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1、长沙航空职业技术学院2022届毕业设计（论文）（2022届）基于单片机的保险箱报警器的设计与制作 学 院、系： 航空电子电气工程系 专 业： 应用电子技术 学 生 姓名： xxxx 班 级：电子x 学号 xxxxxx 指导教师名： xxxx 职称 摘要随着人民生活水平日益提高科学技术的不断发展，人们对财产以及资料的安全保密要求也在不断的提高，设计出一款拥有较高的安全性能的保险箱已成从事电子行业人员的一项重要任务，保险箱的设计应该改进以往的设计思路，增加多项功能使其更安全更人性化，为满足人们对保险箱的使用要求，增加其安全性，用密码代替钥匙，并且增加报警功能的保险箱应运而生。电子密码装置无论在技术
2、上还是在性能上都有了大大的提高，从而使保险装置的安全性、可靠性得到大幅度的提高、应用日益广泛，人民对保险装置的需求得到满足。核心处理模块是电子密码锁工作的核心，它不仅要对密码锁的信息进行处理，还要负责调度各种程序稳定的运行并控制其他模块，其模块主要由单片机，键盘，存储器，显示电路组成。其中，单片机是核心处理模块的核心部分，其主要任务是配合软件来完成信息处理和记录、控制调度其他部分正常工作、电器的控制、密码校对和修改等工作。从电子密码锁功能的需要、性价比、程序的数据量和接口电路等多方面综合考虑，本文选用ATMEL公司的AT89S51单片机作为控制器的核心。键盘电路的设计采用44行列键盘的形式，直
3、接由AT89S52的接口的高、低字节构成。电子保险箱报警器采用AT89C51单片机控制、AT24C02存储、1602液晶显示，44矩阵键盘输入密码。该保险箱报警器由于是由AT89S51芯片作为CPU因此可以采用编写程序的方法使得该报警器具有智能化、人性化、再具体设计各个功能单元、CPU模块、检测模块、报警模块、过程大概如下检测环境亮度、当环境亮度变化时继续检测密码输入的情况、如果没有输入正确的密码而此时报警电路发出报警声提示有被盗危险、由于考虑到实际情况的复杂还加有震动报警模块防止盗贼用暴力的方式开启保险箱、当CPU检测到超过一定强度的震动就立即发出报警提示、从该装置的设计与制作过程完全符合分
4、析、该保险箱报警器具有安全性高、成本低、功耗低、易操作等优点。关键字：AT89S51 LCD1602 检测模块 报警模块AbstractAs peoples living standards are improving the continuous development of science and technology, peoples property and the security and confidentiality of information requirements are also constantly improve, designed with a higher sa
5、fety performance safe has become engaged in the electronics industry professionals is an important task, safe design should be improved the previous design thinking, increase the number of function to make it safer and more humane, to meet people on the safe use of requirements, increase its securit
6、y, password instead of keys, and increase the safe emerge as the times require alarm function. Electronic cipher device both in technical or performance has been greatly improved, so that the safety device safety, reliability is greatly improved, application is increasingly wide, people on the insur
7、ance device needs are met. The core processing module is the core of electronic cipher lock, it not only to the locks of the information processing, but also is responsible for scheduling various procedures for stable operation and control of the other module, the module is composed of a single-chip
8、 microcomputer, keyboard, memory, display circuit. One, single chip is the core processing module is the core part, its main task is to cooperate with software to perform the information processing and recording, control other normal operation, electrical control, password check and modification wor
9、k. From the electronic password lock function needs, cost-effective, program data and interface circuit and other aspects into consideration, this paper chooses ATMEL company AT89S51 MCU as the core of the controller. Keyboard circuit design using4x 4ranks in the form of a keyboard, directly from th
10、e AT89S51interface of high, low byte. Electronic safe alarm controlled by AT89C51, AT24C02 storage,1602 LCD,4 x4 matrix keyboard input password. The safe alarm as it is from AT89S51chip as CPU so we can use programming method makes the alarm has the intelligent, humane, and the specific design of ea
11、ch function unit, CPU module, detection module, alarm module, it follows the detection environment, when the environment brightness brightness change continues to detect the password input case, if not to enter the correct password and the alarm circuit to send out alarm sound prompts the risk of th
12、eft, considering the actual situation of the complicated with shock alarm module to prevent thieves using violent means to open the safe, when CPU detects more than a certain strength of the shock immediately issued a warning, from which the device design and production process with the analysis, th
13、e safe alarm has high safety, low cost, low power consumption, easy to operate.Keyword: AT89S51、 LCD1602、 detection module、 a larm module目录第一章、系统的硬件设计- 7 -1.1 硬件系统的总体结构图- 7 -1.2 AT89S51的介绍- 7 -1.3 硬件系统组成- 7 -1.4微处理器模块：- 8 -1.5 记忆模块：- 8 -1.6 声光提示模块：- 8 -1.7显示模块：- 8 -1.8 键盘模块：- 8 - 第二章、单元模块电路- 8 -2.1
14、44矩阵键盘- 8 -2.2 复位电路- 9 -2.3 振荡电路- 10 -2.4 发光二极管LED电路- 10 -2.5 报警电路- 11 -2.6 电源输入电路- 11 -2.7 AT24C02存储电路- 12 -2.8 LCD12864显示电路- 13 - 2. 9检测电路.14-2.10震动模块：.- 15-2.11 电路板的绘制于生产- 17 -第三章、软件程序设计- 17 -3.1 软件总设计流程图- 18 -3.2 44矩阵键盘扫描程序- 18 -3.3 显示子程序- 21 -3.4 密码修改子程序- 21 -3.5 读/写AT24C02子程序- 21 -附录1 PCB原理图- 24 -附录2 PCB板图- 27 -附录3 PCB 3D效果图- 29 -附录3 产品实物图- 29 -附录4 元件清单.- 31 -结论.-30-致谢.- 31-参考文献- 26 -第一章 系统的硬件设计1.1 硬件系统的总体结构图该保险箱报警器的硬件组成部分可分为CPU模块、电源模块、键盘输入模块、及检测模块、具体组成如下图所示：
