Q:Camera clarity, 1080p. 3mp. 4k, what does it mean

1080P that is 1920 × 1080 resolution, progressive scan (equivalent to two million pixels)

Q:What is the difference between a dome camera, a gun camera and a dome camera in security monitoring?

Ball with the above two biggest difference is that the ball can control the keyboard to control, generally installed in the need to monitor the relatively large range of the hall, outdoor large area. General bolt and hemisphere price almost. Cheaper on the hundreds of pieces, good also two or three thousand. But the ball will be very expensive, made in the thousands of good brands will reach two or three million.

Q:What is the meaning of the camera function heartbeat?

For example, after the information system has done single sign-on integration, it can keep the system's local login function in order to reduce the risk of system coupling. And then use the system "heartbeat" function to achieve the two users of the automatic switch, thus increasing the robustness of the system, to prevent the failure of the unified certification system caused by global paralysis. So what is the "heartbeat" function? The "heartbeat" function is a method of using periodic access to determine whether other system functions are normal.

Q:What is the difference between monitoring cameras CCD1 / 3 and 1/4?

Only 1/3 inch, 2/3 of the lens through the aperture of 2/3 inch, so under the same lighting conditions, 2/3 lens allows more light through, thus indirectly enhance the camera's illumination, ? 16MM of the small perspective, according to far, 8MM lens perspective, according to the relative, relatively speaking, the principle of record: the greater the number, according to the more distant, the smaller the angle; the smaller the number, The more widely

Q:Will monitor the camera should buy much. Room size of 8 meters 7 * 3 meters 3, is expected to use four camera monitoring head. Will the camera to buy much?

Hard disk can be used in two 500, the video can save about 45 days or so.

Q:Now the surveillance camera really tmd nonsense, four hundred or five hundred products with more than a hundred USB camera are not as good as poor resolution did not shadow, and generally are so, monitoring products are pit father,

of. The current generated by these two complementary effects can be recorded and interpreted by the processing chip as an image. CMOS CCD for the most important advantage is very power. Unlike the diode composed of CCD, CMOS circuit

Q:How to monitor the camera with the venue, what type of camera installed in what kind of site, the camera installed how much the number of lenses should be equipped with light board.

Surveillance cameras indoor and outdoor, the indoor general with the hemisphere or the appearance of the bolt. Outdoor is the infrared ball machine or gun-type camera. In addition to hemispherical cameras and smoke-sensitive models, UFO cameras have installation restrictions, and other gun-type cameras have no specific installation restrictions. The type of camera mainly depends on your site and the requirements of Party A.

Q:Video surveillance camera pixel 1080P what it means

Effective display format: 1920 × 1080, the number of pixels to reach 207.36 million letters p means progressive scan digital 1080 that the vertical direction of 1080 horizontal scan line,

Q:What is the meaning of the high definition and standard definition of the surveillance camera?

Sub-level is not the same, there are industrial-grade, home-class, high-definition standard than the standard standard strict.

Q:I would like to install at home and back door two cameras in general how much money?

There are dozens of front-end camera to tens of thousands of you so close to the video line can be SYV75-3, back-end with a collection card is also a few dozen to thousands of hard disk video recorder is from more than 300 to 10,000 or so.