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提出了一种基于CAN总线的联合收割机脱粒滚筒测控系统的设计方法。利用LM3S8962芯片构建了各个CAN智能控制节点,并利用CAN总线多主通信的优势,将各个节点采集到的数据传送给上位机,通过上位机的数据处理和判断,实现了联合收割机参数的智能采集和脱粒滚筒的智能化控制。此外,基于Labwindows/CVI设计了相应的上位机监控软件,实现了数据的实时显示和存储,为操作人员提供了友好的人机界面和操作平台。该系统灵活方便、可靠性好、抗干扰能力强、通信速率高,是联合收割机脱粒滚筒关键作业性能数据采集与控制的有效解决方案。
A design method of measuring and controlling system of combine harvester barrel based on CAN bus was proposed. By using the LM3S8962 chip, each CAN intelligent control node is built, and the advantage of multi-master communication of CAN bus is used to transmit the data collected by each node to the host computer. Through the data processing and judgment of the host computer, intelligence of the parameters of the combine harvester Acquisition and threshing cylinder intelligent control. In addition, based on Labwindows / CVI designed the corresponding host computer monitoring software to achieve real-time data display and storage for the operator to provide a friendly man-machine interface and operating platform. The system is flexible and convenient, good reliability, strong anti-interference ability and high communication speed, which is an effective solution to the data acquisition and control of the key workability of the combine harvester threshing drum.