物联网工程实施Read-设备选型

安防子系统设备选型SelectionofSecuritySubsystemEquipment设备组成

EquipmentComposition安防子系统Securitysubsystem传感器设备Sensor执行器设备Actuator设备组成

EquipmentComposition安防子系统Securitysubsystem传感器设备Sensor执行器设备Actuator传感器Sensor传感器是一种能感受规定的被测量并按照一定的规律将其转换成可用信号的器件或装置。Asensorisadeviceordevicethatcansenseaspecifiedmeasuredsignalandconvertitintoausablesignalaccordingtoacertainpattern.被测信号measuredsignal电信号Electricalsignal传感器分类

Sensorclassification按输出信号分类Classificationbyoutputsignal模拟量传感器Analogsensor开关量传感器Switchsensor数字量传感器Digitalsensor膺数字传感器Fakedigitalsensor传感器分类

Sensorclassification按连接方式分类Classifiedbyconnectionmethod无线传感器Wirelesssensor有线传感器Wiredsensor传感器分类

Sensorclassification按接线数量分类Classifiedbywiringquantity两线制传感器Twowiresensor三线制传感器Threewiresensor四线制传感器Fourwiresensor传感器分类

Sensorclassification按接线数量分类Classifiedbywiringquantity两线制传感器Twowiresensor三线制传感器Threewiresensor四线制传感器Fourwiresensor安防子系统传感器的选用

Equipmentselection社区安防子系统部署在社区内，实现防火、防盗等安防功能。由于需要保证系统工作状态稳定、可靠，因此，系统部署有线形式的传感器和执行器设备。Thecommunitysecuritysubsystemisdeployedinthecommunitytoimplementsecurityfunctionssuchasfirepreventionandtheftprevention.Duetotheneedtoensurethatthesystemisworkinginastableandreliablestate,undernormalcircumstances,thesystemdeployswiredsensorsandactuatordevices.安防子系统传感器的选用Equipmentselection开关量传感器Switchquantitysensor火焰传感器flamesensorExtractingCasesfromReal烟雾传感器smokesensor人体传感器bodysensor红外对射传感器infraredsensor安防子系统传感器的选用Equipmentselection开关量传感器Switchquantitysensor火焰传感器flamesensorExtractingCasesfromReal

烟雾传感器smokesensor人体传感器bodysensor红外对射传感器infraredsensor设备介绍—有线火焰传感器Wiredflamesensor火焰传感器是用来检测火源的传感器，也可以检测光线的亮度。火焰传感器利用红外线对火焰非常敏感的特点，使用特制的红外线接收管检测火焰，将火焰的亮度转换为高低变化的电平信号。Theflamesensorisasensorusedtodetectthesourceoffireandcanalsodetectthebrightnessoflight.Theflamesensorusesthecharacteristicthatinfraredraysareverysensitivetoflames,usesaspecialinfraredreceivertubetodetecttheflame,andconvertsthebrightnessoftheflameintoalevelsignalwithhighandlowchanges.安防子系统传感器的选用Equipmentselection开关量传感器Switchquantitysensor火焰传感器flamesensorExtractingCasesfromReal烟雾传感器smokesensor人体传感器bodysensor红外对射传感器infraredsensor设备介绍—有线烟雾传感器Wiredsmokesensor烟雾传感器用于探测烟雾，实现火灾检测。烟雾传感器能够将烟雾的多少转换成高低变化的电平信号。Thesmokesensorisusedtodetectsmokeandrealizefiredetection.Thesmokesensorcanconverttheamountofsmokeintoalevelsignalthatchangesfromhightolow.安防子系统传感器的选用Equipmentselection开关量传感器Switchquantitysensor火焰传感器flamesensorExtractingCasesfromReal烟雾传感器smokesensor人体传感器bodysensor红外对射传感器infraredsensor设备介绍—有线人体传感器Wiredbodysensor人体传感器也称人体接近传感器，是一种利用微波多普勒原理实现人体或物体移动检测的传感器。Thehumanbodysensorisalsocalledthehumanbodyproximitysensor,whichisasensorthatusesthemicrowaveDopplerprincipletodetectthemovementofthehumanbodyoranobject.安防子系统传感器的选用Equipmentselection开关量传感器Switchquantitysensor火焰传感器flamesensorExtractingCasesfromReal烟雾传感器smokesensor人体传感器bodysensor红外对射传感器infraredsensor设备介绍—有线红外对射传感器Wiredinfraredsensor红外对射传感器是利用红外发光二极管发射的红外射线，再经过光学透镜做聚焦处理，使光线传至很远距离，最后光线由接收端的光敏晶体管接收的传感器。Theinfraredthrough-beamsensorisasensorthatusesinfraredraysemittedbyinfraredlight-emittingdiodes,andthenpassesthroughanopticallensforfocusingprocessingtotransmitthelighttoalongdistance,andfinallythelightisreceivedbythephototransistoratthereceivingend.设备组成

EquipmentComposition安防子系统Securitysubsystem传感器设备Sensor执行器设备Actuator执行器设备介绍—有线报警灯Wiredalarmlight安防子系统使用报警灯进行报警提示，当有火灾或非法入侵发生时，系统打开报警灯进行报警。Thesecuritysubsystemusesalarmlightsforalarmnotification.Whenafireorillegalintrusionoccurs,thesystemturnsonthealarmlightstoalarm.执行器设备介绍—有线LED灯WiredLEDlightsLED灯共有两根线，接线时，接线柱上标有“N”的一端连接电源负极，标有“L”的一端连接+12V电源。TherearetwowiresforLEDlights.Whenwiring,theterminalmarkedwith"N"isconnectedtothenegativepoleofthepowersupply,andtheendmarkedwith"L"isconnectedtothe+12Vpowersupply.执行器设备介绍—有线继电器Wiredrelay继电器是一种电控制器件，是当输出量的变化达到规定要求时，在电气输出电路中使被控量发生预定的阶跃变化的一种电器，通常用于自动化控制电路中。Arelayisanelectricalcontroldevice.Itisanelectricalappliancethatcausesthecontrolled