Transport drones and their operation methods

To achieve the above objectives, the present invention minimizes noise through a hummingbird-model propeller design and addresses stability issues with gentle wing boundaries. A rear propeller system is introduced to fill empty spaces and control the drone's forward movement and direction. Additionally, it is equipped with ultrasonic sensors to detect the drone's surrounding environment, evaluate safe flight paths, and detect potential collisions to take appropriate measures. It utilizes GPS to predict precise landing locations and is designed to hook landing gear cables onto the tail fins to ensure a safe landing. Furthermore, it is designed to allow for safe battery and wing replacement. An automated system is introduced that utilizes a droid to safely load goods onto the drone and efficiently load items into parking lots. A drone-based unmanned delivery system is introduced that is more economical and efficient than towing a vehicle weighing over one ton for delivery. Through a network of ultrasonic sensors arranged in multiple directions, it detects the surrounding environment, evaluates safe flight paths, and adjusts the flight path if necessary. Equipped with autonomous driving capabilities, it supports the drone in flying safely without operator intervention, and encryption and security technologies are applied for secure data transmission between the communication module and the central control system.