Wazi kangakanani ngezikena zebhakhodi?

Iskena sebhakhodi
Iskena sebhakhodi, esaziwa nangokuthi isifundi sebhakhodi, isithwebuli sebhakhodi, isithwebuli sebhakhodi, isithwebuli sebhakhodi, nesifundi sebhakhodi. Kuyidivayisi yokufunda esetshenziselwa ukufunda imininingwane equkethwe kubhakhodi. Isebenzisa izimiso zokubona ukuze kuqondwe okuqukethwe kwekhodi yebha futhi ikuthumele kukhompuyutha noma enye idivayisi ngolayini wedatha noma ngaphandle kwentambo. Isetshenziswa kakhulu ezitolo ezinkulu, i-logistics express, imitapo yolwazi, njll. ukuskena amabhakhodi ezimpahla kanye nemibhalo.

Four laser technologies
Abafundi bebhakhodi abajwayelekile bavamise ukusebenzisa lobu buchwepheshe obune obulandelayo: ipeni lokukhanya, i-CCD, i-laser, isithombe- ukukhanya okubomvu okusekelwe.

umgomo wokusebenza
Ipeni lokukhanya liwumfundi wokuqala webha yokuthinta ebanjwa ngesandla ukuvela, futhi liyisifundi sekhodi yebha esonga kakhulu.
Uma usebenzisa, u-opharetha udinga ukuthinta ipeni elikhanyayo endaweni yekhodi yebha, futhi indawo encane yokukhanya ikhishwa nge-lens yepeni lokukhanya. Uma indawo yokukhanya iswayipha phakathi kwekhodi yebha ukusuka kwesokunxele kuye kwesokudla, ukukhanya kubonakala engxenyeni "engenalutho". "Isibani sizomuncwa, ngakho-ke i-voltage eshintshashintshayo ikhiqizwa ngaphakathi kwepeni lokukhanya. Lo mbane uyakhuliswa bese ulolongwa kabusha ukuze uqoshwe.
Advantage：Ukufunda ukuthintana nebhakhodi kungacacisa ukuthi iyiphi ibhakhodi okufanele ifundwe; ubude bebhakhodi okufanele ifundwe abunamkhawulo; izindleko ziphansi uma ziqhathaniswa nabanye abafundi; azikho izingxenye ezinyakazayo ngaphakathi, futhi iqinile; incane ngosayizi nesisindo esilula. Okubi: Ukusetshenziswa amapeni okukhanya angaphansi kwemikhawulo ehlukahlukene. Isibonelo, ayifaneleki ukufunda amabhakhodi kwezinye izimo; ngaphezu kwalokho, ipeni lokukhanya lingadlala indima yalo kuphela lapho kufundwa amabha amakhodi anokuminyana okucacisiwe kanye nekhwalithi enhle yokuphrinta ku- indawo eyisicaba; futhi Ama-Opharetha kudingeka adlule ekuqeqeshweni okuthile ngaphambi kokuba asetshenziswe. Isibonelo, isivinini sokufunda, i-engeli yokufunda, kanye nokusetshenziswa okungafanele kokucindezela kuzothinta ukusebenza kwayo kokufunda; ekugcineni, ngoba kufanele ithintwe ukuze kufundwe, lapho ibhakhodi yonakele ngenxa im isitoreji esifanele, noma kukhona a Lapho ifilimu evikelayo igqitshwa, ipeni lokukhanya alikwazi ukusetshenziswa; isilinganiso sokuqala sokuphumelela kokufunda kwepeni lokukhanya siphansi futhi isilinganiso sephutha elincane siphezulu.

Isimiso sokufunda
CCD iyithuluzi lokuxhumanisa lika-elekthronikhi (i-Chargcoupledevice), elilungele kangcono ibanga eliseduze nokufunda kothintana naye. Intengo yayo ayibizi njenge-laser reader, futhi azikho izingxenye ezinyakazayo ngaphakathi.
Umfundi we-CCD usebenzisa i-LED eyodwa noma ngaphezulu, ukukhanya okukhishwayo kungavala yonke ibhakhodi, isithombe sebhakhodi sidluliselwa ku umugqa wezibani, ezithathwe i-photodiode ngayinye ngayinye, futhi umphumela wokutholwa oseduze uthi "mnyama" noma " "Omhlophe" uhlukanisa ibha ngayinye noma isikhala ukuze kunqunywe uhlamvu lwebhakhodi. Ngamanye amazwi, umfundi we-CCD akafundi ngayinye "ibha" noma "ayinalutho" ngokucophelela, kodwa yonke ingxenye yebhakhodi bese iyiguqulela ekubeni isignali kagesi ekwazi ukuqoshwa. .
Okuhle: Uma kuqhathaniswa nabanye abafundi, abafundi be-CCD bashibhe, kodwa futhi bane- ububanzi obubanzi bokufunda ibhakhodi futhi kulula ukuyisebenzisa.Ilula kune-laser reader, futhi ngokungafani nepeni lokukhanya, ingafundwa kuphela ngokuthintana naye.

Okubi: Umkhawulo womfundi we-CCD usekujuleni kokufunda. wenkambu nobubanzi bokufunda. Kunzima ukufunda amabhakhodi aphrintwe ezindaweni ezigobile (ezinjalo njengamathini esiphuzo); kwezinye izikhathi ezidinga ukufunda amabanga amade, njengezindawo zokugcina impahla, kuba nzima nokufunda. Ayifaneleki kakhulu; I-CCD inokusebenza okungekuhle kokumelana nokwehla, ngakho izinga lokuhluleka liphezulu; lapho ibhakhodi okufanele ifundwe ibanzi uma kuqhathaniswa, i-CCD ayiyona into enhle, futhi ikhodi yebha enolwazi olude noma ukuminyana okuphansi ingadlula kalula ukuskena Uhlu lokufunda lwekhanda lenza ibhakhodi ingafundeki; futhi kwezinye izifundi zekhodi yebha ezisebenzisa ama-LED amaningi, noma yikuphi ukwehluleka kwe-LED kuzobangela ukuthi ingafundeki; abafundi abaningi be-CCD banezinga eliphansi eliphansi lokufunda impumelelo yokuqala kanye nezinga eliphezulu lamaphutha .

Principle of Laser Gun
Isithwebuli se-laser siyabiza kakhulu phakathi kwezikena ezihlukahlukene, kodwa singanikeza izinkomba zokusebenza eziphakeme kakhulu, ngakho sisetshenziswa kabanzi. ezimbonini ezihlukahlukene.
Umgomo oyisisekelo wokusebenza wesithwebuli se-laser uthi: isithwebuli selaser esiphathwa ngesandla sikhipha umsebe wokukhanya nge-laser diode, ekhanyiswa ku-prism ejikelezayo noma esibukweni esijika siye emuva naphambili. Ukukhanya okubonisiwe kudlula efasiteleni lokufunda futhi kukhanyisa indawo yekhodi yebha. Ngemva kokubonakaliswa kwemigoqo noma izikhala, ibuyela kumfundi, eqoqwe futhi igxilwe yisibuko, futhi iguqulwe ibe isignali kagesi nge-converter ye-photoelectric. Isiginali izoqoshwa isofthiwe yokukhipha amakhodi kusikena noma itheminali.
Kunezinhlobo ezimbili zezikena ze-laser: eziphathwayo nezigxilile: isibhamu se-laser esiphathwayo silula futhi kulula ukusixhuma futhi siyavumelana nezimo lapho sisetshenziswa. Isithwebuli se-laser esingaguquki sifaneleka ukufunda amabhakhodi amakhulu namancane, sikhulule izandla zombili ukuze zisebenze.
Izinzuzo: Izikena zelaser zingasetshenziselwa ukuskena okungathintana naye kahle kakhulu. Ngaphansi kwezimo ezijwayelekile, izifundi ze-laser ziwukuphela kwenketho lapho ibanga lokufunda lidlula ama-30cm; amabhakhodi okufunda nge-laser anezinhlobonhlobo eziningi zokuminyana futhi angakwazi ukufunda izindawo ezingavamile zebhakhodi noma Ukufunda okusobala phezu kwengilazi noma ephepheni elinamathelayo elibonisa ngale, ngenxa yokuthi awukufundwa okungathintwayo, ngeke kulimaze ilebula yebhakhodi; ngenxa yesistimu yokufunda nokuqopha ethuthuke kakhulu, izinga lokuphumelela kokuqashelwa kokufunda kokuqala liphezulu, isivinini sokuqaphela siyashesha kunepeni lokukhanya ne-CCD, kanye nekhwalithi yokuphrinta Umphumela wokubonwa kwekhodi yebha omubi noma ongaqondakali muhle; izinga lephutha elincane liphansi kakhulu (cishe isigidi esisodwa kuphela kwezintathu); isithwebuli se-laser sinokushaqeka okuhle nokumelana nokwehla, okufana nalokhu: Isithwebuli sochungechunge lwe-SymbolLS4000, esingaba amamitha angu-1.5 esitezini sikasimende Ukumelana nokwehla. isamba sezindleko zokuthenga kanye nezindleko zokusebenzisa, ayihlukile kakhulu kumfundi we-CCD.
Uhlobo lwesithombe ukukhanya okubomvu

Uhlobo lwesithombe esibomvu sokufunda ibha yisifundi sekhodi yebha esingangena esikhundleni sesibhamu selaser . Ukujula kwayo kokuskena kwenkambu kufinyelela ku-30cm, futhi ngesivinini sayo sokuskena esifika ezikhathini ezingama-300/isekhondi, inokusebenza okuhle kakhulu kokufunda ikhodi. Idizayini eyingqayizivele esuselwe ezithombeni yesifundi sebha ebomvu esuselwa kusithombe inamandla amahle okukhipha amakhodi, futhi amabhakhodi angakwazi ukufundwa izikena ezijwayelekile angafundeka kalula. Ngesixhumi esibonakalayo esihlakaniphile, ikhibhodi, imbobo ye-serial ye-RS232, i-USB nezinye izixhumanisi zingashintshwa kuphela ngokufaka ikhebula esikhundleni. Ngesikhathi esifanayo, ingaphinda ixhumeke ngqo kukhompuyutha ephathekayo. Kumadivayisi akhethekile njengamakhompuyutha aphathwayo, amanye amamodeli anganikwa amandla ngokuqondile ibhethri elakhelwe ngaphakathi, elixazulula umthamo onganele wokunikezwa kwamandla wekhompyutha ephathwayo. Ingase futhi ihlelwe futhi isofthiwe ithuthukiswe ngesofthiwe. Imisebenzi yayo ecebile yokuhlela idatha yenza isithwebuli sokukhanya okubomvu esisekelwe esithombeni sisebenzisane ngokugcwele nesofthiwe ekhona yomsebenzisi. Intengo yezithwebuli zokukhanya okubomvu zohlobo lwesithombe nayo inengqondo, ngakho isetshenziswa kakhulu.
The image type red light bar code reader is a bar code reader that can replace the laser gun. Its scanning depth of field reaches 30cm, and with its scanning speed of up to 300 times/sec, it has excellent code reading performance. The unique image-based design of the image-based red light bar code reader has good decoding capabilities, and barcodes that cannot be read by ordinary scanners can be easily read. Through the intelligent interface, the keyboard, RS232 serial port, USB and other interfaces can be converted only by replacing the cable. At the same time, it can also be directly connected to a laptop computer. For special devices such as handheld computers, some models can be directly powered by the built-in battery, which solves the inadequate power supply capacity of the handheld computer. It can also be set up and software upgraded through software. Its rich data editing functions enable the image-based red light scanner to fully cooperate with the user's existing software. The price of image-type red light scanners is also reasonable, so it is widely used.