A detector is arranged at the exit or cashier channel of the supermarket. The detector includes a transmitter and a receiver. When the transmitter sends out a signal at a specific frequency, the receiver will receive the signal, thus creating a monitoring area. When EAS tags that have not been processed by cashier pass through the detection area, interference will occur. When the receiver detects this interference, it will trigger an audio alarm.
There are two mainstream technologies adopted by EAS in the market: one is radio frequency technology and the other is acoustomagnetic technology. In the global market, electronic goods monitoring adopts radio frequency technology, accounting for about 52%, and electronic goods monitoring adopts acoustomagnetic technology, accounting for about 30%.
Extended data:
Anti-theft refers to preventing illegal infringement of other people's property and public property through improper behavior or existing behavior.
Whether it is a department store or a supermarket, the most easily lost goods in open-shelf stores are cosmetics, shampoos, cigarettes, films, batteries, chocolates, clothing/accessories (such as cashmere sweaters, fur coats, leather coats, etc.). ), CD/VCD is expensive and easy to carry. The loss of this kind of goods accounts for about 50% ~ 70% of the loss of shopping malls. If they are effectively protected, it will be of great help to reduce the overall loss.
In an open shop, the most easily stolen goods are displayed in places frequented by salespeople, and even when salespeople are busy, they can take good care of these goods, which will increase the difficulty of committing theft and be conducive to the anti-theft of goods; In addition, the goods that are most likely to be stolen should not be placed near the exit, because there is a large flow of people, and it is difficult for salespeople to find or identify thieves.
Baidu encyclopedia-supermarket anti-theft device