IiFobs eziphambili zeRFID zoLawulo lokuFikelela: Isikhokelo soMthengi kwiintlobo, ukuhambelana, ukhuseleko, kunye ne-OEM Sourcing

Isitshixo se-RFID fob yinkcaza encinci yokungaqhagamshelwa ephethe itshiphu kunye ne-eriyali kwaye ichonge umsebenzisi kumfundi ngaphandle kokudibana ngokomzimba. Loo nto ilula. Yintoni ehamba ngabathengi abaninzi kuyo yonke into ephantsi kwayo: ingaba i-fob iya kuthetha nabafundi abasele beboshiwe eludongeni, nokuba i-chip inokuxhathisa isixhobo se-cloning ye-30 ye-euro, kwaye ingaba umthengisi unokwenza iiyunithi ze-5,000 ngokuchanekileyo ngaphambi kokuba zithumele. Esi sikhokelo sibhalelwe abantu abangabanini bezo zigqibo - IT kunye nabaphathi bezibonelelo abaqhuba uphuculo, kunye namaqela okuthenga afumana iifobs eziphambili zeRFID ngomthamo.

Eyona mpazamo ibiza kakhulu kolu didi kukuodola rhoqo. Ukuphindaphinda kuyafuneka kodwa akwanelanga. Apha ngezantsi, ukuhambelana, ukhuseleko, kunye nokukhangela ziphathwa njengezigqibo ezithathu ezibonisa ukuba ngaba ukusasazwa kuyasebenza - kwaye ngokomyalelo womngcipheko.

Isebenza njani i-RFID Key Fob (kwaye kutheni ibalulekile ekuthengeni)

I-fob yokwenziwa ayinabhethri. Xa ingena kwintsimi yomfundi, i-eriyali ivuna amandla kuloo ntsimi, ivusa i-chip, kwaye i-chip iphendule emva. Kwinkqubo esisiseko impendulo sisichongi esisisigxina; Kwinkqubo ekhuselekileyo i-fob kunye nomfundi ziqhuba ukuxhawulana ngesandla ngokufihlakeleyo phambi kokuba kutshintshiswe nantoni na enovakalelo. Umlawuli ngasemva komfundi ujonga isazisi ngokuchasene nemithetho yofikelelo kwaye avule umnyango - okanye afake ukukhanyela.

Iziphumo ezibini ezisebenzayo ziyaphuma koku. Okokuqala, ngenxa yokuba iifobs ezisenziwayo zitsala amandla kumfundi, zihlala zihleli ngaphezulu kweminyaka elishumi kungekho lungiso, yiyo loo nto phantse lonke ufikelelo lwesakhiwo luzisebenzisa kuneethegi ezisebenzayo{1}}ezinikwe amandla ebhetri. Okwesibini, umahluko phakathi "kwe-fob ithumela inombolo" kunye "ne-fob ingqina ukuba ngubani" libali lonke lokhuseleko - kwaye kugqitywe kwinqanaba le-chip, ngaphambi kokuba ucinge malunga nendlu okanye uphawu. Ukuba ufuna ifiziksi ngobunzulu ngakumbi, bona oku kucazululwa kweindlela i-RFID fobs ezingundoqo zisebenza ngayo kulawulo lofikelelo.

Ukuphindaphinda kunye noHlobo lweChip: Isigqibo sokuhambelana

Kukho iibhendi ezintathu zefrikhwensi, kwaye azidibanisi. Umfundi we-125 kHz akakwazi ukufunda i-13.56 MHz fob, kwaye ngokuphambeneyo. Ngaphakathi band ngalinye, usapho chip kunye nonxibelelwano umgangatho ukuhambelana emxinwa ngakumbi.

125 kHz (Izandiso eziphantsi)

I-LF indala, itshiphu, kwaye iyaxolela malunga nentsimbi kunye nengxolo yombane. Iichips ezifanaI-EM4100 kunye ne-TK4100 iifobs eziphambiliSasaza inani elimiselweyo, funda-kuphela inombolo. Oko kuthembeka kukwayingxaki: inani elimiselweyo elingenalo uguqulelo oluntsonkothileyo linokukotshwa ngemizuzwana ngumkopi ongabizi kakhulu. Khetha i-LF kuphela xa uthelekisa abafundi be-LF abakhoyo okanye xa udibanisa ngokulula ayinxalenye yemodeli yakho yoloyiko - igumbi lokutshixa ejimini, yithi, hayi iziko ledatha.

13.56 MHz (iFrequency ephezulu)

I-HF yinto engagqibekanga kuyo nayiphi na into entsha yokuthunyelwa apho ukhuseleko lubalulekile. Ilawulwa kumgangatho we-ISO/IEC 14443 (kunye ne-ISO/IEC 15693 egquma ixesha elide-iitshiphusi zengingqi), yiyo loo nto iziqinisekiso ze-HF zisebenzisana ngokucocekileyo kubo bonke abafundi abathobelayo. Iintsapho ezintathu ze-chip zilawula:

MIFARE Classic 1K- isiseko esikhulu esihlohliweyo, ixabiso eliphantsi, kunye nesizathu sokuba isathunyelwa ngomthamo. Kodwa i-Crypto-1 i-cipher yayo yaphulwa esidlangalaleni kwiminyaka edlulileyo, ngoko kufuneka iphathwe njengesiqinisekiso esilula, kungekhona ukhuseleko. Kukukhetha okunengqiqo kubulungu, ukutya okungenamali, okanye iingcango zangaphakathi apho i-clone iyinto ecaphukisayo kunokuba iphule. A13.56 MHz MIFARE 1K isitshixo fobibandakanya uninzi lwaloo matyala.

I-MIFARE DESFRE EV3- umlinganiselo wangoku wofikelelo oluphezulu{1}}lokhuseleko. Ngoxwebhu lwe-DESFire lwe-NXP, isebenzisa i-AES{4}}128 uguqulelo oluntsonkothileyo lwehardware, -ukudlula ungqinisiso olufanayo, kunye{7}}nolawulo lwesitshixo sesicelo ngasinye, kwaye i-IC ithwala iSiqinisekiso esiQhelekileyo se-EAL5+ - udidi olufanayo olufunwayo kwiitshiphusi zebhanki kunye ne-e-passport. Ibuyela ngasemva iyahambelana ne-EV2 kunye ne-EV1, eyenza ukufuduka kwezigaba kube yinyani. Ukuba uchaza isakhiwo sikarhulumente, ikhemesti yesibhedlele, okanye i-HQ yeshishini, esi sisiqalo, hayi uphuculo oluza kuqwalaselwa kamva.

NTAG (NFC)- yenzelwe ifowuni{1}}unxibelelwano olufundekayo kunokufikelela kulukhuni. Iluncedo kundwendwelo lokundwendwela, ukuqinisekiswa kwemveliso, kunye nokuthengisa, ngaphantsi komnyango okhuselekileyo.

UHF

I-UHF ifundeka ngeemitha, hayi iisentimitha, yile nto kanye uyifunayo kwiipalethi kunye nezithuthi kwaye kanye loo nto ungayifuniyo emnyango, apho ukufunda umntu amagumbi amabini kude lityala. Gcina i-UHF yokukhangela i-asethi kunye nokuchongwa kwesango / isithuthi.

Ukuba ulinganisa iibhendi ngexabiso lilonke kunexabiso lesincamathelisi, olu thelekiso lwexabiso le-125 kHz vs 13.56 MHz yolawulo lwenkcazelo yolawulo luluncedo, njengoko kujongwa ngakumbiukhetha i-frequency efanelekileyo ye-RFID fobs eziphambili.

Uluhlu lokuThengisa ukuhambelana Akukho mntu uqhubayo kude kube kade kakhulu

Uninzi lwee-odolo ezisileleyo zabelana ngonobangela omnye: umthengi ufanise amaxesha amaninzi kwaye acingele ezinye. Ngokwenyani, izinto ezine kufuneka zilungelelanise - amaxesha amaninzi, umgangatho wonxibelelwano, usapho lwe-chip, kunye nefomathi yobungqina (i-UID, ikhowudi yoncedo, okanye isicelo esifihliweyo sobunikazi). Umfundi we-HID Prox akayi kuyihoya igeneric 125 kHz EM4100 fob nangona zombini ezi "125 kHz," kuba ifomathi iyahluka. Ngaphambi kwayo nayiphi na iodolo eninzi, sebenza ngale nto:

• Chonga imodeli yokufunda.Funda ileyibhile kwisifundi esifakiweyo okanye ujonge uxwebhu lwendawo yolawulo. Ibhrendi kunye nenguqulelo ye-firmware zombini zibalulekile - abanye abafundi bamkela kuphela usetyenziso oluphezulu lwe-DESFire{2}}lokhuseleko emva kohlaziyo lwe-firmware.
• Hlola isiqinisekiso esikhoyo sokusebenza.Iimpawu eziprintiweyo, okanye ukuskena ngokukhawuleza kunye nomfundi wokuxilonga, ngokuqhelekileyo kuya kubonisa uhlobo lwe-chip kunye nefomathi.
• Qinisekisa ifomathi, hayi itshiphu kuphela.Buza ukuba ingaba isixokelelwano sinyanisekile na kwi-UID, kwikhowudi yoncedo, okanye kwisicelo esifihliweyo esinamaqhosha athile.
• Cela isampuli kwaye uyivavanye kubafundi bakho abaphilayo.Eli nyathelo linye linqanda phantse lonke ukusilela komlinganiselo omkhulu.
• Cacisa ubunini obuphambili.Kwi-DESFire kunye nezinye iinkqubo ezifihliweyo, thatha isigqibo sokuba ngubani ophethe izitshixo eziphambili kwaye ziya kwahlulwa njani phambi kwemveliso, hayi emva.

Xa udibanisa izizukulwana ezibini zabafundi ngexesha lokukhutshwa, aezimbini-ifob yesitshixo sokuphindaphindaethwala zombini i-LF kunye ne-HF chip yenza ukuba inkcazi enye ivule amacango amadala namatsha ngexesha elinye - rhoqo umahluko phakathi kwe-weekend cutover kunye nenyanga yeenkqubo ezihambelanayo. Kwiimekobume ze-HID ngokukodwa, eli nqaku likwiiodola ye-HID Prox{0}}iinkcazi ezihambelanayoiquka iinkcukacha zefomathi ezibambisa abantu ngaphandle.

I-RFID vs NFC: Enye sisiseti esingaphantsi kwenye

I-NFC ayisoteknoloji ekhuphisana ne-RFID - sisilayi esikhethekileyo se-13.56 MHz HF RFID esongeza iindlela ezimbini- zonxibelelwano, nto leyo eyenza ukuba ifowuni isebenze njengomfundi okanye isiqinisekiso. Zonke izixhobo ze-NFC zisebenzisa imigaqo ye-RFID; ayizizo zonke iinkqubo ze-RFID ezithetha i-NFC.

Lo mahluko uthatha isigqibo sokuba iifowuni zinokuthatha indawo yefobs kwisakhiwo sakho. Ukulinganisa iKhadi loMamkeli we-Android kunye neWalethi ye-Apple{1}}inkcukacha ezisekelwe kwiinkcukacha zinokusebenza zombini njengezitshixo zofikelelo, kodwa kuphela xa umfundi, ukufikelela-kwisoftware yolawulo, kunye nesiqinisekiso{3}}sendlela yonikezelo zonke ziyixhasa. Abafundi be-LF yelifa abakwazi ukusebenzisa ifowuni kwaphela. Ngokwenyani uninzi lwemibutho iqhuba yomibini: iifobs ezifihliweyo zabasebenzi kunye neekontraka, iinkcukacha eziphathwayo ezibekwe phezulu apho izithuthi zabafundi zibaxhasayo. Uqhekeko olupheleleyo luhlala kwesi sikhokelo ukuzeumahluko phakathi kweRFID kunye neNFC.

Ukubumba kunye noKhuseleko: Yintoni eneneni enokukhutshelwa

"Ngaba inokwenziwa?" ineempendulo ezintathu ezinyanisekileyo ngokuxhomekeke kwitshiphu:

• Iyahambelana kancinci- ezilungisiweyo{1}}Iitshiphusi ze-UID LF (EM4100, TK4100) kunye nayo nayiphi na inkqubo engafihlwanga ye-UID{4}}kuphela. Umkhupheli ophathwa ngesandla uyenza ngepasi enye.
• Idibanisa ngomzamo- MIFARE Classic. Ubuthathaka be-Crypto-1 buluntu, ngoko umhlaseli ozimiseleyo onezixhobo ezifanelekileyo unokubuyisela izitshixo.
• Yenzelwe ukuxhathisa i-cloning- DESFire EV3 kunye nezinye ii-AES -ezisekelwe kwiinkcazi, ezixhomekeke kuqinisekiso olufanayo, izitshixo zeseshoni eziguquguqukayo, kunye{3}}nolwahlulo lwesitshixo senkcaso ukuze ukuthomalalisa ifob enye kungayekeleli inkqubo.

Intsomi eqhelekileyo yokuba "nayiphi na i-RFID inokukotshwa ngefowuni" idibanisa ukufunda ithegi ye-NTAG evulekileyo kunye nokoyisa ukuqinisekiswa kwe-cryptographic. Ifowuni inokulinganisa ithegi ye-NFC ecacileyo; ayinakwenza ukuxhawulana ngesandla kwe-DESFire. Ukuze ufumane unyango olupheleleyo lwemodeli yesoyikiso, jonga lo magqabantshintshi weUkhuseleko lwedatha ye-RFID.

Ukukhetha i-chip sisiqingatha kuphela sokuthunyelwa okukhuselekileyo, nangona kunjalo. Uyilo lwenkqubo luthwala okuseleyo:

• Faka endaweni yelifa Wiegand wiring ngeOSDP, exhasa uguqulelo oluntsonkothileyo, umfundi ogadiweyo{0}}ku{1}}unxibelelwano lomlawuli.
• Sebenzisaukwahlukana okungundoqongoko ke zonke iziqinisekiso zifumana isitshixo esisodwa kwiqhosha elikhulu.
• Faka isiceloindima{0}esekelwe kwiimvume. Indima ye-NIST{1}}Imodeli yoLawulo loFikelelo oluSekelweyo - umgangatho we-ANSI/INCITS - yireferensi yofikelelo lwamaqonga alandelayo, kwaye yenza imephu ecocekileyo kwindlela izakhiwo ezabela ngayo ufikelelo ngomsebenzi.
• Balekauphicotho rhoqo: ukuphonononga iilogi, rhoxisa iziqinisekiso ezingasetyenziswanga, jikelezisa izitshixo, kwaye ugcine i-firmware yomfundi yangoku.
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Ukufuduka Kwenyani, Qala Ukugqiba

Ipatheni engezantsi iqhelekile kwi-ofisi ephakathi-yesayizi esusa ukuguga kwabafundi be-LF, kwaye ibonisa ukuba kutheni izigqibo zangaphambili ezihlanganisiweyo.

Isakhiwo esine-125 kHz EM4100 fobs sigqiba ekubeni siphucule emva kokuba umqeshi enike ingxelo yesiqinisekiso esiphindiweyo. Kunokuba batshintshe yonke into ngexesha elinye, bafaka i-DESFire EV3{4}ukufunda okukwaziyo kumgangatho nomgangatho kwaye bakhuphe iifobs eziphindwe kabini{8} ukuze abasebenzi bagcine inkcaza enye kuyo yonke. Izitshixo ze-Master ziyenziwa kwaye zibanjwe ngumxumi, zixutywe ngefob nganye, kwaye zitofwe kumzi-mveliso phambi kokuba zithunyelwe. Abafundi bafudukela kwi-OSDP njengoko umgangatho ngamnye unqunyulwa. Iingcango ezindala ze-LF-kuphela zihlala zisebenza kwi-fob enye de kufakwe umfundi wokugqibela, ngelo xesha umsebenzi we-LF uthathwa nje umhlalaphantsi kwisoftware. Akukho lukhutshiweyo kwakhona, akukho luhlu lwendawo yokuhlala.

Ipatheni engezantsi iqhelekile kwi-ofisi ephakathi-yesayizi esusa ukuguga kwabafundi be-LF, kwaye ibonisa ukuba kutheni izigqibo zangaphambili ezihlanganisiweyo.

Isakhiwo esine-125 kHz EM4100 fobs sigqiba ekubeni siphucule emva kokuba umqeshi enike ingxelo yesiqinisekiso esiphindiweyo. Kunokuba batshintshe yonke into ngexesha elinye, bafaka i-DESFire EV3{4}ukufunda okukwaziyo kumgangatho nomgangatho kwaye bakhuphe iifobs eziphindwe kabini{8} ukuze abasebenzi bagcine inkcaza enye kuyo yonke. Izitshixo ze-Master ziyenziwa kwaye zibanjwe ngumxumi, zixutywe ngefob nganye, kwaye zitofwe kumzi-mveliso phambi kokuba zithunyelwe. Abafundi bafudukela kwi-OSDP njengoko umgangatho ngamnye unqunyulwa. Iingcango ezindala ze-LF-kuphela zihlala zisebenza kwi-fob enye de kufakwe umfundi wokugqibela, ngelo xesha umsebenzi we-LF uthathwa nje umhlalaphantsi kwisoftware. Akukho lukhutshiweyo kwakhona, akukho luhlu lwendawo yokuhlala.

Inqaku asilophawu olukhethekileyo - kukuba inqanaba, isitshixo{1}}esinomnini, umbindi{2}}indlela yokuphindaphinda ijika ukukrazula kokuphazamiseka{3}}kwaye{4}}kubuyisele kumsebenzi wangemva. Eso sicwangciso siyenzeka kuphela kuba itshiphu (DESFire) kunye nefom factor (ezimbini-eziphindaphindwayo) zikhethwe kugxininiswa kwimfuduko.

Izindlu kunye neZixhobo: Tshatisa iNdawo, hayi iKhathalogi

Izindlu azifane zitshintshe uluhlu lokufunda kakhulu, kodwa luthatha isigqibo sokuba i-fob iphila ixesha elingakanani. Itshiphu kunye ne-eriyali iseti ukusebenza; iqokobhe libeka ukuqina.

Kwiimeko ezirhabaxa, cacisa i-IP67/IP68 yokutywinwa, i-−25℃ukuya +85℃rating, kunye nokumelana ne-UV kuyo nantoni na eshiywe ngaphandle. Icala -nge{6}} icala lamaqokobhe amabini axhaphakileyo agqunywe kokuI-ABS vs epoxy key fob uthelekiso. Apho inkangeleko iyinxalenye emfutshane, angesikhumba RFID isitshixo fobokanye ai-eco yamaplanga{0}}i-fob yesitshixo esinobuhloboiphethe uphawu olungcono kakhulu kune-ABS ebunjiweyo.

Ukucwangcisa: Iindlela ezintathu zeKhowudi yeFob

"Ukucwangcisa" kuthetha ukubhala isazisi, izitshixo, okanye ukufikelela kwidatha kwitshiphu. Uyenza njani ixhomekeke kwisikali kunye nokhuseleko:

1. Factory pre{0}}encoding.Umthengisi ubhala ii-UIDs okanye iziqinisekiso phambi kokuthunyelwa. Ikhawulezayo ekukhutshweni okukhulu kunye neenkqubo zehotele; akukho-kwisiza izixhobo ezifunekayo.
2. Kwi-ukufakwa kweekhowudi kwisiza.Ukhupha iinkcazi ngombhali we-USB okanye isoftware yobhaliso yephaneli yofikelelo. Eyona nto ingcono xa izabelo zitshintsha rhoqo kwaye ufuna ulawulo oluthe ngqo.
3. Isitofu esingundoqo esikhuselekileyo.Kwiinkqubo ze-DESFire kunye ne-AES, izitshixo ze-encryption kunye nezicelo zibonelelwa phantsi kweemeko ezilawulwayo, rhoqo kwifektri, ngoko ke iziqinisekiso azikwazi ukuphinda ziphindwe ngaphandle kwesigunyaziso.

Ukufumana iodolo yevolumu, vumelana neenkcukacha ezisebenzayo ngaphambili: i-encoding throughput, ukuphathwa kweempazamo, ukungafani kwe-UID, ungqamaniso lwedathabheyisi, kunye nokuloga kophicotho. Amashishini ahlala efakela ikhowudi ye-HR okanye inkqubo yesazisi ukuze akhwele kwaye aphume ebhodini aqhube ubume besiqinisekiso ngokuzenzekelayo.

Ukuhanjiswa okuqhelekileyo

Ii-Ofisi zilawula ukungena, iilifti, imigangatho, kunye neendawo zokupaka ezisembindini, ukuhlaziya amalungelo ngaphandle kokuchukumisa ihardware. Iihotele zikhupha iziqinisekiso eziphelelwa ngexesha lokuphuma - ubuchwephesha bucaciswe kwesi siqwenganaindlela amakhadi ezitshixo ehotele asebenza ngayo. Izibhedlele zivala iikhemesti, iilebhu, kunye neerekhodi ezinendima{1}esekelwe kwiimvume zokuthobela. Iidyunivesiti zisonga ukufikelela, ithala leencwadi, ukubakho, kunye nentlawulo engenamali kwisiqinisekiso esinye. Iziza zemizi-mveliso zisango iindawo ezinobungozi kunye namagumbi ezixhobo ngokwendima kunye nokutshintsha. Kuyo yonke imeko intshukumo ephumeleleyo iyafana: khetha itshiphu yenqanaba lezoyikiso, emva koko vumela isoftware iphathe abanye.

Ukuthenga kunye ne-OEM Sourcing

Ixabiso yinto yokugqibela yokuphucula, hayi eyokuqala. Sebenza ngeemfuno, emva koko wenze itshiphu, emva koko ulungelelanise, emva koko ube ngumthengisi.

Ukukhetha i-chip ngokwenqanaba lokhuseleko

• Phantsi(indawo yokuhlala, yokupaka): EM4100 / TK4100 / HID Prox.
• Phakathi(iiofisi, izikolo, iindawo zokuzilolonga): MIFARE Classic 1K okanye NTAG.
• Phezulu(imali, ukhathalelo lwempilo, urhulumente): DESFIRE EV3 nge-AES kunye nokuqinisekiswa okufanayo.
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Ukwenza ngokwezifiso (OEM/ODM)

Abathengi abaninzi abafane bafune isitokhwe samayeza enziwe afana nalawo aqhelekileyo. Ukhetho oluqhelekileyo luquka i-laser okanye isilika -ushicilelo lwelogo yesikrini, ukufakwa kweekhowudi kwi-UID kunye{2}}nenkqubo, amanani othotho, imibala elungiselelweyo kunye nokubumba, kunye neQR/ikhowudi yebhawudi ukudityaniswa - zonke ezixhasa ukubeka uphawu, ukulandelwa kwe-asethi, kunye {4}nokukhwabanisa. Zijonge ezi zinto ngokuthelekisa nomthengisiOEM / ODM amandlangaphambi kokwenza.

MOQ, ixesha lokukhokela, kunye novavanyo

Njengesikhokelo esirhabaxa, iimodeli zesitokhwe ziqhuba i-100-500 pcs, i-OEM eqhelekileyo 500–3,000 iipcs, kunye nokubumba ngokwesiko ngokupheleleyo 5, 000+ iipcs, kunye neyunithi yeendleko zehla ngokukhawuleza kwivolumu. Amaxesha okukhokela athatha malunga neentsuku ezi-2-5 zesitokhwe, iintsuku ezi-7-15 ze-OEM eqhelekileyo, kunye neentsuku eziyi-15–{13}} zezixhobo zesiko; Yakha kwisithinteli sokwamkelwa kwesampulu kunye novavanyo lwekhowudi. Xa uvavanya umthengisi, qinisekisa iitshiphusi zokwenyani (NXP, HID), ukufakwa kwekhowudi kunye nokuhambelana-nenkxaso yokuvavanya, isiqinisekiso se-ISO/CE/RoHS, kunye - nokungaxoxiswana - isampuli yomzimba phambi kokuveliswa kobuninzi.

isiphelo

Khetha itshiphu yokwenyani inqanaba lezoyikiso, qinisekisa ukuhambelana ngokuchasene nabafundi bakho bokwenyani phambi kokuba u-odole kwisikali, kwaye uphathe uguqulelo oluntsonkothileyo, i-OSDP, ulwahlulo olungundoqo, kunye nendima-iimvume ezisekelwe njengenkqubo enye kuneenketho ezine. Kwiindawo eziphezulu-zokhuseleko, i-DESFire EV3 kunye nesitshixo{{4}esinobunikazi, indlela yokufuduka enezigaba yimpendulo eyomeleleyo. Yonke enye into - indlu, umbala, uphawu - isezantsi kokufumana ezo zigqibo zintathu zilungile.

Ukuba uceba uphuculo okanye iodolo yesambuku, itshekhi yokuhambelana kunye nesampulu evavanyiweyo phambi kwemveliso iya konga kakhulu kuneendleko zazo. Unokucela uvavanyo lwesampulu okanye ucaphulo ukuqinisekisa ukuba iifobs zakho zihambelana nenkqubo yakho ngaphambi kokuba nantoni na ingene kwisixhobo.

FAQ

Ngaba nasiphi na isitshixo se-RFID fob sisebenza naye nawuphi na umfundi?

Hayi. Ukuphindaphinda, umgangatho wonxibelelwano, usapho lwe-chip, kunye nefomathi yokuqinisekisa zonke kufuneka zihambelane. Iifobhu ezimbini ze-"125 kHz" zisenokungahambelani ukuba ifomathi iyahluka.

Yeyiphi RFID isitshixo fob ikhuseleke kakhulu?

I-MIFARE DESFire EV3 ene-AES{2}}128 kunye nokuqinisekiswa okufanayo luphawu lokhuseleko oluphezulu lwangoku, oluphethe isiqinisekiso se-EAL{3} esithelekiseka neetships zebhanki.

Ngaba iifob eziphambili ze-RFID zinokuqulunqwa?

Fixed-iiFobs ze-UID LF zenziwa lula, iMIFARE Classic inokwenziwa ngomzamo, kwaye iziqinisekiso zeDESFire/AES zenzelwe ngokukodwa ukuxhathisa.

Ngaba iifob eziphambili zeRFID zifuna iibhetri?

Hayi. Iifobs ezingenzi nto zitsala amandla kumhlaba womfundi kwaye zihlala ishumi leminyaka nangaphezulu.

Ngaba i-smartphone ingathatha indawo ye-fob engundoqo?

Ngamaxesha athile. Iifowuni ze-NFC zinokusebenza njengeziqinisekiso apho umfundi kunye nesoftware ziyayixhasa, kodwa iinkqubo ze-LF zelifa azikwazi ukusebenzisa iifowuni kwaphela. Iisayithi ezininzi ziqhuba zombini.

Ndingenza ntoni ukuba i-fob ilahlekile?

Yixele, yenze ingasebenzi kwisixokelelwano ngokukhawuleza - akukho tshintsho lutshixo lufunekayo - khupha utshintshiselwano kwisitokhwe esisecaleni, kwaye ujonge iilogi zofikelelo zexesha elichaphazelekayo.

Yeyiphi i-MOQ eqhelekileyo kunye nexesha lokukhokela kwiifobs zesiko?

Iiodolo ze-OEM eziqhelekileyo zihlala ziqala malunga ne-500-3,000 iipcs kunye nexesha lokuhamba kweentsuku ezi-7-15; iimolds zesiko zifuna umthamo ophezulu kunye nexesha elide lokusebenzisa izixhobo. Soloko ucela isampulu kuqala.