Progress Seminar 2016.1.15 이준녕.

Presentation on theme: "Progress Seminar 2016.1.15 이준녕."— Presentation transcript:

1 Progress Seminar 이준녕

2 연구 진행 상황 보고서 재활의학과 응급의학과 Bepatch/CPF 2주전 계획 연구 결과 문제점 및 대책 목표 및 계획
ABT 논문 진행 PCB Ver2 납땜 통합 알고리즘 개발 펌웨어 확인 연구 결과 ABT 논문 통계 연구 Introduction 100% Methods 100% Results 90% Discussion 90% PCB Ver 2.1 제작 회로 디버깅 VO2max modelling 공부 문제점 및 대책 목표 및 계획 Ver1 제작 및 신호 확인

3 2 main parts: 통합 알고리즘 재난 대응 통합 장비 2세부 Chemical + Radiation sensor
Biological sensor strip + reader 통합 알고리즘 Chemical sensor mV->PPM->AEGL Radiation sensor CPM->uSv/hr Radiation sensor Arduino – Chemical sensor Arduino LCD display

4 (mV -> PPM -> AEGL)
재난 대응 통합 장비 2세부 Arudino (CPM -> uSv/hr) + I2C slave (mV -> PPM -> AEGL) + I2C master Radiation sensor C1 C8 PCB C7 C6 C2 C3 C4 C5

5 PCB Vin~27V Arduino ~12V Chem Sensors ~24V Rad ~5V

6 Chemical sensor layout
4mA < i < 20mA i Sensor 240 Ohms 0.96V < V < 4.8V ADC (0-5V 10bit) 197 < value < 983 PPM = (range of sensor in PPM / 786)*(value-197)

7 B0+B1*f1 (x1)+B2*f2 (x2)+…+Bn*fn (xn) = y
CPF VO2max 추정 알고리즘 B0+B1*f1 (x1)+B2*f2 (x2)+…+Bn*fn (xn) = y Devices: Our device: HR, HRV, raw acceleration (chest) FitBit: HR, HRV, steps (wrist), intensity (wrist), calories Actiheart: HR, HRV, intensity (chest), calories (varies by model) Subject variables: age, weight, height, waist circumference, gender, smoking Has been done before… except for calories

8 B0+B1*f1 (x1)+B2*f2 (x2)+…+Bn*fn (xn) = y
CPF: new ideas for algorithm VO2max 추정 알고리즘 B0+B1*f1 (x1)+B2*f2 (x2)+…+Bn*fn (xn) = y Concepts: Subject variability in basal metabolic rate (BMR): high BMR = greater VO2max ? How to characterize “intensity” of movement? Both Actiheart and FitBit estimates intensity Low movement: how does it affect VO2max?

9 CPF: new ideas for algorithm
BMR can be predicted from weight, height, and age many previous studies on BMR estimation Mifflin-St Jeor (1990): 82% within 10% error range, maximal underestimation by 18% overestimation by 15% Estimation algorithm seems to be sensitive to population Intensity Use Actiheart branched tree algorithm: balance between HR & acceleration Low movement Previous study has shown that increased bed rest led to decreased VO2max (Convertino VA, 1997)