无人机与无人船在水环境综合治理中的应用

Application of unmanned aerial vehicles and unmanned ships in comprehensive management of water environment

本文针对传统水环境综合治理的前期基础测绘工作效率低、成本高等问题,选择无人机航摄测量与无人船和测深仪测量水深相结合的方法。研究结果表明,该方法成图效率高,成本低,外业工作量小。生产的数字高程模型(DEM)裁剪与拼接效果较好,数字线画图(DLG)成图精度平面达到了21.3 cm,高程精度达到了20.8 cm。能够满足水运工程测量技术要求。

This article proposed a method that combined unmanned aerial vehicle(UAV)aerial photography with water depth measurement by unmanned ships and depth finders to address the issues of low efficiency and high cost in the preliminary basic surveying and mapping work of traditional comprehensive management of the water environment.The research results indicate that this method has high mapping efficiency,low cost,and small field workload.The produced digital elevation model(DEM)has good cutting and splicing effects,with a mapping accuracy of digital line graphic(DLG)of 21.3 cm in the plane,and the elevation accuracy reaches 20.8 cm.Therefore,the model meets the technical requirements for surveying in water transportation engineering.