期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
基于西门子S7-300400PLC的控制网络优化设计
1
作者 李国军 《电子测试》 2017年第11期60-60,62,共2页
文章从PLC的特点出发,其作为可编程逻辑控制器,主要在工业电气自动化中进行应用,可以更好地控制工业环境。在西门子PLC控制网络中包含了多种方案,并且其包含非常丰富的网络产品和软硬件产品,具有较较高的稳定性、低故障率、数据信息传... 文章从PLC的特点出发,其作为可编程逻辑控制器,主要在工业电气自动化中进行应用,可以更好地控制工业环境。在西门子PLC控制网络中包含了多种方案,并且其包含非常丰富的网络产品和软硬件产品,具有较较高的稳定性、低故障率、数据信息传输量大等特点。 展开更多
关键词 西门子S7-300400PLC 控制网络体系 信息传输量
下载PDF
一种实时工业测控局域网的硬件实现
2
作者 周伟 《测控技术》 CSCD 北大核心 1992年第1期31-33,20,共4页
本文提出了一种分级控制网络体系结构,并具体实现这一用于工业测控领域的网络结构。在这种分级控制结构中,分别以IRTP 产品和IRTP 工作站的互连网络构成现场级(Field Level)和单元级(Cell Level)控制。此外本文还详述了为实现IRTP 互连... 本文提出了一种分级控制网络体系结构,并具体实现这一用于工业测控领域的网络结构。在这种分级控制结构中,分别以IRTP 产品和IRTP 工作站的互连网络构成现场级(Field Level)和单元级(Cell Level)控制。此外本文还详述了为实现IRTP 互连而设计的通信处理机板RTPLINK 的硬件结构。 展开更多
关键词 控制网络体系 工业 测控局域网
下载PDF
The Study of Farmland Information Management System based on Wireless Sensor Networks 被引量:2
3
作者 余华 吕宁波 《Agricultural Science & Technology》 CAS 2010年第7期183-185,188,共4页
To satisfy the need of good quality and high yield primary production,the farmland information management system based on wireless Sensor Network has been proposed.We give priority to analyzing the basic function of t... To satisfy the need of good quality and high yield primary production,the farmland information management system based on wireless Sensor Network has been proposed.We give priority to analyzing the basic function of the system,building the systematic structure of applied system and network system,and implementing the energy control and safety design of system.The system can reduce manpower operation and the error of manual measuration in the course of practical production,reduce the cost of agricultural production,and realize automatization of agricultural production to the largest extent to provide an effective way to realize good quality and high yield primary production,which has an important realistic meaning. 展开更多
关键词 Wireless Sensor Network System structure Energy control System safety
下载PDF
Multi-sensor systems and information processing of mobile robot in uncertain environments
4
作者 乔凤斌 杨汝清 《Journal of Southeast University(English Edition)》 EI CAS 2004年第3期341-345,共5页
The PBJ- 01 robot is a kind of mobile robot featuring six wheels and two swing arms which can help it to fit many terrains. The robot has a sophisticated sensor system, which includes ultrasonic sensors, tentacle sens... The PBJ- 01 robot is a kind of mobile robot featuring six wheels and two swing arms which can help it to fit many terrains. The robot has a sophisticated sensor system, which includes ultrasonic sensors, tentacle sensors and a vision sensor. The PBJ- 01 adopts behavior-based reactive control architecture in which the key part is an object recognition system based on a fuzzy neural network. Simulation validates that this system can conclude the obstacle type from the sensor data, and help the robot decide whether to negotiate or to avoid obstacles. 展开更多
关键词 mobile robot behavior-based reactive control architecture neural network
下载PDF
Smart Grids with Intelligent Periphery:An Architecture for the Energy Internet 被引量:24
5
作者 Felix F.Wu Pravin P.Varaiya Ron S.Y.Hui 《Engineering》 SCIE EI 2015年第4期436-446,共11页
A future smart grid must fulfill the vision of the Energy Internet in which millions of people produce their own energy from renewables in their homes, offices, and factories and share it with each other. Electric veh... A future smart grid must fulfill the vision of the Energy Internet in which millions of people produce their own energy from renewables in their homes, offices, and factories and share it with each other. Electric vehicles and local energy storage will be widely deployed. Internet technology will be utilized to transform the power grid into an energysharing inter-grid. To prepare for the future, a smart grid with intelligent periphery, or smart GRIP, is proposed. The building blocks of GRIP architecture are called clusters and include an energy-management system (EMS)-controlled transmission grid in the core and distribution grids, micro-grids, and smart buildings and homes on the periphery; all of which are hierarchically structured. The layered architecture of GRIP allows a seamless transition from the present to the future and plug-and-play interoperability. The basic functions of a cluster consist of (1) dispatch, (2) smoothing, and (3) mitigation. A risk-limiting dispatch methodology is presented; a new device, called the electric spring, is developed for smoothing out fluctuations in periphery clusters; and means to mitigate failures are discussed. 展开更多
关键词 smart grid future grid Energy Internet energy- management system integrating renewables power system operation power system control distribution automation systems demand-side management
下载PDF
A Novel Stateful PCE-Cloud Based Control Architecture of Optical Networks for Cloud Services 被引量:1
6
作者 QIN Panke CHEN Xue +1 位作者 WANG Lei WANG Liqian 《China Communications》 SCIE CSCD 2015年第10期117-127,共11页
The next-generation optical network is a service oriented network,which could be delivered by utilizing the generalized multiprotocol label switching(GMPLS) based control plane to realize lots of intelligent features ... The next-generation optical network is a service oriented network,which could be delivered by utilizing the generalized multiprotocol label switching(GMPLS) based control plane to realize lots of intelligent features such as rapid provisioning,automated protection and restoration(P&R),efficient resource allocation,and support for different quality of service(QoS) requirements.In this paper,we propose a novel stateful PCE-cloud(SPC)based architecture of GMPLS optical networks for cloud services.The cloud computing technologies(e.g.virtualization and parallel computing) are applied to the construction of SPC for improving the reliability and maximizing resource utilization.The functions of SPC and GMPLS based control plane are expanded according to the features of cloud services for different QoS requirements.The architecture and detailed description of the components of SPC are provided.Different potential cooperation relationships between public stateful PCE cloud(PSPC) and region stateful PCE cloud(RSPC) are investigated.Moreover,we present the policy-enabled and constraint-based routing scheme base on the cooperation of PSPC and RSPC.Simulation results for verifying the performance of routing and control plane reliability are analyzed. 展开更多
关键词 optical networks control plane GMPLS stateful PCE cloud computing Qo S
下载PDF
信息撷英
7
《时事(时事报告大学生版)》 2004年第2期59-60,共2页
关键词 疾病预防控制网络体系 社会保障制度 食品种类 市场准入制度 就业工作 国有资产管理 围家安全行业 自然垄断行业 服务业 月球探测卫星
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部