小麦播种实时监控系统设计与试验（英文）

发布时间：2018-06-25 01:26

本文选题：传感器 + 设计　；参考：《农业工程学报》2017年02期

【摘要】：为实现小麦播种作业性能实时监控,设计了一种基于CAN总线的小麦精密播种机播种实时监控系统,阐述了系统总体结构,设计了系统硬件和软件,并进行了田间试验。该系统包括传感器信号采集单元、播种监测模块、CAN模块和播种监测终端,能够实时监测种管状态、机具前进速度和排种轴转速。采用光电传感器和霍尔传感器分别检测排种管落种状态和地轮转速并输出电压或脉冲信号,播种监测模块根据传感器输出的信号,判断排种管播种状态(正常、堵塞和空管),计算出地轮转速和排种轴转速,并计算出机具前进速度,以上信息通过CAN总线传输给播种监测终端并实时显示。试验结果表明,该系统故障状态监测准确率为98%,堵塞响应时间0.2 s,空管报警响应时间0.5 s。系统工作稳定可靠,抗尘、抗震能力强,能够有效监测小麦播种作业性能。该研究成果能满足小麦播种性能实时监测要求,有助于提高小麦播种作业质量。
[Abstract]:In order to realize the real-time monitoring of wheat seeding performance, a wheat precision seeder seeding real-time monitoring system based on can bus is designed. The overall structure of the system, the hardware and software of the system, and the field test are described. The system includes sensor signal acquisition unit, seeding monitoring module can module and seeding monitoring terminal, which can monitor the status of seed tube in real time, advance speed of machine and rotation speed of seeding axis. Photoelectric sensor and Hall sensor are used to detect the seed dropping state of seeding tube and rotation speed of ground wheel and output voltage or pulse signal respectively. The seeding monitoring module judges the seeding state of seeding pipe according to the signal output from the sensor. The speed of ground wheel and the rotation speed of seeding axis are calculated, and the advance speed of the machine is calculated. The above information is transmitted to the seeding monitoring terminal through can bus and displayed in real time. The test results show that the fault state monitoring accuracy of the system is 98, the response time of clogging is 0.2 s, and the response time of air traffic alarm is 0.5 s. The system is stable and reliable, dust-resistant, strong seismic ability, can effectively monitor the performance of wheat seeding. The results can meet the requirement of real-time monitoring of wheat seeding performance and help to improve the quality of wheat seeding operations.
【作者单位】：北京农业智能装备技术研究中心;北京农业信息技术研究中心;
【基金】：National High-Tech Research and Development Program of China(863)(2013AA102308) National Key Research and Development Plan(2016YFD0200607) Anhui Science and Technology Major Project(15czz03134) Postdoctoral Science Foundation of Beijing Academy of Agriculture and Forestry Sciences of China(2014002)
【分类号】：S512.1;S126

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