文档介绍：基于单片机粮仓温湿度无线监测系统
摘要
温湿度无线监测系统是通过温、湿度传感器对粮仓环境温、湿度信号实时、精确的采集,并通过数字显示出来。再把信号通过单片机和无线通信模块传到终端机实现监控。当粮仓的温湿度超过或低于设置的上下限时,系统发出警报并采取控制措施,让仓库内的温湿度始终稳定在安全温湿度范围内,从而对仓内温湿度实现检测及控制。本设计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;由此简要介绍系统的整个组成和系统工作原理:二是进行智能传感器的硬件电路和软件系统的设计;包括传感器的静动态特征介绍,采用数字传感器检测时序、检测原理、检测电路以及检测系统软件设计。三是单片机及通信接口的硬件电路及软件系统设计;还包括无线通信技术,通信协议,数据收发芯片的介绍。
关键词单片机,数字温湿度传感器,无线通信。
ABSTRACT
Temperature and humidity wireless monitoring system is through the temperature, humidity sensor on the granary environment temperature, humidity signal in real time, accurate collection, and through the digital display. Then the signal through the single chip and munication module to realize the monitor terminal. When the temperature and humidity of granary is above or below the setting of limits, alarm and control measures, make the temperature and humidity in the warehouse has stabilized at safe temperature and humidity range, so as to realize the detection and control of temperature and humidity in the warehouse. This design mainly do the following aspects of work: The first is to determine the system's overall design scheme; the entire ponents and work principle of the system is introduced briefly: The second is hardware circuit and software design of intelligent sensor; including static and dynamic characteristics of the sensor, the digital sensor detection time, detection principle, detection circuit and system software design. The third is the hardware circuit and software design of single puter munication interface; also includes a munication technology, communication protocol, data transceiver chip introduction.
Keywords:Single chip puter, digital temperature and humidity sensor, munication.
目录
摘要 I
ABSTRACT II
1 绪论 1
1
1
2 系统的总体设计方案 3
3
3
3
无线通信技术的选择 4
3 系统硬件电路的设计 7
7
7
8
11
、晶振电路、复位电路、显示电路 15
16
NRF24L01芯片概述 16