以光作為密碼之解鎖機制

The Implementation of Lock System Using Light as a Secret Code

謝予恒(Yu-Heng Hsieh)

指導教授 ： 林華川

國立虎尾科技大學/電機資訊學院/光電與材料科技研究所/碩士(2014年)

摘要

本論文提出一種以光作為密碼之解鎖機制，它利用裝設於鑰匙上的三色LED發送出不同顏色、亮度的光線組合成光密碼，讓鎖具判斷鑰匙所發出的光密碼是否正確，然後鎖具利用紅外線通訊傳送資料給鑰匙，此時它會判斷鑰匙所發送出的資料是否能夠做出正確的回應，當鑰匙將所有正確的光密碼傳送至鎖具後，鎖具才會解鎖。此外系統同時設計有自動更換密碼功能以及光校正功能，更換密碼功能會在系統成功解鎖後，修改下次解鎖時所需要的解鎖密碼，以提高系統的安全性。光校正功能可以校正鑰匙發送之光線亮度，以確保鑰匙可以正確地進行解鎖程序。

關鍵字

光密碼 ； 光通訊 ； 電子鎖

並列摘要

This thesis presents a lock system that uses light as a secret code. Through the RGB LED installed on the key, it emits a Pass-Light comprised of lights of different colors and intensity. The lock will verify the Pass-Light emitted from the key and will send some data to the key through infrared transmission. Then, it will determine whether the key can correctly respond to the data transmitted. The lock can only be unlocked after it has received all the correct Pass-Lights from the key. In addition, this system is equipped with automatic password changing and Light-regulate functions. The automatic password changing function will activate automatically after the lock is successfully unlocked. It will generate a new set of Pass-Light for the next unlocking process to increase the level of security of the system. The Light-regulate function ensures the key to function properly in every unlocking process

並列關鍵字

Pass-Light ； Optical Communications ； Electronic lock

參考文獻

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