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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/3847


    Title: 一種必須按門鈴才能打開的安全鎖
    A secure lock that cannot be unlocked without ringing the doorbell
    Authors: 卓胡誼
    白盛方
    汪詠欽
    黃常耀
    蕭百明
    廖智健
    Keywords: 安全鎖
    光遮斷器
    邏輯電路
    The secure lock
    The photo-interrupter
    Logic circuits
    Date: 2002
    Issue Date: 2009-08-15 20:03:12 (UTC+8)
    Abstract: 本文提出一種必須按門鈴才能打開的安全鎖﹔若人在門外,則必須依序完成下列三個動作才能將鎖打開:(1)插入正確的正卡(2)按門鈴(3)插入正確的副卡。而且(2)(3)兩個動作必須在(1)完成後兩分鐘內完成,同樣地(3)的動作必須在(2)完成後一分鐘內完成,否則不能開鎖。此外,若五分鐘內插入三次錯誤的卡片,則會發出警報。In this paper,we propose a secure lock thatcannot be unlocked without ringing the doorbell. Aperson outside has to finish 3 steps to open the lock:(1) to insert the right first-card (2) to ring the doorbell(3) to insert the right second-card. Step (2) and (3)have to be finished within 2 minutes after (1) is doneand (3) must be finished within 1 minute after (2).Any delay will lead to failure in opening the lock.Moreover, 3 times of insertion of wrong cards within5 minutes will cause alarm ringing.
    Relation: 中華民國第23屆電力工程研討會, 2002年, 台灣
    Appears in Collections:[電機工程系所] 會議論文

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