User Manual

Table Of Contents

AXISM42NetworkCameraSeries

Troubleshooting

‘Cameranot

available’displayedin

AXISCameraStation,or

‘Errorreadingvideostream’

messageinbrowserwhen

usingtheJavaapplet

•Aninstalledandrunningapplication,suchasAXISVideoMotionDetection,willalways

consumeavideostream,whetheritisusedornot.Astoppedapplicationdoesnot

consumeavideostream.

Thecameracandelivermorethanfoursimultaneousstreamsprovidedthecongurationofany

additionalstreamisidenticaltoanyoftherstfourstreams.Identicalcongurationimpliesexactly

thesameresolution,framerate,compression,videoformat,rotationetc.Formoreinformationsee

thewhitepaper“Maxnumberofuniquevideostreamcongurations”,availableataxis.com

Performanceconsiderations

Whensettingupyoursystem,itisimportanttoconsiderhowvarioussettingsandsituationsaffecttheperformance.Somefactors

affecttheamountofbandwidth(thebitrate)required,otherscanaffecttheframerate,andsomeaffectboth.Iftheloadonthe

CPUreachesitsmaximum,thisalsoaffectstheframerate.

Thefollowingfactorsarethemostimportanttoconsider:

•Highimageresolutionorlowercompressionlevelsresultinimagescontainingmoredatawhichinturnaffectsthe

bandwidth.

•RotatingthelensmanuallywillresultinbetterperformancecomparedtorotatingtheimagefromtheGUI.

•AccessbylargenumbersofMotionJPEGorunicastH.264clientsaffectsthebandwidth.

•Simultaneousviewingofdifferentstreams(resolution,compression)bydifferentclientsaffectsbothframerateand

bandwidth.

Useidenticalstreamswhereverpossibletomaintainahighframerate.Streamprolescanbeusedtoensurethat

streamsareidentical.

•AccessingMotionJPEGandH.264videostreamssimultaneouslyaffectsbothframerateandbandwidth.

•Heavyusageofeventsettingsaffectstheproduct’sCPUloadwhichinturnaffectstheframerate.

•UsingHTTPSmayreduceframerate,inparticularifstreamingMotionJPEG.

•Heavynetworkutilizationduetopoorinfrastructureaffectsthebandwidth.

•Viewingonpoorlyperformingclientcomputerslowersperceivedperformanceandaffectsframerate.

•RunningmultipleAXISCameraApplicationPlatform(ACAP)applicationssimultaneouslymayaffecttheframerateand

thegeneralperformance.