CN107293253A - Display control card and its date storage method - Google Patents
Display control card and its date storage method Download PDFInfo
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- CN107293253A CN107293253A CN201710340089.XA CN201710340089A CN107293253A CN 107293253 A CN107293253 A CN 107293253A CN 201710340089 A CN201710340089 A CN 201710340089A CN 107293253 A CN107293253 A CN 107293253A
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- memory
- display control
- correction data
- control card
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the invention discloses a kind of display control card and its date storage method.The date storage method includes：Receive correction data；Receive control command；When judging the control command for the first order, the first memory correction data being both stored on display control card is also stored in the second memory on the display control card；And when judging the control command for the second order, the correction data is stored in one of described first memory and the second memory of the display control card.The embodiment of the present invention overcomes the problem of historical data that LED display exists after reception correction data in the prior art is lost, and data safety backup is ensured, and/or realizes the multi-level application of correction data.
Description
Technical field
The present invention relates to display control technology field, more particularly to a kind of date storage method of display control card and one
Plant display control card.
Background technology
At present, during LED display in actual applications because the irregularities of its individual difference and optical characteristics, and
During production, assembling and splicing, the fineness difference of manual operation can all influence the uniformity of LED display effects.With
The increase of time, the LED display uniformity can be reduced, and when serious the Picture Showing on LED display can be caused to go out a large amount of pits,
Bright dim spot etc. influences the factor of image player effect.
Fig. 1 is refer to, Fig. 1 is correcting scheme schematic diagram of the prior art, LED display control programs and LED pointwises school
The mutual cooperating of positive system.LED display point-to-point correction system obtains correction data, and correction data then is transferred into LED
Display control program, completes the correction of LED display.
In the prior art, using LED display point-to-point correction system, gathered data is transferred to from front end camera and is provided with
The correcting computer of correction software is handled to complete the process of correction data acquisition.Obtain after correction data, pass through control
Correction data is sent to sending card (or controller) by computer, and correction data is transferred to by sending card again to be arranged on LED and show
Display control card on display screen body for example receives card, and correction data is loaded when then display control is stuck in progress image-driven display
Act on after view data and be shown on LED display, reach the purpose and effect of correction, this completes what is entirely corrected
Overall process, i.e. correction data are obtained, transmit and acted on.
Obtained however, display control of the prior art is stuck in after new correction data, old correction data can be override,
Such as correction data when covering is dispatched from the factory.This sample loading mode causes when effect is undesirable after new correction, and LED display is difficult extensive
The multiple state to before correction, and then cause the trimming process of LED display to become complicated.
The content of the invention
Therefore, embodiments of the invention provide a kind of display control card and a kind of data storage side of display control card
Method, solves the technical problem that LED display is difficult the state before returning to correction.
On the one hand there is provided a kind of date storage method of display control card, including：Receive correction data；Receive control
Order；When judging the control command for the first order, the correction data had both been stored in first on display control card
Memory is also stored in the second memory on the display control card；And the control command ought be judged for the second order
When, the correction data is stored in one of described first memory and the second memory of the display control card.
Another further aspect there is provided a kind of display control card, including：Volatile memory, PLD, microcontroller
Device, first memory and second memory；The first memory and second memory connect the microcontroller, for respectively
Store correction data；The volatile memory and the microcontroller connect the PLD, described programmable
Logical device obtains parsing post-equalization data for parsing the correction data received, and parses post-equalization data storage by described
Into the volatile memory；And the microcontroller is used for when the control command for judging to receive is the first order,
Coordinate with the PLD and the parsing post-equalization data in the volatile memory be both stored in described the
One memory is stored in the second memory again；And for when the control command for judging to receive is the second order, and institute
PLD is stated to coordinate parsing post-equalization data deposit first storage in the volatile memory
One of device and the second memory.
One technical scheme of above-mentioned technical proposal has the following advantages that or beneficial effect：There is provided using the embodiment of the present invention
Display control card date storage method, overcome that LED display in the prior art exists after correction data is received goes through
The problem of history loss of data, data safety backup is ensured.
Another technical scheme of above-mentioned technical proposal has the following advantages that or beneficial effect：Carried using the embodiment of the present invention
The display control card of confession, overcomes what the historical data that LED display exists after correction data is received in the prior art was lost
Problem, data safety backup is ensured.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, being used required in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is correcting scheme schematic diagram of the prior art；
Fig. 2 provides a kind of date storage method flow chart of display control card for the embodiment of the present invention；
Fig. 3 is a kind of display control card structural representation provided in an embodiment of the present invention；
Fig. 4 is another display control card structural representation provided in an embodiment of the present invention；
Fig. 5 is another display control card structural representation provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to Fig. 2, a kind of date storage method flow for display control card that Fig. 2 provides for first embodiment of the invention
Figure, this method includes：
Receive correction data；
Receive control command；And
Control command is judged for the first order or the second order, when judging the control command for the first order, by institute
State the second storage that the first memory that correction data had both been stored on display control card is also stored on the display control card
Device；And when judging the control command for the second order, the correction data is stored in described in the display control card
One of first memory and the second memory.
For ease of being more clearly understood that the present embodiment, abovementioned steps are described in detail especially exemplified by specific example below.
Fig. 3 is referred to, Fig. 3 is a kind of structural representation of display control card provided in an embodiment of the present invention.The display control
Fabrication includes volatile memory, PLD, microcontroller, first memory and second memory；Described first
Memory and second memory are all connected with the microcontroller；Can described in the volatile memory and microcontroller connection
Programmed logic device.Further, on the basis of above-described embodiment, display control card is by the correction data in the first order
Control under be both stored in first memory and be also stored in second memory, or be stored in first under the control of the second order
One of memory and second memory.It is specifically as follows：
The PLD of the display control card receives the correction data that aforementioned controllers such as sending card is sent,
Parse the correction data received to obtain parsing post-equalization data, and parsing post-equalization data storage is shown into control to described
In the volatile memory of fabrication；
The microcontroller of the display control card receives the control command sent from sending card and judges that control command is
First order or the second order, if the first order, then coordinate with the PLD and deposit the volatibility
The parsing post-equalization data in reservoir be both stored in first memory or be stored in second memory；If the second order, then
The parsing post-equalization data in the volatile memory be both stored in into first with PLD cooperation to deposit
One of reservoir and second memory.Can be via on artificial triggering host computer as the control command for coming from sending card
Different buttons produce the first order or the second order as the control command and exported to sending card.
In one embodiment that the present invention is provided, the first memory and second memory are same physical store
The Different Logic storage region divided in equipment.
On the basis of above-described embodiment, in the method that the present embodiment is provided, the correction data is stored in first
Before memory and/or second memory, the physical storage device is also logically divided into first memory and the second storage
Device, the first memory includes first position mark (for example, Address1), the address for indicating the first memory
Information；The second memory includes second place mark (for example, Address2), the ground for indicating the second memory
Location information.
Wherein, in the embodiment that the present invention is provided, Fig. 4 is referred to, Fig. 4 provides for first embodiment of the invention
Another display control card structural representation.In the embodiment shown in fig. 4, the volatile memory of display control card is
SDRAM (Synchronous Dynamic Random Access Memory, synchronous DRAM), FPGA
Device is FPGA (Field Programmable Gate Array, field programmable gate array), and microcontroller is MCU
(Microcontroller Unit, micro-control unit), first memory and second memory are same Serial Peripheral Interface (SPI)
The Different Logic storage region divided in flash memory SPI Flash, is marked using Address1 and Address2 as first position respectively
Know and second place mark.
Alternatively, in another embodiment that the present invention is provided, the first memory and second memory may be used also
Think same EEPROM (Electrically Erasable Programmable Read-Only Memory, electric erasable
Programmable read only memory) the middle Different Logic storage region divided.
Further, on the basis of above-described embodiment, the correction data stored in first memory and second memory
It is identical, namely the control command received is the first order, to realize the backup to correction data.
Fig. 5 is refer to, another display control card structural representation that Fig. 5 provides for first embodiment of the invention is originally aobvious
The first memory and second memory for showing control card are respectively independent physical storage device：First SPI Flash (such as Fig. 5
In SPI Flash 1) and the 2nd SPI Flash (SPI Flash 2).
Alternatively, in another embodiment that the present invention is provided, the first memory and second memory may be used also
To be respectively independent physical storage device：First EEPROM and the 2nd EEPROM.
When first memory is identical with the correction data that second memory is stored, realizes display control card institute band and carry
Each lamp plate have the correction data backup region of oneself, then, can under conditions of not influenceing original overall casing to show
Realize different casings lamp plate mutually change without influence display effect, using gained again after finishing original casing only need to it is extensive
The correction data in region is backed up again.
In order to realize the multi-level application of display control card correction data, the present invention also provides another embodiment：First deposits
Reservoir is different with the correction data stored in second memory, to realize that the classification to correction data is stored.First memory and
The correction data stored in second memory is different, specifically, and the correction data of the first memory storage is the display
The first correction data when the display screen that control card band is carried dispatches from the factory, the correction data of the second memory storage is the display
The display screen that control card band is carried carries out the second correction data that straightened up in place is obtained.Straightened up in place herein refers to that display screen dispatches from the factory
Gamma correction afterwards or bright chroma correction.
And specifically storing implementation can be：The first correction data had both been stored under the control of the first order first
First memory is also stored in second memory, and the second correction data is stored in into second memory under the control of the second order afterwards
The first correction data originally stored in second memory with covering；
It so can not just destroy original calibration result and complete debugging correction, data backup is ensured safely.This
Outside, it is to be understood that the correction data of write-in first memory and second memory is also not necessarily limited to school when display screen dispatches from the factory
Correction data or user think the correction data obtained by the satisfied straightened up in place of calibration result.In addition, for above-mentioned
Second order, can be fixed as correction data writing second memory or first memory.
Wherein, in the embodiment that the present invention is provided, after the correction data that display control card obtains sending card transmission,
In order to have calibration result when ensureing and normally using, then display control card needs to save correction data, and ensures
Power-off post-equalization data will not lose, therefore, and the storage that correction data should be stored in power-off post-equalization data and will not lose is situated between
Matter.Above example provide only some alternative storage mediums such as Flash or EEPROM, certainly in specific implementation
During, it is also an option that other storage mediums, the embodiment of the present invention is not limited herein.
In summary, using date storage method provided in an embodiment of the present invention, display control in the prior art is overcome
It is stuck in and receives the problem of historical data existed after correction data is lost, data safety backup is ensured.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the division of unit,
It is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multichannel unit or component can be with
With reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit
Part can be or may not be physical location, you can with positioned at a place, or can also be distributed to multi-channel network
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in an embodied on computer readable and deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are to cause a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the part step of each embodiment method of the invention
Suddenly.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-Only Memory, abbreviation ROM), with
Machine access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can be with store program codes
Medium.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (11)
1. a kind of date storage method of display control card, it is characterised in that including：
Receive correction data；
Receive control command；
When judging the control command for the first order, first deposited what the correction data had both been stored on display control card
Reservoir is also stored in the second memory on the display control card；
When judging the control command for the second order, the correction data is stored in described the of the display control card
One of one memory and the second memory.
2. the method as described in claim 1, it is characterised in that
The PLD of the display control card receives the correction data, parses the correction data received and obtains
To parsing post-equalization data, by the parsing post-equalization data storage into the volatile memory of the display control card；
The microcontroller of the display control card receives the control command, when judging that the control command orders for described first
When, and the PLD coordinate the parsing post-equalization data in the volatile memory be both stored in it is described
First memory is also stored in the second memory；When judging the control command for the described second order, and described compile
Journey logical device coordinates is stored in the first memory and institute by the parsing post-equalization data in the volatile memory
State one of second memory.
3. the method as described in claim 1, it is characterised in that the first memory and second memory are same physics
The Different Logic storage region divided in storage device.
4. method as claimed in claim 3, it is characterised in that methods described also includes：
The physical storage device is logically divided into first memory and second memory, the first memory includes first
Station location marker, the address information for indicating the first memory；The second memory is identified including the second place, is used for
Indicate the address information of the second memory.
5. the method as described in claim 1, it is characterised in that the first memory and second memory are independent physics
Storage device.
6. the method as described in claim any one of 1-5, it is characterised in that the correction data of the first memory storage is
The first correction data when the display screen that the display control cassette tape is carried dispatches from the factory, the correction data of the second memory storage is
The display screen that the display control cassette tape is carried carries out the second correction data that straightened up in place is obtained.
7. a kind of display control card, it is characterised in that including：Volatile memory, PLD, microcontroller,
One memory and second memory；
The first memory and second memory connect the microcontroller, for storing correction data respectively；
The volatile memory and the microcontroller connect the PLD, and the PLD is used
Obtain parsing post-equalization data in the correction data that receives of parsing, and by the parsing post-equalization data storage to described volatile
In property memory；
The microcontroller is used for when the control command for judging to receive is the first order, and the PLD is matched somebody with somebody
Close and the parsing post-equalization data in the volatile memory be not only stored in the first memory but also described second is stored in
Memory；And for the control command for judging to receive as second order when, and the PLD coordinate will
The parsing post-equalization data deposit one of the first memory and the second memory in the volatile memory.
8. display control card as claimed in claim 7, it is characterised in that the first memory and second memory are same
The Different Logic storage region divided in individual physical storage device.
9. display control card as claimed in claim 8, it is characterised in that the first memory is identified including first position,
Address information for indicating the first memory；The second memory is identified including the second place, described for indicating
The address information of second memory.
10. display control card as claimed in claim 7, it is characterised in that the first memory and second memory are only
Vertical physical storage device.
11. the display control card as described in claim any one of 7-10, it is characterised in that the school of the first memory storage
Correction data is the first correction data when the display screen that the display control cassette tape is carried dispatches from the factory, the school of the second memory storage
Correction data is that the display screen that the display control cassette tape is carried carries out the second correction data that straightened up in place is obtained.
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|---|---|---|---|
| CN201710340089.XA CN107293253A (en) | 2017-05-15 | 2017-05-15 | Display control card and its date storage method |
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| CN201710340089.XA CN107293253A (en) | 2017-05-15 | 2017-05-15 | Display control card and its date storage method |
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Application publication date: 20171024 |