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temp.py
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temp.py
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import matplotlib.pyplot as plt
import numpy as np
import time
import time, random
import math
import serial
from collections import deque
from scipy import signal
#Display loading
class PlotData:
def __init__(self, max_entries=30):
self.axis_x = deque(maxlen=max_entries)
self.axis_y = deque(maxlen=max_entries)
self.axis_yac = deque(maxlen=max_entries)
self.axis_yfilter = deque(maxlen=max_entries)
self.axis_yfrequency = deque(maxlen=max_entries)
self.axis_t = deque(maxlen=max_entries)
self.x=np.linspace(0, 100, 500)
self.t=0
self.c =0
self.t1=0
self.t2=0
self.t3=0
self.heart=0
self.heart1=[]
self.y=0
self.sec=0
self.fir =0
self.fir1=0
def add(self, x, y):
self.axis_x.append(x)
self.axis_y.append(y)
self.axis_yac.append(y-np.mean(self.axis_y))
self.axis_yfilter = signal.lfilter([1/7, 1/7, 1/7,1/7, 1/7, 1/7,1/7], 1, self.axis_yac)
self.axis_yfrequency.append(np.fft.fft(self.axis_yac))
def fre(self,y):
'''
print(y)
print("=: "+str(y-self.fir))
if((y-self.fir)>3):
self.fir =y
self.t = time.time()
#print('t: '+ str(self.t))
if((time.time()-self.t)>=0.2 ):
if(y-self.fir1>3):
self.fir1 =y
self.t1 = time.time()
print('t: '+ str(self.t1))
if(time.time()-self.t1>0.8 and self.t1>self.t):
if(self.t1-self.t<1 and self.t1-self.t>0.4):
print('heartbeat: '+str(1/(self.t1-self.t)*60))
self.fir=0
self.fir1=0
'''
if(self.fir<y and self.c==0):
self.fir =y
self.t = time.time()
# print('t: '+ str(self.t))
if((time.time()-self.t)>=0.2 and self.c==0):
self.c=1
self.fir =0
# print('t1: '+ str(self.t))
if(self.fir<y and self.c==1):
self.fir =y
self.t1 = time.time()
# print('t2: '+ str(self.t1))
if(((time.time()-self.t1)>=0.45) and ((self.t1-self.t)<=0.9) and ((self.t1-self.t)>=0.45) and (self.c==1)):
self.heart = self.t1-self.t
#print('heartbeat_instant: '+str((1/self.heart*60)))
'''
if(len(self.heart1<5)):
self.heart1.append((1/self.heart*60))
if((len(self.heart1>5)) and abs(np.mean(self.heart1)-self.heart)<30):
self.heart1.append((1/self.heart*60))
'''
self.heart1.append((1/self.heart*60))
print('heartbeat_av: '+str(np.mean(self.heart1)))
self.c=0
self.fir=0
if(((self.t1-self.t)>1) and self.c==1 ):
self.c=0
self.t =0
self.fir=0
'''
self.heart1.append( self.t1-self.t)
print(str(len(self.heart1)))
if(len(self.heart1)>10):
for i in range(len(self.heart1)-10,len(self.heart1),1):
self.t2+=self.heart1[i]
print("heartbeat 10 :"+str(1/(self.t2/10)*60))
'''
'''
if(self.fir<=y and self.c==2):
self.fir =y
self.t2 = time.time()
#print('t: '+ str(self.t))
if((time.time()-self.t2)>=0.4 and self.c==2):
self.c=3
self.fir =0
# print('t1: '+ str(self.t))
if(self.fir<=y and self.c==3):
self.fir =y
self.t3 = time.time()
# print('t2: '+ str(self.t1))
if(((time.time()-self.t3)>=0.4) and ((self.t3-self.t2)<=1) and (self.c==3)):
self.c=0
self.fir=0
self.heart1 = self.t3-self.t2
print('heartbeat1: '+str((1/self.heart1*60)))
print("差: "+str((1/self.heart1*60)-(1/self.heart0*60)) )
if(abs((1/self.heart1*60)-(1/self.heart0*60))<=10):
print("heratbeat real : "+str(((1/self.heart1*60)+(1/self.heart0*60))/2))
if(((self.t3-self.t2)>=1) and self.c==3):
self.c=2
self.t2 =0
self.fir=0
'''
angle = np.linspace(-np.pi, np.pi, 50)
cirx = np.sin(angle)
ciry = np.cos(angle)
z = np.roots([1/7, 1/7, 1/7,1/7, 1/7, 1/7,1/7])
p = np.roots([1,0,0,0,0,0,0])
plt.figure(figsize=(8,8))
plt.plot(cirx, ciry,'k-')
plt.plot(np.real(z), np.imag(z), 'o', markersize=12)
plt.plot(np.real(p), np.imag(p),'x', markersize=12)
plt.grid()
plt.text(0.1,0.1,6)
plt.xlim((-2, 2))
plt.xlabel('Real')
plt.ylim((-2, 2))
plt.ylabel('Imag')
#initial 初始圖樣v
fig, (ax,ax2,ax3) = plt.subplots(3,1)
line, = ax.plot(np.random.randn(100))
line2, = ax2.plot(np.random.randn(100))
line3, = ax3.plot(np.random.randn(100))
fig1, (ax4) = plt.subplots(1,1)
line4, = ax4.plot(np.random.randn(100))
plt.show(block = False)
plt.setp(line2,color = 'r')
PData= PlotData(500)
ax.set_ylim(0,500)
ax2.set_ylim(-20,20)
ax3.set_ylim(-20,20)
ax4.set_ylim(0,200)
#PData.fre=[0.0, 500.0]
# plot parameters
print ('plotting data...')
# open serial port
strPort='com6'
ser = serial.Serial(strPort, 115200)
ser.flush()
start = time.time()
while True:
for ii in range(10):
try:
data = float(ser.readline())
PData.add(time.time() - start, data)
PData.fre (data)
except:
pass
ax.set_xlim(PData.axis_x[0], PData.axis_x[0]+5)
ax2.set_xlim(PData.axis_x[0], PData.axis_x[0]+5)
ax3.set_xlim(PData.axis_x[0], PData.axis_x[0]+5)
ax4.set_xlim(0, 100)
line.set_xdata(PData.axis_x)
line.set_ydata(PData.axis_y)
line2.set_xdata(PData.axis_x)
line2.set_ydata(PData.axis_yac)
line3.set_xdata(PData.axis_x)
line3.set_ydata(PData.axis_yfilter)
# line4.set_xdata(PData.x)
# line4.set_ydata(abs(np.fft.fft(PData.axis_yfilter)))
if(len(abs(np.fft.fft(PData.axis_y))) == 500):
line4.set_xdata(PData.x) #All Frequency of Heart Data
line4.set_ydata(abs(np.fft.fft(PData.axis_yfilter)))
# print(abs(np.fft.fft(PData.axis_yfilter)))
# print('heartbeat: '+ PData.list[2]*60)
# PData.fre(data)
fig.canvas.draw()
fig.canvas.flush_events()
fig1.canvas.draw()
fig1.canvas.flush_events()