作　　者： ; ; ; ; ; ;

机构地区： 华南农业大学工程学院南方农业机械与装备关键技术省部共建教育部重点实验室

出　　处： 《农机化研究》 2013年第7期139-144,共6页

摘　　要： 基于嵌入式系统与总线技术设计了轮灌控制系统。轮灌总控制器和分控制器用RS-485总线连接。总控制器由STM32F103VET6微处理器,LCD、按键、MAX3075总线驱动器、MC551 GPRS通讯模块组成;分控制器由STM8L151K4微控制器、L9110S电磁阀驱动芯片、模式配置跳线和EC-5土壤水分传感器接口组成。基于对象总控制器嵌入式完成人机界面设计,并据芯片出厂序列号为分控制器分配通信地址,采用低功耗设计降低系统整体功耗。人机界面、远程服监控与轮灌控制试验表明:轮灌控制系统人机界面响应迟滞时间小于50ms,GPRS通信误码率低于10%。灌溉试验表明,轮灌控制器能够满足定时、分区灌溉的要求。 This paper described an automatic rotational irrigation system for orchard irrigation application based on embedded real time system and bus expansion technology.This system contains a master controller and several slave valve monitor connected via standard RS-485 bus.On hardware,the master controller contained a STM32F103VET6 microcontroller,LCD module,user keys,MAX3075 bus driver and MC55i GPRS module.Slave valve monitor contained STM8L151K4 microcontroller,L9110S valve driver and EC-5 soil moisture interface.This paper also introduced an object-oriented method for designing LCD based real time system and user interface and slave valve monitor address allocation strategy based on STM32 unique ID.Low power design method was suggested to reduce the whole system power consumption.The test in the orchard show that the rotation irrigation system show that,the response time for user interface was less than 100ms,GPRS packet loss rate was lower than 10%,and satisfied the requirement of orchard rotation irrigation.

关 键 词： 自动灌溉 控制系统 总线 轮灌 地址分配

领　　域： [自动化与计算机技术] [自动化与计算机技术]