[毕业设计精品]远程智能报警器设计制作

a1a0a2a3a4a5a7a8a6a10a11Ia12目录摘要a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9引言a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a91第一章：远程智能报警器的功能与方案a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a9a921.1总体设计分析a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a13a1321.2.1自动摘挂机a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a14a1421.2.2数据存储模块.21.3软件模块a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a15a161.3.1密码检测.31.3.2电话报警a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a18第二章总体设计a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a19第三章硬件单元电路设计a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a17a203.1方案论证a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a21a223.1.1数据采集a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a243.1.2数据存储.63.1.3拨号芯片a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a23a243.2信号检测电路a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a263.3模拟摘挂机电路a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a273.4双音调发生电路a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a25a283.5电源电路a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a303.6行列式键盘a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a31第四章软件设计单元a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a32a33a344.1键盘扫描程序的分析a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a29a33a35a36a37a38a39a40a41a42a43a44a45a46IIa474.2号码存储程序的分析a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a48a49a504.3显示程序的分析a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a52a534.4拨号程序的分析a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a52a544.5延时程序的分析a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a52a554.2软件系统的主模块设计a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a51a52a56第五章产品的制作、安装与调试a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a57a58a595.1产品的制作过程a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a61a625.1.1硬件部分的制作a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a61a625.1.2软件部分a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a63a61a625.2系统调试a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a60a61a62第六章芯片简介a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a64a65a656.1字符液晶模块控制器介绍a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a65a656.2拨号芯片的简介a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a66a65a676.2.1双音频编码a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a69a706.2.2存储芯片AT24C02a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a69a71总结a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a72a73参考文献a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a72a74致谢a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a72a75附录1：PCB板（主板）a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a72a70附录2:元器件清单a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a72a76附录3:主程序a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a68a72a71a77a78a79a80a81a82a83a84a85a86a87IIIa88远程智能报警器设计制作摘要本文设计的电话远程报警器是基于DTMF(双音双频信号)传输、作为电话的附属物而设计的家庭远程报警系统。以单片机AT89C51、双音调发生器TCM5087、串行存储器AT24C02及光偶PC817为核心，通过电话线路自动拨号报警的智能电话报警器。单片机在正常情况下处于等待状态，光偶PC817不工作，从而电话处于挂机状态。当探头检测有小偷进入时，产生中断信号给单片机，延时10mS后开始执行中断程序，启动拨号电路，送中断信号给单片机，单片机输出高电平，TCM5087的16脚输出高电平，T2立刻进入g4560通状态，g13475T2后g1889g11013D0g97D4g17728g2476g7509g5627后送g2052电话线g1016g12483，PC817的8脚从高电平g17351为g1314电平，T1g4560通，g13499电器g19393g2524，g2029g8504时程g6523g1144g6454机g16760为电话处于g6700机状态。g2528时单片机从串行存储器AT24C02中g16847出号g11733自动拨号，g6238g6164有存储的号g11733g18129自动拨g6183g980g17953后自动挂机。关键词双音g3822频，电话报警器，DTMFa89a90a91a92a93a94a95a96a97a98a99IVa100ThelongrangeintelligencereporttothepoliceamachineAbstractThetelephonelongrangeofwiththistextdesignreporttothepoliceamachineisthefamilylongrangeoftheadjunctbutdesignthatdeliverandBeatelephoneaccordingtotheDTMF(doublethesounddual-bandsignal)toreporttothepolicesystem.WiththelistslicethemachineAT89C51,doubletoneoccurrencemachineTCM5087,stringsavingmachineinlineAT24C02andlightaccidentallyPC817forcore,passthetelephonecircuitanautostirnumbertoreporttothepoliceoftheintelligencetelephonereporttothepoliceamachine.Thelistslicethemachinebeplacedintowaitforappearanceunderthenormalcircumstance,lightaccidentallyPC817notwork,thusthetelephonebeplacedintohangmachineappearance.Whilestretchingforwardanexaminationtothereisburglartointo,thecreationbreakoffsignaltogivelistslicemachine,10mSwhilepostponeempressthebeginningperformancebreakoffprocedure,thestartstirthenumberelectriccircuit,sendinginterruptionsignaltogivelistslicemachine,listslicemachineoutputhighelectricityeven,the16feetoftheTCM5087outputhighelectricityeven,theT2entertoleadanappearanceimmediately,afterT2againfromD0D4transporttothetelephonelinebothendsaftercommutatetheempressconnectbyavoidingapoleanti-ly,8feetofthePC817fromhighelectricityevenjumpforlowelectricityeven,theT1lead,shuttingtomatchaftertheelectricappliances,thedistancecontrolcommutationmachinetothinkatelephonetobeplacedintotakeoffthemachineappearanceatthistime.InthemeantimelistslicethemachinereadanumberanautostirnumberfromthestringthelinesavinglythemachineAT24C02,makingallnumberforsavestirthedozenautoatimeofempressautohangmachine.Keyword:DoubleDTMFwithmanysound,thetelephonereporttothepoliceamachine,DTMFa89a90a91a92a93a94a95a96a97a98a991a100引言g19555g11540g1166g1216生g8975g8712平的g6564高g2656g4445g19462g5859g16794的g3698g5390，g10317g2047是g17829g1972g5192，g4445g1852g19462g14551的g17855g2011g19668g16213给家庭g19462g11435报警系统g6564g1391g1114g17246g7481g17246g5203g8879的g5078g3342。g5625g19668开发g19766g2533g3835g1259、g1227g7696g1314g5277、g17828行g2499g19764的自动报警系统。g18504于g1315g4441电话g2656g12239动通信设g3803的g7234及，以及电话报警的g5567g6475、有g6940及g1227g7696g1314g5277等g1260g9869，g1856g1861通信g13605g6116g1114报警系统的g7380g1351传输g4198g1183。在g5062g7234及的g1856g1861电话g13605基g11796g990g11752g2058g980g12193g7044g3423家g11004自动报警系统，g17837g4557于g1457g19568g4633g8677的生g2641g17142产g4445g1852，有g11540g2325g2010g18337g16213的g5859g1053。g3252g8504设计g17837g1022自动报警系统g16025g13634系统以单片机AT89C51为核心，g13479g2524a101音频发生器TCM5087、g6980g6466存储器AT24C02及光偶PC817，通过电话线路自动拨号报警的智能电话报警器。g4439g2499以监测g11435贼入室行窃的信号。g11013于现代电话g13605络是g11013g1144g6454机g2656电话传输线g1861g2528组g6116，g6164以g4439的g2499g19764g5627非常高。该系统主g16213通过g980g1022单片机g6523g2058中心与电话g13605相连接。g11004户根g6466g19668g16213g6238自己的手机号g11733、办g1856室电话或报警监g6523中心的电话通过4*4矩阵键盘输入单片机。单片机g6523g2058中心在正常情况下g980直处在等待状态，监视是否有g11435贼入室行窃发生。g980旦有g11435贼入室行窃情况发生，通过发送中断信号驱动单片机，让g4439从待机状态进入报警状态，从而实现远程报警。具体工作过程如下：单片机g6523g2058中心在正常情况下g980直处在待机状态，当探头检测g2052有g1166时，引起单片机产生中断；然后开始执行中断程序，启动拨号电路，模拟g6700机，收g2052g1114g1144g6454机反馈的拨号音后，开始拨g6183事先设定好的电话号g11733，若占线g2029自动g18337拨；g6238g6164有预存的号g11733g18129拨g980g17953，g1457证g1114报警的有g6940g5627g2656g2499g19764g5627。a102a103a104a105a106a107a108a109a110a111a1122a113第一章：远程智能报警器的功能与方案1.1总体设计分析根g6466远程智能报警器系统的具体设计g16213求：通过电话g13605g4557家里的g4445g1852实现监视；g6523g2058器g2499以实现自动模拟g6700挂机我g1216设计g8504系统具有以下单元功能模块；（1）设g13634手机号g11733；（2）双音频信号编/解g11733；（3）输入号g11733时显示；（4）自动g6700挂机；（5）中断报警；（6）状态检测；理论g990g1144g6454机g6164发出的各g12193信号音g18129g2499以通过软件编程而g16794g2047，即通过单片机发出的脉冲信号g7481检测信号音单位时间内的脉冲g1022g6980计算出其频率，从而完g6116信号音g16794g2047。但是从系统的g2499g19764g5627g2656程序的g13479构设计g990g2010析，我g1216选择g1114硬件g7481解决双音频信号解g11733等功能模块。自动g6700挂机g2656信息检测必须使g11004具体硬件电路g7481实现。综g990g6164述，我设计的信息检测、自动g6700挂机、双音频解g11733等功能模块使g11004硬件电路实现。而信号音计g6980、密g11733校验、在线修改密g11733等功能模块使g11004软件编程完g6116。下g19766就硬件以及软件实现的单元电路g2010g2047进行具体g2010析。1.2硬件模块本作品使g11004g1114g3835量的硬件电路完g6116部g2010功能模块，其目的就是充g2010利g11004硬件电路的g2499g19764g5627、稳定g5627，使整体电路达g2052比较高的稳定g5627。1.2.1自动摘挂机g3252为程g6523电话g1144g6454机g4557电话g6700机的响应是电话线回路电流突然g2476g3835为约30mA的电流，g1144g6454机检测g2052回路电流g2476g3835就g16760为电话机g5062g13475g6700机。自动g6700挂机电路g2499以通过单片a102a103a104a105a106a107a108a109a110a111a1123a113机g6523g2058g980g1022g13499电器的开关，g13499电器的g6523g2058g12483连接g980g1022g3835约300的电阻接入电话线g1016g12483，从而完g6116模拟g6700挂机。1.2.2控制电器通过AT89C51单片机g7481g6523g2058整g1022系统的工作，设g13634时：单片机通过键盘扫描得g2052报警号g11733并存g1166AT24C02中。当系统检测g2052有g1166进入时，就g6238存储的报警号g11733通过P2g2487送出1.2.3数据存储模块g8504部g2010是整g1022系统的关键，g4439的工作情况直接决定g1114系统的g2499g19764g5627。g13475过g13775g19417g3835量的文g10498g17176g7021，我发现使g11004电话g999g11004的双音频编解g11733g14467片进行输入双音频信号的解g11733，是比较常g11004的g980g12193g7053g8873。使g11004g19610g6116电路不但g3818g3272电路g12628单，而g1000g2499g19764g5627g5390。g13475过g999g11004g19610g6116电路的解g11733，信号g17728g6454g6116为不g2528的g11733g2058信号，g2499以直接g15999单片机g16847g2474。g980g14336常g11004的电话双音频编解g11733g19610g6116电路有5087、8870、8880等，g11013于我g1216g2494g19668发送信号，g13475过反g3809论证比较，g3252g8504我g1216决定使g11004双音调发生器TCM5087g7481完g6116g8504功能模块。下g19766是AT24C02与单片机的连接g7053g8873。a114a115a116a117a102a103a104a105a106a107a108a109a110a111a1124a1131.3软件模块g13475过比较，我决定使g11004AT89C51作为g6523g2058的单片机g14467片作为系统的g6523g2058中心。AT89C51是g980g12193g1314功g13803、高g5627能的8位单片机，片内有g980g10224g78g37Fg79g68g86g75Pg40g53g50M(g2499编程g2499g6842g19512的g16847存储器)。单片机接收g2052g11013探头发送g7481的信号，g17728g2052相应的中断处理过程。系统中，89C51g16213g6523g2058拨号g14467片产生正g11842的DTMF信号，完g6116g4557远处电话机的g2640g2495。g2490g3818，g17836g16213能有g6940g3332g2040断当g2081线路的状态，如g7536g17947g2052线路g5549等情况时g2499以有相应的等待机g2058。在g19283时间不通的情况下g2499以g7368g6454不g2528的号g11733g3822g8437g4593g16809，直g2052有g1166g14731得报警信息为g8502。1.3.1密码检测本单元g2499以在系统g2033始g2282的时g1517，在单片机内部的存储器的内部开g17779g980块g12366间g6930g13634密g11733。当g11004户输入密g11733的时g1517，单片机g6238输入的密g11733g1901入g2490g3818的g980块g12366间，然后利g11004g1955g8873g17828算比较g1016g13785是否相等。g17837g7691就g2499以实现密g11733检测的功能。1.3.2电话报警电话报警模块主g16213通过中断g7393g2165程序g7481实现。该程序的基本流程是g29报警器g6700机g15自动拨g2495号g11733g12819g990相应的报警号g11733g15如g15110、119g15或g980组g11004户的自己设g13634的g3278定电话号g11733、手机号g11733。拨g2495时g15报警器g6700机后先g4557电话线g990的信号进行检测g15检测g2052拨号音就拨号g15检测不g2052拨号音g16840g7138电话线g5062有g19394g20076g15g7092g8873拨号g15就自动挂机。若等待g989g8437后线路g1185然不通g15就拨g2495下g980g1022号g11733g30若g17947g5549音就先挂机g1889等待10g86g15g18337g7044拨号g15如g8504g989g8437后g1185然拨不通g15就拨g2495下g980g1022号g11733g15直g2052g4570电话g12819g990的g6164有号g11733拨完为g8502。a102a103a104a105a106a107a108a109a110a111a1125a113第二章总体设计2.1系统总体结构框图远程智能报警器g11013单片机构g6116主g6523部g2010，接g2487电路g6564g1391单片机与电话g3818线的接g2487。其中g2265g6336g11013信号检测电路、显示电路、电话号g11733输入电路、模拟g6700机挂机电路、DTMF编g11733发送电路等构g6116。g6700挂机g6523g2058远程智能g19462g11435报警g16025g13634系统g2419理g7706g3282如g32821.1g6164示。DTMF编g11733发送电路送出的是g11013g11004户g13475电话号g11733输入电路预先设定好并存储在CPg56中的电话号g11733，该号g11733g2499g19555g5859设g13634，g2499以是g5078内程g6523电话（如单位电话或110等）、手机或g4559g2640机等。显示电路g11004于状态设g13634时的显示；当信号检测电路测g2052有g1166g19395入时，即发出g16314发信号作为报警信号，g13475g6930g3835送入CPg56。CPg56延时10g86，若是主g1166进入，g2029g2499在g1783710g86内利g11004g3809位电路使CPg56g2033始g2282，否g2029g1946g3803报警。当输出为高电平时，CPg56g6363示模拟g6700机电路g6700机，发送DTMF电话号g11733，g2640g2495预设的g2475话g7053。g17837时就g1262有g1016g12193情况出现：g2475话g7053占线g2656g2475话g7053g6403g19095。若出现g12544g980g12193情况，系统进行模拟挂机、延时后g1889g6700机拨号，当g6238g6164有存储的号g11733g18129拨g6183g980g17953后挂机。本g16025g13634并g13864于电话机的g1016g12483，不g1262g5445响g2052电话机的正常使g11004。接下g7481就系统的单元电路进行g1183g13473。a118a119/a120a121a122a123输入a124a125a126a127a126a128a123a129输入电路a130a131a132a133a134a129a135a136a126a127a137a138a139a140a141a140a126a127a126a128a142a143a144a126a127a1452a146a146a147a147a148a149a150a151a152a153a154a155a156a157a1586a159第三章硬件单元电路设计3.1方案论证3.1.1数据采集g7053g7708g980：开始我g1216选g11004P2288g9921g6947传g5875器g7481g11842g16760是否有g1166进入g6163间，当有g1166进入时，P2288g1262产生信号，g13475g47M358g5203g3835后进入单片机的g44g49T1(P3.3)脚，使单片机程序进入中断系统，g4570存储的手机号g11733g6183出g2447，实现报警功能。g7053g7708g1120：g11004探头g7481模拟单片机的中断信号，通过程序比较得g2052g980g1022有g6940g6980g4395后，程序就g1563定有g1166进入g6163间，从而产生报警信号。3.1.2数据存储g7053g7708g980：选g11004AT24C01g6980g6466存储g14467片，该g14467片内存为128g1022g4395g14422，g2499g6842g1901100g987g8437，但内存较小，不利于系统的g6205g4649。g7053g7708g1120：选g11004AT24C01的延g1292g14467片AT24C02，该g14467片功能与AT24C01基本相g2528，但该g14467片的内存为256g1022g4395g14422，g5627g1227比g1260于AT24C01。3.1.3拨号芯片g7053g7708g980：g2499选g11004MC145436，MC145436是g19610收发于g980体的DTMFg999g11004g14467片，g19610g6116g5242高，体g12227小，g6642g5190g6212能g2159g5390，并g1000中间传输的是g1016g1022g2484g2164的音频信号，g7380后输出的是g1120进g2058编g11733，g1427于g6523g2058，但g6116本高，g3818g3272电路较g3809g7446g7053g7708g1120：选g11004TCM5087，该g14467片g3818g17728电路g12628单，g2499g11013g4557应的行g2027线产生音频信号，g1227g7696g1314。综g990g6164述，g6980g6466g18331g19610部g2010：g11013于g17837g8437设计不是g19766g2533g4470户，g6164以选g11004g7053g7708g1120。g6980g6466存储部g2010：g11013于AT24C01的内存小，不利于系统g6205g4649，g6164以选g11004g7053g7708g1120。拨号部g2010：g11013于MC145436的g3818g17728电路较g3809g7446，g1000g1227g7696g7126g17161，g6164以选g11004g7053g7708g1120。3.2信号检测电路g2419理中，在信号检测电路时，g11004传g5875器为P2288g15999动g5347g9921释电g1166体红g3818传g5875器。g4439g18331g11004平衡检差g7053g5347工作，g2494g5875应714m波g19283的g8975动g1166体红g3818辐射线，不g1262g2475环境温g5242及g2499见光的g5445响，传g5875器g2499g5875应10m以内的g1166体辐射红g3818线。g8975动g1166体辐射的红g3818线g15999传g5875器检测g2052后，传g5875器g4570产生微弱的电信号，g13475滤波、a148a149a150a151a152a153a154a155a156a157a1587a159g6930g3835，送给双g2533比较器。为g19462误动作，信号g4570与门限电平进行比较，产生脉冲信号输出，g4570高电平作为告警信号，送入CPg56。但我g1216在g17837设计中，g11004探头g7481代替。g980g14336情况下，探头处于工作状态。当探头检测g2052g8975动g1166体辐射的红g3818线时，探头g4570产生微弱的电信号，送入8051单片机，使单片机中断响应g18331g2474相应的动作。3.3模拟摘挂机电路设计主g16213思路：根g6466国家有关标g1946规定：不论任何电话机，g6700机状态的直流电阻应300g15有“g53”键的电子电话机的g6700机状态直流电阻应350。在挂机状态下，其漏电流5A。当g11004户g6700机时，电话机通过叉簧接g990约300的负载，使整g1022电话线回路流过约30mA的电流。g1144g6454机检测g2052该电流后g1427停g8502g19095流发送，并g4570线路电压g2476为g2325g1972伏的直流，完g6116接续。g3252g8504根g6466有关技术g6363标，模拟g6700挂机电路设计如g32823.1g6164示：a160a161a162a163模拟g6700挂机电路主g16213g11013g980g1022g989g7509管开关电路g6523g2058g13499电器的开关，g13499电器g6523g2058接入电话线g1016g12483的180电阻。当探头检测g2052有小偷信号时，g6700挂机信令g11013单片机通过使TXD/P3.1g2487g