Ib tsab xov xwm luv luv los qhia koj txog RFID

Hais txog RFID, ntau tus phooj ywg yeej tsis tau hnov ​​​​los yog tsis tau hnov ​​​​txog nws tab sis tsis paub nws yog dab tsi. Thaum peb txheeb xyuas ntawm lub khw muag khoom, tus neeg khaws nyiaj tuaj yeem txheeb xyuas cov khoom nrog nthwv dej ntawm barcode scanner; thaum peb hla qhov chaw nres tsheb loj, tus nqi tuaj yeem txiav tawm yam tsis tau nres; thaum peb qiv cov phau ntawv los ntawm lub tsev qiv ntawv, tus thawj coj tuaj yeem ua tiav cov ntawv sau npe nrog lub teeb scan; cov sij hawm sib txawv no txhua tus zais tib yam "invisible hero" - RFID.

RFID tau yug los ntev dhau los, ntsiag to ua haujlwm rau txhua qhov chaw ntawm lub neej hauv txhua lub ces kaum. RFID yog lub npe luv ntawm Xov Tooj Cua Zaus ID, thiab nws lub npe Suav yog wireless xov tooj cua zaus txheeb xyuas. Cias muab tso, nws yog ib qho uas tsis yog - tiv tauj tsis siv neeg identification thev naus laus zis uas tuaj yeem paub txog kev txheeb xyuas cov ntaub ntawv yam tsis muaj kev cuam tshuam tib neeg.

Kev tsim kho ntawm RFID

Daim ntawv thov ntawm RFID tuaj yeem taug qab rov qab mus rau Ntiaj Teb Tsov Rog II, thaum Asmeskas tub rog siv nws los txheeb xyuas lub dav hlau Allied kom tsis txhob yuam kev ntaus phooj ywg. Nws pib nce hauv xyoo 1980 thiab maj mam loj tuaj. Ntxiv nrog rau cov tub rog, hauv ntau lwm yam kev lag luam, tib neeg muaj qhov xav tau los txheeb xyuas ntau yam khoom. Vim li no, ntau daim ntawv lo yuav tsum tau txuas nrog cov khoom, thiab ntau cov ntaub ntawv yuav tsum tau nkag rau ntawm cov ntawv. Qhov no yog qhov pov tseg ntawm lub sijhawm thiab cov neeg ua haujlwm, thiab cov ntaub ntawv yuam kev yog qhov siab. Yog li txhawm rau txuag kev ua haujlwm thiab tso lawv txhais tes, tib neeg tau pib nrhiav txoj hauv kev uas tuaj yeem txheeb xyuas tau, thiab RFID tau los ua. Nws pab tib neeg daws tau ntau yam teeb meem xws li qeeb phau ntawv nkag ceev, kev ua yuam kev siab, kev ua haujlwm siab, kev ua haujlwm yooj yim thiab rov ua dua, thiab lwm yam, thiab tseem txhim kho qhov tseeb - lub sijhawm thiab qhov tseeb ntawm cov ntaub ntawv, ua kom yooj yim rau kev ua haujlwm ntawm ntau yam kev lag luam.

Kev sib xyaw ntawm RFID

Cov muaj pes tsawg leeg ntawm RFID yog yooj yim heev, muaj peb yam: hluav taws xob tag, kav hlau txais xov thiab nyeem ntawv. Cov no yog txhua qhov tseem ceeb ntawm RFID kom ua tiav nws txoj haujlwm.

Electronic tag

Cov cim hluav taws xob yog cov khoom siv micro uas khaws cov ntaub ntawv lub hom phiaj (xws li ID, cov ntaub ntawv tus cwj pwm), uas yog sib npaug rau "wireless ID card". Nws lub luag haujlwm tseem ceeb yog kom tau txais lub zog, txheeb xyuas cov lus qhia, thiab cov ntaub ntawv tawm tswv yim.

Kav hlau txais xov

Lub kav hlau txais xov yog lub cev kis tau tus mob channel ntawm lub zog thiab cov teeb liab ntawm tus nyeem ntawv thiab lub cim npe. Nws lub luag haujlwm tseem ceeb yog xa thiab tau txais cov teeb liab.

 

Nyeem ntawv

Tus nyeem ntawv yog digital transceiver, lub luag haujlwm rau kev pib sib txuas lus, ua cov cim, thiab tswj cov ntaub ntawv sib cuam tshuam, uas yog sib npaug rau "wireless card reader".

 

Kev ua haujlwm ntawm RFID

Lub hauv paus ntsiab lus ua haujlwm ntawm RFID tsis nyuaj. Cov lus ntawm kev sib txuas lus ntawm RFID thiab nyeem ntawv yog electromagnetic tsis. Tus nyeem ntawv, kav hlau txais xov thiab hluav taws xob tag paub txog kev hloov hluav taws xob thiab cov ntaub ntawv sib cuam tshuam los ntawm electromagnetic tsis. Kev sib raug zoo ntawm kev sib raug zoo tuaj yeem raug sau tseg raws li hauv qab no: tus nyeem ntawv xa cov lus qhia thiab tau txais cov teeb liab rov qab ntawm lub cim npe nyob rau hauv kev tswj hwm ntawm tus tswv tsev, lub kav hlau txais xov yog lub luag haujlwm rau emissions thiab txais tos ntawm electromagnetic nthwv dej, thiab hluav taws xob tag passively los yog nquag teb thiab tawm tswv yim cov ntaub ntawv.

RFID Electronic tag

Daim npav hluav taws xob yog sib npaug rau "daim npav ID" ntawm RFID. Nws feem ntau muaj ob qhov chaw khaws cia - thaj chaw ID khaws lub ntiaj teb tshwj xeeb "daim npav tus lej" (UID), uas tsis tuaj yeem hloov pauv los ntawm leej twg; tus neeg siv cov ntaub ntawv cheeb tsam zoo li lub notepad, qhov twg koj tuaj yeem sau thiab kos tau raws li qhov xav tau, kom txhua tus tuaj yeem khaws cov ntaub ntawv lawv xav tau. Kav hlau txais xov
Lub kav hlau txais xov yog sib npaug rau "lub qhov ncauj" thiab "pob ntseg" ntawm RFID, lub luag haujlwm xa thiab tau txais cov cim hluav taws xob hluav taws xob, tso cai rau RFID "sib tham" nrog tus nyeem ntawv. Nyeem ntawv
Tus nyeem ntawv yog sib npaug rau "tus neeg txhais lus" ntawm RFID. Tus nyeem ntawv thawj zaug xa cov teeb liab los ntawm tus kav hlau txais xov. Tom qab tau txais nws, RFID xa cov ntaub ntawv hauv daim ntawv rov qab mus rau tus nyeem ntawv los ntawm tus kav hlau txais xov. Thaum kawg, tus nyeem ntawv xa cov ntaub ntawv mus rau tus tswv tsev kom ua tiav qhov kev txheeb xyuas.

RFID zaus

RFID tuaj yeem muab faib ua plaub pawg raws li qhov zaus: tsawg zaus, siab zaus, ultra-siab zaus thiab microwave. Ntau zaus muaj cov yam ntxwv sib txawv thiab ua lub luag haujlwm tshwj xeeb hauv cov xwm txheej sib txawv.

 

Tsawg- zaus (125KHz)

Zoo li tus neeg qeeb - txav mus los, hais lus mos muag, tus nyeem ntawv yuav tsum nyob hauv 1.2 meters kom hnov ​​​​qhov tseeb. Tab sis nws muaj zog nkag mus thiab tsis tuaj yeem thaiv los ntawm cov teeb meem uas tsis yog hlau, haum rau ze - thaj chaw xws li chaw nres tsheb thiab kev tswj kev nkag.

High zaus (13.56MHz)

Zoo li "tshuab phom" nrog kev hais lus nrawm, tab sis qhov kev sib kis deb kuj yog li 1.2 meters. Feem ntau nws tuaj yeem pom hauv cov tsev qiv ntawv qiv nyiaj thiab kev tswj xyuas kev kho mob.

Ultra{0}}ntau zaus (860-960MHz)

Zoo li "lub suab nrov + lub qhov ncauj ceev", nws tuaj yeem sib txuas lus txawm tias nws sawv ntawm 4 meters deb, thiab nws muaj nws tus kheej lub zog hluav taws xob (ua haujlwm), tsim nyog rau cov xwm txheej uas yuav tsum tau qhia ceev ceev xws li cov kab ntau lawm thiab kev tswj lub thawv.
Microwave (2.45GHz, 5.8GHz)
Zoo li "ntev-kev sib tw khiav deb", nws tuaj yeem kis tau mus txog ntau dua 100 meters, thiab kev txheeb xyuas lub tsheb ntawm lub xov tooj ntawm tes thiab kev tswj xyuas cov chaw taws teeb cia siab rau nws.

Active thiab passive

Qhov kev ncua deb ntawm cov ntaub ntawv tsis yog nyob ntawm qhov zaus, tab sis kuj nyob ntawm ntau lwm yam. Piv txwv li, txoj kev siv hluav taws xob yuav tsum tau qhia tom ntej no yog ib qho ntawm kev txiav txim siab. RFID tau muab faib ua ob hom raws li txoj kev siv hluav taws xob, uas yog active RFID thiab passive RFID, uas kuj sib xws rau txoj kev nquag (active) thiab passive method (passive) hauv txoj kev sib txuas lus.

 

Tsawg zaus

Tsawg zaus feem ntau yog passive. Passive electronic tags tsis muaj lawv tus kheej lub zog thiab tsis muaj zog. Lawv tsis tuaj yeem hais lus nquag. Lawv xav tau tus nyeem ntawv kom xa xov tooj cua nthwv dej rau lawv. Lawv siv qhov tau txais tam sim no los qhia lawv cov ntaub ntawv rau cov neeg nyeem. Lawv zwm rau tsev neeg passive. Txawm hais tias tsawg zaus hais lus maj mam thiab ntsiag to, lawv lub suab muaj zog nkag mus. Cov teeb meem dav dav tshwj tsis yog hlau tsis tuaj yeem thaiv kev sib txuas lus ntawm lawv thiab tus nyeem ntawv. Txawm li cas los xij, vim lawv qhov kev sib txuas lus tsawg tsawg, lawv feem ntau ua haujlwm hauv kev tswj hwm tsiaj, kev tswj hwm kev sib tw kis las, thiab lwm yam, uas tsis tas yuav muaj kev ncua deb.

 

Ntau zaus

High zaus feem ntau yog passive. Ntxiv nrog rau cov hlau, lub teeb liab kuj tuaj yeem dhau los ntawm cov khoom siv feem ntau, tab sis cov teeb meem no yuav txo qhov kev ncua deb ntawm lawv cov suab nrov. Lawv siv rau hauv qhov chaw nres tsheb tsis siv neeg them nqi, tsev so thiab kev tswj xyuas hauv zej zog, tswj tsev qiv ntawv thiab lwm qhov chaw.

 

UHF

UHF feem ntau yog passive, thiab UHF cov cim tsis tuaj yeem nkag mus rau hlau. Hlau muaj qhov cuam tshuam tseem ceeb thiab muaj zog ntawm RFID UHF cov cim, thiab yog ib qho ntawm feem ntau muaj kev cuam tshuam hauv UHF RFID daim ntawv thov. UHF feem ntau yog siv nyob rau hauv cov kab ntau lawm automation, aviation pob tswj, tswj lub thawv, railway pob tswj thiab lwm qhov chaw uas yuav tsum tau high kis tau tus mob.

 

Txoj kev yooj yim tshaj plaws kom paub qhov txawv ntawm qhov nquag thiab tsis muaj zog yog saib seb lub tshuab hluav taws xob puas muaj nws tus kheej lub zog. Cov cim npe nrog lawv tus kheej lub hwj chim mov yog active, thaum lub cim npe tsis muaj fais fab mov yog passive

 

Microwaves

Microwaves feem ntau ua haujlwm, thiab microwave hluav taws xob cov cim npe muaj lawv tus kheej lub zog. Yuav kom ua tiav qhov kev hais lus ntau zaus, lawv yuav tsum muaj lawv tus kheej lub zog los muab lub zog. Nws kuj tseem yog vim lawv tus kheej lub zog hluav taws xob uas lawv tuaj yeem xa xov tooj cua zaus cov cim qhia rau tus nyeem ntawv, thiab lawv tus kheej lub zog tuaj yeem tso cai rau lawv cov teeb liab kis tau mus deb. Microwave RFID yog dav siv nyob rau hauv kev txheeb xyuas cov tsheb thauj mus los, hluav taws xob cov chaw taws teeb tswj, thiab lwm qhov chaw uas muaj kev xav tau siab rau kev sib kis ceev thiab kev sib kis. Coj tus lej xov tooj tsis siv neeg siab - tsheb ETC ceev ua piv txwv. Txij li thaum lub tsheb txav nrawm dua thaum nws txav mus, yuav tsum muaj lub microwave RFID nrog kev hais lus nrawm dua. Tus tswv tuav lub tshuab hluav taws xob microwave hauv lub tsheb. Lub microwave hluav taws xob tag muaj nws tus kheej lub hwj chim mov thiab emits electromagnetic nthwv dej los ntawm tus kav hlau txais xov txhua lub sijhawm los kos nws qhov chaw. Thaum lub tsheb hla dhau qhov chaw nres tsheb, tus nyeem ntawv xa cov teeb liab los ntawm nws lub kav hlau txais xov kom tau txais cov ntaub ntawv tsheb. Lub microwave hluav taws xob tag kis cov ntaub ntawv tsheb mus rau tus nyeem ntawv. Tus neeg nyeem tau txais cov ntaub ntawv thiab suav cov nqi them raws li lub tsheb qauv thiab kev ncua deb, thiab tom qab ntawd xa cov ntaub ntawv ua tiav (tus xov tooj hu) rov qab mus rau lub tshuab hluav taws xob microwave. Tom qab ntawd lub tsheb tuaj yeem hla tom qab tus tswv them tus nqi. Tag nrho cov txheej txheem yog ceev li 2 vib nas this, uas yog heev npaum.

RFID daim ntawv thov

Txhua qhov chaw ntawm lub neej tau txais txiaj ntsig zoo los ntawm kev nrov nrov thiab kev siv RFID thev naus laus zis. Piv txwv li, kev lag luam khw muag khoom ib txwm tso siab rau barcodes rau kev tswj xyuas cov khoom muag, uas yuav tsum tau siv phau ntawv scanning ntawm txhua yam khoom. Tsis tsuas yog nws tsis muaj txiaj ntsig (1,000 square meter loj cov khw muag khoom lag luam yuav siv sijhawm ob peb teev lossis txawm tias 1 hnub), tab sis nws kuj yooj yim rau distort cov ntaub ntawv vim tias tsis raug lossis tsis raug scanning, uas ua rau "tawm ntawm Tshuag" lossis "rov qab" teeb meem. Tom qab siv RFID thev naus laus zis, RFID cov cim npe tuaj yeem sau tag nrho cov ntaub ntawv ntawm lub neej ntawm cov khoom xws li warehousing, shelving, sales, and returns, and the system updates inventory status in real time. Cov khw muag khoom tuaj yeem nkag siab "cov khoom twg nyob ntawm lub rhawv, uas yog nyob rau hauv lub warehouse, thiab cov uas yuav raug muag tawm", zam "tawm ntawm cov khoom tsis tseeb" (cov khoom yog nyob rau hauv lub warehouse tab sis tsis nyob rau hauv lub rhawv) los yog ntau stockpiling vim cov ntaub ntawv lags, thiab txhim kho cov khoom muag turnover efficiency los ntawm 20% -50%.

 

Hauv kev lag luam warehousing thiab logistics, kev nkag thiab tawm ntawm cov khoom yav dhau los yuav tsum tau suav cov ntawv suav thiab cov ntawv sau npe, uas tsis yog siv ntau lub zog thiab sijhawm. Tam sim no uas RFID thev naus laus zis tau txais yuav, forklifts tuaj yeem nyeem cov ntaub ntawv thauj khoom sai ntawm kev nkag thiab tshem tawm, thiab xa cov ntaub ntawv nkag mus thiab tawm mus rau cov ntaub ntawv loj loj. Cov neeg ua haujlwm hauv tsev khaws khoom tuaj yeem pom cov xwm txheej ua haujlwm ntawm lub tsev khaws khoom ntawm ib nrais muag los ntawm pawg thawj coj saib cov ntaub ntawv.
RFID thev naus laus zis tau siv rau kev tswj hwm kev thauj mus los thiab kev tswj cov khoom lag luam, thiab qhov tseeb thiab qhov tseeb tau mus txog lossis txawm tias dhau 99%, uas yog ntau dua li qhov tseeb ntawm kev tswj xyuas qhov muag pom yav dhau los, txo cov nqi pov tseg ntawm kev lag luam thiab qhov tshwm sim ntawm pob xa khoom yuam kev. Tag nrho cov khoom siv logistics raug kaw cia thiab cov ntaub ntawv raug tsim tawm, uas ua rau nws yooj yim dua los txhim kho kev taug qab thiab txheeb xyuas.

 

Qhov tseeb, RFID yog nyob txhua qhov chaw hauv peb lub neej. Thaum koj siv daim npav nkag mus qhib qhov rooj thaum koj nyob hauv tsev so, thaum koj siv daim npav neeg ua haujlwm los xuas nrig ntaus hauv lub tuam txhab, thaum koj los so daim npav qiv cov phau ntawv los ntawm lub tsev qiv ntawv, thiab thaum koj nkag mus thiab tawm ntawm qhov chaw nres tsheb cia li, qhov RFID tej yam yees siv no tau ua haujlwm. Tom qab nyeem cov lus qhia saum toj no, koj puas muaj kev nkag siab tob txog RFID?

Yog xav paub ntxiv, xav tias dawb niasTiv tauj peb.