CN102411900B - 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 LEDdisplay 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 ofthe 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, the functions such as signal designation.But, the like product of different length or corresponding different program codes, perhaps need to arrange by hardware or Software tool, derive thus the product type of One's name is legion, this has caused product category, the product material, and the product program is in the diversity of producing the 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, the parameter of human intervention and set and 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 purpose of the present invention is to provide a kind of LED display, and it can automatic configuration parameter, solves present LED display and has numerous models and can not the Lookup protocol parameter and cause the problem of inconvenience.
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, row data scan module, column data shift transport module, the data line of return, and some display modules; Some display module arrays form and show dot matrix; Described processor module is connected with described character base module, row data scan module, column data shift transport module respectively, and capable data scan module, column data shift transport module are connected with each display module respectively again; The described data line of return is connected between column data shift transport module end and the processor module.
In the preferred technical scheme, described processor module has: the A pin that is used for output DATA data-signal, the C pin that is used for output SCLK data shift clock signal, the D pin that is used for output SRCLR data dump signal, be used for output SAVE data and preserve the E pin of signal, be used for receiving the B pin of column data shift transport module output data; Described column data shift transport module is comprised of some structures submodule identical with electric property, and each described submodule has a plurality of input ports and a plurality of output port; Described input port includes but not limited to data input DATAin port, data shift signal control SCLK port, data dump signal SRCLR port and data preservation signal SAVE port; Described output port includes but not limited to data-out port DATAout; The A pin of described processor module is connected with the DATAin port of first submodule; The described 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 by " column data displacement output module " data line of return.The C pin of described processor module, D pin, E pin respectively simultaneously with the corresponding connection of SCLK port, SRCLR port, SAVE port of each submodule.
Two of purpose of the present invention is to provide the corresponding method that a kind of LED display automatic configuration parameter is provided, and solves present LED display and has numerous models and can not the Lookup protocol parameter and cause the problem of inconvenience.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of method of LED display automatic configuration parameter, order comprises the steps:
S1, preparation: the processor die initialization block, then export the data dump signal to column data shift transport module, until processor module B pin detects the reference logic level of initial setting up, stop again exporting data dump signal and maintenance;
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 to column data shift transport module and begin simultaneously counting, until processor module is preserved count value X at that time when receiving the logic level sequence immediately;
S3, calculating: the length of calculating display screen according to the count value X of back preservation;
S4, configuration parameter: according to the length of display screen, automatically configure the parameter of display screen.
In the preferred technical scheme, described step S2 sequentially comprises the steps:
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, and every output one secondary data shift clock signal just accumulates once count value X, and simultaneous processor detects the B pin and whether receives " AA ", until detect first " AA ";
S23, detect first in " AA " at processor module, preserve count value X.
The invention has the beneficial effects as follows:
Adopted the LED display of LED display automatic configuration parameter method among the present invention, 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 identified automatically, and then realized the automatic configuration of parameter, thereby reduced production difficulty, simplified the storage material type, strengthened 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 identified automatically, and then the automatic configuration of realization parameter, to reduce replaceability and the maintainability of production difficulty, simplification storage material type, enhancing homologous series product.In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.
A kind of LED display that this embodiment provides, its circuit theory comprises as shown in Figure 1: processor module, character base module, row data scan module, column data shift transport module and some display modules; Some display module arrays form and show dot matrix.Described processor module occupy core status, is connected with described character base module, row data scan module, column data shift transport module respectively, and capable data scan module, column data shift transport module is connected with each display module respectively again.Wherein, described processor module also is responsible for the outbound data communication, receives and send the demonstration data by its communication interface.
After processor module receives and shows data, first to showing the data analysis processing, according to the character base module data that show data extraction needs; Then processor module generates corresponding row data and column data according to described character module data; Last processor module will be gone data and be sent to capable data scan module, simultaneously column data is sent to column data shift transport module, and come together to scan each display module, the demonstration of final control character or image by row data scan module and column data shift transport module.
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 by the length of column data shift transport module is identified, and the length of display module in fact just equals the length of display screen.More than it is also understood that into, by the length of column data shift transport module is identified, correspondence can calculate and show that the dot matrix lastrow shows the number of some pixel.And delegation shows that the number of some pixel multiply by dot spacing, in fact is exactly the length of display screen.
Therefore, LED display of the present invention, in existing LED display, increase a data line of return, the described data line of return is connected between column data shift transport module end and the processor module, so that from the column data of processor output, after column data shift transport module, finally can return processor module, and for the length of calculating LED display, finally by the length of LED display, LED display is carried out parameter configuration automatically.
Particularly as shown in Figure 1, processor module is by A pin output DATA data-signal; By C pin output SCLK data shift clock signal; By D pin output SRCLR data dump signal; Preserve signal by E pin output SAVE data; Receive the feedback data of column data shift transport module by the B pin.
As shown in Figure 1, column data shift transport module has some submodules, 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; Described input port includes but not limited to data input DATAin port, data shift signal control SCLK port, data dump signal SRCLR port and data preservation signal SAVE port; Described output port includes but not limited to data-out port DATAout.
The A pin of described processor module is connected with the DATAin port of first submodule; The described 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 by the data line of return of " column data displacement output module ".The C pin of described 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 describes in detail.
The method of the display screen automatic configuration parameter of this embodiment, order comprises the steps:
S1, preparation.Then the processor die initialization block exports the data dump signal to column data shift transport module, until the B pin of processor module detects the reference logic level of initial setting up, stops exporting data dump signal and maintenance again.
Particularly, after the processor die initialization block started, processor module was by 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 namely the D pin is configured to [high level] signal, and remains unchanged.
S2, transmission and receive data: after being ready to, processor module sends out a string known fixed logic level sequence to column data shift transport module and begins simultaneously counting under the cooperation of clock sclk, until processor module is preserved count value X at that time when receiving the logic level sequence immediately; In fact be exactly that processor module sends out a string known fixed data and counting by A pin and C pin in the sequential cooperation, until the B pin receives fixed data, and preservation count value at that time.This count value is finished corresponding calculating deduct the length of fixed data in follow-up step after, thereby just can obtain the length of display screen.
This step particularly sequentially comprises the steps: to export a fixed data in this embodiment
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 by the output of C pin, and processor module is since 0, every output one secondary data shift clock signal, just accumulate once count value X, and whether simultaneous processor detection B pin receives " AA ", until detect first " and AA "; So, with one 8 serial input, serial and parallel output submodule specifically: behind 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, until the B pin detects logic level " AA " first.
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 calculated the length of display screen.We can know by 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: show that the dot matrix lastrow shows that the number of some pixel and the length of the defeated module of biographies are corresponding.Take this step embodiment as example, the corresponding delegation of 8 submodule shows 8 of some pixels, shows that then the number of some pixel is exactly count value X.
S4, configuration parameter.After processor module is known the length of display screen, automatically finish the configuration of display screen parameter.This step belongs to prior art, is not described in detail in this.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a LED display comprises: processor module, character base module, row data scan module, column data shift transport module and some display modules; Some display module arrays form and show dot matrix; Described processor module is connected with described character base module, row data scan module, column data shift transport module respectively, and row data scan module, column data shift transport module are connected with each display module respectively again, it is characterized in that, described LED display also comprises the data line of return, and the described 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, described processor module has: the A pin that is used for output DATA data-signal, the C pin that is used for output SCLK data shift clock signal, the D pin that is used for output SRCLR data dump signal, be used for output SAVE data and preserve the E pin of signal, be used for receiving the B pin of column data shift transport module output data; Described column data shift transport module comprises the submodule that some structures are identical with electric property, and each described submodule has a plurality of input ports and a plurality of output port; Described input port comprises data input DATAin port, data shift signal control SCLK port, data dump signal SRCLR port and data preservation signal SAVE port; Described output port comprises data-out port DATAout; The A pin of described processor module is connected with the DATAin port of first submodule; The described 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 by the described data line of return.
3. the method for a LED display automatic configuration parameter, it realizes the automatic configuration of LED display parameter based on claim 1 or 2 described a kind of LED display, it is characterized in that, the method of this automatic configuration parameter sequentially comprises the steps: S1, preparation: the processor die initialization block, then export the data dump signal to column data shift transport module, until processor module B pin detects the reference logic level of initial setting up, stop again exporting data dump signal and maintenance; 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 to column data shift transport module and begin simultaneously counting, until processor module is preserved count value X at that time when receiving the logic level sequence immediately; S3, calculating: the length of calculating display screen according to the count value X of back preservation; S4, configuration parameter: according to the length of display screen, automatically configure the parameter of display screen.
4. the method for a kind of LED display automatic configuration parameter as claimed in claim 3, it is characterized in that, described step S2 comprises the steps: that sequentially 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, and every output one secondary data shift clock signal just accumulates once count value X, and simultaneous processor detects the B pin and whether receives " AA ", until detect first " AA "; S23, detect first in " AA " at processor module, preserve count value X.
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| 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 |
| CN104064120B (en) * | 2014-06-27 | 2017-01-18 | 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 |
| CN106448550B (en) * | 2016-12-27 | 2020-01-10 | 福州海天微电子科技有限公司 | Automatic identification method and device for LED screen parameters |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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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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| 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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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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Address after: 518000 1805, tower 2, Shenye Jinyuan Building, No.112, Qingshuihe 1st Road, Qingshuihe community, Luohu District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN AOTO ELECTRONICS Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District high tech Industrial Park building T2 A6-B Patentee before: SHENZHEN AOTO ELECTRONICS Co.,Ltd. |
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