LED display control system, generally there are two synchronous systems and asynchronous systems.
Synchronization system: that is, with the contents of the computer monitor is fully synchronized display, so that if the computer is turned off, then the LED display is not displayed. This system is mainly used in places where real-time requirements are relatively high.
Asynchronous system: that is, with 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. Therefore, even if the computer is turned off, the display can also be displayed, it is suitable for real-time requirements of the place is not high.
So, what are the advantages and disadvantages of these two control methods? Xiaobian to the following simple analysis.
Synchronous control advantages and disadvantages: to achieve the playback, playback information is not limited, but the playing time will be subject to certain restrictions.
Asynchronous control: to achieve offline, and storage information, but can not achieve synchronous playback, and the amount of information will be subject to certain restrictions, because the control card storage capacity has a certain range.