System and method for detecting air quality in building

The invention discloses a system and a method for detecting the air quality in a building. The system comprises an image recognition and navigation system, a data display and analysis system and a movable detection vehicle on which air quality collection equipment and a wireless transmission module are carried, wherein the image recognition and navigation system comprises a processing unit and a wide-angle camera; the processing unit is connected with a control main panel of the movable detection vehicle and is used for receiving images collected by the wide-angle camera, recognizing a pre-paved track after carrying out image preprocessing, generating a movement command and sending the movement command to the movable detection vehicle; the movable detection vehicle is used for moving according the preset track according to the movement command, obtaining air quality data in corresponding positions through the air quality collection equipment during a moving process and sending the airquality data to the data