摘要
为了降低灌溉自动控制系统的成本,增强其实用性,研究设计了一种基于Mega16的灌溉自动控制系统。在3种质地不同的土壤中,对自制的基于电导原理的土壤水分传感器进行了标定试验。结果表明,在同一土壤类型和同样的耕作条件下,土壤的含盐量保持基本不变,土壤的电导率和土壤的体积含水率之间近似成线性关系。该灌溉自动控制系统能实时监测土壤水分,并进行及时和足量的灌溉。
In order to reduce the cost of automatic spraying irrigation system and strengthen it practicability, a automatic spraying irrigation system based on Mega16 is designed . The home-made soil moisture sensor based on electrical conductivity was made assignment test in three different textured soilo The results showed that the relation between soil water content and soil electrical conductivity is linear in the same soil types and tillage when soil salinity was kept invariant; The spraying irrigation automatic control system can monitor soil water icontent in real-time and irrigate in time and full.
出处
《农机化研究》
北大核心
2008年第4期99-101,104,共4页
Journal of Agricultural Mechanization Research
基金
校长基金项目(精量灌溉控制模型研究)(2006)
关键词
农业工程
灌溉自动控制系统
设计
土壤电导
单片机
agricultural engineering
automatic control system of spray irrigation
design
soil electrical conductivity
single-chip computer
