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 make cable monitoring camera temporarily failed

2. with a laser pen on the camera to shoot what he can not shoot down the camera are automatically exposed but there is a light it automatically reduce the exposure.

Q:What kind of surveillance camera is good for the hotel?

Elevator: Suitable for use with some miniature cameras such as a flying saucer camera, or a small hemisphere. Installation is simple, the overall effect is beautiful

Q:Ccd monitor how the camera and computer connection

2. Video camera needs a matching power supply, usually 12v.

Q:Monitor the top ten cameras

Followed by: Hikvision as D-Link Dahua Dili as Sony Sony Sony Ithink Iceland as worry

Q:Monitoring camera 6mm 8mm 12mm 16mm length and width can be according to how much.

At the same time, the same focal length, length and width shooting range also with the camera CCD has a relationship. Charge - coupled Device, Charge - coupled Device. It is a semiconductor device that converts optical images into electrical signals. At present, most of the CCD chip used in the surveillance camera is 1/3 "and 1/4", that is, the target size is 1/3 inch and 1/4 inch. CCD target surface size, CCD and lens with the situation will directly affect the size of the field of view and image clarity.

Q:The camera used to monitor the color of the screen is not normal. Blue as red. Red out is blue. New to buy the camera

This is the reason for the collection card, the problem is installed after the acquisition card.

Q:Remote monitoring principle

When the alarm occurs, the alarm decoder will be linked to the alarm output device, and through the alarm decoder to enter the alarm signal RV-2000 video terminal, and transmitted to the monitoring center, the monitoring center of the video server to receive the alarm signal immediately after the sound signal, Record alarm events, such as hard disk video alarm operation.

Q:Monitor the camera's focal length how to choose?

First, choose to monitor the camera lens also pay attention to the focal length of the lens, the focal length is actually the perspective of the problem, the focal length of different perspectives are also different.

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.