基于 proteus 的摘挂机识别仿真题目基于 proteus 的摘挂机识别仿真学院电气与信息工程学院专业电子信息工程班级电子 092 学生姓名吴赞长学号 200900303055 日期 2012 年5月1日 2 目录摘要..............................................................................3 引言..............................................................................4 一. 系统功能和结构.....................................................4 二. 硬件电路组成.........................................................5 振铃检测、模拟摘机电路................5 DTMF 信号解码电路(简介) ..............6 语音电路(简介) ......................7 三. 编程原理及功能..........................7 ....................8 程序清单...............................8 程序流程图.............................10 五. proteus 仿真及结果分析.....................................10 六. 心得体会...............................12 七. 参考资料...............................................................12 3 摘要本设计是主要是设计摘挂机识别的 proteus 仿真。本控制器采用性价比较高的单片机 AT89C51 作为中控 CPU 控制 MT8870 对电话按键的双音多频信号进行解码,来实现通过对电话按键的操作来控制远端的被控对象, 通过可录放语音芯片 ISD1110 来播放提示语音。系统硬件主要由振铃检测电路、模拟摘挂机识别电路、 DTMF 信号解码电路、语音电路和输出驱动电路等几部分组成。完成本次设计我们就必须掌握一定的基础:学会画流程图软件. 画电路图软件. 编程软件. 仿真软件的使用。一次设计就是一次学习的过程。【关键词】: 程控交换模拟摘挂机单片机 proteus 仿真 Abstract This design is mainly is the design of identification of proteus simulation pick hang up. The controller of the single chip puter AT89C51 is the high cost performance asa central control MT8870 CPU control to phone buttons a frequency signal decoding, to realize through the phone buttons to remote control operation of the controlled object, by recording voice chip can be ISD1110 to broadcast reminder tone. The system hardware mainly by the ringing detection circuit, simulation pick hang up circuit, signal decoding circuit, voice DTMF circuit and output drive circuit several parts. Completion of the design we must master a certain foundation: learn to drawing flow software. Draw a circuit diagram software. Programming software. The simulation software to use. A design isa process of learning. Keyword s : Program-controlled exchange Simulation p ick
