Water life-saving satellite positioning alarm method and terminal, and life jacket
Double-line side-by-side opposite-pull boat moving method
Construction precision control method for cylinder pin hole type leg
Safe energy-saving bilateral elevator and using method thereof
Safe energy-saving elevator and application method thereof
Elevator control system based on Internet of Things technology
Method for controlling unmanned aerial vehicle to stay on water surface
Network rail tunnel comprehensive detection device and method based on edge calculation and big data
Network rail tunnel comprehensive detection system and method capable of active detection
Gate-free parking lot accurate management and control device
Vehicle-to-vehicle charging system and method and electric vehicle
Network rail tunnel comprehensive detection system and method based on big data
Comprehensive detection system for network rail tunnel with the same time, air and section
Accurate management and control method for gate-free parking lot
Network rail tunnel comprehensive detection system and method thereof