Analysis of LED display control mode

Analysis of the LED display control method. Due to the different installation positions of the LED display, the customer's requirements are different, the distance is different, and the frequency of sending programs is different. We list the commonly used LED display control schemes for your reference. Network port: a single network cable to control the LED display is generally no more than 100 meters, using switches, routers and other relays, or through the Internet, the theoretical communication distance is the world (however, the two terminals are required to be able to communicate point-to-point directly, and they must understand the network to achieve it) Serial port: Under normal circumstances, the control LED display can reach 50 meters. It is possible to reach 100 meters by using a good cable with shielding and lowering the baud rate, which must be possible with experience in electronic technology.

USB: generally control the LED display screen within 5 meters. Using a better shielded cable, it is possible to reach 10 meters in a non-interference environment. It is possible to reach up to 20 meters with an amplified line.

WeChat wifi: WeChat wifi communication control LED display has no distance limit, the number of control cards is currently the most powerful WeChat wifi control card, you can use WeChat to send programs, and you can also send programs anytime and anywhere! Wifi: In the open area, there is no obstacle between the antennas, and as high as possible, the control LED display can reach a communication distance of 700 meters. If there is an obstacle between the antennas, the communication distance will be reduced. The empirical value is: the communication distance can reach 300 meters every other building. Note: The prerequisite for the antenna to be as high as possible is that it cannot be higher than the building, otherwise it will cause lightning strikes! .