Zerohertz

 Zerohertz

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Initialize

0으로 초기화

init_zero.py
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import numpy as np

a = np.zeros(5)
b = np.zeros((5,4))

print('a = ', a)
print('********************')
print('b = ', b)
print('********************')

print('b.shape = ', b.shape)
print('********************')
print('b.ndim', b.ndim) #len(b.shape)
print('********************')
print('b.size = ', b.size)
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MATLAB Coder

MATLAB Coder를 통해 C 또는 C++ 코드를 생성할 수 있다.

  • Export types
    • 소스 코드
    • 정적 라이브러리
    • 동적 라이브러리
  • Prerequisites for Deep Learning
    • Intel CPUs
      • Intel Math Kernel Library for Deep Neural Networks (Intel MKL-DNN)
    • ARM CPUs
      • ARM Compute Library

matlab-coder

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Source in Github

HRV(Heart Rate Variability)

Detecting R-R Interval

rrInterval.mat
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function [qrspeaks, locs, y] = rrInterval(time, ecg)
t = time;
wt = modwt(ecg, 5);
wtrec = zeros(size(wt));
wtrec(4:5, :) = wt(4:5, :);
y = imodwt(wtrec, 'sym4');
y = abs(y).^2;
[qrspeaks, locs] = findpeaks(y, t, 'MinPeakHeight', 0.1, 'MinPeakDistance', 0.450); %time과 y에 대한 그래프를 해석 후 파라미터 결정
end

ECG

ecg 
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>> load mit200
>> plot(tm, ecgsig)
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Raspberry Pi 초기 설정

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pi@raspberrypi:~ $ sudo apt-get update
pi@raspberrypi:~ $ sudo apt-get install python3-pip -y
pi@raspberrypi:~ $ sudo apt-get update -y
pi@raspberrypi:~ $ sudo apt-get install python3-venv
pi@raspberrypi:~ $ python3 -m venv zerohertz
pi@raspberrypi:~ $ source ~/zerohertz/bin/activate
(zerohertz) pi@raspberrypi:~ $ pip install --upgrade pip
(zerohertz) pi@raspberrypi:~ $ pip install jupyter notebook
(zerohertz) pi@raspberrypi:~ $ pip install ipykernel
(zerohertz) pi@raspberrypi:~ $ python -m ipykernel install --user --name=zerohertz
(zerohertz) pi@raspberrypi:~ $ jupyter notebook --generate-config
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