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1、毕业论文（设计）I毕业论文（设计）毕业论文（设计）题目：题目：基于单片机的恒温水箱控制系统的软件设计基于单片机的恒温水箱控制系统的软件设计摘要摘要近年来随着计算机在社会领域的渗透，单片机的应用正在不断地走向深入，同时带动传统控制检测日新月益更新。在实时检测和自动控制的.单片机应用系统中，单片机往往是作为一个核心部件来使用，仅由单片机方面简单的控制已经能满足市场要求，这就要求软硬件结合设计更加智能化、人性化。本设计采用新型单片机 STC12C5A60S2 以及高灵敏度的 DS18B20 和液位传感器 LM1042 对水箱温度和液位进行实时测量，由单片机内集成的 10 位 A/D 进行模数转换，从
2、而实现实时监测、实时控制、实时显示及越限报警等功能。系统硬件由主机、电源、按键及显示、控温执行和串行日通信等部分组成；软件由主程序、温度检侧转换、温度控制等模块组成。系统通过按键切换实现实际温度和设定温度在数码管中的显示和更改。实验结果表明，该系统检测精度高、反应快，具有一定应用价值。关键字：关键字：水温自动控制；A/D 转换；DS18B20；LM1024毕业论文（设计）IIThe software designer ofConstant temperature water tank control system Abstract which based on SCMAbstractIn re
3、cent years, with the penetration of computers in the social field, the application of the SCM is constantly deepening the same time promote the traditional control testing day by day benefits update. In real-time detection and automatic control of microcomputer application system, the microcontrolle
4、r is often a core component to use only simple control by the SCM has been able to meet the market requirements, which requires a combination of hardware and software design more intelligent and humane.This design used the new type of single-chip STC12C5A60S2, the high sensitive of DS18B20 and liqui
5、d level sensor LM1042 to carry out the real-time measurement of the water tanks temperature and liquid level.It carried out the analog to digital conversion by the integrated 10 bit A / D of microcontroller. In order to achieve the functions of real-time monitoring, real-time control, real-time disp
6、lay and limit alarm. The systems hardware composed by the host, power supplying, keypad ,displaying, temperature control implementation and serial communications parts. The software consisted of the main program, the temperature detection and conversion, temperature control module.The system achieve
7、d the displaying and changing of the actual temperature and the setting temperature in the digital tube through the key switch. The experimental results showed that the system detected a high precision, fast response, and had a certain application value. Keywords: water temperature automatic control
8、A / D conversionthe DS18B20LM1024毕业论文（设计）III目录第一章引言.2第二章系统总体设计.22.1 设计目的和任务.22.2 系统设计总体方案.22.3 软件总体设计.2第三章硬件系统介绍.23.1 单片机介绍.23.1.1 STC12C5A60S2 主要性能和功能特性.23.1.2 基于 STC12C5A60S2 的最小应用系统.23.2 键盘设计.23.3 数码管及指示灯显示.23.4 温度检测设计.23.5 液位检测设计.23.6 报警电路设计.23.7 继电器控制设计.2第四章系统软件设计.24.1 键盘程序设计.24.2 数码管及指示灯显示程序设计.24.3 温度检测程序设计.24.3.1 DS18B20 指令.24.3.2 DS18B20 程序设计.24.4 液位检测程序设计.24.4.1 LM1042 检测设计.24.4.2 A/D 转换设计.24.4.3 工作时序设计.24.4.4 流程图及程序.
