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中英文翻译--GSM及应用.doc

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中英文翻译--GSM及应用.doc

GsmandApplicationGSMisGlobalSystemforMobileCommunicationsacronym,whichmeansGlobalSystemforMobileCommunicationsistheworldsleadingcellularsystemsintheworld.GSMisbasedonnarrowbandTDMAstandardthatallowsradiofrequencyinagroupcallatthesametime8.GSM80duringtheriseinEurope,putintousein1991.Theendof1997,hasoperationsinmorethan100countries,EuropeandAsiahasbecomethestandardinfact,thatby2001,theworlds162countrieshavealreadybuilta400GSMcommunicationsnetwork.ButtheGSMsystemcapacityislimited,usersinthenetworkoverload,ithadtoconstructadditionalnetworkfacilities.WhatisgratifyingisthatGSMperformanceinotherareas,whichinadditiontoprovidingastandardizedlistandsignalingsystems,butalsoopenedupsomeofthemoreintelligentofthebusinesssuchasinternationalroamingandsoon.TheconvenienceofGSMmobilephoneisthatitprovidesasmartcard,knownasSIMcards,andcardcouldbeseparated,sothatthereplacementofmobilephoneusersandcustompersonalinformationinthisareaarefacilitated.GSMnetworktoimproveafteryearsofdevelopment,isnowverymature,lessblindspots,signalstability,automaticroaming,andthecommunicationdistancefromtheimpactofthesurroundingenvironment.GSMshortmessageinparticular,flexibleandconvenient,youcancrossmarket,interprovincialandevencrossbordertransmission,andeachsendashortmessageaslongasonedime,veryreliableandaffordable.Inaddition,themobilephoneSIMcardinrecentyearscanapplyfor0,somepackagesuselowercostthanfixed.Thereforetheuseofmobilephonemessagetoachievealarm,ultralongrangeremotecontrolforindustrialequipment,transmissionofdataisaverygoodchoice.GSMmodule,isasimilarmobilecommunicationmodule,integratesanumberofmobilephonefunctionsonasinglesmallcircuitboard,itcansendSMSmessages,callsandsoon,themoduleissmall,butithasalotofmobilephonefunctionality,withitshaveequalisthecoreofthemobilephone,anditisinalotofapplicationshaveawiderangeofapplications,GSMmodulethroughtheuseofATcommandstocontrolit,modulescanbeconnectedtocomputerRS232serialport,canalsobeusedtocarryoutsinglechipcontrol.Belowwecitesometypicalapplications1,mobilephoneaccesscontrolsystemGSMAccessControlSystemusedtocontroltheelectriclockcontrol,ifyouneedtoenter,aslongasthecellphonecallusingGSMmodulesmobilenumber,willautomaticallyopenthedoor,andonlyyoucansetupcellphonenumberstoopenthedoor,andnocosts.2,threebillboardovertheweatherdisasteremergencyturnoffOverthreebillboardsareconstantlyflipthroughthemotortoachieveanumberofadsdisplayed,becauseinstalledintheoutdoors,whenthereiswind,hailandotherweatherdisasters,billboardscouldeasilybeblownbadordamagedcarddie,wheninneedofemergencyshutdown,Youcannormallyclosedrelaycontacttocontrolthepowerofadvertising,whenyouneedtodoissendturnoffcontrolmessage,thebillboardwillautomaticallyturnoff,andautomaticallyafteracertaintimedelayautomaticallyreturntonormaljobgenerallydisastrousweatherwillnotcontinueforalongtimeinadvanceifyouwanttoopenabillboard,youcansendOpencontrolmessage.3,engineeringsystembalanceremindersSomeworksaresafeafterthecompletionofthenormaloperationafteraperiodoftimetosettlethebalance,iftheencountermaliciousclientstheoutstandingpurchaseprice,ofteninstalledsideveryheadache,becauseequipmenthasbeeninstalled,ifthelossofagreatcomebackdown,particularlyinthefieldcustomerverycostlywhentheclientsystemcanbeinstalledintheGSMmodule,useitallthewaytocontrolsystemorthewaysomeofthekeypoints,whenthecustomerpaidinarrearswhenthemaliciousmessagecanturnoffsomefeatures,forcingcustomerstopaythepurchasepricethenimmediatelyopenmessage,ifyouhaveasmoothrecoveryofthepurchasepricecanalsobethenameofsystemmaintenancebytheGSMmoduleremovedfromtheclientsystem.4,monitoringsystemsorWebserversandresetthealarmMonitoringsystemorwebserverrunningafteralongperiodafterdeathmaybewrong,thistimetopoweronresetistheonlysolutionatthistimethroughtheGSMmodulecancontrolsystempower,andsettoopenautomaticallyafter3secondsturnoffmode,canachievepowerreduction,inaddition,GSMmoduleinsomespecialapplicationareasalsoplayedaverylargerole,suchasthedisappearanceofthemainpowersupply,memoryerrors,fanshutdown,fueldepletion,itwastheinvasionandotherinformation,arenotpeopletheidealchoiceformonitoringtheengineroom.5,theremotecontrolofhomeappliancesThroughthemessagecaneasilyachievetheremotecontroltoopenricecookers,waterheatersandotherappliancesbyremotecontrolorswitchtorepairmodecanalsocontroltheairconditioningGSMglobalwirelessmobilecommunicationnetworkcontrolalarmhost,usingtheglobalGSMshortmessagedatatransmissionmodeandvoiceenabledplatformforthecompletionofintelligentdatatransmissionandremotecontrolalarm,setthehostfamily,shops,officesafety,electricalcontrol,remotemonitoring,suchasIntelligenthomefunctions,becauseoftheglobalGSMwirelessmobilecommunicationnetworksignalcoverageareaofCanton,andtrulyrealizethelowcosthighqualityultralongdistanceconvenientandflexibleintelligentwirelesscontrolandalarm,tosolvethefixedlinetelephoneorcablebroadbandnetworkwiredalarmlimitations.GSMglobalwirelessmobilecommunicationsnetworkinpopularityallovertheworld,theGSMglobalwirelessmobilecommunicationnetworkcontrolalarmcanbewidelyusedinasinglehostfamily,communityproperty,electricity,transportation,petroleum,coal,railway,municipalandpublicsecuritydepartmentsofthesecurityindustrypreventiondevices,datamonitoringandremotemonitoringsystem.WirelessRoad,with11defenseareas,2wayCableStandoff,differentdefenseareaalarm,alarmandmessagecontrol,separatefromadefendedposition,remotecontrol,homeappliancecontrol,linkagetotakephotographswiththelatestalarmcenternetworkcharacteristics.Features1.Wirelesssuspectsunderstrictsurveillance,nowiring,andeaseofinstallation.2.Cablesuspectsunderstrictsurveillance,safeandreliable.3.Wirelessremotecontrolsecurity/fromadefendedposition,easytooperate.4.Adaptabilitywidelyusedglobalbandwirelessmobilenetworks.5.Passwordsettings,confidentialitystronger.6.Alarm,thehighdecibelalarmsoundtodeterthieves.7.HostautomaticallytosixgroupsofmobilenumberstosendSMSalerts.Alarmmessageandatelephonecanbesetup8.Hostautomaticallydialthesixgroupsofmobileorfixedtelephonewarning,startsitemonitoring.9.Presetscenealarmandalarmmessage10.Withemergencyalarmfunction,canpreventthievesburglary,detectionofgasleaksandsmokefire.11.CommunicateelectricmissingDetectandalarm,topreventtheintentionaldestructionofthepowersystemandpowerfailuremonitoring.12.Communicateafterthelossofelectricityautomaticallyswitchtoabackupbattery.13.AvailablethroughGSMnetworkplatformandnetworkingalarmcenter.14.SupportedmessageinChineseorEnglishinstructions.15.HandsetintercommodeMatchingintercomcalls,andalarmcanbetwowayintercom,realtimeclearpoliceintelligencetopreventunnecessaryalarm.16.Appliancecontrolmatchingwirelessrelaycontrolpanel,availablethroughremotecontrolcommandmessage,suchaselectricalappliancesGSM及应用GSM是GlobalSystemforMobileCommunications的缩写,意为全球移动通信系统,是世界上主要的蜂窝系统之一。GSM是基于窄带TDMA制式,允许在一个射频同时进行8组通话。GSM80年代兴起于欧洲,1991年投入使用。到1997年底,已经在100多个国家运营,成为欧洲和亚洲实际上的标准,到了2001年,在全世界的162个国家已经建设了400个GSM通信网络。但GSM系统的容量是有限的,在网络用户过载时,就不得不构建更多的网络设施。值得欣慰的是GSM在其他方面性能优异,它除了提供标准化的列表和信令系统外,还开放了一些比较智能的业务如国际漫游等。GSM手机的方便之处在于它提供了一个智能卡,人们称之为SIM卡,并且机卡可以分离,这样用户更换手机并且定制个人信息这方面都十分便利了。GSM网络经过多年的发展完善,现在已经非常成熟,盲区少,信号稳定,自动漫游,并且通讯距离不受周围环境影响。尤其是GSM短信息,灵活方便,可以跨市、跨省、甚至跨国传送,而且每发送一条短信息只要1毛钱,非常可靠廉价。此外,目前手机SIM卡近年来可以0元申请办理,某些套餐使用费用比固话还低。因此利用手机短信来实现报警、超远程遥控工业设备、传输数据是一个非常不错的选择。GSM模块,是一个类似于手机的通讯模块,集成了手机的若干功能于一块小电路板上,它可以发送短消息,通话等等,模块虽小,但它具备了很多手机的功能,拥有它等于就是拥有了手机的核心部分了,它在很多应用领域中都有着广泛的应用,GSM模块通过使用AT指令才能控制它,模块可以与电脑RS232串口相连,也可以用单片机来进行控制。下面我们例举一些典型的应用1、手机控制的门禁系统用GSM控制门禁系统的电控锁,如果你需要进门,只要用手机拨打GSM模块内手机卡号,门就会自动打开,并且只有你设置的手机号码才能开门,而且没有任何费用产生。2、三翻广告牌的灾害天气紧急关闭三翻广告牌是通过电机实现不断翻转显示多个广告内容,因为安装在室外,当出现大风、冰雹等灾害天气时,广告牌很容易被吹坏或者卡死损坏,这时需要紧急关闭,你可以通过继电器常闭接点来控制广告牌的电源,这时你只要发送关闭控制短信后,广告牌就会自动关闭,并且自动延时一定时间后自动恢复正常工作(一般灾害性天气不会持续很长时间)如果你想提前打开广告牌,可以发送打开控制短信。3、工程系统的余款催交一些工程都是安全完成后正常运行一段时间后才把余款结清,如果碰到客户恶意拖欠货款,往往安装方非常头疼,因为设备已经安装了,如果拆回来损失很大,尤其是外地客户非常劳民伤财,这时可以在客户系统中先安装的GSM模块,用它进行一路或多路控制系统的一些关键点,当客户恶意拖欠货款时可以通过短信关闭一些功能,迫使客户付清货款然后立即短信开通,如果已经顺利回收货款还可以借系统维护的名义把GSM模块从客户系统中拆除。4、监控系统或者网站服务器的报警及复位监控系统或者网站服务器经过长时间运行后可能会出错死机,这时候断电复位是唯一的解决方法,这时可以通过GSM模块控制系统的电源,并设置成打开3秒后自动关闭模式,可以实现断电复位,此外,GSM模块在一些特殊应用领域也起到了非常大的作用,如主电源消失、内存错误、散热风扇停机、燃油耗尽、有人入侵等各种信息,是无人机房监控的理想选择。5、家电的远程控制

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