With the development of the LED industry, outdoor media advertising forms are becoming more and more popular. With the perfect combination of technology and media, LED electronic screens can continue to maintain the form of outdoor advertising, from traditional LED billboards to monochrome screens, to today’s full-color LED electronic screens, all of which can reflect dreams and technology, Trends, fashion concepts.

 At present, outdoor LED electronic screens account for 80% of outdoor media advertising and become a new carrier for large-scale outdoor media advertising. Wireless control LED electronic screen technology is now available. Now you can see some common methods of wirelessly controlling LED electronic screens.

  WIFI wireless control

  How to operate: Install a wireless controller or other wireless devices, and bridge with the existing wireless network to build a wireless LAN, so that the network controller card can easily integrate and control the wireless network.

  Function: No wiring required, easy to install and debug, fast data transmission speed.

  Disadvantages: The communication distance is mainly the gain function of the bridge, the wireless communication distance is short, and the zone signal is weak or no signal. Suitable for places with short-distance wireless signals. If the display area has a wireless signal cover, by connecting the wireless router bridge connected to the control card to the wireless network, the LED electronic screen can be controlled by all computers in the internal network.

  RF wireless control

  Working principle: One side of the RF module is located on the control computer, and the other side is located on the serial port of the control card. After the computer installs the driver, a virtual serial port is created to transmit data through this serial port.

 Function: Easy to install and debug, the data transmission distance is as high as 300-1000 meters, no cost after use.

 Disadvantages: The wireless frequency band is not allowed for civilian use in the country. This 433MHZ deployment is very susceptible to signal interference. The baud rate is not very low. The baud rate can only use 4800 or 9600, which is not recommended.

GPRS wireless control

 Working mode: After the GPRS module is powered on, the dial-up Internet connection process is completed, and it is connected to the data center server. The client accesses the server through the client software and transmits information from the server. Features: Easy to install and debug, no distance limit, you can connect where there is a mobile phone signalReceiving information, the price is relatively cheap.

  Disadvantages: China Mobile needs to install a GPRS module of a mobile phone card with a data package of at least 5 yuan and a monthly data cost. Limited by the GPRS bandwidth, the transmission speed is slightly slower, and it is suitable for single and double color LED LED electronic screens that mainly play text.