检索结果-南通市图书馆

2007 8th International Conference on Electronic Measurement & Instruments（ICEMI’2007）

作者： Xue Xian 1 Zhang Shiying 2 Chen Jiazhao 2 1 The Second Artillery Equipment Research Institute Peking 100085 China 2 The Second Artillery Engineering College 203 Teaching and Researching Room

The special equipment railway transportation communication net based on the field bus that the paper issued, aimed at the characteristic of railway transportation, such as simple structure, distinct layer, reducing data intermediate link as far as possible in network flows , reducing the cost of entire system, increasing flexibility, reliability and the fast communication. According to this principle, the paper only adopted OSI model 1, 2 and 7 layers, and created a user layer. The structures of the transportation communication net based on the field bus are physical layer, data linking layer, application layer and user layer. On the foundation of communication net layers, we designed the communication net communication protocols based on the field bus. We set monitoring unit logic number in the data token defined in transportation communication net protocol, realized the random net of transportation task at random. RS-485 half-duplex communication net shift circuit is designed and the net experiment is as well completed.

关键词： field bus half-duplex communication communication protocols random net

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

一个使用多传感器现场总线技术的监控系统

引用

计算机科学 2002年第Z2期29卷 107-109页

作者：刘其真王小芳刘琦何永保上海复旦大学计算机科学系上海200433 上海复旦大学计算机科学系上海200433 上海复旦大学计算机科学系上海200433 上海复旦大学计算机科学系上海200433

　　1.引言　　近年来,现场总线技术(field bus)[1,2]在工业过程监控领域得到了越来越广泛的应用,该技术特别适合于远距离多点信号检测,它利用双向、高速和可寻址的数字通讯手段,将若干传感器输出的模拟信号进行现场采集,并将原本由计... 详细信息

　　1.引言　　近年来,现场总线技术(field bus)[1,2]在工业过程监控领域得到了越来越广泛的应用,该技术特别适合于远距离多点信号检测,它利用双向、高速和可寻址的数字通讯手段,将若干传感器输出的模拟信号进行现场采集,并将原本由计算机完成的A/D转换、D/A转换、前置数据处理、发出命令等一些控制功能下移到现场智能控制模块,从而大大减少了监控主机的工作负担,极大地精简了远距离数据传输的内容,大大减少了传感器与计算机之间的物理连接线路,提高了数据传输的速度和可靠性.……

关键词：多传感器现场总线技术监控系统 field bus 数据传输智能控制模块远距离计算机转换信号检测现场采集数字通讯数据处理模拟信号连接线路控制功能监控主机过程监控工作负担可寻址

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research and Development of On-line Monitoring and Management System to Hart field Devices

Research and Development of On-line Monitoring and Managemen...

引用

2007 8th International Conference on Electronic Measurement & Instruments（ICEMI’2007）

作者： Wanghongyuan Shilin Shilianming Yangxiaoying Xushoukun (Department of computer Jiangsu Polytechnic University Changzhou 213164 China)

This article introduces the design and realization of an on-line monitoring and on-line management system of 240 HART protocol field bus intelligent instruments, which installed on 4 ethene crack furnaces. The system includes the HART protocol bridges, communication server, OPC server, client management software. Through timely collecting and analyzing digital signals of the spot HART protocol intelligent instruments, the system can realizes on-line monitoring, on-line diagnosis, on-line maintenance and on-line management to the 240 spot instruments. And this system has been applied in the scene since last October.

关键词： field bus HART protocol timely monitoring timely diagnosis OPC server information management system

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Research on Experiment Platform of Engineering Vehicle Hydraulic Chassis

Research on Experiment Platform of Engineering Vehicle Hydra...

引用

第五届流体传动与控制国际会议

作者： Tang Zhiyong Liu Yi Pei Zhongcai Peng Zhaoqin Qi Xiaoye School of Automation Science and Electrical Engineering Beijing University of Aeronautics and Astronautics Xueyuan Road No.37 Haidian District Beijng 100083 China

＜正＞For researching the performance of engineering vehicle hydraulic chassis,the experiment platform based on field bus was *** was composed of load simulation system and driving system. And the hydraulic principle of two systems is introduced. In order to realizing different test items of hydraulic chassis,the effective monitor and control are necessary, so network control system based on PROFIbus was presented,and the corresponding control methods were *** the results of experiment proved the validity of whole system.

关键词： engineering vehicle hydraulic chassis field bus secondary element network control

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Design of UHF RFID Reader System with Multiple fieldbus

A Design of UHF RFID Reader System with Multiple Fieldbus

引用

2010 International Conference on Intelligent Computing and Integrated Systems

作者： GUO Zhen-jun HUANG Ting-lei Institute of Information and Technology Guilin University of Electronic Technology Guilin 541004 China

＜正＞This paper have designed a kind of UHF RFID based on ISO/IEC 18000-6B standard and supporting multiple *** were mainly introduced from the reader hardware and fieldbus control module circuits,and software were respectively introduced from system master programs and bus receiver and launching system *** the development of RFID,developing supporting fieldbus UHF RFID has some prospect.

关键词： RFID UHF ARM7 field bus reader anti-collision

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Design of Interface Model Based on HART Protocol

A Design of Interface Model Based on HART Protocol

引用

2012年计算机应用与系统建模国际会议

作者： Lin Xiaoning Department of Information Engineering JIANGSU Radio and TV University

A communication interface model based on HART protocol is designed in this paper. The definition of hardware interface and the implementation of software modules are presented in detail. According to the model, the development period of field communication system can be shortened to some extent. An example is introduced based on HART protocol in the end.

关键词： -HART Protocol field bus HT3012 Interface Model

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：