LED SIGNBOARD HAVING ALARM FUNCTION

摘要

PURPOSE: An LED(Light Emitting Diode) signboard having an alarm function is provided to save a life when a fire breaks out by installing a temperature detecting sensor, a smoke detecting sensor, and a separate power unit within the LED signboard. CONSTITUTION: An input port transmits input data and operation power inputted from outside. An LED display unit(20) outputs letters and signs by selective flashing an LED(11) arranged on a surface thereof. A control unit is connected to the input port and the LED display unit(20) to operate the LED display unit(20) by the input data inputted through the input port and the operation power. A stand-by power device is connected to the control unit to supply the operation power to the control unit according to cutting off external power. A temperature sensor(50) detects the temperature of outside and converts the detected temperature value into an electric signal to transmit it to the control unit. A smoke detecting sensor(60) detects a smoke of outside and converts smoke information into an electric signal to transmit it to the control unit.