基于RFID的新型农业土壤水分和盐度传感器设计  

A RFID-based Design of Soil Moisture and Salinity Sensor of Precision Agriculture

作　　者：黄晓艳[1] HUANG Xiaoyan(College of Artificial Intelligence,Chongqing Creation Vocational College,Chongqing 402160,China)

机构地区：[1]重庆科创职业学院人工智能学院,重庆402160

出　　处：《顺德职业技术学院学报》2022年第4期38-41,共4页Journal of Shunde Polytechnic

基　　金：重庆市教育委员会科学技术研究项目(KJQN202105403)。

摘　　要：设计和分析一种用于土壤水分和盐度检测的廉价新型RFID传感器。在UHF上设计的RFID波段,可以很容易调整到核心芯片。同时还模拟不同湿度和盐度水平的土壤理论模型,用自制的样机测量沙质土壤中水分和盐度的变化。模拟结果和实测结果均在非盐水条件下显示,传感器共振频率随含水率变化而变化。如果土壤含盐,共振振幅随着盐度的增加而降低,并表现出与含水量无关,没有频率变化。This paper focuses on the design and analysis of an inexpensive novel RFID sensor for soil moisture and salinity content detection.The sensor is designed at the UHF RFID band so that it can be tweaked easily to a chip-based RFID sensor.Together with the designed sensor,a theoretical soil model with different moisture and salinity levels is simulated.A fabricated prototype is used to measure the variation of moisture and salinity levels in sandy soil.Both the simulated and measured results show frequency shift of sensor resonance with moisture content variation at non-saline conditions.However,if the soil is saline,the resonance amplitude gets reduced with increased salinity levels while exhibits moisture content independence and hence no frequency variation.

关 键 词：RFID 土壤盐分 新型农业 传感器 

分 类 号：S152.7[农业科学—土壤学]