2023學(xué)年完整公開(kāi)課版BarcodeReadingDevice(version2022)

物流信息技術(shù)與應(yīng)用LogisticsinformationTechnologyandapplication2.1.8條碼識(shí)讀設(shè)備2.1.8Barcodereadingdevice“條碼識(shí)讀設(shè)備Barcodereadingequipment條碼識(shí)讀器的分類BarcodereaderclassificationBarcodereadingequipmentcanbedividedintocontactandnon-contactbarcodescannerfromthescanningmode.Contactreadingequipmentincludeslightpenandcardslotbarcodescanner;Non-contactreadingdevicesincludeCCDscannerandlaserscanner.條碼識(shí)讀設(shè)備從掃描方式上可分為接觸和非接觸兩種條碼掃描器。接觸式識(shí)讀設(shè)備包括光筆與卡槽式條碼掃描器；非接觸式識(shí)讀設(shè)備包括CCD掃描器和激光掃描器。物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment(1)從掃描方式來(lái)分類(1)Classificationfromscanningmode“條碼識(shí)讀設(shè)備Barcodereadingequipment條碼識(shí)讀器的分類Barcodereaderclassification條碼識(shí)讀設(shè)備從操作方式上可分為手持式和固定式兩種條碼掃描器。Barcodereadingequipmentcanbedividedintohandheldandfixedbarcodescannerfromtheoperationmode.物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment(2)從操作方式來(lái)分類(2)Classificationfromoperationmode“條碼識(shí)讀設(shè)備Barcodereadingequipment條碼識(shí)讀器的分類Barcodereaderclassification條碼掃描設(shè)備從原理上可分為光筆、CCD、激光和拍攝四類條碼掃描器。Inprinciple,barcodescanningequipmentcanbedividedintolightpen,CCD,laserandshootingfourbarcodescanner.物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment(3)按識(shí)讀碼制的能力來(lái)分類(3)Accordingtotheabilitytoreadthecodesystemtoclassify“條碼識(shí)讀設(shè)備Barcodereadingequipment條碼識(shí)讀器的分類Barcodereaderclassification條碼掃描設(shè)備從掃描方向上可分為單向和全向條碼掃描器。其中全向條碼掃描器又分為平臺(tái)式和懸掛式。Barcodescanningequipmentcanbedividedintounidirectionalandomnidirectionalbarcodescannerfromthescanningdirection.Omnidirectionalbarcodescannerisdividedintoplatformandsuspension.物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment4)從掃描方向來(lái)分(4)Fromthescanningdirection常用的條碼識(shí)讀設(shè)備主要有：CCD掃描器、激光手持式掃描器和全向激光掃描器三種。Commonlyusedbarcodereadingequipmentismainly:CCDscanner,laserhandheldscannerandomnidirectionallaserscannerthree.“條碼識(shí)讀設(shè)備Barcodereadingequipment物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment1．激光槍1.Thelasergun激光掃描器的掃描方式有單線掃描、光柵式掃描和全角度掃描三種方式。Thescanningmodeoflaserscannerincludessinglelinescanning,rasterscanningandfullAnglescanning.“條碼識(shí)讀設(shè)備Barcodereadingequipment物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment2．CCD掃描器2.CCDscanner這種掃描器主要采用了CCD(ChargeCoupledDevice)-電荷耦合裝置。CCD元件是一種電子自動(dòng)掃描的光電轉(zhuǎn)換器，也叫CCD圖像感應(yīng)器。它可以代替移動(dòng)光束的掃描運(yùn)動(dòng)機(jī)構(gòu)，不需要增加任何運(yùn)動(dòng)機(jī)構(gòu)，便可以實(shí)現(xiàn)對(duì)條碼符號(hào)的自動(dòng)掃描。ThisscannermainlyadoptsCCD(ChargeCoupledDevice)-ChargecouplingDevice.CCDelementisanelectronicautomaticscanningphotoelectricconverter,alsoknownasCCDimagesensor.Itcanreplacethescanningmotionmechanismofmovingbeam,andcanrealizeautomaticscanningofbarcodesymbolswithoutaddinganymotionmechanism.“條碼識(shí)讀設(shè)備Barcodereadingequipment物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment2．CCD掃描器2.CCDscanner一種是手持式CCD掃描器，另一種是固定式CCD掃描器。這兩種掃描器均屬于非接觸式，只是形狀和操作方式不同，其掃描機(jī)理和主要元器件完全相同。OneisahandheldCCDscanner,andtheotherisastationaryCCDscanner.Thesetwokindsofscannersarenon-contact,buttheshapeandoperationmodeisdifferent,itsscanningmechanismandthemaincomponentsarecompletelythesame.⑴CCD掃描器的兩種類型⑴TwotypesofCCDscanner“條碼識(shí)讀設(shè)備Barcodereadingequipment物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment2．CCD掃描器2.CCDscanner由于CCD的成像原理類似于照相機(jī)，如果要加大景深，則相應(yīng)的要加大透鏡，從而使CCD體積過(guò)大，不便操作。優(yōu)秀的CCD應(yīng)無(wú)須緊貼條碼即可識(shí)讀，而且體積適中，操作舒適。⑵選擇CCD掃描器的兩個(gè)參數(shù)(2)SelecttwoparametersoftheCCDscanner①景深。①thedepthoffield.BecauseCCDimagingprincipleissimilartoacamera,ifyouwanttoincreasethedepthoffield,thecorrespondingtoincreasethelens,sothattheVOLUMEofCCDistoolarge,inconvenientoperation.ExcellentCCDshouldnotbeclosetothebarcodecanberead,andmoderatevolume,comfortableoperation.“條碼識(shí)讀設(shè)備Barcodereadingequipment物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment2．CCD掃描器2.CCDscanner如果要提高CCD分辨率，必須增加成像處光敏元件的單位元素。低價(jià)CCD一般是512像素(pixel)，識(shí)讀EAN、UPC等商品條碼已經(jīng)足夠，對(duì)于別的碼制識(shí)讀就會(huì)困難一些。中檔CCD以1024pixel為多，有些甚至達(dá)到2048pixe1，能分辨最窄單位元素為0.1mm的條碼。⑵選擇CCD掃描器的兩個(gè)參數(shù)(2)SelecttwoparametersoftheCCDscanner②分辨率。②resolutionIfwewanttoimprovetheresolutionofCCD,wemustincreasetheunitelementofthephotosensitiveelementintheimagingarea.LowcostCCDisgenerally512pixels(pixel),readEAN,UPCandothercommoditybarcodeisenough,forothercodesystemreadingwillbemoredifficult.Themid-rangeCCDhasmorethan1024pixels,andsomeevenreach2048pixe1,whichcandistinguishthebarcodewiththenarrowestunitelementof0.1mm.光筆和大多數(shù)的卡槽條碼閱讀器都是采用手動(dòng)掃描的方式。手動(dòng)掃描器比較簡(jiǎn)單，掃描器內(nèi)部不帶有掃描裝置，發(fā)射的照明光束的位置相對(duì)于掃描器固定，完成掃描過(guò)程需要手持掃描器掃過(guò)的條碼符號(hào)。這種掃描器屬于光束掃描器Lightpenandmostcardslotbarcodereadersaremanualscanning.Manualscannerisrelativelysimple.Thereisnoscanningdeviceinsidethescanner.Thepositionoftheemittedlightingbeamisfixedrelativetothescanner.Thisscannerbelongstoabeamscanner“條碼識(shí)讀設(shè)備Barcodereadingequipment物流信息技術(shù)—條碼識(shí)讀設(shè)備Logisticsinformationtechnology-barcodereadingequipment3．光筆與卡槽式3.Ligh