Automobile door-opening early warning and collision preventing device
System and method for realizing airport pickup and taxi taking service in networked taxi renting
Manufacturing method of intelligent car outer protecting safety bag
System and method for estimating taxi fee in networked taxi renting system
System and method for sending a taxi by using favorites in networked taxi renting
Method and system for booking taxi for others in networked taxi renting system
Load change adaptive steel wire rope traction lifting system
Safe driving auxiliary system and safe driving auxiliary method for driver
Public transportation electronic station board system and method
Wheel rim drive structure and torque real-time detection method thereof
Slide rod type lightweight four-rotor unmanned aerial vehicle
Manufacturing and mounting method of container ship guide frame
Step chain idler wheel provided with protective covers