연구 진행 상황 보고서 Insulin Pump CPF & BEPatch X-Project 약물 주입 펌프 2주전 계획 연구 실험 phase 3 진행 논문 작성 실험 진행 In-vitro 실험 진행(8/17) 연구 결과 JKMS 논문 revision 후 제출 임상시험 데이터 분석 (순빈) 논문 작성 중 (Electronic letters) Multi ch. Headset type device 제작 문제점 및 대책 목표 및 계획 Error 발생 Hold
연구 진행 상황 보고서 AEP 2주전 계획 연구 결과 문제점 및 대책 목표 및 계획 2ch. EEG & 1ch. ECG version1 test 연구 결과 2ch. EEG & 1ch. ECG version1 제작 문제점 및 대책 목표 및 계획 Wellness 관련(Stress, Sleep, 집중력) 임상 protocol 조사
Headset type EEG&ECG ver.1 Version 1 Active : L/R. mastoid, Ground : R. behind the ear, Reference : Forehead 2ch. EEG : Active 1 – Reference & Active 2 – Reference 1ch. ECG : Active 1 – Active 2 ACT 1 + L. EEG Reference REF - ACT 2 + R. EEG Ground REF - Active 2 Active 1 ACT 1 + ECG ACT 2 -
Headset type EEG&ECG ver.1 Version 1 Battery con. Act.2 electrode REF electrode R.EEG & ECG AFE BLE Digital power Act.1 electrode GND electrode MCU Analog power L.EEG AFE Switch Micro USB for BAT charge ADC
Headset type EEG&ECG ver.1 Block diagram Li-polymer 1cell 105mAh Switch ON 3V linear regulator 1.8V linear regulator OFF Micro USB B type Battery charge controller Switching regulator (-3V) -1.8V linear regulator ACT1 ADC INA HPF LPF MCU Bluetooth 4.0 REF ACT2 Electrode INA HPF LPF REF SPI UART ACT1 INA HPF LPF ACT2 PWM ADC Skin-electrode Impedance measurement
Headset type EEG&ECG ver.1 PCB outline & 착용 예상도
Headset type EEG&ECG ver.1 Noise level Electrode short test Reference – X-project device version1.2 = 0.11μVrms Test # Ch.1 Ch.2 Ch.3 1 0.1127 0.1167 0.1083 2 0.1142 0.1128 0.1081 3 0.1102 0.1068 0.1101 Average 0.1123 0.1121 0.1088
Headset type EEG&ECG ver.1 신호측정 (Alpha wave & ECG) 20s (eye open) – 20s (eye closed) – 20s (eye open) – 20s (eye closed) 1) ECG, 2) Left EEG, 3) Right EEG 측정 Device : test version Electrode position : active.1 (left mastoid), active.2 (right mastoid), ground (right behind the ear), reference (forehead) Test location : 융합관 324호 내자리 Electrode impedance : w/ skin preparation Electrode : snap type
Headset type EEG&ECG ver.1 신호 ECG L.EEG R.EEG ECG L.EEG R.EEG
Headset type EEG&ECG ver.1 Alpha wave FFT 결과 L.EEG R.EEG