【正文】 ion about moving objects. By using wireless equipments, position of people can be located precisely. In the worldwide environment, wireless location systems such as E911 or E122 have already been existed for a while. However, in the domestic environment, not enough wireless location systems have been developed, especially for the systems that can provide accurate location service within short distance under indoor circumstances. As for the background knowledge introduction, this paper firstly shows the wireless technologies and wireless location technologies. You will see the concepts about GPS and UWB. At the other hand, realtime graphics rendering and image displaying is usually used in wireless location system. So this paper also introduces relative 3D graphics technologies. Technologies such as Google Sketchup, OGRE and Collision Detection, are given special attention in this paper. After showing background technologies, this paper proposes a wireless location system: iLocate Wireless Location System. It’s a system that is used for doing precisely location within short distances. iLocate is divided into three main subsystems: iLocateEngine, iLocateServer and iLocateClient. And this paper will introduce the design and implementation for them, as well as showing the running effect. iLocateEngine is used for providing uniformed location information for upper layers. iLocateServer is used for municating with iLocateEngine and iLocateClient, as well as database management. iLocateClient is used for acquiring realtime data of scenes and moving objects, displaying realtime data with 2D/3D graphics, and providing graphics manipulating interfaces for users (Orbit, Pan and Zoom). iLocate is a prehensive solution that involves both hardware and 南京大學(xué)碩士學(xué)位論文 摘要 III software ponents. It aims at developing precise wireless location system for objects within short distance. So far, iLocate has been deployed into some places and has won its reputation. iLocate has good feasibility and extensibility. Keywords: Wireless Location, iLocate, UWB, Wireless Inter 南京大學(xué)碩士學(xué)位論文 目錄 IV 目錄 摘 要 ............................................................. I Abstract........................................................... II 第一章 緒 論 ..................................................... 1 無線定位技術(shù) ................................................ 1 無線定位技術(shù) ........................................... 1 無線定位技術(shù)的發(fā)展?fàn)顩r ................................. 3 選題意義 .................................................... 4 本文的工作 .................................................. 5 第二章 無線定位相關(guān)技術(shù) ............................................. 7 GPS 無線定位 ................................................. 7 GPS 的組成 ............................................. 7 GPS 的定位方法 ......................................... 8 GPS 的誤差 ............................................. 9 GPS 定位技術(shù)小結(jié) ...................................... 11 UWB 無線定位 ................................................ 11 UWB 無線技術(shù) .......................................... 11 UWB 特點(diǎn)與發(fā)展?fàn)顩r .................................... 12 UWB 與其它技術(shù) ........................................ 15 UWB 定位技術(shù)小節(jié) ...................................... 16 第三章 3D 模型處理技術(shù) ............................................. 18 Google Sketchup ............................................ 18 Google Sketchup 的特點(diǎn) ................................ 18 Google Sketchup 與其它 3D 模型軟件 ..................... 20 OGRE 技術(shù) ................................................... 21 OGRE.................................................. 21 MOGRE................................................. 24 碰撞檢測技術(shù) ............................................... 24 第四章 iLocate 無線定位系統(tǒng) ........................................ 26 iLocate 無線定位系統(tǒng) ........................................ 26 iLocate 系統(tǒng)開發(fā)背景 .................................. 26 iLocate 系統(tǒng)功能 ...................................... 26 iLocate 系統(tǒng)應(yīng)用場景 .................................. 27 iLocate 系統(tǒng)總體設(shè)計(jì) ........................................ 28 iLocateEngine 模塊 .......................................... 29 總體設(shè)計(jì) .............................................. 29 坐標(biāo)轉(zhuǎn)換 .............................................. 30 功能模塊 .............................................. 33 iLocateServer 模塊 .......................................... 36 Logic 模塊 ............................................ 37 iLocate 通信協(xié)議 ...................................... 38 iLocateClient 模塊 .......................................... 42 Net 模塊 .............................................. 43 南京大學(xué)碩士學(xué)位論文 目錄 V MOGRE 與 MogreNewt 模塊 ................................ 44 碰撞檢測插件 .......................................... 44 GUI 模塊 .............................................. 45 第五章 iLocate 無線定位系統(tǒng)實(shí)現(xiàn) .................................... 47 iLocateEngine 模塊 .......................................... 47 對外接口模塊（ Middleware for Location System） ........ 47 位置服務(wù)模塊（ Location Fusion System） ................ 48 iLocateServer 模塊 .......................................... 51 網(wǎng)絡(luò)連接的處理 ........................................ 51 其它功能 .............................................. 53 iLocateClient 模塊 .......................................... 54 Net 模塊 .............................................. 54 MOGRE 與 Kernel 模塊 ................................... 57 GUI 模塊 .............................................. 58 第六章 總結(jié)與展望 .................................................. 60 論文小結(jié) ................................................... 60 本文背景 .............................................. 60 本文工作 .............................................. 61 工作展望 ................................................... 62 參 考 文 獻(xiàn) ...................