联合收获机多传感器信号采集与数据处理系统

多传感器信号采集与数据处理是联合收获机作业流程监测与控制的基础工作。使用微处理器C8051F020的定时器/计数器和标准输入/输出接口（I/O）进行了多路霍尔转速传感器信号的采集,并通过串口通信接收损失量传感器与喂入量传感器的数据。微处理器C8051F020对数据进行处理与存储,控制240×128点阵式液晶显示器进行数据的实时显示与故障报警,根据数据处理结果控制联合收获机前进速度,进行故障分类处理,并通过串口通信实现存储数据的发送与打印。试验表明,系统工作稳定、可靠, 可以实现联合收获机作业流程监测与控制系统的集成化,并能在联合收获机测控系统的应用中节约成本、增加效率。

Multi-sensor Signals Acquisition and Data Processing System for Combine Harvester

Multi-sensor signals acquisition and data processing is the basis for combine harvester workflow control and monitoring. In this paper, the multi-hall speed sensor signal acquisition was implemented by timer/counter and standard input/output interface (I/O) in microprocessor C8051F020, and feed quantity sensor data and loss quantity sensor data was received through the serial communication. Microprocessor C8051F020 can process and save data, control the 240×128 dot-matrix LCD that could display the current data and fault alarm, and control speed depend on the results of data processing, then deal with classified faults. The data acquisition could be send and print. The experimental result showed this system worked steadily and reliably, which could realize the integration of combine harvester workflow control and monitoring system, and it could save the production cost and increase efficiency for combine harvester measure and control system.