-低压电力线载波集中抄表系统 - 通信系统参考模型-国家电网公司VIP专享VIP免费

低压电力线载波集中抄表系统第二部分：数据通信协议第一篇：通信系统参考模型AutomaticMeterReadingSystemUsingLow-VoltageDistributionLineCarrierPART2:DataCommunicationProtocolsSECTION1:ReferenceModelofCommunicationSystem陕西电力公司企业标准XX/XXXXXX-2011青岛东软电脑技术有限公司××××-××-××发布××××-××-××实施XXX××.××.××XX××目次引言...........................................................................................................................................................II1范围...............................................................................................................................................12引用标准.......................................................................................................................................13参考模型描述...............................................................................................................................33.1概述...........................................................................................................................................33.2OSI模型的基本原理................................................................................................................33.2.1分层结构...............................................................................................................................33.2.2服务和协议...........................................................................................................................33.3参考模型...................................................................................................................................43.3.1最小的三层结构...................................................................................................................43.3.2基本传输原理.......................................................................................................................53.3.3物理层PhysicalLayer...........................................................................................................63.3.4数据链路层DataLinkLayer................................................................................................63.3.5LLC子层...............................................................................................................................63.3.6MAC子层.............................................................................................................................63.3.7可选的中间层.......................................................................................................................63.3.8应用层...................................................................................................................................63.3.9网络管理...............................................................................................................................63.3.10系统管理...............................................................................................................................7-I-引言本标准的制定是基于国际电工委员会技术报告IEC61334《采用配电线载波的配电自动化》和IEC62056《抄表、费率和符合控制的数据交换》标准系列，以及电子工业联合会EIA600《CEBus标准》文件集。考虑到这些标准内容对中华人民共和国配电网的实用性和复杂度，以及当前通信技术水平的发展，我们综合了诸多标准的优点，并对其部分内容进行了扩...