Patent ID: 11935406
Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
Field: Control (Instruments)
Classification: CPC G  H  Y | IPC G  H

Claim 5:
6. The traffic signal system according to claim 4, wherein
in the moving status,
the communication unit receives an arrival message from the vehicle,
when the traffic signal in the traveling direction of the vehicle is a green signal, the communication unit transmits an arrival response message and a moving status message to the vehicle,
the communication unit receives the moving status response message and the pilot signal for positioning from the vehicle,
the processor estimates the position and the moving direction of the vehicle using the pilot signal and the communication unit transmits the vehicle entry message to a signal light of the next intersection, and
the processor localizes the vehicle using the pilot signal, the moving speed and the moving direction of the vehicle and the communication unit transmits a vehicle position message for the position of the vehicle to the vehicle.