Q:Monitoring camera POE power supply is good, or centralized power supply good?

If you have to use (see profits, you understand), it is recommended to choose some big brands of products, such as Huawei, 3com, etc., the cost is high, 20 meters if the use of oxygen-free copper feet .5 super five twisted pair , The loss on the wire can be ignored, but the use of POE power supply to consider the lightning ah, a break is a big string ah! :) POE to be used to do lightning protection measures Oh. And POE power supply in the event of failure when the investigation than the use of some trouble with the transformer.

Q:How does the surveillance camera solve the backlight problem?

First, adjust the orientation of the entrance camera equipment, try to avoid direct sunlight from the outside, to a large extent to improve the entrance of the backlight appearance. For example, the bank door equipment needs to monitor the staff to monitor the entry and exit personnel, if we will be facing the entrance of the camera equipment, you can encounter a more severe anti-light appearance, will cause the camera to monitor the screen black, can not see what photos, At this time, the engineers will monitor the entrance of the camera flip, so that the camera lens out of the network of personnel, which is better than the role of the camera on the entrance device, you can better deal with backlight problems.

Q:Video surveillance camera pixel 1080P what it means

1080P is a video display format developed by the American Society of Film and Television Engineers (SMPTE).

Q:Monitor the farthest distance from the camera can be far, which manufacturers out

The effective distance of the surveillance camera is determined by the lens focal length used, and there is no direct relationship with the manufacturer. Surveillance cameras on the market effective monitoring distance is generally in the five meters to 150 meters.

Q:Camera monitor the recorded file 1 hour how much G ah?

Monitor video 24 hours per channel per day Recording space size calculation formula:

Q:What kind of surveillance camera points

Infrared integrated camera, integrated camera, infrared hemisphere, ordinary hemisphere, explosion-proof hemisphere, constant speed ball, medium speed ball, high speed ball, network camera, gun camera (low light, wide dynamic, color to black) And so on.

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

Third, because the lens focal length and horizontal perspective is inversely proportional, so both want to see far, want to see wide and clear, it can not be achieved at the same time. Each focal length of the lens can only be in a certain range to achieve the best monitoring effect, so if the monitoring of the distance and a larger range, it is best to increase the number of cameras, or the use of electric zoom lens with PTZ installation , Of course, this for the civilian use, some expensive, and practical will not increase greatly.

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

According to the length of the cable, the camera's clarity is good or bad, a good camera generally a 160 or so can, the two together also 500 almost.

Q:Monitoring the camera has a 700 line with 1080 lines of 900 lines is what does that mean? consult

How many lines follow the concept of the simulation era, and how many lines can be resolved from left to right (similar to resolution, but not equal to resolution). 1080 refers to the video from top to bottom there are 1080 lines, also refers to the full HD resolution, and 1920 (each line) * 1080 (line), which is the format of digital video

Q:HD camera is said that his clarity, infrared camera is that it's night vision function, in order to highlight the main features of the name of a

1, the camera generally talked about the camera, it is natural to think of home cameras. In fact, surveillance cameras and home cameras are many different, first of all fundamentally design standards are different, one for industrial applications and design, one for home use and design, so they work in a long time, the use of the environment The volume is small, the monitoring machine with small size, and the home machine because all the control parts and tape all installed in the same chassis, so the volume to be much larger, and must be on-site manual control, can not achieve remote remote control ; In the key resolution, the home machine is generally about 300 lines in the horizontal, and monitoring machine for the blackboard on the blackboard, the horizontal resolution should be more than 400 lines. The JY-803 integrated color camera, 480TV line center resolution, 1Lux low illumination, with automatic white balance, backlight compensation and automatic electronic shutter adjustment function, built-in 22x optical lens.