DS型計(jì)算機(jī)聯(lián)鎖系統(tǒng)特點(diǎn)Characteristic

DS6-60型計(jì)算機(jī)聯(lián)鎖系統(tǒng)特點(diǎn)CharacteristicsofDS6-60CBI天津鐵道職業(yè)技術(shù)學(xué)院聯(lián)鎖與軌旁信號(hào)設(shè)備維護(hù)DS6-60型計(jì)算機(jī)聯(lián)鎖系統(tǒng)是北京全路通信信號(hào)研究設(shè)計(jì)院有限公司在引進(jìn)、消化和吸收國際先進(jìn)計(jì)算機(jī)聯(lián)鎖技術(shù)基礎(chǔ)上，繼承和發(fā)揚(yáng)自身技術(shù)優(yōu)勢，自主創(chuàng)新研發(fā)的一套符合歐洲鐵路安全標(biāo)準(zhǔn)的計(jì)算機(jī)聯(lián)鎖系統(tǒng)。DS6-60型計(jì)算機(jī)聯(lián)鎖系統(tǒng)特點(diǎn)1.DS6-60系統(tǒng)采用二乘二取二冗余結(jié)構(gòu)設(shè)計(jì)，系統(tǒng)中所有涉及到安全信息處理和傳輸?shù)牟考凑铡肮收?安全”原則采取了雙重系結(jié)構(gòu)設(shè)計(jì)，任何單點(diǎn)故障都不會(huì)影響系統(tǒng)的正常使用，以滿足鐵路車站信號(hào)控制設(shè)備高可靠和高安全的使用要求。2.系統(tǒng)聯(lián)鎖邏輯部為二乘二取二結(jié)構(gòu)，分為Ⅰ系和Ⅱ系，各系內(nèi)部為二取二結(jié)構(gòu)，任何一系都可以獨(dú)立工作，雙系采用主從方式運(yùn)行，任一系檢測到嚴(yán)重故障，如系統(tǒng)內(nèi)存校驗(yàn)錯(cuò)誤、雙CPU輸出比較不一致等故障時(shí)，都會(huì)主動(dòng)切換，保證系統(tǒng)功能正常執(zhí)行，使系統(tǒng)具有高可靠性。3.聯(lián)鎖雙系中每系均包括兩個(gè)獨(dú)立的CPU單元，兩個(gè)CPU單元實(shí)現(xiàn)二取二比較，只有兩個(gè)CPU的運(yùn)算結(jié)果一致才能對(duì)外輸出；雙系中每系兩個(gè)CPU單元的軟件分別采用不同編譯器編譯，可以有效防止編譯器產(chǎn)生共模錯(cuò)誤，使系統(tǒng)具有高安全性。DS6-60型計(jì)算機(jī)聯(lián)鎖系統(tǒng)特點(diǎn)

TheDS6-60CBIisasetofindependentinnovationdevelopedbyBeijingQuanluCommunicationSignalResearchandDesignInstituteCo.,Ltd.onthebasisofintroducing,digestingandabsorbinginternationaladvancedcomputerinterlockingtechnology,inheritinganddevelopingitsowntechnicaladvantages,inlinewithEuropeanrailwaysafetystandardCBI.1.TheDS6-60systemisdesignedwithadouble2-vote-2redundantstructure.Allcomponentsinvolvedinsafeinformationprocessingandtransmissionaredesignedwithadoublesystemstructureaccordingtothe"fault-safe"principle,sothatanysinglepointofthefaultwillnotaffectthenormaluseofthesystem,tomeetthehighreliabilityandsafetyrequirementsofrailwaystationsignalcontrolequipment.2.Theinterlockinglogicsectionofthesystemisdividedintothe2-vote-2structure,dividedintoSystemⅠandSystemⅡ,eachsystemisaninternally2-vote-2structure,eithersystemcanworkindependently,thedualsystemisoperatedinmaster-slavemode,wheneithersystemdetectsaseriousfault,suchassystemmemorycheckerror,dualCPUoutputcomparisoninconsistencyandotherfaults,itwilltaketheinitiativetoswitchtoensurethenormalexecutionofsystemfunctions,sothatthesystemhashighreliability.3.EachofthetwointerlockingsystemsincludestwoindependentCPUunits,andthetwoCPUunitsachieve2-vote-2comparison.OnlytheoperationresultsofthetwoCPUsareconsistent.ThesoftwareofeachofthetwoCPUunitsinthetwosystemsiscompiledbyadifferentcompiler,whichcaneffectivelypreventthecompilerfrommakingcommonmodeerrors,sothatthesystemhashighsecurity.CharacteristicsofDS6-60CBI4.輸入采集單元采用靜態(tài)采集方式，由輸入采集機(jī)籠內(nèi)的兩個(gè)獨(dú)立CPU單元分別進(jìn)行采集，由聯(lián)鎖邏輯部對(duì)采集結(jié)果進(jìn)行比較，比較一致認(rèn)為采集數(shù)據(jù)有效，否則采集數(shù)據(jù)無效，構(gòu)成二取二故障-安全采集。5.輸出單元采用雙斷控制，動(dòng)態(tài)和靜態(tài)兩路驅(qū)動(dòng)串聯(lián)輸出，靜態(tài)和動(dòng)態(tài)輸出分別由輸出機(jī)籠內(nèi)的兩個(gè)獨(dú)立的CPU單元控制，當(dāng)一路輸出無效時(shí)，總輸出則為無效，構(gòu)成硬件相異的二取二故障-安全輸出。DS6-60型計(jì)算機(jī)聯(lián)鎖系統(tǒng)特點(diǎn)4.Theinputacquisitionunitadoptsstaticacquisitionmode.ThetwoindependentCPUunitsintheinputacquisitioncagearecollectedseparately.Theinterlockinglogicsectioncomparesthecollectionresults.Thecomparisonunanimouslyconsidersthatthecollecteddataisvalid.Otherwise,thecollecteddataisinvalidandconstitutesa2-vote-2fault–safeacquisition.5.Theoutputunitadoptsdual-breakcontrol,andthedynamicandstatictwo-waydriveareoutputinseries.ThestaticanddynamicoutputsarerespectivelycontrolledbytwoseparateCPUunitsintheoutputcage.Whentheone