Axis F41 - Detectors; About Camera Tampering; Audio Detection

AXISF41MainUnit
Detectors
Detectors
Aboutcameratampering
CameraTamperingcangenerateanalarmwhenthecameraisrepositioned,orwhenthelensiscovered,spray-paintedorseverely
de-focused.Tosendanalarm,forexampleviaemail,anactionrulemustbesetup.
Howtoconguretamperingdetection
1.GotoDetectors>CameraTampering.
2.SettheMinimumduration,thatisthetimethatmustelapsebeforeanalarmisgenerated.Increasetimetoprevent
falsealarmsforknownconditionsthataffecttheimage.
3.SelectAlarmfordarkimagesifanalarmshouldbegeneratedwhenlightsaredimmedorturnedoff,orifthelensis
sprayed,covered,orrenderedseverelyoutoffocus.
4.ClickSave.
Howtocongureanactionrulefortamperingalarm
1.GotoEvents>ActionRules.
2.ClickAddtosetupanewactionrule.
3.EnteraNamefortheactionrule.
4.UnderCondition,selectDetectorsfromtheTriggerlist.
5.SelectTamperingfromthelistofdetectors.
6.Optionally,selectascheduleandsetadditionalconditions.
7.Selecttheaction.Example:Tosendanemail,selectSendNoticationandselectaRecipientfromthelistofdened
recipients.
Note
TheWhiletheruleisactiveoptionunderDurationcannotbeusedwithcameratampering,sincecameratamperingdoesnot
haveadurationandonceithasbeentriggereditwillnotautomaticallyreturntoitsuntriggeredstate.
Formoreinformationonactionsrules,seeEventsonpage38.
AudioDetection
TheAxisproductcanbeconguredtogenerateanalarmwhenaudiorisesaboveorfallsbelowthethresholdvalue.Thethreshold
valuecanbesetintherange0–100where0isthemostsensitiveand100theleastsensitive.
1.GotoDetectors>AudioDetection.
2.SettheaudioalarmlevelandclickSave.
3.GotoEvents>ActionRulesandsetupanactionrule,seeSetUpActionRulesonpage38.
DetectedaudioisindicatedbycoloredpeaksintheActivityindicator.Aneventistriggeredwhendetectedaudiorisesaboveorfalls
belowthethresholdvalue,whichisrepresentedbythebar.
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