架構於 IEEE 802.15.4 低速率無線個人區域網路之全雙工語音系統設計與應用

Design and Application for a Full-Duplex Voice System over IEEE 802.15.4 Low-Rate Wireless Personal Area Network

邱紹沅(Shao-Yuan Chiu)

指導教授 ： 曹恆偉

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2007年)

https://doi.org/10.6342/NTU.2007.01069

摘要

無線網路在近年來的發展相當的快速，目前無線個人區域網路（WPAN）出現一個新的發展方向，不同於之前以高傳輸資料量，廣泛傳輸距離為主要目標，新的網路應用瞄準在一個低功率、短傳輸距離、簡單即行的網路，大大降低裝設及使用成本，更促使電子電機工程學會（IEEE）開始推廣一項名為 IEEE 802.15.4 的規格標準，將大量應用在工廠製程，居家環境，醫療看護方面的監測或感應控制系統，此種以低速率小範圍傳輸資料的無線傳輸規格，我們又稱為低速率無線個人區域網路（Low-Rate Wireless Personal Area Networks）－簡稱LR-WPAN。
本論文將藉由 IEEE 802.15.4 的省電優勢以及 Zigbee 的網路概念，在居家環境或是辦公場所內，架構在已建好的IEEE 802.15.4 環境中，根據本論文所提出的裝置與協調器傳送機制，在適當的硬體上，使用C程式語言撰寫各函式以及中斷來實現全雙工語音的傳輸，以提供往後應用者的參考，期望在無線低功率和低成本的網路應用成為主流時，可再增加其附加性讓生活更為方便。

關鍵字

Zigbee ； IEEE 802.15.4 ； 無線個人區域網路 ； 感應控制系統 ； 低功率 ； 差分脈衝碼調變

並列摘要

Wireless networking has developed rapidly in recent years. Currently, Wireless Personal Area Network （WPAN）becomes a new direction of development. Different from the past, high data rate transmission, extensive transmission distance isn’t the primary purpose anymore . In order to reduce the cost of installation and usage, such wireless network needed to be more efficient, more simple, and applied to shorter transmission. It also prompted the Institute of Electrical and Electronics Engineering （IEEE）began to promote a named IEEE 802.15.4 specifications standard, large-scale application in a factory process, home environment, health care and the monitoring sensor control system, such a low rate of small-range transmission of wireless specifications, We also call it low-rate wireless personal area networks referred to the LR-WPAN.

In this thesis, through IEEE 802.15.4, the advantage of saving electricity and the general idea about Zigbee, in the home environmental or working place, the structure has been built into the IEEE 802.15.4. According to the papers which presented the transmission mechanism of device and coordinator, with the appropriate hardware, using C programming language to built function and interruption. In order to achieve full-duplex voice transmission, and offer the references for the future applications, we expect that during the low-power and low-cost wireless network applications become mainstream, it can increase their additions and gives our lives more convenient.

並列關鍵字

Zigbee ； IEEE 802.15.4 ； Wireless Personal Area Network ； sensor control system ； DPCM ； low power

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[ 1 ] IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area