地下管道的多位置惯性调整方法使用基于单轴FOG/MIMU的数据回溯
Jiachen Liu1, Lu Wang1, Yutong Zu1
1Faculty of Engineering Technology, China University of Geosciences (Beijing), Beijing 100083, China.
Micromachines
|September 28, 2024
概括
本研究引入了一种新的多位置初始对齐方法,用于使用光纤陀螺仪 (FOG) 和微电机械惯性测量单元 (MIMU) 数据准确地下管道轨迹映射. 该方法显著提高了3D管道定位精度.
科学领域:
- 地理学工程 工程地质学
- 惯性导航系统 惯性导航系统
- 地质物理测量 测量地质物理测量
背景情况:
- 准确的地下管道3D轨迹绘制对于基础设施管理至关重要.
- 传统的惯性测量方法依赖于初始态度的确定,常常受到复杂的城市磁场的阻碍.
- 不准确的初始态度导致管道轨迹重建中的重大错误.
研究的目的:
- 开发一种新的多位置初始对齐方法,以提高地下管道惯性测量的准确性.
- 在具有挑战性的环境中克服传统基于磁力计的初始态度决定的局限性.
- 为了提高地下管道3D轨迹数据的精度.
主要方法:
- 提出了一种使用单轴光纤陀螺仪 (FOG) 和三轴微电机械惯性测量单元 (MIMU) 的多位置初始对齐方法.
- 根据管道测量仪器的三点支结构设计了一个三位对齐方案.
- 开发了一种初始对齐算法,用于粗 (FOG) 和细 (FOG/MIMU) 的对齐,采用数据回溯.
主要成果:
- 实验验证证明了高精度,斜率和滚角误差低于0.05°.
- 亚齐木斯角误差被发现小于0.2°.
- 拟议的方法显著提高了地下管道3D轨迹的精度.
结论:
- 新的多位置初始对齐方法有效地解决了复杂磁环境中与传统方法相关的不准确性.
- 将FOG和MIMU数据与数据回溯算法的结合使用,为精确的初始态度确定提供了强大的解决方案.
- 这一进步为准确的3D绘图和地下管道基础设施管理提供了更可靠的方法.
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