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Bentenane antarane telung sistem EAS, kepiye sistem EAS nyegah nyolong lan weker?

2020-06-19

Alat sing paling efektif kanggo pasar-pasar kanggo nyolong maling yaiku sistem weker anti-nyolong, yaiku sistem EAS (Elektronik Komoditas Elektronik) sing akeh digunakake. SanajanSistem EASbisa diganti. Nanging isih misuwur banget. IngSistem EASyaiku teknologi sing digunakake kanggo ngenali barang sing nembus pasar raya. Yen sistem nemokake produk sing ditindakake tanpa wewenang, bakal ngetokake weker. Ing pasar pasar saiki, biasane biasane telungSistem EASs.

 Sistem EAS

Frekuensi radioSistem EASyaiku sing paling akeh digunakakeSistem EASing Amerika Serikat saiki, lan label lan tandha-tandha uga dadi luwih cilik. Prinsip RFSistem EASbanget prasaja. Merek dagang biasane minangka sirkuit cilik utawa antena sing bisa digunakake sewenang-wenang. Ditentokake menyang produk lan tanggung jawab kanggo nampa frekuensi khusus sing dikirim dening antena nular (biasane ing sisih lawang). Antena sing bisa nampa (ing sisih liya lawang) nampa tanggepan saka tag kasebut. Panrima ngolah tanggapane tag lan bakal nyebabake alarm.

 

Titik paling dhasar kanggo ngetrapake frekuensi radio yaiku yaiku kabel aluminium spiral lan kertas sing macet ing label kasebut. Ing pungkasan antena yaiku dioda utawa resistor cilik sing ndadekake tag kasebut menehi sinyal radio kanggo nanggepi sinyal radio sing ditampa. Kanggo ngilangi tag kasebut, pulsa RF sing kuwat (luwih kuat tinimbang sing dipasang ing lawang) ngobong diode utawa perintang ing sistem kasebut. Tag sing diobong ora bakal ngetokake sinyal nalika nembus lawang, saengga lawang kasebut ora bakal muni.

 

ElektromagnetikSistem EASs are more common in Europe and are often used in retail chain stores, supermarkets, and libraries. In this technique, a sticky, metal-containing magnetic strip is stuck to the back of the product. This magnetic stripe will not be removed at the cash register, just use a special high magnetic field scanner to disable it. The advantage of the magnetic stripe of the electromagnetic Sistem EAS is its low cost. It is the ideal choice for libraries, where books will be lent out for a period of time before being returned.

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