Method for automatically switching internal circulation and external circulation of air conditioner

The invention relates to the technical field of vehicle ventilation, in particular to a method for automatically switching internal and external circulation of an air conditioner. Judging based on the real-time condition data of the surrounding environment of the vehicle to obtain a data judgment result; generating a control operation command and a control operation command based on the data judgment result; controlling a circulation mode and a vehicle window switch to perform switching operation based on the control operation command; according to the method, real-time condition data around the vehicle is obtained by detecting the environment around the vehicle and the air from the air inlet of the vehicle, judgment is performed based on the real-time condition data around the vehicle and the preset threshold value, the actual condition of the vehicle is detected, and if the data judgment result is that the preset threshold value range is exceeded, the alarm prompt is given out. And if yes, the control circu