移动端地下管线增强现实系统设计

Design of mobile underground pipeline augmented reality system

针对传统地下管线信息系统存在的查看管线空间感不足、管线施工决策不灵活、对本地软件程序依赖性高的问题,设计了一个基于移动端的地下管线增强现实系统。为实现移动端增强现实管线建模功能,利用圆参数方程结合标架技术的方法对管线自动化三维建模,并通过高精度定位来加载附近管线数据;然后,设计了一种视觉与多传感器融合的方法,实现混合跟踪注册;最终,基于阿尔·吉斯(AR.js)技术编写代码实现了系统的整体功能。实验表明,系统三维模型渲染流畅,位姿估计误差小,在查看地下管线作业中具有直观准确、便捷灵活、运行环境适应性强的特点,在智慧城市推进工作中,为管线信息的智能化管理,提供了稳定可靠实时交互可视化的系统方案。

Aiming at the problems of the traditional underground pipeline information system, such as insufficient sense of space for viewing pipelines, inflexible pipeline construction decision-making, and high dependence on local software programs,a mobile-based augmented reality system for underground pipelines is designed. In order to realize the mobile-end augmented reality pipeline modeling function, the method of circle parameter equation combined with frame technology is used to automate the three-dimensional modeling of the pipeline, and the nearby pipeline data is loaded through high-precision positioning;then a vision and multi-sensor fusion is designed. The method realizes hybrid tracking registration;finally, the code is written based on AR.js technology to realize the overall function of the system. Experiments show that the 3D model of the system renders smoothly,the pose estimation error is small, and it is intuitive and accurate, convenient and flexible, and adaptable to the operating environment in viewing underground pipeline operations. It is the intelligent management of pipeline information in the promotion of smart cities. A stable and reliable real-time interactive visualization system solution is provided.