Analysis of HD and Intelligent Status of Security Surveillance Chips

　　 With the rapid development of the security industry, especially the blowout of high-definition and intelligent demand, the entire industry has entered the digital age. As the core of digital security products, security chips have become a huge industry, and the development of security chips is also anti- Come over to determine the future development of the security industry and the direction of development. It is understood that a chip company used in the entry-level market DVR chip almost doubled in the first half of 2012, which also feedback the security chip market from one aspect. According to market information, the market capacity of security digital compression chips in 2011 has reached nearly 20 million. According to the current trend, in 2012, this number is likely to exceed 30 million, close to 40 million.

The huge market capacity has spawned a breakdown of the product. With the growth of the security chip market, the subdivision of security chips is also imperative. Compared with a single DSP chip when the security industry just started digitizing a few years ago, the current security chips have been subdivided into different types depending on the application, mainly in the following aspects:

(1) DVR/NVR chips, such as Hisilicon Semiconductor's Hi3515, Hi3520 for embedded DVR products and embedded NVR products, mainly focusing on multi-channel codec, multi-service management and high-rate storage requirements, currently The chip is the largest chip in the market, accounting for about 60% of the total number of main compression chips;

(2) IPC chips, used in network camera products, which are the products of the IPC market in the past two years. These chips focus on high-definition compression, intelligence and ISP processing. Currently, these chips are not as good as DVR/NVR chips. But it is foreseeable that after a period of time, such chips will occupy the vast majority of the security market share.

(3) Auxiliary chip, mainly used for intelligent and ISP business, mainly based on DSP and FPGA. In analog cameras, such DSP or FPGA chips for ISP are widely used. Since the current market capacity of intelligent analysis products is still in its infancy, the amount of DSP used for intelligent analysis products is small. As the integration of IPC chips becomes higher and higher, the functions of these auxiliary chips may eventually be merged into IPC chips.

The expansion of market capacity has also stimulated technological advancement and innovation. The technological development and innovation of security chips is represented by the progress of the main compression chip. The advancement of these technologies has driven the development of security products, determined the direction of security products, and brought restructuring of the security industry. The market competition pattern has also undergone major changes.

The most representative of these technological innovations is the birth of security-specific ASIC chips. 7-8 years ago, when security digital products were just beginning to become popular, most of the chips used were general-purpose DSPs, which were not specifically designed for the security industry. When used, they had higher technical thresholds and relatively higher costs. The birth of the video ASIC chip represented by HiSili's Hi3510 around 2005 has injected new vitality into the security industry. Although this chip is not designed specifically for the security industry, it has brought breakthroughs to the security industry. Subsequent security products have basically entered the ASIC era, including Hi 3512, Hi3511, Hi3515 released by HiSili, and DM365 and DM368 of Ti are already fully designed ASIC chips for security. The comprehensive popularity of security ASIC chips has two important significances. First, ASIC chips reduce the R&D and production thresholds of security digital products, enabling a large number of enterprises to enter and promote the maturity and development of the industry chain. Secondly, the digital products of security are greatly reduced. Cost and higher cost performance have further expanded the size of the security market.

More powerful codec capabilities are also an important area of ​​security chip innovation. Security chip from the original single-chip 2CIF to the current single-chip codec 32D1, its codec capability has increased by 64 times, which is a shocking technological advancement, and also laid a good foundation for the arrival of the security HD era. At present, the compression chip for HD cameras can already achieve 1080P@60fps under the H.264 encoding format, paving the way for the full application of HD in security. Another advantage brought by the improvement of coding capability is that the number of codec channels supported by a single chip is getting higher and higher. The most direct meaning is that the resolution of the DVR has basically entered the D1/4CIF era, and the 32-channel DVR of the single chip. The product has also been interviewed, and the NVR can support access to more IPCs, which can display and play back more channels.

The advancement of the encoding format is also one of the technological innovations of security chips. In the recent years of rapid development of security chips, the encoding method has gone through the process from H.263 to MPEG4 and then to H.264, although each encoding format is in The beginning of its life will be more tortuous, especially for the decoding ability of the back end is a huge challenge, but the pace of its innovation has never stopped. At present, basically more than 90% of security digital products have adopted the H.264 algorithm, and The new generation of H.265 algorithm has entered the research field of chip companies. It is expected that the H.265 encoding format will be fully applied to security digital products in 2-3 years, and the higher compression efficiency of the code stream will undoubtedly be said. Promote the security industry into a new era.

With the maturity of intelligent analysis algorithms in the past two years, the application of related intelligent products has begun to increase. Compared with the previous applause, smart analysis products have shown a rapid growth trend. Since the previous intelligent analysis products need to add a DSP or other computing chip separately to realize the analysis function, it is not ideal in terms of product development difficulty and cost consideration. How to solve this problem is a security product manufacturing company. Since the important concern, today's monitoring technology has taken the lead in successfully transplanting intelligent analysis algorithms to the ARM of codec chips, achieving extremely low-cost and efficient intelligent analysis, which also brings an important problem to the security industry to solve this problem. Ideas. With the improvement of the performance of security chips, there are now plans to integrate intelligent analysis engines into codec chips.

Compared with the previous single digital products, due to the current networking trend, the current security digital products, especially DVR and NVR products, have a lot of peripheral services, and multi-service capabilities have become an important factor in measuring security chip capabilities. These business capabilities typically include alarms, storage, forwarding, networking, display, and native business management. The addition of these services has made the integration of security chips more and more, and more and more tend to solve most of the problems in single-chip systems. This is also consistent with the development trend of microelectronics.

Although the current security chip market is developing rapidly and the outlook is optimistic, it also faces many development challenges.

The first is how quickly the speed of the chip can follow the development of products and industries. The current trend of security products is generally determined by security chips. If the chips are not released, the corresponding products will not be released. However, from the perspective of the current security industry, generally a half-year or so, a series of new product requirements will be born, and the current security chip update cycle is generally more than a year. This has caused the situation that the demand has been waiting for the chip. How can the development of the chip match the development of the demand, which brings a lot of pressure to the chip company, because it means that the labor cost is doubled and the market is replaced too much. Frequently, it also brings waste of production value. On the other hand, the security industry's segmentation of demand is becoming more and more obvious. The situation that a previous chip can be used on most products is now difficult to meet the needs of users. How to subdivide the chip and target it to meet the needs of users is also A problem.

Secondly, how to guide the healthy growth of the industrial chain. Due to the particularity and keyness of the security chip, the market behavior of security chip manufacturers can easily affect the development of the security industry. How to protect the market while expanding the market requires a lot of chip companies. considerate.

The cost control of the chip is also a challenge. At present, the number of major manufacturers of security chips is small, but the pressure of competition from each other is very great. In addition, the pressure from the terminal manufacturers caused by the decline in the overall profit of the security industry, the cost of intellectual property is also one. A lot of money.

The demand for energy saving, environmental protection and low power consumption is currently increasing the requirements of the relevant environmental protection departments for the power consumption of security products, and it is also a major indicator affecting product exports. Paradoxically, performance gains often depend on increased energy consumption.

In general, after years of development, security chips have made rapid progress. Both technology and market have achieved great success. In particular, domestic chips have achieved a dominant position. It is understood that HiSilicon's DVR The chip has already occupied 60% of the similar products, which is a point that domestic security colleagues should be proud of. Looking into the future, the development of security chips will become more and more rapid, and it will play an increasingly important role in the security industry chain. For security chip companies, opportunities and challenges coexist, and only close to users and rational development can maintain long-term progress. And steady growth.

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