基于RS485总线的条播机种肥监测系统  

The Monitoring System of the Drill Based on RS485 Bus

作　　者：周利明[1,2] 苑严伟[2] 董鑫[2] 

机构地区：[1]中国农业大学工学院,北京100083 [2]中国农业机械化科学研究院,北京100083

出　　处：《农机化研究》2014年第6期189-192,共4页Journal of Agricultural Mechanization Research

基　　金：国家高技术研究发展计划项目(2012AA101902);"十二五"国家科技支撑计划项目(2012BAF07B04)

摘　　要：为了解决大型宽幅条播机作业质量监测的问题,开发了一种基于RS485总线的播种机种肥监测系统。该系统采用电容传感器检测种肥管路内物料状态,通过对电容信号的分析处理,进而判断管路阻塞、排空等故障状况。采用RS485总线进行多节点数据传输,便于系统扩展,给出了系统的软硬件设计。田间试验表明,系统对阻塞报警的准确率为100%,对管路排空报警也有较高的准确率,能够满足实际生产需要。A new seed monitoring system was developed based on RS485 bus to improve the seeding quality of large planter.The capacitive sensor was designed to detect the material through state,and the planter failure was recognized by analyzed the capacitive signal.The experiment results showed that the system accuracy for block failure was up to 100%,and the system also had high sensitivity and low rate of false alarm.This system can effectively fit for the actual needs.

关 键 词：条播机 种肥监测 RS485总线 

分 类 号：TP277[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]