于基单片机的多功能自行车里程表的设计--毕业设计

摘 要本文设计了一种基于霍尔元件的自行车的速度和里程测量系统。以 AT89C52 单片机为核心，A44E 霍尔传感器测转数，从而实现对自行车里程、速度的测量统计，采纳 AT24C02 实现在系统掉电的时候保存里程信息，并可以将自行车的里程和速度的物理量用 LED 显示出来。硬件部分是利用霍尔元件将自行车每转一圈的脉冲数传入单片机系统，然后单片机系统将信号经过处理送往显示装置；软件部分用汇编语言进行编程，采纳模块化设计思想。关键词：速度；里程；霍尔元件；AT89C52 单片机AbstractI am based on the design of a Holzer element to the bicycle's speed and mileage measurement system in this thesis. The main content is take AT89C52 single chip as the core, A44E Holzer sensor in measuring speed, thus realizing the bicycle mileage and speed measurement statistics, the use of AT24C02 realize in save mileage information when the system power off, and can be displaying the bicycle mileage and speed of the physical quantity in the LED. The hardware part of the Holzer element will take the pulse number of every turn to bike transfer to SCM system, then SCM system will signal is processed to display device; use the assembly language programming in the software part, 啊pplication the idea of modularization.Keywords: Speed; course; Holzerelement; AT89C52 SCM目 录第一章 前言.......................................................................................................................１1.1 课题背景...................................................................................................................１1.2 课题设计的任务和要求...........................................................................................１1.3 课题设计的内容.......................................................................................................１第二章 自行车里程表的总体设计方案.............................................................................22.1 霍尔传感...