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智能密碼鎖畢業(yè)設(shè)計(jì)論文(參考版)

2025-07-01 04:45本頁面
  

【正文】 不過在生物特征防盜鎖和卡片鑰匙式。不過同時(shí)存在一些缺點(diǎn),使用這類防盜鎖,需要謹(jǐn)慎的保管卡,尤其當(dāng)遺失卡時(shí)為了防止信息的泄露與經(jīng)濟(jì)的損失,須盡快取消對(duì)該卡的授權(quán)。21世紀(jì)初,接觸式卡的技術(shù)成熟、價(jià)格低廉,應(yīng)用也較為廣泛;不過非接觸式卡使用更加隱蔽、方便,大有后來居上之勢(shì)。這是因?yàn)槿梭w生物特征例如指紋、虹膜、DNA等一些含有字符、圖形圖像和時(shí)間等電子生物信息要素均可成為唯一的開鎖鑰匙,通過對(duì)這些辨識(shí)度高、特征性強(qiáng)的信息的自由組合,能夠大幅度提高電子防盜鎖保密特性。智能密碼鎖的種類繁多,例如數(shù)碼鎖、指紋鎖、磁卡鎖、IC卡鎖、生物鎖、遙控式電子密碼鎖、卡片式密碼鎖等。由于這種密碼鎖的優(yōu)點(diǎn)突出,很有市場(chǎng)推廣價(jià)值,因此科研投入高。從20世紀(jì)初的技術(shù)水平和市場(chǎng)認(rèn)可程度看,最被人們廣泛歡迎與接受的是鍵盤式電子密碼鎖。我國開始對(duì)密碼鎖進(jìn)行的前期科學(xué)研究是在90年代初期。到了21世紀(jì)初,在西方的一些國家里,密碼鎖技術(shù)相比著更加先進(jìn),拓展的使用功能更加多樣化。顯而易見,它的使用范圍還有所局限,難以普及到大眾生活中,所以對(duì)它的研究有一度的停滯。因此人們愈發(fā)的欣賞這種方便安全的保護(hù)措施。有了這樣的雙層保障,就可以減少或避免由于鑰匙丟失或被盜竊后造成的安全隱患。關(guān)于智能密碼鎖的研究從20世紀(jì)30年代就開始了,已經(jīng)應(yīng)用于當(dāng)時(shí)的一些特殊場(chǎng)所。同時(shí),大規(guī)模集成電路技術(shù)的成熟,尤其是是單片機(jī)的普及,出現(xiàn)了帶微處理器的智能密碼鎖,通過不同的外接硬件,使鎖具功能多樣化,從而提高了安全性與可靠性,應(yīng)用日益廣泛。五、基本要求,編寫代碼,進(jìn)行電路仿真;;,要求不少于2000字;六、其它(包括選題來源)指導(dǎo)老師提供 指導(dǎo)教師: 年 月 日附件3:開題報(bào)告開題報(bào)告題目名稱基于單片機(jī)的智能密碼鎖的設(shè)計(jì)課題來源自選主要內(nèi)容一、 課題意義智能密碼鎖是一種通過密碼輸入來控制電路或是芯片工作,從而控制機(jī)械開關(guān)的閉合,完成開鎖、報(bào)警、閉鎖任務(wù)的電子產(chǎn)品。三、重點(diǎn)研究問題1. 通過端口擴(kuò)展單片機(jī)的功能;2. 實(shí)現(xiàn)各個(gè)模塊之間的聯(lián)系;3. 以單片機(jī)為主控芯片實(shí)現(xiàn)智能密碼鎖的功能。附件 2:任務(wù)書畢業(yè)設(shè)計(jì)任務(wù)書(基于單片機(jī)的智能密碼鎖的設(shè)計(jì))一、畢業(yè)設(shè)計(jì)目的1.通過畢業(yè)設(shè)計(jì)來檢驗(yàn)所學(xué)知識(shí)的實(shí)際應(yīng)用系統(tǒng)設(shè)計(jì)的能力;2.提高自學(xué)自糾、查找資料與進(jìn)行科研實(shí)驗(yàn)的能力。期刊文章。 期刊文章。基于這些優(yōu)勢(shì),該鎖可廣泛應(yīng)用于民用門和倉庫門。因?yàn)檫@個(gè)鎖系統(tǒng)使用紅外遙控器,有很多優(yōu)點(diǎn):紅外發(fā)射裝置采用紅外發(fā)光二極管,微型遙控發(fā)射器很容易操作并且價(jià)格便宜。主程序流程圖如圖4所示。最后,在內(nèi)部系統(tǒng)的原始數(shù)據(jù)集的數(shù)據(jù)進(jìn)行比較,并確認(rèn),如果相同,則解開密碼鎖,如果不同的話放棄開鎖。最后,通過紅外發(fā)光二極管發(fā)出的遙控信號(hào)為940nm的紅外光的波長(zhǎng)。當(dāng)您選擇遙控開鎖的方式,單片機(jī)上按鍵將被鎖定。(5)當(dāng)輸入密碼,該電路將開始自動(dòng)計(jì)時(shí),如果正確地輸入了第一個(gè)密碼,輸入第兩個(gè)密碼號(hào)的時(shí)間間隔應(yīng)該是在3秒內(nèi)。(3)5個(gè)有效的密碼必須按順序輸入,如果沒有按“”鍵確認(rèn),錯(cuò)誤的命令或錯(cuò)誤的密碼將不會(huì)開鎖,并且五秒后會(huì)發(fā)出報(bào)警信號(hào)來提醒用戶。在同時(shí),電路進(jìn)入擴(kuò)張狀態(tài),在5秒后,電路將自動(dòng)恢復(fù)到鎖存器的初始狀態(tài)。有兩套密碼存儲(chǔ)在可擦除可編程只讀寄存器中,P2連接數(shù)碼管,用來顯示鍵是否被按下,這意味著只有報(bào)警,LM386可以提供電源,斷電通常,這大大降低了電流消耗。紅外遙控發(fā)射器的設(shè)計(jì)[3]如圖2所示。具體工作過程如下:發(fā)射:首先,然后通過紅外發(fā)光二極管發(fā)射出去,發(fā)射距離是10米左右。遙控鎖的基本功能設(shè)計(jì)被分成五個(gè)部分,如選擇密碼,密碼顯示,解鎖鍵盤,密碼錯(cuò)誤報(bào)警,遠(yuǎn)程開鎖。該系統(tǒng)是一個(gè)紅外遙控電子鎖與本地和遠(yuǎn)程開鎖的功能,采用微電腦單片機(jī)AT89C51 [ 2 ]作為本設(shè)計(jì)的核心組成部分,根據(jù)紅外線遙控原理和單片機(jī)串行發(fā)送器和接收器的功能。高的抗干擾性,操作錯(cuò)誤少,低功耗,包括其他的優(yōu)點(diǎn),如快速響應(yīng)紅外傳輸,傳輸效率高,運(yùn)行穩(wěn)定可靠。例如:接觸式密碼鎖系統(tǒng)成本低,體積小,卡本身無需電源,但不太方便,接觸磨損。關(guān)鍵詞:紅外遙控器,單片機(jī),解鎖1引言電子技術(shù)的飛速發(fā)展給以往鎖的生產(chǎn)帶來了巨大的改變,生產(chǎn)多種先進(jìn)的鎖,如聲控鎖,磁力鎖,密碼鎖,遙控鎖和指紋鎖。 AT89C51單片機(jī)是用來使程序指令實(shí)現(xiàn)的軟件。設(shè)計(jì)密碼鎖包括硬件系統(tǒng)設(shè)計(jì)和軟件系統(tǒng)設(shè)計(jì)。 use digital signal coded modulationto improve antiinterference when signal are transmitted, less disoperation , low power consumption, including other advantages, such as fast response infrared transmission, high transmission efficiency, stable and reliable operation .Based on these advantages, this lock can be widely used in civil doors and warehouse doors. References: [1] Fenzl Heinz, Kliner Alois. ELECTRONIC LOCK SYSTEM: CONVENIENT AND SAFE. Journal article. 1987, 22(4):150153. [2] Guangfei Li. The example instruction of singlechip course design. Beijing: Beijing University of Aeronautics publishing pany, 2004. [3] Yongxiong Pan, He Sha, Xiangyang Liu. Practical teaching materials of electronic circuit CAD. Xi’an: Xi’an electronic science and technology university publishing pany, 2001. [4] Ur Rehman, Ejaz. Simple electronic lock uses singletransistor circuit. Journal article. 2003, 51(11):67.中文翻譯紅外遙控電子密碼鎖的設(shè)計(jì)Tianxing Meng, Lanlan Yu電氣與電子工程學(xué)院山東理工大學(xué)淄博市,中國mtx0936摘要:鎖用單片機(jī)作為控制核心。 the system will automatically give up and return to the initial state. Remote unlocking works When you select the way of remote unlocking, this machine key will be blocked. As long as the user pressed the button on port of AT89C51 with the remote controller in the hand, there will be digits issued from the port on the AT89C51, the sending process is as follows: First 5FH was sent from the , and then back to the port for internal modulation, the rule of the modulation is modulate when 0 level,1 level not, finally, sent the modulated data through the mouth , sent out remote control signals with a wavelength of 940nm infrared light through infrared lightemitting diodes. In the machine control circuit, there is a receive head matched with infrared lightemitting diode in the port of the AT89C51,then received optical signals are converted to electrical signal data. Finally, pare the data with the original data set in internal systems and confirm that if the same will be holding its lock, and if not then abandon the lock. 3 The Design of Software program System software design uses C51 as programming language to realize the remote control of electronic locks. The main program flow chart is shown in Figure 4. 4 Conclusions In this paper, an infrared remote control electronic locks was designed and implemented, the main technical indicators are: the lock opening, password storage, the effective protection of user39。s password, autoalarm if the wrong password, unlock the keyboard of the machine, remote unlocking and other functions. AT89C51 microcontroller was used to program instruction for the achievement of the software. Been tested, the system can achieve the above functions. KeyWords: infrared remote control, microcontroller, unlock1 Introduction The rapid development of electronic technology has brought great changes to the old lock production, producing many kinds of advanced locks, such as voiceactivated locks, magnetic locks, password locks, remote locks, fingerprint locks and on. At the moment, the main directions of the lock system development [1] at home and abroad are: contact password lock system, noncontacttype password lock system, intelligent identification lock system, but there are a corresponding different shortings. For example: contacttype password lock system low cost, small size, the card itself need no power, but less convenient andcontact wear. Because of infrared remote control was used in this lock system, there are many advantages: miniature remote control transmitter is easy and inexpensive。最后,感謝在大學(xué)期間認(rèn)識(shí)我和我認(rèn)識(shí)的所有人,有你們的伴隨,才有我大學(xué)生活的豐富多彩。同時(shí),畢業(yè)設(shè)計(jì)完成之際,我由衷地感謝陳俊峰老師對(duì)我的幫助和指導(dǎo),感謝寢室的兄弟們,在我遇到各種各樣復(fù)雜問題的時(shí)候,給予我鼓勵(lì)和幫助,使我的分析問題和解決問題能力有了很大的提高。四年的大學(xué)生活馬上就要結(jié)束了,在這段難忘的光陰中,我有許多美好的回憶。由于本人經(jīng)驗(yàn)的匱乏,在進(jìn)行設(shè)計(jì)時(shí),有許多考慮不完善的地方,如果沒有導(dǎo)師的悉心指導(dǎo),以及一起工作的同學(xué)們的支持,想要完成這個(gè)設(shè)計(jì)是非常困難的。智能鎖取代機(jī)械鎖是一個(gè)必然的趨勢(shì),因?yàn)橹悄苕i有強(qiáng)大的技術(shù)優(yōu)勢(shì)與安全保障,我相信,智能密碼鎖會(huì)讓更多的人更放心地在更多的場(chǎng)合使用,也會(huì)讓我們的未來更加安全。該電路設(shè)計(jì)還具有按鍵有效提示,輸入錯(cuò)誤提
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