應用於無線生醫感測之數位電路設計

Digital Circuit Design for Wireless Bio-medical Sensor

李義欽(Yi-Chin Lee)

指導教授 ： 呂學士

國立臺灣大學/電機資訊學院/電子工程學研究所/碩士(2009年)

https://doi.org/10.6342/NTU.2009.02981

摘要

由於跨領域結合已是社會之所趨，因此本論文整合生醫與電路設計，提供給病患們方便迅速的偵測生理狀況，諸如：血壓、心跳、心電圖、血氧量等生醫訊號。如此便能夠大大地增加病人們的安全。另外隨著無線通訊技術的發展，及半導體製程技術的進步，量測方式透過晶片之後就不再佔有巨大的體積，進而達成自動化量測後，也更適合每個人使用。
我們使用台積電2P4M 0.35um標準CMOS製程來實現我們所設計之感測點系統晶片，其內部電路包含特定應用積體電路微控制器、ASK傳送器、OOK接收器、儀器放大器、轉阻儀器放大器、類比數位轉換器及電壓調節器、類比4選1多工器。微控制器由我負責，其它則由實驗室其它學長及同學負責設計。此微控制器為一種特定應用在生醫領域的數位電路，與類比電路的溝通橋樑與封包格式由我們實驗室自行設計開發，主要特點為節省功率消耗、小面積、方便應用。
此SOC晶片具備接收指令，傳送生醫訊號的功能，透過無線收發機傳送至遠端監控中心，以達到我們當初設計此一晶片的目的─「自動量測，遠端監控」。傳送出去的訊號只需透過接收機並透過遠端電腦的疾病資訊判斷後，即可隨時提醒使用者的健康狀況。

關鍵字

微控制器 ； 中央處理單元 ； 系統單晶片 ； 無線感測網路 ； 無線生醫量測

並列摘要

Because the combination of many fields is the trend nowadays, we design a circuit applied for bio-medical sensor to measure health condition of patients instantly. Therefore, the patients will get more comfortable attention by bio-medical SOC chip.
We plan to integrate wireless communication, electrical sensor, and software by semiconductor industry and information technology to achieve low-cost, long-tern, small and reliable medical sensors. We design a SOC chip that has the ability of wireless data transmitting and receiving, controllable behavior, and sensing. This SOC includes an ASIC microcontroller, two amplifiers to enlarge different type of signals, a wireless receiver for receiving command, a wireless transmitter for transmitting data, an analog-to-digital converter (ADC) to convert analog signal to digital, two regulators for saving power, and a 4-to-1 multiplex for choosing how many signal passes. All of them are integrated in one single SOC chip. Sensors for detecting biological signal are placed externally.

並列關鍵字

Microcontroller ； Central Processing Unit ； System on a Chip ； Wireless Sensor Network ； Wireless Bio-medical Sensor

參考文獻

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[3.7] Kevin Yeh, “Microcontroller Design for Wireless Sensor Network”, National Taiwan University MS. Thesis, July 2008.