應用於直流電力線通訊之控制網路CANbus

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姓名

陳冠儒(Kuan-Ru Chen) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

應用於直流電力線通訊之控制網路CANbus
(On Controller Area Network CANbus Over DC Power Line Communication)

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摘要(中)

為了提供乘客安全和舒適的需求，現今車用電子控制元件越來越多，其中包含了安全系統像防鎖死煞車系統和安全氣囊等。這些控制訊號都是經由車用通訊網路來將資料傳遞電腦，車用網路中最可靠的就是控制區域網路CAN。為了能有效降低車上的控制線數量，來減少汽車成本，本論文提出應用於直流電力線通訊之控制網路CANbus，本論文包含兩個主題:應用於DC-PLC收發機系統，以及有仲裁機制的DC-PLC。
第一個主題建立能在直流電力上傳送和接收的模擬平台，由於FSK架構簡易且抗雜訊力佳，在直流電力線上易於偵測，我們以數位調變技術FSK形式來傳送資料，傳送端調變訊號到電力線上，接收端透過解調得到原本的數位訊號。第二個主題具有仲裁機制的DC-PLC，在發生訊息碰撞時，要能判斷出優先權高低避免發生錯誤，因此，我們設計固定兩種頻率的載波來代表0和1，而兩種頻率之間相差兩倍，軟體部分以simulink模擬，最後以FPGA實現驗證。

摘要(英)

Electronic devices have been used more and more in vehicles to insure the safety and comfortness of the passengers. These include both safety systems, such as antilock brake system (ABS), and Supplementary Restraint System (SRS). In most cases, automobile manufacturers have chosen to transmit data from sensors to computers via dedicated communications networks, using standardized protocols like controller area network (CAN). To save the cost and reduce the amount of wires in the car, this thesis proposes on controller area network CANbus over power line communication. This thesis is composed of two parts: one is a system of DC-PLC transceiver, and the other is an arbitration mechanism of message collision.
In the first topic, a system of DC-PLC transceiver can communicate over DC power line. We developed a FSK modulation technique which has several advantages over other schemes. The transmitter sends data to power line and receivers demodulate the signals from power line. The second topic is a DC-PLC arbitration method which can resolve the message collision. We devised a carrier at two frequencies, f_1 and f_0, representing logic“1”and logic“0”, respectively. The data rate is as high as f_1, where f_0 is twice as f_1. We used simulink for software simulation, and hardware implemented by FPGA for emulation.

關鍵字(中)

★ 電力線通訊
★ 控制區域網路

關鍵字(英)

★ PLC
★ CAN

論文目次

摘要 I
Abstract II
誌謝 III
目錄 IV
圖目錄 VI
表目錄 VIII
第一章緒論 1
1.1 研究背景簡介 1
1.2 研究動機 2
1.3 論文架構 3
第二章汽車通訊概論 4
2.1 車用網路發展 4
2.2 車用網路標準與分類 6
2.3 Controller Area Network 8
2.3.1 CAN網路協定介紹 8
2.3.2 CAN資料結構 10
2.3.2 CAN資料傳輸方式 12
第三章直流電力線通訊 15
3.1 電力線概述 15
3.2 電力線傳輸的分析與調變方法 16
3.2.1 電力線通訊調變技術 17
3.2.2 高資料傳輸率的FSK通訊協定 20
3.3 電力線在車用網路上的設計 26
3.3.1 PLC上仲裁機制設計 26
3.3.2 FSK頻率比較分析 27
3.3.3 DC-PLC調變原理 32
3.3.4 DC-PLC解調原理 33
第四章車用DC-PLC的模擬與驗證 35
4.1 實驗架構與設備 35
4.2 模擬FSK在DC-PLC傳送和接受 37
4.3 訊號衝突仲裁機制 41
4.3.1 DC-PLC無訊號衝突模擬分析 41
4.3.2 DC-PLC於訊號衝突模擬分析 43
4.4 DC-PLC傳送端和接受端驗證 46
4.4.1 傳送端結果與分析 46
4.4.2 接收端結果與分析 47
第五章結論 52
5.1 結論 52
5.2 未來改進方向 52
參考文獻 54

參考文獻

參考文獻
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指導教授

魏慶隆、薛木添
(Chin-Long Wey、Muh-Tian Shiue)

審核日期

2013-5-15

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