def _read_opc(self):
desired_states = []
opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
opc_tags = [
self.config['OPC_STORAGE']['tag_control'],
]
values = opcclient.read(opc_tags)
value = values[0]
for i in range(len(self.config['WINDOWS'])):
# process current state
ctrl_id = self.config['WINDOWS'][i]['opc']['ctrl']
# opc reading may be disabled for this window
if ctrl_id is not None:
try:
state = int(value[2*ctrl_id:2*ctrl_id+2])
except KeyError:
logging.getLogger().error("Error getting state for window {}, {}"\
.format(ctrl_id, self.config['WINDOWS'][i]['name']))
state = 0
else:
state = None
desired_states.append(state)
return desired_states
def __init__(self):
# call parent constructor
super().__init__()
# setup OPC interface
if not self.config['OPC_STORAGE']['enabled']:
raise Exception("Astrotime needs OPC storage enabled")
self.opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
class Astrotime(StandardScript):
HORIZON = '-7' # -6=civil twilight
def __init__(self):
# call parent constructor
super().__init__()
# setup OPC interface
if not self.config['OPC_STORAGE']['enabled']:
raise Exception("Astrotime needs OPC storage enabled")
self.opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
def process(self):
try:
# determine sunset
# get sun position
o = ephem.Observer()
# Vienna: 48 degree north; 16 degree east
o.lat, o.long, o.date = '48:13', '16:22', datetime.datetime.utcnow()
o.horizon = self.HORIZON
sunset = ephem.localtime(o.next_setting(ephem.Sun()))
logging.getLogger().info("Setting sunset to {}".format(sunset.strftime("%H:%M:%S")))
# store to OPC data point
self.save_opc(sunset)
except Exception as e:
logging.getLogger().error(traceback.format_exc())
raise
def save_opc(self, sunset):
# setup values
if 'tag_sunset' in self.config['OPC_STORAGE'] and \
self.config['OPC_STORAGE']['tag_sunset'] is not None:
opc_tags = [self.config['OPC_STORAGE']['tag_sunset']]
types = ['float']
values = [sunset.hour*3600 + sunset.minute*60 + sunset.second]
# write data to OPC
self.opcclient.write(opc_tags, types, values)
def __init__(self):
# call parent constructor
super().__init__()
# setup OPC interface
if self.config['OPC_STORAGE']['enabled']:
self.opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
# setup power calculator
self.calculator = PowerCalculator(self.config)
def __init__(self):
# call parent constructor
super().__init__()
# setup OPC interface
if self.config['OPC_STORAGE']['enabled']:
self.opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
# setup mqtt connection
if self.config['MQTT_STORAGE']['enabled']:
self.mqtt = mqtt.Client()
# quick and dirty: we assume to be connected before we finished email parsing...
#self.mqtt.on_connect = self._on_mqtt_connect
if 'user' in self.config['MQTT_STORAGE']:
self.mqtt.username_pw_set(self.config['MQTT_STORAGE']['user'],
self.config['MQTT_STORAGE']['password'])
self.mqtt.connect(self.config['MQTT_STORAGE']['host'], self.config['MQTT_STORAGE']['port'])
self.mqtt.loop_start()
# setup data members
self.data = None
class Zamg(StandardScript):
def __init__(self):
# call parent constructor
super().__init__()
# setup OPC interface
if self.config['OPC_STORAGE']['enabled']:
self.opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
# setup mqtt connection
if self.config['MQTT_STORAGE']['enabled']:
self.mqtt = mqtt.Client()
# quick and dirty: we assume to be connected before we finished email parsing...
#self.mqtt.on_connect = self._on_mqtt_connect
if 'user' in self.config['MQTT_STORAGE']:
self.mqtt.username_pw_set(self.config['MQTT_STORAGE']['user'],
self.config['MQTT_STORAGE']['password'])
self.mqtt.connect(self.config['MQTT_STORAGE']['host'], self.config['MQTT_STORAGE']['port'])
self.mqtt.loop_start()
# setup data members
self.data = None
def process_csv(self, csv):
try:
decoder = CsvDecoder(self.config)
decoder.decode(csv)
# process data
self.sun_today = 0
# loop through data
for row in decoder.data:
# is this timestamp fitting?
timediff = (row['date']-datetime.datetime.utcnow()).total_seconds()
# is data not older than 1 hour?
if timediff > -3600:
# sum minutes of remaining sun for today
if row['date'].date() == datetime.datetime.utcnow().date():
self.sun_today += row['sun']
# is this the most recent timestamp?
if timediff <= 0:
# store this data row as our best guess
self.data = row
except Exception as e:
logging.getLogger().error(traceback.format_exc())
raise
def set_opc(self, temperature, sun):
# setup values
opc_tags = []
types = []
values = []
if 'tag_temperature' in self.config['OPC_STORAGE'] and \
self.config['OPC_STORAGE']['tag_temperature'] is not None:
# save temperature to OPC
opc_tags.append(self.config['OPC_STORAGE']['tag_temperature'])
types.append('float')
values.append(temperature)
if 'tag_sunpower' in self.config['OPC_STORAGE'] and \
self.config['OPC_STORAGE']['tag_sunpower'] is not None:
# save sunpower to OPC
opc_tags.append(self.config['OPC_STORAGE']['tag_sunpower'])
types.append('float')
values.append(sun)
# write data to OPC
if len(opc_tags):
self.opcclient.write(opc_tags, types, values)
def set_file(self, temperature, sun):
config = configparser.ConfigParser()
# read existing file data
if os.path.isfile(self.config['FILE_STORAGE']['filename']):
config.read(self.config['FILE_STORAGE']['filename'])
config[self.scriptname] = {}
config[self.scriptname]['Temperature'] = str(temperature)
config[self.scriptname]['SunPower'] = str(sun)
with open(self.config['FILE_STORAGE']['filename'], 'w') as configfile:
config.write(configfile)
def set_mqtt(self, temperature, sun, sun_today):
# publish values to MQTT broker
path = self.config['MQTT_STORAGE']['prefix']+"zamg"
self.mqtt.publish(path+"/temperature", temperature, retain=True)
self.mqtt.publish(path+"/sun", sun, retain=True)
self.mqtt.publish(path+"/sun_today", sun_today)
self.mqtt.publish(path+"/last_update", str(datetime.datetime.now()), retain=True)
def process_mail(self):
# check for entered configuration
if len(self.config['EMAIL']['servername']) == 0:
logging.getLogger().error("Please configure config file. Aborting.")
return
logging.getLogger().info("Retrieval from mail server " + self.config['EMAIL']['servername'])
try:
# setup mail parser
mailparser = MailParser(self.config)
mailparser.add_csvobserver(self.process_csv)
# start retrieval
mailparser.parse()
except Exception as e:
logging.getLogger().error(traceback.format_exc())
def process_data(self):
# if retrieval succeeded we have valid data now
if self.data:
logging.getLogger().info("Set temperature: {}, sun: {:2f}"
.format(self.data['temperature'], self.data['sun']/60))
# store temperature and sun power
if self.config['OPC_STORAGE']['enabled']:
self.set_opc(self.data['temperature'], self.data['sun']/60)
if self.config['FILE_STORAGE']['enabled']:
self.set_file(self.data['temperature'], self.data['sun']/60)
if self.config['MQTT_STORAGE']['enabled']:
self.set_mqtt(self.data['temperature'], self.data['sun']/60, self.sun_today)
class SunPower(StandardScript):
def __init__(self):
# call parent constructor
super().__init__()
# setup OPC interface
if self.config['OPC_STORAGE']['enabled']:
self.opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
# setup power calculator
self.calculator = PowerCalculator(self.config)
def process(self):
try:
# process effective angles
self.calculator.process(self.config['WINDOWS'])
# store power values
if self.config['OPC_STORAGE']['enabled']:
self.save_opc()
if self.config['FILE_STORAGE']['enabled']:
self.save_file()
except Exception as e:
logging.getLogger().error(traceback.format_exc())
raise
return self.calculator.power_values
def save_opc(self):
# store OPC requests
opc_tags = []
types = []
values = []
# setup values
for i in range(len(self.config['WINDOWS'])):
if self.config['WINDOWS'][i]['opc']['power'] is not None:
opc_tags.append(self.config['WINDOWS'][i]['opc']['power'])
types.append('float')
values.append(self.calculator.power_values[i])
# write data to OPC
if len(opc_tags) > 0:
self.opcclient.write(opc_tags, types, values)
def save_file(self):
config = configparser.ConfigParser()
# read existing file data
if os.path.isfile(self.config['FILE_STORAGE']['filename']):
try:
config.read(self.config['FILE_STORAGE']['filename'])
except configparser.ParsingError as e:
logging.getLogger().error("Error parsing file storage: " + str(e))
# recreate data of this script
config['sunpower'] = {}
for i in range(len(self.config['WINDOWS'])):
config['sunpower'][self.config['WINDOWS'][i]['name']] = \
str(self.calculator.power_values[i])
# save data file
with open(self.config['FILE_STORAGE']['filename'], 'w') as configfile:
config.write(configfile)
