本文選題：室內(nèi)地圖 + 增量更新　； 參考：《河北師范大學》2017年碩士論文

【摘要】：隨著室內(nèi)移動位置服務的快速發(fā)展,人們對室內(nèi)地圖數(shù)據(jù)的現(xiàn)勢性和準確性提出了更高的要求,但是傳統(tǒng)的室內(nèi)地圖數(shù)據(jù)更新模式已經(jīng)無法對室內(nèi)地圖的變化信息做到及時更新,這嚴重制約了室內(nèi)地圖移動位置服務的進一步發(fā)展。如何及時地發(fā)現(xiàn)室內(nèi)地圖變化信息并快速高效地獲取這種變化信息將其反映到室內(nèi)地圖數(shù)據(jù)中,成為一個亟待解決的難題,同時成為了現(xiàn)如今室內(nèi)地圖廠商最為關心的問題。然而隨著互聯(lián)網(wǎng)技術的不斷發(fā)展及Web2.0概念的普及,越來越多的公眾參與到地理信息的共享中,在互聯(lián)網(wǎng)中會產(chǎn)生海量的地理信息,用戶生成內(nèi)容(User-generated Content,UGC)將對室內(nèi)地圖的更新與維護具有重大意義。同時移動終端設備的普及和功能的不斷改進,用戶可以隨時隨地發(fā)布和分享帶有地理信息的數(shù)據(jù)內(nèi)容,讓公眾不再單純是地理信息使用者,也成為了地理信息的提供者。因此充分利用公眾創(chuàng)造的地理信息,可以擴充傳統(tǒng)室內(nèi)地圖數(shù)據(jù)更新的數(shù)據(jù)來源,以實現(xiàn)室內(nèi)地圖的更新與維護,更好地滿足室內(nèi)移動位置服務的需要。但是UGC數(shù)據(jù)來源于公眾,用戶創(chuàng)建UGC的動機、知識背景、文化素養(yǎng)以及數(shù)據(jù)采集設備的精度差異可能會帶來數(shù)據(jù)質量問題。因此,本文提出基于UGC的室內(nèi)地圖數(shù)據(jù)變化發(fā)現(xiàn)與更新框架以及增量更新方法,以實現(xiàn)室內(nèi)地圖數(shù)據(jù)及時動態(tài)化的更新與維護。本文的具體研究內(nèi)容如下:(1)本文在分析了室內(nèi)地圖增量式更新的必要性基礎上,總結了國內(nèi)外在室內(nèi)地圖更新方面的研究現(xiàn)狀,并對比了傳統(tǒng)的版本式更新和增量更新方式,為了使室內(nèi)地圖數(shù)據(jù)能夠得到及時高效地更新,提出了UGC變化信息數(shù)據(jù)獲取、UGC變化信息數(shù)據(jù)預處理、增量信息的檢測到增量更新數(shù)據(jù)包的制作、增量更新數(shù)據(jù)包的發(fā)布組成的閉環(huán)式室內(nèi)地圖數(shù)據(jù)增量更新服務模式。(2)研究了UGC變化信息數(shù)據(jù)來源和獲取方式,并指出UGC數(shù)據(jù)作為室內(nèi)地圖數(shù)據(jù)的更新來源存在的問題,建立了UGC變化信息數(shù)據(jù)的預處理和審核機制,提出了基于UGC的室內(nèi)地圖數(shù)據(jù)變化發(fā)現(xiàn)與更新框架。(3)研究了基于矢量要素匹配的增量信息檢測方法,將采集到的UGC變化信息數(shù)據(jù)與歷史版本數(shù)據(jù)進行變化檢測,從中發(fā)現(xiàn)和提取增量信息。本文對支持增量更新的室內(nèi)地圖數(shù)據(jù)文件存儲結構和增量包的具體結構進行了設計,并使其保持一致。通過對增量標志的識別來確定準確的增量變化類別,不同的增量變化類別采取不同的增量更新操作。(4)在理論研究的基礎上,設計并實現(xiàn)基于UGC的室內(nèi)地圖數(shù)據(jù)變化發(fā)現(xiàn)與增量更新方法的室內(nèi)地圖更新系統(tǒng)。以公眾上傳的實例數(shù)據(jù)生成增量包,然后將當前版本的室內(nèi)地圖數(shù)據(jù)和增量包進行數(shù)據(jù)融合,生成最新版本的室內(nèi)地圖,實現(xiàn)了室內(nèi)地圖的增量式更新。
[Abstract]:With the rapid development of indoor mobile location services, people put forward higher requirements for the present and accuracy of indoor map data. However, the traditional updating mode of indoor map data can not update the change information of indoor map in time, which seriously restricts the further development of mobile location service of indoor map. How to find the change information of indoor map in time and get the change information quickly and efficiently to reflect it into the indoor map data has become a difficult problem to be solved, and it has become the most concerned problem of indoor map manufacturers nowadays. However, with the continuous development of Internet technology and the popularization of the concept of Web 2.0, more and more people participate in the sharing of geographic information, which will produce massive geographic information in the Internet. User-generated content (UGC) will be of great significance for updating and maintenance of indoor maps. At the same time, with the popularization of mobile terminal devices and the continuous improvement of functions, users can publish and share data content with geographical information anytime and anywhere, so that the public is no longer simply a geographical information user, but also become a geographical information provider. Therefore, making full use of the geographical information created by the public can expand the data source of traditional indoor map data updating, so as to realize the updating and maintenance of indoor map, and better meet the needs of indoor mobile location service. However, UGC data comes from the public, and the motivation, knowledge background, cultural literacy and accuracy of data acquisition devices may cause data quality problems. Therefore, this paper puts forward the change discovery and update framework and incremental updating method of indoor map data based on UGC, so as to realize the timely and dynamic updating and maintenance of indoor map data. The main contents of this paper are as follows: (1) based on the analysis of the necessity of incremental updating of indoor maps, this paper summarizes the current research situation of indoor map updating both at home and abroad, and compares the traditional methods of revision and incremental updating. In order to update the indoor map data in time and efficiently, the UGC change information data acquisition and UGC change information data preprocessing, the incremental information detection and the production of incremental update data packet are proposed. Closed-loop Indoor Map data Increment Update Service Model. 2) the data source and acquisition method of UGC change information are studied, and the problems of UGC data as the updating source of indoor map data are pointed out. The preprocessing and checking mechanism of UGC change information data is established, and the change discovery and update framework of indoor map data based on UGC is proposed. The incremental information detection method based on vector element matching is studied. The UGC change information data and the historical version data are detected and the incremental information is found and extracted. In this paper, the storage structure of indoor map data file and the concrete structure of incremental package are designed and kept consistent. Based on the theoretical research, the accurate incremental change category is determined by identifying the increment sign, and the different incremental change categories take different incremental update operation. An indoor map update system based on UGC is designed and implemented. The incremental package is generated from the instance data uploaded by the public, and then the current version of indoor map data and the incremental package are fused to generate the latest version of indoor map, and the incremental updating of indoor map is realized.
【學位授予單位】：河北師范大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：P208;P209

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