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Surveillance camera and its mobile control method

A technology for monitoring cameras and control methods, applied in feedback control, image communication, television, etc., capable of solving the problems of decreased accuracy of horizontal roll and vertical pitch

Active Publication Date: 2021-09-10
HANWHA TECHWIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a surveillance camera and a movement control method thereof, which can improve the horizontal pan and vertical movement caused by hysteresis and out-of-step in the horizontal pan mechanism or vertical pitch mechanism of the surveillance camera. The problem of decreased accuracy of vertical pitch

Method used

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  • Surveillance camera and its mobile control method
  • Surveillance camera and its mobile control method

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no. 4 example

[0149] According to the fourth embodiment of the present invention, by using the PI sensor unit 219 to perform the first correction of the pan or vertical pitch, the second correction using the edge value can be shortened in the case of out-of-synchronization. The time of correction. That is, the total correction time for pan or pitch can be further shortened.

[0150] Figure 16 It shows that in the fifth embodiment of the present invention, when setting a monitoring object area, figure 2 The process in which the main control unit 207 stores the information of the reference position.

[0151] Figure 17 show Figure 16 The edge detection mask used in the detection step S1604. Figure 17 Among them, reference numeral 1701 denotes a mask for vertical edge detection, 1702 denotes a mask for horizontal edge detection, 1703 denotes a mask for diagonal edge detection from upper left to lower right, and 1704 denotes a mask from upper right to lower left. Mask for corner edge ...

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Abstract

The present invention provides a surveillance camera and a movement control method thereof, which perform horizontal panning and / or vertical pitching at a set angle, and include a correcting step for correcting the horizontal panning and / or vertical pitching. The correcting step includes a horizontal roll control step and / or a vertical pitch control step. Correction of horizontal pan is performed using the vertical pixel line whose sum total of the edge values ​​is the largest. Thereby, the accuracy of panning can be improved by a simple additional operation. Using the horizontal pixel for which the sum of the edge values ​​is the largest, correction of vertical pitch is performed. Thereby, the accuracy of vertical pitching can be improved by a simple additional operation.

Description

technical field [0001] The present invention relates to a surveillance camera and its movement control method (Urveillance camera and Method for controlling panning and tilting of surveillance camera). ) and / or vertical tilting (tilting) monitoring camera and its movement control method. Background technique [0002] In the monitoring mode of the monitoring camera, periodic monitoring is performed on multiple monitoring object areas designated by the user through horizontal panning and / or vertical tilting. For example, if the user inputs position coordinates, the main control unit in the surveillance camera will set a horizontal pan angle and / or a vertical tilt angle corresponding to the input position coordinates. Afterwards, the horizontal panning at the horizontal panning angle and / or the vertical pitching at the vertical pitching angle are periodically performed. [0003] In the monitoring mode of the surveillance camera as described above, in the pan mechanism or the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18G05D3/12
CPCG05D3/12H04N7/181
Inventor 李尚旭卞载云金大峰郑求玹
Owner HANWHA TECHWIN CO LTD