| 摘要 |
PURPOSE: A frost protection system using a frost protection fan device is provided to reduce the disease and insect damage on crops by supplying high temperature wind. CONSTITUTION: A frost protection system comprises the following: a frost protection fan device(1500) including an electric wire insertion hole on one side, a blowing fan on the front side, and a motor on the rear side; a temperature sensor(2000) detecting the surrounding temperature of wind generated from the blowing fan; a temperature value comparison unit comparing the temperature detected from the temperature sensor before the operation of a driving motor and after the operation of the driving motor; a drive motor rotation number increasing unit increasing the RPM of the driving motor; a second temperature value comparison unit comparing the temperature detected from the temperature sensor before and after the increase of the RPM; a heater operation unit outputting an operation signal to a heater unit; a central controller(4000) including a central control unit for controlling the flow of signals on the temperature value comparison units, the drive motor rotation number increasing unit, and the heater operation unit; a wind speed sensor(5000) for detecting the wind speed of the blowing fan; and a rainfall sensor(6000) detecting the rainfall amount. |
