US 12,307,891 B2
Method and system for automatically determining a display status of a traffic signal installation
Felix Modes, Erding (DE); and Oliver Wick, Hohenkammer (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/921,419
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Apr. 26, 2021, PCT No. PCT/EP2021/060872
§ 371(c)(1), (2) Date Oct. 26, 2022,
PCT Pub. No. WO2021/219571, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 10 2020 111 861.9 (DE), filed on Apr. 30, 2020.
Prior Publication US 2023/0162604 A1, May 25, 2023
Int. Cl. G08G 1/0967 (2006.01); G06V 20/58 (2022.01)
CPC G08G 1/096725 (2013.01) [G06V 20/584 (2022.01); G08G 1/096783 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A computer implemented method for automatically determining a display status of a traffic signal installation, the method comprising the steps of:
recognizing, with one or more sensors of a vehicle, a traffic signal installation in vehicle surroundings of the vehicle, including a signal generator structure of the traffic signal installation;
acquiring, with the one or more sensors of the vehicle, an electromagnetic signal originating from the traffic signal installation;
recognizing, with one or more evaluation units of the vehicle, intensity variations over time of the acquired signal, wherein the intensity variations of the acquired signal take place at one or more frequencies in a frequency range that cannot be resolved by a human eye;
determining, with the one or more evaluation units of the vehicle, a display status of the traffic signal installation, wherein the determination is carried out in dependence on the recognized intensity variations at the one or more frequencies in the frequency range that cannot be resolved by the human eye and on an origin location of the acquired signal with respect to a position of the origin location on the signal generator structure.