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1、ForewordBackin1999,wesawtheneedforanorganizationwithamissiontodefineacomplete,open,globalstandardforreliable,cost-effective,low-power,wirelesslynetworkedproductsaddressingmonitoringandcontrol.Whiletherewereotherstandardsthataddressedhigherdataratesorbattery-powerednetworksforaverysmallnumbero
2、fdevices,noneofthesetrulymettheneedsofthismarket.Instead,whatweneededwassomethingfocusedon:●Largenetworks(alargenumberofdevicesandalargecoveragearea)thatcouldformautonomously,andoperateveryreliablyandsecurelyforyearswithoutoperatorintervention●Verylongbatterylife(yearsofusefromapairofAAcells)
3、,verylowinfrastructurecost(lowdeviceandsetupcosts),verylowcomplexity,andsmallsize●Arelativelylowdatarate●Astandardizedprotocol,allowingmultiple-vendor,interoperableproductsfortheglobalmarketThus,in2002,theZigBeeAlliancewasborn.Now,withover225membercompanies,weareabletodrawonawealthofexperienc
4、eineveryaspectofthebusiness.Allowingsomanycompaniestheopportunitytohaveinputisnotasfast-pacedasadoptingasingleproprietarysystemanddeclaringitastandard.Evenso,thecombinedwisdomandthevettingprocessenableamuchbettersolutiontobebuilt,onewhichmeetsalloftheneedsmentionedabove.Gettingitrightisextrem
5、elyimportantifastandardistohavealongtrackrecordofsuccess.www.newnespress.comFFOR-H8597.inddixOR-H8597.inddix77/26/20083:03:05PM/26/20083:03:05PMxForewordTheZigBeeAllianceslogan,“WirelessControlThatSimplyWorks,”isclearlywhatisneededforendusersandimplementers,butachievingthatresultplacesaheavyb
6、urdenonthedevelopersandOEMs.DrewGislasonhastheabilitytotakecomplextopicsandpresenttheminamannerthatiscogentandeasilydigestibletoOEMsanddevelopers.ThisbookgoesalongwayinhelpingtoexplainZigBeeconcepts,andinexplaininghowtoimplementZigBeeinawidevarietyofproducts.Manypeopledonotrealizethataquietre
7、volutionisalreadyunderwayinbusiness,andinourhomes.Greatemphasisisbeingplacedonreducingnaturalresourcewasteandinbecomingexponentiallymoreefficient.Toachieveglobalefficiencygoals,wemusthaveanextensive,intelligent,easy-to-deploy,low-costinfrastr
