The vehicle access blocking device and road blocking method using the same
height limit device and the method install height limit device
Real-time school zone smart safety lights system using piezoelectric sensors and infrared sensors
Black ice accident prevention system using reversible discoloration paint
Road black ice warning sign displayed on the road surface
Drone with Bird Strike Prevention Function by Birds and Insects
ICTBus stop safety fence and bus stop ICT integration device
AUTOMOUS SELF-POWERED SALT SPRAY DEVICE ANT THE CONTROLLING METHOD THEREOF