What is a wireless LED control card?

GPRS wireless LED display control card mainly uses GPRS traffic network of mobile phone card to send programs and manage LED display screen. The control system is mainly used in taxi LED display, bus LED display, Chinese sports lottery, Fucaimen LED display, weather station LED display and other systems. In this category, domestic professional cards include: GS9020 series control card (with loading area of 256X32 points), GS7020 control card (with loading area of 640X64) and super wireless control card GS20 13A card (with loading area of 3072X 128 points); Inserting a mobile phone card into each control card will generate internet traffic charges every month. Generally, the monthly flow of 3 ~ 10 yuan is enough for an advertising LED display.

Radio frequency control card adopts radio frequency wireless communication technology. The radio frequency wireless module is added to the ordinary LED control card, and the wireless LED module is added to the computer to realize the radio frequency communication between the computer and the control card. Advantages: no extra cost, compatible with most serial LED control cards on the market! Disadvantages: the transmission distance is limited, mainly controlled in a small range.

The infrared remote control on-demand control card controls the display by inputting in advance and then switching on-demand through the remote controller or key module. Usually used in road management, police and law enforcement vehicles. Advantages: no extra cost, strong compatibility, and people can switch content in the car at will. Disadvantages: simple pre-input mode and limited remote control distance.

LED short message control card is a kind of LED display control card, which changes the displayed program content by sending short messages to the LED display control system. Mainly based on SMS, or through GPRS network to modify the content of the display screen, such applications will be more and more! Advantages: wireless short message sending can modify the display content anytime and anywhere. Disadvantages: SMS charges will be charged for each SMS command.