US 12,436,272 B2
Method and device for providing tracking data for recognizing the movement of persons and hands for controlling at least one function of a technical system, and sensor system
Alexandros Ninos, Tuebingen (DE); and Juergen Hasch, Stuttgart (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Oct. 5, 2022, as Appl. No. 17/938,235.
Claims priority of application No. 10 2021 211 743.0 (DE), filed on Oct. 18, 2021.
Prior Publication US 2023/0118390 A1, Apr. 20, 2023
Int. Cl. G01S 13/931 (2020.01); G01S 13/72 (2006.01)
CPC G01S 13/931 (2013.01) [G01S 13/72 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for providing personal tracking data for controlling at least one function of a technical system, the tracking data representing a profile of a position of at least one person, the method comprising the following steps:
reading in sensor data from an interface to a preprocessing device configured to preprocess raw data of two spaced-apart radar sensors having partially overlapping fields of view, the sensor data representing a point cloud that is generated by the preprocessing device and made up of point targets that are detected in detection surroundings using the radar sensors;
executing an estimation algorithm, using the sensor data, to generate at least one corrected position profile track of the position of the at least one person;
separating the at least one corrected position profile track into a body track and a hand track, using a cluster analysis algorithm;
applying the estimation algorithm to the hand track to generate a corrected hand track; and
generating the tracking data, using the at least one corrected position profile track and the corrected hand track; and
wherein in the separating step, two new clusters are generated, starting from an original cluster that is assigned to the corrected position profile track, a new cluster, of the two new clusters, which is situated closer to the radar sensors being assigned to the hand track, and a new cluster, of the two new clusters, which is situated farther from the radar sensors being assigned to the body track.