Cctv 4 Camera System

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FAQ

What is the difference between a network video encoder and a hard disk video recorder? And bolt machine cameras are the same as security monitoring? What kind of network video encoder used

Network video coding is a professional network transmission device for compressing and processing audio and video data. Mainly to provide video compression or decompression function to complete the image data acquisition or recovery, the current more popular MPEG-4 or H.264-based image data compression through the Internet network to transmit data and audio data processing. And the same bolt, belong to security products. Suitable for viewing images monitored by the camera over the network.

What is the camera's shooting range? How much is the diameter?

Can you say what the next camera, mobile phone, computer, monitor, or what?

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.

Monitor the camera's focal length 4 meters good or 8 meters good

The focal length is: mm. The smaller the data, the larger the shooting angle is, and the larger the captured range

Monitor how the camera is connected

2. How to use the cable connection to monitor the camera cheap. The price of the ordinary ultra-five cable is quite comparable with the 75-3 video cable, the outdoor waterproof super five cable prices are comparable with the 75-5 video. VGA cable (also known as VGA cable, signal line, image transmission line), is used to connect the host computer and monitor. The general minimum length of the standard shall not be less than 1.5M, without both ends of the thread. The market also has 1.8M, 2M, 2.5M, 3M, with a host computer, these lengths are generally used for foreign customers. The maximum length of the VGA is not a uniform standard, how long do you want to do to give you how long to do, of course, the line is too long, the impact of image transmission. Moreover, the price is very expensive, the maximum length can do 30M has been very good.

What is the difference between monitoring the camera and the usual?

3. Camera effect: monitoring with the camera, generally require high clarity, because the current computer camera commonly used sensor chip is Micron or modern photographic chip, these two kinds of chip camera, clarity are similar, if the use of 5 glass Lens, then the requirements are less stringent occasions are generally able to meet the basic requirements, and 30 frames per second speed is basically able to meet the monitoring needs. If you need better clarity, you can use the physical dynamic 1.3 million camera (not online nonsense 1.3 million, need to emphasize that the sensor chip and interface chip support physical dynamic 1.3 million camera, can really be considered 1.3 million ), This camera is generally better imaging results than the use of magnesium light and modern sensor chip camera, can get better than the average physical 350,000 camera effect, but the bandwidth occupied and CPU occupancy rate is very high. So easy to monitor the camera system easy to use.

Remote monitoring principle

The system uses hardware compression software decompression technology, in the relevant departments of the computer terminal to add the appropriate software or Windows comes with the IE browser Web function can be achieved remote video monitoring function, set the video monitoring workstation.

An electronic surveillance camera every month to consume how much electricity

1, the general camera is divided into four, the ball machine, infrared one machine, infrared hemisphere machine and bolt;