發(fā)布時(shí)間：2018-01-28 06:11

  本文關(guān)鍵詞： 高速列車仿真 空間數(shù)據(jù)組織 數(shù)據(jù)管理　出處：《西南交通大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：高速列車數(shù)字化仿真平臺(tái)主要是由高速列車數(shù)字化仿真系統(tǒng)和高速列車系統(tǒng)仿真硬件支撐系統(tǒng)等幾部分組成。它的主要目標(biāo)是建立以高速列車為核心,考慮弓網(wǎng)、輪軌、流固等相互耦合的數(shù)字化仿真系統(tǒng),完成高速列車的系統(tǒng)動(dòng)力學(xué)仿真。由于數(shù)字化仿真系統(tǒng)的耦合仿真涉及列控、牽電、工務(wù)等專業(yè),導(dǎo)致數(shù)字化仿真系統(tǒng)涉及的數(shù)據(jù)種類多、格式不一,給數(shù)據(jù)組織、管理、訪問(wèn)和應(yīng)用帶來(lái)了挑戰(zhàn)。 針對(duì)高速列車數(shù)字化仿真平臺(tái)這種數(shù)據(jù)繁雜的情況,本文首先從數(shù)據(jù)需求分析入手,對(duì)仿真平臺(tái)所需要的空間數(shù)據(jù)進(jìn)行了梳理和歸類。我們將該仿真平臺(tái)所涉及的空間數(shù)據(jù),也即高速鐵路空間數(shù)據(jù),分為三類：基礎(chǔ)數(shù)據(jù)、專題數(shù)據(jù)和仿真結(jié)果數(shù)據(jù)�；A(chǔ)數(shù)據(jù)包括基礎(chǔ)地理空間數(shù)據(jù)、模型數(shù)據(jù)和場(chǎng)景數(shù)據(jù),專題數(shù)據(jù)包括牽引供電、工務(wù)、列車運(yùn)行控制等專業(yè)數(shù)據(jù)。仿真結(jié)果數(shù)據(jù)包括牽引供電、工務(wù)、列車運(yùn)行控制、列車等仿真結(jié)果數(shù)據(jù)。 然后設(shè)計(jì)了高速鐵路空間數(shù)據(jù)的組織管理以及訪問(wèn)方案。為了減少數(shù)據(jù)冗余,方便數(shù)據(jù)維護(hù)；免去其它專業(yè)管理空間數(shù)據(jù)的麻煩,減輕其它專業(yè)管理數(shù)據(jù)的壓力,我們采用集中統(tǒng)一管理方案對(duì)仿真平臺(tái)的所有空間數(shù)據(jù)進(jìn)行管理。針對(duì)鐵路線在地理空間上呈條帶狀分布,專題數(shù)據(jù)大都帶有里程信息的特點(diǎn),我們采用線性參照方案對(duì)鐵路專題數(shù)據(jù)進(jìn)行組織管理。針對(duì)其它專業(yè)有訪問(wèn)空間數(shù)據(jù)的需求,而所有空間數(shù)據(jù)己進(jìn)行了集中統(tǒng)一管理這一情況,我們采用數(shù)據(jù)服務(wù)方案解決其它專業(yè)的訪問(wèn)需求。 隨后設(shè)計(jì)了不同來(lái)源的異構(gòu)數(shù)據(jù)轉(zhuǎn)化為同質(zhì)空間數(shù)據(jù)的數(shù)據(jù)處理與維護(hù)方案。針對(duì)鐵路專題數(shù)據(jù)以屬性表形式存在,大多帶有里程信息這一情況,我們采用ArcGIS提供的線性參照工具處理專題數(shù)據(jù)。在處理的時(shí)候,我們首先需要?jiǎng)?chuàng)建路徑。這里我們選擇從鐵路中線創(chuàng)建路徑。由于鐵路中線的原始數(shù)據(jù)是以Excel表形式存在的,我們采用自己編制線路計(jì)算程序的方案來(lái)解決這一問(wèn)題。針對(duì)訪問(wèn)地圖數(shù)據(jù)和影像數(shù)據(jù)的需求,我們采用創(chuàng)建緩存的地圖服務(wù)方案。 最后開(kāi)發(fā)了高速鐵路GIS展示系統(tǒng)。系統(tǒng)實(shí)現(xiàn)了空間數(shù)據(jù)的加載、屬性信息的查詢、協(xié)同展示列車仿真結(jié)果等功能。 本文選擇ESRI公司的ArcGIS軟件作為空間數(shù)據(jù)組織和管理平臺(tái),運(yùn)用ArcSDE GeoDatabase管理空間數(shù)據(jù),ArcGIS Server發(fā)布和共享數(shù)據(jù),ArcEngine開(kāi)發(fā)數(shù)據(jù)展示系統(tǒng)。并以某高鐵線路的空間數(shù)據(jù)作為實(shí)驗(yàn)數(shù)據(jù),對(duì)其進(jìn)行組織管理和展示。結(jié)果表明,能很好的滿足高速列車數(shù)字化仿真平臺(tái)需求。
[Abstract]:The high-speed train digital simulation platform is mainly composed of high-speed train digital simulation system and high-speed train system simulation hardware support system, etc. Its main goal is to establish high-speed train as the core. Considering the coupling digital simulation system of pantograph, wheel-rail, fluid-solid and so on, the system dynamics simulation of high-speed train is completed. The coupling simulation of digital simulation system involves train control, traction, public works and so on. As a result, the digital simulation system involves many kinds of data and different formats, which brings challenges to data organization, management, access and application. In view of the complicated data of high-speed train digital simulation platform, this paper starts with the analysis of data demand. The spatial data needed by the simulation platform are sorted and classified. We divide the spatial data involved in the simulation platform, that is, the high-speed railway spatial data, into three categories: basic data. Thematic data and simulation data. Basic data include basic geospatial data, model data and scenario data, thematic data including traction power, public works. Simulation results include traction power supply, public works, train operation control, train operation control and so on. Then, the organization, management and access scheme of high-speed railway spatial data are designed to reduce data redundancy and facilitate data maintenance. Avoid the trouble of other professional management of spatial data, reduce the pressure of other professional management data. We use the centralized unified management scheme to manage all the spatial data of the simulation platform. According to the distribution of railway lines in geographical space, most of the thematic data have the characteristics of mileage information. We use the linear reference scheme to organize and manage the special railway data. For other majors there is the need to access spatial data, and all the spatial data have been centralized and unified management. We use data service solutions to address other professional access requirements. Then the paper designs a data processing and maintenance scheme to transform heterogeneous data from different sources into homogeneous spatial data. The railway thematic data exists in the form of attribute tables, most of which have mileage information. We use the linear reference tool provided by ArcGIS to process thematic data. We first need to create paths. Here we choose to create paths from the railway midline, since the raw data for the railway midline exists in the form of an Excel table. We use our own program to solve this problem. To meet the need of accessing map data and image data, we adopt a map service scheme that creates cache. Finally, a high-speed railway GIS display system is developed, which realizes the functions of loading spatial data, querying attribute information and displaying train simulation results. This paper chooses the ArcGIS software of ESRI Company as the spatial data organization and management platform, and uses ArcSDE GeoDatabase to manage spatial data. ArcGIS Server publishes and shares data. ArcEngine develops a data display system. The spatial data of a high-speed railway line is used as the experimental data. The results show that it can well meet the needs of high-speed train digital simulation platform.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P208;U270.1

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