In LED display screens, the control system is also an important part. The control system of LED display screens is generally divided into two types: synchronous system and asynchronous system. Only by understanding the differences between synchronous and asynchronous systems of LED display screens can we have a comprehensive understanding of LED display screens.
Display screen synchronization control system:
It means that the content displayed on the computer monitor is completely synchronized with what is displayed on the computer, The LED display screen displays what content, and the key is to update and synchronize the content information specified by the computer in real time. Therefore, synchronous control must have a fixed computer to control the large screen. Once the computer is turned off, the LED display screen cannot receive signals and will not be able to display. This LED synchronization system is mainly used in places with high real-time requirements.
LED display screen asynchronous system:
It's just that information doesn't need to be updated synchronously in real time. The principle is to first edit the content that needs to be played on the computer, and then use transmission media (network cable, data cable, 3G/4G network, etc.) WIFI, USB flash drive, etc. are sent to the control card of the LED display screen, and then the control card will display again. So, even if the computer is turned off, the display screen can still display pre-set content, which is suitable for places with low real-time requirements.
What are the advantages and disadvantages of these two control methods for outdoor advertising screens?
The advantages and disadvantages of LED display screen synchronous control system: The advantage is that it can play in real time and the amount of playback information is not limited. The disadvantage is that the playback time will be limited and will change with the playback time of the computer system. Once communication with the computer is interrupted, The LED display screen will stop playing.
The advantages and disadvantages of LED display screen asynchronous control system: The advantage is that it can achieve offline playback and store information. The playback information is stored in the control card in advance, but the disadvantage is that it cannot be synchronized with the computer for playback, and the amount of playback information will be limited. The reason is that the storage amount of the control card has a certain range, and cannot be unlimited, which leads to the limitation of the playback information amount of the asynchronous control system.
Post time: Jul-10-2024
