48 lines
1.3 KiB
Python
48 lines
1.3 KiB
Python
#!./env/bin/python
|
||
from datetime import datetime, timedelta
|
||
import matplotlib.pyplot as plt
|
||
from pylab import mpl
|
||
|
||
# 设置显示中文字体
|
||
mpl.rcParams["font.sans-serif"] = ["SimHei"]
|
||
|
||
# 初始化一个起始日期（这里假设是今天凌晨0点）
|
||
start_date = datetime.now().replace(hour=20, minute=21, second=0, microsecond=0)
|
||
|
||
with open('minicom.cap', 'r') as file:
|
||
lines = file.readlines()
|
||
|
||
times = []
|
||
temperatures = []
|
||
|
||
for line in lines:
|
||
time_str, temp_str = line.strip().split('temp = ')
|
||
time = start_date + timedelta(seconds=int(time_str.split(':')[2])) + \
|
||
timedelta(minutes=int(time_str.split(':')[1])) + \
|
||
timedelta(hours=int(time_str.split(':')[0]))
|
||
temperature = float(temp_str)
|
||
if len(temperatures) > 0:
|
||
pre_temp = temperatures[-1]
|
||
else:
|
||
pre_temp = temperature
|
||
if pre_temp-0.5 < temperature < pre_temp+0.5:
|
||
times.append(time)
|
||
temperatures.append(temperature)
|
||
|
||
# 确保时间序列是排序的
|
||
times.sort()
|
||
|
||
# 绘制折线图
|
||
plt.plot(times, temperatures)
|
||
plt.xlabel('时间')
|
||
plt.ylabel('温度 (摄氏度)')
|
||
plt.title('温度随时间变化图')
|
||
plt.xticks(rotation=45) # 旋转x轴标签以更好地展示时间
|
||
|
||
# 自动调整x轴刻度以显示日期时间格式
|
||
plt.gcf().autofmt_xdate()
|
||
|
||
# 显示图形
|
||
plt.savefig("img.png")
|
||
plt.show()
|