The difference between LED display synchronous system and asynchronous system

183 views admin 2023-10-20

In the LED display, the control system is also a very important part. The control system of LED display screen is generally divided into two types: synchronous system and asynchronous system. To understand the difference between LED display synchronous system and asynchronous system, we can fully understand LED display.

Display synchronous control system: It is completely synchronized with the content of the computer monitor, what content is displayed on the computer, and what content is displayed on the LED display, 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, then the LED display can not receive signals, it will not be displayed. This LED synchronization system is mainly used in places with high real-time requirements.

LED display asynchronous system: The information does not have to be updated in real time. The principle is to first edit the content that needs to be played on the computer, and then send it to the control card of the LED display through the transmission medium (network cable, data cable, 3G/4G network, WIFI, U disk, etc.), and then the control card is displayed. Therefore, even if the computer is turned off, the display screen can display the pre-set content, which is suitable for places with low real-time requirements. For outdoor advertising screens, what are the advantages and disadvantages of these two control methods? LED display synchronous control system advantages and disadvantages: the advantage is to be able to play in real time, play information is not limited, the disadvantage is that the play time will be limited to a certain extent, will change with the computer system play time, once the computer communication is interrupted, the LED display will stop playing.

Advantages and disadvantages of LED display asynchronous control system: The advantage is that it can achieve offline playback, as well as storage information, play information is stored in advance in the control card, the disadvantage is that it can not achieve synchronous playback with the computer, and the playback information will be limited to a certain extent, because the storage capacity of the control card is a certain range, it cannot but be unlimited storage, which leads to the asynchronous control system to play information is limited.