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Sports venues to the quality of the LED display 10 factors

 

Along with the wide application of the LED display and the development of technology, the LED display in the application of sports stadium is becoming more and more popular. Stadium LED screen, LED scoring screen, the LED screen around products is more and more into the various media events and stadium project. So, people in the sports venues LED display quality requirements more and more is also high. Let us look at below, exactly is what are the factors that would affect the quality of the stadium to the LED screen.

A, safety

Sports venues screen safety requirements should be consistent with the SJ/T 11141-2003 in 5.4 requirements.
The display sports venues should be separate power supply, should comply with the SJ/T 11141-2003 in 5.8 requirements. Sports venues display cable line construction inspection must be in accordance with GB 50168, GB 50171 requirements. The engineering quality should be consistent with the requirements of the GB 50303.
Sports venues display contains polymer devices (including: LED module shell, LED module filling glue, PCB, and the power cord sheath, etc) need for flame retardant materials.
Sports venues should display screen, lightning protection, Maryland automatic fire alarm and automatic GuanBing function, distribution ark should have overload protection function, leakage protection function and step-by-step power function.
Second, reliability

Sports venues LED display reliability should comply with the SJ/T 11141-2003 in 5. 10 requirements.

Three, the display screen and installation position

Except in special circumstances, appropriate makes venues fixed seat 95 spectators formal written above satisfy stadia biggest requirements.
The games of the athletes, coaches and referees (diving game scores except the referee) are convenient to clearly see the contents of the screen.
Four, the biggest stadia and character level

The biggest stadia and the height of the characters (see formula calculation formula (1) > for:

H = k?d
The formula:
H biggest stadia, the unit is m;
K-stadia coefficient, generally take 345;
D-character height, the unit is me
The LED display brightness: building structure independent swimming pool and TiaoShuiGuan screen each character at least above. . 2 m, building structure of a swimming TiaoShuiGuan screen each character at least more than 0.28 m,

Five, the optical properties

1, perspective: sports venues screen level Angle not less than 1500, vertical perspective on not less than 100, perspective not less than 200,
2, brightness should comply with the provisions of the table 1 and can adjust.
3, contrast: background intensity of illumination in less than 20 lx, screen contrast should be able to reach 100 e 1.
4, white field color product coordinates: white field color product according to the use of the environment in the coordinate colour temperature 5 000 K-9 500 K adjustable within, by CIE 1931 chromaticity system, allow for poor accidents ∣ ≦ 0.030 x, ∣ enables delta y ∣ ≦ 0.030.
5, brightness uniformity: sports venues the inhomogeneity of the display screen should be less than 10%.
Six, display and control

Can real-time display of the game rolling the timer.
Can scroll shows the results of the competition.
Can flip shows the results of the competition.
Display text content can be automatically, manual switching.
For a video display function and and the display, the words and pictures, animation, live between images should be able to mutual automatic and manual switching.
Seven, interface

The network interface: should have IEEE 802. 3 etheric network interface.
Data interface: should have include standard RS-232 serial interface, the assembly of the ability of data interface, want to be able to run the games and scoring system connection, receive data.
Video interface: a graphic and video display to display the function should have video interface, may receive a variety of systems video signal.
Eight, electric performance

Change frame frequency: LED display screen for video frame frequency should be not less than 60 frame/S.
Refresh frequency: sports venues with graphic display screen refresh frequency should be not less than 60 Hz; Full color video screen refresh frequency should be no less than 240 Hz,
Pixel out of control rate: the gym display of out of control rate should be no more than three over ten thousand, the stadium display of out of control rate should be no more than two over one thousand, and for discrete distribution.
Gray level: used to show video screen display, each gezer should have 256 level (8-bit) of gray processing power.
Video display resolution: to ensure that the video display screen, screen shows video screen of minimum resolution for 320 (W) X240 (H).
Nine, flat screen shows characters

A comprehensive gymnasium: rating project (gymnastics, martial art, figure skating, etc) the game with a comprehensive gymnasium at least 16 dot matrix display can show Chinese characters line 12, line spacing not less than 1/10 of the characters, each able to display at least 27 Chinese characters. Ball games to give priority to with game comprehensive gymnasium screen can show at least 16 dot matrix characters 8 line, line spacing not less than 1/10 of the characters, each able to display at least 16 characters.
Fields: screen can show at least 16 dot matrix characters and line, line spacing not less than 1/10 of the characters, each able to display at least 26 characters. Each character are has blinking function.
Swimming pool: screen can show at least 16 dot matrix characters and line, line spacing not less than 1/10 of the characters, each able to display at least 25 characters. Each character are has blinking function
TiaoShuiGuan: screen can show at least 16 dot matrix characters line 12, line spacing not less than 1/10 of the characters, each able to display at least 13 Chinese characters.
Ten, appearance and structure

Sports venues display appearance should comply with the SJ/T 11141-2003 in 5.3.2 requirements.
Sports venues display enclosure protection grade should comply with the SJ/T 11141-2003 in 5.3.3 requirements.
Sports venues of the display screen pixels from the relative error should be consistent with the center SJ/T 11141-2003 in 5.3.4 requirements.
Sports venues of the led display screen of flatness should comply with the SJ/T 11141-2003 in 5. 3.


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