ラズパイ使って赤ちゃん快適室温設定システム構築してみた

$ git clone https://github.com/szazo/DHT11_Python.git

import RPi.GPIO as GPIO
import dht11
import time
import datetime
import subprocess

# initialize GPIO
GPIO.setwarnings(True)
GPIO.setmode(GPIO.BCM)

# read data using pin 14
instance = dht11.DHT11(pin=14)

def jtalk(phrase):
     open_jtalk=['open_jtalk']
     mech=['-x','/var/lib/mecab/dic/open-jtalk/naist-jdic']
     htsvoice=['-m','/usr/share/hts-voice/nitech-jp-atr503-m001/nitech_jp_atr503_m001.htsvoice']
     speed=['-r','1.0']
     outwav=['-ow','open_jtalk.wav']
     cmd=open_jtalk+mech+htsvoice+speed+outwav
     devnull = open('/dev/null','w')
     c = subprocess.Popen(cmd,stdin=subprocess.PIPE,stdout=devnull,stderr=devnull)
     c.stdin.write(phrase.encode())
     c.stdin.close()
     c.wait()
     aplay = ['aplay','open_jtalk.wav']
     wr = subprocess.Popen(aplay,stdout=devnull,stderr=devnull)
     return

def csvsetting(temp,humidity, flg):
     dt_now = datetime.datetime.now()
     today = dt_now.date().strftime('%Y%m%d')
     filename = today + '_temp.csv'
     with open( filename, 'a') as f:
     currenttime = dt_now.time().strftime('%H:%M:%S')
     f.write(currenttime + "," + str(temp) + "," + str(humidity) + "," + str(flg) + "\n")

try:
     interval = 30 # 温度湿度計測周期[秒]
     temp = 0 # 温度変数初期化
     humi = 0 # 湿度変数初期化
     tempmin = 25 # 温度下限値（夏の下限を設定中）
     tempmax = 28 # 温度上限値（夏の上限を設定中）
     humimin = 50 #　湿度下限値
     humimax = 60 # 湿度上限値
     flg = 0 # 温度湿度基準超過発生フラグ
     cnt = 0 # 温度湿度基準超過回数変数初期化
     cntmax = 20 # 動作禁止周期回数
     phrdetect = '温度もしくは湿度が赤ちゃん不快領域に到達。'
     phrTemp1 = 'アレクサ。ダイキンを使ってエアコンの設定温度を27度にして。'
     Temp1flg = 0
     phrTemp2 = 'アレクサ。ダイキンを使ってエアコンの設定温度を26度にして。'
     Temp2flg = 0
     phrHumi1 = 'アレクサ。ダイキンを使ってエアコンの設定湿度を高めにして。'
     Humi1flg = 0
     phrHumi2 = 'アレクサ。ダイキンを使ってエアコンの設定湿度を低めにして。'
     Humi2flg = 0

     while True:
          sttime = time.time()
          result = instance.read()
          dt_now = datetime.datetime.now()
          print(dt_now.time().strftime('%H:%M:%S'))
          lossflg = 0
          if result.is_valid():
               temp = result.temperature
               humi = result.humidity
               CurrentCondition = "温度:" + str(temp) + "度, 湿度:" + str(humi) + "%"
               print(CurrentCondition)
               csvsetting(temp,humi,lossflg)
               if ((temp < tempmin or temp > tempmax) or ( humi < humimin or humi > humimax )):
               # 一度温度湿度基準超過を検出したら動作禁止周期回数の間はアラームのみとする
                    if (flg == 1):
                         endtime = time.time()
                         exetime = endtime - sttime
                         cnt = cnt + 1
                         if (cnt > cntmax) :
                              cnt = 0
                              flg = 0
                         if interval - exetime < 0 :
                              exetime = 0
                         time.sleep(interval - exetime)
                         continue
                    jtalk(CurrentCondition)
                    time.sleep(5)
                    jtalk(phrdetect)
                    time.sleep(5)

                    # 温度湿度詳細チェックとエアコン操作
                    # 温度が快適領域下限より小さい場合
                    if ((temp < tempmin) and (Temp1flg == 0)):
                         jtalk(phrTemp1)
                         time.sleep(5)
                         flg = 1
                         Temp1flg = 1
                         Temp2flg = 0
                    # 温度が快適領域上限より大きい場合
                    elif ((temp > tempmax) and (Temp2flg == 0)):
                         jtalk(phrTemp2)
                         time.sleep(5)
                         flg = 1
                         Temp1flg = 0
                         Temp2flg = 1
                    # 湿度が快適領域外の場合
                    if ((humi < humimin) and (Humi1flg == 0)):
                         jtalk(phrHumi1)
                         time.sleep(5)
                         Humi1flg = 1
                         Humi2flg = 0
                         flg = 1
                    elif ((humi > humimax) and (Humi2flg == 0)):
                         jtalk(phrHumi2)
                         time.sleep(5)
                         Humi1flg = 0
                         Humi2flg = 1
                         flg = 1
               else:
                    print('good condition!!')
                    flg = 0
          else:
               lossflg = 1 #欠損前値保持
               print("温度:", temp, "度, 湿度:",humi, "%")
               csvsetting(temp,humi,lossflg)
          endtime = time.time()
          exetime = endtime - sttime
          if interval - exetime < 0 :
               exetime = 0
          time.sleep(interval - exetime)

except KeyboardInterrupt:
     GPIO.cleanup()