开放的工业无线解决方案.docx
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1、开放的工业无线解决方案 font=ArialOpenIndustrialWirelessSolutionsRealizingtheFullPotentialofWirelessInthecurrentglobaleconomicclimate,manufacturingfacilitiesarebeingcontinuallypushedtogrowtheefficiencyandprofitabilityoftheirprocesses.Theincentivestoimprove,automateandextendtheenterpriseapplytoeverythingfromoper
2、ationstomaintenanceandarerootedinvirtuallyeveryaspectofthemanufacturingprocess.Formanyplants,thelow-hangingfruitforautomationinitiativeshaslongsincebeenharvested,leavingthedifficultorcostlyprojectsthatlackfinancialjustificationorsufficientoperationalbenefittomoveforward.Theemergenceofindustrialwirel
3、esstechnologiesandstandardsradicallychangestheeconomicsoftheseoperationalinvestmentscreatingnewopportunitiestoimprovetheefficiency,safety,security,andproductivityofyourplant.WirelessTechnologiesatWorkOnedoesnthavetolookfartoseethatmajorautomationvendorsareincreasinglyintegratingwirelesstechnologiesi
4、ntotheirproductstosowtheseedsforthisnextgenerationofplantautomation.Goingwirelessisseenasawaytocosteffectivelyaddmoremonitoringcapabilitiesandpointsofmeasurement,enhanceworkforcemobility,improvesafetyandsecurity,anddrivemoreefficientutilizationofassets,rawmaterialsandenergy.However,forwirelesstowork
5、intheseoftendifficultandchangingenvironmentsthetechnologiesmustdeliverreliableperformance,easeofuseandcosteffectiveness.Althoughwirelessisheraldedasthenextbigthinginautomation,itcertainlyisntnew.Themovetousewirelesstechnologytoreducecostsandimproveefficiencyhasbeenunderwayforsometimeinmanufacturingo
6、rganizationssuchasinthewarehouseforassettracking,materialshandling,andsupplychainmanagementandatthepointsofentryforsecurityandaccesscontrol.IndustrialfacilitieshavealsobeenusingwirelessaspartofSCADAsystems,telemetryandmicrowavecommunicationsfordecades,inplacesrangingfromwastewatertreatmentfacilities
7、tooffshoreoilplatforms.Whathaschangedistheemergenceofproducts,applicationsandstandardstoaddressthespecificchallengesforusingwirelessinlargemanufacturingfacilities.Byextendingtherangeandloweringthecostsofplantandprocessnetworkcommunications,thisnewgenerationofwirelessnetworktechnologyoffersatremendou
8、sopportunitytorealizesignificantimprovementsintheoverallefficiencyoftheplant.Wirelessmonitoringsensorscanenablebetter,moretimelydataintoyourcontrolsystem,predictivemaintenanceorassetmanagementapplication.Operatorsinthefieldarenowabletoseethecontrolsystemandreviewstandardoperatingconditions,procedure
9、s,andcorrectiveactionsinreal-timeastheymakefieldadjustments.Securitydepartmentsareusingwirelessasameanstoimprovesecurityandachievetimelycompliancewithincreasingregulationsbywirelesslyaddingvideomonitoring,alongwithimprovedaccesscontrolandintrusiondetection.Othertechnologiesandapplicationssuchasvoice
10、overwirelesscommunicationsandassettrackingusewirelesstoenableproductivitygainsthathavealreadybeenrealizedinotherindustriessuchashealthcareandtransportation.Insomecasesthesebenefitsweresimplytoocostlytoachievebyrunningwires,whileinotherstheysimplycouldntbedonewithoutwirelessnetworks.Goingforwardthech
11、allengeistoinsurethatthebestofbreedindustrialwirelesssolutionsaresecure,scalableandsimpletooperate.Overcomingthatchallengerequiresmorethanjuststandardsandsinglesourcevendors.ChoosingtheRightWirelessTechnologyAsthelistofwirelessapplicationsgrows,sodothenumbersofwirelessdevicesandsystemsthatsupportthe
12、seapplications,addingcomplexitythatarisesfromusingmultiplewirelesstechnologiestoaddresstheeachapplicationsrequirementscoverage,latencyandthroughput.Mostofthesesystemshavebeendesignedtouseunlicensedfrequencies,whicharesharedacrossthedifferenttechnologiesandapplications.Thesharingofthesefrequenciesism
13、adeeasierbytheemergenceofrobuststandardsforcommunications,butstandardsalonearenotenough.Standardsassuretheproperfunctionofthesystemswithagivensetofcost/performancecharacteristics,andabasisforinteroperability-butnosinglewirelesstechnologyorstandardiscapableofbeingthesinglesolutionforeveryapplication.
14、Standards-basedtechnologieslikeWiFiIEEE802.11havebeenhardenedformobileworkerstotakeruggedizedtabletPCsandPDAsintotheplantwhileotherradioslikethosebasedonIEEE802.15.4andBluetooththatareoptimizedtosupportwirelesssensornetworksarebeingembeddedintoindustrialinstrumentationascurrentlybeingdefinedbytheISA
15、100.Inaddition,robustlong-range,highbandwidthwirelesstechnologieslikeWiMAXIEEE802.16havebeenruggedizedforindustrialenvironmentsandapplications.Thisdiversityofcost/performancetradeoffsamongtheseandthedozensofotheravailableindustrializedwirelessnetworkingtechnologiesdictatesthatuserschoosethemosteffec
16、tivetechnologyanddevicesforagivenapplication.Thereisnota“one-size-fits-allwirelessnetworkingtechnologythatadequatelysupportsthediverseanddemandingrequirementsofindustrialapplicationsandenvironments.Thelawsofphysicsdictatethatisextremelyunlikelythattherewillbesuchapowerfullyflexiblewirelesstechnology
17、anytimeinourfuture.ManaginganInvisibleAssetSowhat?Thereisanextremelyimportantassetthatyouownandcontrol.However,ifyoudontmanagethisasseteffectively,itcouldturnintoyourgreatestliability.Thisassetisyourairwavestheradiofrequencyspectrumthatisavailabletoyouinandaroundyourfacility.Imaginetwotothreeyearsfr
18、omnowwhenyouhavehundredsoreventhousandsofwirelessdevicesinyourplantfromdozensofvendors.Justlikeyourwirednetworkstoday,withouttherighttoolsformanagingthesecure,effectivecoexistenceofyourairwaves,thewirelesscommunicationsnetworkswillbecomeunreliable,slow,andpotentiallywillcreateunintendedsecurityvulne
19、rabilities.Inaddition,thechoicesyoumaketoday,maylimityouroptionsinthefutureasnewwirelesstechnologiesbecomeavailable.Howdoyoubothavoidthisloomingwirelesslogjamandfuture-proofyourwirelessnetworks?WirelessDeploymentOptions:OrganicorEngineeredThefirstandeasiestoptionisjustallowwirelesssystemstobedeploye
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