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研究生： 黎永昇
Li, Yung-Sheng
論文名稱： 應用GPRS 作監視與控制之嵌入式系統設計
The Embedded Surveillance and Control System design Using GPRS
指導教授： 林清一
Lin, Chin E.
學位類別： 碩士
Master
系所名稱： 工學院 - 航空太空工程學系
Department of Aeronautics & Astronautics
論文出版年： 2004
畢業學年度： 92
語文別： 英文
論文頁數： 92
中文關鍵詞： 電子地圖 、嵌入式系統 、伺服馬達 、控制 、監視
外文關鍵詞： control, linux, GPS, Servo, motor, GIS, ARM, GPRS, Embedded system
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    • 本文主要建制一個完整的系統。整合GPS﹐伺服馬達與嵌入式系統﹐透過GPRS網路通訊將嵌入式系統上的GPS定位資料回傳至伺服端﹐並顯示在伺服端的電子地圖且伺服端控制嵌入式系統上的伺服馬達。本系統包括三個主要部分﹐使用者端﹐備份系統與伺服端。備份系統是以現有的無線傳輸系統所建製﹐它主要的功能是用來選擇使用者端或備份系統控制伺服馬達。而使用者端主要的功能是用來主動回報GPS的定位資訊與控制伺服馬達﹐它可以接受伺服端要求換手並交由其它的伺服端進行監視與控制或接受伺服端要求改變GPS資料更新速度。使用者端是一個手持式或用於載具的系統﹐在設計的初期就要考量到體積重量大小與使用的簡易度。伺服端主要是由個人電腦所組成﹐它主要功能是用來接收使用者端傳過來的資料並儲存至資料庫中﹐送達控制命令上使用者端﹐資料的傳送要求快速且高正確性。為了日後的修改方便﹐本文的系統不論在軟體或者硬體在設計上都保留極佳的彈性。

    The purpose of this thesis is to build an overall system, which integrates GPS data into GIS mapping and servo control through GPRS mobile communication with an Embedded system in this design. The proposed system contains three major parts of backup system, client system and server system. The backup system is mainly composed of existing RF system that handles the functions of select the control system. The backup system or client system controls the servo motors. The main function of client system is auto-reporting data, such as GPS data and receiving data, such as servo motors control command that change servo command and GPS updating time. A handy set for easy-carrying on individuals or vehicles is designed and design its size and weight that is strictly limited. The server system is mainly composed of a personal computer that handles the functions of receiving, sending control command, processing and saving data being sent from client systems with a requirement of fast and stable processing. The proposed system is flexible in use because both hardware and software are able to be adjustable in order to satisfy different purposes in further applications. The proposed system concept is demonstrated in detail designs.

    ABSTRACT VI CONTENTS VIII LIST OF TABLES XI LIST OF FIGURES XII CHAPTER I BACKGROUND AND MOTIVATION 1 1-1 Background and Motivation 1 1-2 Comparison of GSM/GPRS/3G 1 1-2-1 2G Standards 2 1-2-2 2.5G Standards 3 1-2-3 3G Standards 5 1-3 Organization of this Thesis 7 CHAPTER II TECHNOLOGY OVERVIEW 10 2-1 Introduction of UDP 10 2-2 Introduction of TCP/IP 11 2-3 Wireless Data Communication Technique 16 2-4 Surveillance Technique 18 CHAPTER III THE EMBEDDED LINUX SYSTEM 20 3-1 Embedded System 20 3-2 The Embedded System Environment 20 3-2-1 Boot Loader 21 3-2-2 Kernel 21 3-2-3 File System 22 3-2-4 Library 22 3-2-5 Tools 23 3-3 The Embedded System Development Environment 23 3-4 The Embedded System Program Development 24 CHAPTER IV SYSTEM ARCHITECTURE 26 4-1 Introduction 26 4-2 System Description 27 4-3 The Client Segment Architecture 29 4-3-1 Embedded Linux System 30 4-3-2 GPRS module 33 4-3-3 GPS module 35 4-3-4 The 89c52 Control Unit 36 4-3-5 Route Access 42 4-4 The Server Segment Architecture 43 4-4-1 Main Control Interface 47 4-4-2 Flight Control Interface 51 4-4-3 Control interface hardware 55 4-5 The Backup Segment Architecture 55 4-6 Discussion 57 CHAPTER V SYSTEM TESTING 58 5-1 Testing Strategy 58 5-1-1 Unit Tests 59 5-1-2 Double Tests 59 5-1-3 System Integration Tests 60 5-2 Communication Experiment 60 5-2-1 TCP Delay Experiment 60 5-2-2 UDP Delay Experiment 62 5-3 System Experiment 64 5-3-1 Servo Motor Torque and Current Experiment 65 5-3-2 Servo Motor Time Response 67 5-4 Discussion 69 CHAPTER VI CONCLUSION 71 REFERENCES 74 APPENDIX A 75 VITA 79

    [1] BUSYBOX, available from http://www.busybox.net/

    [2] The μClinux Directory, available from http://home.at/uclinux/

    [3] μClibc—a C library for the Embedded system, available from
    http://www.uclibc.org/

    [4] μClinux Embedded Linux/Microcontroller Project, available from
    http://www.uclinux.org/

    [5] Linoleum Linux Programming Resources
    http://leapster.org/linoleum/

    [6] WISCORE Inc., an Embedded Internet appliances design and service center
    http://www.wiscore.com/en/

    [7] The SAMSUNG corporation website, available from
    http://www.samsung.com/

    [8] Delphi K. Top website, available from http://delphi.ktop.com.tw/default.asp

    [9] W. Ajib and P. Godlewski, “Service Disciplines Performance for WWW Traffic in GPRS System”, 3G Mobile Communication Technologies, Conference Publication No. 471, IEE 2000.

    [10] Craig Hollabaugh, Ph.D, “Embedded Linux – Hardware, Software, and Interfacing”, Dec, 2002.

    [11] 揚明峰，“8051單晶片C語言設計實務”，2003.01。

    [12] 黃嘉輝，”C++Builder揭開互助社群軟體-Napster的秘密Internet與TCP/IP進階程式設計” ，2001.02。

    [13] 徐千洋，”Linux C函式庫參考手冊” ，2001.04。

    [14] 施威銘，”TURBO C語言實務” ，1993.08。

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