Rail bar identifying and positioning method based on laser radar
Unmanned aerial vehicle logistics system with long cruise capability
Vertical lift type autorotorcraft without tail rotor for balancing reaction torque
Advertising board device based on unmanned aerial vehicle
Ground-effect take-off and landing autorotorcraft and flight mode
Aircraft wing box section self-adaptive fine adjustment mechanism and adjustment method
Unmanned aerial vehicle seeding system for pelleting seeds
Efficient spraying device based on unmanned aerial vehicle technology and operation method