Q:What does the privacy of the surveillance camera cover?

3, integrated camera: built-in lens, you can automatically focus on the lens control is convenient, easy to install and debug;

Q:What kind of monitoring camera is used in the store? 360 ° with the introduction of ordinary

If you consider the general monitoring, select the analog camera, ordinary video recorder (remember with a hard disk), plus a display, the estimated cost of 1000-1500 or so.

Q:How to use the network cable to connect the surveillance camera?

Network cable to do monitoring line in two ways, but depends on the camera's video transmission.

Q:What kind of surveillance camera points

Infrared integrated camera, integrated camera, infrared hemisphere, ordinary hemisphere, explosion-proof hemisphere, uniform speed ball, medium speed ball, high speed ball, network camera, gun camera and so on.

Q:Hello, because no electric video recorder did not manually set, but I would like to look back a few days before the monitor can be transferred out

3, the operator will not operate the hard disk video recorder, did not correctly follow the normal steps to call the DVR video. 4, hard disk video recorder motherboard problems.

Q:There are cameras at the fork in the expressway

Highway cameras are generally high on both sides of the road, it is easy to see. Fixed speed device with radar speed function, video surveillance equipment with automatic capture reversing, parking, retrograde, parking up and down and other functions, high-definition bayonet equipment with radar speed, capture carts, not seat belts, 2:00 to 5 Point bus pass pictures and other functions. Highway monitoring system common three kinds of products:

Q:How to clean the surveillance camera

Material: distilled water special cleaning agent lens paper lens rub recommended conditional deer skin (protect the lens does not wear off hair loss) method:

Q:What is the minimum illuminance indicator of the surveillance camera?

IRE Level: The maximum amplitude of the video output of the CCD camera is generally set at 100IRE (or 700 mV), and a 100IRE video indicates that you can fully drive a monitor to show the best brightness and contrast image quality. 50IRE video shows only half the contrast, 30IRE (or 210 millivolts) that only 30% of the original amplitude, usually 30IRE is the lowest performance available image value. So there is no indication of the lowest illuminance results of the IRE grade and are not actually comparable. Finally, it is the camera's special function settings.

Q:What is the number of lines that a surveillance camera needs to use?

If it is a network camera is a network cable on it, the network camera to install the pickup, audio, video signals transmitted through the network.

Q:The working principle of the camera with infrared light

Second, the infrared camera imaging principle In the night vision monitoring system, the conventional approach is to use the visible light, but this way there can not be hidden, easy to monitor the target and other shortcomings, so use less; the current hidden, scientific night vision monitoring Is the use of infrared camera technology. Infrared camera technology is divided into passive and active. Passive infrared camera technology is the use of any substance in the absolute zero (-273 ℃) are more than infrared radiation, the higher the temperature of the object, the more infrared radiation. The most typical of the cameras made with this principle is the infrared camera, but this special infrared camera is expensive and therefore limited to military or special occasions. The active infrared camera technology is the use of infrared light radiation "lighting" (mainly infrared light), the application of ordinary low-light black and white camera, color to black and white camera or infrared low-light color camera, feel around the scene and the environment reflected back to the infrared light to achieve Night vision monitoring. Active infrared camera technology is mature, stable, become the mainstream of night vision monitoring.