Security Camera With Recorder

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Product Description:

· Wireless AV transmission for home/business surveillance
· Provides image/video compression and storage
· Night vision (effective range: 7m)
· Motion-initiated recording to plug-in SD card
· Weather-proof design for outdoor usage
· 4 channels available to avoid interference
· Up to 100m (330 ft.) transmission range in open space  


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Q:Monitor the camera often flashing why
, The camera coding problem, 4, power supply is insufficient, 5 light dark, light sense of continuous switching, etc., 6, hard disk video recorder interface problems. There are plans to be accurate!
Q:What do I need to do with video surveillance systems?
Video surveillance system developed a short period of twenty years, from the 19's 80's analog monitoring to hot digital monitoring and then to the Internet video surveillance, has undergone enormous changes. In the IP technology gradually unified global Today, we need to re-understand the history of video surveillance system development. From the technical point of view, the development of video surveillance system is divided into the first generation of analog video surveillance system (CCTV), to the second generation based on "PC + multimedia card" digital video surveillance system (DVR), to the third generation based on IP network video surveillance System (IPVS).
Q:How to install a surveillance camera
3. Finally, debug the video device. Note: In Win7, the video screen requires third-party software to be displayed.
Q:Monitor the camera what models
Longitudinal and under the "and too" series for the industry's top ten users recommend the brand. Product quality and cheap, trustworthy! Longitudinal and was with the major government, military, schools, enterprises and institutions are all cooperation.
Q:An accurate calculation formula for monitoring the focal length and actual distance of the lens
The size of the imaging scene and the size of the imaging object are contradictory, for example, with the same camera to monitor the same parking lot, the choice of short focal length lens can be the entire parking lot to monitor and see the entrance Outside the vehicle out, but can not see the car's license number (the car in the monitor screen only occupies a small area)
Q:What's the number of lines that a surveillance camera needs to use?
3, the control line (it is the PTZ, the spherical camera control line, with a two-core dvvr line)
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
First of all, you have to make sure your camera is no problem. Secondly, I would like to ask. Your camera is a centralized power supply, or a single power supply, power supply line transformer is not too far away from the camera
Q:Buy monitor camera attention to what
Due to the manufacturers in the DSP and related technology between the level of differences, so the product is also different, so the parameters are marked with the gap, and some marked 500 lines, and some standard 520 lines, there are marked 530 lines, the highest marked 540 lines, Even 600 lines. So a variety of line number classification, in fact, shows the differences between the various, of course, which also mixed with a small amount of domestic enterprises to 480 lines fake 500 lines above the product composition. In fact, even in the same 540 line products, because the manufacturers of production technology differences and DSP technology differences, the same line of products with different results. But with the naked eye to distinguish is more difficult to compare out, unless the professional testing equipment or image magnification to distinguish, or find one or two real high-end brand camera to contrast. But in essence, 520 lines or more are called high-definition cameras, but analog cameras in the existing DSP and manufacturing technology based on a limit upgrade, it will be the traditional 480 line HD standard to 520 lines Or 540 lines.
Q:What is the meaning of the camera function heartbeat?
For example, after the information system has done single sign-on integration, it can keep the system's local login function in order to reduce the risk of system coupling. And then use the system "heartbeat" function to achieve the two users of the automatic switch, thus increasing the robustness of the system, to prevent the failure of the unified certification system caused by global paralysis. So what is the "heartbeat" function? The "heartbeat" function is a method of using periodic access to determine whether other system functions are normal.
Q:Monitor knowledge! 1.2 m × 20 meters of the corridor with a large angle of the camera the best?
According to my experience, the first with 6mm lens, the second with 3.6 or 4mm lens is better.

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