M'zaka zaposachedwa, masitolo akuluakulu apakhomo, masitolo ogulitsa ndi mabizinesi ena apeza phindu lalikulu la malondaPulogalamu ya POSku kasamalidwe kazamalonda, ndipo apanga ma network a POS network. Kamangidwe ndi unsembe mfundo ya dongosolo maukonde umayamba mwatsatanetsatane m'magazini osiyanasiyana mafakitale. Pepalali limakambirana makamaka za momwe mungasankhire imodzi mwama scanner a barcode ngati gawo lakutsogolo lakupeza deta yamalonda a POS.
Pali makina atatu ojambulira barcode scanner: CCD barcode scanner, laser barcode scanner ndi angle laser barcode scanner.
1. CCD barcode scanneramagwiritsa ntchito mfundo ya kulumikizana kwamagetsi (CCD) kuti afanizire mawonekedwe osindikizira a barcode, ndikuyimasulira. Ubwino wake ndi: palibe shaft, mota, moyo wautali wautumiki. Mtengo wake ndi wotsika mtengo.
Mukasankha scanner imodzi ya CCD, magawo awiri ofunikira ndi awa: Kuzama kwa gawo :
Chifukwa chithunzithunzi cha CCD ndi chofanana ndi kamera, ngati mukufuna kuonjezera kuya kwa munda, lens yofananira yowonjezera, kotero kuti voliyumu ya CCD ndi yaikulu kwambiri, yosokoneza kugwira ntchito. CCD yabwino iyenera kuwerengeka popanda kumamatira ku bar code, ndi mphamvu yapakati komanso ntchito yabwino.
Kusamvana : Ngati mukufuna kukonza kusamvana kwa CCD, muyenera kuwonjezera gawo la chinthu chojambula pachithunzichi. Mtengo wotsika mtengo wa CCD nthawi zambiri ndi ma pixel asanu, werengani EAN, UPC ndi ma code ena azamalonda ndi okwanira, kuzindikira ma code ena kumakhala kovuta. CCD yapakatikati ndi ma pixel opitilira 1024, ena mpaka 2048pixe1, amatha kusiyanitsa kagawo kakang'ono ka 0.1mm bar code.
2. Thelaser barcode scannerndi sikani ya mzere umodzi wogwiritsa ntchito machubu awiri a laser ngati magwero owunikira. Ili ndi mitundu iwiri: galasi lozungulira ndi galasi la vibrato
Zomwe zimagwiritsa ntchito mota yothamanga kwambiri kuyendetsa gulu la prism kuti lizizungulira, kotero kuti laser point imodzi yomwe imatulutsidwa ndi machubu awiriwa imakhala mzere. Mzere wa laser uwu umasinthidwa ku bar code yokha. Barcode yakuda imatenga laser yambiri, ndipo yoyera imawonetsa kwambiri laser. Nthawi yomweyo, kuwala kowonekera kumawonekera kudzera mu lens ya kuwala mu 'injini', ndipo imayang'ana pa chubu cha photoelectric katatu. Zowonera mu nthawi yoyang'anira zikuwonetsa kuti lamba wakuda wamtundu wa photoelectric wokhala ndi machubu atatu otsika, komanso lamba woyera. Pambuyo pakukulitsa kangapo, mawonekedwe amtundu wamakona amakona, ndipo mawonekedwe a rectangular amafanana ndi bar code yojambulidwa. Mawonekedwe opezeka amatumizidwa ku decoder kudzera pamzere wa data. 'Decoder' kwenikweni ndi chip microcomputer imodzi. Zimatengera kusokoneza komanso kauntala imodzi ya chip kuti ijambule nthawi yodumphira ya ma waveform. Gulu lomwe lasonkhanitsidwa limatsitsidwa mu sikani yanu yotsatira kapenanso kuseri. Zimatengera nthawi yomwe mawerengerowa amawerengera kuti azindikire kachidindo kofananira. Pakugwiritsa ntchito, pali mitundu yambiri ya ma bar code, ndi makwinya osakhazikika monga kuwira pamwamba, kotero gawo la decoding limafunika kulolerana ndi zolakwika, koma silingapange cholakwika. Pakalipano, decoder nthawi zambiri imagawidwa mu 8-bit ndi 32-bit, 8-bit mwayi ndi mtengo, 32-bit ndi liwiro. Msika wa laser bar code uli wodzaza ndi zinjoka, komanso kutsata fumbi la ccd scanner, mitengo yagwa mobwerezabwereza, kanyumba kanyumba, koma pali opanga angapo amphamvu apanyumba, ogula ayenera kuganizira mozama mtundu wanji, kusankha zoyenera kwambiri.
Mtengo wa galasi lonjenjemera ndi wotsika kuposa wa galasi lozungulira, koma mfundo iyi ya mfuti ya laser ndiyosavuta kuwongolera liwiro la sikani, nthawi zambiri 33 pa sekondi iliyonse.
Mabizinesi akamasankha imodzi mwa makina ojambulira laser, ndikofunikira kwambiri kutchera khutu ku liwiro la sikani ndikusintha, ndipo kuya kwa gawo si chinthu chofunikira kwambiri. Chifukwa pamene kuya kwa munda kumawonjezeka, chigamulocho chidzachepetsedwa kwambiri. Chojambulira chabwino cha laser chogwira pamanja chiyenera kukhala ndi liwiro lapamwamba la sikani ndi kusanja kwakukulu mkati mwa kuya kosakhazikika.
3. Chojambulira ngodya ndibarcode scannerzomwe zimasokoneza laser yotulutsidwa ndi diode ya laser kapena mizere yojambulira ingapo kudzera pamakina owonera. Cholinga chachikulu ndikuchepetsa ntchito yolumikizana ndi bar code pomwe cashier alowa mu data ya bar code. Chimodzi mwazosankha chiyenera kuyang'ana pa kagawidwe kamene kalikonse ka mzere wojambulira:
1.Pali mizere yambiri yofananira mbali imodzi
2. Angapo jambulani mizere kudutsa pa mfundo imodzi
3. Kuthekera kwa kutanthauzira kwa mfundo iliyonse kumakhala kofanana mkati mwa danga linalake
Chojambulira chojambulira chomwe chikugwirizana ndi mfundo zitatu pamwambapa chiyenera kukhala chimodzi mwazosankha zabizinesi.
Lumikizanani nafe
Tel : +86 07523251993
E-mail : admin@minj.cn
Ofesi yowonjezera: Yong Jun Road, Zhongkai High-Tech District, Huizhou 516029, China.
Ngati Muli mu Bizinesi, Mutha Kukonda
Ndibwino Kuwerenga
Nthawi yotumiza: Nov-22-2022