Kodi One{0}}bit Electronic Tag ndi chiyani?

Kodi One{0}}bit Electronic Tag ndi chiyani?

 

One-bit Electronic Tag

 

Voliyumu ya data ya -bit system ndi pang'ono. Pamene chizindikiro chamagetsi ndi imodzi-bit (1b) dongosolo, chizindikiro chamagetsi chili ndi zigawo ziwiri zokha: 1 ndi 0. Wowerenga / wolemba dongosololi akhoza kutulutsa zigawo ziwiri zokha, zomwe ndi "chidziwitso chamagetsi mu malo ogwirira ntchito owerenga / wolemba" ndi "palibe chizindikiro chamagetsi m'dera la ntchito yowerenga / wolemba." One{7}bit electronic tag ndiye tagi yakale kwambiri yogwiritsidwa ntchito pamalonda, yomwe idawonekera koyamba m'ma 1960. Amagwiritsidwa ntchito makamaka mu Electronic Article Surveillance (EAS) m'masitolo. Wowerenga / wolemba dongosololi nthawi zambiri amayikidwa pakhomo la sitolo, ndipo chizindikiro chamagetsi chimamangiriridwa ku malonda. Zogulitsa zikadutsa pakhomo la sitolo, makina amalira.

 

One-bit electronic tag safuna chip ndipo imatha kugwira ntchito pogwiritsa ntchito njira zosiyanasiyana monga ma radio frequency (RF), microwave, frequency division, smart type, electromagnetic, ndi acousto-maginito njira. Mfundo yogwirira ntchito ya-bit electronic tag ikufotokozedwa pansipa, kutengera njira ya RF monga chitsanzo.

 

Mfundo Yogwira Ntchito ya Njira Yamafupipafupi ya Radio

 

Njira yogwirira ntchito ya RF imakhala ndi magawo atatu: owerenga / wolemba (chowunikira), chizindikiro chamagetsi, ndi choyimitsa. Tagi yamagetsi imagwiritsa ntchito L-C oscillating circuit kuti igwire ntchito, ndipo dera lozungulira limagwiritsa ntchito ma frequency a resonant fR. The RF working system reader/writer (detector) imatulutsa maginito osinthasintha ndi ma frequency fG. Pamene ma frequency a alternating magnetic field fG ali ofanana ndi ma frequency a resonant fR a tag yamagetsi, dera lozungulira la tag yamagetsi limapanga resonance. Pa nthawi yomweyo, panopa mu dera oscillating amatsutsana ndi kunja alternating maginito, kumabweretsa kuchepetsa matalikidwe a alternating maginito. Ngati wowerenga / wolemba (chowunikira) awona kuchepetsedwa kwa maginito osinthasintha, zidzawopsyeza. Chizindikiro chamagetsi chikagwiritsidwa ntchito, chimawonongedwa pogwiritsa ntchito "deactivator." Mfundo yogwiritsira ntchito njira ya RF ikuwonetsedwa mu Chithunzi 5-2.

 

 

(1) Wowerenga/Wolemba (Detector).Wowerenga / wolemba (chowunikira) nthawi zambiri amakhala ndi magawo awiri: chotumizira ndi cholandila. Mfundo yake yayikulu ndikugwiritsira ntchito mlongoti wotumizira kutulutsa mphamvu ya maginito yosinthira, kupanga malo ojambulira pakati pa tinyanga zotumizira ndi kulandira, ndi kugwiritsa ntchito mlongoti wolandira kulandira mphamvu ya maginito iyi mkati mwa malo omwe amalandila. Dongosolo logwira ntchito la RF limagwiritsa ntchito mfundo ya electromagnetic wave resonance kufufuza ngati tag yamagetsi ilipo mumitundu ina. Ngati chizindikiro chamagetsi chikuwoneka m'derali, alamu imayambitsidwa nthawi yomweyo.

 

(2) Electronic Tag.Mkati mwa tag yamagetsi ndi L-C structured oscillating circuit, ndipo tag yamagetsi imayikidwa pa malonda mwanjira yapadera. Ma tag apakompyuta omwe ali pamsika amaphatikiza ma tag ofewa ndi ma tag olimba.

 

Chothimitsa chikhoza kupanga mphamvu ya maginito yokwanira, yomwe ingawononge chocheperako-filimu capacitor mu tagi yamagetsi, kupangitsa kuti L-C mkati mwa tagi yamagetsi izilephereke.

 

Zotsekera nthawi zambiri zimasinthidwa ndi zotsegula kapena ma decoder. Ma Unlockers ndi zida zomwe zimagwiritsidwa ntchito kuchotsa mwachangu ma tag osiyanasiyana. Ma decoder ndi zida zomwe zimalepheretsa ma tag ofewa. Ma decoder omwe -osalumikizana nawo omwe amagwiritsidwa ntchito kwambiri pamsika masiku ano amatha kuzindikira tagi yofewa podutsa pamtunda wa masentimita 20 pamwamba pa decoder.

 

Mau oyamba a Electronic Article Surveillance System (EAS) System

 

Masiku ano, kugwiritsa ntchito kachitidwe ka Electronic Article Surveillance (EAS) pamabizinesi ogulitsa kukuchulukirachulukira. Ndi mankhwala oletsa kuba-wa pakompyuta amene amachepetsa kuba kwa zinthu panthawi imene{2}}akugulitsa mashelufu, motero amachulukitsa phindu la malonda, ndipo ndi imodzi mwa njira zachitetezo zotsatiridwa ndi makampani akuluakulu-akuluakulu apano. M'malo mwake, dongosolo la EAS ndi njira yosavuta yozindikiritsa ma radio frequency. Popeza ili ndi zigawo ziwiri zokha, imatha kuwonetsa kupezeka kapena kusapezeka kwa malonda, osati zomwe malondawo ali. Masitepe a EAS system kuzindikira kuba ndi awa.

 

(1) Zoletsa{1}}zoletsa kuba zimalumikizidwa ndi malonda.

(2) Zowunikira zimayikidwa panjira yotulukira sitolo kapena kanjira ka cashier.

(3) Pambuyo polipira, malondawo amadutsa pa decoder kuti atseke tagi kapena agwiritse ntchito-locker kuchotsa tagiyo.

(4) Pamene malonda osalipidwa (ndi chizindikiro chophatikizidwa) akudutsa potuluka, chojambulira pakhomo chimazindikira chizindikirocho ndikutulutsa alamu, kuletsa malonda kuchoka.

 

Ma tag apakompyuta amagawidwa kukhala ma tag ofewa ndi ma tag olimba. Ma tag otsika amakhala ndi mtengo wotsika ndipo amamangiriridwa mwachindunji ku malonda "ovuta". Ma tag ofewa sangathe kugwiritsidwanso ntchito. Ma tag olimba amakhala ndi nthawi yokwera-okwera kuposa ma tag ofewa koma amatha kugwiritsidwanso ntchito. Ma tag olimba ayenera kukhala ndi chotchingira chapadera ndipo amagwiritsidwa ntchito kwambiri pazinthu zofewa, zolowera mosavuta monga zovala.

 

Ma decoder nthawi zambiri sakhala-zida zolumikizirana zokhala ndi kutalika kotsikitsitsa. Pamene wosunga ndalama ayang'ana kapena kunyamula zinthuzo, chizindikiro chamagetsi chikhoza kusindikizidwa popanda kukhudza malo ochotserako. Ngati malonda achoka m'sitolo popanda kusindikizidwa, chowunikiracho chidzayambitsa alamu, kukumbutsa wosunga ndalama, kasitomala, ndi ogwira ntchito zachitetezo kuti azisamalira nthawi yomweyo.

 

Dongosolo la Electronic Article Surveillance (EAS) silimapangitsa makasitomala kukhala omasuka ngati machitidwe owunikira komanso amagwiranso ntchito ngati cholepheretsa. Pali matekinoloje anayi akuluakulu mu EAS system: ma radio frequency, electromagnetic, microwave, ndi acousto-magnetic technologies. Nthawi zambiri, zopangidwa ndi ma elekitiromagineti ndi ma RF zimakhala zotsika mtengo, ndipo ma tag ake nthawi zambiri amatsatiridwa ndi malonda kapena zopakira, pomwe ma microwave ndi acousto-maginito tag ndi okwera mtengo.