1 fps: 66 kbps
6 fps: 257 kbps
12 fps: 452 kbps
24 fps: 770 kbps
Here are some sample 1280x720 (720p) camera bandwidth requirements:
1 fps: 198 kbps
6 fps: 772 kbps
12 fps: 1356 kbps
24 fps: 2310 kbps
The above calculations are based on continuous viewing and recording. When we consider event recording, our storage and bandwidth can often be in the range of 10 to 20 percent of these figures, permitting, for example, four cameras in a typical convenience store to require approximately 220 kbps total bandwidth (to the cloud) of event recording at 640x480 resolution and 6 fps; and 31.6 GB per day of local NAS 1280x720 (720p) storage. Since NAS devices today offer 2TB of storage starting at less than $250.00, integrators can create this efficient solution for the end-user.
The drive for hosted video lives on
Cost-effective, Internet connectivity, coupled with efficient security devices are among the drivers for these hosted video deployments-which for the integrator creates enticing RMR opportunities. Ever-expanding network bandwidths and highly robust Internet security protocols are paving the way while highly-trained hosting service providers are emerging as viable alternatives to traditional in-house control.
Inexpensive, yet powerful NAS devices do their part to be used for onsite high-resolution storage as the user desires. But remember, this isn't just for storing HDTV quality video-it also provides peace-of-mind redundant storage for users who might be hesitant to let go of the idea of a proprietary storage device.
Finally, let's not forget about the power and attractiveness that mobile video will have in opting for a hosted solution. GSMA, a trade group for the mobile industry, predicts 15 billion mobile devices will be in use by 2020. Today's security professional approaches and analyzes data in many different ways and the hosting service provider is ready to deliver. As 4G networks continue their growth around the country, the hosting provider will be armed with more power. Smartphones and tablets connect securely to virtual private networks and allow authorized security personnel to monitor video from network cameras, disable card access and lock down doors in real-time. The security team can also search and retrieve archival information on-demand.
When considering hosted video solutions, remember that the current core market will be small camera count installations (typically less than 10) that are likely still using analog technology. With these solutions, users typically record video at five-to-eight frames per second at CIF or 4CIF resolution to save on internal storage. So, standard bandwidth capabilities permit the quality of network hosted video to be better than what they are used to with the world of analog.
Today's successful service provider not only recognizes the need to participate in this evolutionary virtualization of the security industry, but to succeed in it. The hosted service needs to be elastic and meet their customer's long-term security data usage, storage and monitoring needs.
Steve Surfaro is the security industry liaison for Axis Communications, Chelmsford, Mass., a global company focused on network video technology.