How to Design an Effective Video Surveillance System, Part II

While we discussed the top three components of a well-designed surveillance system, there are many more contributors to an overall effective system. The next components also offer a variety of available options depending on what is needed for your particular building and budget.

4. Storage – Video surveillance footage is often stored for long periods of time, the average ranging anywhere from 30 to 90 days. The two most important factors to consider when determining storage duration are the costs and the unique security risks your organization/building faces. Storage continues to become less expensive, but video surveillance demand for storage is large. Some of the main types of storage include internal (the most common and cost-effective type of storage using internal hard drives) DVR, NVR, and server. Another type of storage is directly attached, which is most commonly used in large camera count applications. This type stores video in outside hard drives and appliances such as NAS (network attached storage) or SANs. Storage clusters are another option, are IP-based and are the most emerging video storage trend. Multiple DVR’s, NVR’s, or servers stream video into storage clusters, or ‘pools.’ They are efficient and scalable for a large amount of cameras.

5. Video Analytics – These analytics simply scan out incoming feeds to either optimize storage or to identify security threats. Storage optimization is the most widely used application of video analytics. Also, using motion analytics can trim down storage consumption by 60 to 80 percent compared to continuous recording. Analytics are used to identify potential threats, the goal being to stop security breaches already in progress, like perimeter violations.

6. Viewing Video – Most video surveillance is done by people, and depending on the facility and its security threats, it may be viewed live and continuously. One of today’s viewing options is local viewing, directly from the DVR, NVR, or server, and is mainly applied to small facility sites. Remote PC viewing is the most common where standard PC’s are used to view live and recorded video, either from an installed application or using a web browser. The most recent is mobile viewing, made possible with the many mobile devices available today, offering convenience and immediacy. Lastly, there is video wall viewing, ideal for very large facilities with hundreds of cameras.

7. Integration – More and more organizations are integrating their systems, including video surveillance. The three options for this are access control as hub, electronic, or IP access control systems (the most common way to integrate systems). PSIM as hub is more sophisticated and specialized to deliver the most relevant information from video surveillance. Video management system as hub is an option that requires only limited integration. Video management systems add support for other security systems and management features.

Advanced Control Corporation provides building automation and integrated building solutions. Advanced Control has helped thousands of buildings improve their security systems, and is a trusted provider of access control and CCTV solutions in the market.