Go into large-scale application of high-definition IP Camera
Domestic network video surveillance market is still no scale, facing a huge market, all kinds of camera products allow buyers dazzling, most users still on the sidelines. In some already built or under construction network monitoring system, the actual use of the process, there are still many technical and non-technical factors obstacle, so in the promotion and application, network cameras, still faces many challenges and obstacles. This paper discusses the application of network cameras scale factors.
Scale application of factors
As a network video monitoring system in the core equipment, application and popularization of network cameras network video surveillance represent the extent and stage of development. Needless to say, the IP Camera is gradually adapting to the diverse needs of current and future, will become the mainstream of video surveillance products. But for most users, network camera, its performance, stability and fusion, but also a clear and thorough understanding enough, the lack of in-depth, systematic analysis and research. Therefore, decisions, often have more concerns and doubts that dare to try, which is also largely affected the network cameras and network monitoring systems and a wide range of universal application.
With businesses to promote the Network Camera products actually encountered in the course of the many feedback, network cameras can basically scale promotion of the application of customary factors summarized as the core technology, network transmission, procurement costs, application value, resource integration and other six aspects.
1, the application of customary
First, the user concept has been formed from a kind of inertia, that the current market liquidity large, wide application, long survival time video surveillance products is the best choice, therefore, is still dominant market share of the DVR analog cameras became the most preferred customer or contractor. Although the number of bidding process, will absorb some of the network camera products in them, but often a combination of analog cameras with DVR program wins as a result. This network camera's view of this new generation of products, it will be in the invisible into a misunderstanding, the user will think of new technologies, new products will certainly be premature, prone to problems, such as the imposition of performance instability, system installation complexity by the external environment impact, operating difficult to master, and so shortcomings.
Visible changing concepts is constraining the development of network video surveillance fundamental factor, only look at new things change this concept in order to make faster and more comprehensive network cameras are understood and recognized, and play its due advantage. Of course, there are some industrial users, such as high Internet penetration, IT applications leading education, healthcare industry customers concerned, from system design, deployment, to the application, Web-based IP Camera monitoring system have been pleased to be selected, and also from the willingness to put in capital and other costs, this is a very good start, is bound to the popularity of network cameras have an important impact.
2, the core technology
Although domestic network video surveillance products can be said to contending, but most security vendors do not own the core technology, especially video and audio development, monitoring and management software development and image processing technology, still in the "ism" and "Zanji" A low level of technology. Such a unified standard and not really close to the domestic market demand, technological atmosphere, give security contractors and integrators to increase quite a lot of unnecessary trouble, often for a network video surveillance system solution, to find a variety of monitoring equipment manufacturers, patchwork, but also to integrate design, not only a waste of time and energy, but also increases the cost of procurement of technology and products, which can not really be achieved with international brands confrontation and competition, not to mention a station style system of solutions and services. In addition, the core of the network camera video compression technology itself, its development is constantly updated, so did not reach a mature stage.
Currently, HD IP Camera is widely used in image compression technology M-JPEG/MPEG-4/H.264 three ways, H.264 can get the highest compression ratio, the processing platform for the camera itself the highest demands. In order to obtain a higher resolution and achieve full real-time transmission, the mainstream manufacturers are using H.264 compression algorithm to achieve low bandwidth applications, but the actual effect can not let the user satisfaction, and due to technical and chip inputs and upgrades , also simultaneously increases the cost of the network camera.
3, the network transmission
Interactive network camera signals must be dependent on the network, but the lack of a domestic or a very good network environment, which is a very objective and realistic problems. Network video monitoring system, by definition is universal network video surveillance system deployment and application implementation. Network environment is the foundation of the network video monitoring system of the carrier, a good network environment in order to smooth network video and real-time provides a good protection. Digital video transmission need to occupy a larger network bandwidth resources in the LAN, the network environment, which can reach hundreds of megabytes access, Gigabit aggregation level, with the corresponding network transmission quality assurance measures, network bandwidth is fully security, network video surveillance system can also be fully demonstrate its features; however, network monitoring need to meet a wider range, more branches, more areas of application requirements, which requires network video needs to be transmitted in a WAN environment. While the domestic network status is very people can not let go, whether it is green, ADSL, CDMA, 3G, etc., have very limited bandwidth, and the actual and theoretical values vary greatly, compared with developed countries, China's so-called broadband, the vast Most also can only be defined as narrowband, digital video transmission will be faced with the dilemma of narrow roads and vehicles, resulting in the screen quality, screen interruption, delay too long, and so on. Therefore, there is a good network resources, will restrict the effect of network video surveillance system, it can not reflect the advantages of network video surveillance system.
4, the construction cost
Users for network camera, network video surveillance system construction costs have deep misconception that high price of network cameras and network video surveillance system, compared with, DVR systems, the cost is much lower. Admittedly, DVR device universal price situation being experienced, and rolled into the encoding and storage characteristics, but also many small and medium, lower project monitoring requirements to maintain the absolute cost advantage. However, as users demand gradually to the network, high-definition, intelligent, centralized management, systems integration direction, DVR systems are essentially already appeared to be inadequate. In fact, we have analyzed from another perspective, P2P IP Camera in function, has both analog cameras, DVR functions encoded with analog camera in price has not comparable.
If network video surveillance system construction costs, including hardware costs, implementation costs for analysis and accounting, to meet the needs of high-end applications in the premise, network video surveillance system construction cost is usually fairly basic system with DVR. But the reality point of view, many users already have the DVR system in use, if you want to carry out a system-wide network transformation, a lot of monitoring equipment will be dropped, does cause a huge waste of the original investment, it is difficult for users to accept and, therefore, the advantages of Network Camera although obvious, but in the actual product procurement and system construction, it is also necessary to protect the user as much as possible the original investment.
5, the application of value
Currently, the market in megapixels network camera for the mainstream, a lot of international and domestic manufacturers have introduced a full line of HD IP Camera products, and some manufacturers have been based on 3,000,000, 5,000,000 pixel network cameras. But HD network monitoring in the country, is not also correspondingly applied to various industries and fields, or a real problem. Such as low-light high-definition video processing, noise processing, the camera's internal ISP and SOC processing performance requirements are high, for more complex control environment at night less effective, and in fact the level of security at night than during the day should be higher, For bank ATM machines and other areas with a high level of monitoring is still a bottleneck.
While on the road monitoring, megapixels network camera for high-speed vehicles need to capture, in real-time control personnel facial features and details of the vehicle, for bayonet fill light, flash, exposure time, stream mode conversion, etc., the actual Applications are also not mature. Thus, the IP Camera products, in essence, there are still some really flawed, but not in some of the high demand, high level of security within the industry universal application. Also, users generally more accustomed to the full real-time video transmission, and the actual monitoring process, especially in the financial, energy, manufacturing enterprises, but also for demanding real-time monitoring. Coupled with the current needs of many wireless video transmission, network cameras can not achieve high image quality and smooth delicate complex requirements of video effects, delay problem is serious, can not meet the requirements of real-time high places. Therefore, the network video surveillance industry technology can solve the problem to see clearly, but in practice, there is also the practical application of various technical problems to be solved.
6, resource integration
As the trend of more and more IP surveillance vendors, channels, accepted by users, network camera surveillance products as a new trend, so that more manufacturers to join in the IP market. However, the complicated network camera technology also allows the industry chain cooperation between the manufacturers more closely. Lens, sensors, compression processing chip, three are indispensable, must through close cooperation, to improve compatibility with each other, understand each other characteristics and limitations in order to get a better image quality.
The video compression part, dependent on the chip makers and camera manufacturers in close collaboration with a software program to adjust and continually optimized in the details necessary for both sides closer cooperation. Chip makers face the issues raised by camera manufacturers, whether rapid response ability to solve problems in the network camera, especially megapixels era will become more prominent. And network monitoring system openness and integration features, also produced a more unified management and linkage alarm needs, its core is the management platform and multi-vendor IP Camera product compatibility integration, which requires network cameras manufacturers and platform vendors joined forces, together with complete network video surveillance project overall construction. At the same time, we must also soberly aware that video surveillance systems are also engaged in a technical standard of the dispute.
Closed with analog video surveillance systems, digital video surveillance system products and product systems to achieve compatibility between It has become severe in practical engineering problems. Different technical standards, will cause the device to search for real-time video, audio, metadata and control information on the interaction difficulties, therefore, the discussion on increasing the standard, the standard setter, can guide even control the entire industry, This is the most lucrative part, for which, ONVIF, PSIA two standards organizations are competing with each other, who the winner is still unknown.
Welcome to the P2P IP Camera manufacturers VStarcam website: http://www.vstarcam.com more information!
没有评论:
发表评论