In security monitoring, network monitoring should be popular with the development of big data and network era. Since the transmission of network video monitoring data, the Internet monitoring server has become an indispensable equipment, and the quality of the monitoring server directly affects the performance of the whole monitoring system. Therefore, the selection of video monitoring server is very important. The small series provides the following points for reference.
This is the basic premise of remote monitoring and the basic element to ensure whether remote monitoring and unattended can be realized. The video display monitoring picture is fuzzy, which has no application significance. At present, there are generally two image quality CIF and D1 options on the market, with 352 * 288 and 704 * 576 resolutions respectively. Without considering other factors, of course, the DVD image quality of D1 is the best, but if bandwidth is considered, CIF can also meet the needs of some ordinary occasions.
This is one of the indicators of the video surveillance server. Under the same picture quality, the lower the occupied bandwidth, the higher the compression rate of the video surveillance server. In large-scale applications, high compression rate can greatly reduce your network use cost. Therefore, when selecting such products, the equipment cost will be relatively high, but the subsequent overall cost will be greatly reduced.
This is also an important indicator of network products. In order to ensure the timeliness of on-site signals, the product is required to be kept at the microsecond level when the bandwidth is not limited. That is, in the absence of bandwidth, the delay of the video monitoring server itself should be ignored. Therefore, it is best to give sufficient bandwidth in the LAN to test its performance. At the same time, you should also consider how much bandwidth your device requires under actual circumstances. Otherwise, it is difficult to play its role with high-end products.
This function is to ensure that high-definition pictures can be transmitted back under the condition of low bandwidth. In some monitoring fields, it is a good choice to retain evidence after an accident in case of insufficient bandwidth.
This is the best application of unattended and remote control. Of course, it is necessary to select a product with a certain level of bandwidth control and audio and video synchronization processing ability. Generally, it has voice monitoring or two-way voice requirements.
This function is generally critical, but when the bandwidth is insufficient and obvious monitoring evidence is required, the local storage of video data is generally selected, because if the registration server stores a large number of video image data, the server will be overwhelmed, so the general video data are stored in the local SD card, and the image data is fully stored with automatic coverage function, Generally, it can be stored for 24 hours for about a week.
The application of a single video surveillance server is only a primary application, and its real function lies in its powerful system integration ability. It should be said that the soul of video surveillance server lies in the system integration of software. When there is no standard at present, it is more the manufacturer's own large system. Therefore, as consumers, we should consider the use of software, and large manufacturers should master the core technology in system solution. Compared with small manufacturers, it has more advantages, which is completely different from directly buying a finished equipment.
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