DEVICE FOR TRANSMITTING DISPLAY DATA OF ELECTRONIC DISPLAY BOARD USING POWER LINE COMMUNICATION

摘要

PURPOSE: A device for transmitting display data of an electronic display board using power line communication is provided to convert display data of an electronic display board into a high frequency, and to transmit the high frequency to a low frequency signal used as power, without a wire by using a power line, thereby immediately controlling a screen display through the power line. CONSTITUTION: A data transmission terminal(10) is connected to a power line(300), and converts a display data signal of an electronic display board(100) edited from a computer(200) into a high frequency data signal of the power line(300), then synthesizes the high frequency data signal with a low frequency signal to transmit the signal to the electronic display board(100). A data receiving terminal(20) is connected to the power line(300), and detects the high frequency data signal from the low frequency signal of the power line(300), then converts the high frequency data signal into a format appropriate for screen display of the electronic display board(100).