CN101441850A - Method and apparatus for collecting display parameter of display screen based on identification pattern sequence - Google Patents
Method and apparatus for collecting display parameter of display screen based on identification pattern sequence Download PDFInfo
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- CN101441850A CN101441850A CNA2008101876173A CN200810187617A CN101441850A CN 101441850 A CN101441850 A CN 101441850A CN A2008101876173 A CNA2008101876173 A CN A2008101876173A CN 200810187617 A CN200810187617 A CN 200810187617A CN 101441850 A CN101441850 A CN 101441850A
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Abstract
The invention relates to a method and a device for acquiring display parameters of a display screen based on a logo pattern sequence. The method comprises: acquiring and identifying images which are displayed by the LED display screen and provided with logo patterns; obtaining information names of the display parameters corresponding to the logo patterns; and acquiring images of display information to be measured, performing analysis and calculation, obtaining brightness and chrominance parameter data of the display information to be measured and naming the brightness and chrominance parameter data. An acquisition computer of the device is connected with a brightness and chrominance parameter acquisition device, and a display control computer is connected with the LED display screen. The acquisition computer and the display control computer do not need any wired or wireless communication, so that the method and the device reduce the requirements of the device on a field environment, improve the work efficiency, improve the practicability of the brightness and chrominance parameter acquisition device of the LED display screen, and can quickly and conveniently realize acquisition of brightness and chrominance parameters of the LED display screen.
Description
Technical field
The present invention relates to a kind of display parameter of display screen acquisition method and device thereof, particularly a kind of display parameter of display screen acquisition method and device thereof based on identification pattern sequence.
Background technology
Existing LED display light tone degree parameter acquisition system comprises light tone degree parameter acquisition equipment, collecting computer, demonstration control computer, LED display.Light tone degree parameter acquisition equipment and collecting computer are positioned at the place ahead of LED display, are usually located at LED display optimal viewing position.Collecting computer carries out the data acquisition of the light tone degree parameter of LED display by image data line traffic control light tone degree parameter acquisition equipment, shows that control computer sends the video data of light tone degree information to be measured to LED display by the screen data transmission line.Generally carry out message exchange between collecting computer and the demonstration control computer by wire transmission, wireless transmission method.Yet outdoor LED display is installed on the building at the front body usually, and screen is bustling downtown streets below the body, may be separated by by roads such as bicycle lane, car lane, road fence table barrier between light tone degree parameter acquisition equipment and the LED display.Adopt the cable data transmission mode, data line between parameter acquisition computing machine and the demonstration control computer crosses the street, very easily by the rolling of motor vehicle, trampling of pedestrian and impaired, not only can influence normal traffic order, also can produce interference, so the field wiring of cable data transmission is difficult in the collection of actual LED display light tone degree parameter and implements to gatherer process; Adopt the wireless data transmission mode, can not relate to problems such as field wiring, but its poor anti jamming capability, very easily be subjected to effects limit such as site environment, for example indoor owing to showing that control computer is installed in Long-distance Control usually, indoor wall can't normally be set up cordless communication network to the shielding of wireless signal, and the hardware cost height.The individual cases LED display is the main control computer control demonstration by the place remote pulpit, can't realize message exchange by existing wire transmission mode and wireless transmission method at all.If the employing manual method shows that control computer control and parameter acquisition computing machine all have staff's collecting work efficient that cooperatively interacts low, human error appears in operating process easily, be not suitable for the mass data collection, be difficult in the actual acquisition and implement.
Summary of the invention
The collection in worksite that the technical problem to be solved in the present invention provides a kind of light tone degree parameter information makes things convenient for, collecting efficiency is high, data are accurate, is fit to the display parameter of display screen acquisition method based on identification pattern sequence that a large amount of video datas are gathered.
In order to solve the problems of the technologies described above, the display parameter of display screen acquisition method based on identification pattern sequence of the present invention comprises the steps:
At first light tone degree parameter acquisition equipment is placed on the place ahead of LED display;
The control LED display makes its explicit identification pattern;
Control light tone degree parameter acquisition equipment is gathered the image that has identification pattern that LED display shows;
The image that has identification pattern that collects is discerned, drawn title with this identification pattern corresponding LED display parameter of display screen information;
The control LED display shows and the unique corresponding display message to be measured of described identification pattern;
Control light tone degree parameter acquisition equipment is gathered the image of the display message to be measured that shows on the LED display;
Image to the display message to be measured that collects carries out analytical calculation, draw the light tone degree supplemental characteristic of LED display display message to be measured, according to the display parameter information title light tone degree supplemental characteristic that obtains is named, and preserved light tone degree supplemental characteristic and title thereof.
The time of described LED display explicit identification pattern is greater than the time that the image that has identification pattern that collects is discerned.
Described LED display shows that the time of display message to be measured is greater than the time that the image that has display message to be measured that collects is carried out analytical calculation and the light tone degree supplemental characteristic that obtains is named.
Light tone degree parameter acquisition equipment is by discerning the image that has identification pattern among the present invention, can name the light tone degree supplemental characteristic that obtains, and light tone degree supplemental characteristic and title thereof preserved in the lump, when gathering the display message a plurality of to be measured of LED display, certain light tone degree supplemental characteristic that can unique definite storage is corresponding with which display message to be measured, thereby provides reliable basis for the subsequent analysis of LED display display characteristic and the correction of display screen.Adopt the display parameter of display screen harvester based on identification pattern sequence of the present invention, do not need wired or wireless communication between light tone degree parameter acquisition equipment and the LED display, reduced requirement to site environment, shortened the early-stage preparations time of LED display being carried out light tone degree parameter acquisition, bring convenience for the collection in worksite of LED display light tone degree parameter information, improved the work efficiency of LED display light tone degree parameter information collection in worksite greatly.
Another technical matters that the present invention will solve provides a kind of device of realizing said method.
In order to solve the problems of the technologies described above, realization of the present invention comprises light tone degree parameter acquisition equipment based on the device of the display parameter of display screen acquisition method of identification pattern sequence, and collecting computer shows control computer; Described collecting computer is connected with light tone degree parameter acquisition equipment by the image data line, shows that control computer is connected with LED display by the screen data transmission line;
Described demonstration control computer is used for identification pattern and display message to be measured are shown to LED display by the screen data transmission line;
Described collecting computer is gathered the information that LED display shows by image data line traffic control light tone degree parameter acquisition equipment, the image of gathering that has identification pattern is discerned, drawn and this identification pattern corresponding LED display parameter of display screen name of the information; Image to the display message to be measured of gathering carries out analytical calculation, draw the light tone degree supplemental characteristic of display message to be measured, according to the display parameter information title light tone degree supplemental characteristic that obtains is named, and light tone degree supplemental characteristic and title thereof are saved on the hard disk.
Adopt the method for said apparatus realization display parameter of display screen collection to carry out according to the following steps:
A, with a plurality of identification patterns be stored on the hard disk that shows control computer according to sequence with the unique corresponding display message to be measured of each identification pattern;
B, light tone degree parameter acquisition equipment and collecting computer are placed on optimal acquisition position, LED display the place ahead;
C, demonstration control computer control LED display explicit identification pattern;
D, light tone degree parameter acquisition equipment are gathered the image that has identification pattern that LED display shows, are sent to collecting computer by the image data line;
E, collecting computer are discerned the image that has identification pattern that collects, and draw the title with this identification pattern corresponding LED display parameter of display screen information;
F, demonstration control computer control LED display show and the unique corresponding display message to be measured of identification pattern;
G, light tone degree parameter acquisition equipment are gathered the image of the display message to be measured that shows on the LED display, are sent to collecting computer by the image data line;
H, collecting computer carry out analytical calculation to the image of the display message to be measured that collects, draw the light tone degree supplemental characteristic of LED display display message to be measured, and by the display parameter information title that obtains by step e to the name of light tone degree supplemental characteristic, be saved in light tone degree supplemental characteristic and title thereof on the hard disk in the lump;
I, demonstration control computer judge whether to also have display message to be measured;
If judged result then repeats C for being, D, E, F, G, H, I;
If judged result shows that for not control computer stops LED display and shows, light tone degree parameter acquisition equipment stops to gather.
The time that the demonstration time of described demonstration control computer control LED display explicit identification pattern is discerned the image that has identification pattern that collects greater than collecting computer.
Described demonstration control computer control LED display shows the time that the demonstration time of display message to be measured calculates and names the image that has display message to be measured that collects greater than collecting computer.
The advantage of the display parameter of display screen harvester based on identification pattern sequence of the present invention:
1) described collecting computer and showing between the control computer without any need for wired connection, do not need secondary wiring at the scene, not influenced by on-the-spot road table barrier etc., reduced the requirement of device to site environment, shortened the early-stage preparations time of LED display being carried out light tone degree parameter acquisition, improve work efficiency, improved the practicality of LED display light tone degree parameter acquisition device;
2) compare with other communication (bluetooth, wireless network etc.), the present invention does not have any restriction to the position that shows control computer, does not need to consider situations such as signal shielding, not influenced by site environment.Do not need to increase extra hardware cost input.
3) do not shown the restriction of control computer position, do not need to realize the work of LED display light tone degree parameter acquisition easily and efficiently showing that control computer transforms.
4) collecting computer with show between the control computer without any need for communicating by letter.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the structured flowchart of the display parameter of display screen harvester based on identification pattern sequence of the present invention.
Fig. 2 is red primary, green primary, the blue primary pixel light tone degree parameter acquisition process flow diagram of the display parameter of display screen acquisition method based on identification pattern sequence of the present invention.
Fig. 3 a, 3b, 3c, 3d, 3e, 3f, 3g are the mapping table of a kind of identification pattern of the present invention and LED display light tone degree supplemental characteristic title and display message to be measured.
Fig. 4 a, 4b, 4c, 4d, 4e, 4f, 4g, 4h are the mapping table of another kind of identification pattern of the present invention and LED display light tone degree supplemental characteristic title and display message to be measured.
Embodiment
Institute is shown in Figure 1, is the display parameter of display screen harvester based on identification pattern sequence of the present invention, and light tone degree parameter acquisition device 101 is connected with collecting computer 103 by image data line 102; Show that control computer 104 is connected with LED display 106 by screen data transmission line 105.Described light tone degree parameter acquisition device 101 adopts high resolving power 1,300 ten thousand pixel faces array CCD cameras, be positioned at the place ahead of LED display 106, the distance between light tone degree parameter acquisition device 101 and the LED display 106 should be able to guarantee to finish the disposable collection of light tone degree information of pixel of effective viewing area of LED display 106.Image data line 102 is 1394 data lines.
As shown in Figure 2, the method that adopts the display parameter of display screen harvester based on identification pattern sequence of the present invention to gather red primary 255 gray levels, green primary 255 gray levels and blue primary 255 gray level light tone degree parameters is as follows:
Preserve identification pattern, the red primary 255 gray level display information of red primary 255 gray levels on the hard disk of described demonstration control computer 104, the identification pattern of green primary 255 gray levels, green primary 255 gray level display information, the identification pattern of blue primary 255 gray levels and blue primary 255 gray level display information;
Described light tone degree parameter acquisition equipment and collecting computer are placed on LED display front end optimal acquisition position;
Described demonstration control computer control LED display shows the identification pattern of red primary 255 gray levels, and the demonstration time is 5 seconds;
Described light tone degree parameter acquisition equipment is gathered the image of the identification pattern that has red primary 255 gray levels that LED display shows, is sent to collecting computer by the image data line;
Described collecting computer is discerned the image of the identification pattern that has red primary 255 gray levels that collects, draws the identification pattern corresponding LED display parameter of display screen name of the information R255 with red primary 255 gray levels, and recognition time is less than 3 seconds;
Described demonstration control computer control LED display shows and the unique corresponding red primary to be measured 255 gray level display information of the identification pattern of red primary 255 gray levels that the demonstration time is 5 seconds;
Described light tone degree parameter acquisition equipment is gathered the image of the red primary to be measured 255 gray level display information that show on the LED display, is sent to collecting computer by the image data line;
Described collecting computer carries out analytical calculation to the image of the red primary to be measured 255 gray level display information that collect, draw the light tone degree supplemental characteristic of LED display red primary 255 gray level display information to be measured, and according to display parameter information title R255 with light tone degree supplemental characteristic called after R255, and light tone degree supplemental characteristic and title R255 thereof are saved on the hard disk; Processing time is less than 3 seconds.
Whether the inspection of described demonstration control computer also has display message to be measured, is checked through green primary 255 gray levels display message to be measured in addition;
Described demonstration control computer control LED display shows the identification pattern of green primary 255 gray levels, and the demonstration time is 5 seconds;
Described light tone degree parameter acquisition equipment is gathered the image of the identification pattern of green primary 255 gray levels of LED display demonstration, is sent to collecting computer by the image data line;
Described collecting computer is discerned the image of the identification pattern that has green primary 255 gray levels that collects, draws the identification pattern corresponding LED display parameter of display screen name of the information G255 with green primary 255 gray levels, and recognition time is less than 3 seconds;
Described demonstration control computer control LED display shows and the unique corresponding green primary to be measured 255 gray level display information of the identification pattern of green primary 255 gray levels that the demonstration time is 5 seconds;
Described light tone degree parameter acquisition equipment is gathered the image of the green primary to be measured 255 gray level display information that show on the LED display, is sent to collecting computer by the image data line;
Described collecting computer carries out analytical calculation to the image of the green primary to be measured 255 gray level display information that collect, draw the light tone degree supplemental characteristic of LED display green primary 255 gray level display information to be measured, and according to display parameter information title G255 with light tone degree supplemental characteristic called after G255, and light tone degree supplemental characteristic and title G255 thereof are saved on the hard disk; Processing time is less than 3 seconds.
Whether the inspection of described demonstration control computer also has display message to be measured, is checked through blue primary 255 gray levels display message to be measured in addition;
Described demonstration control computer control LED display shows the identification pattern of blue primary 255 gray levels, and the demonstration time is 5 seconds;
Described light tone degree parameter acquisition equipment is gathered the image of the identification pattern of blue primary 255 gray levels of LED display demonstration, is sent to collecting computer by the image data line;
Described collecting computer is discerned the image of the identification pattern that has blue primary 255 gray levels that collects, draws the identification pattern corresponding LED display parameter of display screen name of the information B255 with blue primary 255 gray levels, and recognition time is less than 3 seconds;
Described demonstration control computer control LED display shows and the unique corresponding blue primary to be measured 255 gray level display information of the identification pattern of blue primary 255 gray levels that the demonstration time is 5 seconds;
Described light tone degree parameter acquisition equipment is gathered the image of the blue primary to be measured 255 gray level display information that show on the LED display, is sent to collecting computer by the image data line;
Described collecting computer carries out analytical calculation to the image of the blue primary to be measured 255 gray level display information that collect, draw the light tone degree supplemental characteristic of LED display blue primary 255 gray level display information to be measured, and according to display parameter information title B255 with light tone degree supplemental characteristic called after B255, and light tone degree supplemental characteristic and title B255 thereof are saved on the hard disk; Processing time is less than 3 seconds.
Whether the inspection of described demonstration control computer also has display message to be measured, and being checked through does not have display message to be measured; Show that control computer stops LED display and shows, light tone degree parameter acquisition equipment stops to gather.
So far finish the light tone degree gatherer process of red primary 255 gray levels, green primary 255 gray levels, blue primary 255 gray levels.
Embodiment 1
Adopt English alphabet and data combination form to generate identification pattern, existing ripe recognizer is discerned identification pattern, and it is existing simple that recognizer becomes, the discrimination height.On behalf of the display primary of display message, English alphabet mainly contain R, G, B, W, and the display primary gray level of digitized representation display message is mainly 0 to 255 gray level.R, G, B, W and 0 to 255 combination can generate a plurality of identification patterns.
Table 1 is the identification pattern of present embodiment and the mapping table of LED display light tone degree supplemental characteristic title and data presentation information.
The identification pattern content is " R 255 ", represents LED display light tone degree supplemental characteristic title R255, and the to be measured display message corresponding with identification pattern is red primary 255 gray levels;
The identification pattern content is " G 255 ", represents LED display light tone degree supplemental characteristic title G255, and the to be measured display message corresponding with identification pattern is green primary 255 gray levels;
The identification pattern content is " B 255 ", represents LED display light tone degree supplemental characteristic title B255, and the to be measured display message corresponding with identification pattern is blue primary 255 gray levels;
The identification pattern content is " W 255 ", represents LED display light tone degree supplemental characteristic title W255, and the to be measured display message corresponding with identification pattern is white 255 gray levels;
The identification pattern content is " R 200 ", represents LED display light tone degree supplemental characteristic title R200, and the to be measured display message corresponding with identification pattern is red primary 200 gray levels;
The identification pattern content is " G 200 ", represents LED display light tone degree supplemental characteristic title G200, and the to be measured display message corresponding with identification pattern is green primary 200 gray levels;
The identification pattern content is " B 200 ", represents LED display light tone degree supplemental characteristic title B200, and the to be measured display message corresponding with identification pattern is blue primary 200 gray levels.
Table 1
| Identification pattern | Light tone degree supplemental characteristic title | Display message to be measured | |
| Pattern shown in Fig. 3 a | R255 | Red primary 255 gray levels | |
| Pattern shown in Fig. 3 b | G255 | Green primary 255 gray levels | |
| Pattern shown in Fig. 3 c | B255 | Blue primary 255 gray levels | |
| Pattern shown in Fig. 3 | W255 | White | 255 gray levels |
| Pattern shown in Fig. 3 e | R200 | Red primary 200 gray levels | |
| Pattern shown in Fig. 3 f | G200 | Green primary 200 gray levels | |
| Pattern shown in Fig. 3 g | B200 | Blue primary 200 gray levels |
Embodiment 2
Table 2 is the identification pattern (bar code) of present embodiment and the mapping table of LED display light tone degree supplemental characteristic title and display message to be measured.
Adopt bar code form to generate identification pattern, identification pattern is divided into 20 equal portions at vertical direction, and black is put for separated region in the odd number zone, and the even number zone is a command code, puts black or white; Black represents 0, and white represents 1, and totally 10, the 0th, 1 is the color showing position, 00 represents red primary, and 01 represents green primary, and 10 represent blue primary, 11 represent white, and the 2nd, 3,4,5,6,7,8 and 9 is grey level, represent 0 to 255 totally 256 gray levels.As: 00000000 to represent gray level be that 0,00000001 to represent gray level be 1 ..., 10000000 to represent gray level be 128 ..., 11001000 to represent gray level be 200 ..., 11111111 to represent gray level be 255.
Adopt bar code form to generate identification pattern, can be simply ask row and value to obtain the coding of identification pattern, can draw the information of bar code representative by decoding to the image of the identification pattern that collects.The bar-code identification algorithm is realized simple, and recognition speed is fast.
Table 2
| Identification pattern | The identification pattern decoding | Light tone degree supplemental characteristic title | Display message to be measured | |
| Pattern shown in Fig. 4 a | 0?0?0?0?0?0?0?0?0?0 | B0 | Blue primary 0 gray level | |
| Pattern shown in Fig. 4 b | 1?1?1?1?1?1?1?1?1?1 | | White | 255 gray levels |
| Pattern shown in Fig. 4 c | 0?0?1?1?1?1?1?1?1?1 | R255 | Red primary 255 gray levels | |
| Pattern shown in Fig. 4 d | 0?1?1?1?1?1?1?1?1?1 | G255 | Green primary 255 gray levels | |
| Pattern shown in Fig. 4 e | 1?0?1?1?1?1?1?1?1?1 | B255 | Blue primary 255 gray levels | |
| Pattern shown in Fig. 4 f | 0?0?1?1?0?0?1?0?0?0? | R200 | Red primary 200 gray levels | |
| Pattern shown in Fig. 4 g | 0?1?1?1?0?0?1?0?0?0 | G200 | Green primary 200 gray levels | |
| Pattern shown in Fig. 4 h | 1?0?1?1?0?0?1?0?0?0 | B200 | Blue primary 200 gray levels |
In sum, the object of the present invention is to provide a kind of LED display light tone degree parameter collecting method and device thereof based on identification pattern sequence, can name showing the control computer content displayed by identification pattern, realize the communication of data message between collecting computer and the demonstration control computer, the collection of wireless to realize, remote LED display light tone degree parameter.Need not extra hardware input.Do not need at the scene the secondary wiring, not influenced by on-the-spot road table barrier etc., reduced the requirement of system, shortened the early-stage preparations time of LED display being carried out light tone degree parameter acquisition, improved the practicality of acquisition system site environment.The present invention is economical and practical, has brought convenience for the collection in worksite of LED display light tone degree parameter information, has improved the work efficiency of LED display light tone degree parameter information collection in worksite greatly.
The invention is not restricted to above-mentioned embodiment, identification pattern can also adopt other forms.Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (6)
1, a kind of display parameter of display screen acquisition method based on identification pattern sequence is characterized in that comprising the steps:
At first light tone degree parameter acquisition equipment is placed on the place ahead of LED display;
The control LED display makes its explicit identification pattern;
Control light tone degree parameter acquisition equipment is gathered the image that has identification pattern that LED display shows;
The image that has identification pattern that collects is discerned, drawn title with this identification pattern corresponding LED display parameter of display screen information;
The control LED display shows and the unique corresponding display message to be measured of described identification pattern;
Control light tone degree parameter acquisition equipment is gathered the image of the display message to be measured that shows on the LED display;
Image to the display message to be measured that collects carries out analytical calculation, draw the light tone degree supplemental characteristic of LED display display message to be measured, according to the display parameter information title light tone degree supplemental characteristic that obtains is named, and preserved light tone degree supplemental characteristic and title thereof.
2. the LED display light tone degree parameter collecting method based on identification pattern sequence according to claim 1, the time that it is characterized in that LED display explicit identification pattern is greater than the time that the image that has identification pattern that collects is discerned.
3. the LED display light tone degree parameter collecting method based on identification pattern sequence according to claim 1 is characterized in that LED display shows that the time of display message to be measured is greater than the time that the image that has display message to be measured that collects is carried out analytical calculation and the light tone degree supplemental characteristic that obtains is named.
4, according to claim 1, the described display parameter of display screen acquisition method of 2 or 3 any claims, it is characterized in that described identification pattern is a bar code based on identification pattern sequence.
5, the display parameter of display screen acquisition method based on identification pattern sequence according to claim 4, it is characterized in that being divided into 20 equal portions at vertical direction as the bar code of identification pattern, black is put for separated region in the odd number zone, and the even number zone is a command code, puts black or white; Black represents 0, and white represents 1, and totally 10, the 0th, 1 is the color showing position, 00 represents red primary, and 01 represents green primary, and 10 represent blue primary, 11 represent white, and the 2nd, 3,4,5,6,7,8 and 9 is grey level, represent 0 to 255 totally 256 gray levels.
6. a device of realizing the described display parameter of display screen acquisition method based on identification pattern sequence of claim 1 comprises light tone degree parameter acquisition equipment (101), and collecting computer (103) shows control computer (104); Described collecting computer (103) is connected with light tone degree parameter acquisition equipment (101) by image data line (102), shows that control computer (104) is connected with LED display (106) by screen data transmission line (105); It is characterized in that
Described demonstration control computer is used for identification pattern and display message to be measured are shown to LED display by the screen data transmission line;
Described collecting computer is gathered the information that LED display shows by image data line traffic control light tone degree parameter acquisition equipment, the image of gathering that has identification pattern is discerned, drawn and this identification pattern corresponding LED display parameter of display screen name of the information; Image to the display message to be measured of gathering carries out analytical calculation, draw the light tone degree supplemental characteristic of display message to be measured, according to the display parameter information title light tone degree supplemental characteristic that obtains is named, and light tone degree supplemental characteristic and title thereof are saved on the hard disk.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559871A (en) * | 2013-11-11 | 2014-02-05 | 西安诺瓦电子科技有限公司 | Bright chroma information collecting and storing method for LED display module |
| CN104008727A (en) * | 2014-06-09 | 2014-08-27 | 西安电子科技大学 | Method and system for detecting heat dissipation uniformity of LED display device |
| CN104102666A (en) * | 2013-04-11 | 2014-10-15 | 宏碁股份有限公司 | Data sharing system and data sharing method |
| CN113487989A (en) * | 2021-06-30 | 2021-10-08 | 长春希达电子技术有限公司 | LED display module detection method and detection system thereof |
-
2008
- 2008-12-29 CN CN2008101876173A patent/CN101441850B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104102666A (en) * | 2013-04-11 | 2014-10-15 | 宏碁股份有限公司 | Data sharing system and data sharing method |
| CN103559871A (en) * | 2013-11-11 | 2014-02-05 | 西安诺瓦电子科技有限公司 | Bright chroma information collecting and storing method for LED display module |
| CN104008727A (en) * | 2014-06-09 | 2014-08-27 | 西安电子科技大学 | Method and system for detecting heat dissipation uniformity of LED display device |
| CN104008727B (en) * | 2014-06-09 | 2016-06-29 | 西安电子科技大学 | LED display heat dissipation uniformity detection method |
| CN113487989A (en) * | 2021-06-30 | 2021-10-08 | 长春希达电子技术有限公司 | LED display module detection method and detection system thereof |
| CN113487989B (en) * | 2021-06-30 | 2022-08-23 | 长春希达电子技术有限公司 | LED display module detection method and detection system thereof |
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| CN101441850B (en) | 2010-12-01 |
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