【導(dǎo)讀】基于AT89C51單片機的紅外遙控系統(tǒng)密碼鎖控制。紅外電子密碼鎖能實現(xiàn)多種控制功能有較好的市場發(fā)展前景和技術(shù)應(yīng)用價值電。子密碼鎖克服了機械式密碼鎖量少安全性能差的缺點特別是使用單片機控制的。智能電子密碼鎖不但功能全而且具有更高的安全性和可靠性并且電子密碼鎖只。需記住一組密碼無需攜帶鑰匙免除了人們攜帶鑰匙的煩惱被越來越多的人所喜。歡針對傳統(tǒng)的機械鎖的各種缺點和對安全性要求設(shè)計了一種紅外遙控電子密碼。鎖可以滿足安全方面的要求也能夠?qū)崿F(xiàn)特殊環(huán)境下的使用需求系統(tǒng)能完成開鎖。出錯報警修改用戶密碼等基本的密碼鎖的功能并且能實現(xiàn)遙控掉電存儲聲音提。第2章系統(tǒng)設(shè)計方案3. 33發(fā)射和接收裝置10. 41遙控發(fā)射部分程序設(shè)計20. 遙控編碼脈沖發(fā)射程序23. 息技術(shù)的發(fā)展電子密碼鎖的技術(shù)領(lǐng)域已發(fā)展的十分成熟從目前的技術(shù)水平和市。場認(rèn)可程度看使用最為廣泛的是鍵盤式電子密碼鎖該產(chǎn)品主要應(yīng)用于保險箱保?？刂葡到y(tǒng)要求能對紅外控制指令信號精確編碼并迅速發(fā)送。儲器器件采用ATMEL公司

　　

【正文】 cuit Enter key part of a total of the number keys passwords keys set the key shown password to confirm removal of keys and passwords and other key 16 keys enter your password and for the realization of function keys This design uses a wakeup function keys of the IO low eight IOA0 IOA7 to 4 4 as the control input of the keyboard which can b e rational use of hardware resources and programming flexibility Recognition keyboard keys are pressed whether the method is Let all out lines are low check the traffic on whether there is a highlevel if there is a statement that a key is pressed if not then no keys are pressed Actual programming keys should be taken into account the impact of jitter usually always use the software delay processing methods Consumers buffeting Identify specific keys used scanning method homebyzero level out and check the level of the carriageway of the changes if a line from the low level into a high this trip can be sure this column crosspoint Button is pressed 35 FLASH expansion of external circuit SPCEO61A FLASH memory chip of only 32 K large number of players in the voice of resources needs of expanding memory The design Sunplus Technology Inc SPR4096 as a memory expansion bined with SPCE061A broadcast voice SPR4096 in use the use of SPR4096 ResWriter to read and write operation used to store the speakers personality parameters reference template 36 the lock and lift activation SCM SPCE061A plete identification and display the drive to realize the implementation of the electromagic lock function and to detect its drive current value to receive alarm signals sent by sensors such as sending data SCM receive the type code and stored in FLASH in the password if the correct password the drive for the implementation of the electromagic lock if your password is not correct allowing operators to reenter your password can enter up to three If the three are not correct the MCU through intelligent munication lines to monitor the police SCM will unlock operation and each time the electromagic actuator drive current value as a status information sent to the smart monitor will receive the report from the sensor interface information is also sent to the intelligent monitoring as smart Analysis of the basis In the transmitter electronic locks through the pulse transformer T will modulation good boost after data signals sent out in the receiver pulse transformer T will receive the data signal demodulator buck evacuation to reduce the carrier signal transmission In the process of wear and tear In order to reduce munication and mutual interference between the power supply chokes L the choice of coupling capacitance C to prehensive considerations shown in Figure 4 a carrier frequency f0400kHz in order to ensure that most of the energy transmission signal to the receiver Duan L for a 337 H C10047 F Current surveillance function is to prevent the destruction of munication lines and electromagic actuator for some reason the flow of electromagic coil currents too large burning coil Current Monitor by IM panys current voltage converter chip 471 The chip can be measured current I into pairs to the output voltage U and is measured Wai high precision and U output voltage proportional to the measured current I characteristics Current monitor output voltage service A D converter read through the single A D converter results in the current line was informed of the situation through the timely detection of abnormal issued its report 4 system software design SPCE061A the development of online debugger PROBE To achieve It uses a builtin online SPCE061 Circuit Simulation ICE InCircuit Emulator and Sunpluss online series Line programming PROBE can work in Sunplus IDE Integrated Development Environmental software nSP tm with editing pile link debug and simulation capabilities Use IDE friendly interface the dropdown menu shortcuts and quick access to the list can be ordered so that the users programming and missioning work more convenient and efficient In addition IDE software simulation can not connect the simulation board under the simulated conditions of the various functions to the hardware debugger When the system work the main function of the call to plete a specific function of the human voice training training for the future success of voice recognition according to the order to identify the implementation of the keyboard control operation according to the different function keys the implementation of the corresponding procedures to plete Password changes settings contrast shows and other functions 5 Conclusion The system uses a SPCE061A 16bit microcontrollers embedded voice processing and control system easy to use easy to use but the speech recognition capabilities have yet to be improved Electronic password lock technology development so far has been widely used in higher property security areas as information technology and puter technology and the constant development voice electronic password lock technology will have greater development and ultimately achieving efficiency safety And reliable Voiceprint control of the voice of electronic locks 哈爾濱工業(yè)大學(xué)華德應(yīng)用技術(shù)學(xué)院畢業(yè)設(shè)計論文 IV 哈爾濱工業(yè)大學(xué)畢業(yè)設(shè)計論文 I 42 顯示電路 電源電路 單片機 報警電路 鍵盤輸入 開鎖電路 復(fù)位電路 紅外遙控 密碼儲存 XTAL1 XTAL2 開始 返回 鍵盤掃描 轉(zhuǎn)按鍵功能程序 有鍵閉合 轉(zhuǎn)脈沖發(fā)射程序 鍵按下 開始發(fā)送 初始化 Y 開始 閉合鍵釋放否 有鍵閉合 閉合鍵號放入 A 延時 10ms 返回 有鍵閉合 逐列逐行掃描 判斷閉合鍵鍵號 發(fā)射開始 裝入發(fā)射脈沖個數(shù) 發(fā)送 3ms 停發(fā) 1ms R1 1 0 停 發(fā) 10ms 以上 發(fā) 1ms 脈沖 返回 停發(fā) 1ms 開始 初始化 鍵盤掃描 有鍵按下 轉(zhuǎn)按鍵功能子程序 中斷開始 低電平脈沖 2ms 接收并對低電平 負(fù) 脈沖計數(shù) 高電平脈寬 3ms 按脈沖個數(shù)至對應(yīng)功能程序 中斷返回