农机化研究2025，Vol.47Issue(5)：94-101,8.DOI:10.13427/j.issn.1003-188X.2025.05.014
基于STM32的小麦籽粒含水率在线检测系统设计
Design of Online Detection System of Wheat Grain Moisture Content Based on STM32
摘要
Abstract
In order to meet the requirements of online detection of wheat moisture content in combine harvester,an online detection system of wheat grain moisture content based on STM32 was designed.The detection system used the STM32F103RCT6 embedded chip as the hardware development platform,and used the ipsilateral circular arc capacitive moisture content detection sensor as the acquisition terminal.After the circuit was processed with the STM32 microcon-troller,the data collected by RS485 was sent to the cloud server through 4G for data interaction.It realized wireless long-distance data transmission of serial port devices,and then realized remote data communication management,with good man-machine interaction.The results of the bench verification test showed that:the maximum absolute error of moisture content detection was 0.87％,the minimum absolute error was 0.07％,and the average absolute error was 0.29％.The relative error values were all less than 10％,and the average relative error was 4.7％,R2=0.968 5,which could meet the requirements of online detection of grain moisture content of the combine harvester.关键词
小麦籽粒/联合收获机/含水率/在线检测/STM32/同侧圆弧电容器Key words
wheat grain/combine harvester/moisture content/online detection/STM32/ipsilateral circular arc capaci-tor分类
农业科技引用本文复制引用
姬虹,李康,宋东方,王万章,李保谦,冯伟..基于STM32的小麦籽粒含水率在线检测系统设计[J].农机化研究,2025,47(5):94-101,8.基金项目
中央引导地方科技发展资金项目(Z20221341068) （Z20221341068）
郑州市科技惠民计划项目(2022KJHM0045) （2022KJHM0045）
河南省科技厅科技攻关项目(242102110359) （242102110359）
河南省科技厅重点软科学项目(242400411017) （242400411017）
