‘FlyingToolbox’ drones achieve sub-centimeter precision in mid-air tool exchange despite strong airflow.
Photo Credit: Nature(2025)
The ‘FlyingToolbox’ drone system demonstrates accurate tool swapping mid-air under strong downwash.
Flying manipulator robots have been used for inspection, maintenance, and rescue operations. Yet their precision in cooperative flight has remained limited. Now, researchers at Westlake University in China have demonstrated a breakthrough-the FlyingToolbox. This is a drone system capable of swapping tools mid-air with sub-centimeter accuracy. The system facilitates two micro-aerial vehicles to work together seamlessly. Here, one acts as a toolbox and the other as a manipulator drone, facilitating to overcoming of airflow disruptions that once made such coordination nearly impossible.
As per a Nature report, the researchers led by Westlake University's team designed the FlyingToolbox with onboard vision tracking, electromagnet-based docking, and a neural network that predicts and compensates for airflow interference in real time.
The system's accuracy was tested under downwash conditions reaching 13.18 metres per second, with air currents strong enough to displace typical drones during flight. Yet, the new setup maintained a remarkable docking precision of 0.80 ± 0.33 cm, significantly improving upon existing drone systems that usually reach only 6–8 cm accuracy.
The tests depicted that the manipulator drone can be a mount, used, and switched tools mid-air. Moreover, cutting a string with scissors before picking and placing objects using a gripper tool. In cooperative aerial robotics, the system's reliability and repeatability are significant innovations.
Studies mention that even if the experiments happened indoors, the system's robustness paves the path for outdoor use. This innovation may inspire future drone systems. As it is capable of battery replacement, part repair, and precision maintenance, especially in challenging environments.
This development is indicated as a milestone for aerial robotics, according to experts. In addition, the FlyingToolbox represents a remarkable move toward fully autonomous, multi-tool flying manipulators, expanding its edges to achieve safety and efficiency in real-world missions.
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