Axis 213 PTZ User Manual
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Contents
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62 AXIS 213 - Technical SpecificationsGeneral performance considerationsWhen setting up the camera, it is important to consider how various settings andsituations will affect performance. Some factors affect the amount of bandwidth (thebit rate) required, others can affect the frame rate, and some will affect both. If theload on the CPU reaches its maximum, this will also affect the frame rate.The following factors are among the most important to consider:• High image resolutions and/or lower compression levels result in largerimages. Bandwidth affected.• Access by large numbers of Motion JPEG and/or unicast MPEG-4 clients.Bandwidth affected.• Simultaneous viewing of different streams (resolution, compression, etc.) bymany clients. Frame rate and bandwidth affected.• Accessing both Motion JPEG and MPEG-4 video streams simultaneously.Frame rate and bandwidth affected.• Heavy usage of event settings affects the CPU load. Frame rate affected.• Enabled motion detection. Frame rate and bandwidth affected.• Heavy network utilization due to poor infrastructure. Bandwidth affected.• Viewing on poorly performing client PC lowers perceived performance.Frame rate affected.• Access by large number of audio clients using full-duplex mode. Bandwidthaffected.Optimizing your systemTo see the bandwidth and frame rate currently required by the video stream, the AXIS213 provides a tool that can be used to display these values directly in the videoimage.To do this, special format strings are added aspart of a text overlay. Simply add #r (averageframe rate in fps) and/or #b (averagebandwidth in Kbps) to the overlay.For detailed instructions, please see the onlinehelp for Video & Image > Overlay Settings,and the help for File Naming & Date/Time Formats. |
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