Browsing by Author "Fan, Ching-Chih"

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Electroencephalogram Signal Detection with Smart Phone Applications
(2015)
Huang, Wei-Hsin
;
Yang, Chia-Hao
;
Hsu, Terng-Ren
;
Fan, Ching-Chih
;
資訊工程學系
Our purpose is to construct a low-cost EEG measurement system that can detect high accuracy brain wave. Our proposal includes following characteristics: low cost, compact size, portability, and easy to use. The proposed device employs the embedded microcontroller to be in charge of whole system. EEG analog front-end circuits of our proposition are based on operational amplifiers that are applied to construct instrumentation amplifiers, high-pass filters, low-pass filters, middle-amplifiers, post-amplifiers and DC offset circuits. For PC-based applications, we program a brief MATLAB procedure to receive, display, and analyze EEG data. For smartphone applications, a Bluetooth wireless module is applied for data communication. We develop a simple demo application to display real-time EEG waveform on Android platform.
Wearable Electroencephalogram Signal Detection with Dry Metal Electrodes
(2017-01-01)
Hsu, Terng-Ren
;
Hsu, Terng-Yin
;
Huang, Wei-Hsin
;
Fan, Ching-Chih
;
資訊工程學系
The major of this paper is a wearable Electroencephalogram (EEG) signal detection with dry metal electrodes. It includes following characteristics: low cost, compact size, wearable object, and comfortable sensation. The proposed device employs the embedded microcontroller to be in charge of whole system. The EEG analog front-end circuit of our proposition is based on CMOS operational amplifiers (OPA) that are applied to construct an instrumentation amplifier (IA), high-pass filters (HPF), low-pass filters (LPF), a middle-amplifier, a post-amplifier and biases. A Bluetooth wireless communication module is applied for data communications. We develop a simple demo application software to display real-time EEG waveform or real-time EEG features on Android platforms.
Wearable Multi-lead ECG Recorder with Dry Metal Electrodes
(2016)
Hsu, Terng-Ren
;
Hsu, Terng-Yin
;
Yang, Shang-Yi
;
Huang, Wei-Hsin
;
Ou, Zong-Cheng
In this draft, our purpose is to construct a wearable multi-lead electrocardiogram (ECG) recorder with dry metal electrodes. In general, such as arrhythmia, myocardial ischemia or other heart-related symptoms, using one lead ECG measurements is difficult to accurately diagnose, three-lead ECG should be measured at least. In order to offer sufficient identification information, our scheme is a three-lead ECG solution with recording mode and real-time display mode. Besides, our proposition using dry metal electrodes provide a comfortable sensation, less skin-irritating, easy clean surfaces, reusable capability, and more durability. Due to these advantages, dry metal electrodes are suitable to integrate with underwear. The whole system includes an embedded microcontroller, a memory card interface, analog front-end circuits, user interface devices, power regulators, and so on. All elements integrate within a 5.8cm x 6.8cm four-layer printed circuit board (PCB) to meet the wearable request.