公共自行车锁止器设计

公共自行车锁止器设计(任务书,开题报告,论文9000字)
摘 要
近几年来，由于交通拥堵的问题和环境污染的问题日益严重，作为绿色环保的交通工具自行车成为了世界人民新一代的“宠儿”，全世界的自行车使用量都在增加。在当今中国，公共自行车的发展非常迅速，在全国范围内都流行起来，“公共自行车”就是在城市、大学城、大型景区、大型企业内等公共区域内，隔出一定的位置，安排好一些公共自行车停放的站点（比如车站、码头、景点、商业繁华区，公交车对接处、地铁站出口，公交换乘点等），每个租赁点放置20辆左右的自行车，市民可以在一定时间内免费或者支付少量租金使用，这样可以便于市民低碳出行，即锻炼了民众身体，又使城市交通畅通，减少环境污染。
随着科技的不断发展，人们对于自行车方面的研究和投入不断加大，关于公共自行车的安全问题也越来越受到重视。本文介绍了一种智能公共自行车锁止器系统的设计，它的主控芯片基于STC89C52 单片机。本系统硬件部分使用无线射频技术RFID控制模块，锁具使用一种电磁锁，市民通过刷卡控制电磁铁控制电路解锁自行车，为了检车锁具是否到位，增加了到位开关检测电路模块。软件部分使Keil编写了系统程序。
关键词：锁止器 无线射频 电磁锁 到位开关检测

Design Of Public Bicycle Lock
Abstract
     In recent years, due to traffic congestion and environmental pollution problems have become increasingly serious as green transport bicycles become people of the world a new generation of "Beloved", bicycle use is increasing worldwide. In today's China, the development of public bike very quickly, are popular in the country, "public bicycles" is within the city, University City, a large area, public areas and other large-scale enterprise, every certain distance, some planning public bicycle parking sites (such as the campus entrance, community entrance, stations, terminals, attractions, bustling commercial district, bus docking at the subway station exit, bus transfer points, etc.), each of the 20 rental points placed around the bike the public can use for free or pay a small rent within a certain time, so that the public can facilitate low-carbon travel, to fitness, urban traffic flow and reduce environmental pollution. Urban public bike rental points in general should be 2 times the bus station.
     With the continuous development of technology, people regard the bicycle and increasing investment in research on issues of public safety bicycle more and more attention. This paper describes a microcontroller-based STC89C52 intelligent public bicycle lock Design. The hardware of the system using radio frequency technology RFID control module locks using an electromagnetic locks, solenoid control the public through the control circuit card to unlock the bike, in order to check whether the car locks in place, increasing the limit switch sensing circuit module. Keil software section allows the preparation of the system program.
Key words: lock device； wireless radio frequency； electromagnetic lock ；switch detection in place 
 

目  录
摘 要    I
Abstract    II
第一章 绪论    1
1.1课题简介    1
1.2研究现状    1
1.3研究内容    2
1.4研究意义    2
第二章 系统总体设计    4
2.1总体框架    4
2.2设计原则    5
第三章 硬件设计    6
3.1 RFID模块....................................................6
3.1.1  RFID技术介绍、发展和特点    6
3.1.2  RFID技术的基本工作原理    8
3.1.3RFID产品分类    8
3.2   STC89C52单片机    9
3.2.1    工作原理及技术指标    9
3.2.2     STC89C52单片机核心主电路图    10
3.2.3  STC89C52单片机引脚功能说明    10
3.3  电磁铁控制模块    12
3.3.1 电磁锁简介    12
3.3.2电磁铁控制电路    12
3.3.3到位开关检测电路    13
3.4  电源模块    14
第四章  相关软件设计    15
4.1 软件设计流程图    15
4.2 Keil C简介及编程    15
4.2.1 Keil C简介    15
4.3.2 Keil C编程    16
第五章 总结    26
参考文献    27
致  谢    29