外文翻譯資料----語音電子密碼鎖的設(shè)計(jì)-其他專業(yè)-文庫吧在線文庫
【正文】 tor And l4 from the system can be a clock, timer / counter, time benchmark generator, external interrupt, key wakeup call, Universal Asynchronous serial munication and software interruption interrupt source, Very suitable for realtime applications。該密碼鎖安全、有效、可靠，而且具有語音識別、密碼預(yù)置、保密性 強(qiáng) 誤碼提示等特點(diǎn)。 3 系統(tǒng)硬件的設(shè)計(jì) 本系統(tǒng)采用具有內(nèi)核的凌陽 SPCE061A 單片機(jī)，該芯片內(nèi)有 ADC、 DAC、定 7 時器／計(jì)數(shù)器、 RAM、 FLASH等器件，加上適當(dāng)?shù)耐鈬娐放c配套的凌 陽公司的集成開發(fā)環(huán)境，可以很方便地完成硬件設(shè)計(jì)和軟件編程，從而實(shí)現(xiàn)上述功能。系統(tǒng) 8 為了滿足可靠性設(shè)計(jì)，采用晶體管構(gòu)成驅(qū)動電路。在使用 SPR4096 時，采用 ResWriter 對 SPR4096 進(jìn)行讀寫操作，用于存儲說話人的個性特征參數(shù)參考模板。該芯片能將被測電流 I 轉(zhuǎn)化成對地輸出電壓 U，且有測量范圍大、精度高、輸出電壓 U 和被測電流 I成正比等特點(diǎn)。 5 結(jié)論 本系統(tǒng)采用 SPCE061A16位單片機(jī)構(gòu)成嵌入式語音處理與控制系統(tǒng)，操作簡單，易于使用，但語音識別能力尚有待提高。PROBE可工作于凌陽 IDE集成開發(fā)環(huán)境軟件 nSP(tm)下，具有編輯、編譯、鏈接、調(diào)試以及仿真等功能。在發(fā)送端，電子鎖具通過脈沖變壓器 T 將調(diào)制好的數(shù)據(jù)信號升壓后發(fā)送出去；在接收端，脈沖變壓器 T 將接收到的數(shù)據(jù)信號降壓后送解調(diào)器，以減少載波信號在傳輸 9 過程中的損耗。識別鍵盤有無鍵被按下的方法是：讓所有列線均為低電平，檢查各行線電平是否有高電平，如果有則說明有鍵被按下；如果沒有，則說明無鍵被按下 (實(shí)際編程時應(yīng)考慮按鍵抖動的影響，通?？偸遣捎密浖訒r的方法進(jìn)行消抖處理 )。因此，可以直接將語音信號送給此輸入通道，完成 8kHz語音信號的采集、編碼并存儲到片外 FLASH中，簡化了電路設(shè)計(jì)。系統(tǒng)主要的功能是：在訓(xùn)練時，說話人的聲音通過麥克風(fēng)進(jìn)入說話人語音信號采集前端電路，由語音信號處理電路對采集的語音信號進(jìn)行特征化和語音處理，提取說話人的 個性特征參數(shù)并進(jìn)行存儲，形成說話人特征參數(shù)數(shù)據(jù)庫。s current / voltage converter chip MAX471. 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 5 SPCE061A the development of online debugger PROBE To achieve. It uses a builtin online SPCE061 Circuit Simulation ICE (InCircuit Emulator) and Sunplus39。s living standards improve and strengthen the sense of security, safety locks system bees essential, therefore a password lock, magic locks, electronic locks, laser lock, voiceactivated lock locks, etc., they are On the basis of traditional keys, using one or more passwords, different voices, different magic field, different sound, different light beams of different images (such as fingerprints, retina retina, etc.) to control open the lock. In this paper, using speech recognition technology and keyboard to control the importation of the integration of SCM in Sunplus SPCE061A achieve a voice on the electronic certification system password lock. 2 voice electronic passwordlock system This system is mainly posed of Sunplus SPCE061A SCM, MIC input circuit, voice output circuit, 4 4 keyboard, six Qiduan LED display and output control and FLASH memory ponents. System is the main function: the training, the speaker39。s voice through a microphone into the speaker voice signal acquisition frontend circuit, by voice signal processing circuit on the acquisition of the characteristics of voice signals and voice processing, from the speaker39。s online series Line programming. PROBE can work in Sun
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