在车辆优化调度系统中需要存储大量的最短路径运行轨迹线,每条运行轨迹又是由数千计的GPS坐标节点组成,不能像保存某个点的坐标将其经纬直接保存在数据库中,这样会导致数据库资源占用大,数据冗余大,检索耗时长。要将车辆运行轨迹其保存在数据库中,必须将其压缩。基于差值GPS坐标路径存储设计能有效的解决以上问题。 In the vehicle optimization scheduling system need to store a large number of shortest path trajectory, each trajectory is thousands of GPS coordinate nodes, can not save the coordinates of a point latitude and longitude directly stored in the database, so Will lead to a large database resource consumption, data redundancy, retrieval time-consuming. To keep track of the vehicle in the database, it must be compressed. Based on the difference GPS coordinates path storage design can effectively solve the above problems.