面向位置服务的室内外统一空间基准转换

随着智慧城市建设的不断推进,对位置服务的需求已经由室外拓展至室内空间,并对室内外一体化服务提出更高要求。由于室内空间范围相对较小且对几何信息表达精度要求较高,因此,通常采用独立的平面或三维直角坐标系作为空间基准,从而造成室内与室外以及不同建筑室内空间基准的差异,影响室内外空间信息的一体化表达与应用。为此,文中在系统分析室内外空间基准复杂多样特点的基础上,建立室内外统一空间基准转换框架,研究适用于转换框架内不同转换关系的坐标转换模型,为今后开展室内外统一空间基准转换奠定模型与方法基础。

The indoor and outdoor unified spatial datum transformation for LBS

With the development of smart city construction,people’s demand for LBS has expanded from outdoor to indoor space,and put forward higher requirements for indoor and outdoor integration service.Because the indoor space is relatively small and precision of geometric information expression is higher,thus,the independent plane or three-dimensional rectangular coordinate system is usually used as the spatial datum for indoor space,causes the spatial datum difference between indoor and outdoor as well as different building’s indoor spaces,and affects the integrated expression and application of indoor and outdoor spatial information.Therefore,based on the systematic analysis of the complex and diverse characteristics of indoor and outdoor spatial datum,this paper establishs an indoor and outdoor unified space datum conversion framework,studies the coordinate conversion models applicable to different types of conversion relations in the conversion framework,which lays the model and method foundation for the future development of indoor and outdoor unified spatial datum conversion.