文章詳目資料

正修學報

  • 加入收藏
  • 下載文章
篇名 車用電子CAN bus實驗系統之設計
卷期 26
並列篇名 Design of a CAN bus experimental electronics system applied in vehicle
作者 黃新賢林宜賢
頁次 033-056
關鍵字 區域控制網路RFID加速度計感測CAN busRFIDaccelerometer sensor
出刊日期 201310

中文摘要

區域控制網路(Controller Area Network ,CAN)是一種非破壞性的仲裁機制,有確保較高優先等級的無延遲傳輸,在車用CAN bus系統上不需要設置主電腦,可達到裝置簡化、線路簡化、高安全性、網路架設便利、維修替換容易及價格低廉、適用於高雜訊與脈衝干擾的惡劣環境及廣域的控制場所中等優點。
本研究使用獨立的CAN 匯流排通訊介面元件,符合ISO 11898規範CAN 2.0B協議規定,設計一套兼具USB 2.0的終端控制實驗系統,並整合周邊裝置RFID系統、加速度計感測、溫溼度感測、超音波測距、胎壓偵測、一氧化碳偵測、馬達驅動等7項實驗模組。實驗中包含CAN 2.0B匯流排多節點鏈結暨自動偵錯檢測模式、USB描述定義及電腦介面管理、TTCAN(Time Triggered CAN)管控方式整合多重感測與驅動裝置實驗等,實驗過程採用可程式管理之控制視窗。
本系統設計具有體積小、價格低廉、可在CAN匯流排中隨機裝設等優點之實驗模組,支援USB 2.0 Full speed熱拔插功能的終端機監控,使實驗環境中的任何一具節點模組,執行終端機監控或資訊傳遞的任務,並設計RS232、SPI、I2C等通用通訊協定擴展周邊裝置,讓實驗更豐富和靈活。

英文摘要

The Controller Area Network is based on a non-destructive arbitration mechanism to ensure high priority delay-free transmission. It is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer so that the requirements of installation simplification, line simplification, high security, and convenient network setup, easy and low maintenance cost can be achieved. It also can be adapted to the harsh environment of noise and pulse interference and can be used in wide area control sites.
This research work utilizes independent CAN bus communication interface components which meet CAN 2.0B, ISO 11898 specification compliance agreement to design a Terminal Control Experiment System that is equip with USB 2.0 transmission capacity and is integrated with seven experimental modules; RFID system of peripheral devices, accelerometer sensor, temperature and humidity sensor, tire pressure detector, carbon monoxide detector and motor drives. The experiment contains CAN 2.0B bus multi-node links and automatic debugging detection mode, USB described in the definition and computer interface management, TTCAN(Time Triggered CAN) control integrate multiple sensing and driving experiments. Programmable control window of process management was applied through the experiment to increase operability and future development potential.
The system is designed to be small in size, low cost and experiment modules can be randomly attached to the CAN bus. The advantages of USB 2.0 includes supports for Full speed hot plug features terminal monitor allow any node module can execute terminal monitoring or information transfer tasks. It is also designs to be expand with RS232, SPI, I2C and other common peripheral device communication protocol, so it can be more flexible to changes in experiments.