在Python中合并两个while循环

import RPi.GPIO as GPIO import time GPIO.setmode(GPIO.BCM) GPIO.setup(23, GPIO.IN) #PIR GPIO.setup(24, GPIO.OUT) #BUzzer try: time.sleep(2) # to stabilize sensor while True: if GPIO.input(23): GPIO.output(24, True) time.sleep(0.5) #Buzzer turns on for 0.5 sec GPIO.output(24, False) print("Motion Detected...") time.sleep(5) #to avoid multiple detection time.sleep(0.1) #loop delay, should be less than detection delay except: GPIO.cleanup()

# Simple heart beat reader for Raspberry pi using ADS1x15 family of ADCs and a pulse sensor - http://pulsesensor.com/. # The code borrows heavily from Tony DiCola's examples of using ADS1x15 with # Raspberry pi and WorldFamousElectronics's code for PulseSensor_Amped_Arduino # Author: Udayan Kumar # License: Public Domain import time # Import the ADS1x15 module. import Adafruit_ADS1x15 if __name__ == '__main__': adc = Adafruit_ADS1x15.ADS1015() # initialization GAIN = 2/3 curState = 0 thresh = 525 # mid point in the waveform P = 512 T = 512 stateChanged = 0 sampleCounter = 0 lastBeatTime = 0 firstBeat = True secondBeat = False Pulse = False IBI = 600 rate = [0]*10 amp = 100 lastTime = int(time.time()*1000) # Main loop. use Ctrl-c to stop the code while True: # read from the ADC Signal = adc.read_adc(0, gain=GAIN) #TODO: Select the correct ADC channel. I have selected A0 here curTime = int(time.time()*1000) sampleCounter += curTime - lastTime; # # keep track of the time in mS with this variable lastTime = curTime N = sampleCounter - lastBeatTime; # # monitor the time since the last beat to avoid noise #print N, Signal, curTime, sampleCounter, lastBeatTime ## find the peak and trough of the pulse wave if Signal < thresh and N > (IBI/5.0)*3.0 : # # avoid dichrotic noise by waiting 3/5 of last IBI if Signal < T : # T is the trough T = Signal; # keep track of lowest point in pulse wave if Signal > thresh and Signal > P: # thresh condition helps avoid noise P = Signal; # P is the peak # keep track of highest point in pulse wave # NOW IT'S TIME TO LOOK FOR THE HEART BEAT # signal surges up in value every time there is a pulse if N > 250 : # avoid high frequency noise if (Signal > thresh) and (Pulse == False) and (N > (IBI/5.0)*3.0) : Pulse = True; # set the Pulse flag when we think there is a pulse IBI = sampleCounter - lastBeatTime; # measure time between beats in mS lastBeatTime = sampleCounter; # keep track of time for next pulse if secondBeat : # if this is the second beat, if secondBeat == TRUE secondBeat = False; # clear secondBeat flag for i in range(0,10): # seed the running total to get a realisitic BPM at startup rate[i] = IBI; if firstBeat : # if it's the first time we found a beat, if firstBeat == TRUE firstBeat = False; # clear firstBeat flag secondBeat = True; # set the second beat flag continue # IBI value is unreliable so discard it # keep a running total of the last 10 IBI values runningTotal = 0; # clear the runningTotal variable for i in range(0,9): # shift data in the rate array rate[i] = rate[i+1]; # and drop the oldest IBI value runningTotal += rate[i]; # add up the 9 oldest IBI values rate[9] = IBI; # add the latest IBI to the rate array runningTotal += rate[9]; # add the latest IBI to runningTotal runningTotal /= 10; # average the last 10 IBI values BPM = 60000/runningTotal; # how many beats can fit into a minute? that's BPM! print 'BPM: {}'.format(BPM) if Signal < thresh and Pulse == True : # when the values are going down, the beat is over Pulse = False; # reset the Pulse flag so we can do it again amp = P - T; # get amplitude of the pulse wave thresh = amp/2 + T; # set thresh at 50% of the amplitude P = thresh; # reset these for next time T = thresh; if N > 2500 : # if 2.5 seconds go by without a beat thresh = 512; # set thresh default P = 512; # set P default T = 512; # set T default lastBeatTime = sampleCounter; # bring the lastBeatTime up to date firstBeat = True; # set these to avoid noise secondBeat = False; # when we get the heartbeat back print "no beats found" time.sleep(0.005)

import RPi.GPIO as GPIO import time import time # Import the ADS1x15 module. import Adafruit_ADS1x15 GPIO.setmode(GPIO.BCM) GPIO.setup(23, GPIO.IN) #PIR GPIO.setup(24, GPIO.OUT) #BUzzer def pir_function(): print("This is the motion sensor") try: time.sleep(2) # to stabilize sensor while True: if GPIO.input(23): GPIO.output(24, True) time.sleep(0.5) #Buzzer turns on for 0.5 sec GPIO.output(24, False) print("Motion Detected...") time.sleep(5) #to avoid multiple detection time.sleep(0.1) #loop delay, should be less than detection delay except: GPIO.cleanup() def heart_function(): adc = Adafruit_ADS1x15.ADS1015() # initialization GAIN = 2/3 curState = 0 thresh = 525 # mid point in the waveform P = 512 T = 512 stateChanged = 0 sampleCounter = 0 lastBeatTime = 0 firstBeat = True secondBeat = False Pulse = False IBI = 600 rate = [0]*10 amp = 100 lastTime = int(time.time()*1000) # Main loop. use Ctrl-c to stop the code while True: # read from the ADC Signal = adc.read_adc(0, gain=GAIN) #TODO: Select the correct ADC channel. I have selected A0 here curTime = int(time.time()*1000) sampleCounter += curTime - lastTime; # # keep track of the time in mS with this variable lastTime = curTime N = sampleCounter - lastBeatTime; # # monitor the time since the last beat to avoid noise #print N, Signal, curTime, sampleCounter, lastBeatTime ## find the peak and trough of the pulse wave if Signal < thresh and N > (IBI/5.0)*3.0 : # # avoid dichrotic noise by waiting 3/5 of last IBI if Signal < T : # T is the trough T = Signal; # keep track of lowest point in pulse wave if Signal > thresh and Signal > P: # thresh condition helps avoid noise P = Signal; # P is the peak # keep track of highest point in pulse wave # NOW IT'S TIME TO LOOK FOR THE HEART BEAT # signal surges up in value every time there is a pulse if N > 250 : # avoid high frequency noise if (Signal > thresh) and (Pulse == False) and (N > (IBI/5.0)*3.0) : Pulse = True; # set the Pulse flag when we think there is a pulse IBI = sampleCounter - lastBeatTime; # measure time between beats in mS lastBeatTime = sampleCounter; # keep track of time for next pulse if secondBeat : # if this is the second beat, if secondBeat == TRUE secondBeat = False; # clear secondBeat flag for i in range(0,10): # seed the running total to get a realisitic BPM at startup rate[i] = IBI; if firstBeat : # if it's the first time we found a beat, if firstBeat == TRUE firstBeat = False; # clear firstBeat flag secondBeat = True; # set the second beat flag continue # IBI value is unreliable so discard it # keep a running total of the last 10 IBI values runningTotal = 0; # clear the runningTotal variable for i in range(0,9): # shift data in the rate array rate[i] = rate[i+1]; # and drop the oldest IBI value runningTotal += rate[i]; # add up the 9 oldest IBI values rate[9] = IBI; # add the latest IBI to the rate array runningTotal += rate[9]; # add the latest IBI to runningTotal runningTotal /= 10; # average the last 10 IBI values BPM = 60000/runningTotal; # how many beats can fit into a minute? that's BPM! print 'BPM: {}'.format(BPM) if Signal < thresh and Pulse == True : # when the values are going down, the beat is over Pulse = False; # reset the Pulse flag so we can do it again amp = P - T; # get amplitude of the pulse wave thresh = amp/2 + T; # set thresh at 50% of the amplitude P = thresh; # reset these for next time T = thresh; if N > 2500 : # if 2.5 seconds go by without a beat thresh = 512; # set thresh default P = 512; # set P default T = 512; # set T default lastBeatTime = sampleCounter; # bring the lastBeatTime up to date firstBeat = True; # set these to avoid noise secondBeat = False; # when we get the heartbeat back print "no beats found" time.sleep(0.005) pir_function() heart_function()

1条回答

网友

1楼 · 发布于 2024-04-25 23:44:37

你没有提到你是如何运行你的程序。我猜

 python heartBeats.py

这将运行心跳.py仅限于。它不包括皮里，这样就永远不会执行代码。我假设您希望两个循环都运行，或多或少同时运行，或者交替运行。你知道吗

一个简单的方法是创建两个函数“heartBeat”和“motionDetect”，每个函数都执行循环的一次迭代心跳.py以及皮里然后回来。总的来说，在循环中调用它们：

while True:
  heartBeat()
  motionDetect()

更复杂的方法是创建两个线程，一个运行PIR代码，另一个运行heartBeats代码。你知道吗

相关问题更多 >

编程相关推荐

热门问题

热门文章