对空中进行测量和检查
无人机——无人机现在使用in many areas of surveying. This is not restricted to land surveys, but also includes open-cast mines, landfill sites and roads or buildings. In addition, these versatile little aircraft open up entirely new possibilities for the more efficient management of major construction sites. Before building work has even started, they can deliver a fast, low-cost aerial overview of local conditions and generate accurate and meaningful data for calculation and quotation purposes. Once building work has started, aerial photographs taken by UAVs provide regular documentary records of interim steps. Besides making it much easier to monitor construction progress, it also facilitates the control of internal processes. Once construction work has been completed, it is no problem for a UAV to carry out an inspection of the building and provide evidence that the work has been carried out as agreed and expedite final acceptance.
瑞士电力公司AXPO正在使用UAV AIBOT X6来调查和记录Glarus Alps地区的主要建筑项目“ Linthal 2015”。在最初的一步中，从空气中调查了整个Linthal Valley，并产生了最高一厘米（0.4英寸）的点云。现在，该数据将构成计划施工过程后续步骤的基础。
瑞士电力公司AXPO正在Glarus的广州建造一个新的地下抽水储存厂（该国最大的）。将来，该工厂将保证向瑞士东北部和中部的未来电力供应。该计划是为了使工厂从Limmernsee湖中抽水回到Muttsee湖 - 海拔630米（2,070英尺）的高度差异 - 在需要时，它可以在需要时再次发电。这个大规模项目涉及约18.5亿美元（17亿欧元）的投资成本，预计将在五年中完成最多的工作，将在各种建筑地点雇用多达500名员工。该工厂应在2016年初开始发电。
快速，灵活的数据收集
必须去除数十万立方米的土壤和岩石，以建造泵储存厂的隧道和洞穴。大部分这些变价局将通过缆车将其运送到Muttenalp山，并用于建造大坝，该大坝长度超过一公里，高度为36米（118英尺）。其余材料将存放在现有的Limmern大坝前。2014年10月，AXPO首次使用AIBOT X6来调查该区域，这被称为Limmerntobel惰性物质处理地点。由于周围的山脉阻止了卫星信号接收，因此飞机是手动飞行的，没有GPS导航。在飞行过程中以垂直角度拍摄地形的照片，以创建60％至90％重叠的处置地点的高分辨率图像。在飞行前，将14个地面控制点均匀地绘制在被调查区域的七个角落约50至80米（160至260英尺）的距离，以进行图像的地理参考。“这是Aibot X6首次部署在2,000米（6,562英尺）的高度，但稀有气氛对其飞行特征没有不利影响，”飞行员Robert Lautenschlager解释说。
The 50,000 square metres (12.5 acres) of land was surveyed in two flights lasting ten minutes each. Agisoft photogrammetry software was used to process the data collected and a precise point cloud with an accuracy of up to one centimetre (0.4 inch) was generated. The whole evaluation processed lasted about 120 minutes. The point cloud was then integrated in the local coordinate system of the construction site, enabling Axpo’s surveyors to calculate the volume of the deposited material.
以前使用悬挂直升机的外部拍摄系统创建了处置地点的定期摄影记录。不仅可以使用AIBOT X6在短时间内记录高精度地理数据，而且还可以创建施工工作当前状态的完整和无缝文档。在任何给定的时刻，无人机都可以使承包商立即概述建筑物的发展方式，从而帮助他们更好地计划和控制流程。
测量和检查的结合
The use of UAVs means that surveying and inspecting tasks can now be combined more and more frequently. The Axpo example is a perfect illustration of this: in future, the company intends to use the Aibot X6 not only for the creation of digital models of terrain for planning and building power plants, but also for vital inspection tasks. It will be possible to fly over existing dams and take photographs that will allow the condition of the concrete surfaces on the airside and waterside of the dam to be assessed in detail. In this case, the hexacopter will again be fitted with a digital camera and flown to locations where it will take high-resolution pictures of all critical areas, thus enabling even the smallest cracks and other anomalies to be detected.
AIBOT X6也可用于检查电塔。Hexacopter在这里提供了许多优势，例如在发生故障或缺陷的情况下，部署的灵活性和可用性。由于检查是由遥控飞机执行的，因此它比直升机或陡峭的飞机的检查也更安全，更便宜，因为甚至没有必要事先关闭电流。将来，AXPO还将依靠环境部门的无人空降帮助，在那里，无人机将用于为剩余水实验的一部分拍摄山流的照片。
Written by Friederike Nielsen and Robert Lautenschlager
