tailieunhanh - DIGITAL CCTV A Security Professional’s Guide phần 7

Cáp đồng trục được sử dụng chủ yếu cho việc truyền tải video analog. Nơi phổ biến nhất, nó sẽ được nhìn thấy, ngay cả với các hệ thống video kỹ thuật số, từ máy ảnh đến các thiết bị kiểm soát. Kể từ khi DVRs nhiều người vẫn còn yêu cầu một đầu vào video tương tự, họ vẫn được trang bị với kết nối BNC cho kết nối cáp đồng trục. | 11 Integrating Digital Video with Other Technologies One of the most interesting aspects of the security industry is the multifaceted utilization of its products and services. It is comparable to the communications industry in its versatility of end users and uses. Security products and services are found in many areas residential commercial public service transportation industrial and military. Not only does the security industry supply a limitless market it also combines with many cross markets to create efficiency and economy of products and services. Systems Integration became a security industry buzz word in the late 1990s and post Y2K era. Technology justified the term by making it possible to interconnect interface and integrate subsystems of countless varieties all of which resulted in a marked increase in security systems sales. Security system dealers and installers became more commonly known as systems integrators and integrated security systems simplified both maintenance and operations resulting in a reduced total cost of ownership. Customers want integration for the advantages it provides but barriers like custom and proprietary backbones of existing 179 180 Digital CCTV equipment have to be considered. Historically manufacturers believed having a proprietary protocol protected them from competitive vendors but today the opposite is true. Customers are demanding open architecture and common protocols in order to reap the benefits of integration such as the cost savings incurred from streamlined business processes and increased efficiency. The Security Industry Association SIA has identified the need to clarify systems integration and has created The Systems Integration Industry Group SIIG a group of security professionals who are tasked with defining integration and establishing methods and standards for the integration sector. The mission of SIIG is to create an environment where members of the Security Industry can gather to communicate the needs .

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