In the led display industry in the so-called control system is what principle it, led display control system, mainly synchronous system and asynchronous system of these two. Synchronization system: that is, led display and computer monitor content is fully synchronized display. Synchronous control system with those characteristics? Synchronization control system is mainly used to display real-time video, graphics, notification and so on. Mainly used for indoor or outdoor full color LED display. led display synchronous control system control display works basically the same as the computer monitor, it is at least 60 frames / sec update rate corresponding to real-time mapping on the computer monitor image, usually with multi-grayscale color display , Can achieve the effect of multimedia advertising.outdoor advertising ledtv
Its characteristics are: real-time, expressive, the operation is more complex, and the contents of the computer monitor is fully synchronized display, so that if the computer is closed, then the led display is not displayed, so the playing time will be subject to certain restrictions The This system is mainly used in places where real-time requirements are relatively high. What is the "asynchronous control system"? Asynchronous system: that is, led display and computer monitor content is not synchronized. First in the computer after editing, and then sent to the control card, then the control card and then display. Asynchronous control system with those features? Asynchronous control system, also known as led display offline control system or offline card. Mainly used to display a variety of text, symbols and graphics or animation based. Screen display information by the computer editing, RS232 / 485 serial port pre-embedded LED screen frame memory, and then screen-by-screen playback, cycle, display colorful, varied, LED light pole screen.outdoor ledprojector
Its characteristics are: simple operation, the use of a wide range. The biggest feature is the ability to control the contents of the display screen, and the contents of the computer monitor is not synchronized. First in the computer after editing, and then sent to the control card, then the control card and then display. So, even if the computer is turned off, led display can also be displayed, but the amount of information will be subject to certain restrictions, because the control card storage capacity has a certain range. It is suitable for real-time requirements of the place is not high.
What are the advantages and disadvantages of these two control methods? The advantages of synchronous control: with the computer system, superior performance, suitable for fixed location, display the requirements of high places. Years of development system is mature, functional, support live video, etc. Load range, display good, suitable for traditional large-screen project. Disadvantages of synchronous control: rely on computer systems, broadcast venues have limited homogeneity of functional homogeneity, fierce competition in the traditional market The market tends to saturation, growth is weak. Advantages of asynchronous control: the rapid improvement of embedded chip performance, asynchronous system to accelerate the growth of the program to accept, store, compile and other functions in one, more flexible application. Versatile, buy more, help differentiated marketing. Asynchronous control of the shortcomings: the degree of customer awareness of the asynchronous system to be improved with a limited range of programs show the program slightly less than the synchronization system, but the two led display prices are not the same.led wall display
Synchronous control system: This LED screen is installed using the synchronous control system, the reason why the choice of synchronous control system is because the LED screen is the main purpose of the venue activities related to the show, the rich performance of the screen, real-time have a higher demand , So this LED screen loading synchronization control system is the most appropriate choice. Asynchronous control system: This led display is installed using the asynchronous control system, the reason for choosing asynchronous control system is because the main purpose of this screen is advertising, it is because the system can be achieved through the cloud server graphics transmission in a timely manner, Sub-regional advertising, news spots, fixed-point release tasks and other operations, saving a lot of manpower and resources and other issues, so this led display for asynchronous control system.led wall display indoor