Question

我目前正在通过python中的串行端口使用接近传感器。

我得到的数据对应于一个距离。我的目标是获取每4个数据并计算平均值。我很难为此提出一个算法。我正在使用以下代码：

ser = serial.Serial(port = "COM5", baudrate = 230400,  bytesize = 
serial.EIGHTBITS, parity= serial.PARITY_NONE, timeout = 1)
try:
    ser.isOpen()
    print("serial Port is open")
except:
    print("error")
    exit()
if (ser.isOpen()):
    try:

    while True:
        line = ser.readline()

        for position, data in enumerate(line):

            if position == 4:
                print (data)

                    #while position == 4:

                    #seq.append(data)
                    #if len(seq) != 4:
                        #seq.append(data)
                        #print (seq)
                        #while len(seq) == 4:
                        #    print(seq)
                       # break
                   ### 
                    #if len(seq) != 4:
                     #   seq.append(data)
                      #  print(seq)
                       # while len(seq) == 4:
                        #   print(seq)
except Exception:
            print( "Keyboard Interrupt")
else:
        print("cannnot open port")

实际输出如图所示：

要提供一个具体示例，请从以下输出中获取

：

我想将其格式化为：

29.5

Answer 1

# ...
# init your List 
seq = []
# ...
while True:
    # append to your List
    seq.append(line[4]) # short for  for ... enumerate(line) + if position==4 ... data
    # check length of your List
    while len(seq)>4:
       # reduce length of your List
       del seq[0]
    # (A + B + C + D) / 4
    data = sum(seq) / len(seq)
    print(data) # print your fluent mean average
    # ...

在Loop中平均实时数据

1 个答案: