Patent ID: 11889185
Assignee: HANWHA TECHWIN CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A method of operating a monitoring system including a camera module and a laser distance sensor arranged in a line with the camera module, the method comprising:
detecting an event;
acquiring, in response to the event, a first angle of the laser distance sensor and a first sensing value that is a result obtained by sensing a distance to a subject through the laser distance sensor;
calculating a first distance between the camera module and the subject by using the first angle and the first sensing value;
calculating 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;
comparing the first angle with the second angle;
operating the camera module based on the first sensing value when a difference between the first angle and the second angle is within a predetermined range; and
rotating the laser distance sensor up to the second angle when the difference between the first angle and the second angle exceeds the predetermined range, acquiring a second sensing value of the laser distance sensor, and operating the camera module based on the second sensing value.