CN106448550A - LED screen parameter automatic identifying method and device - Google Patents
LED screen parameter automatic identifying method and device Download PDFInfo
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- CN106448550A CN106448550A CN201611227207.8A CN201611227207A CN106448550A CN 106448550 A CN106448550 A CN 106448550A CN 201611227207 A CN201611227207 A CN 201611227207A CN 106448550 A CN106448550 A CN 106448550A
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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 El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention relates to an LED screen parameter automatic identifying method. The method comprises the following steps: setting a read-back signal, a locking signal and a clock signal at each screen control card driving interface; acquiring codes of parallel/serial data conversion chips of screen modules by virtue of the read-back signals, the locking signals and the clock signals; and acquiring parameters of the screen modules. The modules are connected in series by virtue of the read-back signals, the quantity of the modules is judged by judging quantity of effective codes, and further lateral resolution of a screen is obtained. The read-back signal, the clock signal and the locking signal are configured on each driving interface. Longitudinal resolution of the screen is obtained by judging the quantity of effective read-back signal interfaces. By adopting the method provided by the invention, the modules can be prevented from being damaged by human in a debugging process; project debugging flow is simplified, and working efficiency is improved; and technical threshold of LED entire screen debugging is greatly lowered.
Description
Technical field
The present invention relates to LED screen field, particularly to a kind of LED screen parameter automatic identifying method and device.
Background technology
LED screen (LED panel)：LED is exactly light emitting diode, the english abbreviation of light emitting diode,
Abbreviation LED.It is a kind of display mode by controlling semiconductor light-emitting-diode, and its general appearance is exactly by much individual logical
It is often red, green, blue trichroism lampet composition, the light on and off by lamp to show.It is used for showing word, figure, image, animation, market, regarding
Frequently, the display giant-screen of the various information such as video signal.The screen resolution of present LED screen, the parameter of display module are
By being manually configured, this requires that operator need to have the Professional knowledge of correlation, and setting up procedure is numerous and diverse.
Content of the invention
For this reason, the present invention provides a kind of engineering that simplifies to debug flow process, improve the LED screen parameter automatic identification of work efficiency
Method.
For achieving the above object, inventor provide a kind of LED screen parameter automatic identifying method, including：
Screen control card driving interface arranges read back waveform；
Screen control other signals of card driving interface are as locking signal and clock signal；
Coding that is screen module and turning serial core piece is obtained by read back waveform, locking signal and clock signal；
Obtain the parameter of screen module according to coding.
Optimize further, described parameter includes screen lateral resolution and screen longitudinal resolution.
Optimize further, the mode that described screen lateral resolution is identified by data signal series connection obtains.
Optimize further, described screen lateral resolution identification is specially：
Screen control card to and turn serial core piece send locking signal, and persistently export serial clock signal；
Stop when judging 8 data all 0 reading or as 1；
Calculate the number of output clock signal, obtain the number connecting and turning serial core piece；
Obtain screen lateral resolution.
Optimize further, described screen longitudinal resolution identification is specially：
It is furnished with read back waveform in each driving interface of screen control card；
Screen control card judges the interface quantity of effective read back waveform；
Obtain screen longitudinal resolution.
Inventor additionally provides a kind of LED screen parameter automatic identification equipment, including：
Signal input module, for reading the returned data of module；
Locking and clock module, with other signals of driving interface as locking signal and clock signal；
Coding acquisition module, for by read back waveform, locking signal and clock signal obtain screen module and turn go here and there
The coding of chip；
Parameter acquisition module, for obtaining the parameter of screen module according to coding.
Optimize further, described parameter includes screen lateral resolution and screen longitudinal resolution.
Optimize further, also include screen lateral resolution identification module, described screen lateral resolution identification module is used
Screen lateral resolution is obtained by data signal by way of connecting.
Optimize further, described screen lateral resolution identification module is specially：For screen control card to and turn serial core
Piece sends locking signal, and persistently exports serial clock signal；Stop when judging read 8 data all 0 or as 1
Only；Calculate the number of output clock signal, obtain the number connecting and turning serial core piece；Obtain screen lateral resolution.
Optimize further, also include screen longitudinal resolution acquisition module, described screen longitudinal resolution acquisition module is used
Clock, locking, read back waveform are furnished with each driving interface of screen control card；Screen control card judges effective read back waveform
Interface quantity；Obtain screen longitudinal resolution.
It is different from prior art, read back waveform series connection between technique scheme module, by judging the number of efficient coding
Measure and to judge module number, and then obtain the lateral resolution of screen.Above-mentioned read back waveform is configured in each driving interface,
Clock and locking signal.By judging the interface quantity of effective read back waveform, obtain the longitudinal resolution of screen.Using this skill
Art can prevent from, in debugging process, artificially causing module to damage；Simplify engineering debugging flow process, improve work efficiency；Significantly
Reduce the technical threshold of LED whole screen debugging.
Brief description
Fig. 1 is a kind of schematic flow sheet of LED screen parameter automatic identifying method described in specific embodiment；
Fig. 2 is described in specific embodiment and to turn a kind of serial core piece 74HC165 parameter schematic diagram of identification；
Fig. 3 is a kind of structural representation of LED screen parameter automatic identification equipment described in specific embodiment.
Specific embodiment
By the technology contents of detailed description technical scheme, structural features, realized purpose and effect, below in conjunction with concrete reality
Apply example and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, a kind of the present embodiment LED screen parameter automatic identifying method, including：
Step S110：Screen control card driving interface setting read back waveform, locking signal and clock signal；
Step S120：Volume that is screen module and turning serial core piece is obtained by read back waveform, locking signal and clock signal
Code；
Step S130：Obtain the parameter of screen module according to coding.
Export on the interface of screen module in original control card, a road signal therein be arranged to transmitted in both directions or
Person adds a road read back waveform, by the use of other signals on original interface as locking signal and clock signal, by this three tunnel
Input coding that is on signal acquisition screen module and turning serial core piece, thus obtain the supplemental characteristic of screen module according to coding.
Prevent in debugging process, artificially cause module to damage；Simplify engineering debugging flow process, improve work efficiency；LED is greatly lowered
The technical threshold of whole screen debugging.
In the present embodiment, described parameter includes module parameter, screen lateral resolution and screen longitudinal resolution.Determine
How much information is shown on screen, to be weighed with horizontal and vertical pixel, be i.e. screen lateral resolution and screen longitudinal resolution.
Refer to Fig. 2, by and as a example turning serial core piece 74HC165, described screen lateral resolution is identified by data signal
The mode of series connection obtains.Described screen lateral resolution identification is specially：Screen control card to and turn serial core piece 74HC165 send
Locking signal, and persistently export serial clock signal；Stop when judging 8 data all 0 reading or as 1；Meter
Calculate the number of output clock signal, obtain the number connecting and turning serial core piece 74HC165；Obtain screen lateral resolution.Described
The identification of screen longitudinal resolution is specially：It is furnished with read back waveform in each driving interface of screen control card；Screen control card is sentenced
The interface quantity of disconnected useful signal stream；Obtain screen longitudinal resolution.Back read data signal series connection between former and later two modules, leads to
Cross module coding input and turn in serial core piece 74HC165, from screen control card to and turn incoming serial serial core piece 74HC165
Clock signal and locking signal, and pass through signal driver from a upper module to next module input locking signal and string
Row clock signal；From and turn serial core piece 74HC165 and read coded data, export in screen control card, thus it is horizontal to calculate screen
Longitudinal resolution to resolution and screen.Automatic identification screen resolution and screen module parameter, method is simple, effectively prevents
The module artificially causing in debugging process damages, and simplifies engineering debugging flow process and improves work efficiency, LED is greatly lowered whole
The technical threshold of screen debugging.
Refer to Fig. 3, in another embodiment, a kind of LED screen parameter automatic identification equipment, including：
Signal input module 310, for screen control card driving interface setting read back waveform, locking signal and clock letter
Number；
Coding acquisition module 320, for by read back waveform, locking signal and clock signal obtain screen module and turn
The coding of serial core piece；
Parameter acquisition module 330, for obtaining the parameter of screen module according to coding.
In the present embodiment, described parameter includes module parameter, screen lateral resolution and screen longitudinal resolution.
In the present embodiment, screen lateral resolution identification module, described screen lateral resolution identification module are also included
For obtaining screen lateral resolution by data signal by way of connecting.Described screen lateral resolution identification module is concrete
For：For screen control card to and turn serial core piece send locking signal, and persistently export serial clock signal；When judgement reads
8 data all 0 or for 1 when stop；Calculate the number of output clock signal, obtain and connect and turn the individual of serial core piece
Number；Obtain screen lateral resolution.Also include screen longitudinal resolution acquisition module, described screen longitudinal resolution acquisition module
It is furnished with read back waveform in each driving interface of screen control card；Screen control card judges the number of ports of useful signal stream
Amount；Obtain screen longitudinal resolution.
On the interface that original control card exports module, a road signal therein is arranged to transmitted in both directions or adds
Plus a road read back waveform, by the use of other signals on original interface as locking signal and clock signal, by this three roads signal
Obtain input coding that is on screen module and turning serial core piece, thus obtain the supplemental characteristic of screen module according to coding.Prevent
In debugging process, module is artificially caused to damage；Simplify engineering debugging flow process, improve work efficiency；LED whole screen is greatly lowered
The technical threshold of debugging.
Although being described to the various embodiments described above, those skilled in the art once know basic wound
The property made concept, then can make other change and modification to these embodiments, so the foregoing is only embodiments of the invention,
Not thereby the equivalent structure that the scope of patent protection of the restriction present invention, every utilization description of the invention and accompanying drawing content are made
Or equivalent flow conversion, or directly or indirectly it is used in other related technical fields, all include the patent in the present invention in the same manner
Within protection domain.
Claims (10)
1. a kind of LED screen parameter automatic identifying method is it is characterised in that include：
Screen control card driving interface setting read back waveform, locking signal and clock signal；
Coding that is screen module and turning serial core piece is obtained by read back waveform, locking signal and clock signal；
Obtain the parameter of screen module according to coding.
2. according to claim 1 LED screen parameter automatic identifying method it is characterised in that described parameter include module ginseng
Number, screen lateral resolution and screen longitudinal resolution.
3. according to claim 2 LED screen parameter automatic identifying method it is characterised in that described screen lateral resolution
The mode being identified by data signal series connection obtains.
4. according to claim 3 LED screen parameter automatic identifying method it is characterised in that described screen lateral resolution
Identification is specially：
Screen control card to and turn serial core piece send locking signal, and persistently export serial clock signal；
Stop when judging 8 data all 0 reading or as 1；
Calculate the number of output clock signal, obtain the number connecting and turning serial core piece；
By number of chips and module gain of parameter screen lateral resolution.
5. according to claim 2 LED screen parameter automatic identifying method it is characterised in that described screen longitudinal resolution
Identification is specially：
Screen control card passes through to judge effective read back waveform quantity thus obtaining the quantity of longitudinal module；
Obtain screen longitudinal resolution.
6. a kind of LED screen parameter automatic identification equipment is it is characterised in that include：
Signal input module, for screen control card driving interface setting read back waveform, locking signal and clock signal；
Coding acquisition module, for by read back waveform, locking signal and clock signal obtain screen module and turn serial core piece
Coding；
Parameter acquisition module, obtains the parameter of screen module for the coding according to received by multichannel driving interface.
7. according to claim 6 LED screen parameter automatic identification equipment it is characterised in that described parameter include module ginseng
Number, screen lateral resolution and screen longitudinal resolution.
8. LED screen parameter automatic identification equipment is laterally differentiated it is characterised in that also including screen according to claim 7
Rate identification module, described screen lateral resolution identification module laterally divides for obtaining screen by way of data signal is connected
Resolution.
9. according to claim 8 LED screen parameter automatic identification equipment it is characterised in that described screen lateral resolution
Identification module is specially：For screen control card to and turn serial core piece send locking signal, and persistently export serial clock signal；
Stop when judging 8 data all 0 reading or as 1；Calculate the number of output clock signal, obtain and connect and turn
The number of serial core piece；Obtain screen lateral resolution.
10. according to claim 7 LED screen parameter automatic identification equipment it is characterised in that also including screen longitudinal resolution
Rate acquisition module, described screen longitudinal resolution acquisition module judges effective read back waveform quantity thus obtaining for screen control card
Obtain the quantity of longitudinal module；Obtain screen longitudinal resolution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227207.8A CN106448550B (en) | 2016-12-27 | 2016-12-27 | Automatic identification method and device for LED screen parameters |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611227207.8A CN106448550B (en) | 2016-12-27 | 2016-12-27 | Automatic identification method and device for LED screen parameters |
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| CN106448550A true CN106448550A (en) | 2017-02-22 |
| CN106448550B CN106448550B (en) | 2020-01-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109584783A (en) * | 2018-10-31 | 2019-04-05 | 北京凯视达科技有限公司 | Unit board parameter configuring method, device, medium and display screen control system |
| CN110599949A (en) * | 2019-09-20 | 2019-12-20 | 深圳市洲明科技股份有限公司 | LED box body and system card and display module thereof |
| CN110827749A (en) * | 2019-12-12 | 2020-02-21 | 苏州飞控软件科技有限公司 | Data read-back control system of LED display screen |
| CN111028719A (en) * | 2019-12-30 | 2020-04-17 | 深圳市洲明科技股份有限公司 | Lamp panel connecting plate and LED display screen |
| CN111128070A (en) * | 2020-01-16 | 2020-05-08 | 上海仰邦科技股份有限公司 | Method and system for obtaining resolution of LED dot matrix display screen |
| CN112802427A (en) * | 2021-04-14 | 2021-05-14 | 杭州视芯科技有限公司 | LED drive circuit, LED display system and display control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109584783A (en) * | 2018-10-31 | 2019-04-05 | 北京凯视达科技有限公司 | Unit board parameter configuring method, device, medium and display screen control system |
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| CN110599949A (en) * | 2019-09-20 | 2019-12-20 | 深圳市洲明科技股份有限公司 | LED box body and system card and display module thereof |
| CN110827749A (en) * | 2019-12-12 | 2020-02-21 | 苏州飞控软件科技有限公司 | Data read-back control system of LED display screen |
| CN111028719A (en) * | 2019-12-30 | 2020-04-17 | 深圳市洲明科技股份有限公司 | Lamp panel connecting plate and LED display screen |
| CN111128070A (en) * | 2020-01-16 | 2020-05-08 | 上海仰邦科技股份有限公司 | Method and system for obtaining resolution of LED dot matrix display screen |
| CN112802427A (en) * | 2021-04-14 | 2021-05-14 | 杭州视芯科技有限公司 | LED drive circuit, LED display system and display control method |
| CN112802427B (en) * | 2021-04-14 | 2021-08-03 | 杭州视芯科技有限公司 | LED drive circuit, LED display system and display control method |
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