aam taur par dendaari lekhon ke karmiyon dvaara gban rokane ke liye, durupayog ke khilaaf vividh jaanch maujood hain. kartavyon ka pruthakkaran ek aam niyantran hai. lagbhag sabhi companiyon mein check ke sansaadhan aur mudran ke liye ek junior karmachaari aur check ke punareekshan aur us par hastaakshar karne ke liye ek varishth karmachaari hota hai. aksar, lekhaankan software pratyek karmachaari ko keval unhein saunpe gaye kaarya ko nishpaadit karne tak hi seemit karte hain, taaki aisa koi jriya maujood na ho, jisse koi karmachaari - niyantrak bhi - akele koi bhugataan kar paae.
ek safal pilot ke baad, aavaas evam vikaas board (HDB) Singapore ne 2006 mein kaagaj season parking ticket (SPT) ko pratisthaapit karte hue RFID ko laagoo karne ke liye do nividaaon ko jaari kiya. safal nividaakaaron ne March 2007 ke baad se SPT dhaarakon ko RFID taig vitrit kiya.[14] viytanaam mein, futek ke paas is desh mein kai bilding ke liye svachaalit jaanch ticket pranaali laagoo hai.
paanv ki daud mein, dhaavak nishkriya taig pahanate hain jo track ke donon chhoron ya track ke aar-paar bichhe Matt par rakhe enteena dvaara padha jaata hai. nyoon ya uchch freekveinsi antim peedhi taig ke bajaay UHF aadhaarit taig, vishesh roop se design kiye gaye entena ke dvaara sateek reeding pradaan karte hain. rash truti, laip kaaunt trutiyaan aur durghatanaaon se bacha ja sakta hai choonki bina ek batch mod mein rahe koi bhi kabhi bhi shuroo aur khatm kar sakta hai.
↑ Heckewelder, John Gottlieb Ernestus; Reichel, William Cornelius (June 1971) [1876] (PDF), History, manners, and customs of the Indian nations who once inhabited Pennsylvania and the neighbouring states, The Historical society of Pennsylvania, pa॰ 149, aai॰aऍsa॰abee॰aऍna॰ 978-0405028533, http://books.google.com/books?id=qPCuo4LkrIwC&printsec=frontcover, abhigman tithi: 2009-03-22

"sviching gati" yeh bataati hai ki ek inavartar prati sekand kitni baar troo se faals aur vaapas mein badal sakta hai ("laujikl naheen" prakriya ki ek electronic prastuti). tej laujik kam samay mein adhik kaarya ko poora kar sakte hain. digital laujik pehli baar tab upayogi ban gaye jab svichn gati pachaas hartj se oopar ho gayi, kyonki vah yaantrik kailakuletar ka sanchaalan kar rahe manushyon ke ek dal se tej thi. aadhunik electronic digital laujik niyamit roop se paanch geegaahartj (5 × 109 hartj) par parivrtit hote hain aur kuchh prayogashaala pranaali ek teraahartj (1 × 1012 hartj) se adhik par parivrtit hoti hai.


1945 mein lion theremin ne soviyt sangh ke liye ek jaasoosi upakaran ka aavishkaar kiya jo shravya jaankaari ke saath ghatna radio tarangon ko pun: sanchaarit karta tha. dhvani tarangein ek daayafraam ko hilaati thi jo rejonetar ke aakaar ko thoda badal deti thi, jo pratibinbit radio aavrutti ko modyulet kar deti thi. yadyapi yeh upakaran ek gupt shravya upakaran tha, na ki ek pehchaan taig, ise RFID praudyogiki ka ek poorvavarti maana jaata hai, kyonki yeh bhi vaise hi nishkriya tha, jo ek baahya srot se vidyutachumbakeeya tarangon dvaara shaktishaali aur sakriya ho jaata tha.[1]

poore Europe mein aur vishesh roop se peris mein (pranaali RATP dvaara 1995 mein shuroo ki gayi), lion, bordo, grenobal, nainsi aur maarsile France mein, poore purtagaali raajamaarg vyavastha mein aur kai purtagaali saarvajanik car park mein, Milan, turin, Italy mein nepals aur floreins aur Belgium mein brasels, kailipso antararaashtreeya maanak ke anuroop RFID paas ka saarvajanik parivhan pranaali ke liye upayog kiya jaata hai. unka upayog ab Canada (mauntriyl), maiksiko, isaraail, Columbia mein bogota aur parera, naarve mein stavaangar, laksamabarg, aadi mein bhi kiya jaata hai.
New York shahar mahanagar parivhan praadhikran ne ek RFID pareekshan kiya jismein maastarakaard dvaara pepaas ka upayog kiya gaya. yeh pareekshan mukhya roop se IRT leksingatan evenyoo line par kiya gaya jismein anya laainon ke kai vyast station bhi shaamil the. yeh pareekshan 31 May 2009 ko samaapt hua, lekin pepaas ke upayog ke vikalp ko vyaapak paimaane par baad ki taareekh mein pun: shuroo kiya ja sakta hai. MTA, New York shahar ke sabave aur bason par kiraaya bhugataan ke liye smaartalink (PATH dvaara shuroo) ko sveekaar karne aur antat: metrokaard ke ek pratisthaapan ke roop mein chalaane ki sambhaavana ka adhyayan kar raha hai.

sanbhaar-tantr aur parivhan, RFID praudyogiki ke kaaryaanvayan ke pramukh kshetr hain. udaaharan ke liye, yaard prabandhan, shiping aur maal dhulaai aur vitran kendra, kuchh aisi jagahein hain RFID traiking praudyogiki ka istemaal kiya jaata hai. duniya bhar ki parivhan companiyaan, vyaapaar moolya aur kaaryakushalata par RFID praudyogiki ke prabhaav ke kaaran isko tavajjo deti hain.
kuchh pranaaliyon mein yadi digital deta ka ek bhaag lupt ho jaae ya galat tareeke se vyavahrut hon, to sambandhit deta ke vishaal khandon ka arth poori tarah se badal sakta hai. kyonki kleef ifekt ke kaaran, upayogakartaaon ke liye bataana mushkil hai ki koi vishisht system vifalta ke kagaar par sahi tha ya fir vah asafal hone se pehle bahut adhik shor ko sahan kar sakta hai ya naheen.
1612 mein jemsataaun ke avasthaapan ke chhah saal baad John raalf pehle adhivaasi hain jinhonne tambaakoo ki ek nakadi fasal ke roop mein safalataapoorvak kheti ki. tambaakoo ki maang mein teji se vruddhi hui, use "bhoora sona" kaha gaya, kyonki usane sone ke abhiyaan mein vifal varjeeniya ko share company mein punarjeevit kar diya.[21] puraani duniya ki maangon ko poora karne ke liye tambaakoo ki paidaavaar lagaataar ki gayi jiske parinaamasvaroop jameen ki urvara shakti sheegra hi kam ho gayi. isne pashchim ko ek agyaat mahaadveep mein basane ke liye prerak ka kaarya kiya aur isi tarah tambaakoo utpaadan ka ek vistaar hua.[22] bekan vidroh ke pehle tak anubandhit daasata hi praathamik shram bal ka aadhaar thi jiske kaaran das pratha par dhyaan kendrit hua.[23] yeh pravrutti ameriki kraanti ke baad kam hui aur daasapratha laabhaheen maani gayi. haalaanki yeh pratha 1794 mein punarjeevit ho gayi jab kapaas ki charkhi ka aavishkaar hua.[24][page needed]

October 2004 mein, FDA ne maanav mein pratyaaropit kiye ja sakane vaale amareeka ke pehle RFID chip ko manjoori di. vereechip corporation ke 134 kHz RFID chips mein vyaktigat chikitsa jaankaari rakhi ja sakti hai aur company ke anusaar, chikitsa upachaar mein trutiyon ke maamale mein jeevan raksha ho sakti hai aur choton ko seemit kiya ja sakta hai. FDA anumodan ko niveshakon ke saath ek sammelan ke dauraan bataaya gaya. anumodan ke sheegra hi baad, lekhak aur RFID-virodhi kaaryakarta Cathrine albrekt aur lij maikintaayar ne FDA ki or se ek chetaavani patra ki khoj ki jismein likha tha gambhir health risks associated with the VeriChip. FDA ke mutaabik, inmein shaamil hain "pratikool ootak pratikriya", "pratyaaropit traansapondar ka sthaan parivartan", "pratyaaropit traansapondar ki vifalta","bijli ke khatre" aur "maignetik rejoneins imejing [MRI] asangati."
saarvajanik pustakaalaya ka dach sangh (Vereniging van Openbare' Bibliotheken) ek anyonyakriya 'sandarbh pustakaalaya' ki avadhaarana par kaam kar raha hai, jahaan lenevaalon ko ek reedar/hedafon set milta hai, jo unhein pustakaalaya ke vaanchhit anubhaag ki or le jaata hai (GPS ke vipreet, traayanguleshan tareeke ka upayog karke) aur jiska istamaal ve alamaariyon par rakhi pustakon se vaanchhit star ke vivran ke saath soochana padhne ke liye kar sakte hain (udaaharan ke liye, jor se padha gaya bhaag) jo pustak ke taig se hi aata hai ya kaheen aur sthit detaabes se aur lenevaale ki vareeyataaon ke aadhaar par vikalp ka sujhaav praapt karke, is prakaar pustakaalaya ka aur adhik vyaktigat sanskaran banaaya ja sakta hai. isse ve pustakaalaya ke un bhaagon mein bhi jaayeinge jahaan anyatha ve yaatra naheen karte. lenevaale, is pranaali ka upayog anubhavon ke aadaan-pradaan ke liye bhi kar sakte hain (jaise pustak greding mein). ise pehle se hi bachchon dvaara mijnstempel.nl mein aabhaasi daayare mein kiya ja raha hai, lekin ise bhautik roop mein bhi kiya ja sakta hai. lenevaale, vaapasi mej par kitaab ko gred de sakte hain.
cigarette ke maamale mein French "chhota sigaar" dhoomrapaan ka ek utpaad hai jise patali tambaakoo ki pattiyon ko ant mein kaatkar aur tambaakoo ka punargathan kar theek se taiyaar kiya jaata hai, aksar ise anya yogaj ke saath sanyukt kar ek velanaakaar kaagaj mein lapet diya jaata hai.[8] cigarette aamtaur par sulagaakar usaka dhuaan ek selooloj eseetet filtar ke maadhyam se munh aur fefadon mein kheencha jaata hai. cigarette peena tambaakoo-sevan ka sabse aam tareeka hai.[krupaya uddharan jodein]
passport ko adhik surakshit banaane ke prayaas mein kai deshon ne passport mein RFID laagoo kiya hai. baharahaal, Britain ke chips par enkripshan ko 48 ghante ke andar tod diya gaya tha.[66] us ghatna ke baad se aur adhik prayaas ne shodhakartaaon ko, jab passport ko uske maalik ke paas bheja ja raha ho us vakt passport deta ko klon karne ki anumati di. jahaan ek aparaadhi ko chupake se lifaafe ko kholana aur fir band karne ki jaroorat thi, ab yeh pata lage bina kiya ja sakta hai, jisse passport pranaali mein kuchh asuraksha badh gayi hai.[67]
pustakaalayon mein RFID ko lekar jis chinta ka prasaar hua hai vah gopaneeyata ka mudda hai. choonki RFID traansameetar aur reedar ke anusaar, RFID taig ko 350 feet ya 100 meter se padha aur scan kiya ja sakta hai (udaaharan ke smart lebal RFID) aur choonki RFID, freekveinsi ke vargeekaran ka istemaal karta hai (donon, taig ke prakaar par nirbhar karta hai), chinta ka vishay yeh hai ki kya samvedansheel jaankaari ko ek anichhuk srot se ekatr kiya ja sakta hai. haalaanki, pustakaalaya ke RFID taig mein koi sanrakshak jaankaari shaamil naheen hoti,[33] aur adhikaansh pustakaalayon mein prayukt taig jis freekveinsi ka prayog karte hain vah keval lagbhag das foot se pathaneeya hai.[28] saath hi, pustakaalayon ko hamesha yeh record rakhana hai ki kisne kab kya liya hai, to us maayane mein koi nai baat naheen hai. haalaanki, kai pustakaalaya in record ko saamagri ke ek baar vaapas aa jaane ke baad nasht kar dete hain. RFID, paathakon ki gopaneeyata ke is sammaan ko jatil ya samaapt kar degi. iske alaava, ek anya gair-pustakaalaya agency sambhaavit roop se pustakaalaya vyavasthaapak ki jaankaari ya sahamati ke bina pustakaalaya se nikalne vaale pratyek vyakti ke RFID taig ko record kar sakti hai. ek aasaan vikalp hai ki pustak ko ek code sanchaarit karne diya jaae jiska mahatva sirf laaibreri ke daataabes ke saath sanyojan ke roop mein ho. ek aur kadam yeh hai ki kitaab ko jab bhi lautaaya jaae to use ek naya code diya jaae. aur agar bhavishya mein reedar sarvavyaapak ho jaae to (aur sanbhavat: jude hue), chori gayi kitaabon ko laaibreri ke baahar bhi pata lagaaya ja sakta hai. taig ko hataane ko mushkil banaaya ja sakta hai agar taig itna chhota ho ki use ek (yaadruchhik) prushth ke andar adrushya roop se lagaaya ja sake, sanbhavat: prakaashak dvaara vahaan daal diya jaae.

iski tulana mein atulyakaalik system ka design bahut kathin hota hai kyonki sabhi sambhav samay mein bhi sambhaavit state ka vichaar kiya jaana chaahiye. nyoonatam aur adhiktam samay ke table ke nirmaan ke sabse saamaanya vidhi ke anusaar ismein saare state vidyamaan ho aur vaise state ke mineemaaij ke liye sarkit ko samaayojit kiya jaata hai aur jo iske sabhi hisson ke susangat state mein samay-samay par jaane ke liye sarkit ko baadhya kare. (ise "self-reesinkronaaijeshan" kaha jaata hai.) aise saavdhaan design ke bina sanyogavash atulyakaalik laujik ka utpaadan karna aasaan hai jo "asthir" hai aur vaastavik electronics hai jismein apratyaashit parinaam hote hain kyonki electronic upakaranon ke moolyon mein chhote badlaavon ki vajah se sanchit vilamb hota hai. kuchh sarkit (jaise sinkronaaijr-flip flop, svich debaaunsar aur jo baahari anasinkronaaijd ko atulyakaalik laujik sarkit mein pravesh karne ki anumati deta hai) sahaj roop se apne design mein antarnihit atulyakaalik rahe hain aur is tarah hi vishleshan kiya jaana chaahiye.
keemat ke ghatne se RFID praudyogiki teji se prachalit ho rahi hai. January 2003 mein jilet ne ghoshana ki ki usane eliyn technology ko 500 million taig ka aadesh diya hai. jilet ke V.P. dik kaantavel, jo ab Cisco ke karmachaari hain, ka kehna hai ki company ne har taig ke liye "das seint ke andar" bhugataan kiya hai. Japani HIBIKI pahal, is keemat ko kam karke 5 yen (4 yooroseint) par laana chaahata hai. aur January 2009 mein envego ne 5.9 seint ke taig ki ghoshana ki.[krupaya uddharan jodein]
ek baar input deta ko sahi maanane ke baad, khud dijaain ko abhi bhi shuddhata ke liye satyaapit kiya jaana chaahiye. kuchh upakaran pravaah, pehle ek dijaain ke utpaadan dvaara design ki pushti karte hain aur fir upakaran pravaah ke liye sangat input deta ke utpaadan ke liye design ki skaining karte hain. yadi scan kiya hua deta, input deta ke saath mel khaata hai, to upakaran pravaah ne shaayad koi trutiyaan pesh naheen ki.
sanvedya jagat enalaug ke hain aur is jagat se sanket enalaug maatraaen hain. udaaharan ke liye prakaash, taapamaan, dhvani, vidyut chaalakata, vidyut aur chunbakeeya aadhaar enaalaug hain. sabse upayogi digital system nirantar enaalaug sanketon se digital sanketon ko alag karne ke liye badalna hoga. yeh parimaaneekaran trutiyon ka kaaran banta hai.
pitsabarg mein seint kleyar aspataal ke ek RFID aur baarakod aadhaarit bedasaaid dava satyaapan pranaali laagoo ki hai jo dava trutiyon ko kam kar ke rogi suraksha mein sudhaar karti hai. IV pampon ke maadhyam se di gayi davaaon sahit koi bhi dava dene se pehle, narsein rogi ke ID aur davaaon ki jaanch ke liye ek portebal RFID reedar aur baarakod skainar se yukt ek PDA ka prayog karti hain.[60]
pitsabarg mein seint kleyar aspataal ke ek RFID aur baarakod aadhaarit bedasaaid dava satyaapan pranaali laagoo ki hai jo dava trutiyon ko kam kar ke rogi suraksha mein sudhaar karti hai. IV pampon ke maadhyam se di gayi davaaon sahit koi bhi dava dene se pehle, narsein rogi ke ID aur davaaon ki jaanch ke liye ek portebal RFID reedar aur baarakod skainar se yukt ek PDA ka prayog karti hain.[60]

naaji Germany mein tambaakoo virodhi aandolan dviteeya vishv yuddh ke dauraan shatru rekha ke paar naheen pahunch paaya, jiske kaaran dhoomrapaan virodhi samoohon ne jaldi hi apni lokapriyta kho di. dviteeya vishv yuddh ke ant tak ameriki cigarette nirmaata ne jaldi hi Germany ke kaala baajaar mein fir se pravesh kiya. tambaakoo ki avaidh taskari ka prachalan ho gaya[33] aur dhoomrapaan virodhi abhiyaan ke naaji neta khaamosh ho gaye.[34] maarshal yojana ke ek hisse ke roop mein sanyukt raajya America ne Germany ko 1948 mein 24,000 tan aur 1949 mein 69,000 tan tambaakoo muft mein bhej diya.[33] yuddh ke baad ke Germany mein prati vyakti vaarshik cigarette ki khapat 1950 mein 460 se badhkar 1963 mein 1,523 ho gayi.[4] 1900 ke dashak ke ant tak Germany mein dhoomrapaan virodhi abhiyaan 1939-41 mein naaji yug ke ant mein apni prabhaavasheelata badha paane mein asafal raha aur jarman tambaakoo svaasthya anusandhaan ki vyaakhya raabart N. prauktar dvaara ek "mandit" ke roop mein ki gayi.[4]
aam taur par teen prakaar ke RFID taig hote hain: sakriya RFID taig, jismein ek baitari hoti hai aur ye sanketon ko svatantr roop se sanchaarit kar sakte hain, nishkriya RFID taig, jismein baitari naheen hoti aur sanket sancharan prerit karne ke liye ek baahari srot ki jaroorat hoti hai aur baitari samarthit nishkriya (BAP) jise jaagane ke liye baahari srot ki aavashyakta hai lekin ismein mahatvapoorn uchch fauravard link kshamata hai jo atyadhik pathan seema pradaan karta hai.

digital bhangasheelata ko ek digital pranaali ke roopaankan dvaara majabooti ke liye kam kiya ja sakta hai. udaaharan ke liye ek pairiti bit ya anya truti prabandhan paddhati ko signal path mein daala ja sakta hai. yeh paddhati system ko, truti ka pata lagaane mein madad karti hai aur ya to trutiyon ko sahi karti hai ya fir kam se kam deta ki ek nai pratilipi ke liye poochhati hai. ek state machine mein state traanjishn laujik ka aprayukt state ko pakadne aur ek reeset anukram trigr ya anya niyamit truti vasooli ke liye design kiya ja sakta hai.


1995 se 1970 ke beech gareeb vikaasasheel deshon mein prati vyakti cigarette ki khapat mein 67 pratishat ki vruddhi hui hai, jabki usamein ameer viksit duniya mein 10 pratishat giraavat aayi hai. dhoomrapaan karne vaalon mein se assi pratishat ab kam viksit deshon mein rahate hain. 2030 tak vishv svaasthya sangathan (WHO) ki bhavishyavaani hai ki 10 million logon ki maut prativrsh dhoomrapaan se sambandhit beemaariyon se hogi jo duniya bhar mein maut ka ek sabse bada kaaran hoga, mahilaaon mein iski sabse badi vruddhi hogi. WHO ki bhavishyavaani hai ki 20 veen sadi mein dhoomrapaan se hui mauton ki daron mein 21 veen sadi mein das guna vruddhi hogi. ("Washington"(Washingtonian) patrika, December 2007).
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