1 1 an automated unmanned lodging system which has one parking space per room
1 1-cell type traffic light device using multi-color LED
1 PARKING LOT MANAGEMENT SYSTEM AND METHOD USING OMNIDIRECTIONAL CAMERA
2 LED Street lamp having secondary traffic accident prevention system
2 LED Street lamp having secondary traffic accident prevention system
2 METHOD FOR PREVENTING SECONDARY ACCIDENT ON HIGHWAY AND SERVER PERFORMING THE SAME
2 METHOD OF FACILITATING FOR SIMULTANEOUS USE OF VEHICLE AND SERVER USING THE SAME
2-SAT Method of deciding one-way roads based on 2-SAT in smart cities
2 Smart streetlight for a secondary accident prevention
2 TRAFFIC ACCIDENT OCCURRENCE GUIDE AND SECONDARY ACCIDENT PREVENTION DEVICE
2 TRAFFIC ACCIDENT OCCURRENCE GUIDE AND SECONDARY ACCIDENT PREVENTION DEVICE