2012毕业设计--基于单片机的粮仓温湿度控制系统设计

基于单片机的粮仓温湿度控制系统设计

Abstract : The paper develops a temperature and humidity controlling system for grain depot .The system is based on a chip microprocessor AT89S52,uses one-line type digitaltemperature sensor DS18B20 and the capacitance humidity sensor HS1100/HS1101 to collect humiture data,realizes the collecting of remote data as well as the setting of measuring and controlling order parameter.The system has the following advantages:its interface is friendly,it is controlled easily,its hardware system is integrated highly,the circuitry is simple,its

function is strong,it has good performance,the cost is lower and so on.The system settles many defects of traditional humiture testing equipments as well as manual dewetting and cooling.Meanwhile,the system realizes the measuring and controlling of multiple-point humiture parameters.

Keywords: AT89S52;DS18B20;HS1100/HS1101;PC;

personal digital assistant(PDA)

目录

1.系统功能说明 .......................................................... 1

2.系统总体设计 .......................................................... 1

2.1.系统硬件结构设计 ..................................................................................................... 1

2.2.通信方案选择 ............................................................................................................. 1

3.系统硬件设计 .......................................................... 2