野外科考中移动终端自定义地图技术研究与应用
发布时间：2018-11-10 13:59
【摘要】：科研工作者在野外考察中经常使用移动智能终端进行数据采集、人员活动跟踪等工作。由于野外网络信号差,且地处偏远,部分区域会出现地图缺失和地图精度低的问题。为了补充低精度地区的地图数据,满足缺失地图区域的移动端离线使用需求,本文对自定义地图的数据获取、图库构建、离线存储等相关技术进行了研究,提出了移动终端自定义地图离线加载的解决方案。该方案首先使用开源软件Mobile Atlas Creator下载缺失区域地图,其次通过瓦片金字塔和瓦片系统规则构建地图瓦片图库,最后依据MBTiles规范进行离线地图瓦片存储和展示。基于该方案生成的系统可获取地图资源,创建自定义地图并提供离线功能,该系统不仅为地图缺失地区提供了高清地图,而且克服了海量数据在移动终端的存储难关,大幅提高了离线地图读取速度,为科考工作顺利开展提供重要地理信息。
[Abstract]:Researchers often use mobile intelligent terminals to collect data and track activities in the field. Because of the poor signal of field network and remote location, some areas will have the problems of missing map and low map precision. In order to supplement the map data of low-precision area and meet the need of mobile end off-line use in the missing map area, this paper studies some related technologies, such as data acquisition, map library construction, off-line storage and so on. The solution of mobile terminal custom map off-line loading is put forward. Firstly, the open source software Mobile Atlas Creator is used to download the missing area map. Secondly, the map tile library is constructed through the tile pyramid and the rules of tile system. Finally, the off-line map tile is stored and displayed according to the MBTiles specification. Based on this scheme, the system can obtain map resources, create custom map and provide off-line functions. The system not only provides high-definition map for map missing areas, but also overcomes the storage difficulties of mass data in mobile terminal. The speed of off-line map reading is greatly improved and important geographic information is provided for the smooth development of scientific research.
【作者单位】： 中国科学院大学;中国科学院计算机网络信息中心;
【基金】：国家自然科学基金(61361126011)
【分类号】：N8;TP311.56
，
本文编号：2322657
[Abstract]:Researchers often use mobile intelligent terminals to collect data and track activities in the field. Because of the poor signal of field network and remote location, some areas will have the problems of missing map and low map precision. In order to supplement the map data of low-precision area and meet the need of mobile end off-line use in the missing map area, this paper studies some related technologies, such as data acquisition, map library construction, off-line storage and so on. The solution of mobile terminal custom map off-line loading is put forward. Firstly, the open source software Mobile Atlas Creator is used to download the missing area map. Secondly, the map tile library is constructed through the tile pyramid and the rules of tile system. Finally, the off-line map tile is stored and displayed according to the MBTiles specification. Based on this scheme, the system can obtain map resources, create custom map and provide off-line functions. The system not only provides high-definition map for map missing areas, but also overcomes the storage difficulties of mass data in mobile terminal. The speed of off-line map reading is greatly improved and important geographic information is provided for the smooth development of scientific research.
【作者单位】： 中国科学院大学;中国科学院计算机网络信息中心;
【基金】：国家自然科学基金(61361126011)
【分类号】：N8;TP311.56
，
本文编号：2322657
本文链接：https://www.wllwen.com/kejilunwen/ruanjiangongchenglunwen/2322657.html
