Rfid laika hti ai wa a bungli galaw ai lam hpe chye ai kun?

RFID radio frequency hpe chye ginhka ai lam gaw, radio hpe lang nna signal ni hpe htawn tsun ai lam rai nna, dai gaw no{0}}} n bung ai shiga ni hpe chye na lu ai. RFID system gaw kaja wa bungli galaw lu na matu, n yawm htum daw lahkawng ra ai: electronic tag hte laika hti ai wa. Electronic tag gaw radio frequency hpe chye ginhka ai ladat a data htaw ai lam re. Dai hpe tag antenna hte tag- a laksan chip hte hpawng de da ai. RFID hti ai wa gaw data ni hpe hti na matu madung jak re.

RFID hti ai wa gaw (reader) antenna hku nna RFID electronic tag hte wireless hku matut mahkai nna, tag hpe chye ginhka ai code hte memory data ni hpe hti (sh) ka mai ai. Laika hti ai masha langai hta, tsaw ai{1}} a n-gun kaba ai module (transmitter hte receiver), hkang ai unit, laika hti ai wa a matu antenna lawm ai.

RFID hti ai ni a bungli galaw ai lam

Radio frequency signal a shara (n-non{0}}contact) gaw, electronic tag hte laika hti ai wa a lapran na coupling element hku nna byin pru wa ai. Coupling channel hta, n-gun dat shabra ai lam hte data galai shai ai lam ni hpe aten masat masa hte maren chye na la lu ai. RFID system ni a bungli galaw ai lam ni hpe grau chye mayu yang, ndai laika hpe yu u: RFID system ni a bungli galaw ai lam gaw hpa rai ta?

RFID hti ai wa a bungli galaw ai lam:

.

2. Baseband processing module encode ni hpe encode galaw nna, baseband signal hpe shapraw na matu label hpe chye ginhka ai layer matsun ni hpe galai shai ya ai, dai hpe channel lahkawng hku garan nna, interface hku nna shalai ya ai.

3. Data ni hpe serial baseband signal hku nna shinggyin la nna RF front-end module de sa dat ai.

.

5. Filtering galaw ngut ai hpang, signal hpe power amplifier de amplification galaw na matu sa dat nna, dai hpang antenna de transmission de sa dat ai.

 

RFID hti ai wa a bungli galaw ai lam gaw, tag backscatter a data shiga ni hpe hkam la na matu:

. Mahtai langai ra ai shaloi, mahtai hte seng ai shiga ni hpe antenna hku nna backscattered hku nna lai wa ai. RF front-end module de sa dat ai.

2. RF front-end module gaw, hkap la ai signal hpe band-pass filter de sa ya ai. Filter galaw ngut ai hpang, carrier signal hpe baseband signal de bai gram lajang nna, npu na-}naise amplifier hku nna, lawu de down{5}}n galai shai ai lam, galai shai ai lam hte kaga daw ni hku nna shalai ya ai.

3. Data hpe PC kaw na baseband processing module de interface hku nna sa ya ai.