- generalized heaters

components/actor/heater_hendi.py

@@ -10,13 +10,16 @@ class HeaterHendi(AHeater):
 		self.power_eff = 0
 
 	def get_power_min(self):
-		caps = self.hendi.getCapabilties()
-		return caps['pwr_watts_min']
+		return 0
 
 	def get_power_max(self):
 		caps = self.hendi.getCapabilties()
 		return caps['pwr_watts_max']
 
+	def get_powers(self):
+		caps = self.hendi.getCapabilties()
+		return [0].extend(caps['pwr_list'])
+
 	def activate(self, enable):
 		if enable:
 			self.hendi.remoteEnable(1)

components/actor/heater_sim.py

@@ -6,12 +6,16 @@ class HeaterSim(AHeater):
 		AHeater.__init__(self)
 		self.power_set = 0
 		self.power_eff = 0
+		self.powers = [0, 500,  600,  700,  800,  900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300, 3400, 3500]
 
 	def get_power_min(self):
-		return 500
+		return self.powers[0]
 
 	def get_power_max(self):
-		return 3500
+		return self.powers[-1]
+
+	def get_powers(self):
+		return self.powers
 
 	def process(self):
 		power = 100*round(self.power_set/100, 0)

components/actor/hendiCtrl.py

@@ -18,17 +18,20 @@ class HendiCtrl:
 
 		self.ser.timeout = 1.000
 		self.prompt = b':'
+
+		powers = [500,  600,  700,  800,  900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300,3400, 3500]
+		digits = [4092, 3840, 3700, 3440, 3300, 3060, 3000, 2930, 2860, 2780, 2640, 2510, 2430, 2360, 2190, 2130, 2030, 1980, 1880, 1730, 1630, 1560, 1480, 1400, 1240, 1150, 1150, 1080, 920, 740, 670]
 		self.caps = {
 			"sw_id"				: self.getSoftwareIdentifier(),
 			"sw_ver"			: self.getSoftwareVersion(),
-			"pwr_watts_min"		: 500,
-			"pwr_watts_max"		: 3500,
+			"pwr_watts_min"		: powers[0],
+			"pwr_watts_max"		: powers[-1],
+			"pwr_list"			: powers,
 			"pwr_watts_step"	: 100,
-			"pwr_digits_min"	: 4092,
-			"pwr_digits_max"	: 670
+			"pwr_digits_min"	: digits[0],
+			"pwr_digits_max"	: digits[-1],
+			"digit_list"		: digits
 		}
-		powers = [ 500,  600,  700,  800,  900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300,3400, 3500]
-		digits = [4092, 3840, 3700, 3440, 3300, 3060, 3000, 2930, 2860, 2780, 2640, 2510, 2430, 2360, 2190, 2130, 2030, 1980, 1880, 1730, 1630, 1560, 1480, 1400, 1240, 1150, 1150, 1080, 920, 740, 670]
 		self.poly_w2d = np.polyfit(powers, digits, 5)
 		self.poly_d2w = np.polyfit(digits, powers, 5)
 		self.sw_id = self.getSoftwareIdentifier()

components/aheater.py

@@ -16,6 +16,10 @@ class AHeater(AttributeChange):
 	def get_power_max(self):
 		pass
 
+	@abc.abstractmethod
+	def get_powers(self):
+		pass
+
 	@contextmanager
 	def open(self):
 		try:

tasks/heater.py

@@ -34,6 +34,20 @@ class HeaterTask(ATask):
 	async def send(self, data):
 		await self.msg_handler.send(data)
 
+	def get_next_smaller_power(self, power):
+		result = self.device.get_power_min()
+		p_list = [p for p in self.device.get_powers() if p <= power]
+		if len(p_list) > 0:
+			result = p_list[-1]
+		return result
+
+	def get_next_greater_power(self, power):
+		result = self.device.get_power_min()
+		p_list = [p for p in self.device.get_powers() if p > power]
+		if len(p_list) > 0:
+			result = p_list[0]
+		return result
+
 	async def on_process(self):
 		print("{}: Started with interval {} s".format(self.msg_handler.get_key(), self.interval))
 		await self.send({'Capabilities': {'Power': {'Min': 0, 'Max': self.device.get_power_max()}}})
@@ -45,22 +59,26 @@ class HeaterTask(ATask):
 
 		with self.device.open():
 			while True:
+				# Combine power set from different sources
 				power_soll = max(self.power_soll, self.power_actor)
-				on_count = pulse_period_count
-				if self.device.get_power_min() > 0:
-					on_count = pulse_period_count*min(1, power_soll / self.device.get_power_min())
+
+				# Calculate duty cycle
+				power_low = self.get_next_smaller_power(power_soll)
+				power_high = self.get_next_greater_power(power_soll)
+				power_step = power_high - power_low
+				power_diff = power_soll - power_low
+				duty = power_diff / power_step
+
+				on_count = pulse_period_count*duty
 
 				self.pulse_counter += 1
 				if self.pulse_counter >= pulse_period_count:
 					self.pulse_counter = 0
 
-				if power_soll < self.device.get_power_min():
-					if power_soll == 0 or self.pulse_counter >= on_count:
-						self.device.set_power(0)
-					elif self.pulse_counter < on_count:
-						self.device.set_power(self.device.get_power_min())
-				else:
-					self.device.set_power(power_soll)
+				if power_soll == 0 or self.pulse_counter >= on_count:
+					self.device.set_power(power_low)
+				elif self.pulse_counter < on_count:
+					self.device.set_power(power_high)
 
 				self.device.process()
 				await asyncio.sleep(self.interval)