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Watch and Learn
刊名：
EC&M
作者：
John Michael Shaver
刊号：
730B0003
ISSN：
0013-4260
出版年：
2007
年卷期：
2007, vol.106, no.6
页码：
26,29-30
总页数：
3
分类号：
TM05
语种：
eng
文摘：
Keeping an eye on new video surveillance technology Although expensive at their inception, technological advances made in the video surveillance arena in the last five to 10 years are now priced competitively, often costing the same or only slightly more than the protocols they were designed to replace. In fact, devices associated with the observation, recording, playback, and storage of events that were once considered "high end" are being used almost routinely in commercial building projects (Fig. 1 on page 29). With closed-circuit television (CCTV) applications occurring more frequently, it's important for designers, specifiers, and installers to keep pace with the rapidly changing technologies involved with these systems.
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