农业工程学报2017，Vol.33Issue(2)：32-40,9.DOI:10.11975/j.issn.1002-6819.2017.02.005
小麦播种实时监控系统设计与试验
Design and experiment on real-time monitoring system of wheat seeding
摘要
Abstract
To monitor wheat planting performance on real time, a real-time monitoring system of wheat planting performance based on CAN bus was designed. The general structure of the system was elaborate, the hardware and software of the system was designed and the field experiment was conducted. The system included sensor unit for signal collecting, monitoring module, Controller Area Network (CAN) module and terminal, and could monitor the status of seed tube, working speed, rotation velocity of seed shaft. Photoelectric sensor was used to convert quantities of seed tube status into voltage signals, and hall sensor was used to convert quantities of wheel axis rotation velocity into pulse signals. Monitoring module judge the status of seed tube (normal, blocked and missing), and calculate the rotation velocity of wheel axis and seed shaft based on the signals output by sensors. At the same time, monitoring module calculate working speed according to the rotation velocity of wheel axis information. Then the information obtained by monitoring module was uploaded to terminal by CAN bus and displayed on real time on the terminal. The result of the experiment showed that there was no false alarm at the working speed of 10 km/h, the monitoring accuracy of seed tube fault status was >98%, blocked alarm response time <0.2 s, missing alarm response time <0.5 s. The system worked reliably and had a strong ability to anti-dusting and anti-vibration, and effectively monitored wheat planting performance.关键词
传感器/设计/农作物/小麦播种/实时监测系统/光电传感器/种管状态/前进速度Key words
sensors/design/crops/wheat planting/real-time monitoring system/photoelectric sensor/seed tube status/working speed分类
农业科技引用本文复制引用
卢彩云,付卫强,赵春江,梅鹤波,孟志军,董建军,高娜娜,王秀,李立伟..小麦播种实时监控系统设计与试验[J].农业工程学报,2017,33(2):32-40,9.基金项目
National High-Tech Research and Development Program of China (863)(2013AA102308) （863）
National Key Research and Development Plan (2016YFD0200607) （2016YFD0200607）
Anhui Science and Technology Major Project (15czz03134) （15czz03134）
Postdoctoral Science Foundation of Beijing Academy of Agriculture and Forestry Sciences of China (2014002) （2014002）
