基于STC12C5410AD单片机的温湿度检测仪毕业设计.doc

前言 PAGE 基于STC12C5410AD单片机的温湿度检测仪 摘 要 温湿度是环境中一个重要的物理参数，人类的生存和社会活动与温湿度密切相关。在生产和生活中的许多场合，不论是仓库管理、图书保存，还是工业生产、居民生活，都对环境中的温湿度有一定的要求，在某些行业中对温湿度的要求更高。因此，对环境中温湿度的检测和控制显得尤为重要，温湿度检测在很多现代科技领域中也成为一项重要技术。 在设计过程中，我们综合参考了国内外同类产品的设计方法。经研究之后，采用了以带有A/D转换器的STC12C5410AD单片机为核心控制器件，采用温度传感器AD590和电容式湿度传感器THS11对环境中的温湿度进行检测，模拟输入接口接入键盘实现人机交换功能，并用LED作为显示器件的硬件设计方案。此外，在通信方面使用RS-232串行数据接口与计算机进行数据传输。软件部分则采用采用模块化的方法将其分成几个部分，然后逐模块设计程序，用汇编语言来实现，最终使各部分结合起来协调工作。 该温湿度检测仪结构简单，并能很好的满足许多环境中对温湿度检测范围和精度的要求。 关键词：STC12C5410AD单片机，传感器，LED，温湿度 MEASURING INSTRUMENT FOR HUMIDITY BASEED ON STC12C5410AD MICROCONTROLLER ABSTRACT The humiture is an important physics parameter of environment, human beings survival and public activities go hand in hand with the humiture. many situations that are in the production and the life, not only warehouse management, preservation of books, but also industrial production, residents life, all have certain request to the humiture of the environment, some professions have higher requirements. Therefore，it appears very important to examination and control the humiture of the environment, and humiture detecting becomes an important technology in many modern science and technology fields. In the whole design process, we have synthesized referred to the domestic and foreign similar products design method. After research, we adopt such a design plan: take the STC12C5410AD microcontroller which included A/D converter as the core control component, adopt temperature sensor AD590 and dyadic capacitance humidity sensor THS11 to give a test to humiture, and use LED to be the display component. In addition, we used the RS-232 serial data connection in the serial communication aspect. That then, the software part adopt modularized method, that is to divide the person into several parts, and then chase the module field using assembly language layout procedure, makes every part harmonize a job combining with getting up ultimately. That instrument structure is simple, and can satisfy the request o