基于单片机的恒温系统的设计.docx

摘要 PAGE II 题目:基于单片机的恒温系统的设计  摘 要 在疫情大肆传播的当下，温度的测量成为了检测人体是否健康的必要操作，除此之外，在日常生活中也存在很多场合需要进行温度的测量，如各类生产车间环境温度、植物种植环境场所等，因此，需要一款多功能数字温度计来进行温度的测量并在不符合系统条件时启动报警和相应操作。 本文针对所有需要进行温度检测的场合设计了一套基于单片机的温度检测方案，并进行了模拟仿真，在系统设计方案中为了兼容更多应用场合，系统在设计时分别考虑到了上下阈值的设置，并且在超过或低于设定阈值时进行报警同时执行不同的操作。系统通过按键可对阈值进行设置，通过数码管来进行温度和阈值的显示。 本次设计使用了AT89C51单片机为核心的温度控制系统的设计方法和工作原理，温度信号是由DS18B20进行采集，并以数字信号的方式传送给单片机，单片机通过对信号进行处理，从而实现温度控制的目的，最后通过程序编写将仿真电路运行起来，分别对按键、显示和报警功能等功能进行测试，通过测试结果可以看出，本文设计的系统完全符合设计要求，并且可应用于多种场合。 关键词：温度检测；单片机；数码管；阈值设置 ABSTRACT Abstract In the current rampant spread of the epidemic, temperature measurement has become a necessary operation to detect whether the human body is healthy. In addition, there are many occasions to measure the temperature in daily life, such as the environmental temperature of various production workshops, plant planting environment, etc. Therefore, A multifunctional digital thermometer is required to measure the temperature and start the alarm and corresponding operation when the system conditions are not met. All need to test the temperature, the author of this paper designed a set of temperature detection scheme based on single chip microcomputer, and the simulation was carried out, in the system design in order to compatible with more applications, systems were considered in the design of upper and lower threshold Settings, and in more or less set threshold for alarm and perform different operations. The system can set the threshold through the key, and display the temperature and threshold through the digital tube. This design uses the design method and working principle of the temperature control system with AT89C51 as the core. The temperature signal is collected by DS18B20 and transmitted to the single chip microcomputer in the form of digital signal. The single chip microcomputer processes the signal, so as to achieve the purpose of temperature control. Finally,