从matplotlib分析图

Question

我目前正在制作一个设备，它使用MyoWare肌肉传感器收集数据，将其发送到mysql数据库，并使用matplotlib显示图形。由于这个设备是为了运动目的（在我的情况下举重），我想能够确定用户的重复次数。有谁知道或可以告诉我如何实现它？

Here is my graphs with 4 reps

我的Python代码

conn = pymysql.connect(host="localhost", user="root", passwd="123456", db="XXX") 
 
cur = conn.cursor() 
 
query = """ 
 
SELECT CONVERT(data,SIGNED INTEGER),time FROM sensordata 
 
""" 
 
cur.execute(query) 
 
data = cur.fetchall() 
 
cur.close 
 

 
cur =conn.cursor() 
 
query1 = """ 
 
SELECT CONVERT(data1,SIGNED INTEGER),time1 FROM sensordata2 
 
""" 
 
cur.execute(query1) 
 
data1= cur.fetchall() 
 
cur.close 
 
conn.close() 
 

 
data,time= zip(*data) 
 
data1,time1= zip(*data1) 
 

 
data_moving_average = [] 
 
for initial_element_index in range(len(data)): 
 
    data_moving_average.append(sum(data[initial_element_index:initial_element_index+20])/5.) 
 
data_moving_average1 = [] 
 
for initial_element_index in range(len(data1)): 
 
    data_moving_average1.append(sum(data1[initial_element_index:initial_element_index+20])/5.) 
 

 
plt.plot(time,data_moving_average) 
 
plt.plot(time1,data_moving_average1)

什么是我的数据库里面做的是计算，峰数

+-----+------+---------------------+----------------------------+ 
 
| id | data | time    | analyzetime    | 
 
+-----+------+---------------------+----------------------------+ 
 
| 1 | 1 | 2017-06-22 08:23:09 | 2017-06-22 08:23:09.846534 | 
 
| 2 | 0 | 2017-06-22 08:23:10 | 2017-06-22 08:23:10.048035 | 
 
| 3 | 0 | 2017-06-22 08:23:10 | 2017-06-22 08:23:10.333497 | 
 
| 4 | 0 | 2017-06-22 08:23:10 | 2017-06-22 08:23:10.656422 | 
 
| 5 | 0 | 2017-06-22 08:23:10 | 2017-06-22 08:23:10.865791 | 
 
| 6 | 0 | 2017-06-22 08:23:10 | 2017-06-22 08:23:10.954816 | 
 
| 7 | 0 | 2017-06-22 08:23:11 | 2017-06-22 08:23:11.147128 | 
 
| 8 | 0 | 2017-06-22 08:23:11 | 2017-06-22 08:23:11.402207 | 
 
| 9 | 0 | 2017-06-22 08:23:11 | 2017-06-22 08:23:11.613567 | 
 
| 10 | 0 | 2017-06-22 08:23:11 | 2017-06-22 08:23:11.867029 |

Answer 1

的一种方式。

您可以使用SciPy的，

from scipy import signal 

peakind = signal.find_peaks_cwt(data_moving_average, np.arange(1,100)) 
nbOfRepetitions = peakind.size 
print nbOfRepetitions 

UPDATE：

我找到了更好的功能，您的任务还使用SciPy的

from scipy.signal import argrelextrema 

peakind = argrelextrema(x, np.greater) 
nbOfRepetitions = peakind.size 
print nbOfRepetitions