PPK技术在高海拔长输油气管线航测中的应用研究  

Research on the Application of PPK Technology in Aerial Photogrammetry of High-altitude Long-distance Oil and Gas Pipelines

作　　者：张方毅 张娜[1] ZHANG Fangyi;ZHANG Na(China Petroleum Pipeline Engineering Corporation,Langfang 065000,China)

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000

出　　处：《测绘与空间地理信息》2024年第2期54-57,共4页Geomatics & Spatial Information Technology

基　　金：中国石油天然气集团有限公司重点工程项目——陕京四线输气管道工程(S2010-19D)资助。

摘　　要：针对高海拔复杂地形地区,长输油气管线航空摄影测量布设像控难和通信数据链差导致的测图困难和精度低的问题,分析了基于PPK的高精度POS数据辅助空中三角测量的航线设计、像控选择、内外方位元获取等关键技术和影响航测精度的因素,并探讨了一种无人机结合PPK技术的航空摄影测量方法。结合某高海拔长输油气管道航测项目,在少控制无通信条件下,利用PPK技术辅助空三测量,航测成果满足石油行业长输油气管线1∶500测图精度要求,为油气管道线路选择、施工、运营维护以及地质灾害评估提供精确的基础地形数据,可以作为相似领域同等条件下的航测技术应用。Aiming at the problems of difficult mapping and low accuracy caused by the difficult photo control points layout of long-dis-tance oil and gas pipelines and poor communication data links in high-altitude and complex terrain areas,this paper analyzes the key technologies and factors that affect the accuracy of aerial photogrammetry,such as route design,photo control selection,acquisition of internal and external orientation elements based on PPK high-precision POS data assisted aerial triangulation,and discusses an aerial photogrammetry method of UAV combined with PPK technology.Combined with a high-altitude long-distance oil and gas pipeline aerial photogrammetry project,PPK technology is used to assist aerial triangulation under the condition of less control points and no communication.The aerial photogrammetry results meet the 1∶500 mapping accuracy requirements of long-distance oil and gas pipe-lines in the petroleum industry,and provide accurate basic topographic data for oil and gas pipeline route selection,construction,op-eration and maintenance,and geological disaster assessment.It can be used as an aerial photogrammetry technology in similar fields under the same conditions.

关 键 词：PPK技术 无人机航测 免像控 长输油气管线 精度分析 

分 类 号：P231[天文地球—摄影测量与遥感]