Kodi EAS ndi chiyani?Kodi chimateteza bwanji chitetezo?Mukatumiza m'misika yayikulu, kodi mudakumanapo ndi chitseko cholowera pakhomo?

Mu wikipedia, akuti Electronic article surveillance ndi njira yaukadaulo yopewera kuba m'masitolo ogulitsa, kubedwa kwa mabuku m'ma library kapena kuchotsa katundu m'nyumba zamaofesi.Ma tag apadera amayikidwa ku malonda kapena mabuku.Ma tag awa amachotsedwa kapena kutsekedwa ndi alembi pamene chinthucho chagulidwa bwino kapena kufufuzidwa.Potuluka m'sitolo, makina ozindikira amalira alamu kapena amachenjeza ogwira ntchito akamva ma tag akugwira ntchito.Masitolo ena alinso ndi njira zodziwira pakhomo la zimbudzi zomwe zimamveka alamu ngati wina ayesa kutenga katundu wosalipidwa kupita nawo kuchimbudzi.Pazinthu zamtengo wapatali zomwe ziyenera kugwiritsidwa ntchito ndi ogula, ma alamu amawaya otchedwa spider wrap atha kugwiritsidwa ntchito m'malo mwa ma tags.Pali zambiri zodziwitsira za EAS, ngati mukufuna, google.

Pali mitundu iwiri yomwe imagwiritsidwa ntchito kwambiri ya EAS - Radio Frequency (RF) ndi Acousto magnetic (AM), ndipo kusiyana pakati pawo ndi mafupipafupi omwe amagwira ntchito.Ma frequency awa amayesedwa mu hertz.

Makina a Magnetic a Acousto amagwira ntchito pa 58 KHz, kutanthauza kuti chizindikiro chimatumizidwa mogunda kapena kuphulika pakati pa 50 ndi 90 pa sekondi pomwe Radio Frequency kapena RF imagwira ntchito pa 8.2 MHz.

Mtundu uliwonse wa EAS uli ndi zopindulitsa, zomwe zimapangitsa kuti machitidwe ena akhale oyenera kwa ogulitsa enieni kuposa ena.

EAS ndi njira yabwino kwambiri yotetezera malonda kuti asabedwe.Kiyi yosankha njira yoyenera yogulitsira malonda anu imaphatikizapo kuganizira mtundu wa zinthu zomwe zimagulitsidwa, mtengo wake, mawonekedwe anjira yolowera ndi zina monga kukwezera mtsogolo ku RFID.