兩種恆溫器模式的嵌套api目標溫度

Question

在一次調用中是否可以獲取恆溫器模式（冷卻，加熱）的目標溫度？現在我有一種感覺，我可以獲得當前恆溫器模式的目標溫度，然後將恆溫器模式更改爲第二個，並獲得第二恆溫器模式的目標溫度。

也是同樣的問題改變目標臨時工。是否有可能在一個請求中更改目標溫度和散熱模式？

Answer 1

假設您的系統可以冷卻和加熱，恆溫器有3種模式：加熱，冷卻，加熱 - 冷卻。

如果您處於加熱模式或冷卻模式，您可以設置target_temperature。如果您處於散熱模式，則可以設置target_temperature_low_c & target_temperature_high_c。

您可以檢索在一個恆溫通話的目標溫度：

https://developer-api.nest.com/devices/thermostats/$THERMOSTAT_ID?auth=$AUTH 

您可以在一個呼叫建立熱氣溫涼爽，但您將需要在加熱 - 冷卻方式：

{"target_temperature_low_c": 19, "target_temperature_high_c": 21} 

您可以設置熱或涼爽溫度在一個呼叫，但你需要在熱或製冷模式：

{"target_temperature_c": 20} 

如果您尚未處於適當的模式，您需要進行2次呼叫才能設置模式並設置溫度。

Answer 2

即使對於單個API調用中的多個恆溫器，也可以獲得所有的恆溫器數據。我剛剛張貼用Python編寫的一個開源應用程序，做它到位桶在：

https://bitbucket.org/dwalton64_/window-watcher

該應用程序看起來從天氣地下，從airnow和數據從鳥巢的空氣質量數據氣象數據，以確定用戶是否應打開或關閉窗戶。我將API調用給Nest，在一次調用中獲取所有數據，然後解析結構中的數據。應用程序然後使用恆溫器hvac模式和目標溫度來查看用戶是否應打開窗戶。

下面是一些Python代碼，我拿出我的應用程序：

nestUserUrl = "https://developer-api.nest.com/?auth=" + auth_token 
nest_user_file = urllib2.urlopen(self.nestUserUrl) 
nest_user_json = json.loads(nest_user_file.read()) 

# copy thermostat data out of the json from Nest 
thermostat_data = [] 
for tstat_id in nest_user_json['devices']['thermostats']: 
    thermostat_data.append(nest_user_json['devices']['thermostats'][tstat_id]) 

# create thermostat objects containing the thermostat data we want to access 
thermostats = [] 
for tstat in thermostat_data: 
    thermostats.append(
      NestThermostat(tstat['ambient_temperature_f'], tstat['device_id'], 
         tstat['hvac_mode'], 
         tstat['is_online'], tstat['last_connection'], 
         tstat['name'], 
         tstat['software_version'], tstat['structure_id'], 
         tstat['target_temperature_f'], 
         tstat['target_temperature_high_f'],      
         tstat['target_temperature_low_f'])) 

class NestThermostat(): 
    def __init__(self, ambient_temperature_f, device_id, hvac_mode, is_online, 
       last_connection, name, software_version, structure_id, 
       target_temperature_f, target_temperature_high_f, target_temperature_low_f): 
     self.ambient_temperature_f = ambient_temperature_f 
     self.device_id = device_id 
     self.hvac_mode = hvac_mode 
     self.is_online = is_online 
     self.last_connection = last_connection 
     self.name = name 
     self.software_version = software_version 
     self.structure_id = structure_id 
     self.target_temperature_f = target_temperature_f 
     self.target_temperature_high_f = target_temperature_high_f 
     self.target_temperature_low_f = target_temperature_low_f 

    def print_current_temp_f(self): 
     print("Thermostat " + self.name + " measures a current temperature of " + str(
      self.ambient_temperature_f) + " degrees F") 

    def print_target_temp_f(self): 
     print("Thermostat " + self.name + " is set to " + str(self.target_temperature_f) + " degrees F") 

有一次我在恆溫對象的數據，我可以同時使用HVAC模式和目標溫度：

email = "" 
for thermostat in thermostats: 
    email += "For the thermostat " + thermostat.name + ":\n" 
    if thermostat.hvac_mode == 'cool': 
     if myWeather.temp_f < thermostat.target_temperature_f: 
      open_windows = True 
      email += " - It is cool outside (" + str(myWeather.temp_f) + " Deg F). \n" 
     else: 
      email += " - It is too hot outside to have the windows open. \n" 
     email += " - Thermostat is set at " + str(thermostat.target_temperature_f) + \ 
        " Deg F\n" 

    if thermostat.hvac_mode == 'heat-cool': 
     if thermostat.target_temperature_high_f > myWeather.temp_f > thermostat.target_temperature_low_f: 
      open_windows = True 
      email += " - Thermostat is set to heat-cool and it's comfortable out (" + \ 
           str(myWeather.temp_f) + " Deg F). \n" 
     elif myWeather.temp_f >= thermostat.target_temperature_high_f: 
      email += " - The thermostat is set to heat-cool and it is hot outside (" + \ 
         str(myWeather.temp_f) + " Deg F). \n" 
     else: 
      email += " - The thermostat is set to heat-cool & it is cold outside (" + \ 
         str(myWeather.temp_f) + " Deg F). \n" 
     email += " - The thermostat is set to cool at " + \ 
        str(thermostat.target_temperature_high_f) + " Deg F\n" 
     email += " - The thermostat is set to heat at " + \ 
        str(thermostat.target_temperature_low_f) + " Deg F\n" 

    if thermostat.hvac_mode == 'heat': 
     if myWeather.temp_f > thermostat.target_temperature_f: 
      open_windows = True 
      email += " - The thermostat is set to heat and it is warm outside (" + \ 
         str(myWeather.temp_f) + " Deg F). \n" 
     else: 
      email += " - The thermostat is set to heat and it is cool outside (" + \ 
         str(myWeather.temp_f) + " Deg F). \n" 
     email += " - Thermostat is set at " + str(thermostat.target_temperature_f) + \ 
        " Deg F\n" 

    email += "\n" 

請注意，熱量和冷卻模式的目標溫度是相同的值：target_temperature_f。