Automatic charging device and charging method based on electric vehicle
Electric vehicle anti-falling system and safe downhill method
GRAPHENE COMPOSITE MATERIALS AND METHODS FOR PRODUCTION THEREOF
Protective device for landing of plant protection unmanned aerial vehicle
Target object moving platform for intelligent automobile test
Aquaculture sewage replacement treatment monitoring device
Preparation process and use device of disinfectant for livestock and poultry
Automobile engine damping seat with built-in stabilizing mechanism
Sharing scooter non-disconnection control system and sharing scooter main machine
Hoisting control method and device, electronic equipment and storage medium
Cabin wall attached material cleaning system and method
Locomotive operation control method, device and equipment and storage medium
Method, system and device for controlling crossing signal machine and electronic equipment