EAS (Electronic Article Surveillance), inozivikanwawo seelectronic commodity theft prevention system, ndeimwe yematanho anoshandiswa zvakanyanya ekuchengetedza zvinhu muindasitiri hombe yekutengesa.EAS yakaunzwa muUnited States pakati pemakore ekuma1960, yakatanga kushandiswa muindasitiri yezvipfeko, yakawedzera nyika dzinopfuura makumi masere nematunhu pasirese, uye kunyorera kuzvitoro zvedhipatimendi, masupamaketi, maindasitiri emabhuku, kunyanya muzvitoro zvikuru (warehousing). ) zvikumbiro.EAS system ine zvikamu zvitatu: Sensor, Deactivator, Electronic Label uye Tag.Zvinyorwa zvemagetsi zvakakamurwa kuva mavara akapfava uye akaomarara, mavara akapfava ane mutengo wakaderera, akabatanidzwa zvakananga kune zvimwe "zvakaoma" zvinhu, zvinyoro zvinyoro hazvigone kushandiswazve;mavara akaomarara ane mutengo wenguva imwe chete, asi anogona kushandiswa zvakare.Mapepa akaomarara anofanirwa kuve akashongedzerwa neakakosha misungo yezvipikiri kune zvinyoro, zvinopinda zvinhu.Decoder kazhinji midziyo isingabatanidzwe ine imwe decoding urefu.Kana iyo cashier inonyoresa kana kubhegi, iyo yemagetsi label inogona kudhindwa pasina kubata nenzvimbo ye demagnetization.Kune zvakare michina inogadzira decoder uye laser barcode scanner pamwe chete kuti ipedze kuunganidzwa kwezvinhu uye decoding kamwechete kufambisa basa recashier.Iyi nzira inofanirwa kushandira pamwe neye laser barcode mutengesi kuti abvise kupindirana pakati pezviviri uye kugadzirisa decoding senitivity.Undecoded zvinhu zvinotorwa kubva kune mall, uye alarm mushure meiyo detector mudziyo (kunyanya musuwo) inokonzeresa alarm, kuitira kuyeuchidza cashier, vatengi nevashandi vekuchengetedza mall kuti vabate navo nenguva.
Panyaya yekuti EAS system inoona mutakuri wechiratidzo, kune matanhatu kana manomwe masisitimu akasiyana ane masimboti akasiyana.Nekuda kwehunhu hwakasiyana hwemutakuri wechiratidzo chekuona, kuita kwehurongwa zvakare kwakasiyana.Parizvino, nhanhatu dzeEAS masisitimu abuda ndeye electromagnetic wave system, microwave system, radio / radio frequency system, frequency division system, self-alarm intelligent system, uye acoustic magnetic systems.Electromagnetic wave, microwave, radio / RF masisitimu yakaonekwa kare, asi yakaganhurwa nemusimboti wavo, hapana kuvandudzwa kukuru mukuita.Semuyenzaniso, iyo microwave system kunyangwe yakafara yekudzivirira kubuda, nyore uye inochinjika kuisirwa (semuenzaniso yakavanzika pasi pekapeti kana kurembera padenga), asi iri panjodzi yemvura yakaita sekudzivirira kwevanhu, yakabuda zvishoma nezvishoma kubva pamusika weEAS.Iyo frequency yekugovera sisitimu ingori yakaoma label, inonyanya kushandiswa kudzivirira zvipfeko, haigone kushandisa kune supermarket;sezvo iyo alarm intelligent system inonyanya kushandiswa kune zvakakosha senge premium fashoni, dehwe, fur jasi, nezvimwe;acoustic magnetic system ndiyo budiriro huru mumagetsi anti-kuba tekinoroji, yakavandudza iyo yemagetsi kuba system kune vatengesi vazhinji kubva payakatangwa muna 1989.
Maitiro ekuongorora maratidziro eEAS system anosanganisira kucherechedzwa kwehurongwa, system yenhema chirevo, anti-zvakatipoteredza kupindira kugona, dhigirii resimbi kudzivirira, upamhi hwekudzivirira, rudzi rwezvinhu zvekudzivirira, kuita / saizi yeanopokana-kuba mavara, demagnetization michina, nezvimwe.

(1) Test rate:
Detection rate inoreva huwandu hwemaalarm kana nhamba yeyuniti yemavara akakodzera ichipfuura nenzvimbo dzakasiyana munzvimbo yekuona nenzira dzakasiyana.
Nekuda kwekumisikidzwa kwemamwe masisitimu, iyo pfungwa yekuona chiyero inofanirwa kuve yakavakirwa paavhareji yekuona chiyero munzira dzese.Panyaya yemisimboti mitatu inonyanya kushandiswa pamusika, chiyero chekuonekwa kweacoustic magineti masisitimu ndicho chepamusoro, chinowanzopfuura 95%;radio / RF masisitimu ari pakati pe60-80%, uye mafungu emagetsi anowanzo ari pakati pe50 ne70%.Iyo sisitimu ine mwero wakaderera wekuona ingangove ine chiyero chekudonha kana chigadzirwa chaburitswa, saka chiyero chekuonekwa ndicho chimwe chezviratidziro zvinonyanya kuita kuongorora kunaka kweiyo anti-kuba system.

(2) System Kukanganisa:
Alarm yemanyepo (System false alarm) zvinoreva alarm iyo iyo isiri-kuba label inokonzeresa system.Kana chinhu chisina kunyorwa chikakonzera alarm, zvinounza matambudziko kune vashandi kuti vazvitonge nekuzvibata, uye zvinotokonzera kusawirirana pakati pevatengi nezvitoro.Nekuda kwekumisikidzwa kwemisimboti, ikozvino yakajairwa EAS masisitimu haigone kusabvisa zvachose alarm yenhema, asi pachava nekusiyana mukuita, kiyi yekusarudza system ndeyekuona nhema alarm rate.

(3) Kukwanisa kuramba kukanganiswa kwezvakatipoteredza
Kana iyo midziyo ichikanganiswa (kunyanya nemagetsi uye ruzha rwakatenderedza), iyo sisitimu inotumira chiratidzo chealarm kana pasina munhu anopfuura kana pasina yakakonzeresa alarm chinhu chinopfuura, chiitiko chinonzi nhema report kana self-alarm.
Radio / RF system inotarisana nekukanganisa kwezvakatipoteredza, kazhinji kuzviimba, saka mamwe masisitimu anoisa infrared zvishandiso, zvakaenzana nekuwedzera switch yemagetsi, chete kana vashandi kuburikidza nehurongwa, vavhara infrared, system yakatanga kushanda, hapana anopfuura. , hurongwa huri mumamiriro ekumira.Kunyangwe izvi zvinogadzirisa kureurura kana pasina munhu anopfuura, asi hazvigone kugadzirisa mamiriro ekureurura kana mumwe munhu apfuura.
Electromagnetic wave system zvakare iri panjodzi yekukanganiswa kwezvakatipoteredza, kunyanya iyo magineti midhiya uye kukanganiswa kwemagetsi emagetsi, zvichikanganisa mashandiro ehurongwa.
Iyo acoustic magineti system inotora yakasarudzika resonance chinhambwe uye ichishandira pamwe nehungwaru tekinoroji, iyo sisitimu inodzorwa nemicrocomputer uye software kuti ione otomatiki ruzha rwemukati, saka inogona kunyatso kuenderana nenharaunda uye kuve neyakagwinya anti-zvakatipoteredza kupindira.

(4) Chiyero chesimbi inodzivirira
Midziyo yakawanda muzvitoro zvikuru nemasupamaketi inotakura zvinhu zvesimbi, zvakadai sezvokudya, fodya, zvizorwa, zvinodhaka, nezvimwewo, uye zvigadzirwa zvavo zvesimbi, zvakadai semabhatiri, maCD/VCD marata, zvokugadzira bvudzi, maturusi ehardware, nezvimwewo;uye ngoro dzekutengera nematengu ekutenga anopihwa nezvitoro.Izvo zvinokonzerwa nesimbi-ine zvinhu paEAS system kunyanya ndeyekudzivirira kweiyo induction label, kuitira kuti iyo yekuona mudziyo weiyo system haigone kuona iyo inoshanda label kuvapo kana kuti iyo yekuona senitivity yakaderedzwa zvakanyanya, inotungamira kune system haina. buritsa alarm.
Iyo inonyanya kukanganiswa nesimbi kudzivirira iredhiyo / RF RF system, inogona kunge iri imwe yemipimo mikuru yeredhiyo / RF kuita mukushandisa chaiko.Iyo Electromagnetic wave system ichakanganiswawo nezvinhu zvesimbi.Kana iyo simbi hombe ichipinda munzvimbo yekuona ye electromagnetic wave system, iyo system ichaita se "mira" chiitiko.Kana simbi yekutenga ngoro uye bhasiketi rekutenga zvichipfuura, kunyangwe zvinhu zvirimo zvichange zvine mavara akakodzera, hazvibudise alarm nekuda kwekudzivirira.Pamusoro pezvigadzirwa zvesimbi zvakachena zvakaita sepoto yesimbi, iyo acoustic magineti system ichakanganisika, uye zvimwe zvinhu zvesimbi / simbi foil, simbi yekutenga ngoro / bhasiketi rekutenga uye zvimwe zvakajairika zvinhu zvesupermarket zvinogona kushanda zvakajairwa.