Design of automatic irrigation system based on FDR theory

ZHANG Rui-qing; GE Zhen-yang; SHAN Wei; YU Ying-jie; LI Hou-chun

doi:10.13873/j.1000-97872014.02.012

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Design of automatic irrigation system based on FDR theory

更新时间：2025-09-11

- Design of automatic irrigation system based on FDR theory
- Vol. 33, Issue 2, Pages: 80-82+86(2014)
- 作者机构：
  
  昆明理工大学现代农业工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872014.02.012
  CLC： S274.2;TP212
- Published：2014
- 稿件说明：
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[1]张瑞卿,戈振扬,单伟,于英杰,李厚春.基于FDR原理的自动灌溉系统设计[J].传感器与微系统,2014,33(02):80-82+86.

ZHANG Rui-qing, GE Zhen-yang, SHAN Wei, et al. Design of automatic irrigation system based on FDR theory[J]. 2014, 33(2): 80-82+86.
[1]张瑞卿,戈振扬,单伟,于英杰,李厚春.基于FDR原理的自动灌溉系统设计[J].传感器与微系统,2014,33(02):80-82+86. DOI： 10.13873/j.1000-97872014.02.012.

ZHANG Rui-qing, GE Zhen-yang, SHAN Wei, et al. Design of automatic irrigation system based on FDR theory[J]. 2014, 33(2): 80-82+86. DOI： 10.13873/j.1000-97872014.02.012.

摘要

利用土壤的介电特性测量土壤含水量是一种快速、简便、可靠的方法。根据频域反射（FDR）法测量原理

电磁波在土壤中的传播频率可用来测试土壤的介电常数

从而得到土壤容积含水率

设计出了一种基于FDR原理的自动灌溉系统

介绍了FDR测量原理

阐述了自动灌溉系统的软硬件构成

土壤水分传感器测得的土壤水分含量信息

经信号处理

输出为0

V电压信号

经A/D转换送至AT89S52单片机进行判断处理

根据输出数值的大小控制电磁阀的通断时间

从而实现自动灌溉和节水灌溉的目的。试验表明:该系统工作稳定

控制准确

反应灵敏

满足自动灌溉要求。

Abstract

It is a rapid

simple and reliable method to measure soil moisture content using dielectric property of soil.Based on the principle of frequency domain reflectometry（FDR）

the soil dielectric constant can be tested by the travel frequency of electromagnetic waves in soil

and the soil volumetric water content will be obtained.A set of an automatic irrigation system is designed based on FDR.The theory of FDR is briefly introduced

the hardware and software components of the automatic irrigation system are explained.The soil water content information measured by the soil moisture sensor converts to 0

5 V voltage signal by signal processing

after analog to digital（A/D） conversion

sent to single chip AT89S52

control on-off time of solenoid valve ac

cording to output value to realize automatic irrigation and water-saving irrigation.Experiment shows that this system is stable

accurate and sensitive

satisfies the requirements of automatic irrigation.

关键词

Keywords

references

基于FDR原理的土壤湿度实时监控灌溉系统 [J]. 韩晨燕,封维忠,施山菁,申斌. 节水灌溉 . 2012(02)

基于真有效值检测的高频电容式土壤水分传感器 [J]. 李加念,洪添胜,冯瑞珏,岳学军,罗瑜清. 农业工程学报 . 2011(08)

一种太阳能供电的土壤水分无线传感器 [J]. 李连骏,孙宇瑞,林剑辉. 江苏大学学报(自然科学版) . 2009(06)

附加电阻法快速测定土壤含水率的试验 [J]. 王晓雷,胡建东,江敏,赵向阳,胡敬芳,赵媛媛. 农业工程学报 . 2009(10)

FDR在高寒草地土壤水分测量中的标定及其应用 [J]. 李元寿,王根绪,程玉菲,王军德,王一博. 干旱区地理 . 2006(04)

土壤含水量测定方法研究进展 [J]. 张学礼,胡振琪,初士立. 土壤通报 . 2005(01)

黄土高原土壤水分的自动监测——TDR系统及其应用 [J]. 伍永秋,刘宝元,ErikvandenElsen,张清春,张岩. 水土保持学报 . 2001(02)

Measurement of Soil Water Content Using a Simplified Impedance Measuring Technique [J] . G.J. Gaskin,J.D. Miller. Journal of Agricultural Engineering Research . 1996 (2)

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