The present invention relates to a method of controlling the operation of a stall blowing fan by distinguishing an aging abnormality sign and a wind speed abnormality sign, and the present invention is a step in which an operation rate of a plurality of blower fans is input and a current value and a wind speed of the plurality of blower fans according to the operation rate. A step in which the value is measured, a normal signal is generated when the measured current value and wind speed value of the plurality of blower fans are within a preset normal range, and one of the measured current value and wind speed value of the blower fans is a preset normal range Steps in which an abnormal signal is generated when it deviates, and the cause of the abnormal signal is divided into an aging abnormal sign and a wind speed abnormal sign, and the current value of a plurality of blower fans is adjusted, and the cause of the aging sign and the wind speed sign disappears. When the current and wind speed values of the multiple blower fans return to within the preset normal range, abnormal signal generation and current value adjustment are stopped and the normal signal is regenerated. Consisting of steps, it is possible to clearly distinguish the signs of aging caused by the aging of the blower fan and the signs of abnormal wind speed caused by external natural wind, and it is possible to take measures according to the abnormal signs to reduce the risk of fire due to excessive current supply. It has the effect of reducing and keeping the house environment constant by sufficient ventilation and reducing unnecessary energy consumption.본 발명은 노화이상징후와 풍속이상징후를 구별하여 축사 송풍팬의 운전을 제어하는 방법에 관한 것으로서,본 발명은 복수 송풍팬들의 가동률이 입력되는 단계, 가동률에 따라 복수 송풍팬들의 전류값과 풍속값이 측정되는 단계, 측정된 복수 송풍팬들의 전류값과 풍속값이 기설정된 정상 범위 내이면 정상신호가 발생되는 단계, 측정된 복수 송풍팬들의 전류값과 풍속값 중 어느 하나가 기설정된 정상 범위를 벗어나면 이상신호가 발생되는 단계, 이상신호의 원인을 노화이상징후와 풍속이상징후로 구별하여 복수 송풍팬들의 전류값이 조정되는 단계 및 노화이상징후 및 풍속이상징후의 원인이 소멸되어 측정된 복수 송풍팬들의 전류값과 풍속값이 기설정된 정상 범위 내로
