Remote video surveillance, also known as remote network monitoring refers to the monitoring of those who are not surveillance cameras or around other imaging acquisition devices, remote viewing site monitoring scene video over the network, this can be achieved even if the monitoring were not at the scene, but also to view real-time scene occurred demand situation. Imagine if the body at the head office in real time to view real-time company branches or even several branches of the scene, it is a kind of experience?
Of course, remote video monitoring and control system requires a certain conditions, as follows several:
1, the front end of
cameras network acquisition devices, integrated camera IP network module can be smoothly connected to the Internet, the surveillance camera according to the demand selection is generally ball machines, and the hemisphere bolt, according to the scene selection, the ball near the indoor machine, multi-bolt corridor, outdoor and other more distant shot, can be rotated generally hemispherical shooting, and the focal length adjustable important occasions use. Of course, there are some industry equipment, such as a fireproof, waterproof, special purpose lamp Eagle Eye camera.
2, the middle portion of the transmission
intelligent network gateway is equivalent to the off-site networking equipment, network operators are now rarely give public IP network, in addition to green with a public IP and other broadband IP network basically, that is not direct access method is outside the network, you can use third-party services to achieve remote networking, to achieve interoperability of each point;
third-party service requirements for network environments:
2.1 can access Internet network (green of course better);
2.2 bandwidth, which is for you to look at the camera a few requirements to see all the way and look at ten way the bandwidth required is certainly not the same;
the picture quality transmission over 2.3, the concept of large ones and look at the camera almost, is the bandwidth requirements , the higher the demand for clear need for greater bandwidth;
3, the back-end
storage server NVR, Video Server can also be used, of course, cost accounting, etc. to be added to the list, DVR solve the problem of long video, you need to store long-term on the choice of how much hard drive. Of course if the number of visitors more, or a lot of storage time, it is recommended to select a video server, streaming media integration, distribution servers, storage and other functions of video server.
4, accessories,
cable accessories, etc. The power cord, this is a must.
Remote video surveillance main work is on network planning, other modules of the system such as cameras, storage is very mature program, the network group's network as long as the site allows, the best results point to point line, of course, so the price is relatively high , in order to use the budget to achieve. Generally you can use third-party services, such as zero escape intelligent network gateway, simple operation, each mode access point by a router deployment on the line, the effect is comparable to the line.