城市图像监控系统科学布点布局问题研究

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20113501(351)0,,、、,,、、、。1,,。[1-3]。,:1)。,,,、。2)。“”,,、。,、、,。3)。,、;,、。2,,。,,[4]。,,,,,,。:1),,。=/×100%。2),:1002-8692(2011)01-0107-04,,,(,200240)【】,。,,,,。【】;;【】TP277【】AStudyonScientificDistributionofMonitoringCameraforCityVideoSurveillanceFANYawen,ZHANGChongyang,ZHENGShibao,SHAOChangbin(InstituteofImageCommunicationandInformationProcessing,ShanghaiJiaoTongUniversity,Shanghai200240,China)【Abstract】Withtheincreasingoftheconstructionscaleforthecitypublicsafetyvideosurveillancesystem,howtodistributethemonitoringcamerascienticiallybecomesoneofthemostimportantissues.Inthispaper,onereasonablecriterionisproposedtoevaluatethecameradistributionefficiently.Basedonthiscriterion,onenovelmethodisproposedtodistributethesurveillancecamerascientifically,whichisdevelopedbymathematicalmodeling.Theproposedmethodishelpfultothestandardizationdevelopmentofcitypublicsafetyvideosurveillancesystems.【Keywords】videosurveillance;effectivecoverage;scientificdistributionVideoapplication&project10720113501(351)()112NNN+1,N,1111111111。,,,,。=/×100%。,,。,,,,、。,。3(),。,,;,(),。。,,。,、、,1。,:h();H();γ;2θ;R;d1;d2;T0。1)D,,。(-90°~+90°,360°),D=d2=2R=T02-h2姨-d1(1)D=2(d1+d2)=2T02-h2姨(2)2)S,。(-90°~+90°,360°),S=πR2=π(T02-h2姨-d)2/4(3)S=π(T02-h2姨)2=π(T02-h2)(4)4,、、、、,2。,。4.1、。,。、、、。,,1。,N,,。Videoapplication&project10820113501(351)4.2。、、、。,2。4.3,、、、。,、。1),:(1)、,。S,S,NN=1.21×SS+△N(5)(2),,。,,,D,NN=L/D+△N(6):△N,。2),,。。,,。4.4、。,、、。1)。,。2)。、、。,。3)。,。4.5,,。,、,,。,。:1),,、,,[5]。2),,110、、、、,。3),,,。4),,0~8km,。。()、LL/D,();,,,。、ML2×M×L/D,(M/2)。LL/D———2×L2×L/D———2×LL/D———(30m)LL/D———(30m)L2×L/D———2Videoapplication&project10920113501(351)5,,:1),、、,,。2)、、,,。。3),。。4)、、、,,。5),GIS,。6,2.19km2,。3,,。4、、。,116,327,149,202/km2。,,。,,。7,“”,,、、、,,。,。。,,。:[1].、[J].,2009(10):18-20.[2].[J].,2008(7):72-80.[3],.[J].,2010,34(4):103-105.[4],.[J].,2008(2):10-14.[5].[J].:,2009(11):178-183.笕:,,、;,,、;,,,、;,,。::2010-06-30/%1247439383115010081100200001497541383134124113170151851519909982187252010818149116297303272630:26,,。,、66、2。,22、36、()10,、、5,。1231,。,100。、、,30。Videoapplication&project110

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