声光报警监控系统外文翻译文献.docx

声光报警监控系统外文翻译文献.docx

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声光报警监控系统外文翻译文献

声光报警监控系统外文翻译文献

（文档含中英文对照即英文原文和中文翻译）

原文：

audio&opticalcontrolofthemonitoringsystem

Withinthemicrosystem,thereshouldbeasetofalarmingequipmentforemergenciestoensureofthesafetyandremindoperatorsoftakingin-timemeasures.However,sofarassomeimportantparameterorsystematicpartsareconcerned,theseequipmentsareinshortageorignorance.Giventhecase,thefollowingmethodsshouldbetakenintoconsideration:

datacollectedbythecomputer,aftertreatment,digitalfilteringwaveandmarkconversionbythecomputer,canbecomparedwiththegivenvalueoftheparameteratitsupperandlowerlimits.Iftheyarehigherthantheupperlimitvalue（orlowerthanthelowerlimitvalue）,analarmshouldbecarriedout,otherwise,itwouldbethenormalsamplevaluefordisplayandcontrol.

Inthecontrolsystem,theexaminedparameter,aftersamplingbymeansofA/D,isfedintomicro-computer.Followedbythetreatmentofdata,itwillnotonlybesentfordisplaybutalsoacceptalarmingtreatment,sothatworkingstaffareabletotakecorrespondingmeasuresintime.Atthesametime,thecomparisonbetweentheexaminedparameterandthegivenvaluewillcontributetotheautomaticadjustmentaccordingtothedeviationofthem.

Atpresent,automaticcontroltechnologyhasbecomeanindispensabletechnicalmeasureinthecourseofindustrialproduction.Withtheadvancementofscienceandtechnology,andtheexpansionofproductivescale,itwillbeinvolvedinproductionmorewidelyandplayamoreandmoreimportantrole,developingasasymbolinsuchbroadfieldsofautomaticcontroltechnologyasinenergy,militaryaffairs,production,etc.

Theautomationofproductionprocessisonewithoutdirecthumaninvolvement.Bymeansofcontrollingequipment（thatis,thesocalledautomaticdevices）,theproducingcoursewillgoonaccordingtopresetoperationlaws.However,thissetofcontrollingprocessneedmonitoringinstrumentsandtransmitterstopracticemeasuringandsignalconversiontotheparametersinthecourse.Inadditiontodisplayingdevicesappliedtoindicateandrecordtheparameter,adjustersandcalculatorsarealsoneededforitsmathematiccalculation,implementersandcoordinatorsfortheimplementationofordersinthesystem,sothattheoperationcanbeperformedintheprocessoftheproductionaccordingtotherequirements.

Thedesigninquestionaimsatcarryingoutmonitoringtothisautomaticproductionprocess.Throughthesetofparts,audioandopticalalarmswilltakeplacewhentheparametergoesbeyondthelimitsortroublesoccurinthecourseofautomaticproduction,alongwiththedisplayoftroublesite.Furthermore,withthehelpoftheaudioandopticalparts,theautomaticstateinthecourseoftheproductioncanevenbetransformedintomanualstate,soastohelptheoperatorsidentifythetroublesitesandcausesintime,reducethetimeinfailureandmaketheproductionquicklyrestoretothenormalprocess.

TFdevicescouldbeclassifiedintoninetypesaccordingtovariousparts.Namelytheyareconvertiontypes（TFZ）、energysourcetypes（TFY）、supplementtypes（TFF）、computationtypes（TFS）、controltypes（TFK）、givenvaluetypes（TFG）、displaytypes（TFX）、operationtypes（TFC）、adjustmenttypes（TFT）,amongwhich,thedisplaytypesandtheoperationtypesarecommonlycalled“devices”whiletheothersnamed“parts”.WhatthisdesignfocusesistheTFKparts,mainlyincludingalarm,highvalueselection,lowvalueselection,rangebetweentheupperandlowerlimits,speedlimit,follow-upcomparison,manual-automaticswitching,audioandopticalcontrolandmonitoring,etc.

Bytheadoptionofinputandoutputparts,TFdevicesfulfilltheconnectionwiththedeliveredsignalsonsite,thustheaccomplishmentofacceptingorsendingoutthestandardcurrentsignalsat0~10mAor4~20mA.Varioussubstandardsignals（suchasfrequency,impulse,amountforturn-onand–off,etc.）havetobeintroducedintothesystemforutilizationbymeansofrelevantdevices,whilethecontactsignalswithinthemachineadoptd.c.voltagesignalsat0~10V.TheTFdevicesuppliespowerintwoways:

oneistheconcentratedpowersupplywithmachineboxesandtheotheristheconcentratedpowersupplythroughoperationmachines.Theformercollectstheregulatedelectricalsourcesatvarioussizeonthehighestlayerofthemachineboxandthepowersupplyisdeliveredtodifferentboxeswiththehelpofcommonwires,ortotherelevantdevicesandoperatorsonsiteorattheoperatingtablethroughexternalterminals.Theconcentratedpowersupply2attheoperationtablecanmeetthedemandofthetabledevice.Thedcsteadypowersourceisofacoupleoftypes,suchas+24V、+15V、-15V、+5V,etc.amongwhich,thedesignedmonitoringsystempartsadopt+15V、+5Vand-15V.Astotheaccuracyofthefunctionalparts,mostareat±0.5%exceptthoseforun-isolatedtransmissionunits,whichareat±0.2%.

SofarasTFKdeviceisconcerned,thepartsformonitoringsystemmainlyincludeTFK-091foraudioandopticalcontrolandTFK-092formonitoringinput.Theyareusedinconcert,whenTFK-092partssendoutthelogiclevelsignalsforaudioandopticalalarm,theyareacceptedrightbyTFK-091andeachaudio&opticalcontrolpartisabletoreceivesixlogiclevelsignalssentoutbythemonitoringinputparts,i.e.oneaudio&opticalcontrolpartcanworkintunewithsixmonitoringinputparts.Ifthemonitoringinputpartsarelessthansix,theextrapartsoftheaudio&opticalcontrolpartswillfloat.TFK-091audio&opticalcontrolpartsprovideTFK-092monitoringinputpartswithhighfrequencypowersourceandsignalswithoutvibration.

TFK-091audio&opticalcontrolpartsfocusmoreonreceivingthelogiclevelsignalsofsoundandlight,keyoutputsincludingswitchersignalsatthetouchingpointofthepowerconnectertocontroltheboxlight,thosetocontrolsoundalarm,highfrequencypowersourcesignalsandthehighfrequencysignalswithoutoscillation.

TherearefivesignalsfocusedbyTFK-092monitoringinputparts,namely,powerlossorovervalueof+15Vinthepartsbox,powerlossorovervalueof-15Vinthepartsbox,disconnectionoftheinterlocklineinput,closureoftheinputtouchingpoints,andclosureofisolationinputtouchingpoints.Themainoutputsarelogiclevelsignalsofaudio&opticalalarmandaudio&opticalalarmitself.

Thisdesigntargetsatthemonitoringsystem,whosefunctionsarecomposedofthefollowing:

（1）toidentifyintimetheparameterbeyondthelimitsorothertroublesinthecourseofproductionandtheautomaticdevices,suchaspowercutoffandthestopofsafetyinterlockintechnique,and,atthesametime,sendoutaudio&opticalalarmsignalstoindicatethenatureandsiteofthetrouble;

（2）tocancelthe“automatic”orderoftheoperator,afterthetroubleoccurs,soastoadjustthesystemfromautomatictomanualstate,andkeepthevalveintheoriginalposition,ororientittothepresetposition;

（3）toprohibitanynew“automatic”operationordersenttotheadjustmentsystembeforethetroublereleased;

（4）themonitoringsystemhastoensureofitsownsoundness,withself-diagnosingmeasuressuchasindependentpowersourcesand“triallight”,sothataudio&opticalalarmsignalscanbesentoutintimeoncethemonitoringsystemitselfintrouble,andprotectfrommistakesintheswitchingoperation.

Inthedesignsomelogiccircuitsareused.Caremustbetakenwhenconnectinglogiccircuitstoensurethattheirlogiclevelsandcurrentratingsarecompatible.Forinputandoutputinterface,perhapsthemainproblemfacingthedesigneristhatofelectricalnoise.Smallnoisesignalsmaycausethesystemtomalfunction,whilelargeramountsofnoisecanpermanentlydamageit.Thedesignermustbeawareofthesedangersfromtheoutset.Therearemanymethodstoprotectinterfacecircuitsandmicrocomputerfromvariouskindsofnoise.Followingaresomeexamples:

（1）Inputandoutputelectricalisolationbetweenthemicrocomputersystemandexternaldevicesusinganopto-isolatororatransformer.

（2）Removinghighfrequencynoisepulsesbyalow-passfilterandSchmitt-trigger.

（3）Protectingagainstexcessiveinputvoltagesusingapairofdiodestopowersupplyreversiblybiasedinnormaldirection.

Inthecontrolsystemofmicrocomputers,theroutineworkingstatecanberevealedbyindicatorlightsordigitaltubedisplayerssoastoofferinformationtooperatorsforreference.However,astosomeemergencies,specialmethodsareneededtogetoperators’attentionorremindthemtotakeinstantmeasures.

Withinthecontrolsystem,sound,lightandlanguagesareoftenadoptedforthepurposeofalarm,amongwhich,thelighteffectderivesfromlightdiodeorflashinglight,whilesoundresultsfromsimpleelectricalbellsorflutes,orbuzzerswithadjustablefrequencies.Ifintegratedelectronicmusicchipsareused,pleasantmusicwillbeheardwhenunusualsituationoccursinthesystem,inadditiontosuddenlyflashedalarminglights,togettheattentionfromthestaffonsiteinaharmoniousenvironmentandmakethemtakeinstantmeasurestoensurethatthesystembeabletoproducesafely.Inthepastyears,withtheapplicationoftheindustrialcontrollerattheSIDgenerallineandtheindustrialPCmachine,alarmsystemswiththemixofsoundandfiguresaregreatlyadopted.Giventhemoreandmorevividandrealgraphsandexactsiteidentification,theyhavebecomeincreasinglypopular.

WiththedevelopmentofChineselanguageinthecollection,treatment,synthesisandrecognitionofthelighttechnology,languagechipsaremadeandappliedinthealarmingsystemofmicrocomputers,meetin