Analysis on the Development of Security Chip Technology in China
Security equipment industry is moving in the direction of specialization and high-performance high-speed development, a variety of standards and chip technology emerge in an endless stream. This article mainly discusses the security chip market development process, and the future development of China's security chip technology has made a prospect.
I. Introduction
In recent years, with the rapid development of security industry, especially the rapid popularization of HD and intelligent equipment, the market of security industry is rapidly expanding. Today, the scale of China's security electronics industry (excluding engineering and services) has rapidly expanded from 27.63 billion yuan in 2005 to 143.03 billion yuan in 2012, an average annual increase of over 20%, and it still maintains a strong growth momentum. Huge market potential. Security technology based on video processing, intelligent analysis technology as an extension, rely on video evidence of deterrent and intelligent early warning forward-looking, effectively combat all kinds of criminal acts, made a great contribution to social stability. Video compression as the core technology, but also in the years of practice to rapid development.
Second, security chip development status
In the security industry chain, in the upper reaches of the undoubtedly a variety of standard protocols, the standard protocol security chip design and production of a key guiding role, chip manufacturers according to the standard protocol designed for different types of applications such as chips, such as digital signal processing (DSPs), application specific integrated circuit chips (ASICs), system-on-chips (SOCs) with integrated solutions, and image sensing chips (CCD chips and CMOS chips) for image information acquisition. Video surveillance is currently the largest area of ​​security industry chip applications.
In terms of video compression standards, international standards for security compression have evolved from MPEG2 and MPEG4 to today's H.264 and H.265 standards, and their compression capabilities have been gradually increasing. These standards have achieved great success in the market. Currently, H.264 has become the mainstream standard in the field of security and even consumer applications, especially in the HD field. In 2013, the ITU organization introduced the H.265 standard and is expected to double the compression capacity of H.264. China has launched the AVS and SVAC standards, and already have practical product applications, domestic manufacturers have made unremitting efforts for their own standardization.
In terms of hardware, the chip technology has been continuously evolving since the video recording digitization. The early video compression uses the CPU of the PC to compress the image to process the image, which has the disadvantages of high cost, large volume, high power consumption and poor stability Disadvantages. With the development of embedded or chips, especially the popularization of DSP chips such as TI's TMS320OM642, the domestic security equipment manufacturers have switched to embedded DSP products due to the low cost advantage of device manufacturing and greatly improved reliability. After the domestic HiSilicon represented by the introduction of Hi3511 \ Hi3512 chip, TI introduced a series of chips DM6446, DM6467 and OM8168, SD and HD support for a higher level. This series of security chip performance and enhancements make the security equipment can be miniaturized and widely deployed in the front; security market to rapid development.
Throughout the video compression software and hardware development, the role of marketization can not be overlooked, ignoring the overall coordination of the industry chain and only introduced the standard is difficult to succeed. Today's video compression algorithm standards and embedded chips dominate the two complement each other and promote and develop each other. The standard of video compression algorithm has laid the theoretical foundation for product realization, pointed out the direction for the future development, and the chip has turned theory into reality, formed the product occupation market, effectively popularized the standard of video compression algorithm and got social recognition. Taking the video compression standard as an example, the MPEGZ and H.264 standards are widely used not only in the security industry but also in the television broadcasting, internet and consumer products. The algorithm optimization method, chip support and related practitioners are extremely rich, Improve the standard maturity and market acceptance, and reduce development costs; at the same time China launched the AVS standard - China's independent intellectual property rights with the second generation of source coding standards, "Advanced Information Technology Video Coding" series Standard abbreviation - Although the image quality and bit rate basically close to the level of H.264, but in the security industry has not formed a industrialization, the lack of overall industry support in the security industry's market needs to be improved.
Third, the problems faced
In the past two or three years, China's basic industries have made tremendous progress. IC design and production capacity have been able to approach the international advanced level and have the conditions and capabilities for industrialization. As a big country in the security industry, China has a domestic market of up to hundreds of billions and boasts a huge market advantage that is uniquely advantageous to the implementation of localization. Haas represented by the domestic manufacturers to seize the high-definition and H264 encoding for the pulse of the market, developed h.3512, h.3520, h.3531 and a series of high-performance chips to meet the low, medium and high and more File demand, has been a large number of manufacturers to use, its success for all to see.
At the same time, domestic chip manufacturers in many ways have the incomparable advantages of international manufacturers: First, the price advantage, compared to international manufacturers TI, Philips, ADI, etc., domestic chips tend to have the price advantage; it is also important to attract domestic equipment manufacturers to adopt One of the reasons; Second, the domestic chip makers pay more attention to the overall product solutions to grasp the function of the commonly used product package more perfect, equipment manufacturers only need to do less development can quickly complete the prototype; to reduce the development of human costs and Shorten the molding cycle of products are of great help; the same time, domestic manufacturers of China's security industry needs a lot of understanding, compared with foreign countries have local advantages; Third, the Chinese chip makers Chinese development materials and manuals are more perfect, making the domestic equipment development Personnel development efficiency greatly improved, which won the favor of many domestic developers. These advantages make the domestic chip makers and foreign manufacturers of OSP chip almost closed state with DSP simulation debugging environment is very small, making it difficult for Chinese chip makers to enter the high-end security equipment market, more difficult to enter the international arena. In addition, the domestic chip manufacturers mostly use the H.264 encoding standard, there is a huge commercial competition risks, in accordance with the provisions of the H.264 encoding library need to pay a certain fee to the MPEG-LA each year, which may be foreign manufacturers to domestic manufacturers A means of pressure, the lack of core standards will undoubtedly restrict the further development of domestic manufacturers.
Fourth, the future development of the road
Domestic manufacturers in the security market to occupy the leading edge, it is necessary from the industrial point of view to form an integrated solution, on the one hand to the domestic chip makers in hardware and software technology and development efforts to make the environment, on the other hand needs The state has formulated standards with independent intellectual property rights and applied to the security industry. In terms of standards, at present, China has drafted and released the SVAC standard, that is, "safety precautions video surveillance digital audio and video codec technology requirements", the English full name of Surveillance Video and Audio Coding, the standard by the National Standardization Management Committee of the national standard, Is the basic standard video surveillance system. The purpose of the SVAC standard is to establish advanced audio and video compilation that meets the needs of video surveillance
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