UAV-based mapping of the Porgera mine

Leica UAV brings efficiency to environmental monitoring

Papua New Guinea, one of the most rural and unexplored places on the planet, challenges surveyors with its dense rainforest, swamps, steep valleys and mountains up to 4,500 meters to find new ways to create accurate measurements. To defy these difficulties, the experts are forced to search for new innovative solutions to obtain precise results and found their perfect match in the use of an Unmanned Aerial Vehicle (UAV).

当基准调查与设计时,Porgera矿山调查团队签订了专门从事澳大利亚北部昆士兰州的地形现场测量的专家,以在高地的Porgera山谷头部的隔离地面上绘制溢出地面,高度为2,2002,700 m,他们需要找到一种新的测量方法。由于捕获的数据将用于对矿山生成的转储站点的环境监视,因此准确性至关重要。

Mapping dangerous terrain with an UAV

空降摄影测量法调查矿山

在山体滑坡和地震很常见的区域,只有五天可供映射,基准调查和设计确定了空中调查是收集所需数据的最安全,最有效的方法。由于该公司在使用Leica Geosystems UAV方面需要更多的经验,因此它转向了一家在地理信息系统(GIS)超过20年的澳大利亚公司的空间技术,以提供无人机飞行员。在过去两年中,Flying Leica Geosystems无人机并在各种环境中收集数据,空间技术是挑战的。

在矿山周围捕获两个地点,Anjolek的380公顷和250公顷的Anawe,飞行员安东·范·威克(Anton Van Wyk)必须在飞行计划软件中仔细计划他的路线。面对几个挑战,例如直升机只能通过直升机才能到达陡峭和无法实现的地形,只有五天中的直升机可用的一个可用的挑战,而在早晨的极端天气和浓雾中的极端天气和下午连续降雨,将时间桶减少到时间桶中每天只有几个小时的调查。安东(Anton)的精确计划取决于Leica Geosystems无人机解决方案的耐用性和可靠性。

“ Leica Geosystems无人机提供了比Porgera矿山调查团队预期的更好的结果,即使在如此粗糙的地形中,” Benchmark Survey&Design的Wayne Storey说。“尽管矿山调查团队有一个事先飞行的任务,但该团队没有收到无人机用更高级传感器提供的数据的专家映射和处理。”

With 32 total flights at about 10 minutes each, Spatial Technologies collected 9,100 orthophotos at a 5 cm ground sampling distance. While Benchmark Survey & Design only need sub-metre accuracy for the project, Spatial Technologies was actually able to supply 10-20 cm accuracy with strategically placed controls in conjunction with the RTK on the UAV. The entire project was processed in about 96 hours to provide visual documentation of volume changes in the spill grounds.

不仅仅是卷

Combining the orthophotos from Leica Geosystems UAV with older data and point clouds of the site created by laser scanning technology, engineers and environmentalists on the project were enabled to go beyond just volume calculations. Together with the many forms of data collected, they can now see visible proof of vegetation changes and conduct slope analyses.

随着危险的地形唤起了测量师的危险条件,以前对测量值进行了很少的测量。借助更安全,更快的无人机调查,矿山调查团队现在可以更定期地监视,以更快地管理问题并在成为主要问题之前纠正问题。

Van Wyk说:“使用无人机的航空调查不仅可以比传统方法更快地完成,而且可以通过它可以携带的高级传感器进行调查,我们也可以获得同样的准确性,也可以获得相同的准确性。”“由于测量师也不必进入冒险的领域即可建立工具,因此无人机也使我们的工作更安全。”

When terrain creates obstacles on the ground, UAVs are able to overcome from above. Opening access to more and more areas, Leica Geosystems UAV solution is creating new opportunities across the globe.

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