Display Board System Device for Controlling Snow Melting

A road display board system device capable of snow melting control, comprising:

• a detection sensor configured to detect rain and/or snow;
• a humidity sensor configured to measure a humidity of air;
• a first temperature sensor configured to measure a temperature of the air;
• a second temperature sensor configured to measure a temperature of a road surface;
• a dew point temperature calculator configured to calculate a dew point temperature of the air by matching the humidity of the air and the temperature of the air with a dew point calculation table;
• a danger time point estimator configured to estimate, as an icing caution time point, a time point when a temperature of the air measured while the air temperature is decreasing reaches a preset temperature, and estimate, as an icing time point, a time point when the temperature of the road surface reaches 0° C. or less while rain and/or snow has been detected or a time point when the temperature of the road surface reaches the dew point temperature or less while the dew point temperature of the air is 0° C. or less;
• a display configured to display a driving caution guide from the icing caution time point;
• and
• a heat supply controller configured to supply heat to the road surface from the icing time point.