CN102411900A - LED (Light-Emitting Diode) display screen and automatic parameter configuration method thereof - Google Patents
LED (Light-Emitting Diode) display screen and automatic parameter configuration method thereof Download PDFInfo
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Abstract
The invention discloses an LED (Light-Emitting Diode) display screen and an automatic parameter configuration method thereof. The LED display screen comprises a data return line which is connected between the tail end of a column data shift transmission module and a processor module. The automatic parameter configuration method sequentially comprises the following four steps of preparation, data sending and receiving, calculation and parameter configuration, wherein the data sending and receiving refers to that the processor module sends test data and starts to count simultaneously and a counting value X is stored until all the test data are received; the calculation refers to calculating the length of the display screen according to the X; the parameter configuration refers to automatically configuring parameters of the display screen according to the length of the display screen. According to the LED display screen which adopts the automatic parameter configuration method of the LED display screen in the invention, the length of the LED display screen is automatically identified on the premise of only slightly changing hardware configuration without interferences of people and equipment so that the parameters are automatically configured, thereby reducing production difficulty, simplifying types of storage materials and enhancing the replaceability and the maintainability of the products in the same series.
Description
Technical field
The present invention relates to LED display technique field, be specifically related to the method for a kind of LED display and automatic configuration parameter thereof.
Background technology
At present, middle-size and small-size LED display is widely used in indoor, outdoor occasion, and realization information shows, functions such as signal indication.But the like product of different length or corresponding different programs code perhaps need be provided with by hardware or Software tool; Derive the product type of One's name is legion thus; This has caused product category, the product material, and the product program is in the diversity of producing aspects such as storage, product maintenance; Give production control, product maintenance brings inconvenience.In the face of the problems referred to above, the product on the market does not all solve this drawback now.Still can only pass through labor intensive at present, by some equipment tool, human intervention and the parameter of setting display screen.But present working-yard often not necessarily can provide utility appliance and instrument, therefore inconvenience is arranged more, needs to improve.
Summary of the invention
One of the object of the invention is to provide a kind of LED display, and it is configuration parameter automatically, solve present LED display have numerous models and can not automatically parameter be set and cause inconvenience problem.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of LED display comprises: processor module, character base module, line data scan module, column data shift transport module, the data line of return, and some display modules; Some display module arrays are formed the display dot battle array; Said processor module is connected with said character base module, line data scan module, column data shift transport module respectively, and line data scan module, column data shift transport module are connected with each display module respectively again; The said data line of return is connected between column data shift transport module end and the processor module.
In the optimized technical scheme; Said processor module has: the A pin that is used to export the DATA data-signal; Be used to export the C pin of SCLK data shift clock signal; Be used to export the D pin of SRCLR data dump signal, be used to export the E pin that the SAVE data are preserved signal, be used to receive the B pin of column data shift transport module output data; Said column data shift transport module is made up of some structures submodule identical with electric property, and each said submodule has a plurality of input ports and a plurality of output port; Said input port includes but not limited to data input DATAin port, data shift signal controlling SCLK port, data dump signal SRCLR port and data preservation signal SAVE port; Said output port includes but not limited to data-out port DATAout; The A pin of said processor module is connected with the DATAin port of first submodule; The said data-out port DATAout of each submodule then connects the data-in port DATAin of next submodule, and the output port DATAout of last submodule N is connected with the B pin of processor module through " column data displacement output module " data line of return.The C pin of said processor module, D pin, E pin respectively simultaneously with the corresponding connection of SCLK port, SRCLR port, SAVE port of each submodule.
Two of the object of the invention is to provide the corresponding method that the automatic configuration parameter of a kind of LED display is provided, solve present LED display have numerous models and can not automatically parameter be set and cause inconvenience problem.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
The method of the automatic configuration parameter of a kind of LED display, order comprises the steps:
S1, preparation: the processor die initialization block, the output data clear signal is given column data shift transport module then, detects the reference logic level of initial setting up until processor module B pin, stops the output data clear signal again and keeps;
S2, transmission and receive data: be ready to postprocessor module and under the cooperation of clock sclk, send out a string known fixed logic level sequence and give column data shift transport module and begin counting simultaneously, when processor module is received the logic level sequence, preserve count value X at that time immediately;
S3, calculating: the length of the count value X calculation display screen of preserving according to back;
S4, configuration parameter:, dispose the parameter of display screen automatically according to the length of display screen.
In the optimized technical scheme, said step S2 comprises the steps: in proper order
One of S21, processor module output is different from " step S1 " the initial logic level logic level " AA " and remain unchanged;
The SCLK data shift clock signal of S22, processor module output simulation; And processor module is since 0, data shift clock signal of every output, and count value X just adds up one time; And simultaneously processor detects the B pin and whether receives " AA ", up to detecting " AA " first;
S23, detect first in " AA ", preserve count value X at processor module.
The invention has the beneficial effects as follows:
Adopted the LED display of the automatic configuration parameter method of LED display among the present invention; Only do in Hardware configuration under the prerequisite of very little change; Need not the intervention of personnel or equipment; Realize that the length of LED display discerns automatically, and then realize the automatic configuration of parameter, thereby reduced the production difficulty, simplified the storage material type, strengthened the replaceability and the maintainability of homologous series products.
Description of drawings
Fig. 1 is the schematic block circuit diagram of specific embodiment of the invention LED display.
Embodiment
The objective of the invention is; Only do in Hardware configuration under the prerequisite of very little change; Need not the intervention of personnel or equipment; The length of realization LED display is discerned automatically, and then realizes the automatic configuration of parameter, to reduce the replaceability and the maintainability of production difficulty, simplification storage material type, enhancing homologous series product.In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.
A kind of LED display that this embodiment provides, its circuit theory is as shown in Figure 1, comprising: processor module, character base module, line data scan module, column data shift transport module and some display modules; Some display module arrays are formed the display dot battle array.Said processor module occupy core status, be connected with said character base module, line data scan module, column data shift transport module respectively, and line data scan module, column data shift transport module is connected with each display module respectively again.Wherein, said processor module also is responsible for the outbound data communication, receives and send video data through its communication interface.
After processor module receives video data, earlier video data is carried out analyzing and processing, according to the character base module data of video data extraction needs; Processor module generates corresponding line data and column data according to said character module data then; Last processor module sends to the line data scan module with line data; Simultaneously column data is sent to column data shift transport module; And come together to scan each display module through line data scan module and column data shift transport module, the demonstration of final control character or image.
Existing LED display, especially middle-size and small-size LED display, the column data of processor module output does not finally feed back to processor module.And the columns of column data shift transport module and display module is actually associated.We find that correspondence just can calculate the length of LED display module through the length of column data shift transport module is discerned, and the length of display module in fact just equals the length of display screen.More than it is also understood that into, through the length of column data shift transport module is discerned, correspondence can calculate the number that shows dot matrix lastrow display dot pixel.And the number of delegation's display dot pixel multiply by dot spacing, in fact is exactly the length of display screen.
Therefore, LED display of the present invention increases a data line of return in existing LED display; The said data line of return is connected between column data shift transport module end and the processor module, makes from the column data of processor output, after column data shift transport module; Finally can return processor module; And be used to calculate the length of LED display, finally, LED display is carried out parameter configuration automatically through the length of LED display.
Particularly as shown in Figure 1, processor module is through A pin output DATA data-signal; Through C pin output SCLK data shift clock signal; Through D pin output SRCLR data dump signal; Preserve signal through E pin output SAVE data; Receive the feedback data of column data shift transport module through the B pin.
As shown in Figure 1, column data shift transport module has the plurality of sub module, i.e. submodule 1, submodule 2, submodule 3... submodule N, and each submodule has identical structure and electric attribute.Each submodule has a plurality of input ports and a plurality of output port; Said input port includes but not limited to data input DATAin port, data shift signal controlling SCLK port, data dump signal SRCLR port and data preservation signal SAVE port; Said output port includes but not limited to data-out port DATAout.
The A pin of said processor module is connected with the DATAin port of first submodule; The said data-out port DATAout of each submodule then connects the data-in port DATAin of next submodule; The output port DATAout of last submodule N is connected with the B pin of processor module through the data line of return of " column data displacement output module ".The C pin of said processor module, D pin, E pin respectively simultaneously with the corresponding connection of SCLK port, SRCLR port, SAVE port of each submodule.Other pin of each submodule is irrelevant in the present invention, and this paper no longer details.
The method of the automatic configuration parameter of display screen of this embodiment, order comprises the steps:
S1, preparation.The processor die initialization block, the output data clear signal is given column data shift transport module then, detects the reference logic level of initial setting up until the B of processor module pin, stops the output data clear signal again and keeps.
Particularly, after the processor die initialization block started, processor module was through D pin output SRCLR data dump logic level each submodule to column data shift transport module in the present embodiment.Be D pin output [low level], then the output of 9 data output ports of submodule 1, submodule 2, submodule 3... submodule N is [low level] simultaneously, thereby the B pin detects [low logic level].Subsequently, the D pin stops to export SRCLR data dump logic level, and promptly the D pin is configured to [high level] signal, and remains unchanged.
S2, transmission and reception data: after being ready to; Processor module sends out a string known fixed logic level sequence and gives column data shift transport module and begin counting simultaneously under the cooperation of clock sclk, when processor module is received the logic level sequence, preserve count value X at that time immediately; In fact to be exactly processor module through A pin and C pin cooperate on sequential sends out a string known fixed data and counting, receives fixed data up to the B pin, and preserves count value at that time.This count value deducts the length of fixed data in follow-up step after, accomplish corresponding calculated, thereby just can obtain the length of display screen.
This step particularly comprises the steps: to export a fixed data in this embodiment in proper order
One of S21, processor module output is different from " step S1 " logic level of initial logic level " AA " and remain unchanged;
The SCLK data shift clock signal that S22, processor module are simulated through the output of C pin; And processor module is since 0; Data shift clock signal of every output; The count value X that just adds up one time, and whether processor detects the B pin and receives simultaneously " AA ", up to detecting first " AA "; So, with one 8 serials input, serial and parallel output sub-module specifically: after the SCLK data shift clock signal of C pin output simulation 8 times, the output port DATAout of first submodule---module 1 can output logic level " AA ".Repeat the above-mentioned S22 step, detect logic level " AA " first up to the B pin.
S23, when processor module detects logic level " AA " first, preserve count value X.
S3, calculating.When the B pin detected high level first, processor module was preserved accumulated counts value X, and the length of calculation display screen.We can know through Fig. 1.Corresponding 8 count values of each " 8 " submodule in the defeated module of biographies.Then our number that can calculate submodule in this LED display is X/8.
According to above stated specification: the number that shows dot matrix lastrow display dot pixel is corresponding with the length that biographies are failed module.With this step embodiment is example, 8 of the corresponding delegation of 8 submodule display dot pixels, and then the number of display dot pixel is exactly count value X.
S4, configuration parameter.After processor module is known the length of display screen, accomplish the configuration of display screen parameter automatically.This step belongs to prior art, is not described in detail in this.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a LED display comprises: processor module, character base module, line data scan module, column data shift transport module and some display modules; Some display module array row become to show dot matrix; Said processor module is connected with said character base module, line data scan module, column data shift transport module respectively; And line data scan module, column data shift transport module are connected with each display module respectively again; It is characterized in that; Said LED display also comprises the data line of return, and the said data line of return is connected between column data shift transport module end and the processor module.
2. LED display as claimed in claim 1; It is characterized in that; Said processor module has: be used to export the A pin of DATA data-signal, be used to export the C pin of SCLK data shift clock signal, be used to export the D pin of SRCLR data dump signal; Be used to export the E pin that the SAVE data are preserved signal, be used to receive the B pin of column data shift transport module output data; Said column data shift transport module comprises the submodule that some structures are identical with electric property, and each said submodule has a plurality of input ports and a plurality of output port; Said input port comprises data input DATAin port, data shift signal controlling SCLK port, data dump signal SRCLR port and data preservation signal SAVE port; Said output port comprises data-out port DATAout; The A pin of said processor module is connected with the DATAin port of first submodule; The said data-out port DATAout of each submodule then connects the data-in port DATAin of next submodule, and the output port DATAout of last submodule is connected with the B pin of processor module through the said data line of return.
3. the method for the automatic configuration parameter of LED display is characterized in that, the method for this automatic configuration parameter comprises the steps: in proper order
S1, preparation: the processor die initialization block, the output data clear signal is given column data shift transport module then, detects the reference logic level of initial setting up until processor module B pin, stops the output data clear signal again and keeps;
S2, transmission and receive data: be ready to postprocessor module and under the cooperation of clock sclk, send out a string known fixed logic level sequence and give column data shift transport module and begin counting simultaneously, when processor module is received the logic level sequence, preserve count value X at that time immediately;
S3, calculating: the length of the count value X calculation display screen of preserving according to back;
S4, configuration parameter:, dispose the parameter of display screen automatically according to the length of display screen.
4. the method for the automatic configuration parameter of a kind of LED display as claimed in claim 3 is characterized in that said step S2 comprises the steps: in proper order
One of S21, processor module output is different from " step S1 " the initial logic level logic level " AA " and remain unchanged;
The SCLK data shift clock signal of S22, processor module output simulation; And processor module is since 0, data shift clock signal of every output, and count value X just adds up one time; And simultaneously processor detects the B pin and whether receives " AA ", up to detecting " AA " first;
S23, detect first in " AA ", preserve count value X at processor module.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077679A (en) * | 2013-01-05 | 2013-05-01 | 王知康 | Method for combined large-scale LED (light emitting diode) display screen capable of being automatically configured |
| CN104064120A (en) * | 2014-06-27 | 2014-09-24 | 深圳市奥拓电子股份有限公司 | Method and device of positioning coordinates of LED (Light Emitting Diode) cases as well as LED display screen |
| CN106448550A (en) * | 2016-12-27 | 2017-02-22 | 福州海天微电子科技有限公司 | LED screen parameter automatic identifying method and device |
| 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 |
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| WO2004038685A1 (en) * | 2002-10-24 | 2004-05-06 | Immediad Aps | System for presenting and controlling information on a display device |
| CN101763781A (en) * | 2008-12-24 | 2010-06-30 | 三星电子株式会社 | Display apparatus and control method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004038685A1 (en) * | 2002-10-24 | 2004-05-06 | Immediad Aps | System for presenting and controlling information on a display device |
| CN101763781A (en) * | 2008-12-24 | 2010-06-30 | 三星电子株式会社 | Display apparatus and control method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077679A (en) * | 2013-01-05 | 2013-05-01 | 王知康 | Method for combined large-scale LED (light emitting diode) display screen capable of being automatically configured |
| CN104064120A (en) * | 2014-06-27 | 2014-09-24 | 深圳市奥拓电子股份有限公司 | Method and device of positioning coordinates of LED (Light Emitting Diode) cases as well as LED display screen |
| CN106448550A (en) * | 2016-12-27 | 2017-02-22 | 福州海天微电子科技有限公司 | LED screen parameter automatic identifying method and device |
| 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 |
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Application publication date: 20120411 Assignee: NANJING AOTO ELECTRONICS Co.,Ltd. Assignor: SHENZHEN AOTO ELECTRONICS Co.,Ltd. Contract record no.: 2014320000109 Denomination of invention: LED (Light-Emitting Diode) display screen and automatic parameter configuration method thereof Granted publication date: 20131016 License type: Exclusive License Record date: 20140303 |
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