A new spiny drone to observe tree canopies while perched on branches.
HEDGEHOG, an aerial vehicle integrating High-friction origami spinEs for Drone perchinG on treE brancHes for envirOnmental monitorinG.
The collection of environmental and biodiversity data is essential to manage, preserve and restore forests, but this task remains challenging due to the inaccessibility of these ecosystems. Drones can reach these high and remote areas, yet the limited flight time restricts the data collection to short time periods. In addition, the sound of the propellers can cause a vigilant or even fearful response for some wildlife, possibly scaring the animal away. With a protective cage and multiple spines, HEDGEHOG can safely reach and perch on branches. At rest, the propellers shut down to reduce power consumption and noise, allowing longer and less intrusive data collection. The passive perching mechanism is based on origami spines that, once in contact with the surface of a branch, create sufficient friction to support the weight of the hanging platform. Soft design allows the spines to adapt to branches of different shapes, sizes, and inclinations. After successful perching, the drone can take off as the spine releases from the branch once the load is removed.
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