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提出一种表达半球面方位关系的模型——最小边界扇区模型(MBS),将半球面上区域自上而下正投影到底面,且根据参考对象在底面的投影位置,将投影面划分为12个原子区域.根据研究区域占原子区域的个数等信息来刻画区域间方位关系,不但可表达出左右等方位关系,还可通过区域上点到中心的距离关系定性表达半球面上区域的高度关系等信息.给出MBS模型中可能存在的1932种情形.为进一步研究MBS模型下的推理及复合表的构造,给出此模型下的关系矩阵表示方法,通过此关系矩阵亦可方便推知原半球面上区域间的方位关系.
This paper presents a model of minimum boundary sector model (MBS) that expresses the azimuthal relation of the hemispherical surface. The area on the hemispherical surface is orthogonally projected from the top to the bottom. According to the projected position of the reference object on the bottom surface, the projection surface is divided into 12 atomic regions.According to the information such as the number of atomic regions in the study area and other information to characterize the relationship between regions, not only can express the left and right azimuths, but also through the distance from the point to the center of the region qualitative expression of the hemispherical region 1932 kinds of situations that may exist in MBS model are given.To further study the reasoning in MBS model and the construction of compound table, the relation matrix representation method in this model is given, and the relationship matrix can also be easily inferred The original hemispherical area of the relationship between the area.