diff options
Diffstat (limited to 'src/home/mqtt/module/inverter.py')
| -rw-r--r-- | src/home/mqtt/module/inverter.py | 128 |
1 files changed, 123 insertions, 5 deletions
diff --git a/src/home/mqtt/module/inverter.py b/src/home/mqtt/module/inverter.py index 9cf2978..d927a06 100644 --- a/src/home/mqtt/module/inverter.py +++ b/src/home/mqtt/module/inverter.py @@ -1,13 +1,31 @@ -import struct +import time +import json +import datetime +try: + import inverterd +except: + pass +from typing import Optional +from .._module import MqttModule from .._node import MqttNode from .._payload import MqttPayload, bit_field +try: + from home.database import InverterDatabase +except: + pass _mult_10 = lambda n: int(n*10) _div_10 = lambda n: n/10 -class Status(MqttPayload): +MODULE_NAME = 'MqttInverterModule' + +STATUS_TOPIC = 'status' +GENERATION_TOPIC = 'generation' + + +class MqttInverterStatusPayload(MqttPayload): # 46 bytes FORMAT = 'IHHHHHHBHHHHHBHHHHHHHH' @@ -65,7 +83,7 @@ class Status(MqttPayload): load_connected: bit_field(0, 16, 1) -class Generation(MqttPayload): +class MqttInverterGenerationPayload(MqttPayload): # 8 bytes FORMAT = 'II' @@ -73,5 +91,105 @@ class Generation(MqttPayload): wh: int -class MqttInverterModule(MqttNode): - pass +class MqttInverterModule(MqttModule): + _status_poll_freq: int + _generation_poll_freq: int + _inverter: Optional[inverterd.Client] + _database: Optional[InverterDatabase] + _gen_prev: float + + def __init__(self, status_poll_freq=0, generation_poll_freq=0): + super().__init__(tick_interval=status_poll_freq) + self._status_poll_freq = status_poll_freq + self._generation_poll_freq = generation_poll_freq + + # this defines whether this is a publisher or a subscriber + if status_poll_freq > 0: + self._inverter = inverterd.Client() + self._inverter.connect() + self._inverter.format(inverterd.Format.SIMPLE_JSON) + self._database = None + else: + self._inverter = None + self._database = InverterDatabase() + + self._gen_prev = 0 + + def on_connect(self, mqtt: MqttNode): + super().on_connect(mqtt) + if not self._inverter: + mqtt.subscribe_module(STATUS_TOPIC, self) + mqtt.subscribe_module(GENERATION_TOPIC, self) + + def tick(self): + if not self._inverter: + return + + # read status + now = time.time() + try: + raw = self._inverter.exec('get-status') + except inverterd.InverterError as e: + self._logger.error(f'inverter error: {str(e)}') + # TODO send to server + return + + data = json.loads(raw)['data'] + status = MqttInverterStatusPayload(time=round(now), **data) + self._mqtt_node_ref.publish(STATUS_TOPIC, status.pack()) + + # read today's generation stat + now = time.time() + if self._gen_prev == 0 or now - self._gen_prev >= self._generation_poll_freq: + self._gen_prev = now + today = datetime.date.today() + try: + raw = self._inverter.exec('get-day-generated', (today.year, today.month, today.day)) + except inverterd.InverterError as e: + self._logger.error(f'inverter error: {str(e)}') + # TODO send to server + return + + data = json.loads(raw)['data'] + gen = MqttInverterGenerationPayload(time=round(now), wh=data['wh']) + self._mqtt_node_ref.publish(GENERATION_TOPIC, gen.pack()) + + def handle_payload(self, mqtt: MqttNode, topic: str, payload: bytes) -> Optional[MqttPayload]: + home_id = 1 # legacy compat + + if topic == STATUS_TOPIC: + s = MqttInverterStatusPayload.unpack(payload) + self._database.add_status(home_id=home_id, + client_time=s.time, + grid_voltage=int(s.grid_voltage*10), + grid_freq=int(s.grid_freq * 10), + ac_output_voltage=int(s.ac_output_voltage * 10), + ac_output_freq=int(s.ac_output_freq * 10), + ac_output_apparent_power=s.ac_output_apparent_power, + ac_output_active_power=s.ac_output_active_power, + output_load_percent=s.output_load_percent, + battery_voltage=int(s.battery_voltage * 10), + battery_voltage_scc=int(s.battery_voltage_scc * 10), + battery_voltage_scc2=int(s.battery_voltage_scc2 * 10), + battery_discharge_current=s.battery_discharge_current, + battery_charge_current=s.battery_charge_current, + battery_capacity=s.battery_capacity, + inverter_heat_sink_temp=s.inverter_heat_sink_temp, + mppt1_charger_temp=s.mppt1_charger_temp, + mppt2_charger_temp=s.mppt2_charger_temp, + pv1_input_power=s.pv1_input_power, + pv2_input_power=s.pv2_input_power, + pv1_input_voltage=int(s.pv1_input_voltage * 10), + pv2_input_voltage=int(s.pv2_input_voltage * 10), + mppt1_charger_status=s.mppt1_charger_status, + mppt2_charger_status=s.mppt2_charger_status, + battery_power_direction=s.battery_power_direction, + dc_ac_power_direction=s.dc_ac_power_direction, + line_power_direction=s.line_power_direction, + load_connected=s.load_connected) + return s + + elif topic == GENERATION_TOPIC: + gen = MqttInverterGenerationPayload.unpack(payload) + self._database.add_generation(home_id, gen.time, gen.wh) + return gen |