大型仓库网络化智能__温湿度监控系统的设计.docVIP

大型仓库网络化智能 温湿度监控系统设计 院 、 部： 电气与信息工程学院 完成时间： 2013.5.31 摘 要 人类的生存与社会活动都与温湿度紧密相关。伴随着现代化的发展，无论是企业还是事业、无论是医疗卫生还是科研活动都很难找出一个与温湿度无关的领域。所以温湿度的测量成为日常生活最常见的测量活动，在市场上我们到处可见各类温湿度测量仪器，本课题就是一种简单适用的空气温度和湿度的检测仪器，它能精确实时的测量出空气的温度和相对湿度。通过装置上的LCD来实现显示空气的温度和湿度。本设计的产品不但适用于家庭，也适用于温度范围在－30℃～150℃内的所有场合。如：蔬菜生产的温室大棚、仓库等。其具有结构简单、设计花费成本低、适用范围广泛、设计成品容易携带等特点。 利用单片机实现的高精度实用性大型仓库温湿度控制系统，它由AT89C51单片机进行控制，内接封装体积小，由于采用数字式温度传感器，因此具有成本较低、使用简单、工作可靠等优点。 本设计主要由温度、湿度采集、CPU控制、驱动电路、显示等几部分组成，是基于DS18B20、HS1101传感器的温湿度系统并能够完成对两路温湿度的循环检测，及温湿度上下限改变的控制。该设计能够实现温湿度的同时检测，温湿度传感器能够根据外界温湿度的变化将环境值显示在相应的数码管上的功能。温度测量采用了DS18B20温度传感器，具有较高的精度和重复性；湿度测量采用了HS1101电容式相对湿度传感器。而使系统可以方便地实现温度、湿度的实时控制。 关键词：89C51单片机；DS18B20温度传感器；湿度传感器HS1101；显示器LCD；硬件电路 Abstract The survival of the human and social activities are closely related to the humidity and temperature. With the realization of modernization, no matter business or career, health or scientific research are very difficult to find a field which temperature and humidity unrelated to each other. Therefore, measuring the temperature and humidity is the most common measurement in day-to-day life, we can see all kinds of temperature and humidity measurements in the market. The design is a simple application of air temperature and humidity testing apparatus, it can measure air temperature and relative humidity accurately in real-time, through the device of the LCD to display the air temperature and humidity. The design of products are not only apply to the family, but also to the temperature range -30℃ ~ 150 ℃ in all occasions. Such as: the production of greenhouse vegetables, plants and so on. Its advantages are: structure is simple, the design and manufacture is low cost, wide scope of application and the design of portable products etc. The use of single-chip high-precision practical realization of the temperature and humidity control system, which is carried by the control of AT89C51 single chip , w