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The development of security network has emerged. As an emerging device for network video surveillance storage and management, the development of NVR has attracted much attention. Through the observation of the development of the NVR market in the past year, we find that the application prospects are gradually clear. This paper analyzes the application status, product form, and manufacturers' efforts to develop the future market, and combines the DVR in the current video surveillance storage market. The development curve of hybrid DVR/NVR and NVR analyzes the market prospect of NVR.
Through the development in recent years, the application of NVR in the video surveillance market has gradually increased, which fully demonstrates that it has excellent functions in network video surveillance storage and management. With the increasing demand for security industry network monitoring, NVR has gradually spread from the specific fields such as industrial enterprises to the government public security, financial construction community, education, transportation and other fields, and has embarked on the “multi-point flowering†industry market application. .
On the other hand, traditional DVRs have begun to adapt to the needs of networking, and gradually strengthen their functions in networked storage and management. Traditional DVR vendors such as Hikvision, Dahua, and Dali have begun to develop network functions. More powerful DVRs, even fully absorbing the advantages of NVR in networked storage and management, launching hybrid DVR/NVR, DVR, hybrid DVR/NVR, NVR began to set off a “storm†in the storage market – In view of the fact that the domestic video surveillance market is still dominated by analog systems, the current development of the DVR market is still strong; hybrid DVR/NVR is an important device for video surveillance transition from analog to network, and its market demand is obvious in a certain period of time; In the verification of various market areas, NVR has fully demonstrated its superiority in networked video surveillance, which will gradually become a shining "new star" in the storage and management of the future video surveillance market.
So, what is the current application status of NVR? What kind of situation will the development of DVR and hybrid DVR/NVR be surrounded? The following will be an analysis of you.
First, the NVR application embarks on a clear theme
After the development of the past few years, the application of NVR has gradually expanded, and more and more fields have begun to install NVR systems to strengthen its video surveillance network process. At the beginning of the NVR, mainly in the fields of enterprises, factories, education, etc., the monitoring points in these areas are mostly scattered and difficult to implement a large number of wiring projects, so it is more inclined to apply network video surveillance and NVR systems. At present, the application of NVR system in several major industries such as safe city, public security, finance, construction community, transportation, medical care, etc. has gradually "fruited out". The development of network video surveillance has driven the deployment of NVR systems in the above-mentioned fields.
The voice from the engineering firm fully shows that the NVR system has begun to gain its favor: “As long as there is a network, the NVR system can be deployed, which not only makes the selection of video monitoring points more convenient, but also saves a lot of engineering construction time and also makes Later maintenance work has become easier. For example, in engineering maintenance, you only need to check the network cable to get through, you can know where the NVR system is coming out.†Wang Shudong, sales director of Suzhou Jindi Intelligent Technology Co., Ltd., said with DVR. Compared with the complicated wiring of the system, it is the convenience of construction and maintenance that makes the engineering company more inclined to recommend the NVR system to the user.
According to a survey conducted by Suzhou Keda Technology Co., Ltd. for 30 agents and 150 contractors and users at the end of 2008, industrial enterprises and building communities are scattered and independent, and most of their building structures are difficult to change, and the network has already been laid. In addition, the concept of network has been widely recognized in integrators, engineering companies and design institutes. Therefore, most new systems prefer network monitoring; the financial and transportation industries have shown clear demand for large networking in recent years. After experiencing the pain of analog monitoring and digital monitoring and the experience of network monitoring, networkization has undoubtedly become its primary choice; the education industry is obviously inclined to network monitoring due to the improvement of network infrastructure; In government agencies and public security “Safe City†projects, nearly 70% said they would choose network monitoring, and 20% said they would test and evaluate before deciding. Liu Zhiqiang, manager of the company's marketing department, said that the demand for the above-mentioned industry networking is increasing, which has led to the application of NVR systems in these industries, and the application of NVR systems has begun to expand rapidly.
The combination of NVR and Telecom's global eye and Netcom's wide-vision business has also enabled NVR products to move toward a broader application market. Xiong Hui, deputy general manager of Beijing Bonno Storage Technology Co., Ltd., revealed that the promotion of NVR and the business combination of network operators have gradually begun to show "power", with the deep resources that network operators have in the home, enterprise and other users. The development of network has greatly promoted the development of NVR. In addition to the gradual expansion of market applications, the transition of NVR system applications from small systems to large systems is also worth noting. Yang Weiqiang, director of marketing department of Jinsanli Video Technology (Shenzhen) Co., Ltd. introduced that the development of large-scale projects such as the safe city project and bank networking project, the demand for centralized monitoring also prompted the NVR system to enter the large-area centralized control system of these projects. For example, the Dongguan City Peaceful City project's rental housing city network monitoring project has nearly 10,000 monitoring points, more than 100T of storage capacity, because the rental housing is scattered in different areas of Dongguan, and the public security department needs centralized monitoring to control the social security situation, Therefore, the NVR system has been installed as its video surveillance storage and management system. It is reported that the current rental housing monitoring projects like Dongguan have been carried out in many cities, such as Wuhan and Zhejiang.
It can be seen from the combination of traditional analog and digital that the system architecture is limited by the matrix architecture. Zhu Bing, deputy director of multimedia products department of Hangzhou H3C Technologies Co., Ltd. pointed out that under the traditional modular combination, the expansion has reached a bottleneck, and the expansion of scale has become more and more demanding for manageability. As the most demanding area for massive video surveillance and storage, urban engineering has a high demand in this area. Therefore, the NVR solution that can solve the above problems has become the preferred solution for emerging safety projects.
In addition, the development of NVR products is also very rapid, laying a solid foundation for large-scale development. Jin Sanli, Parity Technology, Blue Star, Hangte, H3C, Tiandi Weiye, Bonuo, Liantewei and other manufacturers have started With the launch of its NVR system, Suzhou Keda also recently launched the 3.0 version of the NVR solution to complete its NVR system, which has greatly promoted the commercial process of NVR.
Second, embedded products can better meet market needs
At present, there is a big controversy about the product form of NVR in the industry. Based on the expressions of various manufacturers, the author believes that regardless of the division method, the general function is consistent, whether the functional module is solidified, whether it is more stable or easier to modify. With the upgrade, we can divide the product form of NVR into embedded and software platform, referred to as embedded NVR and software NVR.
With the expansion of practical applications, the development of NVR's product form has gradually become clear, and the embedded NVR system has gradually become the mainstream of applications.
According to the demand characteristics of the industry market, the manufacturers found that the demand for NVR systems in small projects and large projects has obvious differences: small projects in various industry markets have some common types, and more emphasis on the stability of the system, so it is targeted at this category. With the development of the market, NVR manufacturers have strengthened the development of embedded NVRs to promote their application in such markets; in large-scale projects, the integrated management platform has more emphasis on the management of video images, while the NVR in the form of back-end software is Affected by the powerful processing power of the CPU, it appears to be more complete in function, so it is also more "loved" by such users, and is more suitable in this market.
From the current development trend, we can know that the security market is gradually spreading from the professional market to various industry markets. Small chain stores, hotel chains, home applications, enterprises, factories and other projects have great potential for development. Therefore, embedded NVR Development has more advantages in new projects. Huang Qingqiu, deputy general manager of Shenzhen Yaode Electronics Co., Ltd. introduced that domestic application of codec technology is more interested in H.264, but it will consume a large part of CPU resources in the back-end processing, which determines the software. The application cost of the NVR system is relatively high and is only suitable for specific projects. With the advancement of integrated circuit technology, the embedded NVR can adopt a variety of different DSP integrated circuit designs to make the chip processing singular, improve the stability and performance of the product, and greatly accelerate the application speed.
In addition to a significant increase in stability, security is also a major factor in the development of embedded NVR. The Mifare “Safety Door Incident†in 2008 prompted the global security industry to increase its investment in information security. “In the embedded NVR system, the IP front-end uploads video data and AES encrypts the code stream. Can greatly improve the security of video data."
In addition, most of the current mainstream storage device DVRs also use embedded architecture, embedded NVR can adapt to the construction habits of engineering firms, and is conducive to promotion and smooth transition. H3C Zhu Bing agrees that foreign mainstream video surveillance and storage manufacturers have launched a number of embedded NVR products, and predicted that its development process is similar to the original DVR.
Third, all the way to sing songs all the way to the thorns
Although the NVR has achieved the most important step in the process of industrialization, we have also found through investigation that its development is not smooth, the future is still full of thorns, the pressure from the market environment, the users and engineers question, the current network bandwidth and The contradiction of monitoring clarity, the stability of the product itself and the operation design all affect the promotion of the NVR system.
The weak foundation of IP monitoring is fatal
From the survey results of various research institutions, it is not difficult to find that the domestic video surveillance application is still dominated by analog systems, and the foundation of IP surveillance is still quite weak. This has led to the awareness of the network application of the entire Chinese security network being far from waking up, which greatly hindered the The development of the NVR system.
Compared with the analog-digital system and the deep-rooted DVR, IP video surveillance only occupies a very small proportion in the domestic video surveillance market. According to A&S's 2007 network camera market survey, China's network cameras accounted for the Chinese camera market in 2007. The ratio is only 3%. Although the network camera has been growing at an extremely fast rate in the past two years, it is still in a “weak†position in the entire video surveillance market. “This has caused NVR users and market acceptance to remain too low,†said Yu Guanming, Director of Network Digital Division of Tianjin Tiandi Weiye Digital Technology Co., Ltd.. The development of the network video surveillance market is the most important indicator for NVR applications. Only the network The rapid development of the video surveillance market will fundamentally drive the scale of NVR applications.
In addition, the lack of IP front end has also had a great impact on the development of the NVR market. According to Kodak Liu Zhiqiang, the types of network cameras are still relatively simple, and it is difficult to meet various application requirements like the analog front end. It is gratifying to note that many traditional camera manufacturers will realize the transformation to network camera manufacturers through independent research and development, external cooperation, etc., and even provide network video surveillance overall solutions through cooperation with platform vendors, which will greatly enhance the IP front-end. Serialization and enrichment.
To be more cost-effective
The restriction of investment cost is also one of the most important issues for NVR promotion. Although the network video surveillance system and the NVR system can greatly save the cost of wiring, installation, debugging and maintenance, the current network camera, NVR system and analog camera, DVR system, due to the relationship between research and development costs and production costs, It seems to be high.
According to the functional profit and loss balance curve, it can be found that the application cost of NVR is most affected by the number of monitoring points, and its comprehensive cost in large projects has a great advantage, while in small systems it is too "luxury". Jindi Wang Shudong pointed out that the main promotion market of NVR is still in small-distribution projects, and the user's investment budget has a great impact on the promotion of NVR. Take chain stores as an example. Each store has only a few network cameras. One project has only a few dozen cameras in its entire city. Compared with the analog system, its expenditure has obvious differences.
In this regard, Huang Qingqiu believes that this needs to be viewed from two aspects: in a small system, deploying an NVR system does not have an advantage over the DVR system in terms of price. However, from the perspective of value, the network camera has achieved more than D1 resolution, and the video image can clearly see the details even after partial amplification. At the same time, the network is beneficial to improve the quality of the system integration, and the combination with the IVS can improve the monitoring. Quality, etc., its value has obvious advantages.
Network conditions need to be balanced with coding techniques
As an important part of networked video surveillance, the ability of NVR to adapt to network bandwidth and network stability is still questioned. What kind of coding technology is worthy of the industry's vigilance.
It is unrealistic to "run" multiple D1 full-time video streams with 2G public network. “China has a technology-advanced complex,†said Xu Yubo, an industry source. What coding technology is currently used in the coding process is more inclined to choose the rising star H.264. For projects based on urban comprehensive security monitoring, video data streams can be The transmission of the network or the local area network can satisfy the transmission of the high-code data stream and meet the user's need for monitoring details. However, in some projects that can only be monitored through the public network for networking, manufacturers must fully combine the needs of users and adopt a more appropriate compression method.
In addition, the way NVR applications are also worth noting. Xu Zhibin, vice president of Blue Star Software Technology Development Co., Ltd., introduced that the application of NVR system mostly adopts DVS+NVR. For a fully embedded system, the core cost difference is determined by the codec cost. Due to the development of DSP/ASIC, the capability of a single chip is generally greater than 1 D1. The coding capability of the NVR system is difficult to avoid, and the real-time live video view of the NVR needs to be decoded, so the cost of the DVS+NVR is much higher than that of the DVR. cost.
compatibility
Another major factor hindering the development of NVRs is the compatibility with network cameras.
It is understood that most of the NVR systems introduced by various manufacturers are only compatible with their own branded network cameras. For the NVR system that is in urgent need of expanding the application, the consequences are undoubtedly seriously hindering the development of the NVR market. It is more sturdy in some projects of phased construction or system transformation.
In this regard, Zhou Xun, general manager of China Science and Technology Co., Ltd. suggested that manufacturers should start with compatible brand products in order to be compatible with more products to meet the needs of new or modified systems in various industrial markets.
Fourth, NVR pk DVR, hybrid DVR / NVR
China's video surveillance market is in the process of transition from analog to digital and network. So what are the trends of DVR, hybrid DVR/NVR and NVR in the future market? The following will be based on the function curve for you. One by one introduction.
Based on the opinions of the manufacturers surveyed, NVR is the most suitable product for the network tide. The development prospects of the NVR are very clear. Many manufacturers have affirmed their future development. At the same time, the foundation of China's simulation market is still strong. The pace of digital and networked changes will take a long time. Therefore, DVR, hybrid DVR/NVR and NVR will coexist and compete in the market for a certain period of time.
First of all, NVR will gradually occupy a leading position in new projects, and there will be relatively large growth in some transformation projects. "From the current development curve of the domestic market, the application of NVR seems to be ahead of the curve." Yan Peiquan, marketing manager of Shenzhen Liante Micro Technology Co., Ltd. believes that NVR is undoubtedly an important part of the future video surveillance network, but At present, the application of NVR has begun to expand, but it is not a stage of rapid development. With the gradual deepening of the network process, the development of NVR will reach a period of high growth after three to five years, not only gradually occupying a considerable part of the new project. At the same time, it will be applied to the transformation of the original simulation system.
In view of the fact that large-scale simulation systems in the domestic market are difficult to change at one time, the DVR market will continue to develop until the networkization process has deepened development. Evening Technology Zhou Xun analysis believes that the current DVR market still maintains a compound annual growth rate of more than 7%, which is determined by its market base. In the next few years, NVR still has a certain space for development. Even when the network process has a certain thickness, the demand for local storage in a large number of large-scale projects still exists, but it will begin to gradually decrease. At that stage, the DVR can fade away its network-based functions, further reducing costs, and simply relying on local storage to continue to use its energy.
While the domestic video surveillance market is in a chaotic period of analog to network transformation, the hybrid DVR/NVR will become the “beneficial†product in this period, not only as a product of the transition period, but also the market itself. There are also special needs for DVR/NVR. De Huang Qingqiu believes that the video surveillance market in the transition period itself has a relatively large demand for products such as hybrid DVR/NVR, and in some projects such as water conservancy and electric power, which have strong requirements for real-time performance, the simulation system is partially The application of the venue will remain.
Combined with the DVR, hybrid DVR/NVR, NVR future development curve and the above analysis, the three types of storage devices will show a trend of “Hundreds of Flowers and Common Development†in the storage market within a few years.
Five, but the thorns will sing all the way
In summary, we can easily find that NVR has begun to enter a stage of rapid development, and its products have gradually matured and improved, and have found the “soil†that is most suitable for its development. The prospects have been obtained by video surveillance manufacturers. , the integrator, the engineering firm and the users are unanimously affirmed.
In order to better meet the needs of future video surveillance network management, many manufacturers have also said that they will gradually strengthen the functions and performance of NVR systems according to market feedback, such as strengthening their adaptability in high-definition video surveillance, and combining with IVS for intelligence. Management and application.
With rich functions and adapting to the characteristics of market development needs, the application prospects of NVR are beginning to be clear, but the thorns are thorny, and tomorrow will surely sing all the way!
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