公开(公告)号：US20210211571A1

公开(公告)日：2021-07-08

申请号：US17056815

申请日：2019-05-24

Applicant: Hanwha Techwin Co., Ltd.

Inventor： Dong Jin PARK ,  Dae Bong KIM ,  Young Sang KWON ,  Ki Bum PARK ,  Joon Chan PARK ,  Young Sub KIM

IPC: H04N5/232 ,  G01S17/08 ,  G01S17/88

Abstract: A monitoring system includes a camera module that photographs a subject, a laser distance sensor that senses a distance to the subject, the laser distance sensor being arranged in a line with the camera module, and a processor that acquires a first angle and a first sensing value of the laser distance sensor in response to an event, calculates a first distance between the camera module and the subject by using the first angle and the first sensing value, calculates a second angle by using the first distance, a laser angle of view of the laser distance sensor, and a laser angle of view length of the laser distance sensor, rotates the laser distance sensor up to the second angle when a difference between the first angle and the second angle exceeds a predetermined range, acquires a second sensing value of the laser distance sensor, and operates the camera module based on the first sensing value or the second sensing value.