Datasheet

RangeChart
WiderangecoverageforAXISQ1931-E&AXISQ1931-EPTMount
FocallengthViewingangle
Human:1.8x0.5m
Criticaldimension:0.75m
Vehicle:1.4x4.0m
Criticaldimension:2.3m
mm
Horizontal
meters
yards
meters
yards
7
55°210230630689
1328°380
415
11601268
3510.7°10301 12631003390
Detection(1.5pixelsontarget)
Anobservercanseeanobject
606.2°1800196854005905
7
55°50
55
160
175
1328°9098300328
3510.7°260284800875
Recognition(6pixelsontarget)
Anobservercandistinguishanobject
606.2°44048013501476
7
55°25278087
1328°50
54
150165
3510.7°130142400437
Identication(12pixelsontarget)
Anobservercandistinguishaspecicobject
606.2°220240680
744
TherangesarecalculatedaccordingtoJohnson’scriteriaandvaryindifferentweatherconditions.
Environmentalconsiderations
Johnson’scriteriaassumeidealconditions.Theweatherconditionsat
sitewillaffectthethermalenergyemittedfromtheobjectanddecrease
theeffectivedetectionrange.Thedetectionrangeinthetablesaboveis
basedonatemperaturedifferenceof2°Cbetweenthetargetedobject
andthebackground.However,weatherconditionssuchasrain,snow
andfogwillattenuatetheradiatedenergyfromtheobjectsincetheheat
radiationfromtheobjectisscatteredwhenithitsparticlesintheair.To
avoidperformanceandreliabilityproblems,thecamerashouldalwaysbe
testedinitsintendedenvironment.
Thedifferenceinnumberofpixelsbetweendetection,recognitionand
identicationillustratedwithahumantarget.
Useofintelligentapplications
Thesensorinathermalcamerareactstodifferencesinthermalenergy.
Thus,thesensorislesssensitivetochanginglightconditions,darkness
andotherchallengingconditions.Thismakesthermalcamerasaperfect
platformtocombinewithintelligentvideoapplicationstobuildmoreef-
cient24/7surveillancesystems.ThroughourApplicationDevelopment
PartnerProgramAxiscanofferthewidestrangeofthirdpartyapplica-
tionsavailable.
Integratedwithintelligentvideoapplicationssuchasvideomotionde-
tectionortripwire,thecameracanautomaticallytriggeranalerttothe
operator.Tomaximizeperformanceoftheapplicationandsafeguardre-
liableoperation6pixelsacrosstheobjectisrecommendedandthesur-
roundingenvironmentalwaysneedstobeconsidered.