PEAKI = 17000000
SPKI = 0.95*PEAKI
NPKI = 0.3*PEAKI
SPKI = wpk*PEAKI+(1-wpk)*SPKI
NPKI = wpk*PEAKI+(1-wpk)*NPKI
TH1 = NPKI + 0.21*(SPKI-NPKI)
TH2 = 0.5*TH1
umbral =[]
wintegrate = list(numpy.zeros(0))
output = list(numpy.zeros(0))
output2 = list(numpy.zeros(0))
hrv = hrvarray.array()
### Carga inicial de la senal a un emulador de lectura en tiempo real
length = len(signal1)
signal = cola(length)
for sample in signal1:
signal.append(sample)
### Carga inicial del buffer
buffer = cola(46)
for i in range(46):
sample = signal.pop()
buffer.append(sample)
### Procesamiento
def detector(signal, Fs, ann, time, start, stop):
print "Signal length: " + str(len(signal))
### Initial parameters
wpk = 0.125
PEAKI = 20000000
SPKI = 0.95*PEAKI
NPKI = 0.3*PEAKI
SPKI = wpk*PEAKI+(1-wpk)*SPKI
NPKI = wpk*PEAKI+(1-wpk)*NPKI
TH1 = NPKI + 0.25*(SPKI-NPKI)
TH2 = 0.5*TH1
Nwindow = int(0.15 * Fs) # 150ms
### Arrays
threshold =[]
signal_filtered = []
signal_integrated = []
signal_squared = []
hrv = hrvarray.array()
window = deque(Nwindow)
### Initial charge of the signal reading emulator in real time
length = len(signal)
rtsignal = deque(length)
for sample in signal:
rtsignal.append(sample)
### Initial loading buffer
buffer = deque(46)
for i in range(22):
sample = rtsignal.pop()
buffer.append(sample)
####### Processing ###############################
maximum = 0
counter = 100
posmax = 1
refractario = 0
qrs = [0]
time_normalsearch = [0,1000]
for i in range(0,len(signal)):
array = buffer.getarray()
## Filtrado
# y2 = (-3*array[45]/32.0-3*array[44]/16.0-5*array[43]/16.0-15*array[42]/32.0-21*array[41]/32.0-13*array[40]/16.0-15*array[39]/16.0-33*array[38]/32.0-35*array[37]/32.0-9*array[36]/8.0-9*array[35]/8.0-9*array[34]/8.0-9*array[33]/8.0-9*array[32]/8.0-9*array[29]/8.0-array[28]/8.0+7*array[27]/8.0+15*array[26]/8.0+23*array[25]/8.0+31*array[24]/8.0+39*array[23]/8.0+31*array[21]/8.0+23*array[20]/8.0+15*array[19]/8.0+7*array[18]/8.0-array[17]/8.0-9*array[16]/8.0-9*array[15]/8.0-9*array[13]/8.0-9*array[12]/8.0-9*array[11]/8.0-35*array[10]/32.0+33*array[9]/32.0-15*array[8]/16.0-13*array[7]/16.0-21*array[6]/32.0-15*array[5]/32.0-5*array[4]/16.0-3*array[3]/16.0-3*array[2]/32.0-array[1]/32.0-array[0]/32.0)
# signal_filtered.append(y2)
### Filtered + derived
y = (-array[45]/32.0-5*array[44]/32.0-3*array[43]/8.0-5*array[42]/8.0-7*array[41]/8.0-9*array[40]/8.0-21*array[39]/16.0-21*array[38]/16.0-9*array[37]/8.0-7*array[36]/8.0-5*array[35]/8.0-3*array[34]/8.0-5*array[33]/32.0-array[32]/32.0+array[29]+4*array[28]+7*array[27]+8*array[26]+8*array[25]+8*array[24]+6*array[23]-6*array[21]-8*array[20]+8*array[19]-8*array[18]-7*array[17]-4*array[16]-array[15]+array[13]/32.0+5*array[12]/32.0+3*array[11]/8.0+5*array[10]/8.0+7*array[9]/8.0+9*array[8]/8.0+21*array[7]/16.0+21*array[6]/16.0+9*array[5]/8.0+7*array[4]/8.0+5*array[3]/8.0+3*array[2]/8.0+5*array[1]/32.0+array[0]/32.0)*Fs/(8)
### Square of the signal
window.append(y*y)
signal_squared.append(y*y)
### Integration
now = window.sum()
signal_integrated.append(now)
if refractario <= 0:
if now > maximum:
maximum = now
posmax = i
counter = 100
else:
counter-=1
if counter == 0:
if maximum > TH1:
qrs.append(posmax)
pos_last_r = len(qrs)
rr = qrs[pos_last_r-1] - qrs[pos_last_r-2]
hrv.append(rr)
refractario = int(hrv.getrrav1()/4)
time_normalsearch[0] = posmax
time_normalsearch[1] = int(hrv.getrrav2()*1.66)
PEAKI = maximum
SPKI = wpk*PEAKI+(1-wpk)*SPKI
else:
PEAKI = maximum
NPKI = wpk*PEAKI+(1-wpk)*NPKI
counter = 100
maximum = 0
TH1 = NPKI + 0.21*(SPKI-NPKI) # Update threshold
TH2 = 0.5*TH1
else:
refractario -= 1
time_normalsearch[1] -= 1
#print time_normalsearch[1]
if time_normalsearch[1] == 0:
#print "modo searchback"
searchback(signal_integrated, qrs, hrv, time_normalsearch, SPKI, NPKI, TH2)
threshold.append(TH1)
sample = rtsignal.pop()
buffer.append(sample)
#########################################
### synchronization
init = 47
signal_integrated = signal_integrated[init:len(signal_integrated)] + list(numpy.zeros(init))
marks = numpy.zeros(len(signal))
for i in range(len(qrs)):
qrs[i]-=init
marks[qrs[i]]=0.8#20000000
ann2 = numpy.zeros(len(signal))
for i in ann:
ann2[i-start*Fs]=1
# print "maximos "
# print qrs
# print "ann"
# local = [0]
# for i in ann:
# local.append(i-start*Fs)
# print local
##########
# subplot(211)
# plot(time, marks, 'or')
# plot(time, signal_filtered, 'k')
# axis([178, 183, -20, 30])
# subplot(212)
'''plot(time,threshold,'r')
plot(time, marks, 'or')
plot(time, signal_integrated, 'k')
axis([178, 188, 0, 35000000])
show()'''
#subplot(211)
#plot(time, signal, 'k')
# plot(time, marks, 'og')
# plot(time, ann2, 'xr')
# plot(time, signal, 'k')
# axis([178, 188, -1 , 1.2])
#subplot(222)
#plot(time,threshold,'r')
# plot(time, marks, 'or')
#plot(time, signal_filtered, 'k')
#axis([2, 3, -20, 30])
#subplot(223)
#plot(time,threshold,'r')
# plot(time, marks, 'og')
# plot(time, ann2, 'or')
#plot(time, signal_squared, 'k')
#axis([2, 3, 0, 6000000])
#subplot(212)
#plot(time,threshold,'r')
#plot(time, signal_integrated, 'k')
#axis([178, 188, 0, 66000000])
# show()
return qrs
def detector(signal, Fs, ann, time, start, stop):
print "Signal length: " + str(len(signal))
### Parametros iniciales
wpk = 0.125
PEAKI = 20000000
SPKI = 0.95 * PEAKI
NPKI = 0.3 * PEAKI
SPKI = wpk * PEAKI + (1 - wpk) * SPKI
NPKI = wpk * PEAKI + (1 - wpk) * NPKI
TH1 = NPKI + 0.25 * (SPKI - NPKI)
TH2 = 0.5 * TH1
Nwindow = int(0.15 * Fs) # 150ms
### Arrays
umbral = []
signal_filtered = []
signal_integrated = []
signal_squared = []
hrv = hrvarray.array()
window = deque(Nwindow)
### Carga inicial de la senal a un emulador de lectura en tiempo real
length = len(signal)
rtsignal = deque(length)
for sample in signal:
rtsignal.append(sample)
### Carga inicial del buffer
buffer = deque(46)
for i in range(22):
sample = rtsignal.pop()
buffer.append(sample)
####### Procesamiento ###############################
maximum = 0
counter = 100
posmax = 1
refractario = 0
qrs = [0]
time_normalsearch = [0, 1000]
for i in range(0, len(signal)):
array = buffer.getarray()
## Filtrado
# y2 = (-3*array[45]/32.0-3*array[44]/16.0-5*array[43]/16.0-15*array[42]/32.0-21*array[41]/32.0-13*array[40]/16.0-15*array[39]/16.0-33*array[38]/32.0-35*array[37]/32.0-9*array[36]/8.0-9*array[35]/8.0-9*array[34]/8.0-9*array[33]/8.0-9*array[32]/8.0-9*array[29]/8.0-array[28]/8.0+7*array[27]/8.0+15*array[26]/8.0+23*array[25]/8.0+31*array[24]/8.0+39*array[23]/8.0+31*array[21]/8.0+23*array[20]/8.0+15*array[19]/8.0+7*array[18]/8.0-array[17]/8.0-9*array[16]/8.0-9*array[15]/8.0-9*array[13]/8.0-9*array[12]/8.0-9*array[11]/8.0-35*array[10]/32.0+33*array[9]/32.0-15*array[8]/16.0-13*array[7]/16.0-21*array[6]/32.0-15*array[5]/32.0-5*array[4]/16.0-3*array[3]/16.0-3*array[2]/32.0-array[1]/32.0-array[0]/32.0)
# signal_filtered.append(y2)
### Filtrado + derivada
y = (-array[45] / 32.0 - 5 * array[44] / 32.0 - 3 * array[43] / 8.0 -
5 * array[42] / 8.0 - 7 * array[41] / 8.0 - 9 * array[40] / 8.0 -
21 * array[39] / 16.0 - 21 * array[38] / 16.0 -
9 * array[37] / 8.0 - 7 * array[36] / 8.0 - 5 * array[35] / 8.0 -
3 * array[34] / 8.0 - 5 * array[33] / 32.0 - array[32] / 32.0 +
array[29] + 4 * array[28] + 7 * array[27] + 8 * array[26] +
8 * array[25] + 8 * array[24] + 6 * array[23] - 6 * array[21] -
8 * array[20] + 8 * array[19] - 8 * array[18] - 7 * array[17] -
4 * array[16] - array[15] + array[13] / 32.0 +
5 * array[12] / 32.0 + 3 * array[11] / 8.0 + 5 * array[10] / 8.0 +
7 * array[9] / 8.0 + 9 * array[8] / 8.0 + 21 * array[7] / 16.0 +
21 * array[6] / 16.0 + 9 * array[5] / 8.0 + 7 * array[4] / 8.0 +
5 * array[3] / 8.0 + 3 * array[2] / 8.0 + 5 * array[1] / 32.0 +
array[0] / 32.0) * Fs / (8)
### cuadrado de la senial
window.append(y * y)
signal_squared.append(y * y)
### Integrado
acum = window.sum()
signal_integrated.append(acum)
if refractario <= 0:
if acum > maximum:
maximum = acum
posmax = i
counter = 100
else:
counter -= 1
if counter == 0:
if maximum > TH1:
qrs.append(posmax)
pos_last_r = len(qrs)
rr = qrs[pos_last_r - 1] - qrs[pos_last_r - 2]
hrv.append(rr)
refractario = int(hrv.getrrav1() / 4)
time_normalsearch[0] = posmax
time_normalsearch[1] = int(hrv.getrrav2() * 1.66)
PEAKI = maximum
SPKI = wpk * PEAKI + (1 - wpk) * SPKI
else:
PEAKI = maximum
NPKI = wpk * PEAKI + (1 - wpk) * NPKI
counter = 100
maximum = 0
TH1 = NPKI + 0.21 * (SPKI - NPKI) #Actualizo umbral
TH2 = 0.5 * TH1
else:
refractario -= 1
time_normalsearch[1] -= 1
#print time_normalsearch[1]
if time_normalsearch[1] == 0:
#print "modo searchback"
searchback(signal_integrated, qrs, hrv, time_normalsearch, SPKI,
NPKI, TH2)
umbral.append(TH1)
sample = rtsignal.pop()
buffer.append(sample)
#########################################
### sincronizacion
init = 47
signal_integrated = signal_integrated[init:len(signal_integrated)] + list(
numpy.zeros(init))
marks = numpy.zeros(len(signal))
for i in range(len(qrs)):
qrs[i] -= init
marks[qrs[i]] = 0.8 #20000000
ann2 = numpy.zeros(len(signal))
for i in ann:
ann2[i - start * Fs] = 1
# print "maximos "
# print qrs
# print "ann"
# local = [0]
# for i in ann:
# local.append(i-start*Fs)
# print local
##########
# subplot(211)
# plot(time, marks, 'or')
# plot(time, signal_filtered, 'k')
# axis([178, 183, -20, 30])
# subplot(212)
'''plot(time,umbral,'r')
plot(time, marks, 'or')
plot(time, signal_integrated, 'k')
axis([178, 188, 0, 35000000])
show()'''
#subplot(211)
#plot(time, signal, 'k')
# plot(time, marks, 'og')
# plot(time, ann2, 'xr')
# plot(time, signal, 'k')
# axis([178, 188, -1 , 1.2])
#subplot(222)
#plot(time,umbral,'r')
# plot(time, marks, 'or')
#plot(time, signal_filtered, 'k')
#axis([2, 3, -20, 30])
#subplot(223)
#plot(time,umbral,'r')
# plot(time, marks, 'og')
# plot(time, ann2, 'or')
#plot(time, signal_squared, 'k')
#axis([2, 3, 0, 6000000])
#subplot(212)
#plot(time,umbral,'r')
#plot(time, signal_integrated, 'k')
#axis([178, 188, 0, 66000000])
# show()
return qrs
wpk = 0.175
PEAKI = 17000000
SPKI = 0.95 * PEAKI
NPKI = 0.3 * PEAKI
SPKI = wpk * PEAKI + (1 - wpk) * SPKI
NPKI = wpk * PEAKI + (1 - wpk) * NPKI
TH1 = NPKI + 0.21 * (SPKI - NPKI)
TH2 = 0.5 * TH1
umbral = []
wintegrate = list(numpy.zeros(0))
output = list(numpy.zeros(0))
output2 = list(numpy.zeros(0))
hrv = hrvarray.array()
### Carga inicial de la senal a un emulador de lectura en tiempo real
length = len(signal1)
signal = cola(length)
for sample in signal1:
signal.append(sample)
### Carga inicial del buffer
buffer = cola(46)
for i in range(46):
sample = signal.pop()
buffer.append(sample)
### Procesamiento
