工业现场温度网络监控系统设计.doc

更多论文/fanteral 毕业设计(论文)说明书作 者： 学 号： 系 ： 计算机工程系 专 业： 计算机科学与技术 题 目： 工业现场温度网络监控系统设计 毕业设计（论文）中文摘要 以PC机或工业控制机为上位机，集中显示并管理下位机；以单片机作为现场测控单元，采用RS485总线连接上位机和下位机测控单元的测控网络，可以实现工业现场数据的采集处理与传输。系统由PC机和单片机系统构成小型的分散式测控系统，下位机使用ATMEL公司的AT89C2051单片机，温度传感器采用美国Dallas半导体公司推出的数字温度传感器DS18B20，进行温度数据的采集，然后通过RS-485总线传输到PC机，从而实现对温度数据的采集处理和传输,系统的温度标定完全按照计量产品的规范进行，使得测量精度达到0.5级。上位机接口软件采用Visual Basic语言进行编写。通过本系统可以实现对工业现场温度的网络测控。系统由温度测量模块、温度采集模块、通信模块、温度查询模块、温度监控模块五个部分组成关键词 温度 网络监控 硬件设计 RS485 现场总线毕业设计（论文）外文摘要Title The Design of Temperature Network Supervisory System Based Industry Fieldbus AbstractComputer or industry control computer can display and manage the Single Chip;Field monitor unit is based on the Single Chip can collect deal with and transmit the data by the RS-fieldbus between PC and Single Chip.The (Distributed Control System,DCS) system is composed of PC and the Single Chip system,the lower machine use the AT89C2051 Single Chip which come from the company of ATMEL,the temperature sensor use numeric temperature sensor--DS18B20 which come from America company of Dallas to carry on the data collection,then transmit the data to PC through the RS-485 fieldbus,it can finish collecting and tansferring the temperature data, the system temperature demarcates defers to the standard of the measurement product completely, it makes the measuring accuracy to achieve 0.5 level.The interface function of the PC use Visual Basic language.The system can monitor the temperature of the industry field.The system is composed of the temperature measure module,the temperature collection module,the temperature inquiry module and the temperature monitoring module.Keyword: Temperature Network monitor and control Hardware design RS485 Bus Fieldbus 目 录 TOC \o 1-2 \h \z \u HYPERLINK \l _Toc138054652 1 引言 1 HYPERLINK \l _Toc138054653 2 温度监控系统总体方案设计 2 HYPE