Designing and realization of repository of diagnosis system for faults on railway station signaling equipments 車站信號(hào)設(shè)備故障診斷系統(tǒng)知識(shí)庫(kù)的設(shè)計(jì)與實(shí)現(xiàn)
Firstly a technical scheme of distributed & open rssrms based on three - tiered network architecture is implemented according to the development of control system and the specific situation of railway station signaling system 首先根據(jù)監(jiān)控系統(tǒng)的發(fā)展情況和鐵路站場(chǎng)信號(hào)系統(tǒng)的特點(diǎn),設(shè)計(jì)了一個(gè)基于三層網(wǎng)絡(luò)體系結(jié)構(gòu)的開放分布式鐵路站場(chǎng)信號(hào)遠(yuǎn)程監(jiān)控系統(tǒng)方案。
With the rapid development of modern network communication technology , control technology and distributed computing technology , the distributed & open remote monitoring system based on three - tiered network architecture has been applied increasingly in many fields . railway signaling system is the essential part to protect the railway working in safety . so remote railway station signaling monitoring system ( rrssms ) , which is an important part of the railway information system and play a key role to guarantee railway working with high efficiency and safety , will bring considerable benefits 隨著網(wǎng)絡(luò)通信技術(shù)、控制技術(shù)和分布式計(jì)算技術(shù)的飛速發(fā)展,基于三層網(wǎng)絡(luò)體系結(jié)構(gòu)的開放分布式遠(yuǎn)程監(jiān)控系統(tǒng)開始在各行各業(yè)中得到應(yīng)用,鐵路站場(chǎng)信號(hào)系統(tǒng)是鐵路行車調(diào)度和行車安全的基礎(chǔ),因此,鐵路站場(chǎng)信號(hào)遠(yuǎn)程監(jiān)控系統(tǒng)是信息化鐵路的重要組成部分,對(duì)于實(shí)現(xiàn)鐵路運(yùn)輸?shù)陌踩咝Ь哂蟹浅V匾囊饬x,可以帶來(lái)很可觀的經(jīng)濟(jì)效益。
The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place . the system takes tv sound fm signal from tv satation signal . the power rate of tv station signal to sound signal is ten to one . in the case of submerged by mussy weave and machine ' s hot noise , dispersed target signal is feeble 系統(tǒng)采用電臺(tái)的電視伴音調(diào)頻信號(hào),其中電臺(tái)信號(hào)與伴音信號(hào)功率之比基本為10 : 1 ,并且目標(biāo)散射信號(hào)較弱,一般情況下淹沒在雜波和機(jī)器熱噪聲之下,采用常規(guī)的脈沖檢測(cè)方法很難對(duì)遠(yuǎn)距離的目標(biāo)進(jìn)行檢測(cè),而以電臺(tái)直達(dá)信號(hào)作為參考與目標(biāo)回波信號(hào)進(jìn)行相關(guān)檢測(cè);系統(tǒng)中信號(hào)的相關(guān)處理會(huì)產(chǎn)生旁瓣,而強(qiáng)目標(biāo)的旁瓣會(huì)影響附近的弱目標(biāo)檢測(cè)。
Next , in order to resolve the problems existing in traditional web architecture which will be used for integrating railway station signaling monitoring network and railway information network , the object web techniques is introduced . after the discussion of the typical object web computing architectures , a new architecture based on activex / corba model is designed which embeds distributed object computing technology into web and has the merits of higher developing efficiency , faster running speed and better supporting heterogeneous platforms 然后,為了解決鐵路站場(chǎng)信號(hào)監(jiān)控網(wǎng)絡(luò)與鐵路基礎(chǔ)信息網(wǎng)絡(luò)集成方案中傳統(tǒng)web應(yīng)用體系存在的問(wèn)題,引進(jìn)了對(duì)象web技術(shù),分析比較了幾種流行的對(duì)象web計(jì)算體系結(jié)構(gòu)的優(yōu)缺點(diǎn),提出一種新型activex corba的模型來(lái)實(shí)現(xiàn)分布對(duì)象計(jì)算技術(shù)與web技術(shù)的融合,與前面幾種體系結(jié)構(gòu)相比,具有開發(fā)效率高,運(yùn)行速度快和跨平臺(tái)性能好等優(yōu)點(diǎn)。