Method, device and system for monitoring lock shaft fault of bogie
Single-column double-point inward-opening type invisible safety door
Vehicle safety driving waning device based on dangerous goods transporting vehicle identification
Automobile sun shield for controlling secure startup of automobile through retina identification
Automobile safe starting system based on retina identification technique
Safety door opening early warning device used after automobile is parked
Automobile accelerator pedal mistaken stepping safety braking system and braking method thereof