Classification of LED sports event screen:
Led sports event screens are generally divided into live broadcast screens and timing scores. The computer network control system is used for data processing, controlling the content displayed on the large screen, providing real-time data for the network system and broadcast and television systems; the timing score system uses competition judgment The system is an infrastructure for obtaining basic scoring information for various sports competitions.
1. Full-color LED large screen
It is used to play the highlights on the field (including other fields), or to replay live close-ups in slow motion, or to use three-dimensional animation to express the game and a certain event.
2. LED fence screen
The led display next to the stadium is not only used to broadcast commercials, but also to replay the wonderful shots on the field, so that every exciting moment can be memorized. The led fence screen is made up of many single cabinets. The weight of each cabinet is controlled, and the cabinets are connected by snap-type connectors. This design enables manual disassembly and assembly, and easy maintenance. There is a separate support foot behind each box, through which the angle between the screen and the ground can be adjusted, ensuring the viewing angle of the audience.
3. Timing and scoring LED screen
It is connected to the timing and scoring system of the game and plays the player's performance and related information. In the sense of the game, the timing and scoring screen is more important. Some venues may not have a large video screen, but they cannot be used Screen for time scoring. The key to the timing and scoring screen is to be accurate and clear in real time, and to be as vivid and stronger as possible on this basis (such as animation, etc.). The scoring screen mainly displays the player's competition results, data, or other information in text or text plus graphic animation. The color can be monochromatic, multicolor, or full color.
LED sports event screen design considerations:
1. Security and reliability
The crowd density of sports venues is large, and the safety performance of the stadium equipment should be placed first. Under normal circumstances, the safety performance of the LED display screen of the stadium should meet the requirements of 5.4 in the SJ / T11141-2003 standard, and the reliability should meet the requirements of 5.10 in the standard. In the selection of materials, it is required to select polymer materials with good flame retardant properties (including LED module shells, LED module fillers, PCB boards, power cord sheaths, etc.). At the same time, in the design of power supply, the stadium LED display must be separate The power supply meets the requirements of 5.8 in the SJ / T11141-2003 standard; the construction and acceptance of cable lines must comply with the requirements of GB50168 and GB50171; the project quality should meet the requirements of GB50303. In addition, sports event led display should have smoke, lightning protection, automatic fire alarm and automatic screen off function, distribution cabinet should have overload protection function, leakage protection function and step-by-step power-on function.
2. Requirements on installation location and quantity.
The installation position of the LED display screen of sports events needs to ensure that more than 95% of the audience with fixed seats in the stadium can effectively watch, and the viewing distance and vision are wide. At the same time, it is required that the display content of the LED display screen can make the athletes, coaches and referees at the game site (except the diving score referee in the diving game) easily and clearly see.
3. Maximum viewing distance and character height requirements.
The brightness of led display screens for outdoor sports events should be above 8000cd / m2; the dual-primary color display should be above 4000cd / m2; and the monochrome should be above 2000cd / m2. The brightness of the full-color LED display in indoor stadiums and gyms is required to be more than 1000cd / m2; the dual-primary LED display is more than 300cd / m2; the monochrome is more than 120cd / m2. At the same time, in terms of character height requirements, each character of the LED display of the swimming pool and diving hall with independent architectural structure is at least higher than 0.2m, and each character of the LED display of the swimming diving hall with integrated architectural structure is at least higher than 0.28m.
4. Optical performance requirements.
The LED display screen of sports events requires a wide viewing angle, a large visual distance and far vision, and uniform and adjustable brightness. When the background illuminance is less than 20lx, the contrast of the LED display should be able to reach 100e1. The white field chromaticity coordinates can be adjusted within the color temperature of 5000K-9500K according to the use environment. According to the CIE1931 chromaticity system, the tolerance is △ x∣ ≦ 0.030, ∣ △ y∣ ≦ 0.030.
5. The display content can be controlled in real time.
Requires real-time display of the rolling time of the game; can display the rolling game results; can turn the page to display the game results; the displayed text content can be automatically and manually switched. For a full-color led display with graphic and video display functions, text and pictures, animations, and live broadcast images should be able to switch between each other automatically and manually.
It is also worth noting that the display system of the gymnasium should be able to clearly, timely, and accurately display the information of sports games, display the actual situation of the game through multimedia technology, and set off and create a tense and warm competition atmosphere. At the same time, the system is required to have a simple, clear, accurate, fast, and easy-to-operate human-machine interface, support a variety of sports competition projects, meet the requirements of various sports competition rules, and facilitate maintenance and upgrades.
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