州宏展信息科技有限公司 | Data transmission method of LED display screen control system |
| CN105301349A (en) * | 2015-09-22 | 2016-02-03 | 深圳市科陆电子科技股份有限公司 | Electric energy meter power outage display processing method |
| CN107117033B (en) * | 2017-04-28 | 2020-03-06 | 北京新能源汽车股份有限公司 | Information display control method and device, instrument controller and electric automobile |
| CN111833799B (en) * | 2019-04-15 | 2022-04-05 | 杭州海康威视数字技术股份有限公司 | LED receiving assembly and receiving card switching method |
| CN113035153B (en) * | 2019-12-06 | 2022-11-18 | 西安诺瓦星云科技股份有限公司 | Display screen information maintenance method, device and system |
| CN112885296B (en) * | 2021-03-10 | 2022-05-03 | 浙江大华技术股份有限公司 | Method and device for acquiring fault information, storage medium and electronic device |
| CN113411658B (en) * | 2021-06-17 | 2022-07-05 | 杭州海康威视数字技术股份有限公司 | Display device |
| CN116594813A (en) * | 2023-05-26 | 2023-08-15 | 江苏泽景汽车电子股份有限公司 | System restarting method and device, head-up display device and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6489937B1 (en) * | 1999-11-15 | 2002-12-03 | 3Com Corporation | LED matrix control system with Field Programmable Gate Arrays |
| KR20090109323A (en) * | 2008-04-15 | 2009-10-20 | 문철홍 | Emotion lighting system using led control device |
| KR100944944B1 (en) * | 2009-06-23 | 2010-03-02 | 주식회사 룩스원 | System and method of controlling led on led board |
| CN101656041A (en) * | 2009-08-28 | 2010-02-24 | 西安诺瓦电子科技有限公司 | LED screen control system featuring diplonema redundancy fault-tolerance and application method thereof |
| CN102157141B (en) * | 2010-08-09 | 2013-09-11 | 深圳市大象视界科技有限公司 | LED large screen display control system and method |
| CN203733445U (en) * | 2014-03-06 | 2014-07-23 | 北京泽视科技有限公司 | Large screen detection and display device |
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Inventor after: Wen Qi Inventor before: Hu Guoliang |
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Effective date of registration: 20170120 Address after: 266121 Shandong City, Qingdao Province, Jun Feng Road, Licang District No. 30 Applicant after: QINGDAO HAIYAN ELECTRONIC CO., LTD. Address before: Taishan road Suzhou City, Jiangsu province 215299 Suzhou high tech Industrial Development Zone No. 2 Canton Technology Park 10 building 324 Applicant before: Suzhou HeXinMei Electronic Technology Co., Ltd. |
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Denomination of invention: LED display screen fault self-recovery control system Effective date of registration: 20180412 Granted publication date: 20170308 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: QINGDAO HAIYAN ELECTRONIC CO., LTD. Registration number: 2018370010026 |
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Date of cancellation: 20190422 Granted publication date: 20170308 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: QINGDAO HAIYAN ELECTRONIC CO., LTD. Registration number: 2018370010026 |
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Denomination of invention: LED display screen fault self-recovery control system Effective date of registration: 20190507 Granted publication date: 20170308 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: QINGDAO HAIYAN ELECTRONIC CO., LTD. Registration number: 2019990000396 |
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Date of cancellation: 20200428 Granted publication date: 20170308 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: QINGDAO HAIYAN ELECTRONICS Co.,Ltd. Registration number: 2019990000396 |
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