Eagle Eye Application Note - AN038 

Eagle Eye VMS Understanding Impact and How To Use Bandwidth Calculations

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When calculating bandwidth, there are three main factors that need to be considered:

3. The Resolution of each video stream
4. The Frame Rate and Compression Value of each video stream (Bitrate)
5. The Expected Percentage of Motion Activity within a 24-hour period of each video stream (Duty Cycle)

A single camera calculation can be made as follows:

Camera Bitrate (kbps) X Camera Duty Cycle % = Minimum Bandwidth Required

Example: (1 Camera with 1MegaPixel Resolution streaming at 12 FPS), with a 50% Duty Cycle

(1x1000kbps) X .50 = 500kbps Minimum Bandwidth Required

Note: Camera Bitrate is determined by the camera Resolution and Quality settings. The VMS determines the best bitrate for each camera based on these settings. However, Users may select a higher or lower bitrate if required.

There are three main considerations for determining how much Bandwidth an entire system deployment may require.

1. The Full Video Stream of each camera - the high resolution, high frame rate video recorded for historical review and streamed for live viewing.
2. The Preview Stream - the low resolution, low frame rate video used for system analysis and layout displays.
3. The Number of Concurrent Users - Users actively accessing live video and historical video of separate cameras within concurrent User Sessions.

Calculating these considerations with the Eagle Eye VMS Bridge Wizard will provide two recommendations:

1. Cloud Bandwidth Needed Daily Average (Mb/s) -  The amount of bandwidth needed to synchronize the entire system’s video to the Eagle Eye Cloud.
2. Suggested Bandwidth For Live Viewing (Mb/s) - The amount of bandwidth required to stream live Full Video to concurrent users.

The Eagle Eye VMS Bridge Wizard can be found at https://een.com/eevmswizard.