Patent ID: 11869349
Assignee: KOITO ELECTRIC INDUSTRIES, LTD.
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. A traffic light installed on a route of a vehicle running on a basis of an operation diagram, comprising:
a signal lamp; and
a signal control device that includes
an acquisition unit that acquires, from a wireless base station, vehicle information including the operation diagram and a current position of the vehicle, the vehicle information being transmitted from the vehicle, the wireless base station receiving the vehicle information on an upstream side of a traveling direction of the vehicle relative to the traffic light,
a determination unit that calculates, on a basis of the vehicle information acquired by the acquisition unit, an estimated time at which the vehicle arrives at the traffic light, and determines whether or not the estimated time is delayed from a scheduled time, and
a signal generation unit generates, where it is determined that the estimated time is delayed from the scheduled time, a control signal for controlling the signal lamp such that the signal lamp turns a light color in which the vehicle is capable of passing through the traffic light.