Design of Rescue Drone Grips

To address the challenges of low material delivery efficiency and high operational risk in forest fire rescue operations, this paper proposes a precision material delivery system equipped with a UAV gripper mechanism. By integrating high-precision positioning with adaptive delivery control technology, the system enables emergency rescue operations in complex fire environments. The system utilizes the Pixhawk 2.4.8 flight controller as its core; by presetting three-dimensional flight point paths via the QGroundControl ground station, it achieves autonomous path planning and flight. Through the integration of a multi-source module—comprising a PX4Flow optical flow sensor and a sonar sensor—with a PID algorithm, the system achieves wind-resistant hovering and stable flight attitude above fire zones. Leveraging the designed UAV gripper in conjunction with a high-precision GPS module, the system enables precise material delivery at high altitudes. Experimental results demonstrate that the precision of the UAV material delivery system equipped with this gripper reaches 95%, thereby improving the efficiency of rapid and accurate material delivery in forest fire rescue operations.