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arXiv 2002.09710cs.RO
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基于信息增益规划的四足机器人产业结构主动映射

Actively Mapping Industrial Structures with Information Gain-Based Planning on a Quadruped Robot

Oxford Robotics Institute, University of Oxford(牛津大学牛津机器人研究所)

Yiduo Wang, Milad Ramezani, Maurice Fallon

摘要:

在本文中,我们开发了一个在线主动测绘系统,使四足机器人自主调查大型物理结构。我们描述的感知,规划和控制模块需要扫描和重建感兴趣的对象,而不需要事先的模型。系统构建对象的体素表示,并根据重建本身和避免与环境的碰撞来迭代地确定下一个最佳视图(NBV)以扩展表示。通过计算在所感测的地形图上采样的一组候选扫描位置的预期信息增益以及到达这些候选者的成本,机器人决定用于进一步探索的NBV。机器人规划朝向NBV的最佳路径,避开障碍物和不可穿越的地形。在模拟和真实环境下的实验结果表明,我们的系统的能力和效率。最后,我们提出了一个完整的系统演示的真实机器人,ANYbotics ANYmal,自主重建建筑立面和工业结构。

英文摘要:

In this paper, we develop an online active mapping system to enable a quadruped robot to autonomously survey large physical structures. We describe the perception, planning and control modules needed to scan and reconstruct an object of interest, without requiring a prior model. The system builds a voxel representation of the object, and iteratively determines the Next-Best-View (NBV) to extend the representation, according to both the reconstruction itself and to avoid collisions with the environment. By computing the expected information gain of a set of candidate scan locations sampled on the as-sensed terrain map, as well as the cost of reaching these candidates, the robot decides the NBV for further exploration. The robot plans an optimal path towards the NBV, avoiding obstacles and un-traversable terrain. Experimental results on both simulated and real-world environments show the capability and efficiency of our system. Finally we present a full system demonstration on the real robot, the ANYbotics ANYmal, autonomously reconstructing a building facade and an industrial structure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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