Road congestion state detection method and device, electronic equipment and road side unit
Frame structure convenient to mount and dismount and mounting method thereof
Material transfer device for water conservancy and hydropower engineering
Turnover plate device for construction elevator and using method of turnover plate device
Distributed airborne unmanned aerial vehicle comprehensive detection system and method
Expanding Window Fountain Code with Feedback for SVC Video Transmission in Internet of Vehicles
Automatic parking and charging method for vehicle and automatic parking system
Atmospheric monitoring unmanned aerial vehicle protection device
Composite beam electromagnetic vibration isolation frame structure and mounting method thereof