Method supporting limited irregular space positioning

The invention aims to provide a method for determining a specific target object in limited irregular functional space. Equipment, systems or schemes realized according to the method can satisfy a large number of general positioning requirements. The method considers that the limited irregular space is basically closed, such as typical scenes of a household bedroom and functional unit space therein, and whether a specific object exists in the limited irregular space or not needs to be determined. The positioning requirement considered by the method is different from the common positioning requirement. The common positioning requirement is to establish a three-dimensional or two-dimensional position describing reference system by using a certain physical point in the space as a reference point. The positioning requirement considered by the method is to determine whether the positioned object exists in a group of space units or not, that is, the position of the positioned object is described as the position of a