Security Dealer & Integrator

JAN 2014

Find news and information for the executive corporate security director, CSO, facility manager and assets protection manager on issues of policy, products, incidents, risk management, threat assessments and preparedness.

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VIDEO SURVEILLANCE TRENDS & TECHNOLOGIES grators, the question is not whether IP surveillance offers the best solution — it is how to build that IP surveillance solution to meet all of your customer's needs. The Benefits IP cameras are getting smarter, becoming less expensive and are providing better resolution than ever. Multi-megapixel cameras, for example, feature resolution three to nine times greater than analog CCTV cameras and can be used for applications that require viewing of finer details, such as personal identification for security, or crime prevention, or applications like license plate capture or load validation in warehouse operations. Additionally, megapixel cameras can reduce the number of cameras that need to be deployed. Power over Ethernet (PoE) provides up to 15 watts of power to the edge device, which is more than enough for most IP cameras. Some of the newest cameras have a reduced energy footprint that requires as little as 2 watts of power. PoE+ extends power to approximately 25 watts to support such features as pan/tilt/zoom and heaters/blowers in outdoor enclosures. IP surveillance makes it possible to simultaneously record audio and video for better incident analysis for employee training, litigation and safety compliance assessments. Another benefit is that digitized footage from IP-based cameras stored on a network storage device can be easily searched, archived or even distributed using basic video management software. For industries that regulate video surveillance footage such as in gaming, archival and retrieval makes it easy to ensure compliance. Other common features/benefits include: Userselectable compression codecs, including H.264; security encryption; low-light sensitivity; webbased remote access; Video Management Software (VMS) support; integrated infrared illumination; SD card slot for local event-driven recording and motorized pan/tilt/zoom. Building an End-to-End Solution With all of the advantages of IP surveillance, there are also challenges that can be best dealt with by understanding and evaluating an end-to-end solution. 26 Central Management extends the reach of video surveillance networks, and gives the user the ability to control and configure the cameras centrally, from any location. Centralized management enables organizations to set policies for usage that enhance security and allow control of such features as automated snapshot, and event, alarm and motion detection. 802.11n Wireless enables you to place cameras in areas that extend beyond where it may be feasible to have a physical connection, such as a remote area of a parking lot or the edge of a large property. 802.11n is the latest IEEE standard for WiFi, enabling transfer rates of up to 660 MBPs over distances covering up to 300 meters between switches or access points. Managing bandwidth can only be done from the perspective of overall network capabilities. While improving data compression technology will continue to reduce the bandwidth required for streaming video, there is no question that careful planning and management is required. Quality of Service (QoS) is especially important for viewing surveillance in real time. If you are deploying video surveillance over a corporate IP network that also supports VoIP, you should have the IP cameras on their own VLAN or physical LAN and set QoS priorities appropriately to keep mission-critical functions such as order-taking from being swamped by video feeds. Network Storage: The expanded use of video can create challenges in managing both network bandwidth and network storage. The demand for storage used for video surveillance is expected to exceed 3.2 exabytes of capacity within the next three years, according to the research firm Global Information Inc., which also notes that iSCSI SANs are the fastest growing solution for video surveillance storage. ❚ Vance Kozik is Director of IP Surveillance Product Marketing for D-Link Systems Inc., which offers end-to-end IP surveillance systems with IP cameras, network switches, video storage devices and video management software. To request more info about D-Link, visit www.securityinfowatch. com/10455193. This article is adapted from a full whitepaper, which is available at www.securityinfowatch.com/11191610. www.SecurityInfoWatch.com | SD&I; | January 2014

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