class PowerMeterApatorEC3Repeating:
min_averaging_secs: float
_power_meter: PowerMeterApatorEC3
_timer: RepeatTimer
reading: Optional[PowerMeterReading]
reading_ts: Optional[float]
success: bool
high: SingleCounter
low: SingleCounter
callbacks: List[Callable[[Optional[PowerMeterReading]], None]]
def __init__(self, power_meter: PowerMeterApatorEC3, interval: float, min_averaging_secs: float):
self.min_averaging_secs = min_averaging_secs
self._power_meter = power_meter
self._timer = RepeatTimer(interval, self._acquire)
self.reading = None
self.reading_ts = None
self.success = False
self.high = SingleCounter()
self.low = SingleCounter()
self.callbacks = []
def add_callback(self, callback: Callable[[Optional[PowerMeterReading]], None]):
self.callbacks.append(callback)
def start(self):
if not self._timer.is_alive():
self._timer.start()
def stop(self):
self._timer.cancel()
self._power_meter.close()
def _acquire(self):
try:
ts = time.time()
self.reading = self._power_meter.read()
self.reading_ts = ts
self._update_high_power()
self._update_low_power()
self.success = True
except SerialException:
self.success = False
self._fire()
def _update_low_power(self):
self.low.update(self.reading.consumption_low_sum_kwh, self.reading_ts, self.min_averaging_secs, self.high)
def _update_high_power(self):
self.high.update(self.reading.consumption_high_sum_kwh, self.reading_ts, self.min_averaging_secs, self.low)
def _fire(self):
for callback in self.callbacks:
callback(self.reading)
