US 12,125,386 B2
Road stud, road stud system, method for controlling road stud, and control program preliminary class
Susumu Oikawa, Yokohama (JP); Hiroyuki Nakatani, Gotenba (JP); and Kenichi Kitahama, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota Aichi-ken (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Nov. 17, 2022, as Appl. No. 17/988,852.
Claims priority of application No. 2021-191683 (JP), filed on Nov. 26, 2021.
Prior Publication US 2023/0169866 A1, Jun. 1, 2023
Int. Cl. G08G 1/16 (2006.01)
CPC G08G 1/166 (2013.01) [G08G 1/164 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A road stud system comprising:
a control system configured to control a plurality of road studs, wherein the control system comprises a group control apparatus that is connected to each of the plurality of road studs in such a way that the control system can perform radio communication with each of the plurality of road studs, the group control apparatus controlling the plurality of road studs based on fixed position information; and
a road stud comprising:
a terminal storage unit configured to store preset unique fixed position information;
a light emission unit configured to emit a preset light to surroundings;
a moving body detection unit configured to generate a detection signal indicating that a nearby moving body has been detected;
a radio communication unit configured to receive, based on the fixed position information, an instruction signal for an operation of the light emission unit from the control system and transmit the detection signal to the control system; and
a terminal control unit configured to control the light emission unit based on the instruction signal.