Patent search ap:("HANWHA TECHWIN CO. Page LTD.") AND inv:"Sang Hyun Cho"

1.

发明授权
Method of maintaining tilt angle, method of controlling tilting, and surveillance camera 有权

公开(公告)号：US10567653B2

公开(公告)日：2020-02-18

申请号：US15933270

申请日：2018-03-22

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Dae Bong Kim , Cheol Ho Kim , Young Mi Kim , Sang Hyun Cho , Jong In Park

IPC: H04N7/18 , H04N5/232

Abstract: A method of rotating a surveillance camera having an acceleration sensor and being controllable by a processor to maintain a tilt-angle to conform to a command tilt-angle, includes the steps of moving the surveillance camera tilt to a predetermined command tilt-angle in response to a signal from the processor; periodically calculating estimated tilt-angles by using acceleration values in at least one axis of an acceleration sensor; calculating a difference value between an estimated tilt-angle of a current period and an estimated tilt-angle of a previous period; and when the difference value between the estimated tilt-angles exceeds a set limit, moving the camera to another position to correct the tilt angle according to the difference calculate.

2.

发明申请
METHOD OF MAINTAINING TILT ANGLE, METHOD OF CONTROLLING TILTING, AND SURVEILLANCE CAMERA 审中-公开

公开(公告)号：US20190182425A1

公开(公告)日：2019-06-13

申请号：US15933270

申请日：2018-03-22

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Dae Bong KIM , Cheol Ho Kim , Young Mi Kim , Sang Hyun Cho , Jong In Park

IPC: H04N5/232

CPC classification number: H04N5/23258 , G08B13/1963 , G08B29/24 , H04N5/23267 , H04N5/23287

Abstract: A method of rotating a surveillance camera having an acceleration sensor and being controllable by a processor to maintain a tilt-angle to conform to a command tilt-angle, includes the steps of moving the surveillance camera tilt to a predetermined command tilt-angle in response to a signal from the processor; periodically calculating estimated tilt-angles by using acceleration values in at least one axis of an acceleration sensor; calculating a difference value between an estimated tilt-angle of a current period and an estimated tilt-angle of a previous period; and when the difference value between the estimated tilt-angles exceeds a set limit, moving the camera to another position to correct the tilt angle according to the difference calculate.

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