RFID a rawt jat galu kaba wa ai lam

RFID a mying hkum hkra gaw Radio Frequency hpe chye ginhka ai lam re. Dai gaw wireless matut mahkai hpaji hte tinang hkrai chye na ai hpaji masa langai mi re. RFID system gaw RFID hpaji masa hpe madung tawn ai hardware jak langai rai nna, dai gaw non{2}}}}}}} n re ai lahkawng lang na data matut mahkai lam a matu wireless radio frequency hpe lang ai. Shi gaw wireless radio frequency hpe lang nna, recording media (electronic tags (sh) RF cards) hpe hti nna ka ai, dai hku nna, yaw shada ai lam ni hpe chye na lu na matu hte shiga ni hpe galai shai ai yaw shada lam hpe lu la ai. Tsaban 21 hta grau nna myit mada shara nga ai shiga hpaji langai hku nna masat da ai.

 

1935 ning hta, Sir Robert Watson Watt gaw, RFID a shawng nnan na npawt nhpang hku nna sawn la mai ai, radio hpe sawk sagawn ai lam hte, radar (radar) hpe hpan shalat wa ai. Ya na RFID hpaji masa gaw 1940 ning kaw nna 1950 ning du hkra pru wa nna, Mungkan Majan II hta shawng nnan lang lang ai. Ndai zawn re ai hpaji masa ni hpe hpyen hte jinghku ni hpe chye na lu na matu Allies hte Germany ni mung lang ma ai. Charles Walton gaw 1973 ning hta portable RFID transmitter hpe galaw nna, RFID lu ai wa tai wa sai. RFID a shawng na manu kaba ai majaw, shi a hpaga lam hpe grai pat shingdang kau ai. Hpaji hparat rawt jat wa ai hte maren, hardware manu ni yawm mat wa nna, 1980 ning hta she hpaga lam galaw hpang wa ai. Shaning law law matut nna rawt jat wa ai hpang, RFID hpe shayawm kau ai lam hpe sawk sagawn ai zawn re ai lam ni gaw, dai hpaji masa hpe matut nna gram lajang nga ai. Hardware gaw manu jahpu hpe grau shayawm ya ai. 2003 ning hta, Amerikan mungdan gaw shawng ningnan lang radio frequency hpe chye ginhka ai madang hpe ndau shabra wa sai, ya gaw, dai hte seng ai galaw shapraw ai manu ni grau yawm mat wa sai, application fields ni gaw loi loi hte jat wa nna, n-gun ja wa sai.

 

RFID a bungli galaw ai tara hpe

Shawng nnan, RFID system hkum tsup ai hta, laika hti ai wa, electronic tag, hte data hpe hparan ai ladat langai lawm ai hpe chye ra ai. Shi a bungli masa gaw, dai tag gaw laika hti ai wa a hkam sha ai shara de shang wa nna, laika hti ai wa gaw, tag a mawdaw gau ai circuit hku nna, kata na jahpan ni hpe sa dat na matu, radio wave energy a laksan frequency hpe shapraw ya ai. Ndai aten hta, laika hti ai wa gaw, jahpan ni hpe lawu de hkap la nna lachyum shapraw nna, dai hpe hkan sa ai lam galaw na matu application de sa ya ai.

 

RFID hpe power jaw ai ladat hte maren garan ginhka ai rai yang, active RFID, passive RFID, hte semi active RFID ngu nna garan mai ai.

1. Passive RFID

Ndai zawn re ai RFID ni hta, passive RFID gaw shawng nnan na hte kungkyang ai hkrang bung sumla ni nga ai, dai hpe jai lang ai lam mung grau dam lada ai. Shi hpe passive RFID system ngu tsun mai ai. Passive RFID hta power source n nga ai, shi gara hku nna power jaw na kun? Kaja wa nga yang, RFID hti ai ni kaw nna htawt sit ai microwave signal ni hpe hkap la nna, electromagnetic induction coil ni hku nna n-gun lu la ai hku nna, shi hkum shi kadun dawk n-gun jaw lu ai, dai hku nna shiga galai shai ai lam hpe ngut kre hkra galaw lu ai. Dai hta n-ga, shi a bungli n-gun gaw madung hku nna 125KHz, 13.53MHz, etc. hta rai nna, ndai zawn re ai Bus card, lahkawng ngu na- generation ID card, hte lusha seng kaw na lusha card hpe lang chye ga ai.

 

2. Active RFID

Active RFID hpe active RFID ngu tsun mai ai, dai gaw passive RFID hte shingdaw yang grai na hkra n ra sharawng ai. Raitim, anhte a shani shagu na sak hkrung lam hta, lam kaba ni hta nga ai electronic gumhpraw shinggyin la ai ladat (ETC) zawn re ai teng sha nga nga ai. Mying hta tsun da ai hte maren, active RFID gaw shinggan na n-gun n-gun ra ai hte RFID hti ai ni hpe signal ni hpe active hku sa ya ai. Shi a galu kaba ai lam gaw grai kaba ai, raitim shi hta grau galu ai transmission tsan ai shara ni hte transmission speed grau law ai, nkau mi gaw metre 100 daram du hkra du lu ai. Active RFID a frequency gaw madung hku nna 900MHz, 2.45GHz, 5.8GHz, etc.

 

3. Semi active RFID

Passive RFID hte active RFID lahkawng yan a akyu ara hte n kaja ai lam ni a majaw, passive RFID gaw kadun ai hku chye na ai tsan ai shara nga ai. Active RFID gaw aten galu chye na ai tsan ai shara nga ai raitim, shinggan na n-gun n-gun ra ai hte n-gun kaba ai. Gat lawk ra sharawng ai majaw, ndai semi{2}}active RFID system pru wa sai, dai gaw mobile power supply hte rau sa wa nna, yup ai masa hta law malawng nga ai. Dai gaw bungli n galaw ai sha, signal ni hpe n sa ya ai. Tag gaw low{5}} n-gun n law ai activator range de shang wa ai shaloi she activate galaw ai, dai majaw aten law law laman mung gram lajang mai ai.