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何为EAS系统?

问答题
2022-05-09 21:46
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正确答案
EAS(Electronic Article Surveillance)系统是一种设置在门口、控制物品出入的RFID技术,俗称“门禁”系统。通常应用在商店、图书馆等地方。应用EAS系统时,首先在物品上贴附EAS标签,当物品被正常购买或者合法提取时,在服务处通过装置使EAS标签失效,物品就可以取走;当物品未经失效处理而经过门口时,EAS装置自动检测到活动性标签,就发出警报。

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简述EAS系统的组成
某超市时常发生某些贵重商品丢失的现象。为了解决该问题,超市公司的管理层决定引进一套电子物品监视系统(EAS)对这些贵重商品进行管理和销售,经过一段时间的运行,发现效果良好。具体的做法是:首先在这些贵重物品上粘附EAS标签,当物品被正常购买时,在结算处的EAS装置可使EAS标签失活,物品就可以取走。如果物品被非法拿走,当物品经过装有EAS系统的门口时。EAS装置就会自动检测标签的活动性,发现活动性的标签,EAS系统会发出警告,从而防止物品被盗。请分析下列问题: (1)给出EAS系统的组成和工作过程。 (2)试述EAS系统的作用。
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