不同GPS定位方式在管道外检测中的应用研究  

Study on the Application of Different GPS Positioning Methods in Pipeline External Detection

作　　者：王超 黄锐 尹航 李正敏 WANG Chao;HUANG Rui;YIN Hang;LI Zheng-min

机构地区：[1]中国石油天然气管道科学研究院有限公司,河北廊坊065000 [2]中油国际管道有限公司,北京100000

出　　处：《有色设备》2021年第5期108-112,共5页Nonferrous Metallurgical Equipment

摘　　要：管道外检测是管道完整性工作的重要组成部分,作业时需要对管道特征点的位置信息进行采集。通过使用手持GPS、单基站RTK、CORS三种定位方式对某天然气管道的路由进行测量,并设置部分点使用全站仪进行误差检验,表明普通手持GPS定位精度一般,坐标重现性较差;单基站RTK可以实现相对精确的定位,但效率较低;CORS定位技术效率高、覆盖范围广、可以实现高精度的定位。随着测量技术的进步及相关规范的要求,借助CORS技术对管道实现大范围、高精度的定位是必然趋势。Pipeline external detection is an important part of pipeline integrity management and it requires the collection of location information of featured points on the pipeline during detection.The routing of a natural gas pipeline is detected with portable GPS,single base station RTK and CORS.Some of the points are subject to deviation verification with total station.It shows the unsatisfactory positioning accuracy and coordinate repeatability of common portable GPS.Single base station RTK can achieve relatively accurate positioning,but with low efficiency.High-precision positioning can be obtained by using CORS positioning technology with its high efficiency and wide coverage.With the development of surveying technology and the requirements of relevant specifications,it is an inevitable trend to use CORS technology to achieve large coverage and high-precision positioning of pipelines.

关 键 词：手持GPS 单基站RTK CORS 埋地管道定位测量 

分 类 号：TE973[石油与天然气工程—石油机械设备]