Vehicle speed measurement method, device and system based on video and distance grid calibration
Vehicle passing detection method and system based on intelligent spikes and storable medium
Vehicle moving state identification system based on Internet of Vehicles
Vehicle machine device with mode switching function and control method
Toll station monitoring method, toll station monitor and toll station monitoring system
Start-stop control system of electric hydraulic excavator
Standby battery mounting structure, controller shell and vehicle
Ship lock gate anti-collision device and anti-collision method
Ship body supporting structure of double-layer train trestle
Safety protection method for electric vehicle charging facility
Road environment information acquisition method, client, server and system
Rail traffic tool and external power supply system and control method thereof
Power distribution monitoring method and device based on electric appliance box
Photovoltaic power generation local consumption method and device and electronic equipment