數(shù)字邏輯電路課程設(shè)計(jì)-電子密碼鎖-文庫吧資料
2025-06-11 14:08本頁面
【正文】 20秒報(bào)警 5 根據(jù)設(shè)計(jì)的要求，設(shè)計(jì)的總體思想及設(shè)計(jì)順序?yàn)椋? （ 1）設(shè)計(jì)密碼設(shè)定及密碼輸入電路。國(guó)內(nèi)的不少企業(yè)也引進(jìn)了世界上先進(jìn)的技術(shù)，發(fā)展前景非?？捎^。在我國(guó)電子鎖整體水平尚處于國(guó)際上 70年代左右，電子密碼鎖的成本很高，市場(chǎng)上仍以按鍵電子鎖為主，按鍵式和卡片鑰匙式電子鎖已引進(jìn)國(guó)際先進(jìn)水平。 20世紀(jì) 80年代后，隨著電子鎖專用集成電路的出現(xiàn)，電子鎖的體積縮小，可靠性提高，成本較高，是適合使用在安全性要求較高的場(chǎng)合，且需要有電源提供能量，使用還局限在一定范圍，難以普及，所以對(duì)它的研究一直沒有明顯進(jìn)展。電子鎖的種類繁多，例如數(shù)碼鎖，指紋鎖，磁卡鎖， IC 卡鎖，生物鎖等。隨著電子技術(shù)的發(fā)展，各類電子產(chǎn)品應(yīng)運(yùn)而生，電子密碼 4 鎖就是其中之一。 關(guān)鍵詞： 電子密碼鎖；數(shù)字電路； 預(yù)置密碼；誤碼報(bào)警 Using logic gate design of electronic bination lock, this paper expounds its working principle, gives the specific circuit principle diagram of the bination lock with password preset function, strong confidentiality, error alarm, and alarm time can be set, at the same time using digital tube display the alarm time. Password correctly drive relay control lamp, when the error alarm signal by a buzzer, voice for intermittent selfdesigned 5 v regulated power supply, has the characteristics of power saving electricity. When the correct password bination lock can be opened, the green led light on behalf of the correct password, the lock can be opened. Password is not correct, the red leds lit up, at the same time a buzzer honking 5 seconds, the digital tube display 5 seconds time, at the end of the timing, 20 seconds timer starts. Keywords: electronic password ， bination lock， digital circuit preset ， Error alarm
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1