毕业设计低压电力线载波通信系统设计.doc

本科毕业设计（论文）题目低压电力线载波通信系统设计学生姓名学号教学院系专业年级指导教师职称单位西南石油大学完毕日期6月5日SouthwestPetroleumUniversityGraduationThesisDesignMethodOFLowPowerLineCarrierCommunicationSystemGrade:Name:Speciality:AutomationInstructor:SchoolofElectricalandInformation-6摘要伴随现代社会发展，网络饰演着越来越重要角色，生产与生活中大量设备需要连接起来，构成网络，以实现对它们监测、控制与管理。在这些网络中，需要连接对象众多，位置也许变动，给网络构成带来一定困难。由于这些对象工作大都离不开电力，因此用低压电力线构成网络进行通信，是一种很有价值实现措施。本毕业设计重要实现两点之间通过低压电力线载波通信进行数据传播并通过上位PC进行监控。本设计基于SENS-01嵌入式电力线载波模块，其硬件部分包括载波耦合电路、信号发送电路（输出功率控制电路和信号功率放大电路）、滤波接受单元（接受滤波电路和解调电路）、电平转换电路等。软件部分包括串口调试和通信程序。在完毕硬件和软件设计之后，测试成果为发送端可以精确、高效向接受端通过低压电力线发送数据，具有很好抗干扰性能，可靠性高。关键词：低压电力线；载波通信；电平转换；串口；SENS-01AbstractWiththedevelopmentofmodernsociety,networksplayanincreasinglyimportantrole.Intheproductionandlife,alargenumberofdevicesneedtobeconnectedtogethertoformnetworkstomonitor,controlandmanagethem.Itmaybringsomedifficultiesthatthesedevicesmayhavemanylocationsorchangethecomposition.Itisavaluablemethodtouseanetworkoflowvoltagepowerlinecommunication,becausemostofthesedevicescannotworkwithoutelectricity.Themainproblemthisgraduationdesignsupposedtosolveistransmittingdatathroughalow-voltagepowerlinecarriercommunicationsbetweentwopointsandthenmonitoringitthroughthehostPC.ThedesignisbasedonSENS-01,anembeddedpowerlinecarriermodule.Thehardwarepartsofthemoduleincludeacarriercouplingcircuit,asignaltransmissioncircuit(outputpower-controlcircuitandthesignalpoweramplificationcircuit),afilterreceivingunit(receptionfiltercircuitanddemodulationcircuit)andalevelconversioncircuit.TheSoftwarepartsincludeserialdebuggingandcommunicationprogram.Uponcompletionofthehardwareandsoftwaredesign,thesendercansenddataaccuratelyandefficientlytothereceivingendthroughthelow-voltagepowerlines,which,asthetestresult,hasgoodanti-jammingperformanceaswellashighreliability.Keywords:lowvoltagepowerline;carriercommunication;serial;levelconversion;SENS-01目录TOC\*MERGEFORMAT摘要PAGEREF_Toc29951IAbstractPAGEREF_Toc28469II1绪论PAGEREF_Toc317531.1研究目和意义PAGEREF_Toc954031.2国内外研究现实状况与发展趋势PAGEREF_Toc345931.