基于STM32的植物电信号采集系统的设计与应用  

Design and Application of Plant Electrical Signal Acquisition System Based on STM32

作　　者：孙政波 谭峰 田芳明 辛元明 高嘉欣 Sun Zhengbo;Tan Feng;Tian Fangming;Xin Yuanming;Gao Jiaxin(College of Electrical and Information,Heilongjiang Bayi Agricultural University,Daqing 163319,China)

机构地区：[1]黑龙江八一农垦大学电气与信息学院,黑龙江大庆163319

出　　处：《农机化研究》2022年第9期108-114,共7页Journal of Agricultural Mechanization Research

基　　金：黑龙江省自然科学基金重点项目(ZD2019F002);黑龙江省农垦总局科技计划项目(HKKYZD190801);黑龙江八一农垦大学博士科研启动基金项目(XDB201814);黑龙江八一农垦大学三横三纵支持计划项目(ZRCPY202015)。

摘　　要：基于植物电信号微弱、低频、易受干扰等特性,对便携式植物电信号采集系统进行探究,通过仿真和实际电路测试,设计了一套精度到达μV级水平且稳定性、准确性与可靠性兼具的植物电信号的采集系统。系统以氯化银医用贴片电极为探头,将采集到的植物电信号经信号调理电路后存储到SD卡或通过RS485实现与PC的无线传输,经过对鹅掌柴幼苗的采集试验验证,该设备性能符合植物电信号的采集要求,对于植物电信号的进一步研究具有一定的实用价值。In this study,the portable plant electric signal acquisition system was explored based on the characteristics of weak plant electric signal,low frequency and easy interference,etc.Through simulation and practical circuit test,a set of plant electric signal acquisition system with accuracy up toμV level and stability,accuracy and reliability was designed.This system uses the silver chloride medical patch electrode as the probe,and stores the collected plant electrical signal through the signal conditioning circuit to the SD card or realizes the wireless transmission with the PC through RS485,after acquisition of the schefflera seedling test,the equipment performance conform to the requirements of the plant electrical signal collection,for the further research of the plant electrical signal has a certain practical value.

关 键 词：植物电信号 STM32 信号调理模块 采集系统 

分 类 号：S126[农业科学—农业基础科学] TP202[自动化与计算机技术—检测技术与自动化装置]