惯性定位仪检校场管径中心基准三维坐标获取方法的探讨  

Discussion on Three Dimensional Coordinate Acquisition Method of Pipe Diameter Center Datum in Inertial Positioning Instrument Calibration Field

作　　者：程宝岩 王彤 CHENG Bao-yan;WANG Tong(Shanghai Mingchuan surveying and Mapping Technology Co.,Ltd.,Shanghai 201199,China;Shanghai Shinan Electric Power Group Co.,Ltd.,Shanghai 201199,China)

机构地区：[1]上海茗川测绘技术有限公司,上海201199 [2]上海市南电力集团有限公司,上海201199

出　　处：《现代测绘》2022年第3期20-24,共5页Modern Surveying and Mapping

摘　　要：随着城市建设步伐的加快,对城市精细化管理工作提出了更高要求,尤其是大量处于城市地下的非开挖管线的精确位置管控。惯性定位仪的出现为地下非开挖管线三维姿态高精度测量提供了技术支撑,但与之匹配的定位仪设备检定和校准却较少涉及。依托本公司新建的惯性定位仪校准场地利用全站仪极坐标法、激光三维扫描仪法直接测绘得管壁三维坐标,使用三维软件间接获取管径中心三维坐标,最后利用间接获得的管径中心三维坐标与陀螺惯性定位仪直接测得管径中心三维坐标对比,验证全站仪极坐标法间接获取的管径三维坐标的可靠性。探讨非开挖管线管径中心坐标真值的获取方法,为类似设备校准比对提供参考借鉴。With the acceleration of urban construction,higher requirements are put forward for the fine management of the city,especially for the precise position control of a large number of trenchless pipelines under the city.The appearance of the inertial locator provides technical support for the high-precision measurement of the three-dimensional posture measurement of underground trenchless pipelines,but the verification and calibration of the matching equipment is less involved.Based on the new inertial positioning instrument calibration site of our company,this paper uses the total station polar coordinate method and laser 3 D scanner method to obtain the three-dimensional coordinates of the pipe wall directly,and uses the three-dimensional software to obtain the three-dimensional coordinates of the pipe diameter center indirectly.Finally,the obtained three-dimensional coordinates of the pipe diameter center are compared with the three-dimensional coordinates of the pipe diameter center mapped by the gyro inertial positioning instrument.Verify the reliability of the three-dimensional coordinate of pipe diameter indirectly obtained by polar coordinate method of total station.The verification results show that this paper discusses the method to obtain the true value of the center coordinate of the trenchless pipeline diameter,which provides a reference for the calibration and comparison of similar equipment.

关 键 词：惯性定位仪 检校场 管径中心 基准三维坐标 

分 类 号：TU990.3[建筑科学—市政工程]