新型铁路手信号灯的研究与实现

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1、北京交通大学硕士学位论文新型铁路手信号灯的研究与实现姓名：聂菡申请学位级别：硕士专业：电子与通信工程指导教师：蔡伯根20081001ABSTRACT：Alongwiththerapiddevelopmentofmodernizingconstructiononrailwaytechnicalequipment，theproblemoflaggardrailwaysignalfacilitiesbegantoemerge·Andespecially,thebelliIldhandtechnologyofrailwayportablesignallightismorepromine

2、nt·Theexistingordinaryportablesignallightscannotsatisfytherequirementbyrailwayinhi#-speeddevelopment．SOonekindofportablesignallightwithmuchmoresafereliability,10ngerdisplaydistanceandbetterauto．controlfunctionisneededurgentlybyrailwaytransportingandoperatingdepartments．Aftermanyyearsofpositi

3、veexploration，finallyIresearchedanddevelopedakindofbrand．newportablesignallightwithLEDasthelightsource·Basedontheanalysistopresentconditionofdomestictechnologyforrailwayportablesi印a1light，thisthesismakesdetailedintroductionOildesign，researchandspeclncrealizationofthisnew．typeportablesignalli

4、ghtwithLED(LightEmiaingDiode)aslightsource．Thethesisgivesemphasestoeverydesignincoretechnologiesofthisnew。帅eportablesignallightsuchasLEDlightresource，maintenance-freepowersupplyingbatt哪auto．controlOilsignalswitchingandauto—controloncharging．Amongthesetechniques，LEDlightsourcereplacedincandes

5、centlamp，whichsolvedthecontradictionbe咐eell1uminanceande11er彰consumption．Theluminousintensityofnew-typelighthasbeenincreasedbytwotimesthanofvarioussignallights，buttheenergyconsumption1Sonlytheonethirdofordinaryproducts．Theworkinglifeoflightsourcehasalsobeenprolongedforthousandstimes'andthete

6、chnologyofmaintenance-freepowersupplyingbatterytotallyaVoidedthosefrequentmalfunctionsofordinaryportablesignallightssuchaspossiblecorI-osionofelec仃odesandbadcontacts．Thecapacityofbatteryhasbeenenhancedby66％．workinglifeofproducthasbeenprolongedbytwotimes，andtheweightWasreducedbvonethird．Espec

7、ially,fourmaintechnicalspecificationssuchas20hratedcapacity,27minratedcapacity,largecurrentdischarge，overchargeandsafesecurityalreadyreachedofeXceededstandardsoflECandJIS，bywhichthegapinChinesedomestictechnologyonbattervofportablesignallightwassupp