US 11,869,349 B2
Traffic control device and traffic light
Hiromitsu Kai, Shizuoka (JP); Kenji Sumi, Shizuoka (JP); Yuichi Hida, Shizuoka (JP); and Shinji Tatemoto, Shizuoka (JP)
Assigned to KOITO ELECTRIC INDUSTRIES, LTD., Shizuoka (JP)
Appl. No. 17/595,969
Filed by KOITO ELECTRIC INDUSTRIES, LTD., Shizuoka (JP)
PCT Filed Jul. 21, 2020, PCT No. PCT/JP2020/028262
§ 371(c)(1), (2) Date Nov. 30, 2021,
PCT Pub. No. WO2021/020232, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 2019-141533 (JP), filed on Jul. 31, 2019.
Prior Publication US 2022/0319315 A1, Oct. 6, 2022
Int. Cl. G08G 1/087 (2006.01); G08G 1/01 (2006.01); G08G 1/081 (2006.01); G08G 1/127 (2006.01)
CPC G08G 1/087 (2013.01) [G08G 1/0133 (2013.01); G08G 1/0145 (2013.01); G08G 1/081 (2013.01); G08G 1/127 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A traffic control device that controls a traffic light installed on a route of a vehicle running on a basis of an operation diagram, comprising:
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 of arrival at the traffic light, and determines whether or not the estimated time is delayed from a scheduled time; and
a signal generation unit that generates, where it is determined that the estimated time is delayed from the scheduled time, a control signal for causing the traffic light to execute signal control for preferentially causing the vehicle to pass therethrough.