基于STM8微处理器的太阳能土壤水分测量仪设计
Design of Solar Soil Moisture Measuring Instrument Based on STM8 Microprocessor
吴奇 1浦绍选1
作者信息
- 1. 云南师范大学太阳能研究所,云南省农村能源工程重点实验室,云南昆明650500
- 折叠
摘要
土壤的水分含量对植物的生长非常重要,检测土壤含水量也是自动灌溉系统中关键的一环.为了能够连续检测土壤的含水量,基于STM8微处理器,采用频域反射(FDR)原理,利用太阳能供电,实现硬、软件的组合,设计制作了一款便携式土壤水分测量仪.选用不同的土壤对该设计进行多组实验,对比可知,测量仪的测试结果与烘干法测出的含水量较为接近,误差在3％以内.
Abstract
The moisture content of the soil is very important for the growth of plants.Detecting soil moisture is a key in automatic irrigation system.In order to continuously measure the soil moisture content,STM8 microprocessor and FDR (frequency domain reflectometry) principle were adopted.With solar energy power supply,a portable soil moisture measuring instrument was designed and made with hardware and software.Multigroup experiment was carried by different soils.Comparative results showed that detection result of this device was relatively close to those by the drying method,with less than 3％ of enor.
关键词
土壤水分检测/STM8/太阳能/频域反射原理Key words
Soil moisture content detecting/STM8/Solar energy/FDR引用本文复制引用
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据