Control humidity using cascade PID: outer PID loop sets setpoints of two inner flow controllers, which drive a solenoid valve each. Adjust the public setpoint variable and call update(). More...

#include <CascadeHumidistat.h>

Inheritance diagram for CascadeHumidistat:

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Collaboration diagram for CascadeHumidistat:

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Public Member Functions
	CascadeHumidistat (HumiditySensor hs, const ConfigStore cs, etl::span< const FlowSensor, 2 > flowSensors, etl::array< uint8_t, 2 > pins_solenoid, uint8_t pwmRes)
	Constructor.

const FlowController *	getInner (uint8_t n) const
	Get a pointer to a inner FlowController instance.

void	update ()

void	updatePIDParameters ()

Public Member Functions inherited from Humidistat
	Humidistat (const ConfigStore cs, HumiditySensor hs, double Kp, double Ki, double Kd, double Kf, uint16_t dt, double cvMin, double cvMax)
	Constructor.

double	getHumidity () const
	Read the humidity.

double	getTemperature () const
	Read the temperature.

double	getCvMin () const

double	getCvMax () const

Public Member Functions inherited from Controller
	Controller (const ConfigStore *cs, double Kp, double Ki, double Kd, double Kf, uint16_t dt, double cvMin, double cvMax, double defaultSP, double defaultCV)
	Constructor.

void	getTerms (double &pTerm, double &iTerm, double &dTerm) const
	Get the three PID terms by reference.

void	update ()
	Run the controller: Typically reads a sensor, runs a cycle of the PID loop and drives some actuator.

void	updatePIDParameters ()
	Update the PID parameters from the configStore.

const ConfigStore *	getConfigStore ()
	Get a pointer to the ConfigStore instance.

Private Attributes
FlowController	fcs [2]

Additional Inherited Members
Public Attributes inherited from Controller
bool	active = false

double	pv = 0
	Process variable.

double	sp
	Setpoint.

double	cv
	Control variable.

Protected Member Functions inherited from Humidistat
void	runCycle ()
	Run a cycle of the controller. Reads a sample from the humidity controller and runs PID.

Protected Attributes inherited from Humidistat
HumiditySensor &	hs

Protected Attributes inherited from Controller
PID	pid

const ConfigStore &	cs

unsigned long	sensorLastRead = 0

Detailed Description

Control humidity using cascade PID: outer PID loop sets setpoints of two inner flow controllers, which drive a solenoid valve each. Adjust the public setpoint variable and call update().

Definition at line 15 of file CascadeHumidistat.h.

Constructor & Destructor Documentation

◆ CascadeHumidistat()

CascadeHumidistat::CascadeHumidistat	(	HumiditySensor *	hs,
		const ConfigStore *	cs,
		etl::span< const FlowSensor, 2 >	flowSensors,
		etl::array< uint8_t, 2 >	pins_solenoid,
		uint8_t	pwmRes )

Constructor.

Parameters

hs	Pointer to a HumiditySensor instance
cs	Pointer to a ConfigStore instance
flowSensors	Span over 2 FlowSensor instances
pins_solenoid	Array of 2 integers corresponding to the solenoid pins
pwmRes	PWM resolution (bits)

Definition at line 3 of file CascadeHumidistat.cpp.

Member Function Documentation

◆ getInner()

const FlowController * CascadeHumidistat::getInner ( uint8_t n ) const

nodiscard

Get a pointer to a inner FlowController instance.

Parameters

n	the index of the FlowController (0 or 1)

Returns: pointer to the FlowController instance.

Definition at line 24 of file CascadeHumidistat.cpp.

◆ update()

void CascadeHumidistat::update ( )

Definition at line 13 of file CascadeHumidistat.cpp.

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◆ updatePIDParameters()

void CascadeHumidistat::updatePIDParameters ( )

Definition at line 28 of file CascadeHumidistat.cpp.

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Member Data Documentation

◆ fcs

FlowController CascadeHumidistat::fcs[2]

private

Definition at line 17 of file CascadeHumidistat.h.

The documentation for this class was generated from the following files:

src/control/CascadeHumidistat.h
src/control/CascadeHumidistat.cpp

Public Member Functions

Private Attributes

Additional Inherited Members