基于开源GIS库的露天矿无人机数据Web客户端应用

Web Client Side Application of Open-source GIS Database for Drone Data

文中提出了一种基于Vue.js和开源WebGIS框架(Cesium和Leaflet)的露天矿无人机数据客户端应用系统。该系统能高效可视化无人机采集的高分辨率影像数据,支持大数据量场景下的局部动态更新,并在客户端提供便捷的三维测量功能。系统的核心模块包括可视化模块、动态更新模块和三维量算模块。可视化模块基于预处理的影像数据,利用Cesium构建高精度三维景观模型或由Leaflet呈现二维平面视图;动态更新模块采用CZML时间轴技术,实现对指定区域影像的增量更新;三维量算模块则在浏览器端测算目标物的距离、面积、体积等参数。实验验证了该系统的有效性,但在三维重建精度、大数据渲染效率和交互体验方面还存在一定的改进空间。

This paper proposes a client side application system for drone data in open-pit mines based on Vue.js and opensource WebGIS frameworks(Cesium and Leaflet).The system can efficiently visualize high-resolution image data collected by drones,support local dynamic updates in large data scenarios,and provide convenient 3D measurement functions on the client side.The core modules of the system include visualization module,dynamic update module and 3D measurement module.The visualization module uses Cesium to build a high-precision 3D landscape model or a two-dimensional plane view presented by Leaflet based on the preprocessed image data;the dynamic update module uses CZML timeline technology to achieve incremental updates to the image in the specified area;the 3D calculation module measures the distance,area,volume and other parameters of the target object on the browser side.Experiments have verified the effectiveness of the system,but there is still some room for improvement in 3D reconstruction accuracy,big data rendering efficiency and interactive experience.