Banerjee: 1. Use MPEG-4 (including H.264) in preference to Motion JPEG, 2. watch bandwidth and storage needs, and record at the edge if that helps, 3. move the intelligence to the edge through embedded video analytics so you don’t have to stream large amounts of video 24/7, 4. multichannel encoders with two network ports allow you to record at the edge by going Direct-to-iSCSI, which means zero bandwidth utilization, 5. keep all devices multicast-enabled which can reduce the amount of traffic on your network, but increases complexity of installation.
Gorovici: 1. Choose the right compression standard, 2. use advanced multicast technology (a network standard), 3. boost the quality of the video to increase efficiency in its management, 4. use Adaptive Visualization Technology (AVT) which provides the ability to more effectively process algorithms, 5. use camera sequences so that many cameras can be viewed over the same bandwidth as a single camera viewed full-time.
Blasofsel: 1. CODEC selection based on user requirements, 2. utilize VLAN, 3. minimize routers, 4. isolate IP recording traffic on layer edge three switches.
Lavery: 1. Determine the proper placement and amount of cameras needed, 2. determine whether cameras will record continuously or by specific events, 3. find out how many users will be viewing live or archiving video on a daily basis, 4. define whether the company’s existing network infrastructure can support the video, 5. set the frames-per-second (FPS) that is required without affecting overall performance, 6. calculate the amount of server storage that is required to accomplish the archived video requirements.
Monti: 1.capture accurate images in all lighting conditions, 2. have a global snap shutter to remove motion artifacts versus other cameras using analog image sensors, 3. support both CCTV and IP infrastructure with identical image capture to ensure consistency, 4. reduce network bandwidth and compression.
Do you think the industry is moving to separate networks for security versus using the existing data network? What’s the value in that approach? What skill-sets might it require for an integrator to build their own network?
Surfaro: Not really. The sophistication of virtually separating networks, rather than physical separation allows radically different content, like voice, data and video to co-exist on the same network. The value of physical network separation is ease of designing, provisioning and commissioning the video application on the dedicated network. An integrator will need to understand the guidelines for deploying a physically separate network within a corporation, even if it is not shared by other applications.
Banerjee: I agree that for peace of mind, it is moving towards independent networks which cross over at a certain point (gateway), with people who are on the data network able to view the video on demand.
Gorovici: Absolutely not. The only real value in a separate video network is the ability to more easily provide isolation in the event of a power failure so that battery backup can be provided for those critical cameras that are supported by Power over Ethernet (PoE). Today, networks are fairly simple to build and maintain if you follow the standards. It is always important to have staff members who have IT and computer skills in order to support both the network and video solution.
Blasofsel: Separate networks certainly have their place in the mission critical market segmentation based on internal and external threat analysis. We see users today utilizing existing network infrastructure by creating VLANS in the small- to mid-size commercial market space. Key skill sets include: network topology fundamentals, understanding of IP, firewalls, secure network devices and sources of internal/external threats.
Lavery: As prices of fiber optic cabling continue to decrease businesses will be pulling multiple strands of fiber throughout their facilities. It makes sense to separate the video network on its own dedicated network if it is available, eliminating any bandwidth concerns. The skill-sets required by the integrator include installing fiber optics, or in some cases, wireless radios. Integrators needs to be familiar with switches, routers, VLANs, firewalls and Virtual Private Networks (VPN) for wider access to video archives.