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.
4G Industrial Router
Analysis of advantages and disadvantages of 4G industrial routers
First, what is the classification of industrial routers?
Industrial Router (a communication device that can be divided into 2G routers, 2.5G routers, 3G routers and 4G routers according to network standards.
For users, you can communicate with the Internet by setting a default gateway on your PC or network device. In fact, the default gateway configured for network devices is the packet export for network devices. After the packet is sent to the Ethernet port of the router, the router performs the next job, so the router is an Internet relay.
Second, how do industrial routers work
So how does the router forward the packet? Just like getting somewhere, you need to place a route. This route is a routing table. This routing table contains all the destination network addresses owned by the router, as well as the best path to reach those networks through the router. This is because there is a routing table, so the router can forward packets according to the routing table. That's how routers work.
Understand what is an industrial router and how it works, it is not difficult to understand the advantages and disadvantages of the router. Here we focus on the advantages and disadvantages of 4G industrial routers.
Third, the advantages of 4G industrial routers
For networks interconnected via single-protocol industrial-grade wireless routers, the same or different protocols can be used at layers 1-2. Layer 3 uses the same routable protocol and requires the same or compatible protocols at layer 4 and beyond.
Industrial routers can perform complex routing calculations and are suitable for connecting three or more large networks with complex network topologies.
Industrial-grade routers can isolate broadcast storm information in the source network, thereby reducing and mitigating the impact of broadcast storms.
Multiprotocol industrial wireless routers can be used as network interconnection platforms using different communication protocols because they can connect to the network using different communication protocols.
The entire network router can also be used as a bridge to handle non-routable protocols.
Industrial 4G routers enable you to isolate unnecessary communications so that the interconnected network maintains its own area of independent management and control, thereby improving network security performance. Therefore, industrial-grade 4G routers are commonly used as firewalls to restrict access to the internal and external networks (Internet) of the LAN, as well as the internal areas of the LAN, and act as network masking.
It can provide reliable transport and prioritization services, and industrial LTE routers do not need to maintain a persistent connection between networks that communicate with each other.
Complete Netcom router network segmentation improves network performance and reduces host load.
Third, the advantages of 4G industrial routers
High price
When installing an industrial LTE router, it is difficult to install and maintain due to the large number of initial configurations
If you spend more time processing, the transmission performance of the entire network of the industrial router will decrease.
Unlike Bridges, routers across industrial networks are protocol-related. Each advanced protocol used for network connectivity must be configured separately, and an industrial-grade network-grade router with a separate protocol for each protocol must be provided.
Industrial Netcom routers do not support non-routed protocols, so when interconnecting multiple networks, there are restrictions on the protocols used by the connected networks.
4G Industrial Router,Sim Router Industrial,Industrial Lan Router,4G Modem Router Industrial
Shenzhen MovingComm Technology Co., Ltd. , https://www.mcrouters.com