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Unit7RoboticTotalStation(智能型全站仪)Formanyyears,theopticaltransitwasthesurveyor’stoolofchoicetomeasureangles.(多年以来,光学【optical】经纬仪一直是测量人员测角的工具选择)Bythe1970s,however,theelectronictheodolitebegantoreplacethetransitsinceitcouldmeasureanglesmoreaccuratelyonboththehorizontalandverticalaxes.(然而,20世界70年代,由于【since】它在水平轴和垂直轴方向上测角更精确【就是水平角竖直角】,电子经纬仪开始代替经纬仪。)Intheearly1980s,“totalstations,”whichmeasuredistancesveryaccuratelybyusingelectronicdistancemeters(EDMs),becametheinstrumentofchoice.(80年代早期,采用EDMs非常精确的测距的全站仪,成为测量仪器的选择。)Theninlate1990,Geodimeter,DandrydSwedenintroducedthefirst“robotictotalstation”addingautomatictrackingandradiocommunicationtoaradioanddatacollectoratthe“target”orpole.(然后在90年代后期,瑞典Dandryd【应该是瑞典的一个地名】Geodimeter【公司名】,推出【introduce介绍、提出】了第一台“智能型全站仪”,在“目标”或测杆上增加了一个有自动跟踪【automatictracking】和无线电通讯【radiocommunication】功能的信号和数据收集器)Thus,forthefirsttime,nopersonwasrequiredattheinstrument——onlyatthetarget,reducingthesizeofasurveycrew.(这样,第一次,仪器不再需要人——除了目标点,减少了测量人员)TotalStation(全站仪)Atotalstationisthemostcommonlyusedinstrumentsnowingeomaticsengineering,whichisfullyintegratedinstrumentthatcaptureallthespatialdatanecessaryfora3-dimensionalpositionalinformation.(全站仪是现在测绘工程中使用最普遍的仪器,完全综合的【fullyintegrated考虑到平时介绍全站仪的词句,我们可以翻译为全站型】仪器,可以获取所有的反映3维空间位置信息所需的空间数据。)Atotalstationintegratesthefunctionsofanelectronictheodoliteformeasuringangles,anEDMformeasuringdistances,digitaldataandadatarecorder.(全站仪整合了电子经纬仪的测角功能和EDM的测距功能,以及??和数据存储器的功能)Alltotalstationshavesimilarconstructionalfeaturesregardlessoftheirageorleveloftechnology,andallperformbasicallythesamefunctions.(不管他们工艺的年代和水平如何,所有的全站仪的结构【constructional构造的feature特征】都是类似的【similar】,都能基本【basically基本地】完成相同的功能)Aftertheinstrumenthasbeensetuponacontrolstation,centered,leveledandproperlyoriented,andtheprismtargethasbeensetupoveranotherpointwhosepositionistobemeasured,thesurveyormayfocusthetargetanddepressabutton.(在控制点上安置仪器、对中、整平和恰当的【properly】定向【orient确定方向、东方】之后,棱镜【prism】目标【目标棱镜】置于测点之上,测量人员就可以照准【focus】目标并按动按钮。)ThenoutputfromthehorizontalandverticalcircularencodersandfromtheEDMcanbedisplayedattheinstrumentandstoredinadatacollectorandentersintoabuilt-inmicroprocessor.(然后水平和竖直编码【encoder编码器】度盘和EDM的输出结果可以显示在仪器上,并可以存储在数据收集里,送入内置的【built-in】微处理器)Themicroprocessorcanconvertthemeasuredslopedistancetothehorizontaldistanceusingthemeasuredverticalorzenithangle.(微处理器可以将测得的斜距利用测得的竖直角或天顶距转化【convert】为平距)Themicroprocessoralsocomputesthedifferenceinelevationbetweentheinstrumentcenterandtheprismtarget.(微处理器还可以计算仪器中心和棱镜目标【目标棱镜】之间的高差)Iftheelevationoftheinstrumentcenter(theHI)andtheheightofthereflectortarget(theHT)abovethegroundareentered,themicroprocessorcomputestheelevationofthetargetstationtakingintoaccounttheeffectofcurvatureandrefraction.(如果仪器中心的高程(HI)和反射目标到地面的高度(HT)输入仪器,微处理器在考虑【takeintoaccount】地球曲率和折光影响后就可以计算出目标站点的高程)Furthermorethemicroprocessorcanalsocomputetheresolutionofthehorizontaldistancetogetherwiththecurrenthorizontaldirection,expressedasanazimuth,intoacoordinateofthetargetstation.(此外,微处理器还可以由水平距离和【togetherwith】当前水平方向——表示为方位角【azimuth】,计算出目标点的坐标)【resolution分析、决定n.】Inconstructionlayoutmeasurement,thedatanecessarytoestablishthedirectionanddistancefromacontrolpointtolocateaconstructionpointcanbeenteredintotheinstrumentviathekeyboardordirectlyfromanofficecomputer.(在建筑施工放样测量工作中,在控制点上为建筑点位定位所需的方向和距离数据,可以由【via经过】键盘或直接由办公室的计算机出入到仪器中去)Thenthesurveyorguidesthepersonholdingtheprismalongthelineofcomputeddirectionuntilthedistancetothepointtobelocatedagreeswiththecomputeddistance.(然后,测量人员引导持棱镜的人沿着计算出的方向线前行,直到到所定点距离于计算出的距离相吻合为止)Alldisplayedoutputscanalsoberecordedorstoredinelectronicfieldbookforfurthercalculationsinacomputer.(所有显示的输出结果也可以记录或存储在外业电子手簿当中,用以在计算机中进一步的计算)Totalstationsallowthemeasurementofmanypointsonasurfacebeingobservedwithinaveryshorttimerange.(全站仪使得【allow使得……得以发生】在观测范围内,非常短时间内对多点进行观测称为可能)RoboticTotalStation(智能型全站仪)Alate1980sadaptionofthetotalstationistheadditionofservomotorstodriveboththehorizontalandtheverticalmotionsoftheseinstruments.(80年代末,全站仪改进【adaption改变、改写】是加入伺服【servo】电动机【motor】,用以驱动仪器的水平和垂直移动【motion】)Forallthecomplexelectronicsinsidearobotictotalstation,themotionisstillprovidedbysimpleservomotorswithareductiongearsystem.(在智能型全站仪内所有的复杂的电子元件,它们的活动仍然是由简单的带有一个变速【reduction变速、减速】齿轮系统的伺服电动机提供的)Theendresultmustbelightweight,durableandfastandhavesub-secondpositioningaccuracy.(最终结果必定是,质量轻【原文应该是lightweight,中间有空格;lightweight的意思是轻量级选手、不胜任者】,耐用的和快速的、有着亚秒级定位精度的)Whenthosetotalstationshavebeendesignedwithautomatictargetrecognition(ATR)function,theyallowtheusertoautomaticallytrack,measureandrecordtargets.(当带有自动目标识别功能【automatictargetrecognition】的全站仪被设计出后,自动跟踪【track】、测量和记录目标得以实现。)Currenttechnologyprovidesrobotic(motorized)totalstationsthatareabletomeasureangleswithanaccuracyof±0.5″anddistanceswithanaccuracyof±1mm+1ppmtoarangeof3500m.(当前的技术能够使智能型全站仪在3500m的范围内的测角精度达到±0.5″,测距精度达到±1mm+1ppm)Latestmodelsarecapableofsearchingautomaticallyfortargetsandthenlockingontothemprecisely,turninganglesautomaticallytodesignatedpointsusingtheuploadedcoordinatesofthosepoints,repeatinganglesbyautomaticallydouble-centering,andevenequip
本文标题:7测量机器人
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