期刊文献+
共找到8篇文章
< 1 >
每页显示 20 50 100
分布式IEC61850 MMS报文监测系统研究与实现 被引量:2
1
作者 刘栋 黄新 曹辉 《科技资讯》 2012年第27期14-18,共5页
随着数字化变电站不断增多,原有的集中式IEC61850站控层MMS报文检测系统不能满足分布式应用的要求。文中分析MMS报文结构,设计在嵌入式Linux装置中进行分布式MMS报文采集,通过网络通信流程,与后台服务器组成分布式监测系统。结合系统的... 随着数字化变电站不断增多,原有的集中式IEC61850站控层MMS报文检测系统不能满足分布式应用的要求。文中分析MMS报文结构,设计在嵌入式Linux装置中进行分布式MMS报文采集,通过网络通信流程,与后台服务器组成分布式监测系统。结合系统的实现,进行了实现难点分析和总结,并为下一步的改进完善指出了方法。 展开更多
关键词 分布式系统 IEC 61850 报文监测 嵌入式系统
下载PDF
网络报文在线监测的过程层网络接入分析 被引量:5
2
作者 孟令雯 汪明媚 古庭赟 《电力大数据》 2017年第11期50-53,共4页
网络报文在线监测分析系统将越来越多的应用于智能变电站,实现通信网络的实时监测。本文详细阐述了网络报文在线监测分析系统基于Vlan模式接入过程层网络的方案和基于GMRP模式接入过程层网络的方案。并从网络报文在线监测分析系统的端... 网络报文在线监测分析系统将越来越多的应用于智能变电站,实现通信网络的实时监测。本文详细阐述了网络报文在线监测分析系统基于Vlan模式接入过程层网络的方案和基于GMRP模式接入过程层网络的方案。并从网络报文在线监测分析系统的端口网络流量,硬件配置,接入灵活性等对这两种方案的四种模式进行了分析,推荐采用基于GMRP的多端口接入模式,并为今后网络报文在线监测分析系统的过程层网络接入方案设计提供了参考。 展开更多
关键词 IEC61850 网络报文在线监测分析系统 VLAN GMRP
下载PDF
基于CAN总线的纯电动汽车数据监测系统的开发 被引量:3
3
作者 曹红 尹伟 +2 位作者 刘云岗 井锡昌 王维昌 《内燃机与动力装置》 2013年第4期28-31,共4页
为了更方便地读取车载CAN总线报文信息,以便及时发现通信故障,确保车辆正常行驶,本文以飞思卡尔MC9S12XET256单片机为微处理器开发了基于CAN总线的纯电动汽车数据监测系统。该系统实现了CAN报文读取、解析、显示、存储及故障诊断等功能... 为了更方便地读取车载CAN总线报文信息,以便及时发现通信故障,确保车辆正常行驶,本文以飞思卡尔MC9S12XET256单片机为微处理器开发了基于CAN总线的纯电动汽车数据监测系统。该系统实现了CAN报文读取、解析、显示、存储及故障诊断等功能。本文介绍了系统最小核心单元、CAN线通信模块、U盘存储模块、时钟模块、界面显示模块等硬件电路设计及软件设计方法。 展开更多
关键词 CAN总线 报文监测 通信故障诊断
下载PDF
中心编制完成《超短波监测管理一体化平台技术规范SOAP报文结构补充说明》
4
作者 丛远东 蒲星 许梦竹 《中国无线电》 2019年第7期4-5,共2页
为解决省级无线电管理机构在按照《超短波监测管理一体化平台技术规范(五部分)》进行超短波监测业务服务化封装时报文不一致、无法实现跨平台调用超短波监测设备等问题,近日,国家无线电监测中心(以下简称'中心')牵头编制了《超... 为解决省级无线电管理机构在按照《超短波监测管理一体化平台技术规范(五部分)》进行超短波监测业务服务化封装时报文不一致、无法实现跨平台调用超短波监测设备等问题,近日,国家无线电监测中心(以下简称'中心')牵头编制了《超短波监测管理一体化平台技术规范SOAP报文结构补充说明》。 展开更多
关键词 一体化平台 《超短波监测管理一体化平台技术规范SOAP报文结构补充说明》 报文结构 监测管理
下载PDF
MC9S12DG128在汽车高低速CAN网络中的应用 被引量:3
5
作者 王坤 程安宇 +2 位作者 张黎红 王平 何文 《单片机与嵌入式系统应用》 2006年第7期45-48,共4页
根据“长安之星”SC6350的特点,提出一个具有高低速CAN网络及LIN网络的整体汽车网络构架方案;使用Motorola公司16位微控制器MC9S12DG128设计实现高低速CAN网关,并给出其软硬件设计以及在此网关上高低速CAN网络的报文监测电路的实现。该... 根据“长安之星”SC6350的特点,提出一个具有高低速CAN网络及LIN网络的整体汽车网络构架方案;使用Motorola公司16位微控制器MC9S12DG128设计实现高低速CAN网关,并给出其软硬件设计以及在此网关上高低速CAN网络的报文监测电路的实现。该设计已在“长安之星”SC6350车身网络中的网关测试中获得成功。测试结果表明,该网关设计具有结构简单、可靠性高,实用性强等特点。 展开更多
关键词 CAN网络 网关 报文监测 汽车电子
下载PDF
基于DPI及人工智能的业务识别系统研究 被引量:3
6
作者 王璐 《无线互联科技》 2019年第16期30-32,共3页
文章综合分析了已有的网络业务识别技术的特点并进行综合对比,同时结合DPI和机器学习技术,提出了基于DPI以及人工智能的业务识别系统,并通过实验结果验证此系统在识别业务的正确性上优于现有的业务识别系统。
关键词 深度报文监测技术 机器学习 人工智能 业务识别
下载PDF
Design and Application of the Annual Report of Globally Important Agricultural Heritage Systems(GIAHS)Monitoring 被引量:5
7
作者 JIAO Wenjun WANG Bojie +1 位作者 SUN Yehong LIU Moucheng 《Journal of Resources and Ecology》 CSCD 2021年第4期498-512,共15页
Scientific and effective heritage monitoring can not only realize the conservation of the heritage itself and the maintenance of its values,but it can also realize the sustainable development of the heritage site.In o... Scientific and effective heritage monitoring can not only realize the conservation of the heritage itself and the maintenance of its values,but it can also realize the sustainable development of the heritage site.In order to promote the conservation and management of Globally Important Agricultural Heritage Systems(GIAHS),this study proposed a design for the annual report of GIAHS monitoring under the overall framework of the GIAHS monitoring system,and explored the application of the annual report in the first GIAHS site in China:the Qingtian Rice-Fish Culture System.In the design scheme of this study,the GIAHS annual monitoring report is composed of 24 monitoring items,with each of them logically related.It is to be filled in by the bureaus of the heritage site and reported through the GIAHS dynamic monitoring system.The results of an analysis of the annual reports of Qingtian Rice-Fish Culture System for four years showed that Qingtian County has taken a series of conservation and development measures which have reduced the area of abandoned paddy,enhanced the unit benefit of agri-products,and increased the farmers’income.At the same time,the heritage site is faced with various challenges and threats,such as the weakening of the tourism attraction,the aging of the heritage practitioners,and the limitation of the heritage-themed agri-products and tourism income,which need to be addressed with proper measures.The results can also provide guidance for other GIAHS based on indications that heritage sites should improve the development of cultural products,the construction of social organization and the cultivation of spontaneous publicity,and an exchange and learning mechanism should be established among them in the future.The design and application of the GIAHS annual monitoring reports can not only provide specific guidance for conducting the GIAHS monitoring,but also lay the foundation for evaluating the effectiveness of GIAHS conservation and management.This study is expected to help enrich the theory of GIAHS monitoring,further promote China’s GIAHS monitoring work,and also provide China’s experience for the benefit of international GIAHS monitoring efforts. 展开更多
关键词 Globally Important Agricultural Heritage Systems(GIAHS) MONITORING annual report Qingtian Rice-Fish Culture System
原文传递
Hydrological monitoring and seasonal forecasting:Progress and perspectives
8
作者 汤秋鸿 张学君 +5 位作者 段青云 黄诗峰 袁星 崔惠娟 李哲 刘星才 《Journal of Geographical Sciences》 SCIE CSCD 2016年第7期904-920,共17页
Hydrological monitoring and seasonal forecasting is an active research field because of its potential applications in hydrological risk assessment, preparedness and mitigation. In recent decades, developments in groun... Hydrological monitoring and seasonal forecasting is an active research field because of its potential applications in hydrological risk assessment, preparedness and mitigation. In recent decades, developments in ground and satellite measurements have made the hydrometeorological information readily available, and advances in information technology have facilitated the data analysis in a real-time manner. New progress in climate research and modeling has enabled the prediction of seasonal climate with reasonable accuracy and increased resolution. These emerging techniques and advances have enabled more timely acquisition of accurate hydrological fluxes and status, and earlier warning of extreme hydrological events such as droughts and floods. This paper gives current state-of-the-art understanding of the uncertainties in hydrological monitoring and forecasting, reviews the efforts and progress in operational hydrological monitoring system assisted by observations from various sources and experimental seasonal hydrological forecasting, and briefly introduces the current monitoring and forecasting practices in China. The grand challenges and perspectives for the near future are also discussed, including acquiring and extracting reliable information for monitoring and forecasting, predicting realistic hydrological fluxes and states in the river basin being significantly altered by human activity, and filling the gap between numerical models and the end user. We highlight the importance of understanding the needs of the operational water management and the priority to transfer research knowledge to decision-makers. 展开更多
关键词 hydrological monitoring hydrological forecasting UNCERTAINTY MODELING remote sensing climate model
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部