我正在尝试使用 Python 3.6 和 PyVisa 库(版本 1.11.1)从 SR245 Boxcar 自动收集数据。9/10 次,效果很好。但是,在两天的时间里,它曾三次导致整个计算机崩溃并重新启动(在 Windows 10 上运行)。这导致了大量数据丢失,我试图找出导致整个系统崩溃的错误。代码在下面(它是一个更大程序的一部分,但我自己也运行了这段代码,它导致了崩溃)。未显示 data_processing 文件,但其中的函数进行了简单的计算(例如,将列表中的值除以另一个列表中的值,从整数列表中返回平均值等)
import pyvisa
from pyvisa.constants import SerialTermination
import time
import numpy as np
from data_processing import *
def connect_boxcar(pNum):
rm = pyvisa.ResourceManager()
port = "COM"+pNum
sr = rm.open_resource(port)
return sr
def config_boxcar(boxcar):
#Configure the boxcar settings
boxcar.write_termination = '\r'
boxcar.read_termination='\r'
boxcar.baud_rate=19200
boxcar.end_output = SerialTermination.termination_char
def preset_scan(boxcar):
#Reset boxcar settings
boxcar.write('MR')
boxcar.write('MS;ET;T1;I2;W0')
def scan(boxcar, num):
#Send the SCAN command to the boxcar, set to the specified number of data points
command = 'SC1,2:' + str(num)
boxcar.write(command)
def read_data(boxcar, num):
#Read the stored scan data and return it as a value list
data_list = []
for x in range(num * 2):
data_list.append(float(boxcar.query('N')))
return data_list
def collect_baseline(boxcar, n):
#Get a baseline signal for later processing
config_boxcar(boxcar)
preset_scan(boxcar)
scan(boxcar, n)
raw_data = read_data(boxcar, n)
chan1 = raw_data[::2]
chan2 = raw_data[1::2]
normal_data = normalize(chan1, chan2, n)
return average_list(normal_data)
def main():
rm = pyvisa.ResourceManager()
n = 10
sleep_timer = 0.1 * n + 0.5
sr245 = rm.open_resource('COM5')
#Configure/preset
config_boxcar(sr245)
preset_scan(sr245)
#Set a timer to measure scanning time
t0 = time.time()
scan(sr245, n)
time.sleep(sleep_timer)
raw_data = read_data(sr245, n)
t1 = time.time()
#Breakdown data by channel and normalize
chan1 = raw_data[::2]
chan2 = raw_data[1::2]
normal_data = normalize(chan1, chan2, n)
elapsed_time = t1 - t0
print('Elapsed time: ', elapsed_time)
print('Channel 1: ', chan1)
print('Channel 2: ', chan2)
print('Normalized Data: ', normal_data)
print('Average Normalized Data: ', average_list(normal_data))
print('Standard Deviation: ', np.std(normal_data))
if __name__ == '__main__':
main()