The present invention relates to a method for controlling a plurality of indoor air-conditioning units, a controller and an air conditioner using the same, comprising: reading partition information on a division of an air-conditioning space and indoor unit arrangement information of a plurality of air-conditioning indoor units arranged according to the division, and In order to detect the activity and air condition, a plurality of air conditioning indoor units are divided into labor and cooperate with each other according to the step of detecting detection information using sensors installed in each division, and based on the division information and arrangement information, and are common with a unique area. Disclosed is an air conditioning indoor unit control method for controlling air in a space divided into areas to be conditioned.
According to the present invention, optimized air conditioning according to the position of the human body in the air conditioning space is possible through division of labor and cooperative air conditioning between indoor units.