Ib - ntsis Electronic Tag yog dab tsi?

Ib - ntsis Electronic Tag yog dab tsi?

 

Ib -ntsis Electronic Tag

 

Cov ntaub ntawv ntim ntawm ib qho -ntsis system yog ib me ntsis. Thaum lub cim hluav taws xob yog ib qho -ntsis (1b) system, lub cim hluav taws xob tsuas muaj ob lub xeev: 1 thiab 0. Tus nyeem ntawv / tus kws sau ntawv ntawm qhov system no tsuas tuaj yeem tso tawm ob lub xeev, uas yog "daim ntawv hluav taws xob nyob rau hauv cheeb tsam nyeem ntawv / sau ntawv ua haujlwm" thiab "tsis muaj hluav taws xob tag rau hauv qhov chaw nyeem ntawv / sau ntawv ua haujlwm." Ib qho -ntsis hluav taws xob tag yog cov khoom siv hluav taws xob thaum ntxov tshaj plaws, uas tau tshwm sim thawj zaug hauv xyoo 1960. Nws yog tsuas yog siv nyob rau hauv Electronic Article Surveillance (EAS) system hauv khw. Tus nyeem ntawv / sau ntawv ntawm qhov system no feem ntau muab tso rau ntawm lub khw nkag, thiab cov ntawv hluav taws xob txuas nrog rau cov khoom muag. Thaum cov khoom hla dhau ntawm lub khw nkag, lub kaw lus ceeb toom.

 

Ib qho - ntsis hluav taws xob tsis tas yuav muaj lub nti thiab tuaj yeem ua haujlwm siv ntau txoj hauv kev xws li xov tooj cua zaus (RF), microwave, zaus faib, hom ntse, electromagnetic, thiab acousto- txoj kev sib nqus. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm ib qho -ntsis hluav taws xob tag yog qhia hauv qab no, coj tus qauv RF ua piv txwv.

 

Txoj Cai Ua Haujlwm ntawm Txoj Kev Xov Tooj Cua

 

Lub tshuab ua haujlwm RF muaj peb ntu: tus nyeem ntawv / tus kws sau ntawv (kwv yees), lub cim hluav taws xob, thiab lub deactivator. Lub cim hluav taws xob siv L-C oscillating Circuit Court ua haujlwm, thiab lub oscillating circuit tunes zaus mus rau qee qhov resonant zaus fR. RF ua hauj lwm system nyeem ntawv / sau ntawv (kwv yees) emits ib alternating magnetic teb nrog ib tug tej zaus fG. Thaum qhov zaus ntawm qhov chaw sib nqus sib nqus fG yog tib yam li qhov zaus fR ntawm lub tshuab hluav taws xob, lub oscillating Circuit Court ntawm cov hluav taws xob tag generates resonance. Nyob rau tib lub sij hawm, tam sim no nyob rau hauv lub oscillating Circuit Court counteracts sab nraud alternating magnetic teb, ua rau ib tug txo nyob rau hauv lub amplitude ntawm alternating magnetic teb. Yog tias tus nyeem ntawv / tus kws sau ntawv (kwv yees) pom qhov txo qis hauv qhov sib nqus sib nqus, nws yuav ceeb toom. Tom qab siv hluav taws xob tag lawm, nws raug rhuav tshem siv "deactivator." Lub hauv paus ntsiab lus ua haujlwm ntawm RF txoj kev yog qhia hauv daim duab 5-2.

 

 

(1) Tus nyeem ntawv / sau ntawv (Ntawm).Ib tus nyeem ntawv / tus kws sau ntawv (tus ntsuas) feem ntau muaj ob ntu: lub tshuab xa hluav taws xob thiab lub receiver. Nws lub hauv paus ntsiab lus tseem ceeb yog siv cov kav hlau txais xov xa hluav taws xob kom tso tawm ib qho chaw sib nqus sib nqus, tsim qhov chaw scanning ntawm cov xaim thiab txais cov kav hlau txais xov, thiab siv cov kav hlau txais xov kom tau txais qhov chaw sib nqus sib nqus no hauv nws qhov tau txais ntau yam. Lub tshuab ua haujlwm RF siv lub hauv paus ntsiab lus ntawm electromagnetic yoj resonance los tshawb xyuas seb puas muaj cov cim hluav taws xob nyob hauv ib qho tshwj xeeb. Yog tias daim npav hluav taws xob tshwm sim hauv cheeb tsam no, lub tswb yuav tshwm sim tam sim ntawd.

 

(2) Electronic Tag.Sab hauv ntawm lub cim hluav taws xob yog L-C qauv oscillating Circuit Court, thiab cov khoom siv hluav taws xob tau teeb tsa ntawm cov khoom muag hauv txoj kev tshwj xeeb. Cov cim hluav taws xob tam sim no nyob rau hauv kev ua lag luam suav nrog cov ntawv muag muag thiab cov cim nyuaj.

 

Lub deactivator tuaj yeem tsim kom muaj qhov sib nqus txaus, uas tuaj yeem rhuav tshem cov nyias - zaj duab xis capacitor hauv hluav taws xob tag, ua rau L-C qauv hauv lub tshuab hluav taws xob ua tsis tiav.

 

Deactivators feem ntau hloov los ntawm cov unlockers lossis decoders. Unlockers yog cov cuab yeej siv los tshem tawm ntau yam cim nyuaj. Decoders yog cov khoom siv uas cuam tshuam cov cim npe muag. Cov tsis yog -cov decoders feem ntau siv nyob rau hauv kev ua lag luam niaj hnub no tuaj yeem txiav txim siab lub cim muag yooj yim los ntawm kev hla nws hauv 20 cm saum toj no lub tshuab txiav.

 

Introduction to Electronic Article Surveillance (EAS) System

 

Niaj hnub no, daim ntawv thov ntawm Electronic Article Surveillance (EAS) system nyob rau hauv cov khw muag khoom lag luam yog nce zuj zus. Nws yog cov khoom siv hluav taws xob tiv thaiv- tub sab nyiag khoom uas txo cov khoom lag luam tub sab thaum qhib- txee muag khoom, yog li ua kom cov nyiaj tau los ntawm kev muag khoom, thiab yog ib qho ntawm cov kev ntsuas kev nyab xeeb uas tau txais los ntawm kev lag luam loj loj tam sim no -. Qhov tseeb, EAS system yog ib qho yooj yim xov tooj cua zaus txheeb xyuas qhov system. Txij li nws tsuas muaj ob lub xeev xwb, nws tsuas tuaj yeem qhia tau tias muaj lossis tsis muaj cov khoom muag, tsis yog cov khoom muag. Cov kauj ruam rau EAS qhov kev tshawb nrhiav tub sab yog raws li hauv qab no.

 

(1) Cov ntawv tiv thaiv - tub sab nyiag yog txuas rau cov khoom muag.

(2) Cov cuab yeej raug teeb tsa ntawm lub khw tawm ntawm lub khw lossis cov neeg nqa nyiaj.

(3) Tom qab them nyiaj, cov khoom yuav dhau los ntawm tus txiav txim siab txiav txim siab kom tsis txhob siv lub cim lossis siv lub un-locker kom tshem tag.

(4) Thaum cov khoom tsis them nyiaj (nrog rau daim ntawv txuas) dhau los ntawm kev tawm, lub qhov rooj ntawm lub qhov rooj ntes cov cim thiab teeb tsa lub tswb, cuam tshuam cov khoom muag tawm.

 

Cov cim hluav taws xob tau muab faib ua cov cim muag muag thiab cov cim nyuaj. Cov ntawv muag muag muaj tus nqi qis dua thiab txuas ncaj qha rau "nyuaj" cov khoom muag. Cov ntawv muag muag tsis tuaj yeem rov siv dua. Cov ntawv tawv tawv muaj tus nqi siab dua - lub sij hawm tus nqi tshaj cov ntawv muag muag tab sis tuaj yeem rov siv dua. Cov cim npe tawv yuav tsum tau nruab nrog cov khoom tshwj xeeb detacher thiab feem ntau yog siv rau cov khoom muag muag, yooj yim nkag mus rau hauv cov khoom xws li khaub ncaws.

 

Cov decoders feem ntau tsis yog -cov khoom siv sib txuas nrog qhov siab ntawm kev txiav txim siab. Thaum tus neeg txais nyiaj tshev tawm lossis hnab ntim cov khoom, daim npav hluav taws xob tuaj yeem txiav txim siab yam tsis tau kov thaj tsam degaussing. Yog tias cov khoom lag luam tawm hauv lub khw yam tsis tau txiav txim siab, tus ntes yuav ua rau lub tswb ceeb toom, ceeb toom rau cov neeg siv nyiaj, cov neeg siv khoom, thiab cov neeg ua haujlwm ruaj ntseg hauv khw los daws nws tam sim ntawd.

 

Lub Electronic Article Surveillance (EAS) system tsis ua rau cov neeg siv khoom tsis xis nyob zoo li kev soj ntsuam cov kab ke thiab tseem ua rau muaj kev cuam tshuam. Muaj plaub lub ntsiab thev naus laus zis hauv EAS system: xov tooj cua zaus, electromagnetic, microwave, thiab acousto-magnetic technologies. Feem ntau, cov khoom siv hluav taws xob thiab RF yog pheej yig dua, thiab lawv cov cim npe feem ntau yog ua raws li cov khoom lag luam lossis ntim khoom, thaum microwave thiab acousto- cov cim npe sib nqus yog kim dua.