arXiv:2608.21699cs.RO2026-08

为微型飞行动物机器人植入类昆虫本体感知传感器,实现自主飞行。

Towards insect-like distributed proprioception in actuators and appendages for flapping-wing insect-scale aerial robots

论文配图:Towards insect-like distributed proprioception in actuators and appendages for flapping-wing insect-scale aerial robots
图 1 · 摘自论文原文
  • 将压电薄膜嵌入驱动器和舵轴,实现姿态角实时感知。
  • 实验显示振幅与俯仰角误差分别仅0.44°和2.44°,精度高。
  • 适合追求自主性、仿生设计的微型飞行机器人研究者。

当前微型扑翼飞行器虽具备类似昆虫的灵巧机动能力,但依赖外部光学追踪设备。本文提出两种嵌入式本体感知传感器:集成于驱动器的薄膜压电聚合物,用于监测拍打角度;集成于俯仰铰链的传感器,用于监测俯仰角。采用层叠制造工艺构建了尺寸无关的机械智能结构(传感器-执行器、传感器柔性件)。在微型扑翼机器人上的啁啾实验表明,在相关频率范围内,拍打角和俯仰角的均方根误差分别为0.44°和2.44°,实现精准跟踪。作为迈向机载自主应用的第一步,我们展示了两个具体应用:本体感知铰链可实现碰撞检测,降低损坏风险;本体感知执行器支持异步扑翼,可能提升适应性与效率。配备该传感器的微机器人可用于验证上述假设,进而优化扑翼飞行器性能。这类兼具生物启发性与高集成度的感知系统,有望推动微型飞行机器人与机器人物理学的发展。

原文摘要 · Abstract (English)

Modern flapping-wing insect-scale air vehicles display agility similar to that of their insect counterparts; however, these impressive maneuvers are only possible with off-board sensors like optical tracking cameras. In this manuscript, we introduce two embedded proprioceptive sensors for insect-scale aerial robots: thin film piezoelectric polymers integrated directly into a driving actuator and a pitching hinge which track stroke and pitch angle, respectively. We fabricate the aforementioned size-agnostic mechanically intelligent structures (sensor-actuator, sensor-flexure) using laminate stack fabrication methods. Chirp experiments with our sensors integrated into an insect-size flapping-wing robot show accurate tracking of stroke (RMSE = 0.44 deg) and pitch (RMSE = 2.44 deg) angles in the relevant frequency range. As the first step towards demonstrating the utility of these sensors for enabling numerous onboard autonomy applications, including closed-loop wingbeat control and sensor fusion with existing insect-scale sensor suites for more accurate proprioception and localization, we show one application for each sensor. The proprioceptive hinge enables collision detection, reducing the chance of permanent damage if the robot's wing collides with an object. The proprioceptive actuator enables asynchronous flapping, which is hypothesized to increase adaptability and efficiency in insects and robots alike. A microrobot equipped with our proprioceptive actuator allows us to test these hypotheses with potential for improving flapping aerial robot performance. We foresee proprioceptive sensors having an important role in progressing both the fields of insect-scale aerial robots and robo-physics due to the bio-inspired nature and high integration level of our sensors.

微型机器人本体感知压电材料

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