设计简介：
项目名：门禁（实物）
项目编号：mcuclub-dz-331
单片机类型：STC89C52
具体功能：
1、通过RFID进行刷卡进入（两张卡，一张录入ID，一张没有录入），刷有效卡时，门禁打开，刷无效卡是，蜂鸣器报警2s
2、通过DS18B20测量温度，当温度大于设置最大值（初始60），进行蜂鸣器报警，并自动打开门禁
3、通过MQ-2配合ADC0832测量烟雾值，当烟雾值大于设置最大值，进行蜂鸣器报警，并自动打开门禁
4、可通过按键设置各阈值
5、通过CD1602显示屏显示卡是否有效、温度值、烟雾值
总字数：15066
实物链接：点击跳转
仿真链接：点击跳转
设计说明书链接：点击跳转
开题报告链接：点击跳转
答辩PPT链接：点击跳转
基于RFID技术的高校智能门禁系统设计研究
摘 要
随着科技的不断进步和社会的发展，高校作为知识传承和人才培养的重要场所，面临着越来越多的管理和安全挑战。其中，校园门禁系统的设计和研究变得至关重要，以确保校园的安全性、便捷性和智能性。传统的门禁系统已经不能满足现代高校的需求，因此需要更先进、更智能的解决方案。同时，随着火灾和安全问题的不断出现，温度监测和烟雾检测也成为高校门禁系统的重要组成部分。
本研究旨在设计和研究一种基于RFID技术的高校智能门禁系统，采用STC89C52单片机作为控制核心。该系统具有多项重要功能，包括通过RFID卡进行门禁控制、温度监测、烟雾检测以及用户可通过按键设置各种阈值。首先，该门禁系统支持两种RFID卡的使用：一张已录入的有效卡和一张未录入的无效卡。当有效卡刷入时，门禁系统将打开门，允许持卡人进入；而刷入无效卡时，蜂鸣器将发出报警声并保持2秒，同时门禁不会开启，以确保安全性。其次，系统还集成了DS18B20温度传感器，用于监测环境温度。当温度高于预设的最大值（初始值为60摄氏度）时，蜂鸣器会触发报警，并自动开启门禁，以应对可能的火灾或高温情况。此外，MQ-2气体传感器与ADC0832模块合作，用于检测环境中的烟雾浓度。当烟雾浓度超过设置的最大值时，系统将触发蜂鸣器报警并自动开启门禁，以提供火灾警报和安全保护。为了方便用户进行设置，门禁系统还提供了按键，允许用户自定义各种阈值，包括温度和烟雾的最大值。最后，CD1602显示屏用于显示卡的有效性状态、当前温度值以及烟雾值，以便管理员和用户能够实时监控系统状态。
综上所述，基于STC89C52单片机的高校智能门禁系统结合RFID技术、温度监测和烟雾检测，旨在提供更安全的校园入口管理和火灾预警功能。通过用户友好的设置界面，该系统允许管理员轻松配置门禁系统的各种参数，以满足不同的需求和安全标准。
关键词：RFID技术；高校；智能门禁系统；单片机；温度监测；烟雾检测
Abstract
With the continuous advancement of technology and societal development, universities, as crucial institutions for knowledge dissemination and talent cultivation, are facing increasing challenges in terms of management and security. Among these challenges, the design and research of campus access control systems have become critically important to ensure the safety, convenience, and intelligence of university campuses. Traditional access control systems can no longer meet the demands of modern universities, thus necessitating more advanced and intelligent solutions. Additionally, with the ongoing emergence of fire and security issues, temperature monitoring and smoke detection have also become integral components of university access control systems.
This study aims to design and research an intelligent campus access control system based on RFID technology, with the STC89C52 microcontroller as the core control unit. This system encompasses several crucial functions, including RFID card-based access control, temperature monitoring, smoke detection, and the ability for users to set various thresholds through buttons. Firstly, the access control system supports two types of RFID cards: one pre-registered as valid and the other unregistered as invalid. When a valid card is swiped, the access control system opens the door, permitting entry to the cardholder. In the event of an invalid card swipe, the buzzer sounds an alarm for 2 seconds, and the access control remains locked, ensuring security.Secondly, the system integrates the DS18B20 temperature sensor for monitoring environmental temperature. If the temperature exceeds the preset maximum value (initially set at 60 degrees Celsius), the buzzer triggers an alarm and automatically opens the access control, mitigating potential fire or high-temperature situations. Additionally, the MQ-2 gas sensor, in conjunction with the ADC0832 module, is used to detect smoke concentrations in the environment. When the smoke concentration surpasses the set maximum value, the system triggers the buzzer alarm and automatically opens the access control, providing fire alarm and safety protection.To facilitate user configuration, the access control system offers buttons for users to customize various thresholds, including temperature and smoke maximum values. Finally, the CD1602 display screen is employed to show the status of card validity, current temperature readings, and smoke levels, enabling administrators and users to monitor the system’s status in real-time.
In conclusion, the university’s intelligent access control system based on the STC89C52 microcontroller, combined with RFID technology, temperature monitoring, and smoke detection, aims to provide enhanced campus entrance management and fire hazard warnings. Through a user-friendly configuration interface, the system allows administrators to easily adjust various parameters to meet different requirements and safety standards.
Keywords: RFID technology, university, intelligent access control system, microcontroller, temperature monitoring, smoke detection
目 录基于RFID技术的高校智能门禁系统设计研究
摘 要
Abstract
1.绪论
1.1 研究背景及其研究意义
1.2 国内外研究现状
1.3 研究目标
2.系统方案设计
2.1 整体方案设计
2.2 主要器件选型选择
2.2.1 主控芯片方案选择
2.2.2 环境温度检测模块方案选择
2.2.3 烟雾检测模块方案选择
2.2.4 显示模块方案选择
3 硬件电路设计
3.1 单片机最小系统
3.2 环境温度检测模块电路
3.3 烟雾检测模块电路
3.4 RFID刷卡模块电路
3.5 显示模块电路
3.6 继电器模块电路
3.7 独立按键模块电路
3.8 蜂鸣器报警模块电路
4 系统程序设计
4.1 编程软件介绍
4.2 系统主流程设计
4.3 独立按键
4.4 A/D模数转换子流程
4.5 温度检测模块子流程
4.6 LCD1602液晶显示子流程
5 仿真调试
5.1 仿真总体设计
5.2 门禁刷卡测控仿真测试
5.3 门禁温度测控仿真测试
5.4 门禁烟雾测控仿真测试
6 实物调试
6.1 实物总体设计
6.2 门禁刷卡测控实物测试
6.3 门禁温度测控实物测试
6.4 门禁烟雾测控实物测试
总结与展望
参考文献
致谢
附录
附录A：原理图
附录B：PCB
附录C：主程序