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针对传统的地质灾害危险性评估野外调查效率不高和采集数据的正确性较低的问题,提出采用天地图API(Android版)提供的地理信息服务接口、结合Android开发和SQLite数据库技术构建地质灾害危险性评估野外数据采集系统。采用天地图提供的数据服务,解决纸质地图比例尺固定和幅面大小限制的问题,实现野外底图不同级别缩放和无限制的底图范围;基于天地图的功能服务,实现实时定位、经济合理的线路规划以及调查点的分布;采用规范化的电子记录模式,解决室外纸质记录的随意性、室内入库的效率和准确性问题,实现数据的采集与编辑。应用测试表明,有效提高了评估工作效率和质量。
Aiming at the problem of traditional geohazard risk assessment of field investigation is not high and the accuracy of collected data is low, this paper proposes the use of the Geographic Information Service Interface provided by Tiandi Map API (Android) and the combination of Android development and SQLite database technology to construct geological disasters Risk assessment field data acquisition system. The data service provided by Tiandi map can solve the problem of the fixed scale of paper map and the limit of the size of the web page so as to realize the scaling of different scales and the unlimited base map range of the base map of the field. The functional service based on Tiandu map can realize the real-time positioning and the economic and reasonable Route planning and the distribution of investigation points. The standardized electronic record mode is adopted to solve the randomness of outdoor paper records, the efficiency and accuracy of indoor storage, and to collect and edit data. Application tests show that effectively improve the efficiency and quality assessment.