公开(公告)号：US20210011160A1

公开(公告)日：2021-01-14

申请号：US16604050

申请日：2018-04-10

Applicant: BEA SA

Inventor： GAUTIER RADERMECKER

IPC: G01S17/88 ,  G01S7/481 ,  G01S17/42 ,  G01S17/58

Abstract: The invention relates to a Sensor (10) for controlling an automatic door, where the sensor (10) comprises a laser scanner (12) for detecting the presence of an object, with at least one laser curtain (22, 32, 34) in a predefined detection area of the scanning field, where the sensor (10) comprises a distance data acquisition unit (13) that is embodied to acquire the distances of the points of reflection of the reflected signal by evaluation of time of flight, a presence detection unit (15), where the result of the distance data acquisition unit (13) is fed to the presence detection unit (15), where the distance data acquisition unit (13) forwards the distance data information to the presence detection unit (15), where the presence detection unit (15) evaluates, if an object is detected within the predefined detection area by analysing the distance data, where a presence detection information is created and fed to an at least one sensor output port (18, 18b). The invention is characterized in that the sensor further comprises an object information unit (11) comprising a human body identification unit (16), where the object information unit (11) receives the distance data, and the human body identification unit (16) uses the distance data to determine if the detected object is a human body, where the object information unit (11) creates an object information that is fed to the at least one output port (18, 18a).

公开(公告)号：US20210011126A1

公开(公告)日：2021-01-14

申请号：US16604068

申请日：2018-04-10

Applicant: BEA SA

Inventor： GAUTIER RADERMECKER

IPC: G01S7/48 ,  G01S17/42 ,  G01S17/89

Abstract: The invention relates to a method of human body recognition by analysing a detected object (P) in a monitored area and deciding whether or not the detected object is a human being with a laser scanner (12) comprising: the laser scanner (12) generates at least one laser curtain (22, 32, 34), where each laser curtain (22, 32, 34) is generated by multiple pulses evaluated by time of flight (TOF) measurement of single pulses to generate the distance of the points of reflection with respect to the laser scanner position; combination of distances of the points of reflection with the direction of the pulse to retrieve a position in a predefined detection zone within a monitored area; projecting the points of reflection belonging to a detected object into an evaluation plane (EP) as evaluation objects (O1, O2), where the evaluation plane (EP) has a Z-axis that is related to the height and a perpendicular one to the Z-axis that is related to the width in the direction of the lateral extension of the laser curtain (22, 32, 34). The invention is characterized in that the evaluation plane (EP) is evaluated based on the density distribution of the points of reflection along the Z-axis and the evaluation result is compared to anthropometric parameters.