A UHF RFID Tag SOC with ECG Acquisition for Intelligent Healthcare Systems
碩士 === 國立中正大學 === 電機工程研究所 === 101 === In this thesis, A wireless transceiver system for ECG acquisition has been implemented. We propose a novel method using Radio Frequency Identification(RFID) to detect the heartbeats of patients immediately. The target of our system is to achieve the purpose of l...
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ndltd-TW-101CCU004420322015-10-13T22:12:38Z http://ndltd.ncl.edu.tw/handle/84426065000655864207 A UHF RFID Tag SOC with ECG Acquisition for Intelligent Healthcare Systems 應用於智慧型居家看護系統心電訊號擷取之超高頻自動辨識標籤晶片 Lai Wei-Jhih 賴韋志 碩士 國立中正大學 電機工程研究所 101 In this thesis, A wireless transceiver system for ECG acquisition has been implemented. We propose a novel method using Radio Frequency Identification(RFID) to detect the heartbeats of patients immediately. The target of our system is to achieve the purpose of low-power, low-cost. The system chip is composed of four parts which are a RF-Front-End、a power management、a digital control and a analog-front-end(AFE). This thesis mainly consists of two parts of the RFID system. The first part is the RF front-end that contains a charge pump, an ASK demodulator, and a start-up circuit. The second part is the power management that covers a low-dropout regulator, a power-on-reset circuit, and a bandgap reference circuit. We propose the semi-passive RFID system to acquire ECG signals. First of all, the high-frequency signal is received by the antenna into the Tag. The RF-Front-End circuit would demodulate the 925Mhz carrier into digital signal. The start-up circuit is turned on at the same time, and the power circuit will supply the voltage to the RFID chip. Moreover, the POR would produce a pulse signal to reset all the logic circuits. After the system is turned on, the ECG signals is acquired by AFE instantly and the tag would transmit the signals to Reader by backscattering. The RF-Front-End and power management circuits are implemented in this thesis. The capacitor array and DDC(Distance-to-Digital) circuits are used to correct the error bit caused by the process variation and to solve the demodulation issue by limiter switches as the tag is too close to Reader. And the power circuit can also provide stable voltages to our chip. The overall circuit with core area of 0.965x0.965(mm2) has been implemented in TSMC 0.18μm 1P6M CMOS process technology. Measurement results show that the carier signal can normally be demodulated to digital core. In the future we will also make correction decoding algorithm integrated into the chip to handle the communication better. Lee Shun-Yuh Jhu Yuan-Sa 李順裕 朱元三 2013 學位論文 ; thesis 116 zh-TW |
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碩士 === 國立中正大學 === 電機工程研究所 === 101 === In this thesis, A wireless transceiver system for ECG acquisition has been implemented. We propose a novel method using Radio Frequency Identification(RFID) to detect the heartbeats of patients immediately. The target of our system is to achieve the purpose of low-power, low-cost. The system chip is composed of four parts which are a RF-Front-End、a power management、a digital control and a analog-front-end(AFE). This thesis mainly consists of two parts of the RFID system. The first part is the RF front-end that contains a charge pump, an ASK demodulator, and a start-up circuit. The second part is the power management that covers a low-dropout regulator, a power-on-reset circuit, and a bandgap reference circuit.
We propose the semi-passive RFID system to acquire ECG signals. First of all, the high-frequency signal is received by the antenna into the Tag. The RF-Front-End circuit would demodulate the 925Mhz carrier into digital signal. The start-up circuit is turned on at the same time, and the power circuit will supply the voltage to the RFID chip. Moreover, the POR would produce a pulse signal to reset all the logic circuits. After the system is turned on, the ECG signals is acquired by AFE instantly and the tag would transmit the signals to Reader by backscattering. The RF-Front-End and power management circuits are implemented in this thesis. The capacitor array and DDC(Distance-to-Digital) circuits are used to correct the error bit caused by the process variation and to solve the demodulation issue by limiter switches as the tag is too close to Reader. And the power circuit can also provide stable voltages to our chip.
The overall circuit with core area of 0.965x0.965(mm2) has been implemented in TSMC 0.18μm 1P6M CMOS process technology. Measurement results show that the carier signal can normally be demodulated to digital core. In the future we will also make correction decoding algorithm integrated into the chip to handle the communication better.
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author2 |
Lee Shun-Yuh |
author_facet |
Lee Shun-Yuh Lai Wei-Jhih 賴韋志 |
author |
Lai Wei-Jhih 賴韋志 |
spellingShingle |
Lai Wei-Jhih 賴韋志 A UHF RFID Tag SOC with ECG Acquisition for Intelligent Healthcare Systems |
author_sort |
Lai Wei-Jhih |
title |
A UHF RFID Tag SOC with ECG Acquisition for Intelligent Healthcare Systems |
title_short |
A UHF RFID Tag SOC with ECG Acquisition for Intelligent Healthcare Systems |
title_full |
A UHF RFID Tag SOC with ECG Acquisition for Intelligent Healthcare Systems |
title_fullStr |
A UHF RFID Tag SOC with ECG Acquisition for Intelligent Healthcare Systems |
title_full_unstemmed |
A UHF RFID Tag SOC with ECG Acquisition for Intelligent Healthcare Systems |
title_sort |
uhf rfid tag soc with ecg acquisition for intelligent healthcare systems |
publishDate |
2013 |
url |
http://ndltd.ncl.edu.tw/handle/84426065000655864207 |
work_keys_str_mv |
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