《集散式人工气候室智能监控系统设计》由会员分享，可在线阅读，更多相关《集散式人工气候室智能监控系统设计（77页珍藏版）》请在金锄头文库上搜索。
1、南京航空航天大学硕士学位论文集散式人工气候室智能监控系统设计姓名：陈路申请学位级别：硕士专业：交通信息工程及控制指导教师：乔兵20090301南京航空航天大学硕士学位论文I摘 要随着社会的进步，越来越多的新技术在工农业的生产中得到了广泛的应用，人工气候室可以有效提高劳动生产率和资源利用率，已成为工业控制技术研究的热点。论文首先分析了人工气候室的特点，依据项目实际情况提炼出了环境控制参数指标和功能需求，按照集散式系统的基本构成设计实现了具有特色的集散式人工气候室智能监控系统。利用集散式系统的开放性技术，实现了原本封闭的系统与第三方设备的通信。依据项目实际先后实现了基于 PLC 的系统方案和基于单
2、片机控制器的系统方案，并利用安装了 WinCC 组态软件的工程师站的开放性接口，实现了优缺点互补的两种方案之间的融合。使得用户可以根据项目进度、技术要求、资金的情况进行灵活组合，降低了集散式系统的建设和维护成本。按照集散式系统的基本构成：工程师站、操作员站、现场 I/O 控制站、系统网络。本文分别介绍了工程师站的组态及工程师站开放性接口的实现程序；介绍了 PLC 方案中的操作员站、现场 I/O 控制站、系统网络的组态；单片机方案中液晶式操作员站的人机界面设计及软硬件实现，RS485 总线构建的系统网络。关键词：人工气候室，集散式系统，PLC，单片机，WinCC。集散式人工气候室智能监控系统设计
3、IIABSTRACTWith the progress of society, an increasing number of new technologies have been widelyapplied in the industrial and agricultural production areas. The climate chamber, as an excellenttechnology which is effectively good for productivity and resource utility, has been a research focusin th
4、e industrial control field.The application of a distributed intelligent monitor and control system for climate chamber wasdiscussed. First of all, the characteristics of the climate chamber were analyzed, and based on a realproject proposed the specification of the environment and control parameters
5、 and requirements offunctions. According to the basic design for distributed system, the distributed intelligent monitoring/Controlling system for climate chamber has been presented in this paper. By using the open DCStechnology, this system established communication between the original closed syst
6、em and third-party equipments. Furthermore, a high- end PLC program and a low- end MCU program have beenrealized step by step. And then, by using of the open interface of a WinCC installed engineer stations(ES), a perfect integration of the two programs has been achieved successfully. Users can conf
7、igurethe system according to project progress, technical requirements, and the availability of funds.Consequently the cost of DCS system construction and maintenance has been reduced.Second, the basic elements for DCS system are ES, operator station (OS), I/O controller, andsystem network. All these
8、 items have been introduced separately in this paper: the ES configurationand the computer program for ES open interface realization; the specific OS, I/O controller andsystem networking configuration in PLC program; the man- machine interface of LCD OS and itsrealization in terms of hardware and so
9、ftware, and the construction of RS485 bus networking.Key words: Climate Chamber, DCS, PLC, MCU, WinCC南京航空航天大学硕士学位论文 V 图清单 图 2.1 DCS 系统构成.11 图 2.2 集散式系统结构图.13 图 2.3 集散式人工气候室智能监控系统总图.14 图 3.1 WinCC 资源管理器.17 图 3.2 监控界面结构.18 图 3.3 人工气候室状态总览.19 图 3.4 单室状态图.20 图 3.5 单室趋势图.21 图 3.6 生产环境配方管理界面.22 图 4.3 触摸屏操作员站开发界面.29 图 4.4 触摸屏开机监控画面.30 图 4.5 PROFIBUS 总线网络结构图.31 图 5.1 液晶式操作员站控制面板.34 图 5.2 JM19264 的内部逻辑电路.35 图 5.3 液晶式操作员站电路框架.38 图 5.4 7805 内部框图.39 图 5.5 7805 封装及引脚排列.39 图 5.6 电源模块原理图.40 图 5.7 串口通讯模块原理图.41 图 5.8 液晶模块接口及按键接口图.41 图 5.9 EEPROM 模块原理图 .
