数字式温湿度传感器的应用设计—毕业设计.docVIP

本科毕业设计 数字式温湿度传感器的应用设计 系 别 专业班级 学生姓名 指导教师 提交日期 摘 要 本文介绍了基于单片机系统的数字式温湿度传感器在社会生产和生活中的应用。随着社会发展的日新月异，传感器在人们的生产和生活中的运用也越来越广泛。由于许多场合需要同时使用温度传感器和湿度传感器，因此，作为复合传感器的数字式温湿度传感器被广泛运用于各个领域和行业。本设计主要介绍以AT89C52单片机和SHT71温湿度传感器为基础所组成的系统，实现对温湿度的测量，并且通过制冷片的使用实现对温度的控制，完成各个部件的电路搭设，以及对各组成部分的编程工作。本设计使用了键盘控制和LED数码管显示，体现对应的测控系统的设计方法和手段。针对许多场合都要求对温湿度的控制，本设计以使用制冷片实现对温度的控制为例，体现控制系统的设计方法及应用。软件部分采用的并不是传统的汇编语言编程，而是较为容易和快捷的C语言完成软件编程。 关键词：单片机系统，数字式温湿度传感器，AT89C52，SHT71. Abstract The subject of this article is the application of single-chip microcomputer in production and people’s daily life. As the quick development of our society, Sensor plays a more and more important role in our daily life. As temperature sensor and Humidity sensor are both required on many occasions, Humidity Temperature Sensor, as a compound sensor, are now being used in various fields and industries. The design is mainly focused on introduction of the system which is based on AT89C52 single-chip microcomputer and SHT71 Humidity Temperature Sensor. The system could measure the temperature and humidity, control temperature by the usage of film cooling, finish the electric circuit connection and the programming of each component. The design makes advantage of keyboard control and LED digital pipe to show it. At the same time, it reflects the design method and means of relative control system. To satisfy the need for controlling temperature and humidity, the design uses film cooling to complete it, meanwhile, the design method of the controlling system and its application can be embodied. As for the software part, it doesn’t use the traditional compilation language programming, but use C Language to finish the software programming, which is much easier and quicker. Keyword:single-chip microcomputer,Humidity and Temperature Sensor ,AT89C52, SHT71. 目 录 摘 要 I Abstract II 目 录 III 第一章 绪论 1 1.1选题的背景和意义