South Korean researchers at Seoul National University of Science and Technology have introduced a cutting-edge transport drone featuring multiple flexible rotors that automatically adjust to maintain flight stability.
The prototype, described as a “flying shopping cart,” is engineered to transport goods across uneven terrain, such as stairs. Users guide the drone’s cargo platform using minimal force.
During demonstrations, the team displayed the drone’s capability to navigate stairs smoothly, thanks to an advanced centre of the mass estimation algorithm. According to Professor Lee Seung-jae, the drone employs a human-robot interaction technique that anticipates the operator’s intentions, facilitating smooth operation over complex surfaces.
Professor Lee emphasized that their primary goal extends beyond creating a mere aerial cart. The team aims to develop drones that consistently maintain horizontal stability, avoiding pitching and rolling. Dubbed “Palletrone,” this drone can transport up to three kilograms.
On October 10, 2024, a graduate student in Mechanical Design and Robot Engineering demonstrated the Palletrone navigating stairs at Seoul Tech.
Looking ahead, Lee’s team envisions applications for their technology in uncrewed “flying taxis” and mid-air drone refuelling, eliminating the need for ground-based battery changes.
While used for delivering goods, food, and medical supplies, the practicality of significantly enhancing battery size to extend payload and range remains a challenge.
