毕业设计（论文）-CATV有线电视网络管理系统--前置通讯控制机的系统软件设计.docVIP

CATV有线电视网络管理系统 CATV cable TV network administrative system -------前置通讯控制机的系统软件设计 Systematic software design of the controlling machine of leading communication 摘要 CATV前置通讯控制机是基于MCS-51单片机的智能控制设备。该设备为有线电视网络管理系统提供了一种前端通信控制手段。系统以MCS-51单片机为CPU，外扩一个8位A/D转换芯片，采集前端调制解调器的光入功率、光出功率、频率、电源电压等参数；系统以再生方式控制、管理上位PC机和下位数据终端机之间的数据通信；同时配备有一个5X8或5X11点阵式LCD液晶双行显示屏，可以根据需要随时显示相关数据及信息。CATV前置通讯控制机继承了MCS-51单片机系统功能强、体积小、功耗低、工作可靠、使用方便等优点，在CATV有线电视网络管理系统中起到了一个很好的桥梁作用，无论从外观还是其实用性上都给人一种赏心悦目的感觉。 关键词：AT89C52 LCD1602 TLC0834 IMP809 Abstract CATV leading communication controlling machine is the equipment of intellectual control based on MCS-51 one-chip computer. This equipment has offered a kind of front communication for network administrative system of cable TV and controlled the means. The system regards MCS-51 one-chip computer as CPU, outside expand one 8 A/D change chip , gather light , front of modem enter power , produce power , frequency , power voltage ,etc. parameter only; The system regenerates in the way control, the management position PC machine and between the lower position data terminal data communication; Simultaneously the equipment has 5X8 the lattice type LCD liquid crystal display monitor, may according to need to demonstrate the correlation data and the information as necessary. The CATV pretage communication control machine inherited the MCS-51 monolithic integrated circuit system function strongly, the volume small, the power loss low, the work has been reliable, merit and so on easy to operate, got up a very good bridge role in the CATV cable TV network management system, regardless of or in its usability all gave the person from the outward appearance one kind of pleasant feeling. Keyword：AT89C52 LCD1602 TLC0834 IMP809 MAX485 目录 CATV有线电视网络管理系统 1 CATV cable TV network administrative system 1 -------前置通讯控制机的系统软件设计 Systematic software design of the controlling machine of leading communication 1 第一章 前言 4 1.1 有线电视的发展状