Yandisa imisebenzi ngeLF Long Range Tage namhlanje
Apr 13, 2026
Shiya umyalezo
Mhlawumbi uxelelwe ukuba ukuba isicelo sakho sifuna ukufunda ngaphaya kweesentimitha ezili-10, kufuneka utshintshele kwi-UHF. Elo cebiso liphethe malunga ne-70% yexesha -kodwa enye i-30% ibandakanya indawo apho i-UHF ingasebenzi ngokulula: imigca yesitampu ejikelezwe zizixhobo zentsimbi, amasango emfuyo anezilwanyana ezimanzi ezidlulayo, okanye iinkqubo zokufikelela kwilifa apho ukukrazula i-125 kHz iziseko azifanelekanga iindleko.
Esi siqwenga sesaloo 30%. Siza kuhamba kwinto eyandisa umgama wokufunda kwi-frequency ephantsi, apho i-physics idala imida enzima, kunye neempazamo zokuthumela sizibonile uhlahlo lwabiwo-mali lweprojekthi ngaphandle kokulungisa eyona ngxaki iphambili. Ukuba i-spec yakho ibiza i-60 cm ukuya kwi-1 yemitha ifundeka kwintsimbi-enzima okanye emanzi{6}}eveziweyo kwindawo engqongileyo, iinkcukacha ezingezantsi ziyakuqinisekisa ukuba i-LF yindlela yakho okanye ikusindise ekumoshakeleni iinyanga ezintathu uzama ukuyenza apho ingayi kusebenza khona.
IFiziksi ngesivakalisi esinye-kwaye kutheni ingalixeleli lonke ibali
-i-frequency esezantsi i-RFID idlulisela amandla ngonxibelelwano lwe-inductive kune-electromagnetic radiation, yiyo loo nto i-standard passive tags top out malunga ne-10 cm. Kodwa oko kusisiseko, hayi isilingi.
Isilingi ixhomekeke kwizinto ezintathu eziguquguqukayo ezinxibelelana ngeendlela i-spec sheet engayi kukubonisa ngayo: i-eriyali yomfundi ububanzi, indawo ye-coil yethegi, kunye ne-Q factor yesekethe ye-resonant. Iqela lethu lobunjineli lenze uthelekiso kunyaka ophelileyo lisebenzisa okufanayoEM4200 itshiphukwiisayizi ezintathu zeekhoyili. Ikhoyili yesetyhula ye-45 mm ifikelele kwi-24 cm kwi-bench setup yethu; ukukala ukuya kwi-97 mm yekhoyili yoxande ityhale ukuya kuma-41 cm; kodwa ukuphinda kabini kwakhona kwi-200 mm factor factor yongeza enye i-18 cm. Ukuncipha kweembuyekezo kusetwe nzima nje ukuba ikhoyili isondele kumda we-eriyali ekufutshane{8}}nomda wendawo.
Abafundi abakhethekileyo be-125 kHz abayilelwe ukufikelela kwisithuthi{1}}njenge-Promag GP90 uthotho{3}}banga i-90 cm kunye namakhadi e-ISO kwaye ukuya kuthi ga kwi-130 cm enobukhulu obugqithisileyo.iimpawu zeclamshellphantsi kwe-18-19V amandla. Iinkqubo zokuchongwa kwezilwanyana kwi-134.2 kHz elandelayoISO 11784/11785 zibhalwe zifundeka ngaphaya kweemitha ezi-2 kwindawo elawulwayo, nangona ezo seto zisebenzisaii-eriyali ze-loopifakwe kwiifreyimu zesango ezingayi kuhambelana neenyawo ezininzi zemizi-mveliso.
Nokuba iLF inokufikelela phambili ayingombuzo-inokufikelela kuyo. Nokuba ijometri ye-antenna kunye ne-tag form factor ekwenza ube khona iyakulungela ukuthunyelwa kwakho kulapho uninzi lweeprojekthi zingahambi kakuhle phambi kokuba ziqale.
Iindlela ezintathu zobuGcisa{0}}kunye neSakhelo seSigqibo esiSebenza ngokwenene
Ukuba ufuna iithegi ze-LF ezingenziyo zokufunda kwi-50 cm okanye ngaphaya, ukhetha phakathi kweendlela ezintathu. Nantsi indlela esikhokela ngayo abathengi kweso sigqibo.
Ii-eriyali zomfundi omninzi zihlala zilihashe lomsebenzi kuninzi lwe-LF yoluhlu olude lwethegi.
I-Loop diameter ye-300-500 mm yenza amasimi anamandla afikelela ngakumbi. Sisebenzise ezi kuchongwa lwesithuthi kwiziko losasazo e-Guadalajara-emgangathweni{4}}ezirhintyela ezizingiswe phantsi kwepavumente, GP90{10}}abafundi abahambelanayo, iithegi zeclamshell eziqhelekileyo kwiifestile zomoya. Funda umgama: 95 cm ngokuthembekileyo, 110 cm kwiimeko ezifanelekileyo. Ukubamba: i-eriyali yonyawo ayifane ilingane nofikelelo olusemgangathweni{14}}kwiindawo ezivaliweyo, kwaye udinga amaxabiso e-Q ngaphezulu kwe-100 ukunqanda ukuchitha amandla njengobushushu. Le ndlela isebenza xa ulawula isiseko kwaye unokwakha malunga nobukhulu be-eriyali. Ixabiso lethegi nganye lihlala kuluhlu lwe-$ 0.35-0.80 ngokuxhomekeke kwifom factor; indleko yokwenyani kukufakwa komfundi.
ISemi-ithegi zokungenziwaflip ulwakhiwo lweendleko.
Ezi zifakela ibhetri ukunika amandla ingqiqo yechip kodwa zixhomekeke kwibala lomfundi lokubuyisela umva. Uvavanyo lwethu lwangaphakathi lubonisa i-35-45% yoluhlu lolwandiso ngokuchasene nemilinganiselo yokwenziwa kumfundi omnye-kodwa ngokwe{4}}ixabiso lethegi litsibela kwi-$1.50–3.50 ngokuxhomekeke kukalisho lwendawo ebiyelweyo. Ubomi bebhetri buqhuba iminyaka emi-5-7 phantsi kwemijikelo yesiqhelo yomsebenzi (inye ifundwe ngomzuzu, iiyure ezisi-8/ngosuku), kodwa yehla ngokukhawuleza kwindawo ebandayo yogcino okanye{11}}usetyenziso lomjikelo ophezulu.
Nanku umgaqo wesigqibo esiwusebenzisa ngaphakathi, usekwe kumzekelo weendleko kwiiprojekthi ezimalunga nama-40 ukusukela ngo-2021:ukuba umthamo wakho wethegi wenyanga ungaphantsi kweeyunithi ezingama-300 kwaye imfuno yokufunda yomgama ingaphantsi kwe-80 cm, ii-eriyali ezinkulu zisoloko ziphumelela kwiindleko zizonke. Ngaphezulu kwama-300 eeyunithi/ngenyanga ngokufundwa ngaphaya kwemitha e-1, sebenzisa iminyaka emithathu-uthelekiso lwe-TCO phakathi kwe-semi{6}}yethegi yokwenziwa kunye nokongeza amanqaku angakumbi okufunda kunye nethegi yokwenziwa.Ukuba imathematika iyajika ngokuxhomekeke kwixabiso lakho lomsebenzi wofakelo lomfundi.
Iibhikhoni zeLF ezisebenzayo zikhona kodwa azifane zibe nentsingiselo kwimisebenzi yokuchonga.
Ibhetri-izithuthi ezinamandla eziqalisa unxibelelwano zinokugqitha kwiimitha ezili-10, kodwa ngelo xesha awenzi nyani "LF RFID" ngokwengqiqo yesintu{2}}uninzi lwezixokelelwano zisebenzisa i-LF yokuvuka{3}}imiqondiso edityaniswe{4}}nemijelo yedatha ephezulu. Sicaphule ezi kulandelwa umkhondo wesithuthi semigodi apho i-UHF ingenako ukungena kumzimba we-ore, kodwa ukuchongwa okusemgangathweni komzi-mveliso, ugcino oluphezulu luhlala lubulala ishishini.
Ukuba uvavanya i-LF eyandisiweyo{0}}ithegi zoluhlu losasazo oluninzi, iphepha lemveliso alinakukuxelela ukuba yeyiphi indlela elingana nesayithi yakho. Okusingqongileyo kuya kuba njalo.
Xa i-LF igqwesa i-UHF - kunye neNgcaciso enye apho ingenzi khona
Kwiindawo ezizaliswe yintsimbi okanye ulwelo, i-LF eyandisiweyo - yokuchonga uluhlu igcina ukuthembeka kokufunda okuba i-UHF iyasokola ukuyidibanisa. Ifiziksi: Imiqondiso ye-UHF 860–960 MHz ibonakalisa imiphezulu eqhubayo kwaye ifunxe emanzini{4}}imathiriyeli etyebileyo; Imimandla yemagnethi ye-LF idlula ngokuthomalalisa okuncinci kakhulu.
Sifake iithegi ze-LF kwiNqanaba loMntla Merika{1}}umboneleli wemoto om-1 olandela iiphaneli zomzimba ezipeyintiweyo ngesidluliseli sentsimbi ye-oveni, ukufuma kwiprimer enganyangekanga, umngeni opheleleyo. Izinga lokufundwa kakubi: 0.08%. Umqhubi we-UHF wangaphambili akakwazanga ukufumana ngaphantsi kwe-4% ngenxa yokubonakalisa. Kweso sicelo, iLF ibikuphela kokhetho olusebenzayo.
Into enye ekufuneka iqatshelwe: enkulu-ifomathi ye-UHF kwi{1}}ithegi zentsimbi iphucuke kakhulu. Ukuba imiphezulu yakho yentsimbi ithe tyaba, iyunifomu, kwaye unokuqinisekisa ukuqhelaniswa kwethegi engaguqukiyo, iimveliso ezinje ngothotho lwe-Xerafy PICO okanye i-Confidex Ironside ngoku isondela kwi-LF yokuthembeka ngelixa ibonelela ngokufundwa kweemitha ezi-3 ukuya kwezi-5. Siwubonile lo msebenzi ekulandeleleni ipalethi apho ithegi ikhwela kwindawo enye ngalo lonke ixesha. Ayisebenzi xa iithegi zihamba ngokungaqikelelekiyo xa zithelekiswa nomfundi{7} ochaza uninzi lwemfuyo kunye neemeko ezininzi zendibano{8}}.
Uvavanyo olunyanisekileyo: I-LF eyandisiweyo{0}}izisombululo zokufunda zithatha ibhendi ethile{3}}0.5 ukuya kwi-2 yeemitha, ubume be-RF enobutshaba, izicelo apho{4}}uvakalelo lwexabiso lethegi nganye lungaphantsi kuneendleko zeziseko ezingundoqo zomfundi ngamnye. Ngaphandle kwelo qela, i-UHF ihlala iphumelela. Ngaphakathi kwayo, i-UHF ihlala isilela. Yazi ukuba yeyiphi ibhendi iprojekthi yakho iwela kuyo ngaphambi kokuba uchaze nantoni na.
UFakelo Lweempazamo Siyilungisile
Eyona mpazamo ibiza kakhulu kwi-LF ende-umgama weeprojekthi zeRFID ayithengi ihardware engalunganga{1}}ifaka iihardware ezichanekileyo ngokungalunganga. Nazi iipateni ezintathu zokusilela esibiziweyo ukuba sizilungise.
I-Phantom ifundeka kubafundi abanamandla abulala iprojekthi ye-Monterrey Logistics ngaphambi kokuba sibandakanyeke.Umdibanisi uchithe iiveki ezintathu elungisa ingxaki yesiporho. Umfundi wayemiselwe kwisiphumo esisemthethweni esiphakamileyo, sandise intsimi kakuhle ngaphaya kwendawo yokufunda ecetywayo kunye nokuchola iithegi kwiindlela ezikufutshane. Ukulungiswa kwethu kuthathe iiyure ezimbini: amandla ehla ukuya kwi-60% (malunga ne-18 dBm), yongeza iiphaneli ze-RF absorber kwimida yezowuni. Amandla aphikisayo, kodwa asezantsi avelise idatha ecocekileyo.
ILab-uluhlu oluqinisekisiweyo aluhlali ludibana nezakhiwo zentsimbi.Umfundi onyuswe kwi-30 cm ukusuka kwintsimbi yentsimbi unokulahlekelwa yisiqingatha soluhlu olusebenzayo ngenxa yokuphazamiseka kwemisinga ephazamisa ijometri yentsimi. Ngoku sifuna{2}}ngaphambili uphononongo lwendawo yokubekwa kunye nohlalutyi olubanzi kuyo nayiphi na iprojekthi ebandakanya izakhiwo zentsimbi. Ayingokuzikhethela{4}}ngumahluko phakathi kwenkqubo esebenza kusuku lokuqala kunye nedinga imijikelo emibini yokubekwa ngokutsha emva kokuhamba{5}}ukuphila.
Ikrwada ifundeka ngombhobho ngokuthe ngqoWMStshabalalisa ukuchaneka kwedatha.Ngaphandle kohluzo oluphakathi{0}}lokuphinda-phinda ukususwa, hlala{1}}kwimida yexesha, indawo{2}esekwe kunciphiso{3}}ukuchaneka okukholisa ukuhlala ngaphantsi kwe-75%. Kwezintathu zeLF{6}}ukuya{7}}kudibaniso lweWMS esiluphicothe kule minyaka mibini idlulileyo, ukuchaneka okusisiseko phambi kohluzo lwasuka kuma-68% ukuya kuma-79%. I-hardware isebenze kakuhle; udibaniso lwesoftware alwenzanga.
Ukuba ukhangela iithegi zoluhlu olude lweLF kumthengisi omtsha, buza ukuba baziphatha njani ezi meko. Umthengisi othengisa kuphela iithegi kunye namanqaku kuwe kwenye indawo ukuze ulungelelanise umfundi okanye inkxaso yokudibanisa ikunika iinxalenye ngaphandle kwemiyalelo yendibano.
Ukukhetha i-Hardware ngaphandle kokuhlawula ngaphezulu
Ukuthenga isambuku se-125 kHz eyandisiweyo-iithegi zokufunda, i-spec sheet ibalulekile ngaphantsi komxholo wokusasazwa. Ithegi elinganiselwa kwi-80 cm kwisitulo esiphezu kwebhentshi inokuhambisa i-40 cm kwiplanti yokufaka isitampu erhangqwe zizifudumezi zokufudumeza.
Nantsi into esiyixelela abathengi ukuba bayenze ngaphambi kokuba bazibophelele kwiiodolo zevolumu.
Faka isicelo{0}}uqinisekiso oluthile.Cela umthengisi ukuba avavanye kweyona mathiriyeli{0}}okanye ubuncinci, imathiriyeli ene-conductivity efanayo kunye nobukhulu. Ukuba abanakho ukunika ukufunda-igophe lomgama phantsi kweemeko zakho, yiflegi ebomvu leyo.
Bala iindleko zenkqubo iyonke, hayi ixabiso leyunithi.Amakhadi eClamshell aneekhoyili ezinkulu axabisa ngaphezulu kwiyunithi nganye kodwa anokuvumela ukuba usebenzise abafundi abambalwa. Iithegi zediski ze-Epoxy -zokufakwa kwentsimbi yongeza elinye inqanaba leendleko kodwa ushenxise imfuneko yesikhewu sehardware. Eyona thegi inexabiso eliphantsi ngeyunithi ayifane ibe yeyona nkqubo inexabiso eliphantsi ebekwe.
Jonga iziqinisekiso ngokuchasene nokusingqongileyo.Icandelo le-FCC 15 kunye ne-CE zisisiseko. Ukusasazwa kwemizi-mveliso kuya kudinga i-IP67/68 ezivalekileyo kubafundi kunye nokuxhathisa kweekhemikhali kwiithegi ezivezwe kwizipholisi okanye iiarhente zokucoca. Ukusika iikona apha kuguqula iprojekthi enkulu ibe yinto yomgca wokutshintshwa ophindaphindiweyo.
Sigcina isitokhwe kwezona zinto zixhaphakileyo ze-125 kHz kunye ne-134.2 kHz zefom yefom yezicelo zemizi-mveliso. Ukuba ufuna ukwenza uhlolo olunokwenzeka kunye neqela lobunjineli bakho, sithumelele iiparameters zesicelo sakho-uhlobo lwezinto eziphathekayo, umgama ofunekayo wokufunda, umthamo wenyanga, iimeko zokusingqongileyo{4}}kwaye siyakuhlanganisa ingcebiso yendlela kunye{5}}nothelekiso lweendleko zeminyaka emithathu kwiiyure ezingama-48.Cela uthethwano lobugcisa →
FAQ
Umbuzo: Loluphi uluhlu lokufunda endinokuthi ndilulindele ngokwenyani kwiithegi ze-LF?
A: Iithegi zekhadi ze-ISO{0}}ezisemgangathweni zifikelela ku-60–100 cm ngokufunda okulungiselelwe; iifomathi ze-clamshell ezinobukhulu obungaphezulu zingadlula i-130 cm. Kodwa la manani athatha iimeko ezifanelekileyo-ukusondela kwentsimbi kunye nokuqhelaniswa nethegi kunokusika uluhlu olusebenzayo ngama-40–50%. Ekuphela kwendlela yokwazi uluhlu lwakho kukuvavanya kwimathiriyeli yakho yokwenyani.
Umbuzo: Ngaba iithegi zeLF zisebenza ngokuthembekileyo kwimigangatho yentsimbi?
A: Ingcono kune-UHF kumaxesha amaninzi, kuba i-LF magnetic fields igqobhoza -isinyithi esinentsimbi kunye nokuthomalalisa okuncinci. Kodwa iindawo ezinkulu ze-ferrous zisenokwenza ukugqwetheka kwentsimi. Kwi{3}}yokufakwa kwentsimbi, cela iithegi ezineethegi ezakhelwe ngaphakathi{4}ezijukujukwini okanye kwi-ferrite backing.
Q: Ingaba isiqingatha -ithegi ze-LF ezisetyenziswayo zithelekiseka njani kwiinketho zokwenziwa ngokupheleleyo?
A: Semi-i-passive yandisa uluhlu nge-35-45% kuvavanyo lwethu, kodwa ixabisa i-3-5× ngaphezulu ngethegi kwaye ifuna ulawulo lomjikelo webhetri. I breakeven ixhomekeke ekufundeni kwakho{6}}ukuxinana kweengongoma kunye neendleko zabasebenzi{7}}singaqhuba uthelekiso loyilo lwakho oluthile ukuba usithumelele iparameters zesayithi.
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