基于单片机的温湿度检测系统的设计

摘要：现代农业生产离不开环境控制，本文在对国内外温室智能控制进行深入分析的基础上，针对温室智能化控制存在的诸多因子，将智能传感器监测和单片机控制相结合，提出了基于单片机的温湿度检测系统设计方案。
本系统采用层次化、模块化设计，整个系统由数据采集系统、单片机控制系统、计算机监控系统组成。系统以单片机为核心，以多个温度、湿度传感器作为测量元件，通过单片机与智能传感器相连，采集并存储智能传感器的测量数据。
本文给出了一种基于单片机的温湿度检测的系统设计方案，主要做了如下几方面的工作:一是确定系统的总体设计方案。包括系统要完成的设计功能，达到的技术指标，系统的设计原则；二是进行智能传感器的硬件电路和软件系统的设计；三是单片机及通信接口的硬件电路及软件系统设计。
关键词：AT89S51；DS18B20；HIH-3610；MMC(Multi Media Card)；总线技术

The Design Detecting Temperature and Humidity Based On The AT89S51
 
Abstract: Modern agricultural production is inseparable from the environmental control in the light of the causes of greenhouse intelligent control, based on thorough analysis about our national and abroad greenhouse intelligent control, combining intelligent sensors test with mcu control. This thesis proposes a design scheme on mcu temperature and humidity testing system.
     This system adopts hierarchical, modular design. It consists of data acquisition system, mcu control system, computer monitoring system, and centers around the mcu, with many temperature, humidity sensors as measurement components. It collects and stores intelligent sensor measurement data by connecting mcu with intelligent sensors.
This design has mainly done the following several works. First, it establishes the general design of the system including the design function of the system to be completed, the technical specifications to be reached, design principles of the system, and introduces the entire system components and work principle of the systems .Secondly, it design the hardware circuit and software design of intelligent sensors. Thirdly,  it designs hardware circuit of communication interface and software system； The last ,it elaborates the working principle, designing thoughts and realizing methods of computer software system.
Key words: AT89S51,DS18B20,HIH-3610,MMC(Multi Media Card),Bus technology

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