Digital hard disk video recorder (DVR) is used widely in monitoring programs. It will support existing analog cameras, the analog signal to digital and stored on computer hard disk. DVR solutions unattended, centralized monitoring embody the great advantage. In contrast, IP network monitoring will allow the user to add a station a time way to extend the camera, support remote access more easily manage the entire system. With the network video server price reduction, IP network video surveillance will be more and more attention. Digital signal transmission system as an important part, IPCamera will be the trend guide.
However, the limited network bandwidth, after all, without a good video surveillance system to support, they could easily transfer the consequences of delay or loss of data. Using effective transmission bandwidth monitoring image quality?
Texas Instruments DSP Business Development Manager China Zheng Xiaolong:
Video surveillance as an emerging market is continuing to experience some innovation waves, in which the rise of digital video compression technology greatly change the face of video surveillance applications, while the development of IP network video market, the traditional pattern of another far-reaching effects. Although the traditional CCTV video surveillance system based on there, but as a unified system is a closed private network, using a tape storage and difficult to intelligence, and extend up difficult. The digital video system using a distributed network technology, scalable converged IP network can support the hard drive HDD storage, easy to expand video content analysis capabilities, so there are more and more applications. However, a long time by the high cost of IP network video terminal trouble, the promotion is not very well, especially in the market, all with excellent cost-effective IP network cameras, little.
With the TI DM642 digital media processor introduced universal, but also promote the health of a group of core video server, and has been widely used; followed TI's DaVinci technology platform and also enhance the integration and cost-effective products. To more effectively promote the market transition to converged IP networks. United Micron TI (Aptina) jointly launched IP network camera reference design case, TI's TMS320DM355 and Aptina by high-resolution CMOS video sensor combination to record the full price to the IP network to meet the simulation requirements of video trends to ensure customer investment. The reference design
Characterized by a lower system cost, fully supports the IP convergence, with the scalability, real-time MPEG4 encoding HD 720P, supports dual stream video and audio compression, you can use Power over Ethernet, to expand video content analysis. In the hardware configuration, the nature of the design to achieve a variety of cameras, such as the basic type from low-cost camera solution and the whole functional products. Seamless connection with the TMS320DM355 CMOS sensor for capturing the entire space or visibility of the image, but also to focus on small but important details, the performance of its properties in the low interference signals, even in low light environment, performance is still good; good resolution, can achieve a similar CCD image quality; well as high sensitivity and high frame rate to capture a clear real-time video. In terms of software is a complete Linux-based IP network camera applications, including free source code; dual stream capability
MPEG4HD720P + MPEG4CIF + G.711 or MPEG4HD720P + MJPEGCIF + G.711, which have been tested practice of audio and video compression algorithms available free of charge; integrated auto white balance and auto exposure functions; can support multiple target area of the motion detection; IPNC software framework for the Da Vinci system, including I / O's API, Media API and DaVinci Codec Engine. Also able to add another DaVinci TMS320DM643x complete video analysis.
In short, IP network video surveillance market, business opportunities, TI timely introduction of HD IP network camera reference design, will look forward to leading the new trend. The future, TI has been planned and implemented new, more impact of product platforms and programs to accelerate the development of the market depth.
Hanbang Tech Digital Technology Co., Ltd. Technical Director Zhang Haifeng:
Network video surveillance is an inevitable trend for large-scale network system, generally used more than the video product, which on the product between the "Internet exchange" put forward demands, together with a network system widely used in the public Internet, network data security refers to the agenda, the need to establish full Internet standard and safety certification system could protect the industry's healthy development.
Recalling 2007, DVR industry has made great progress in its application from the professional security market has gradually spread into various other industries, the market volume doubled and redoubled. DVR from a product development point of view there are two aspects, one network's development, and second, the development of customized directions. Currently most common type of DVR products, applications in different industries are the same type of product, the process of development in the market, there will be more segments of product applications, more emphasis on practical application requirements. DVR 2007 is also the core technology major step year, the video compression technology, 4-way single core technology from the developed to the 8-way single core technology. The technology of the DVR range of products and future development patterns have a profound impact on the one hand, increased integration with the product reliability has improved significantly, the product has been better control costs, while enhancing the core technology DVR product development for the future and lay a solid technology that enables intelligent technology, network technology, and industry custom functions can be fully DVR platform development.
Hanbang Tech in November 2006 launched the first 8-way single core technology, the new generation 2007 series DVR card HB18, HB8000 series DVR are based on this technology. Single 8-way technology, the core point is this: In the same chip processing capabilities, to maximize the adoption of this technology to play its role, the former technical capacity can handle 4 Road, is now to ensure product performance in the case, to achieve the level of processing 8. Currently on the market a number of other manufacturers also developed a similar technology, compared to the overall performance of Hanbang there enough advantages, 8-way real-time protection while still providing dual stream compression.
The form of products of view, PC-DVR traditional application model has a very mature, intelligent, great space for development; embedded DVR has become a model to adapt to a variety of applications products, the combination of industry applications are already visible, the market great potential; with web-based application model of DVS products are popular in industrial applications, IP camera market prospects for the industry to further praise.
To achieve "interoperability Internet" is the cornerstone of the rapid development of the industry, and now China Telecom and China Netcom's "Global Eye" and "wide horizon" has been applied in some regions. Ministry of Public Security is currently being developed at the same time, "3111" of a series of standards, to achieve "interoperability Internet" is a very complex process, technical and involves a large, still have a lot of work to do, and truly "interoperable Internet" is a long-term process. Hanbang Tech has the full support of the latest China Telecom and China Netcom's "Global Eye" and "wide horizon" standard, but also with a number of industries achieve network integration management software Internet, can provide a complete solution for different industries. In order to achieve integrated management system, parti-tech research and development of the universal decoder card can support a variety of manufacturers to solve a variety of products in one integrated platform management applications, to solve the long-troubled industry, a major obstacle to the application.
To compare the current technical level, domestic manufacturers and foreign control of the DVR 技术 some factory owners, and no difference, can only say their own characteristic distribution However, the global DVR market situation, the foreign DVR 市场 which has always been Pi Taiwan and South Korea's supply monopoly. Current situation has begun to change, with the last two years of domestic enterprises in the overseas market cultivation, the market in Europe and the United States gradually establish a trust, products began to enter the international mainstream market in the near future China will become the world DVR Centre
