RFID Electronic label puce bɛ gundo jira .

A bɛɛ lajɛlen na, ɛntɛrinɛti taamasiyɛnw bɛ kɛ ni taamasiyɛn kɛrɛnkɛrɛnnen puce ye ani tag antenna{0}} puce bɛ kɛ ka fɛnw kunnafoniw mara, ani antɛni bɛ kɛ ka arajolakalanw ci ani ka u sɔrɔ. Electronic tags ka puce ka dɔgɔ kosɛbɛ wa a ka c’a la a tɛ tɛmɛ 0 35mm kan Antɛni bonya ka bon kosɛbɛ ka tɛmɛ puce ta kan, wa antɛni cogoya bɛ tali kɛ baarakɛcogo la, etc. Electronic label min bɛ a kɔnɔ, o hakɛ bɛ se ka kɛ 2mm ye walima a ka bon i n’a fɔ sigida ID karti.

 

A fɔlɔ, puce bɛ yen. Electronic tag pucew jɔcogo la frequency bands danfaralenw na, o bɛ tali kɛ ɲɔgɔn na kosɛbɛ, a ka c’a la, RF ɲɛfɛla/Analog ɲɛfɛ-yɔrɔ, CPU walima Logic control unit, memory ani modules wɛrɛw. RF ɲɛfɛ-yɔrɔ bɛ kɛ kɛrɛnkɛrɛnnenya la RF taamasiyɛnw labɛnni ni kɔseginlenw ye CPU bɛ Kɛ kɛrɛnkɛrɛnnenya la taamaʃyɛnw kodeli/decode (dekode) la ani ka collision (baarakɛcogo) kɛlɛli protocol (labɛn)w baara; Memori bɛ kɛ ka kunnafoni mara, i n’a fɔ RAM, EEPROM, wdfl.

 

RF ɲɛfɛla bɛ kuran minɛ ka bɔ tag antenna na ani a bɛ baara kɛ i n’a fɔ fanga sɔrɔyɔrɔ ka se chip ma rectification ni stabilisation kɔfɛ. RF ɲɛfɛla labɛnni ka kan ka gɛlɛya jateminɛ ka ɲɛ ni antenna ye, fanga ni voltage ka baarakɛcogo ɲuman, ani bɛnkan ko ni data modulations différents ka bɔ kalanden ni sɛbɛnnikɛla la{{. walasa ka dɔ fara baarakɛcogo ɲuman kan ka ɲɛsin TAG ma ani ka se ka dɔ fara TAG kan ani ka se ka dɔ fara a ka baarakɛcogo kan ani a bɛ se ka bonya.

 

Microprocesseurs bɛ kɛ ka baara kɛ ani ka baara kɛ ni digital signals ye, i n’a fɔ kalan ni sɛbɛnni ka kɛ memory la{0}} Programme module sɛbɛnnen bɛ ROM kɔnɔ kode cogo la ani a sɛbɛnna kaban chip kɔnɔ chip bɔli senfɛ. for baseband signal coding (digital modulation), a bɛ sɔrɔ kodeli fɛɛrɛ caman na nin cogo in na: NRZ (return non return to zero) coding, manches, manches, manches, manches, manched, manches coding, manches coding, manches coding. etc.

 

Kunnafoni minnu bɛ taamasiyɛn ni kalanden/sɛbɛnnikɛla cɛ, olu bɛ sɔrɔ cogo fila la: 0 ani 1, minnu jiralen bɛ kuran pulsi taamasiyɛn kɛrɛnkɛrɛnnen na{. frequency band min bɛ DC fɛ, o ye DC walima low-frequency ye, min bɛ wele ko baseband signal, min bɛ lase ni IC karti ye min bɛ wele ko signes de signes de numérique, qui a quelqués par le haute, qui a quelqués par la qualité de base de base de la tags, qui a quelquées par le signes de base de base de base de la signé Carriers. Baseband numérique signals bεε bε bεn ka kε signɛw ye minnu bε bεn ni bεnkansεbεn ye, o bε Weele ko modulasiyɔn. sεbεn laban na, sεbεnw bεε bε bεn ni baseband numérique signals ye, o bε Weele ko demodulation. sεbεn min b’a To data transmission bɛ Weele ko arajo frequency interface{{111}}.

 

O kɔfɛ, ɛntɛrinɛti kan tag puce ka RF ɲɛfɛ-yɔrɔ bɛ yen, min ka teli ka kɛ ɛntɛrinɛti kan tag puce dɔ ye ani a bɛ elekitoroniki tag antenna siri ni chip circuit numérique yɔrɔ ye. data minnu bɛ ci logique control unit fɛ chip kɔnɔ, olu bɛ se ka don antenna kan dɔrɔn, u kɛlen kɔ ka sɛgɛsɛgɛli kɛ RF ɲɛfɛla fɛ, ka kɛ RF taamasiyɛn ye ko antenna bɛ se ka ci Demodulation unit bɛ baara kɛ ni modulated signal ye walasa ka taamasiyɛn fɔlɔ sɔrɔ; Voltage regulation unit bɛ baara kɛ kosɛbɛ walasa ka RF taamasiyɛn min sɔrɔla kalanden fɛ, o sɛmɛntiya ka kɛ kuran ye, o bɛ fanga sabatili sabati ni tension stabilisant circuit. ye.

 

RF interface yɔrɔ bɛ kɛ kɛrɛnkɛrɛnnenya la ni jaabi yɔrɔ ye, ni cikan yɔrɔ ye min bɛ ci, ani kafoda yɔrɔ jɛlen.

(1) jaabi yɔrɔ min bɛ sɔrɔ yɔrɔ min na, o baara kunba ye ka taamasiyɛn amplitude modulati sɔrɔ antɛni kan, ka baseband digitɛri sɔrɔ ka bɔ a la, ka sɔrɔ k’a ci kunnafoni yɔrɔ la decoding processing kama. yɔrɔ min na, o bɛ kɛ kɛrɛnkɛrɛnnenya la anwɛlɛkiw ka sɛrɛkili ye ani detection circuit{{3} min bɛ anvelope generation circuit , o ye ka ENVELOPE Circuit ka sɛrɛkili kɛ, o ye ka kɛ sababu ye ka anvelope generation circuit kɛ. K’a ta frequency band la ka se baseband ma. enveloppe generation circuit bɛ kɛ kɛrɛnkɛrɛnnenya la ni nonlinear components ani low-pass filters. detection circuit ye kɛrɛnkɛrɛnnenya la bandpass filter ye ani tension comparateur. anwɛlɛki dɔnni kɔfɛ, o la hali bi a ka kan ka kɛ ni freincy yɔrɔbaw ye, o la bandpass filɛri fana ka kan ka filɛri kɛ ka ɲɛ ka ɲɛsin carrier wave ma, min bɛ kɛ ka curve curve kɛ ka ɲɛ, o bɛ kɛ sababu ye ka curve curve kɛ ka ɲɛ. Filɛlilen taamasiyɛn bɛ tɛmɛ tension comparateur fɛ walasa ka taamasiyɛn nimɔrɔ fɔlɔ lasegin.

 

(2) Ka dakun ci. Cikan dakun baara kunba ye ka ask amplitude modulation kɛ digitɛri kodeli taamasiyɛn kan min bɛ baara kɛ ni kunnafoni dakun ye, k’a bonya, k’a ci antɛni laban na, ka sɔrɔ k’a ci kalanden/sɛbɛnnikɛla ma{. A bɛ kɛ kɛrɛnkɛrɛnnenya la ask modulation circuits ani amplifiers{{{3} ye.

Ni ɛntɛrinɛti taamasiyɛn dɔ bɛ kunnafoni di kalan ni sɛbɛnnikɛminɛn dɔ ma, a ka kodɔn/dekoding sɛrɛkili bɛ kunnafoni kodɔnnenw ci RF ɲɔgɔndan na, ani o kɔfɛ, modulasiyɔn sɛrɛkili bɛ ask modulation kɛ a kan. Ask adopts load modulation reverse modulation, o min bɛ taamasiyɛn cikan ka amplitude caman Changer antenna load. la, o ye fɛn ye min bɛ se ka fɛn caman wuli ka bɔ ɲɔgɔn na. control the connection or disconnection of parallel loads in the circuit, thereby changing the size of the antenna load to modulate the amplitude of the encoded data. However, due to the low power of the modulated ASK signal, it cannot meet the transmission requirements. Therefore, the ASK signal needs to be power amplified before being sent to the antenna transmitter and the reader/writer.

 

(3) Circuit part part. Clirt commune yɔrɔ bɛ sɔrɔ kafoda la, kafoda dantigɛli, ani circuit reset, etc{.

K’a sababu kɛ taamasiyɛn wɛrɛ ye min bɛ ɲɔgɔn falen (voltasiyɔn sɔrɔyɔrɔ) ka bɔ RF foro la antɛni dakun fila bɛɛ la, a bɛ se k’a sɛmɛntiya ani ka filɛri kɛ walasa k’a sɛmɛntiya ka kɛ DC fanga sɔrɔyɔrɔ ye. k’a sababu kɛ a wajibiyalen don ko ɛntɛrinɛti taamasiyɛn kɔnɔna na, a tɛ dan o ma, o bɛ se ka kɛ sababu ye ka fanga sɔrɔ, o la, a bɛ se ka kɛ ko a ka kan ka kɛ ko a ka kan ka kɛ fɛn ye min bɛ se ka kɛ sababu ye ka fɛn caman kɛ. Tiɲɛni. Aw bɛ aw jigi da rectification ni filtering circuit dɔrɔn kan, o tɛ se ka voltage Changer antenna dakun fila bɛɛ la ka kɛ voltage value wajibiyalen ye, o la a ka kan ka dan sigi module module. la.

 

Siginidenw bɔli sɛrɛkiliw ka baarakɛcogo bɛ tila suguya fila ye: fanga min bɛ reset ni fanga bɔli la reset. fɔlɔ, nafa dɔ ka kan ka sigi sen kan voltage kama, o min ka teli ka kɛ voltage nafa ye sɛrɛkili baarakɛcogo sabatilen na. Ni fanga dicogo wulili bɛ wuli, n’a bɛ dɔgɔya hali bi ka tɛmɛ reference signal kan hali bi hakɛ dɔgɔman na If the power supply voltage rises above the reference value, the reset signal jumps to a high level. This is the power on reset signal, which sets the initial value for the digital circuit to avoid logical confusion. At the same time, it can also give the entire system a stable time to ensure that the energy coupled to both ends of the antenna has reached relative stability. When the power supply voltage decreases, if it is greater than the reference value, the reset signal ye sanfɛta ye; Ni a dɔgɔyara ka se hakɛ ma min bɛ se ka fɔ, fanga taamasiyɛn bɛ pan ka se dɔgɔya ma, o ye fanga-da-segin taamasiyɛn ye. o ye lakanani fɛɛrɛ ye min bɛ ta ko minnu ma labɛn, n’o bɛ se ka kɛ sigida la (i n’a fɔ fanga tiɲɛni barikama baarakɛ waati).

 

Ni RFID fɛɛrɛw kɔgɔra ani u sabatili, RFID ka fɛnw bɛ ka bɔ kɛnɛ kan dan tɛ minnu na, ani RFID sugu bɛ fa dɔɔnin dɔɔnin. RFID chip tags bɛ baara kɛ kosɛbɛ kɛrɛnkɛrɛnnenya la feerelikɛyɔrɔw, iziniw, furakɛli, sɔrɔdasi minɛnw, lotɛliw ani foro wɛrɛw la{{{{{{{{. RFID pucew bɛ sɔrɔ cogo min na, o bɛ kɛ cogo min na sugu la? Tiɲɛ na, RFID pucew sɔngɔ bɛ danfara ka kɛɲɛ ni labeli suguya n’a kɛcogo ye. laban na, a ka fisa ka kumaɲɔgɔnya kɛ ni fɛn kɛrɛnkɛrɛnnen sɔngɔ ye ni "Syntek" dilannikɛla ye.