DIGITAL CCTV A Security Professional’s Guide phần 5 docx

... increase the amount of data that can be transferred over analog cellular systems. TDMA is also the access technique used in the European digital standard (GSM) and the Japanese digital standard, ... twisted-pair wire) ● 100BASE-FX (a two-strand optical fi ber cable) There is a vast scope of applications, and the various methods are mutating and evolving at a rapid pace. 132 Digi...

Ngày tải lên: 12/08/2014, 16:21

... Netherlands ● SAI—Standards Australia International ● SANZ—Standards Association of New Zealand, New Zealand ● NSF—Norges Standardiseringsforbund, Norway ● DS—Dansk Standard, Denmark The ... are several organizations responsible for defi ning standards, includ- ing the American National Standards Institute, the International Organization for Standardization, and the International ... i...

Ngày tải lên: 12/08/2014, 16:21

... TOKYO Butterworth-Heinemann is an imprint of Elsevier A Security Professional’s Guide 4 Digital CCTV are created when electrically charged particles, such as electrons, are made to move. As the charged particles ... 233 v a tape or a record. With all of the advancements available in digital technology, it is not as “perfect” as analog video and does present a variety of...

Ngày tải lên: 12/08/2014, 16:21

... what they all mean. This brings us around to the question “How digital is it?” It is possible to have analog cameras and monitors, use coaxial cable, and have a DVR, and call that a digital ... advantage here is that a trade off can be made between fi le size and output image quality. This capability allows the image quality to be adjusted to an acceptable condition as the appli...

Ngày tải lên: 12/08/2014, 16:21

... video data captured. A networked digital video management system is a perfect example of how to add camera “eyes” to an airport, or any facility, and automate the alarm triggers on the data captured ... footage from inside and outside, store operational data, and generally improve the quality and safety of public transportation. The Santa Clara Valley Transportation Authority (VTA) o...

Ngày tải lên: 12/08/2014, 16:21

... false alarm dilemma. False alarm fi nes can range from $20 to $ 250 or more. If false alarm fi nes are affecting a company’s profi tability, remote video alarm verifi cation can help dramatically reduce ... the alarm location, assess the information, and take appropriate actions to alleviate the situation. Unnecessary calls to law enforcement are virtually eliminated. Another distinct adv...

Ngày tải lên: 12/08/2014, 16:21

... Monterey, California can now access real-time pictures and data 212 Digital CCTV years, manufacturing plants have been automating their produc- tion facilities at an increasing rate, augmenting ... nition, 2 25 image generation, 2 5 ANSI, see American National Standards Institute Antenna, features, 130 Arpaio, Joe, 192 Aspect ratio, defi nition, 2 25 Asynchronous, defi nition, 2 25 2...

Ngày tải lên: 12/08/2014, 16:21

... important to understand that you can convert an analog signal to representative numbers and then convert it back again to an analog signal that is an accu- rate representation of the original ... transmission is coaxial cable with a characteristic impedance of 75 Ohms (Ω). An RG -59 type coaxial cable, about 1 / 4 inch in diameter, can carry a video signal of one volt peak-to-peak...

Ngày tải lên: 27/06/2014, 11:20

... (Java), data, and metadata (XML) through Web Services offers additional options and flexibility. So what does Java mean to an Oracle DBA? Java is a core language that is integrated in the Oracle ... a hierarchical data structure that describes data by embedding the metadata with the data structure. Java has become the primary language for new applications that are written for Oracle dat...

Ngày tải lên: 08/08/2014, 20:21

... services. Amount of leave: In addition to unlimited leave for active duty, 5 to 10 days leave each year to attend state national guard training camp. State Laws on Military Leave (continued) WORKPLACE ... as far in advance as possible. If you must miss a full day of work for reasons other than vacation, sick leave or other approved leave (such as leave to serve on a jury or for a deat...

Ngày tải lên: 24/07/2014, 08:20