《毕业论文-电视台嘉宾灭灯系统的设计》.pdf

摘 要 “南宁电视台嘉宾灭灯系统”题目来自于南宁电视台项目部?其参照目标为江苏卫视“非
诚勿扰”节目的女嘉宾灭灯控制系统?但在其中提出了更高的要求?同时实现50位以上女嘉
宾现场参与节目?江苏卫视为24位?。受控灯盏数量的增加使得在通常的控制系统中面临如
下几大难点?
1、整体通信控制距离大大加长?
2、整体通信系统负载过大?
3、受控终端数量较大且需实现可调。
针对这几个问题?本设计拟使用RS485通信方式、可选5-15V通信电压、从机自身硬件
设置地址的方式解决此类矛盾。初步预定本系统可使最多255个终端工作点分布在一条长达
2Km以上的总线上同时工作。
宏观上讲?本系统采用MCS-51内核的STC12C5A60S2和STC89C52RC两款单片机分别作为
本系统的主机和从机核心处理芯片?构成一个由下位主机控制流程执行、下位从机负责终端
执行、上位机负责初始参数配置启动指令下达和灭灯结果输出显示等功能的复合型多机通信
协同处理工作系统。
本文将在江苏卫视“非诚勿扰”灭灯控制系统中已实现的功能之上?针对新项目涉及的
以上几大难点?从一个在校大学生的角度、严格按照工程开发实践要求、详细探讨实际项目
的开发流程及其关键技术资料的录入?为以后的在校大学生师弟师妹们实际工程项目的开发
奠定一些薄弱的实际项目开发基础。

关键词?单片机 上、下位机 串行通信 RS485通信

Abstract The title of "guests’ lighting-off system in Nanning TV " derives from the project department
of Nanning TV Station, which refers to the female guests’ lighting-off system in a program of “If
You Are the One” in Jiangsu Satellite TV. However, this thesis puts forward a higher requirement:
making 50 or more female guests on-site participation in the program (there are 24 women on-set at
present in Jiangsu Satellite TV). The increase in the number of controlled lights may cause several
problems if it is under the usual system.
1, the overall communication control gap is much longer;
2, the overall communication system load will be too large;
3, the number of controlled terminals will increase and adjustability is required.
As to these questions, this design will employ the RS485 communication, 5 ~ 15V voltage and
its own hardware address set to resolve such conflicts. Initially, this system is scheduled to utilize
255 terminal points distributed in a more then 2Km bus and make them work simultaneously.
From the macro perspective, the system is going to use the STC12C5A60S2 and
STC89C52RC of MCS-51 core chip as the master and slave core processing chip respectively,
aiming to form a mixed multi-machine system allowing multi-machines to co-process. In this
system, a lower host controls the execution; the hypogyny slave is responsible for the
implementation of the terminal; the epigyny is responsible for sending down the initial parameter
configuration directives and the output manifestation of lighting-off.
This thesis, based on the previous functions, will strictly conform to the practical requirements
for engineering development, and explicitly explore the development procedures of the practical
project and the login of its key technological information from a university student’s perspective. It
is hoped that this article will lay certain foundation in practical exploitation for teachers and
students in university.
Key words: single-chip, the upper and lower machine, serial communication, RS485
communication

目 录
摘 要........................................................................................................................................1
目 录.........................................................................................................................................I
插图索引目录........................................................................................................................ IV
表格索引目录........................................................................................................................ IV
第一章 项目概述..................................................................................................................1
1.1 项目概述..................................................................................................................1
1.2 项目目标..................................................................................................................1
 1.3 涉及关键技术...........................................................................................................1
第二章 总体方案设计................................................................................