DVR发展有两个划时代标志，一是2000年由模拟到数字，另一个是2005年由PC到嵌入式，今年下半年有第三个划时代标志——数字DVR由CIF为主向D1发展。
但视频监控的图像质量不高这个问题已困扰安防企业十年了，主要有两个瓶颈：
第一个是存储，目前DVR散热只能考虑放8个硬盘，如果采用D1存储，容量远远大于CIF;
第二个是嵌入式DVR的主机成本，之前D1的机器一般比通路数CIF机器贵1-1.5倍左右，一个CIF机器的售价为4000元左右，而一个D1则为8000-10000元，成本居高导致一般的用户用不起。
这是通过产品方案成本的创新，将进一步推动行业的成长。D1普及之后，视频监控有更多市场机会。这样使得D1 DVR成为行业高速成长的助推器。安防行业也将有更广阔机会。
DVR不是简单的一个产品，它代表了一个行业的健康发展，从DVR过去所带来的机会到现在它如何影响安防行业，以及将来进一步推动安防行业发展，都是值得关注的。
DVR development has two landmark symbol, it is in 2000 by the analog to digital, the other one is from the PC to the embedded in 2005, the second half of this year a third epochal symbol - digital DVR by CIF primarily to D1.
However, the image quality of video monitoring is not high, which has been bothering security enterprises for a decade. There are two major bottlenecks:
The first is storage. At present, only 8 hard disks can be considered for DVR cooling. If D1 storage is adopted, the capacity is much larger than CIF.
Before the second one is the host cost of embedded DVR, D1 machine generally more expensive than pathway for CIF machine 1-1.5 times or so, a CIF machine sells for 4000 yuan, while a D1 is 8000-10000 yuan, the cost of high lead to the general users can't use.
This is through the innovation of product solution cost, will further promote the growth of the industry. After the popularization of D1, video monitoring has more market opportunities. In this way, D1 DVR becomes the industry's high-speed growth booster. The security industry will also have wider opportunities.
DVR is not simply a product, it represents a healthy development of the industry, from the DVR opportunities brought by the past to now, how does it affect the security industry, and further promote the development of security industry in the future, are worthy of attention.
