面向智慧农业的叶片传感单元设计与研究  

Design and Research of Leaf Sensing Unit for Smart Agriculture

作　　者：王新悦 周明[1] 李浩[1] 周晨阳 WANG Xinyue;ZHOU Ming;LI Hao;ZHOU Chenyang(Yangtze Delta Region Academy of Beijing Institute of Technology,Jiaxing,Jiaxing Zhejiang,314019;Stony Brook Institute at Anhui University,Hefei,230039)

机构地区：[1]北京理工大学长三角研究院(嘉兴),浙江嘉兴314019 [2]安徽大学纽约石溪学院,合肥230039

出　　处：《微处理机》2024年第6期52-57,共6页Microprocessors

摘　　要：为应对智慧农业快速发展对传统传感技术在集成度、成本及工作性能等方面的全方位挑战,更好地监测叶片温度,设计一套基于后向散射的射频识别系统。通过分析植物叶片温度调节的生理机制,设计相应的温度传感单元。深入研究散射面结构及工作原理,提出具体的结构设计方案,并利用仿真分析验证设计的可行性,重点考察了添加温敏材料后散射面的性能特征。在系统测试中,完成了阅读器天线的设计与制作,分别在空旷环境和实际植物叶片表面进行了测试验证。通过实验,成功验证了所设计散射面传感单元的谐振特性。研究为植物生理状态监测提供了一种新型无源传感方案,具有较好的应用前景。To address the comprehensive challenges posed by the rapid development of smart agriculture to traditional sensing technologies in terms of integration,cost,and performance,and to better monitor leaf temperature,a radio frequency identification system based on backscattering is designed.Through analyzing the physiological mechanism of plant leaf temperature regulation,corresponding temperature sensing units are designed.The structure and working principle of the scattering surface are thoroughly studied,and specific structural design schemes are proposed.The feasibility of the design is verified through simulation analysis,with particular focus on examining the performance characteristics of the scattering surface after adding temperature-sensitive materials.In system testing,the reader antenna design and fabrication were completed,and tests were conducted in both open environments and on actual plant leaf surfaces.Through experiments,the resonance characteristics of the designed scattering surface sensing unit were successfully verified.This research provides a new type of passive sensing solution for monitoring plant physiological status,showing promising application prospects.

关 键 词：射频识别 散射面 变极化 阅读器天线 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] S126[自动化与计算机技术—控制科学与工程]