Q:What is the reason for monitoring the camera's black screen?

Fourth, the monitoring of the video signal line broken (including line damage, poor contact), but also cause a black screen.

Q:How to connect a hard disk video recorder to a computer

(1) If it is in a local area network, as long as the hard disk video recorder inside the IP and computer IP in a network section on it. If you want to directly use the network cable can also, the method is the same, the first IP in a network segment, in a cross with the network cable can be connected through IE.

Q:Monitor camera parameters how to see the bigger the bigger the better?

The more the focal length, the more able to shoot distant objects, but the smaller the perspective, so depends on your specific needs, if you need a large range, you have to choose a small focal length, if you need to shoot distant, then select Focal length.

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

Therefore, the use of different F value of the lens, the camera's minimum illumination value of the determination will have a decisive impact. Second, the light source color temperature. The color temperature is an indicator of the light wavelength content in the light source. A 3200K light source is mostly between 600 nm and 900 nm, and a 9300K light source is between 300 and 500 nm, so the different color temperatures will change completely Test Results. On a typical CCD sensor, a light source with a wavelength of 600 nanometers will produce 10 times more electrons than a wavelength of 900 nanometers. This is why the color temperature is particularly marked for the meaning of the minimum illumination measurement results.

Q:6mm camera and 3mm camera What is the difference

3, the smaller the smaller the effective monitoring of the distance, the more the larger the effective monitoring of the farther away from the lens.

Q:Monitor the camera feel infrared

Infrared lens, the day will be a little color, color lens will not! Now with the monitoring of the CCD are feeling infrared, only the lens does not sense the sense of infrared.

Q:Police surveillance camera and civilian What is the difference?

Such as prisons, interrogation rooms, etc., need to use the explosion-proof damage to the camera, the police need to use the car head (plus lift rod), due to the increase in functionality, the cost will be relative to the increase, these are civilian do not need.

Q:A camera for an hour how much space

CIF according to each camera 0.2G per hour calculation, the day is about 5G. 2 head every day is 10G, 500G hard disk format after 460G, probably can record 46 days.

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:Network monitoring camera how to make external network access?

Second, to use the network to monitor the camera's P2P function, in the camera where the computer log on to the camera manufacturers authorized transfer site, account application and verification, equipment to add; then you can log in the Internet where the site input account And password, view the video has been added to the device.