Security monitoring chip application types and technological innovation

With the rapid development of the security industry, especially the blowout of high-definition and intelligent requirements, the entire industry has fully entered the digital era, and as the core of digital security products, security chips have become a huge industry, and the development of security chips is also anti- It came to determine the future development context and direction of the security industry. It is understood that the chip used by a chip company for the entry-level market DVR has almost doubled year-on-year growth in the first half of 2012, which also feeds the security chip market from one aspect. According to market information, the security digital compression chip market capacity in 2011 was close to 20 million. According to current trends, this number is likely to exceed 30 million in 2012, close to the level of 40 million.

The huge market capacity has spawned product segmentation. With the growth of the security chip market, the breakdown of security chips is also imperative. Compared with the single DSP chip when the security industry just started to digitize a few years ago, the current security chip has been subdivided into different types according to different applications, mainly in the following aspects:

(1) DVR / NVR chips, such as Hi3515 and Hi3520 of HiSilicon, are used in embedded DVR products and embedded NVR products, mainly focusing on the needs of multi-channel codec, multi-service management and high bit rate storage. The chip is the largest type of chip in the market, accounting for about 60% of the number of main compressed chips;

(2) IPC chips are used in network camera products, which are gradually mature products in the IPC market in the past two years. These chips focus on high-definition compression, intelligence and ISP processing. At present, the market capacity of these chips is 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 chips, mainly used for intelligence and ISP business, mainly DSP and FPGA, in analog cameras, such DSP or FPGA chips for ISP are widely used. Since the market capacity of intelligent analysis products is still in its infancy, the amount of DSP used for intelligent analysis products is relatively 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 progress and innovation. The technological development and innovation of security chips are represented by the progress of main compression chips. These technological advances have driven the development of security products and determined the direction of security products. At the same time, they have also brought about a structural reorganization for the security industry, and major changes have taken place in the market competition landscape.

The most representative of these technological innovations is the birth of security-specific ASIC chips. 7-8 years ago, when the digital security products just started to popularize, most of the chips used were general-purpose DSPs. They were not specifically designed for the security industry. When they were used, they had higher technical thresholds and relatively higher costs. The birth of the video ASIC chip represented by HiSilicon Hi3510 injects new vitality into the security industry around 2005. Although this chip is not specifically designed for the security industry, it has brought a breakthrough to the security industry. Subsequent security products have basically stepped into the ASIC era, including Hi3512, Hi3511, Hi3515 released by HiSilicon later, TI's DM365, DM368, etc. are all ASIC chips designed for security. The comprehensive popularization of security ASIC chips has two important meanings. First, ASIC chips lower the threshold for the development and production of security digital products, which allows a large number of enterprises to enter and promote the maturity and development of the industrial chain; second, it greatly reduces the security digital products. The products with higher cost and higher cost performance have further expanded the security market.

More powerful codec capabilities are also an important area of ​​security chip innovation. Security chip from the first single-chip codec 2CIF to the current single-chip codec 32D1, its codec capacity has increased by as much as 64 times, this is a shocking technological progress, and also laid a good foundation for the arrival of the era of high-definition security At present, the compression chip used for high-definition cameras can already achieve 1080P @ 60fps in the H.264 encoding format, paving the way for the comprehensive application of high-definition in security. Another benefit brought by the improvement of encoding capacity 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 DVR has basically entered the D1 / 4CIF era, while the 32-channel DVR of a single chip The product has also been interviewed, and NVR can support access to more IPCs, and can display and playback more channels.

The progress of the encoding format is also one of the technological innovations of the security chip. In the recent years of rapid development of the security chip, the encoding method has gone through the process from H.263 to MPEG4, and then to H.264, although each encoding format is in At the beginning of its life, it will be more and more tortuous, especially for the decoding ability of the back end is a huge challenge, but its pace of 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 scope of chip companies. It is expected that in about 2-3 years, the H.265 encoding format will be fully applied to security digital products. The higher the compression efficiency and the lower the encoding code stream, there is no doubt that 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 also begun to increase. Compared with the previous applause, now intelligent analysis products have shown a rapid growth trend. Because the previous intelligent analysis products all need to add a DSP or other arithmetic chips to realize the analysis function, it is not ideal no matter in the difficulty of product development or in cost considerations. How to solve this problem has always been a security product manufacturing enterprise. An important concern since then, today's monitoring technology has taken the lead in successfully porting the intelligent analysis algorithm to the ARM of the codec chip, achieving extremely low-cost and efficient intelligent analysis, which also brings an important solution to this problem for the security industry Ideas. With the improvement of the security chip performance, there are now plans to integrate the intelligent analysis engine into the codec chip.

Compared with the single function of the previous digital products, due to the current networking trend, the current security digital products, especially DVR and NVR products, have many peripheral services, and multi-service capabilities have become an important factor in measuring the security chip capabilities. These business capabilities generally include alarm, storage, forwarding, network, display, and local business management. The addition of these services makes the integration of security chips higher and higher, and more and more tends to solve most of the problems with single-chip systems, which is also very 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 keeps up with the development of products and industries. The current security product roadmap trend is generally determined by the security chip. If the chip is not released, the corresponding product will be basically unable to be released. However, from the perspective of the current security industry, generally a series of new product needs will be born in about half a year, and the current security chip update cycle is generally a little more than a year. This has created a situation where demand has been waiting for the chip. How can the development of the chip be matched with 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 replacement is too much. Frequently also leads to a waste of output value. On the other hand, the security industry's breakdown of demand is becoming more and more obvious. The previous situation where a chip can be used in most products is now difficult to meet the needs of users. How to subdivide the chip is targeted to meet the needs of users. A puzzle.

The second is how to guide the healthy growth of the industrial chain. Due to the particularity and criticality of security chips, 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, there are not many major manufacturers of security chips, but the pressure to compete with each other is very large. In addition, there is pressure from terminal manufacturers due to the decline in the overall profit of the security industry. The cost of intellectual property is also one. A large expenditure.

The demand for energy saving, environmental protection and low power consumption, the current environmental protection departments have increasingly higher requirements for the power consumption of security products, and it is also a major indicator that affects the export of products. Paradoxically, performance improvement often relies on increased energy consumption.

Overall, security chips have made rapid progress after recent years of development. Both the technology and the market have achieved great success, especially domestic chips have achieved a dominant position. It is understood that Hisilicon ’s DVR The chip has occupied 60% of the similar products, which is a point of pride for domestic security colleagues. Looking into the future, the development of security chips will be more rapid, and it will also play an increasingly important role in the security industry chain. For security chip companies, opportunities and challenges coexist. Only by staying close to users and developing rationally can we maintain long-term progress. And steady growth.

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