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HD-over-coaxial: Ultimate battle for survival by analog manufacturers

Related tags: HDCVI, AHD, HDTVI, HD-SDI, ccHDtv, 960H solution

Information supplied by: Secutech www.asmag.com

The overarching view in the security industry right now is that IP, which employs a network infrastructure and offers HD video, will one day replace analog solutions, which have defined video surveillance for half a century. For analog players, who are seeing declines in sales and revenue, they must find ways to regain their former dominance in the industry. HD-overcoaxial solutions, which deliver HD video over users' existing coaxial cabling, represent their ultimate battle for survival amidst the IP invasion.

Ever since 960H and HD-SDI emerged in 2011, video surveillance players have been trying to find solutions that enhance the quality of CCTV, which remains the mainstream surveillance technology. Analog cameras are inexpensive and easy to install, and they still dominate the market with 70 to 80 percent of market share. However, IP cameras are threatening the very existence of analog players, who are seeing a steady revenue decline. Against this backdrop, analog players seeking to survive have put intensive efforts into the R&D of high-resolution HD-over-coaxial solutions. HDCVI, HDTVI, ccHDtv, and AHD are the products of those efforts.

Any HD-over-coaxial solution, be it 960H, HD-SDI, HDCVI, HDTVI, AHD, and ccHDtv, must be easy to use over the end user's legacy coaxial cable. HD transmission should be achieved using 5C-2V (RG-59U) or 3C-2V (RG-6) coaxial cable without quality loss, and the traditional distance barrier of 100 to 200 meters must be overcome. The solution must incur no extra cost for installation or upgrade, resist quality loss over a long distance, and enable easy upgrade to megapixel-level HD surveillance. Further, it must be high in quality and competitive in price to gain a stronger foothold in vertical markets. In summary, for a solution to be called HD-over-coaxial, six basic requirements must be met:

1. It must have high video clarity and color separation, as well as high signal filtering, noise reduction, and image restoration capabilities;

2 .As HD-over-coax is claimed as a breakthrough technology, it must be able to transmit signals for a longer distance over existing coaxial cable;

3 .The solution must not be subject to latency, compression-related quality loss, or any compromise to video quality;

4 The backend equipment must be compatible with the 960H format, and future compatibility with analog splitters and matrix systems must be considered;

5. HD-over-coax must be easy to use and operate and allow settings on both frontend and backend equipment;

6. Any solution must have low cost and high quality.

There are HD-over-coaxial DVRs that can support both 960H and 720/1080p. These are called hybrid HD DVRs. There are even HD DVRs that are bolstered by Intersil's decoder chip and the TCP/IP interface to support 960H, 720p/1080p, and IP signals. These are called Tri-brid HD DVRs.

Shenzhen Jiaxinjie Technology Co., Ltd is developing 720P HD CVI, CVR, 720P / 1080 P AHD, AHD DVR. For more details, please send inquiry to : info@szjxj.com or skype: jxjcctv