How can H.265 save so much！
Compare H.265 to H.264 there are many general advantages, why choose H.265? What can H.265 bring to us?
Before we get to know the advantages of H.265, let’s talk something else. The actual bandwidth of a switch. Before that, we must have this awareness – Monitoring will never be the independent existence of one or several monitoring devices. Usually it presents to us in the form of a system concept, as has a video capture, video transmission, video presentation and even with the remote terminal complex system, each link determines the final user experience, and as in transmission subsystem the most important part switches, are always overlooked. For small and medium-sized projects, the market common “fool” switch is our first choice, generally speaking, the actual exchange performance of the switch is 50% -60% of its theoretical value, that is, the actual bandwidth of the Fast switch is 50-60M.Second, the market mainstream 200 million pixel high-definition network camera product stream in accordance with the different encoding format specific values shown in the following table (the main stream for video storage and large screen preview, sub-stream for small screen preview and remote Monitoring, in actual monitoring system, the main and sub streams need to be transmitted at the same time).
Coding format Main stream Sub-stream Total transmition stream
On the basis of above accumulation knowledge, let’s analyze the advantages of H.265.
H.265 saves more cost.
・Saving switch resources
To use a 100M switch, 50M actual bandwidth for example, a switch can access 50 ÷ 3 ≈ 16 sets of H.265 2MP camera; the same switch can only access 50 ÷ 5 ≈ 10 sets of H.264 Of the 2MP cameras. From the data point of view, the same switch can access more H.265 camera, if there are projects using 10-16pcs 2MP camera, in order to ensure the smooth transmission of video, if use H.264 camera requires Gigabit switch, and if H.265 camera the Fast switch is OK.
・Save bandwidth resources
According to the above analysis, what’s more, the reduce of bandwidth of the sub-stream also means that the remote process of taking less network resources, In the same network conditions, H.265 devices compared to H.264 devices have more smooth remote effects, but also let Remote main stream becomes possible, such as in the condition of uploading 3Mbps, the use of H.264 devices can max view 3 channels sub-stream, can not remote view main stream smoothly; H.265 devices can max view 5 channels sub-stream or 1 channel main stream.
・Save hard disk, do not have to use large SATA NVR
According to the above analysis, in the same conditions, H.265 video occupied less hard disk space, with four JVS-H3-47 store one month, only need a 3T hard disk, means to buy a single hard disk NVR is enough! While the use of H.264 devices need more than 5T.
For small and medium-sized projects, the external offer is generally packaged prices, basically not specific to a single device, so as to be able to meet the requirements of Party A, under the premise of the total price of the project, the above cost savings not only means to be able to bring more profits for customers, but also for the service customers to bring a smoother experience.
Details more prominent
The development of the monitoring industry is a process of high-definition, from analog era into megapixel high-definition, and now has entered into the era of universal 500 Megapixel HD, customers require for monitoring clarity is higher and higher, on the other hand intelligent algorithms (such as Face recognition, license plate recognition, etc.) also requires the picture the clearer the better. These are the unsatisfactory thresholds for H.264 devices. Even the same resolution camera, H.265 device due to the advantages of the algorithm, can be done in the high magnification without distortion, the details can be more prominent.
More optional for display, 4K display is not necessary
It has been more or less a misunderstanding – the use of H.265 devices must use 4K display, the high cost of 4k display makes a lot of people stay away from H.265. In fact is not ture, as mentioned before, due to the optimization of H.265 algorithm, H.265 device with 4k display can display a more clear picture, but the use of ordinary monitor is still able to ensure the normal operation of the entire monitoring system, the main screen preview through NVR amplification function can also see more delicate picture than H.264 .
Finally I want to tell you that H.265 video coding technology is the trend development, is the common choice of many technical experts, facing the benefits that H.265 technical brings, we have enough reason to believe that equipped with H.265 technology Security monitoring products must be in the present and the future for a long time in the security market to occupy a larger market share. At present, another advantage is the H.265 market is relatively blank, struggle in the bitterness of H.264, it is better to transfer to the H.265, in a relatively blank market fighting, consolidate and build your own barriers, wouldn’t it be better?
