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Why is network monitoring delayed?
Speaking of network monitoring delays, I am afraid that has become a well-known drawback. However, what is the reason for its delay? In the author's opinion, the following three points are the culprit that caused its inferiority in the competition with HD-SDI.
For network monitoring, the limitation of network bandwidth has always been a part of ip monitoring headaches. It is precisely because of such restrictions that forcing network monitoring to have to abandon some very important things in the transmission. In the general network transmission system, the router is the most important and indispensable equipment of the entire system. However, the router's transmission of network video may not be so friendly. As the transmission of the route takes a certain amount of time during the transmission, the more routers there are in the transmission, the greater the delay of the data. This also makes long-distance transmission, delay has become an unavoidable thing.
In addition to routers, the quality of the line and the high-pressure network traffic are all the culprit.
Time-consuming network signal processing host
In the transmission of the network, codec is recognized as the main factor of time-consuming. Since the decoding device of the network video monitoring system is usually used for the host of the client. Therefore, the host configuration has a direct impact on the overall signal transmission rate. If you catch up with a relatively old and sick host device, then the delay phenomenon is certainly essential.
In network transmission, the processing of encoding itself takes time
Because in the daily video transmission, analog and digital conversion is also a consumption point that cannot be omitted. At present, in order to obtain better picture quality, many manufacturers are using the most advanced H.264 as their own compression algorithm. However, when the image scene is more complex, the more moving objects, the greater the frame rate and the code rate, the higher the level of the H.264 class used, and the more difficult the codec is, the more time it takes. The more it is.
Network monitoring equipment
It is exactly these three hurdles in the above network transmission process, so that the delay of network video transmission becomes an unavoidable problem.
Faced with delays, can HD-SDI be able to do more than work?
Through the above analysis, we can find that the delay of video transmission is an inevitable reality in the network video transmission and even the entire video transmission. In the face of delay, HD-SDI can really be easily implemented. Pass out?
It is understood that in fact, the delay phenomenon is a very common thing in the transmission. As a kind of video transmission, HD-SDI is bound to be no exception. Only the HD-SDI delay is relatively small, so it is difficult for users to find it in the absence of intuitive comparison. In addition, because HD-SDI has advantages in short-distance transmission, HD-SDI usually uses network channel transmission if it is required to perform long-distance transmission. In this case, signal queuing is greatly increased. time. So, does HD-SDI at this time still have obvious advantages for network monitoring as many people think?
In fact, nowadays, with the rapid development of network technology, the processing time of network HD video cameras has become increasingly obvious. Even network HD transmission delays have become increasingly insignificant in the entire transmission system. Instead, in some large-scale video transmissions, HD-SDI's hierarchical networking is ultimately based on IP networks. Therefore, the HD-SDI transmission rate is in such a system that still depends on network transmission. More is reflected in a theoretical advantage.
Through the above analysis, we can easily find that with the continuous advancement of network technology and compression technology. HD-SDI's transmission advantages have long been unlike the legendary. Its once-advantage has already been almost smoothed by the increasingly perfect network transmission and imprecise HD-SDI long-distance transmission. Therefore, in the selection of equipment, we face the distance that is almost equal, put down the concept of theory, and proceed from the actual needs and effects. I am afraid that it is the most correct choice for whether the delay will be tested.
Faced with the delay HD-SDI can do more than ease?
In the current security field, if you mention HD-SDI, I am afraid that it will always be accompanied by endless words. Whether it is clarity, or the speed and quality of the transmission, it seems that there will always be a feeling of untimely growth in the network monitoring that is occurring at the same time. After all, if the two are put together, the loss rate and delay of HD-SDI video data may make it inferior to the inferiority. Of course, we do not discuss the loss of data signals here. However, when it comes to the degree of delay, is it really exaggerating how HD-SDI compares with network monitoring?