基于plc的路灯设计

摘要随着数字技术和网络技术的发展，公共照明数字化和网络化已经成为一种必然趋势。节约能源、保证灯具寿命、提高照明管理水平、美化城市夜量和保证城市夜间出行安全等，已经成为对公共照明系统的一项基本要求。公共照明系统广泛采用高压钠灯或金属卤化物灯传统照明系统经常采用电感镇流器，本文将介绍基于PLC的路灯控制系统。本文设计基于PLC的路灯监控系统根据时间的变化，控制路灯的明亮程度。同时考虑到不同的季节天气等的变化的实际情况，以亮度检测控制辅助，达到更合理的目的。关键词：PLC，亮度控制，定时控制StreetlightmonitoringsysteminthePLC-baseddesignAbstractAlongwitharithmeticfiguretechniquewithtechnicaldevelopmentinnetwork,thepubliclightingarithmeticfigureturntoturntohavebecomeakindofinevitabletrendwiththenetwork.Economyenergy,guaranteethelamplifespan,increaseilluminatetomanagethelevel,beautifythecitynightmeasureswithguaranteenighttimeincityoutlinesafetyetc.,havebecometoabasicrequestofthepubliclightingsystem.Theextensiveadoptioninsysteminpubliclightinghighpressurelightmetalsturnsthethinglighttraditionilluminatesthesystemtousuallyadopttheelectricityfeelsthetownflowsthemachine,illuminatinglamptheadoptionunifyswitchcontrolcase.ThisarticlewillintroducethestreetlampcontrolsystembasedonPLC.Inthispaper,thedesignbasedonPLCstreetlampmonitoringsystemaccordingtothetimechange,controlthestreetlampbrightdegree.Takingintoaccountthedifferentseasonalweatherchangesintheactualsituation,tobrightnessdetectioncontrolauxiliary,achievemorereasonablepurpose.KEYWORDS:PLCBRIGHTNESSCONTROLTIMINGCONTROL目录1绪论...........................................................................................................................11.1课题背景.............................................................................................................11.2国内外的发展现状.............................................................................................21.3节能控制系统.....................................................................................................22控制系统设计方案...................................................................................................32.1PLC介绍..............................................................................................................32.2高压钠灯介绍.....................................................................................................42.3控制系统方案.....................................................................................................52.3.1方案论证.......................................................................................................52.3.2设计方案.......................................................................................................52.3.3结构框图.......................................................................................................63硬件电路的设计.......................................................................................................73.1西门子S7-200PLC的介绍................................................................................73.2亮度检测装置.....................................................................................................83.3时间调整电路.....................................................................................................93.4时间显示电路.....................................................................................................93.5电流检测电路...................................................................................................113.6报警及指示电路...............................................................................................123.7控制系统供电电路...........................................................................................134软件部分的设计.....................................................................................................134.1STEP7-Micro/WIN32编程软件介绍...............................................................144.2子程序...............................................................................................................155总结.........................................................................................................................17致谢.............................................................................................................................18参考文献.....................................................................................................................19附录1：......................................................................................................................19附录2：......................................................................................................................22附录3：总体电路图..................................................................................................23附录4：梯形图程序....................................................................错误!未定义书签。11绪论路灯控制是市政建设的一项重要内容，为了高效的进行路灯管理，各国都不断的进行研究，利用各种先进技术，提高路灯的控制效率，保障路灯的可靠运行。目前国内的路灯控制器生产的品牌很多，路灯控制器集电磁技术、智能化控制技术、数据控制技术于一体，在可控和平缓的方式下智能调节，使输出电压稳定在设定的额定值范围之间，路灯控制器实现公共照明系统的工作电流与亮度需求的理想结合，达到控制方便可靠与节电和优化供电目的，根据一年四季变化规律与经纬度算法计算日出日落时间而且有开关时间微调和半夜控制功能，从而能适应不同地理环境的需要。1.1课题背景随着科学技术的不断发展、城市规模的急剧膨胀，城市照明已经不仅局限于街道的照明，社会对亮灯率、开关灯的准确率、故障检测的实时性和维修的及时性、路灯的节能要求也不断的增高，这样集现代计算机技术、无线电通信、测控技术、路灯电力节能于一体的城市照明节能、自动监控和管理系统也就应运而生了。随着现代科技的日益发展和人们生活水平的不断提高，绿色照明已经成为当今照明界发展的一种趋势，科学的控制路灯，不仅可以满足人们行路行车的安全，还能节约电能及延长灯具的使用寿命,从而减轻维修工作量和减少运行费