室内外定位中的空间粒度与空间尺度研究

Research on Spatial Granularity and Spatial Scale of Indoor and Outdoor Positioning

从满足用户定位需求的角度出发,本文对室内外定位中的空间粒度和空间尺度进行了研究。室内外定位中的空间粒度与用户进行导航定位的目的紧密相关,它规定了定位系统应该具备的定位精度。室内外定位的空间尺度决定了被定位目标的地理位置信息的抽象程度,同时也决定了定位过程中所采用的定位方案策略。通过采用空间粒度和空间尺度对用户定位需求进行分析,本文对基于不同定位系统的功能协同的泛在定位模式进行了探讨,并通过仿真实验对该模式进行了进一步的阐述,力求实现定位服务的泛在化。

In order to meet the positioning requirements of users, this paper researches on spatial granularity and spatial scale of indoor and outdoor positioning. It shows that the spatial granularity is closely related to the destination of positioning users, and it also specifies the positioning precision of positioning system used in the location-based service. Meanwhile, the level of abstraction of content of position information strongly depends on the spatial scale of indoor and outdoor positioning, which also indicates the way of how to choose the proper positioning solution. Through the analysis of positioning requirements of users, this paper proposes one ubiquitous positioning mode which is created on the basis of function cooperation of various positioning systems. In addition, the proposed mode is further interpreted by a simulated experiment which points the way to the ubiquitous service of future positioning solution.