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Method and device for switching working mode of PIR camera

A technology of working mode and switching device, applied in image enhancement, image analysis, image communication and other directions, can solve the problem of unable to capture the scene in time, and achieve the effect of improving the switching speed

Active Publication Date: 2016-04-13
ZHEJIANG UNIVIEW TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a PIR camera working mode switching method and device, avoiding the problem that the PIR camera in the prior art re-calculates the exposure parameters and cannot capture the scene to be recorded in time, and can quickly adjust the exposure parameters

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  • Method and device for switching working mode of PIR camera
  • Method and device for switching working mode of PIR camera

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Embodiment Construction

[0039] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, and the following embodiments do not constitute a limitation of the present invention.

[0040] This embodiment provides a method for switching the working mode of a PIR camera. When the PIR camera detects a change in illumination, or detects that the monitoring target is within a certain range, it needs to switch the working mode. Predict the exposure parameters for switching to another mode, so as to achieve the purpose of rapid exposure adjustment.

[0041] like figure 1 As shown, a kind of PIR camera working mode switching method of the present embodiment comprises:

[0042] Step S1, read the current working mode of the PIR camera, and record the exposure parameters of the current working mode.

[0043] The working modes of the PIR camera include black and white mode and color mode. Generally, when the ambient lig...

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Abstract

The invention discloses a method and a device for switching the working mode of a PIR camera. The method comprises the steps of firstly reading the current working mode of the PIR camera, and recording the exposure parameter of the current working mode; then judging whether the working mode needs to be switched, if yes, entering the next step, and otherwise continuously working under the current working mode; and at last setting a target exposure value under the working mode after switching, combining with the exposure parameter of the current working mode to compute the exposure parameter of the working mode after switching, and thereby completing switching. The device provided by the invention comprises a recording module, a detection module and a switching module. According to the method and the device provided by the invention, the exposure parameter of the working mode after switching is predicted directly according to the exposure parameter of the current working mode without gradually regulating through photometry and exposure computation, and thereby the switching speed is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of video surveillance equipment, and in particular relates to a PIR camera working mode switching method and device. Background technique [0002] Video surveillance is an important part of the security system. Video surveillance is widely used in many occasions because of its intuition, accuracy, timeliness and rich information content. In recent years, with the rapid development of computer, network, image processing and transmission technology, the popularization trend of video surveillance has become more and more obvious. [0003] Passive infrared technology PIR (Passive Infrared) is widely used in monitoring front-end equipment, and monitoring front-end equipment using PIR technology is called a PIR camera. In the application of PIR camera, it will switch to black and white mode and automatically turn on the infrared light in low light environment. When the motion detection mechanism of the PIR camer...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/667H04N23/70H04N23/11H04N23/72H04N23/10H04N23/71H04N23/73H04N23/76G06T7/50G06T7/20G06T2207/10016G06T2207/10048G06T2207/30232
Inventor 余恒乐徐琼陈晓雷
Owner ZHEJIANG UNIVIEW TECH
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