Method for improving accuracy of geomagnetic parking stall detector
City expressway main and auxiliary road floating vehicle map matching method
Steel rope tension wheel type sliding testing device of mine hoisting machine
Road segment traffic state distinguishing method based on multi-source data
Vehicle positioning and reverse vehicle searching system and method
Parking space state detector with parking index analyzing function and method thereof
Balance-adjustable floating head sheave device used for multi-rope winding type lifter
Monitoring system and monitoring method for elevator braking slippage and traction wheel slippage
Elevator car accidental movement protection device and control method
Unintended car movement protection device, brake unit and control method of brake unit
Separable backrest type device for improving safety and comfort of two-wheeled vehicle
Voice interaction system for actively reducing noise of internal call and vehicle
Foot control anti-falling auxiliary device for two-wheeled vehicle
Shaft segment hoisting and anti-twisting device and shaft segment hoisting and anti-twisting system
Shaft segment hoisting anti-twisting device and shaft segment hoisting anti-twisting system
Venturi tube and automobile fuel steam desorption system