| 基于RS-485总线的现场监测单元的设计与实现 |
| |
| 引用本文： | 李明,黄天戍,孙涛,任清珍. 基于RS-485总线的现场监测单元的设计与实现[J]. 计算机工程与应用, 2003, 39(30): 209-211 |
| |
| 作者姓名： | 李明 黄天戍 孙涛 任清珍 |
| |
| 作者单位： | 武汉大学计算机学院,武汉,430072 |
| |
| 基金项目： | 国家“八五”重点科技攻关项目研究内容之一(编号:85-208-01-01-14) |
| |
| 摘 要： | 针对分布式测控系统的特点,提出了一种新型的基于RS-485总线的现场监测单元。该现场监测单元采用了PC总线接插板技术,内部配有多种类型的数据采集卡,能兼容较多类型的传感器、执行器和智能仪器;软件系统使用DOS技术,结构化设计方法;工作方式结合了主从式和节点驱动式网络的优点。实践表明该现场监测单元具有较高的可靠性、实时性和开放性。
|
| 关 键 词： | RS-485总线 分布式测控系统 现场监测单元 软件系统 可靠性 实时性 |
| 文章编号： | 1002-8331-(2003)30-0209-03 |
| 修稿时间： | 2003-01-01 |
Design and Implementation of Local Monitoring Unit Based on RS-485 Bus |
| |
| Li Ming Huang Tianshu Sun Tao Ren Qingzhen. Design and Implementation of Local Monitoring Unit Based on RS-485 Bus[J]. Computer Engineering and Applications, 2003, 39(30): 209-211 |
| |
| Authors: | Li Ming Huang Tianshu Sun Tao Ren Qingzhen |
| |
| Abstract: | In the light of the characteristic of Distributed Control System,this paper puts forward a new-style Local Monitoring Unit(LMU)based on RS-485bus.The LMU based on PC bus technology contains many data acquisition cards compatible with many kinds of sensors,performers and intelligent instruments.On the other hand it uses DOS technology and the structure method to design software system.And the working mode of the LMU has the advantage of master-slave mode and node-driving network mode.The practice shows that this kind of LMU has the character of high reliability,real-time and opening. |
| |
| Keywords: | RS-485bus Distributed Control System LMU Software system Reliability Real-time |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
