摘要：伴随着社会的发展跟人口的不断增加，人们对于粮食的需求也是与日俱增，当然粮食的种植规模也是不断变大，所以就需要采用联合收割机对农作物进行收割。但是由于目前的收割机自动化与智能化的程度较低，所以就大大的增加了人们的劳动量以及对于农作物的损失量。为了提高收割机的自动化智能化程度，所以收割机信息集成系统的设计就显得尤为重要。

本系统由数据采集模块、通信模块、控制模块、以及显示模块四部分构成。硬件部分主要由交换机、触摸屏、以及PLC和步进电机驱动器组成。实现了（1）对于触摸屏界面的设计，使其显示界面，登录界面以及功能选择界面都能够很好的运行（2）对收割机工作状态的采集，并且能在触摸屏上进行显示。（3）通过触摸屏发出指令然后通过PLC对收割机进行控制，进而改变收割机的工作速度跟工作状态。本方案的具体实施方案如下：

（1）查阅资料，了解了收割机信息集成系统设计的技术要求以及研究现状。

（2）设计了触摸屏的人机交互界面，设计了传感器信号的调理电路，对于主要的采集模块与控制模块进行了选型。

（3）设计了触摸屏界面和编辑了界面的驱动程序，编写了PLC的控制程序。

关键词：PLC;触摸屏；收割机；控制与显示。

Abstract：With the development of society and the increasing population, people's demand for food is increasing, of course, the scale of grain cultivation is constantly changing, so you need to use the combine harvester to harvest crops.However, due to the current level of automation and intelligence is low, so greatly increased the amount of people's labor and the loss of crops.In order to improve the automation of the harvester intelligence level, so the harvester information integration system design is particularly important.

The system consists of data acquisition module, communication module, control module, and display module composed of four parts.The hardware is mainly composed of switches, touch screens, and PLC and stepper motor drives.Finishing(1) For the touch screen interface design, so that the display interface, login interface and function selection interface can be a good run.(2) The collection of the working state of the harvester, and can be displayed on the touch screen.(3) Through the touch screen issued instructions and then through the PLC to control the harvester, and then change the working speed of the harvester with the working state.The specific implementation of the program  is as follows:

(1) Access to information, to understand the harvester information integration system design technical requirements and research status.

(2) The design of the touch screen of the human-computer interaction interface, the design of the sensor signal conditioning circuit, for the main acquisition module and control module were selected.

(3) The design of the touch screen interface and edit the interface of the driver, the preparation of the PLC control procedures.

Keywords：PLC; Touch screen; Harvester; Control and Display.

目录

第一章绪论 5

1.1研究的目的和意义 5

1.2国内外研究现状 5

1.2.1国内研究现状 5

1.2.2国外发展现状 6

1.2.3国内外存在的问题 7

1.3本课题主要研究内容 7

第二章收割机信息集成系统硬件部分