CN105761667A - LED intelligent glass video control method - Google Patents
LED intelligent glass video control method Download PDFInfo
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- CN105761667A CN105761667A CN201610119428.7A CN201610119428A CN105761667A CN 105761667 A CN105761667 A CN 105761667A CN 201610119428 A CN201610119428 A CN 201610119428A CN 105761667 A CN105761667 A CN 105761667A
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- led
- dot matrix
- video
- control unit
- video control
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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]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The invention provides an LED intelligent glass video control method, and the method comprises the steps that an upper computer employs LED dot matrix map editing software to formulate an LED dot matrix map and a code corresponding to the LED dot matrix map according to the arrangement position of onsite LED intelligent glass; the upper computer enables the LED dot matrix map code to be transmitted to an MCU video control unit; the MCU video control unit receives and stores the LED dot matrix map code; the MCU video control unit receives and stores video stream data; and the MCU video control unit transmits an order video signal to a drive unit according to the LED dot matrix map code and the video stream data. According to the invention, the method achieves the normal play of a high-definition video with no other operation through employing the upper computer to modify an LED arrangement map when the connection position of the LED intelligent glass is changed, and improves the construction efficiency.
Description
Technical field
The present embodiments relate to LED and control technical field, particularly relate to LED intelligent glass video control method.
Background technology
LED display has preeminent performance: 1) luminosity is strong, in visual range during direct sunlight screen surface, the display content high-visible .LED super gray-scale Control of display screen has 1024-4096 level gray-scale Control, more than Show Color 16.7M, clear color is true to nature, and third dimension is strong；2) static scanning technology, adopts static latch scan mode, high-power driving, fully ensures that luminosity；3) ABC has automatic brightness adjusting function, can obtain best result of broadcast under different lightness environment；4) adopting import large scale integrated circuit, reliability is greatly improved, it is simple to debugging maintenance comprehensively；5) advanced digitized video processes, and technical point cloth scans, and BSV liquid crystal-spliced technology high definition show, modularized design/constant current static drive, automatic brightness adjustment, super bright pure color pixel, image frame clearly, non-jitter and ghost image, stop distortion.The various information such as video, animation, chart, word, picture show, display of networking, remotely control.Thus becoming the one display electronic mass media instrument that present society commonly uses.
But present control method is more complicated, the dot matrix mode of hinting obliquely at is fixed.Implementing comparatively laborious with installation, during construction and installation, the cabling of LED screen is fixed, and brings certain difficulty to construction.
Summary of the invention
The embodiment of the present invention provides a kind of LED intelligent glass video control method, to overcome above-mentioned technical problem, solves LED intelligent glass video control field and installs the problems such as complicated.
LED intelligent glass video control method of the present invention, including:
Host computer adopts LED dot matrix layout viewing software for editing to formulate LED dot matrix layout viewing and coding corresponding to described LED dot matrix layout viewing according to on-the-spot LED intelligent glass arrangement position, and described coding includes: the serial number of the LED DISPLAY ORDER on the corresponding port numbers of output driver, the glass blocks sequence number of LED intelligent glass and described glass blocks；
Described LED dot matrix layout viewing coding is sent to MCU video control unit by described host computer；
Described MCU video control unit receives and stores described LED dot matrix layout viewing coding；
Described MCU video control unit receives and stores video stream data；
Described MCU video control unit encodes according to described LED dot matrix layout viewing, described video stream data sends the video signal after whole sequence to driver element.
Further, described MCU video control unit encodes according to described LED dot matrix layout viewing, described video stream data sends the video signal after whole sequence to driver element, including:
MCU video control unit corresponding port numbers of output driver in encoding according to LED dot matrix layout viewing, the glass blocks sequence number of LED intelligent glass, LED DISPLAY ORDER serial number determine the reading address of video stream data；
Described MCU video control unit reads the video flowing after whole sequence according to described reading address；
Described MCU video control unit by the video stream after described whole sequence to driver element so that described drive unit drives LED intelligent glass shows.
Present invention achieves when the connection of LED intelligent glass changes, or due to cause specific connection mode fixing time.Host computer amendment LED layout viewing can be passed through and just can realize the function of normal play HD video, it is not necessary to other nuisance operation, it is achieved that the intellectuality of LED control and convenience, improve the efficiency of construction.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is LED intelligent glass video control method flow chart of the present invention；
Fig. 2 is LED intelligent glass layout viewing schematic diagram of the present invention；
Fig. 3 is that LED intelligent glass video of the present invention controls cascade block diagram representation；
Fig. 4 is LED intelligent glass Video Image Segmentation block diagram representation of the present invention；
Fig. 5 is the video image dot chart schematic diagram of 16x24 pixel of the present invention；
Fig. 6 is the glass ordering chart schematic diagram of 8x8 dot matrix glass display 16x24 pixel of the present invention；
Fig. 7 is the dot matrix distributing order schematic diagram of 8x8 dot matrix glass of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Fig. 1 is LED intelligent glass video control method flow chart of the present invention, as it is shown in figure 1, the method for the present embodiment may include that
Step 101, host computer adopt LED dot matrix layout viewing software for editing to formulate LED dot matrix layout viewing and coding corresponding to described LED dot matrix layout viewing according to on-the-spot LED intelligent glass arrangement position, and described coding includes: the serial number of the LED DISPLAY ORDER on the corresponding port numbers of output driver, the glass blocks sequence number of LED intelligent glass and described glass blocks；
Described LED dot matrix layout viewing coding is sent to MCU video control unit by step 102, described host computer；
Step 103, described MCU video control unit receive and store described LED dot matrix layout viewing coding；
Step 104, described MCU video control unit receive and store video stream data；
Step 105, described MCU video control unit encode according to described LED dot matrix layout viewing, described video stream data sends the video signal after whole sequence to driver element.
Further, described MCU video control unit encodes according to described LED dot matrix layout viewing, described video stream data sends the video signal after whole sequence to driver element, including:
MCU video control unit corresponding port numbers of output driver in encoding according to LED dot matrix layout viewing, the glass blocks sequence number of LED intelligent glass, LED DISPLAY ORDER serial number determine the reading address of video stream data；
Described MCU video control unit reads the video flowing after whole sequence according to described reading address；
Described MCU video control unit by the video stream after described whole sequence to driver element so that described drive unit drives LED intelligent glass shows.
Specifically, large-scale LED intelligent glass display screen is divided into some pieces, and each piece of upper corresponding multiple LED show point, by assembled for polylith as a whole display screen during in-site installation.The present embodiment adopts LED dot matrix layout viewing software for editing edit out LED dot matrix layout viewing according to the input of driver blade below every piece of display screen in the scene assembled LED intelligent glass screen completed, output identification and be encoded by host computer, and each point in LED layout viewing represents each the display point in LED intelligent glass.As in figure 2 it is shown, each RJ45 output port that the port numbers of the corresponding output driver in LED layout viewing is corresponding second processor output.In the present embodiment, the second processor is FPGA.The glass blocks sequence number of LED intelligent glass represents the every piece of corresponding LED intelligent glass in LED intelligent glass.LED DISPLAY ORDER on glass blocks represents in every piece of LED intelligent glass and shows serial number a little.LED dot matrix layout viewing only just need to be downloaded when MCU first time starts, and exists afterwards in the FLASH memory in MCU, if the position of LED intelligent glass does not change and avoids the need for re-downloading LED dot matrix layout viewing and encode.
nullThis LED dot matrix layout viewing coding is downloaded in MCU by host computer by USB serial ports，MCU receives, by DVI interface, the video requency frame data that host computer sends，During storage stores to outside，Then，MCU exports the video requency frame data universal serial bus being read out according to the order of LED layout viewing in the driving of LED intelligent glass，As shown in Figure 6，The address of first point of the NO.0 in PORT0 is 00000_00000_000000,First point in corresponding diagram 5，The address of the 2nd point of the NO.0 in PORT0 is 00000_00000_000001,First point in corresponding diagram 5，The address of first point in the NO.1 in PORT0 is 00000_00001_000000,The address of last point of the NO.2 in PORT1 is 00001_00010_111111，By that analogy.Drive finally by intelligent glass and light LED intelligent glass.
When the pixel of video is more than counting that single MCU video control unit shows, it is necessary to the multiple MCU video control unit of cascade.If the display point of the LED intelligent glass of peripheral hardware is more than the size of 1024*768 (SRAM) memory element, the switch 2 of the LED intelligent glass display area in the FPGA module opened in cascade in second MCU, then second MCU of cascade will then the information of the frame of video of first MCU storage continue to store, and completes the data storage of whole frame.First processor in MCU video control unit controls the same with the control principle of first MCU, and in the present embodiment, first processor is ARM chip, other amendments that it goes without doing, it is achieved that the compatibility of whole system.If, the LED intelligent glass that show count more than 2 MCU video control units, it is possible to continue cascade according to method above, until completing the display of complete video.As shown in Figure 3.
As shown in Figure 4, for cascade Video segmentation block diagram time.Video is transferred in MCU by DVI interface, and wherein, video frame images is divided into n region, and 1 to region, region n is respectively outputted in MCU1 to MCUn.Correspondence n PORT mouth of each MCU, each PORT mouth controls multiple LED intelligent glass modules, and each LED intelligent glass module includes multiple LED intelligent glass.Video Image Segmentation becomes n region, and each MCU controls a region, and the video data in corresponding region carries out processing and carrying out serial data output by n external output port in MCU, is transferred in driver to carry out the display of LED video.
Illustrate, as it is shown in figure 5, for the video image vegetarian refreshments of 16x24, corresponding 384 pixels of frame of video.Video requency frame data stores in the external SRAM of FPGA, as shown in Figure 6, for the LED layout viewing (being the arrangement situation of LED) that Fig. 5 video image vegetarian refreshments is corresponding.In 1～64 some correspondence video of the NO.0 in PORT0 1～8,25～32,49～56,73～80,97～104,121～128,145～152,169～176；In the corresponding video in 1～64 of NO.1 in PORT0 9～16,33～40,57～64,81～88,105～112,129～136,153～160,177～184；In the corresponding video in 1～64 of NO.2 in PORT0 17～24,41～48,65～72,89～96,113～120,137～142,161～168,185～192；In the corresponding video in 1～64 of NO.0 in PORT1 193～200,217～224,241～248,265～272,289～296,313～320,337～344,361～368；In the corresponding video in 1～64 of NO.1 in PORT1 201～208,225～232,249～256,273～280,297～304,321～328,345～352,369～376；In PORT1 in NO.2 correspondence video 209～216,233～240,257～264,281～288,305～312,329～336,353～360,377～384；The scan mode of dot matrix can oneself define: the order in each NO. unit glass arbitrarily defines.
As it is shown in fig. 7, for the dot matrix precedence diagram that 8x8 is example, only arranged 4 examples in figure, dot matrix order is not limited to this.LED location inputs, locus, puts in order and adapts to any free arrangement of LED, adapts to the convenience of technique and installation.
Present invention achieves when the connection of LED intelligent glass changes, or due to cause specific connection mode fixing time.Host computer amendment LED layout viewing can be passed through and just can realize the function of normal play HD video, it is not necessary to other nuisance operation, it is achieved that the intellectuality of LED control and convenience, improve the efficiency of construction.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (2)
1. a LED intelligent glass video control method, it is characterised in that including:
Host computer adopts LED dot matrix layout viewing software for editing to formulate LED dot matrix layout viewing and coding corresponding to described LED dot matrix layout viewing according to on-the-spot LED intelligent glass arrangement position editor, and described coding includes: the serial number of the LED DISPLAY ORDER on the corresponding port numbers of output driver, the glass blocks sequence number of LED intelligent glass and described glass blocks；
Described LED dot matrix layout viewing coding is sent to MCU video control unit by described host computer；
Described MCU video control unit receives and stores described LED dot matrix layout viewing coding；
Described MCU video control unit receives and stores video stream data；
Described MCU video control unit encodes according to described LED dot matrix layout viewing, described video stream data sends the video signal after whole sequence to driver element.
2. method according to claim 1, it is characterised in that described MCU video control unit encodes according to described LED dot matrix layout viewing, described video stream data sends the video signal after whole sequence to driver element, including:
MCU video control unit corresponding port numbers of output driver in encoding according to LED dot matrix layout viewing, the glass blocks sequence number of LED intelligent glass, LED DISPLAY ORDER serial number determine the reading address of video stream data；
Described MCU video control unit reads the video flowing after whole sequence according to described reading address；
Described MCU video control unit by the video stream after described whole sequence to driver element so that described drive unit drives LED intelligent glass shows.
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| CN201610119428.7A CN105761667B (en) | 2016-03-02 | 2016-03-02 | LED intelligent glass video control methods |
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| CN201610119428.7A CN105761667B (en) | 2016-03-02 | 2016-03-02 | LED intelligent glass video control methods |
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Cited By (3)
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| CN110517626A (en) * | 2019-07-16 | 2019-11-29 | 上海景吾智能科技有限公司 | A kind of method and device improving LED display image refresh rate |
| CN112967666A (en) * | 2021-02-24 | 2021-06-15 | 南京磊积科技有限公司 | LED display screen control device and control method capable of realizing random pixel arrangement |
| CN114927110A (en) * | 2022-06-27 | 2022-08-19 | 青岛信芯微电子科技股份有限公司 | Backlight control method, display device, chip system and medium |
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| CN112967666B (en) * | 2021-02-24 | 2022-07-15 | 南京磊积科技有限公司 | LED display screen control device and control method capable of realizing random pixel arrangement |
| CN114927110A (en) * | 2022-06-27 | 2022-08-19 | 青岛信芯微电子科技股份有限公司 | Backlight control method, display device, chip system and medium |
| CN114927110B (en) * | 2022-06-27 | 2024-03-15 | 青岛信芯微电子科技股份有限公司 | Backlight control method, display equipment, chip system and medium |
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| CN105761667B (en) | 2018-05-08 |
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