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Video Surveillance Cameras Features

Video surveillance cameras are used in security aspects of the quasi-camera, its pixels and resolution than the computer's video head is higher than the professional digital camera or dv low. Most of the surveillance cameras are just a single video capture device, with little data retention.

Surveillance cameras from the appearance of the main distinction between the gun, hemisphere, high-speed ball, in addition to analog monitoring and IP network monitoring distinction, widely used in schools, companies, banks, transportation, safe city and other security areas.

Uses: ordinary camera mainly refers to the network chat camera, surveillance cameras mainly refers to the special video surveillance security camera.

First ordinary camera is mainly used for video chat, photography and other activities, used in daily life. The surveillance cameras are mainly used for security checks, real-time control, investigation and evidence collection and a series of security activities. Second, the surveillance cameras are remote wireless control, and the general camera is not.

Function: the main role of the general camera object orientation is clear, usually in the case of the other informed. The surveillance cameras are mainly suitable for real-time monitoring, usually in the object without knowledge or semi-informed circumstances.

Different configuration: surveillance cameras in order to meet the security needs, usually than ordinary camera pixels and resolution is high, and some products with anti-glare, anti-vibration, night vision function. At the same time, the biggest advantage of surveillance cameras in the background can be installed a variety of software for security needs. Such as face recognition, automatic tracking, filtering, video storage compression.

Use effect: monitor the camera and the general camera is the biggest difference between the use of different effects. Monitoring cameras in order to deal with security, the need for remote control, long-term uninterrupted monitoring of the target. At the beginning of the design to determine its environmental adaptability is higher than the ordinary camera. Monitoring the lens on the camera is a semiconductor imaging device, which has a high sensitivity, anti-glare, small distortion, small size, long life, anti-vibration and so on.

Adjust the lens aperture and focus:

Turn off the high-definition digital camera on the electronic shutter and backlight compensation and other switches, the camera will be aimed at the scene to adjust the lens aperture and focus ring, so that the best image on the monitor. If you are using a camera with a large change in illuminance, it is best to mate the auto iris lens and turn the camera's electronic shutter switch (ELC) OFF. If a manual iris is selected, set the camera's electronic shutter switch (ELC) On the ON, and the application site is the brightest (ambient light maximum), the lens aperture as large as possible and still make the image is the best (can not make the image is too white and overload), the lens is adjusted. Install a protective cover and a good bracket can be. As the aperture is large, the depth of field is relatively small, the focal length should be taken as much as possible to take care of the entire monitoring scene clarity. When the scene illumination is reduced, the electronic shutter will automatically adjust to slow, with a larger aperture, can still make the image satisfactory.

In the above adjustment process, if you do not pay attention to the bright light when the lens aperture as large as possible, but the clearance is relatively small, the security surveillance camera electronic shutter will automatically adjust at low speed, it can still be on the monitor But when the light is dark, the aperture is relatively small, and the electronic shutter has been in the slowest (1 / 50s), and this time the imaging may be a dark one.


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