US 12,462,681 B2
Detection of malfunctions of the switching state detection of light signal systems
Markus Gressmann, Boblingen (DE); Robert Lutz, Stuttgart (DE); and Frank Lindner, Ulm (DE)
Assigned to Robert Bosch GmbH, Stuttgart-Feuerbach (DE); and Daimler AG, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart-Feuerbach (DE); and Daimler AG, Stuttgart (DE)
Filed on Sep. 20, 2021, as Appl. No. 17/479,264.
Application 17/479,264 is a continuation of application No. PCT/EP2020/057305, filed on Mar. 17, 2020.
Claims priority of application No. 10 2019 106 844.4 (DE), filed on Mar. 18, 2019.
Prior Publication US 2022/0004786 A1, Jan. 6, 2022
Int. Cl. G08G 1/0962 (2006.01); G06V 10/98 (2022.01); G06V 20/58 (2022.01); G08G 1/095 (2006.01)
CPC G08G 1/09623 (2013.01) [G06V 10/98 (2022.01); G06V 20/584 (2022.01); G08G 1/095 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for evaluating a functionality of a camera arrangement including a pair of cameras using a control unit, comprising:
determining a first switching state of a light signal system based on a first measurement data from a first camera of the pair of cameras;
determining a second switching state of the light signal system based on a second measurement data from a second camera of the pair of cameras, the second measurement data from the second camera is recorded at a later point in time than the first measurement data from the first camera, the first switching state and/or the second switching state are determined by determining a position of a signal transmitter within a housing of the light signal system, a color of the signal transmitter, and/or a shape of the signal transmitter; and
evaluating the functionality of the camera arrangement based on the first switching state and the second switching state, a malfunction of the camera arrangement is determined in the evaluating step if identical positions and different colors of the signal transmitter are determined on the basis of the first measurement data and the second measurement data.