Databases of move objects are important for air traffic control,ground traffic,and battlefield configurations.We introduce the(historical and spatial)range close-pair query for moving objects an important problem for such databases.The purpose of a range close-pair query for moving objects is to find pairs of objects that were closer than ∈during time interval I and winthin spatial range R,where ∈,I and R are user-specified parameters.
动作物体的数据库对空中交通管制,土地的交通和战场结构是重要的.因为移动为如此的数据库反对一个重要的问题,我们介绍范围结束-双的疑问.移动物体的范围结束-双疑问的目的将找在第一时间间隔和 ∈、我是使用者指定的叁数的空间的范围 R 期间比∈靠近的物体的双.