Browsing by Author "Huang, Wei-Chin"

Now showing 1 - 4 of 4

A Novel Near-Infrared Array Based Arterial Pulse Wave Measurement Method
(2013)
Huang, Wei-Chin
;
Hou, Hsiang-Wen
;
Cheng, Ching-Ju
;
Wu, Shih-Yang
;
Chen, Tien-Ho
Recently there have been many studies regarding pulse wave velocity (PWV) produced by near-infrared light. However, these studies have used multiple probes with the synchronization problem. This paper proposed a new detecting method to measure PWV on a radial artery with multiple channels in one front-end sensor array. The system was implemented on a MSP430F169 platform and the PWV result was transmitted by RS232 and displayed on the computer screen after being processed. Finally, the PWV result was measured to validate the functionality of the system.
A Wireless Near-Infrared Imaging System Design for Breast Tumor Detection
(2014-01-01)
Cheng, Ching-Ju
;
Wu, Shih-Yang
;
Huang, Wei-Chin
;
Hou, Hsiang-Wen
;
Fang, Wai-Chi
In recent years, many near-infrared systems are used to detect breast tumor. However, the large instrument size and unfriendly interface make them hard to be accessed by users. In this paper, we proposed a portable, wireless and user friendly breast imaging system for breast tumor early detection. The system is implemented on self-designed platform combined with front-end sensors, DOT chip by TSMC 90nm technology, and commercial display devices. Furthermore, we confirm the functionality of the system by phantom testing.
An Advanced Patient Bedside Monitoring System Design Based on WBAN and Telemedicine Technologies
(2015)
Fahier, Nicolas
;
Huang, Wei-Chin
;
Chou, Chia-Ching
;
Fang, Wai-Chi
;
電機學院
An advanced patient-centric bedside monitoring system design based on wireless body area sensor networks and telemedicine technologies is proposed in this paper where each patient uses sensors with wireless transmission capabilities and transmit the physiological signals within a larger advanced network, which is connected to a secured section of the public network. This work intends to reduce the number of connections to the patient and proposes a wireless intelligent Intensive Care Unit (ICU) data security system to provide a wireless remote access to a patient\'s information anytime, and increase the information security to protect the patient\'s privacy.
An Effective Three Way PPG Acquiring and Signal Processing System by Using Square Wave Modulation
(2015)
Chou, Chia-Ching
;
Huang, Wei-Chin
;
Fang, Wai-Chi
;
電機學院
;
電子工程學系及電子研究所
In this paper, an effective photoplethysmograph (PPG) acquiring and signal processing system based on square wave modulation is proposed. Through modulating the acquired signals on different frequency square waves, it is effective to get PPG signals with high SNR by using simple carrier wave generators and reduce the computation load and power. The proposed system includes an exquisite and wearable three way PPG front-end sensor for acquiring PPG signals, an FPGA-based DSP for signal modulation and an analog circuit with an efficient anti-aliasing filter for eliminating serious harmonic waves of the carriers. Finally, the proposed DSP is scheduled for chip fabrication using TSMC 0.18 um CMOS technology to accelerate the performance and reduce the cost. The computation load is reduced by 98.8% compared to conventional system without effective signal modulation and filtering. The proposed DSP operates at 6MHz and reduce 35.2% of power consumption with only 0.58 mW of power compared with the FPGA-based DSP. The proposed system is able to acquire stable PPG signals to accurately derive the physiological indexes of cardiovascular system such as heart rate, respiratory rate, oxygen concentration, etc..