Patent ID: 11921205
Assignee: PIXART IMAGING INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. The method according to claim 13, further comprising:
controlling the first light source to scan the horizontal detection area by emitting the horizontal linear light at a first time point and a second time point that is separated from the first time point with a predetermined time period;
controlling the light sensor to capture the first frame at the first time point, and capturing a fourth frame by receiving the fourth reflective lights from the horizontal detection area at the second time point;
processing the first frame and the fourth frame to obtain the first reflection pattern and a fourth reflection pattern, respectively, and analyze the first reflection pattern and the fourth reflection pattern to determine whether the object is within the horizontal detection area and does not move within the predetermined time period;
in response to determining that the object is within the horizontal detection area and does not move within the predetermined time period, controlling the autonomous robot to move toward the object by a predetermined distance through the driving circuit and the plurality of wheels;
controlling the first light source to scan the horizontal detection area by emitting the horizontal linear light at a third time point that is after the autonomous robot moves the predetermined distance;
controlling the light sensor to capture a fifth frame by receiving the fifth reflective lights from the horizontal detection area at the third time point; and
processing the fifth frame to obtain a fifth reflection pattern, and comparing the fifth reflection pattern with the first reflection pattern or the fourth reflection pattern to determine whether the object is detected by misjudgment caused by the first reflective lights and the fourth reflective lights.