廣播錄放盤人機界面設(shè)計

電氣工程論文編號:DQ121   論文字?jǐn)?shù):15302,頁數(shù):34

目  錄
 摘 要………………………………………………………………………………I
 目 錄…………………………………………………………………………….III
1  緒 論………………………………………………………………………………1
 1.1  背 景……………………………………………………………………..…1
 1.2  任務(wù)和目標(biāo)………………………………………………………..……..…1
2  錄放機功能特性………………………………………………………..……..…..2
   2.1  功能特性………………………………………………………..……..……2
   2.2  主要技術(shù)指標(biāo)…………………………………………………………...….3
3  總體設(shè)計方案………………………………………………………..……..……..4
   3.1  系統(tǒng)總體結(jié)構(gòu)…………………………………………….………..……….4
   3.2  人機操作界面結(jié)構(gòu)………………………………….……………………...4
4  硬件設(shè)計……………………………………..……………………………………5
   4.1  芯片選擇………………………………………………….…...……..……..5
       4.1.1  SN74HC164N串入并出8位移位寄存器………….………..………5
       4.1.2  ISD4002系列 2-8分鐘單片語音錄放電路………….……..…….6
       4.1.3  AT89C51單片機…………….………………………………………8
       4.1.4  AT89C2051單片機…………………….……………………………9
5  人機操作面板原理圖設(shè)計………………………………………………………11
   5.1  鍵盤掃描原理……...…………………..………………………………….11
       5.1.1  按鍵確認(rèn)……………………….………………………………….11
       5.1.2  按鍵防抖動技術(shù)……….…………..………………..…………….11
   5.2  LED顯示原理………..…………………………………………………….12
       5.2.1  動態(tài)顯示………………..………...……………………………….12
       5.2.1  串行接口的動態(tài)顯示電路設(shè)計……………...…..……………….12
   5.3  設(shè)計軟件及設(shè)計環(huán)境………………...……..…………………………….13
       5.3.1  protel軟件介紹………………….………………………………13
       5.3.2  電路設(shè)計的概念………………...…………..……………..……...14
   5.4  電路板原理圖設(shè)計………………..………...…………………………….15
       5.4.1  新建設(shè)計數(shù)據(jù)庫文件………………..………...………………….15
       5.4.2  打開和管理設(shè)計數(shù)據(jù)庫………………..………...……………….16
       5.4.3  設(shè)置電路圖紙大小………………..………...…………………….17
       5.4.4  在工作平面上放置元件………………..………...……………….18
       5.4.5  繪制電路原理圖………………..………...……………………….18
       5.4.6  生成網(wǎng)絡(luò)列表………………..………...………………………….20
   5.5  PCB板設(shè)計………………..………...……………………………………..21
       5.5.1  啟動編輯器、規(guī)劃電路板………………..………...…………….22
       5.5.2  裝入網(wǎng)絡(luò)表及元件的封裝………………..………...…………….23
       5.5.3  自動布線和手工調(diào)整………………..………...………………….24
6  使用方法與調(diào)試………………..………...……………………………...………25
   6.1  上電方式選擇………………..………...………………………………….25
   6.2  正常廣播啟動………………..………...………………………………….25
   6.3  事故啟動………………..………...……………………………………….25
   6.4  電子錄放機………………..………...…………………………………….26
 6.5  磁帶放音機操作………………..………...……………………………….26
 6.6  唱機操作………………..………...……………………………………….27
 6.7  測試………………..………...…………………………………………….27
7  論文總結(jié)………………..………...……………………………………...………28
   致 謝………………..………...…………….………………………...………….29
   參考文獻(xiàn)………………..………...……………………………………...………30

摘要
  隨著社會的進(jìn)步和科技的發(fā)展，人們的生活水平和生活要求也逐漸提高，對各類產(chǎn)品的功能以及性價比的要求越來越高，只有適合消費者生活需求的產(chǎn)品才能得到認(rèn)可。
  HGT2212/HGT2222 廣播錄放盤是應(yīng)急廣播系統(tǒng)中的前置源及系統(tǒng)啟動中心控制設(shè)備。HGT2212背景音樂為磁帶，HGT2222 背景音樂為CD/MP3，兩種皆有與聯(lián)動設(shè)備的接口。錄放盤采用電子固態(tài)錄音方式做為事故廣播和錄音。該系列產(chǎn)品在設(shè)計時本著保證緊急狀態(tài)下的可靠工作，同時注重正常背景廣播的原則，增加了許多實用性很強的功能，如悅耳的鐘聲進(jìn)入、背景音量漸進(jìn)控制等功能。而最具特色的是：該系列產(chǎn)品配合兩套功放產(chǎn)品實現(xiàn)同一時間下緊急廣播和背景廣播同時播放的功能，既完成了事故區(qū)域的指揮疏散任務(wù)，又保持了非事故區(qū)安靜祥和的氣氛。
 在本畢業(yè)論文通過這個項目的開發(fā)過程，研究并設(shè)計CD錄放機的輸入、顯示等人機界面電路。通過操作界面實現(xiàn)對CD機功能的操作和監(jiān)控。使用protel99SE軟件進(jìn)行原理圖和PCB的繪制和制作的一般方法。
 
關(guān)鍵詞：廣播錄放盤；人機界面；protel99SE軟件；原理圖；PCB板

Abstract
 With the progress of society and the development of technology, people’s living standards and requirements have gradually increased, and their requirments for the performance and the cost-effective of various products have become increasingly high. Therefore only those products that can meet the living needs of consumers can be accepted.
 HGT2212/HGT2222 broadcasting recorder is the pre-launch audio resource and the central controlling equipment of the emergency broadcasting system. The background music of HGT2212 is played by tape and the background music of HGT2222 is played by CD or MP3, both of them have an interface with the linkage device. The recorder uses the solid-state electronic recording mode for broadcasting and recording incidents. On the principles of ensuring a normal performance in case of emergency as well as focusing on ordinary broadcastings, this series of products are added a number of practical features, namely nice bell-sound entry, background incremental volume control and so on. Among them the most characteristic one is-- with two sets of power amplifiers this series of products can make an emergent broadcasting and a backgroud broadcasting at the same time, so that not only the command mission of evacuation in incident region can be achieved, but also a tranquil and peaceful atmosphere in non-accident areas can be mantained.
 Through the development process of this project, this thesis studies and designs the man-machine interface circuits for various processes such as inputting, displaying and so on in a CD recorder. In this way, the functions of operating and monitoring can be achieved through the user interface of the CD player. Besides, the protel99SE software is used to draw and make the schematic and PCB board of the device.
 
 Key words: broadcasting recorder; man-machine interface; protel99SE software; schematics; PCB board