Anti -Metal NFC iithegi: Indlela ezisebenza & Indlela yokukhetha

Ithegi ye-anti -yentsimbi ye-NFC yithegi ye-NFC eyakhiwe nge-ferrite okanye umaleko okhuselayo wemagnethi phakathi kwe-eriyali kunye nentsimbi ehleli kuyo, ngoko iqhubeka nokusebenza kwizixhobo, oomatshini, iikhabhathi, iiphaneli zolawulo, kunye nokupakishwa kwentsimbi. Isincamathelisi esisemgangathweni se-NFC esibekwe ngokuthe ngqo kwintsimbi sikholisa ukungaphumeleli: intsimbi ikhupha i-eriyali kwaye ifunxa amandla ethegi efunekayo ukuze inyuse amandla. Ukuba ithegi yakho iya kuxhonywa phezu okanye kufuphi nomphezulu wesinyithi, udinga itegi ye-yentsimbi (i-ferrite{4}ebacked), kwaye kufuneka uyivavanye kwindawo yokwenyani ngefowuni yokwenyani phambi kokuodola ngevolumu.

Esi sikhokelo sichaza ukuba kutheniiithegi zeNFC eziqhelekileyoumzabalazo wesinyithi, indlela -yentsimbi ye-NFC yokuyicombulula ngayo ingxaki, indlela iintlobo ezahlukeneyo kunye neetships ezithelekisa ngayo, kunye nendlela esebenzayo yokukhetha, ukuvavanya, kunye nokuthenga ithegi elungileyo yeprojekthi yakho.

Impendulo eKhawulezayo

Sebenzisa isincamathelisi se-NFC esisemgangathweni kwiplastiki, iglasi, umthi, okanye ikhadibhodi. Sebenzisa i-anti -ithegi yentsimbi ye-NFC (ekwabizwa ngokuba yi{2}}kwithegi yentsimbi ye-NFC okanye isinyithi{3}} nyusa ileyibhile ye-NFC) nanini na xa ithegi igxininiswe kwintsimbi okanye ihleli ngaphantsi kweemilimitha ezimbalwa ukusuka kuyo. Umaleko we-ferrite ukhusela i-eriyali kwintsimbi, ibuyisela ukuthembeka kokufunda ngexabiso lethegi engqindilili, ebiza kakhulu.

Kutheni iithegi zeNFC eziMgangatho zingasebenzi kakuhle kwiMetal?

I-NFC kufutshane -buchwephesha obusebenza ku-13.56 MHz. Umfundi (ifowuni yakho) kunye nethegi zidityaniswa kwindawo encinci yamagnetic, kwaye ithegi itsala onke amandla ayo kuloo ndawo. Akukho bhetri kwithegi ye-NFC yokwenziwa. Unokufunda ngakumbi malunga nezinto ezisisiseko kwiIsishwankathelo setekhnoloji yeForam yeNFC.

Xa uncamathelisa ithegi eqhelekileyo kwintsimbi, izinto ezintathu zisebenza ngokuchasene nawe. Isinyithi sisebenza njengokufutshane-i-loop ejikelezisiweyo kwaye ifunxa amandla ukusuka ebaleni (i-eddy currents), ngoko ke amandla amancinci afikelela kwitshiphu. Isinyithi sikwasusa ukulungiswa kwe-eriyali kude ne-13.56 MHz, ingxaki yeenjineli zibiza i-detuning. Ekugqibeleni, isinyithi sigqwetha ukumila kwebala elijikeleze ithegi. Ngokudibeneyo ezi ziphumo zithetha ukuba ithegi ayinakuqokelela amandla aneleyo okuvuka konke konke.

Ngokwesiqhelo, isincamathelisi se-NFC esisemgangathweni sentsimbi sikholisa ukubonisa enye okanye ngaphezulu kwezi mpawu:

• Ayiskena konke konke, nokuba ifowuni icinezelwe ngqo kuyo.
• Umgama ofundiweyo uyawa phantse yonke into, ngoko ke ifowuni kufuneka ichukumise indawo encinci emnandi.
• Inochuku kakhulu kwi-engile, kwaye ukuthambeka okuncinci kophula ukufunda.
• Yasebenza kakuhle kwibhentshi yokusebenza kodwa yayeka ukusebenza emva kokuba ifakwe kwisixhobo.

Loo ngongoma yokugqibela yeyona ixabisa imali eninzi: ithegi evunyiweyo kwidesika ecaba ingaphumeleli entsimini. Yiyo loo nto umphezulu uvavanya kwimiba kangangoko kwithegi ngokwayo.

Zisebenza njani iithegi ze-Anti{0} zeNFC zentsimbi?

Ithegi echasayo -yentsimbi ye-NFC yongeza umaleko obhityileyo we-ferrite (isixhobo sombane esithambileyo) phakathi kwe-eriyali kunye nentsimbi. I-ferrite inika indawo yemagnethi indlela esezantsi yelahleko yokuqukuqela, ngoko ke ibala ligxininiswe kwi-eriyali endaweni yokutsalwa yintsimbi engaphantsi. Ngokwenyani, i-ferrite ibeka i-eriyali yodwa kumphezulu kwaye iphinde{4} izinzise ukulungiswa kwayo, nto leyo ebuyisela ufundo.

Imiba yoqhelaniso. Isitaki esichanekileyo, ukusuka kwifowuni ukuya phezulu, yile: ifowuni okanye umfundi → ithegi yobuso → i-eriyali ye-NFC kunye netshiphu → umaleko we-ferrite → umphezulu wesinyithi. I-ferrite kufuneka ihlale phakathi kwe-eriyali kunye nentsimbi. Ukuba ithegi ifakwe phezulu, okanye ukuba i-ferrite ilahlekile kwicala lesinyithi, ukhuselo alwenzi nto.

Yintoni engaphakathi -kwithegi yentsimbi ye-NFC?

Kuyanceda ukwenza umfanekiso womaleko, kuba nganye ichaphazela ukusebenza, ukuqina, kunye neendleko:

• Umphezulu kunye noshicilelo umaleko- ubuso obubonakalayo, obunokuphatha uphawu, imiyalelo, i-icon ye-NFC, okanye inombolo ye-serial eprintiweyo.
• Ukufakwa kwe-antenna kunye netshiphu-Ikhoyili kunye ne-NFC IC egcina kwaye ibuyise idatha yakho.
• Umaleko weFerrite– ikhuselo elenza{0}}ukusebenza kwentsimbi kwenzeke.
• Umaleko wokuncamathelisa- ibhondi kumphezulu; kwintsimbi egobileyo okanye eneoyile le iba yinxalenye ekusilelayo kuqala.
• Khupha i-liner– uxhaso luhlutyiwe xa kufakelwa.

I-Anti{0}Iithegi zeNFC zentsimbi vs iTagi zeNFC eziMgangatho

Umgaqo olula: khetha ithegi eqhelekileyo xa umphezulu -ungeyontsimbi kwaye akukho ntsimbi ivalekayo emva kwayo. Khetha i-anti-ithegi yentsimbi xa umphezulu uyintsimbi, xa kukho ifoyile okanye isinyithi iimilimitha ezimbalwa ngasemva -kwesigqubuthelo sentsimbi esibhityileyo, okanye xa ungaqinisekanga kwaye ungenakho ukuvavanya kwangaphambili.

Anti{0}Intsimbi NFC vs UHF Anti{1}}Metal RFID: Sukubabhidanisa

Abantu abakhangela "i-anti{0}}ithegi zentsimbi" bahlala bedibanisa iitekhnoloji ezimbini ezahlukeneyo. I-NFC iphezulu-ubuxhakaxhaka, kufuphi{3}}nenkqubo yebala eyenzelwe ukutephulwa kwefowuni ngabom kuluhlu olusondeleyo. I-UHF RFID (ekufutshane ne-860–960 MHz) ikude{7}}inkqubo yendawo elungiselelwe ukufunda iithegi ezininzi ukusuka kude nomfundi ozinikeleyo, yindlela oovimba kunye nophicotho-zincwadi olubala isitokhwe ngobuninzi.

Ukuba injongo yakho "umsebenzi ucofa ifowuni ematshinini kwaye avule irekhodi yawo," ufuna i-anti{0}}ithegi yentsimbi ye-NFC. Ukuba injongo yakho "kuhamba phantsi kwendlela kwaye ufunde ii-asethi zentsimbi ezingamashumi amahlanu kanye," ngumsebenziUHF anti-intsimbi RFID iithegi, hayi i-NFC. Ukukhetha usapho olungalunganga yenye yezona mpazamo zixabisa kakhulu kwiprojekthi-yethegi yesinyithi, ngoko ke lungisa lo mbuzo kuqala.

Izicelo eziqhelekileyo

Ipateni ihlala ifana: ncamathela ithegi kwinto yentsimbi, yicofe ngefowuni okanye umfundi, kwaye utsale ulwazi oluchanekileyo. Umahluko kukuba yintoni na loo nkcazelo kunye nokuba imo engqongileyo iyingozi kangakanani na.

• Ukulandelwa kwempahla yeshishini-Ithegi kumatshini, i-motor, okanye isixhobo esidibanisa kwirekhodi yayo ukuze i-asethi ikwazi ukuchongwa kwaye ibalwe. Kwimpahla yentsimbi evezwe ekuphathweni nasekucocweni, ithegi eqinileyo okanye ebotshwe ngamandla ikholisa ukodlula isincamathelisi esibhityileyo. Bona iinketho ezinxulumeneyoIithegi ze-RFID kunye ne-NFC zokulandelela i-asethi.
• Ukugcinwa kwezixhobo-amagcisa acofa ithegi kwimpompo okanye ipaneli ukuze ungene kuhlolo okanye uvule imbali yenkonzo. Apha ujoliso lwempompo kufuneka lube lula ukufunyanwa ngesandla, ngamanye amaxesha nge-icon ye-NFC eprintiweyo, kuba izixhobo zinokuba kwindawo engathandekiyo.
• IT kunye noluhlu lwezixhobo- iilaptops zetsimbi, iiracks, kunye neemeko zesixhobo zithwala iithegi ezikhomba ukungena kwi-inventory. Ezi ziqhele ukuba ngumphezulu osicaba, ngoko ke iqula{1}}elibotshelelwe kwi{2}}isincamathelisi sentsimbi sikholisa ukonela.
• Ukupakishwa okuhlakaniphile kunye nokuqinisekiswa kwemveliso- iithegi kwiitoti zentsimbi, iibhokisi zeprimiyamu, okanye ukupakishwa kwefoyile vula iphepha lophawu okanye uqinisekise into leyo. Kusetyenziso olujongene nebhrendi -, umgangatho woshicilelo kunye nomba wekhonkco ococekileyo okhowudiweyo njengokuthembeka kokufunda; oku kuwelana neNFC uqinisekiso lwemvelisosebenzisa iimeko.
• Ukulawula ukufikelela kwiingcango zentsimbi kunye neepaneli- xa ithegi isetyenziselwa ukunika ukufikelela, i-chip idla ngokufuna ukuba luhlobo olukhuselekileyo oluxhaswa yinkqubo yokufikelela, hayi i-URL ecacileyo.

Iindidi eziphambili ze-Anti{0}}Iithegi zeNFC zentsimbi

Anti{0}}izitikha zentsimbi zeNFC kunye neelebhile

Iithegi ezicekethekileyo, ezincamathelayo{0}}ezisemva kwimigangatho yentsimbi ethe tyaba njengekhabhathi, iiracks, kunye neepaneli. Zezona zitshiphu kwi{2}}inketho yentsimbi kwaye kulula ukuyiprinta. Ziphephe kwindawo egotywe ngokuqinileyo, kwintsimbi erhabaxa okanye eneoyile, naphi na apho umphetho unokucholwa khona, kuba ukusilela kokuncamathelisa, hayi ukusilela kwetshiphu, sisizathu esiqhelekileyo sokuphuma kwabo. Kwimitsi ephawulweyo okanye enenombolo, jongaiileyibhile zeNFC eziprintiweyoehambelana nomsebenzi wakho wobugcisa kunye neeseries.

Iithegi ezithambileyo nezincinci{0}}zefomati

Kwintsimbi egobileyo njengemibhobho, iisilinda, kunye nezixhobo zesandla, ithegi encinci okanye ebhetyebhetye ihambelana ngcono kwaye ayinakukwazi ukuphakamisa emaphethelweni. Kwiigophe ezixinene kakhulu, qwalasela intambo{1}}yeqhina okanye intambo yokukhwela endaweni yokuxhomekeka ekuncamatheleni kuphela. Ukurhweba-kukuba i-eriyali ezincinci azixoleli kangako, ngoko ke indawo yokumpompoza ichanekile ngakumbi.

Eqinile ABS, PPS, okanye PCB tags

Oomatshini bangaphandle, iimoto, kunye nesetingi ezirhabaxa zemizi-mveliso, khetha iqokobhe eliqinileyo-thegi kwizindlu ezibunjiweyo. Ezi zinokujijwa phantsi okanye intambo -zibotshwe, ziphile kwimpembelelo kunye nokucocwa, kwaye zinyamezele ukuguquka kweqondo lobushushu ngcono kakhulu kunesincamathelisi. Zixabisa ngaphezulu kwaye zininzi, kodwa ngenxaiithegi zangaphandle ze-NFC ezimagingxigingxiukuqina ingongoma. Imiba yomgangatho wemathiriyeli apha: uluhlu lobushushu, ukunganyangeki kwe-UV, kunye nokunganyangeki kweekhemikhali kuxhomekeke kwiplastiki ethile kunye nokufakwa kwe-encapsulation, ngoko cela umthengisi amaxabiso alinganisiweyo kunokwamkela ibango "lemozulu" jikelele.

I-Epoxy kunye neethegi eziprintiweyo zeprimiyamu

Kwibrand-ejongene okanye{1}}izinto zexabiso eliphezulu, i-epoxy{2}}egqunywe okanye iprimiyamu{3}}egqityiweyo -ithegi yentsimbi inika omelele ngakumbi, ubuso obunomtsalane. Ezi ziqhelekileyo kwimveliso yokuqinisekisa iprimiyamu apho ithegi iyinxalenye yamava e-unboxing.

Ukukhetha iChip elungileyo

Itshiphu ithatha isigqibo malunga nokuba ithegi ingagcina ngantoni kwaye zeziphi iinkqubo ezinokusebenza ngazo. Iintsapho ezintathu zisebenza kwiiprojekthi ezininzi.

Usapho lwe-NTAG 21x olusuka kwi-NXP lusisiseko sefowuni-ethegi ecofayo ye-URL. Amalungu amathathu ahluka ikakhulu malunga nokuba ungagcina kangakanani: 144, 504, kunye ne-888 bytes yememori yomsebenzisi ngokulandelelana, njengoko kudweliswe kwigosa.NXP NTAG 213/215/216 iphepha imveliso. Kwimpompo evula iphepha lewebhu, i-NTAG 213 ihlala ininzi; khetha NTAG 215 okanye 216 kuphela ukuba ufuna ngokunyanisekileyo ukugcina ngaphezulu kwithegi kunokuba ngasemva kweURL emfutshane. Uthelekiso olunzulu luhlala ebomini bethuNTAG kunye nesikhokelo se-MIFARE.

KhethaI-MIFARE DESFRExa ukhuseleko luyimfuneko, umzekelo ulawulo lofikelelo okanye ukuthengisa amatikiti. I-DESFire isebenzisa i-AES -esekwe kwi-cryptography kwaye yiNqobo yokugweba eqhelekileyo, kodwa iyavakala kuphela xa umfundi okanye iqonga lofikelelo kwelinye icala liyixhasa. Lukhetho olungalunganga lwethegi ye-URL yabathengi.

NyangaISO/IEC 15693(NFC Forum Type 5) njengokhetho lwe-HF yeshishini endaweni yokusilela kwifowuni -funda iithegi zentengiso. Yenzelwe ukufundela indawo ekufutshane nabafundi abazinikeleyo, kwaye inkxaso ye-smartphone yayo ayiqinisekiswanga kuzo zonke izixhobo. Ukuba abasebenzisi bokugqibela bayakucofa ngeefowuni zabo, qinisekisa inkxaso yesixhobo ngaphambi kokuba uzibophelele, okanye uhlale ne-NTAG.

Yeyiphi idatha yokufaka ikhowudi?

Ngokucofa kakhulu-uku{1}}ukusebenzisa uvule, faka i-URL emfutshane njengerekhodi le-NDEF kwaye ugcine iinkcukacha kwiphepha lewebhu emva kwayo. Ikhonkco elifutshane kulula ukuyihlaziya kamva, isebenzisa inkumbulo encinci yethegi, kwaye igcina ukufakwa kweekhowudi kulula; ukugcina amanani amakhulu edatha ngokuthe ngqo kwithegi akufane kuhlawule. Ifomati ye-NDEF ichazwa yiIForam ye-NFC ye-NDEF ingcaciso, kunye wethuInkonzo yokufaka ikhowudi ye-NFCunokusebenzisa ii-URL zakho kunye neeseriyeli ngaphambi kokuthunyelwa.

Unokukhetha Njani: Isakhelo se-SMART?

Endaweni yokukhetha ithegi kuqala kwaye unethemba lokuba iyalingana, sebenzisa imibuzo emihlanu ngokulandelelanayo. Ngamnye unciphisa ukhetho.

• Umphezulu– Yeyiphi intsimbi (ialuminiyam, intsimbi epeyintiweyo), kwaye ingaba sicaba okanye igophe? I-Flat kwaye ingenanto yimeko elula; iigophe eziqinileyo kunye nentsimbi enamafutha okanye erhabaxa ifuna iqhina elomeleleyo okanye intambo yokuxhoma.
• Ukunyuka– Ukuncamathelisa, isikrufu, okanye intambo yentambo? Kwintsimbi egobileyo, ukungaphumeleli kokuncamathelisa kunokwenzeka kunokusilela kwetshiphu, ke thelekisa intaba kunye nokumila.
• Isicelo-I-URL emfutshane, i-ID ye-asethi, ukufikelela ngokukhuselekileyo, okanye ukuqinisekiswa kwemveliso? Oku kumisela intsapho chip ngaphezu kwayo nayiphi na enye into.
• Abafundi-Ngaba abantu baya kucofa ngeefowuni zabo, okanye ngaba umfundi osisigxina okanye ofunda kwimizi-mveliso uza kukufunda? Ifowuni-kuphela iiprojekthi kufuneka zibambelele kwiitshiphusi ezixhaswa ngokubanzi.
• Uvavanyo-Kumphezulu wokwenyani, isixhobo sokwenyani, kunye nokusingqongileyo okwenyani, hayi isampuli esicaba kwidesika.

Itheyibhile yoKhetho ngokuSebenzisa Imeko

UVavanya Njani iiSampulu ze-Anti{0}}zesinyithi ze-NFC phambi koMveliso omninzi?

Isampulu ethe tyaba-yomphezulu ikuxelela kancinci kakhulu. Ngaphambi kokuba uvume ukwenziwa kwemveliso, beka iisampulu ngolandelelwano oluphinda-phindayo kwaye ubhale phantsi ukuba kuthetha ukuthini "ukupasa" kwiprojekthi yakho.

• Encode isampulinge-URL yokwenyani okanye idatha oya kuyithumela, hayi indawo.
• Uvavanyo emoyeni, kude nentsimbi, ukuqinisekisa ithegi kunye nomsebenzi wokufaka ikhowudi kuwo wonke.
• Uvavanyo kwindawo yentsimbi yangempelaithegi izakunyuswa, kwindawo eyiyo.
• Vavanya ngeemodeli ezininzi zefowuni, zombini i-iPhone kunye noluhlu lwezixhobo ze-Android, ekubeni indawo ye-eriyali iyahluka phakathi kwee-handsets.
• Vavanya emva kokuba i-adhesive ipholile, ngokuqhelekileyo iiyure ezingama-24, kunomzuzu osetyenziswa ngawo.
• Gxininisa isampulikunye neemeko eza kujongana nayo: ukugoba kwigophe, ukucoca okanye ukosula, kunye nokuvezwa kobushushu bokusetyenziswa ngaphandle.

Gqiba iindlela zokwamkelwa kwangaphambili. Umgangatho ofanelekileyo kukuba yonke isampula ifundeka ngokuthembekileyo kwimpompo yokuqala, ukusuka kwindawo yokucofa umsebenzisi wokwenyani anokuyisebenzisa, kwifowuni nganye ekwiseti yovavanyo lwakho, kwaye isafunda emva kokunyanga kunye noxinzelelo. Ukuba ithegi isebenza kuphela kwindawo echanekileyo okanye enye i-angle echanekileyo, yiphathe njengengaphumeleli, kungekhona i-quirk.

Yintoni Echaphazela Ixabiso le-Anti{0}}Iithegi ze-NFC zesinyithi?

I-anti-ithegi yentsimbi ixabisa ngaphezulu kunesincamathelisi esingenanto, kodwa "Ixabiso: ngaphezulu" akuyompendulo iluncedo xa usenza uhlahlo lwabiwo-mali. Abaqhubi abaphambili ngaba:

• Itshiphu– i-chip ye-DESFire ekhuselekileyo ixabisa ngaphezulu kwe-NTAG 213 esisiseko.
• Ubungakanani kunye ne-eriyali- iithegi ezinkulu zisebenzisa izinto ezininzi kunye ne-ferrite ngakumbi.
• Izinto eziphathekayo kunye ne-encapsulation- i-ABS ebunjiweyo okanye izindlu ze-epoxy zixabisa ngaphezu kweleyibhile.
• Ukushicilela-{0}umsebenzi wobugcisa ogcweleyo, uthotho oluguquguqukayo, kunye nokugqitywa okukhethekileyo kongeza ixabiso.
• Ufakelo lweekhowudi– pre{0}}ukufaka iikhowudi kwithegi nganye ene-URL eyahlukileyo okanye i-ID yongeza inyathelo.
• Ubungakanani– ngokwe-xabiso leyunithi liwela ngevolumu, ngoko ke i-MOQ ibalulekile.

Yintoni omawuqinisekise phambi kokuba u-odole ngobuninzi?

Ngeeodolo zevolumu, sukuvuma ithegi ephuma kwisampulu ethe tyaba-engaphezulu, kwaye ubhale iimfuno zakho ngokubhaliweyo. Uluhlu olufutshane lokukhangela ukuthumela umthengisi wakho:

• Ubuncinci be-odolo yobungakanani, kunye nokuqhawulwa kwexabiso kwimithamo ephezulu yeisambuku NFC tags for metal.
• Nokuba ubungakanani obuqhelekileyo kunye neemilo ziyafumaneka kumphezulu wakho.
• Nokuba banokuninzi{0}}ithegi nganye kwaye baprinte uthotho oluhambelanayo.
• Ingaba amanani othotho ashicilelweyo aya kuhambelana nee-URL ezikhowudiweyo, ezikhangelwe phambi kwemveliso.
• Iinketho zokuncamathelisa ngohlobo lwakho lwentsimbi, kubandakanya neendawo ezigobileyo okanye ezinamafutha.
• Ukusetyenziswa kwangaphandle, iqondo lobushushu elilinganiselweyo, i-UV, kunye nokumelana neekhemikhali, kunye nephepha elithile.
• Kulo naliphi na ibango elingenamanzi, ukulinganisa kwe-IP kunye nengxelo yovavanyo emva kwayo.
• Zingaphi iisampulu oya kuzifumana, kwaye kweyiphi imathiriyeli, yovavanyo lwakho lwasendle.

Xa ulungile, kuyafaneleka uku-odola ibhetshi encinciuvavanyo ngokuchasene nezixhobo zakho zokwenyaningaphambi kokwenza uhambo olupheleleyo.

Iimpazamo Eziqhelekileyo Emaziphephe

• Ukuvuma ithegi ukusuka kuvavanyo lwedesika kunye nokutsiba indawo yentsimbi yangempela.
• Ukuxhomekeka kwi-adhesive yedwa kwindawo egobileyo okanye enamafutha, apho kunokwenzeka ukuba uphakamise.
• Ukuzama ukugcina idatha eninzi kakhulu kwithegi endaweni yasemva kwe-URL emfutshane.
• Ukucinga ukuba yonke ifowuni ifunda iithegi ze-ISO / IEC 15693, xa inkxaso yefowuni ingaqinisekisiwe.
• Ukuphatha "ukungangeni kwamanzi" okanye "ngaphandle" njengoewe okanye hayi, endaweni yokucela amaxabiso alinganisiweyo.
• Ukukhetha i-NFC yomsebenzi ofuna ngokwenene-uluhlu olude lwe-UHF RFID, okanye umva.

Xa Awudingi Anti-Metal NFC Tag

Anti{0}}iithegi zentsimbi zixazulula ingxaki yokwenyani, kodwa azisoloko ziyimpendulo. Ukuba umphezulu yiplastiki, iglasi, umthi, okanye ikhadibhodi, ithegi eqhelekileyo inexabiso eliphantsi kwaye isebenza kakuhle. Ukuba kukho umsantsa wokwenyani ongeyiyo{3}}yentsimbi yeemilimitha ezininzi phakathi kwethegi kunye nayo nayiphi na intsimbi, ithegi eqhelekileyo ngamanye amaxesha inokusebenza ngaphandle kokhuselo, nangona iziphumo zinokwahluka. Kwaye ukuba ufuna ukufunda izinto ezininzi zentsimbi ngokukhawuleza ukusuka kude, isixhobo esifanelekileyo yi-UHF RFID, hayi i-NFC.

IiReferensi zobuGcisa

Amanqaku obugcisa kwesi sikhokelo asekelwe kwimigangatho epapashiweyo kunye namaxwebhu omenzi: iIforamu ye-NFCkwiziseko zeNFC kunye neNDEF ifomathi yedatha, NXPye-NTAG 21x inkumbulo kunyeI-MIFARE DESFREukhuseleko, kunyeISO/IEC 15693kwindawo{0}}yekhadi elisemgangathweni. Soloko uqinisekisa iinkcukacha ezichanekileyo ngokuchasene nomenzi wangoku wedatha yendawo oyiodolayo.

Imibuzo ebuzwa qho

Ngaba iithegi ze-NFC zisebenza kwintsimbi konke konke?

Ithegi esemgangathweni ye-NFC ihlala isilela kwintsimbi engenanto kuba intsimbi ifunxa ibala kwaye ikhuphe i-eriyali. Ithegi echasene -nentsimbi ye-NFC, eyongeza umaleko okhuselayo we-ferrite, yakhelwe ngokukodwa ukusebenza kwintsimbi.

Ngaba iithegi ezichasa -zentsimbi zeNFC zisebenza kwialuminiyam kunye nentsimbi engatyiwayo?

Ewe. Umaleko we-ferrite wahlula i-eriyali kumphezulu, ngoko ke iintsimbi eziqhelekileyo ezibandakanya i-aluminiyam, intsimbi engatyiwa, kunye nentsimbi epeyintiweyo zonke ziyasebenza. Ukusebenza kusaxhomekeke kubungakanani bethegi kunye nendlela ecaba kwaye igungxulwe ngayo ithegi, ke vavanya intsimbi yakho ethile.

Ngaba i-iPhone iyakwazi ukufunda -iithegi zentsimbi ze-NFC? Kuthekani nge-Android?

Ewe. I-Anti{1}}ithegi zentsimbi ezakhiwe kwi-NTAG 21x chips (NFC Forum Type 2 / ISO 14443A) zifundwa zii-iPhones zangoku kunye neefowuni ze-Android. Ukuba usebenzisa i-ISO/IEC 15693 (Uhlobo lwe-5) ithegi endaweni yoko, qinisekisa inkxaso yesixhobo, kuba akuyiyo yonke ifowuni eyifunda ngokuthembekileyo.

Yeyiphi i-NTAG endimele ndiyikhethe, 213, 215, okanye 216?

Kwimpompo evula iphepha lewebhu, i-NTAG 213 (144 bytes) ihlala yanele. Khetha i-NTAG 215 (504 bytes) okanye i-NTAG 216 (888 bytes) kuphela ukuba ufuna ukugcina idatha eninzi kwithegi ngokwayo kunokuba ngasemva kwekhonkco elifutshane.

Ingaba ingakanani i-anti{0}}ithegi yentsimbi ye-NFC ingafundwa?

I-NFC yitekhnoloji evaliweyo-, ngoko cinga ngeesentimitha, hayi iimitha, kwaye uphephe ukuthembisa umgama omiselweyo. Uluhlu lokwenene lokufunda luxhomekeke kubungakanani bethegi kunye ne-eriyali, imodeli yefowuni kunye nalapho i-eriyali ihleli khona, itshiphu, umphezulu wentsimbi, kunye nendlela egungxulwa ngayo ithegi. Qinisekisa umgama wokusebenza ngokuvavanya ithegi yakho kumphezulu wakho ngezixhobo zakho.

Ingaba anti{0}}intsimbi NFC iithegi zinokusetyenziswa ngaphandle okanye kubushushu obuphezulu?

Ewe, ngesakhiwo esifanelekileyo. I-ABS eqinileyo, iPPS, iPCB, okanye iithegi ze-epoxy zibamba ngaphandle,{1}}ubushushu obuphezulu, kunye nokuvezwa kweekhemikhali kungcono kakhulu kunesincamathelisi. Imida yokwenyani ixhomekeke kwibakala lemathiriyeli kunye ne-encapsulation, ke cela ubushushu obulinganisiweyo, i-UV, kunye nokumelana neekhemikhali.

Ngaba iithegi ezichasayo -zentsimbi ze-NFC azinamanzi?

Ezinye zikho, kodwa kuxhomekeke kwi-encapsulation, i-adhesive, ukutywinwa komphetho, kunye nenqanaba lovavanyo lomthengisi. Ukuba umlinganiselo othile we-IP ubalulekile kuwe, cela uhlengahlengiso kunye nengxelo yovavanyo kunokuba uxhomekeke kwibango eliqhelekileyo lokuthintela amanzi.

Ngobuphi ubungakanani bethegi yentsimbi ye-NFC ekufuneka ndiyisebenzise?

Ii-eriyali ezinkulu zihlala zixolela kwaye kulula ukuzicofa, ngelixa iithegi ezincinci kulula ukuzifihla kwaye zingene kwindawo eqinileyo. Ukuba ithegi incinci kunendawo yempompo yefowuni, yongeza i icon ye-NFC eprintiweyo ukuze abasebenzisi bazi ukuba bangacofa phi. Bona wethuIsikhokelo sobungakanani bethegi ye-NFCukuze kuhlaziywe ngokupheleleyo.

Ingaba isithuba esishinyeneyo sogwebu singangena endaweni ye-anti{0}}ithegi yentsimbi?

Ngamanye amaxesha i-spacer eshinyeneyo engeyiyo{0}}yentsimbi ivumela ithegi esemgangathweni isebenze ngokuyibamba ikude nentsimbi, kodwa umsantsa kufuneka ube mkhulu ngokufanelekileyo, isiphumo sisikhulu, kwaye ukuthembeka akuhambelani. I-ferrite{2}ibacked anti{3}}ithegi yentsimbi ibhityile kwaye ixhomekeke kakhulu, ngakumbi kwimveliso.

Ngaba i-anti{0}}ithegi zentsimbi ze-NFC zinokuprintwa ngelogo okanye inombolo yothotho?

Ewe. Umaleko womphezulu unokuthwala -umsebenzi wobugcisa ogcweleyo, i-ayikhoni ye-NFC, kunye nedatha eguquguqukayo efana namanani othotho. Ukulandeleka, cela umboneleli ukuba atshatise uthotho ngalunye olushicilelweyo kwi-URL ekhowudiweyo ngaphambi kokuveliswa.

Zahluke njani iithegi ze-anti-zentsimbi ze-NFC kwi-UHF echasene{1}}neempawu ze-RFID zentsimbi?

I-Anti{0}}iithegi zentsimbi ze-NFC zezempompo yefowuni esondeleyo kwi-13.56 MHz kwaye ifunde ithegi enye ngexesha. I-UHF anti -iithegi ze-metal RFID zisebenza malunga ne-900 MHz ngomfundi ozinikeleyo kwaye zakhelwe ukufunda izinto ezininzi zentsimbi zimgama, ezilungela-i-inventri enkulu kunetephu yefowuni.

Ndingazifumana iithegi ezifakwe kwiikhowudi ngobuninzi phambi kokuba zithunyelwe?

Ewe. Iithegi zingafakwa ngaphambili{1}}ngeekhowudi ngee-URL ezizodwa okanye ii-ID kunye nomgangatho-ikhangelwe phambi kokuhanjiswa, oko kukugcina uzifakelwe ngekhowudi ngesandla. Qinisekisa ukukhowudwa kobuninzi kunye nongqamaniso lwesiriyali xa ucela ikowuti.

Izinto eziphambili zokuThatha

• Iithegi ze-NFC eziqhelekileyo ziyasilela kwintsimbi; anti-ithegi zentsimbi zisebenzisa umaleko we-ferrite ukusebenza kuyo.
• Tshatisa uhlobo lomphezulu: izincamathelisi zentsimbi ecaba, iithegi ezibhetyebhetye zamagophe, iithegi eziqinileyo zangaphandle.
• Tshatisa itshiphu kumsebenzi: NTAG yee-URL, i-DESFire yokufikelela ngokukhuselekileyo, ISO 15693 ye-HF yoshishino.
• I-NFC yeyempompo ekufutshane; sebenzisa i-UHF RFID ukufunda -uluhlu oluninzi.
• Iisampulu zovavanyo kumphezulu wokwenyani, iifowuni zokwenyani, kunye neemeko zokwenyani ngaphambi kokuodola ngevolumu.