CN106710520B - LED display screen module control method and device - Google Patents
LED display screen module control method and device Download PDFInfo
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- CN106710520B CN106710520B CN201710037413.0A CN201710037413A CN106710520B CN 106710520 B CN106710520 B CN 106710520B CN 201710037413 A CN201710037413 A CN 201710037413A CN 106710520 B CN106710520 B CN 106710520B
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- module
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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]
Abstract
The invention relates to the technical field of LED display screens, in particular to a control method and a control device for an LED display screen module, wherein whether the module is connected or not is detected, when the module is detected to be connected, a reset signal is sent to the module to reset the module, and correction data stored on the module are read; and generating image data according to the correction data, and sending the image data to the module to enable the module to normally display. The invention can automatically start the detection module to reconnect and issue the image data, thereby improving the maintenance work efficiency of the LED display screen module.
Description
Technical Field
the invention relates to the technical field of LED display screens, in particular to a method and a device for controlling an LED display screen module.
Background
With the technological progress, the application occasions of the LED display screen are more and more popularized, and the LED display screen has very high requirements on the display effect and the field maintenance speed for high-end application occasions (such as stadiums, concert fields, television stations and the like). At present, when the LED display screen module is maintained, the module state is generally required to be manually read after the module is plugged or replaced due to module faults under the electrified condition, video image data are issued again, the module can normally display, the operation is relatively complex, the time is long, and the maintenance work efficiency of the LED display screen module is low.
Disclosure of Invention
the invention aims to provide a method and a device for controlling an LED display screen module, and aims to solve the problem that the maintenance work efficiency of the LED display screen module is low in the prior art.
The invention provides a control method of an LED display screen module, which comprises the following steps:
When the connection module is detected, sending a reset signal to the module to reset the module;
reading the correction data stored on the module;
And generating image data according to the correction data, and sending the image data to the module to enable the module to normally display.
the second aspect of the present invention provides a LED display screen module control apparatus, which includes:
The detection unit is used for detecting whether the module is connected or not;
The control unit is used for sending a reset signal to the module to reset the module when the detection unit detects that the module is connected;
A reading unit for reading the correction data stored on the module;
And the control unit is also used for generating image data according to the correction data and sending the image data to the module so as to enable the module to normally display.
according to the invention, whether a module is connected or not is detected, when the module is detected to be connected, a reset signal is sent to the module to reset the module, and correction data stored on the module is read; and generating image data according to the correction data, and sending the image data to the module to enable the module to normally display, so that the maintenance working efficiency of the LED display screen module is improved.
drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a method for controlling an LED display screen module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a LED display screen module control device according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the description of the invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In order to improve the maintenance work efficiency of the LED display screen module, the embodiment of the invention provides a method and a device for controlling the LED display screen module, which are detailed as follows:
The first embodiment is as follows:
Fig. 1 shows an implementation flow of a method for providing a control of an LED display screen module according to an embodiment of the present invention, and for convenience of description, only the relevant parts of the embodiment are shown, which are detailed as follows:
in step S101, when a connected module is detected, a reset signal is sent to the module to reset the module.
In an embodiment of the present invention, detecting a connection module includes: acquiring the level change of the detection signal, determining whether the module is connected according to the level change of the signal, and preferably, determining that the module is connected when the level is detected to be from high to low.
Particularly, when the module in the LED display screen needs to be maintained, the module is disassembled to be maintained, the module is connected after maintenance is completed, when the level of the detection signal is detected to be low level, the module is judged to be connected, a reset signal is sent to the module, and the module is driven to reset, so that the display effect of the reconnected module and the display effect of the whole display screen are consistent, and the phenomenon of screen splash does not occur.
it should be noted that sending a reset signal to the module to reset the module may also be sending a reset signal to a plurality of modules on the same LED display screen to reset the plurality of modules. The reset signal is sent to a plurality of modules, and a plurality of modules are driven to reset simultaneously, so that the display effect of the whole display screen is consistent, and the phenomenon of screen splash does not occur.
Optionally, when detecting that the module is connected, sending a reset signal to the module to reset the module includes: and when the connection module is detected, sending a reset signal to the scanning card to reset the scanning card.
Specifically, when a module in the LED display screen needs to be maintained, the module is detached for maintenance, the module is connected after maintenance is completed, when the level of the detection signal is detected to be low level, the module is judged to be connected, and a reset signal is sent to the scanning card, so that the scanning card is reset under the electrified condition, and a plurality of modules carried by the scanning card are started. And then, a reset signal is sent to the module loaded by the scanning card to drive each module to reset, so that the display effect of the reconnected module and the whole display screen is consistent, and the phenomenon of screen splash does not occur.
In step S102, correction data stored on the module is read.
It should be noted that the correction data is used to improve the brightness uniformity and color fidelity of the LED display. Generally, the correction of the LED display screen is performed by collecting luminance (and chrominance) data of each pixel (or each primary color sub-pixel) area on the LED display screen, providing a correction coefficient of each primary color sub-pixel or a correction coefficient matrix of each pixel, and feeding the correction coefficient matrix back to a control system of the display screen, where the control system applies the correction coefficient to implement differential driving of each pixel (or each primary color sub-pixel), so that the picture of the LED display screen is pure and fine, and the color is really restored.
in the embodiment of the invention, the correction data comprises brightness and chrominance data, coordinate data, backup data and the like of each module, wherein the coordinate data is used for inquiring the position of each module on the display screen, and the brightness and chrominance data is used for lighting the modules. When the LED display screen is maintained subsequently, if the module is replaced or the LED display screen is plugged again due to poor contact of the module, the correction data stored in the module needs to be read so as to obtain the latest correction data of the module, and the problem of data updating after the module is replaced is solved.
In step S103, image data is generated according to the correction data, and the image data is sent to the module, so that the module displays normally.
Specifically, after the reconnection module or modules are reset, the correction data stored on the reconnection module is read, the correction data including coordinate data, image data, and the like, the correction data of the module is read back, stored, new image data is generated based on the correction data, and the image data is sent to the module, so that the module displays normally.
Further, the control method of the LED display screen module further comprises the following steps: and when the level of the detection signal is detected to be high level, determining that the module is pulled out.
specifically, when detecting when the module is extracted, will the display data of extracting the module sends to a plurality of modules of same LED display screen, will the demonstration image that extracts the module shift to a plurality of modules for the display image evenly distributed.
The embodiment of the invention detects whether a module is connected or not, and when the connected module is detected, a reset signal is sent to the module to reset the module and read the correction data stored on the module; and generating image data according to the correction data, and sending the image data to the module to enable the module to normally display, so that the maintenance working efficiency of the LED display screen module is improved.
Example two:
An embodiment of the present invention provides an LED display screen module control device 20, as shown in fig. 2, the LED display screen module control device 20 includes a detection unit 201, a control unit 202, and a reading unit 203.
further, the detecting unit 201 is used for detecting whether a module is connected.
In an embodiment of the present invention, detecting a connection module includes: acquiring the level change of the detection signal, determining whether the module is connected according to the level change of the signal, and preferably, determining that the module is connected when the level is detected to be from high to low.
further, the control unit 202 is configured to send a reset signal to the module to reset the module when the detection unit detects that the module is connected.
Particularly, when the module in the LED display screen needs to be maintained, the module is disassembled to be maintained, the module is connected after maintenance is completed, when the level of the detection signal is detected to be low level, the module is judged to be connected, a reset signal is sent to the module, and the module is driven to reset, so that the display effect of the reconnected module and the display effect of the whole display screen are consistent, and the phenomenon of screen splash does not occur.
It should be noted that sending a reset signal to the module to reset the module may also be sending a reset signal to a plurality of modules on the same LED display screen to reset the plurality of modules. The reset signal is sent to a plurality of modules, and a plurality of modules are driven to reset simultaneously, so that the display effect of the whole display screen is consistent, and the phenomenon of screen splash does not occur.
Optionally, the control unit 202 is further configured to, when the detection unit detects that the module is connected, send a reset signal to the module to reset the module, where the method includes: and sending a reset signal to the scanning card to reset the scanning card.
Specifically, when a module in the LED display screen needs to be maintained, the module is detached for maintenance, the module is connected after maintenance is completed, when the level of the detection signal is detected to be low level, the module is judged to be connected, and a reset signal is sent to the scanning card, so that the scanning card is reset under the electrified condition, and a plurality of modules carried by the scanning card are started. Then the control unit 202 sends a reset signal to the modules carried by the scanning card to drive each module to reset, so that the display effect of the reconnected modules and the whole display screen is consistent, and the phenomenon of screen blooming does not occur.
Further, a reading unit 203 is used for reading the correction data stored on the module.
It should be noted that the correction data is used to improve the brightness uniformity and color fidelity of the LED display. Generally, the correction of the LED display screen is performed by collecting luminance (and chrominance) data of each pixel (or each primary color sub-pixel) area on the LED display screen, providing a correction coefficient of each primary color sub-pixel or a correction coefficient matrix of each pixel, and feeding the correction coefficient matrix back to a control system of the display screen, where the control system applies the correction coefficient to implement differential driving of each pixel (or each primary color sub-pixel), so that the picture of the LED display screen is pure and fine, and the color is really restored.
In the embodiment of the invention, the correction data comprises brightness and chrominance data, coordinate data, backup data and the like of each module, wherein the coordinate data is used for inquiring the position of each module on the display screen, and the brightness and chrominance data is used for lighting the modules. When the LED display screen is maintained subsequently, if the module is replaced or the LED display screen is plugged again due to poor contact of the module, the correction data stored in the module needs to be read so as to obtain the latest correction data of the module, and the problem of data updating after the module is replaced is solved.
Further, the control unit 202 is further configured to generate image data according to the correction data, and send the image data to the module, so that the module displays normally.
Specifically, after the reconnection module or modules are reset, the correction data stored on the reconnection module is read, the correction data including coordinate data, image data, and the like, the correction data of the module is read back, stored, new image data is generated based on the correction data, and the image data is sent to the module, so that the module displays normally.
further, the control method of the LED display screen module further comprises the following steps: and when the level of the detection signal is detected to be high level, determining that the module is pulled out.
Specifically, when detecting when the module is extracted, will the display data of extracting the module sends to a plurality of modules of same LED display screen, will the demonstration image that extracts the module shift to a plurality of modules for the display image evenly distributed.
The LED display screen module control device provided by the embodiment of the invention detects whether the module is connected or not, when the connection module is detected, a reset signal is sent to the module to reset the module, and correction data stored on the module is read; and generating image data according to the correction data, and sending the image data to the module to enable the module to normally display, so that the maintenance working efficiency of the LED display screen module is improved.
while the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A control method of an LED display screen module is characterized by comprising the following steps:
When the connection module is detected, sending a reset signal to the module to reset the module; the method comprises the following steps that a reset signal is sent to a plurality of modules on the same LED display screen, so that the modules are reset simultaneously;
Reading the correction data stored on the module; the correction data comprises brightness and chrominance data, coordinate data and backup data of the module;
Generating image data according to the correction data, and sending the image data to the module to enable the module to normally display;
When the module is detected to be pulled out, the display data of the module are sent to the modules of the same LED display screen, and the display images of the modules are shifted to the modules, so that the display images are uniformly distributed.
2. The method of claim 1, wherein the detecting a connected module comprises:
and acquiring the level change of the detection signal, and determining that the module is connected when the level is detected to be changed from high to low.
3. the method of claim 2, wherein the control method further comprises:
And when the level of the detection signal is detected to be high level, determining that the module is pulled out.
4. The LED display screen module control device is characterized by comprising a detection unit, a control unit and a reading unit:
The detection unit detects whether the module is connected or not;
When the detection unit detects that the module is connected, the control unit sends a reset signal to the module to reset the module; the control unit is also used for sending a reset signal to a plurality of modules on the same LED display screen to simultaneously reset the modules;
The reading unit reads the correction data stored on the module; the correction data comprises brightness and chrominance data, coordinate data and backup data of the module;
the control unit generates image data according to the correction data and sends the image data to the module to enable the module to normally display;
When the module is detected to be pulled out, the display data of the module are sent to the modules of the same LED display screen, and the display images of the modules are shifted to the modules, so that the display images are uniformly distributed.
5. The apparatus of claim 4, wherein the detection unit obtains a level change of the detection signal, and determines that the module is connected when the level change is detected from high to low.
6. The apparatus according to claim 5, wherein the detection unit determines that the module is unplugged when detecting that the level of the detection signal is a high level.
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| CN201710037413.0A CN106710520B (en) | 2017-01-19 | 2017-01-19 | LED display screen module control method and device |
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| CN201710037413.0A CN106710520B (en) | 2017-01-19 | 2017-01-19 | LED display screen module control method and device |
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| CN101630469A (en) * | 2009-08-07 | 2010-01-20 | 北京巨数数字技术开发有限公司 | LED display screen |
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| CN201994039U (en) * | 2010-11-03 | 2011-09-28 | 深圳市洲明科技股份有限公司 | System for compensating image distortion of LED (Light-Emitting Diode) display screen |
| CN102810295A (en) * | 2012-08-10 | 2012-12-05 | 深圳市易事达电子有限公司 | Intelligent led display screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201185074Y (en) * | 2007-09-24 | 2009-01-21 | 杭州士兰微电子股份有限公司 | System for correcting LED dot array screen parameter |
| CN203490926U (en) * | 2013-09-26 | 2014-03-19 | 南京德普达电子技术有限公司 | LED display screen module capable of storing correction data |
| US9582237B2 (en) * | 2013-12-31 | 2017-02-28 | Ultravision Technologies, Llc | Modular display panels with different pitches |
| CN204516320U (en) * | 2015-02-12 | 2015-07-29 | 郑先贵 | A kind of LED display module with memory function |
| CN105913797B (en) * | 2016-06-16 | 2018-11-06 | 深圳市艾比森光电股份有限公司 | A kind of LED display module correction data automatic loading method and system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101630469A (en) * | 2009-08-07 | 2010-01-20 | 北京巨数数字技术开发有限公司 | LED display screen |
| CN102097046A (en) * | 2009-12-09 | 2011-06-15 | 京东方科技集团股份有限公司 | Picture adjustment method, device and system |
| CN201994039U (en) * | 2010-11-03 | 2011-09-28 | 深圳市洲明科技股份有限公司 | System for compensating image distortion of LED (Light-Emitting Diode) display screen |
| CN102810295A (en) * | 2012-08-10 | 2012-12-05 | 深圳市易事达电子有限公司 | Intelligent led display screen |
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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. |