數位航電系統已經是現代航空系統的主流。數位化電子系統以特定的匯流排介面建立各終端機間的聯繫，並具備大量不同的線上抽換單元（line-replaceable units, LRUs）的特點。整合模組航電（Integrated Modular Avionics, IMA）是將一般標準的元件或模組，依不同的功能需求整合到一個或多個抽換櫥以實現航電功能。
　　在大型噴射客機IMA系統的架構下，各個航電設備或抽換櫥可透過ARINC 629通用數據匯流排相互連結整合。但對於一般的航空飛行器而言，ARINC 629數據匯流排太過龐大、複雜且其建置成本過高。因此，尋求適合一般小型航空飛行器的數據匯流排系統，是值得被提出來做為研究的。本論文提出CAN (Controller Area Network)數據匯流排和TTP/C數據匯流排，做為研究的目標。
　　然而因TTP數據匯流排的可用資源少於CAN數據匯流排，本論文將焦點集中在CAN數據匯流排。論文的重心在介面模板的初步設計和通訊協定系統的測試及驗證。CAN IP發展板主要是由CAN控制器SJA1000和AT89C52 微處理器所構成。使用者人機介面則包括數據的傳送與控制命令的接收。而IP發展板也能夠連接到GPS 模組做測試。這些成果將對尋求適合小型航空飛行器的數據匯流排系統有莫大的貢獻。

　　　Today digital avionics system has become a main role of modern aviation system and is characterized by a large number of different line-replaceable units (LRU). Digitized electronics systems are interconnected through a specified data bus interface to each terminal. The Integrated Modular Avionics (IMA) is an idea to realize the avionic functions by common standardized elements or modules to be integrated into one or more units or cabinets for different functional domains. Several avionics hardware or cabinets are interconnected by ARINC 629 global data buses into an integrated system for performing all functions onboard of the aircraft. However for general aircraft avionics, ARINC 629 data bus organization is too huge, expensive and complicate to implement. The goal of this thesis is to study and provide an adaptable and useful interface bus system for small aircraft. CAN (Controller Area Network) bus and TTP field bus should be a good choice to study.
　　Since TTP bus resource is less available than CAN bus, this thesis is started from designing their interface module board. The thesis puts emphasis on CAN bus architecture preliminary designs, system test and verification of communication protocol. The CAN IP board chosen from CAN controller SJA1000 and AT89C52 microprocessor is designed and fabricated with the human interface including data transmission and receiving control command. The IP board may also be connected to GPS module. This will contribute to an implementation for avionics data bus in general aviation aircraft.

中文摘要
ABSTRACT
誌謝
CONTENTS .............................................I
CAPTIONS OF FIGURES .............................................V
CHAPTER I INTRODUCTION .............................................1
1.1 Introduction .............................................1
1.2 Procedure of Research .............................................2
1.3 Organization of This Thesis .............................................3
CHAPTER II DIGITAL AVIONICS SYSTEM .............................................4
2.1 Integrated Modular Avionics .............................................4
2.1.1 History .............................................4
2.1.2 Goals of IMA .............................................5
2.1.3 Architecture of IMA .............................................6
2.2 Line Replaceable Modules (LRMs) .............................................9
2.3 Airframe Data Buses ............................................11
2.3.1 ARINC 629 Data Bus ............................................11
2.3.2 TTP (Time-Triggered Protocol) Field Bus ............................................13
2.3.3 CAN (Controller Area Network) Bus ............................................17
2.3.4 Comparison of CAN and TTP ............................................21
2.4 Summary of This Chapter ............................................25
CHAPTER III CONTROLLER AREA NETWORK ............................................26
3.1 Frame Type ............................................26
3.1.1 Data Frame ............................................27
3.1.2 Remote Frame ............................................29
3.1.3 Error Frame ............................................29
3.1.4 Overload Frame ............................................31
3.1.5 Interframe Spacing ............................................32
3.2 Arbitration ............................................33
3.3 Error Detecting ............................................34
3.4 Advantages and Disadvantages of CAN ............................................36
CHAPTER IV SYSTEM ARCHITECTURE ............................................37
4.1 Test Architecture ............................................37
4.2 Component of CAN IP Board ............................................38
4.2.1 CAN Controller- SJA1000 ............................................39
4.2.2 CAN Transceiver- PCA82C250 ............................................40
4.2.3 Optical Couplers- PC910 ............................................42
4.2.4 Voltage Regulators- MIC29150 ............................................43
4.2.5 Voltage Regulators- LP2950 ............................................43
4.3 Circuit Design of CAN IP Board ............................................44
4.4 Programming ............................................47
4.4.1 User Interface ............................................47
4.4.2 Firmware ............................................48
4.4.2.1 Initialization ............................................48
4.4.2.2 Transmission ............................................50
4.4.2.3 Reception ............................................50
CHAPTER V TEST AND ANALYSIS ............................................52
5.1 Process of Circuit System Test ............................................52
5.2 Data Message Transmission ............................................52
5.2.1 PC Side ............................................52
5.2.2 CAN IP Module Board Side ............................................53
5.2.3 Outcome of Test ............................................56
5.3 Hardware Test ............................................59
5.3.1 GPS Module ............................................59
5.3.2 Outcome of GPS Module Test ............................................61
5.3.3 VOR/LOC Glideslope Indicator- KI206 ............................................62
5.3.4 Outcome of KI206 Test ............................................63
5.3.5 Virtual measuring meter ............................................65
5.4 Summary ............................................66
CHAPTER VI CONCLUSION AND FUTURE STUDY ............................................67
6.1 Conclusions ............................................67
6.2 Future Study ............................................69
REFERENCES ............................................70
ACRONYMS ............................................72

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