51单片机公园游客人数自动记录系统的设计+电路图
毕业论文关键词 自动计数 单片机 传感器 Proteus
Title Design of Automatic Counter and Recorder for the Number of Visitors
Abstract Population is one of China's basic national conditions. Whenever the "Golden Week", the crowds always give great pressure on tourism and scenic administrations. Exact information of the number of visitors is very important to accident prevention. Therefore, to design a set to count the number of visitors easily will have great significance. This design aims to create a simple, low-cost, multi-function and reliable counter based on MCS-51 MCU, together with photoelectric sensor, LCD1602, buzzer, MAX485, DS1302, DS18B20 and equipped with the function of communicating between MCU and PC and displaying date, time and temperature. It uses C language to write MCU program and Proteus as a development tool to simulate the system and design the PCB. This paper describes the background, research methods, design processes, software and hardware design ideas and programs, simulation and PCB production processes of this design. Finally, the finished product is shown in the end of the paper.
Keywords automatic counter MCU sensor Proteus
目次
1引言······1
1．1设计的背景与必要性·····1
1．2同类设计的发展现状·····1
1．3设计的主要内容与预期结果··1
1．4设计的研究方法与实现手段··2
1．5设计的意义····2
1．6本文的结构安排····2
1．7有关概念的解释说明·····2
2单片机基本理论······4
2．1单片机概述····4
2．251单片机的结构与原理····5
3设计思维与方案论证·····10
3．1整体设计思维与方案····10
3．2主要硬件模块及元器件选型方案论证····13
4硬件设计·····18
4．1总体电路原理设计····18
4．2单片机电路······19
4．3LCD1602显示电路······20
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