Energy source base class. More...

#include "energy-source.h"

Inheritance diagram for ns3::energy::EnergySource:

Collaboration diagram for ns3::energy::EnergySource:

Public Member Functions
	EnergySource ()

	~EnergySource () override

void	AppendDeviceEnergyModel (Ptr< DeviceEnergyModel > deviceEnergyModelPtr)

void	ConnectEnergyHarvester (Ptr< EnergyHarvester > energyHarvesterPtr)

void	DisposeDeviceModels ()
	Calls Dispose () method of the device energy models.

DeviceEnergyModelContainer	FindDeviceEnergyModels (std::string name)

DeviceEnergyModelContainer	FindDeviceEnergyModels (TypeId tid)

virtual double	GetEnergyFraction ()=0

virtual double	GetInitialEnergy () const =0

Ptr< Node >	GetNode () const

virtual double	GetRemainingEnergy ()=0

virtual double	GetSupplyVoltage () const =0

void	InitializeDeviceModels ()
	Calls Start () method of the device energy models.

void	SetNode (Ptr< Node > node)
	Sets pointer to node containing this EnergySource.

virtual void	UpdateEnergySource ()=0
	This function goes through the list of DeviceEnergyModels to obtain total current draw at the energy source and updates remaining energy.

Public Member Functions inherited from ns3::Object
	Object ()
	Constructor.

	~Object () override
	Destructor.

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together.

void	Dispose ()
	Dispose of this Object.

AggregateIterator	GetAggregateIterator () const
	Get an iterator to the Objects aggregated to this one.

TypeId	GetInstanceTypeId () const override
	Get the most derived TypeId for this Object.

template<typename T >
Ptr< T >	GetObject () const
	Get a pointer to the requested aggregated Object.

template<>
Ptr< Object >	GetObject () const
	Specialization of () for objects of type ns3::Object.

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object by TypeId.

template<>
Ptr< Object >	GetObject (TypeId tid) const
	Specialization of (TypeId tid) for objects of type ns3::Object.

void	Initialize ()
	Invoke DoInitialize on all Objects aggregated to this one.

bool	IsInitialized () const
	Check if the object has been initialized.

void	UnidirectionalAggregateObject (Ptr< Object > other)
	Aggregate an Object to another Object.

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	Default constructor.

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor.

uint32_t	GetReferenceCount () const
	Get the reference count of the object.

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator.

void	Ref () const
	Increment the reference count.

void	Unref () const
	Decrement the reference count.

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor.

void	GetAttribute (std::string name, AttributeValue &value, bool permissive=false) const
	Get the value of an attribute, raising fatal errors if unsuccessful.

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising errors.

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful.

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors.

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context.

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context.

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context.

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context.

Static Public Member Functions
static TypeId	GetTypeId ()
	Get the type ID.

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId ()
	Register this type.

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId ()
	Get the type ID.

Protected Member Functions
void	BreakDeviceEnergyModelRefCycle ()
	This function is called to break reference cycle between EnergySource and DeviceEnergyModel.

double	CalculateTotalCurrent ()

void	NotifyEnergyChanged ()
	This function notifies all DeviceEnergyModel of energy changed event.

void	NotifyEnergyDrained ()
	This function notifies all DeviceEnergyModel of energy depletion event.

void	NotifyEnergyRecharged ()
	This function notifies all DeviceEnergyModel of energy recharged event.

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object.

virtual void	DoInitialize ()
	Initialize() implementation.

virtual void	NotifyNewAggregate ()
	Notify all Objects aggregated to this one of a new Object being aggregated.

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes.

virtual void	NotifyConstructionCompleted ()
	Notifier called once the ObjectBase is fully constructed.

Private Member Functions
void	DoDispose () override
	All child's implementation must call BreakDeviceEnergyModelRefCycle to ensure reference cycles to DeviceEnergyModel objects are broken.

Private Attributes
std::vector< Ptr< EnergyHarvester > >	m_harvesters
	Vector of EnergyHarvester pointer connected to the same energy source.

DeviceEnergyModelContainer	m_models
	List of device energy models installed on the same node.

Ptr< Node >	m_node
	Pointer to node containing this EnergySource.

Additional Inherited Members
Related Symbols inherited from ns3::ObjectBase
static TypeId	GetObjectIid ()
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly.

Detailed Description

Energy source base class.

This is the base class for energy sources. Energy sources keep track of remaining energy. Device energy models will be updating the remaining energy in the energy source. The energy source itself does not update the remaining energy. Energy source also keeps a list of device energy models installed on the same node. When the remaining energy level reaches 0, the energy source will notify all device energy models stored in the list.

EnergySource provides 2 types of interfaces for DeviceEnergyModels to update the remaining energy stored in EnergySource: -Direct energy update interface (Joules): DecreaseRemainingEnergy IncreaseRemainingEnergy -Indirect energy update interface (Current): UpdateEnergySource Direct energy update interface will decrease/increase energy from the source directly (in Joules). Direct energy update interface is typically used by simple DeviceEnergyModel which knows only average power consumption for each of its state. Indirect energy update interface uses the total current cumulated from all DeviceEnergyModel to calculate energy to decrease from the source. Indirect energy update interface is typically used by DeviceEnergyModel who knows its current draw for each of its states. Nonlinear EnergySource also uses this interface.

Unit of energy is chosen as Joules since energy models typically calculate energy as (time in seconds * power in Watts). If the energy source stores energy in different units (eg. kWh), a simple converter function should suffice.

Definition at line 76 of file energy-source.h.

Constructor & Destructor Documentation

◆ EnergySource()

ns3::energy::EnergySource::EnergySource ( )

Definition at line 36 of file energy-source.cc.

References NS_LOG_FUNCTION.

◆ ~EnergySource()

ns3::energy::EnergySource::~EnergySource ( )

override

Definition at line 41 of file energy-source.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

◆ AppendDeviceEnergyModel()

void ns3::energy::EnergySource::AppendDeviceEnergyModel ( Ptr< DeviceEnergyModel > deviceEnergyModelPtr )

Parameters

deviceEnergyModelPtr Pointer to device energy model.

This function appends a device energy model to the end of a list of DeviceEnergyModelInfo structs.

Definition at line 61 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Add(), m_models, NS_ASSERT, and NS_LOG_FUNCTION.

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◆ BreakDeviceEnergyModelRefCycle()

void ns3::energy::EnergySource::BreakDeviceEnergyModelRefCycle ( )

protected

This function is called to break reference cycle between EnergySource and DeviceEnergyModel.

Child of the EnergySource base class must call this function in their implementation of DoDispose to make sure the reference cycle is broken.

Normally this work will be completed by the DoDispose function. However it will be overridden in the child class. Hence we introduced this function.

Definition at line 225 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Clear(), m_harvesters, m_models, m_node, and NS_LOG_FUNCTION.

Referenced by ns3::energy::BasicEnergySource::DoDispose(), DoDispose(), ns3::energy::GenericBatteryModel::DoDispose(), ns3::energy::LiIonEnergySource::DoDispose(), and ns3::energy::RvBatteryModel::DoDispose().

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◆ CalculateTotalCurrent()

double ns3::energy::EnergySource::CalculateTotalCurrent ( )

protected

Returns: Total current draw from all DeviceEnergyModels.

Definition at line 154 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Begin(), ns3::energy::DeviceEnergyModelContainer::End(), GetSupplyVoltage(), m_harvesters, m_models, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by ns3::energy::BasicEnergySource::CalculateRemainingEnergy(), ns3::energy::GenericBatteryModel::CalculateRemainingEnergy(), ns3::energy::LiIonEnergySource::CalculateRemainingEnergy(), and ns3::energy::RvBatteryModel::UpdateEnergySource().

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◆ ConnectEnergyHarvester()

void ns3::energy::EnergySource::ConnectEnergyHarvester ( Ptr< EnergyHarvester > energyHarvesterPtr )

Parameters

energyHarvesterPtr Pointer to energy harvester.

This function connect an energy harvester to the energy source. After the execution of this method, the pointer to the energy harvester is appended to the end of a vector of EnergyHarvester pointer. Note that the order in which different energy harvester are added to the energy source does not impact the simulation results.

Definition at line 131 of file energy-source.cc.

References m_harvesters, NS_ASSERT, and NS_LOG_FUNCTION.

◆ DisposeDeviceModels()

void ns3::energy::EnergySource::DisposeDeviceModels ( )

Calls Dispose () method of the device energy models.

Device energy models are not aggregated to the node, therefore we need to manually start them here. Called by EnergySourceContainer, which is aggregated to the node.

Definition at line 116 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Begin(), ns3::energy::DeviceEnergyModelContainer::End(), m_models, and NS_LOG_FUNCTION.

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◆ DoDispose()

void ns3::energy::EnergySource::DoDispose ( )

overrideprivatevirtual

All child's implementation must call BreakDeviceEnergyModelRefCycle to ensure reference cycles to DeviceEnergyModel objects are broken.

Defined in ns3::Object

Reimplemented from ns3::Object.

Reimplemented in ns3::energy::GenericBatteryModel, ns3::energy::LiIonEnergySource, and ns3::energy::RvBatteryModel.

Definition at line 143 of file energy-source.cc.

References BreakDeviceEnergyModelRefCycle(), and NS_LOG_FUNCTION.

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◆ FindDeviceEnergyModels() [1/2]

DeviceEnergyModelContainer ns3::energy::EnergySource::FindDeviceEnergyModels ( std::string name )

Parameters

name	name of the DeviceEnergyModel we are searching for.

Returns: List of pointers to DeviceEnergyModel objects installed on node.

Definition at line 85 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Begin(), ns3::energy::DeviceEnergyModelContainer::End(), m_models, and NS_LOG_FUNCTION.

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◆ FindDeviceEnergyModels() [2/2]

DeviceEnergyModelContainer ns3::energy::EnergySource::FindDeviceEnergyModels ( TypeId tid )

Parameters

tid	TypeId of the DeviceEnergyModel we are searching for.

Returns: List of pointers to DeviceEnergyModel objects installed on node.

Definition at line 69 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Begin(), ns3::energy::DeviceEnergyModelContainer::End(), m_models, and NS_LOG_FUNCTION.

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◆ GetEnergyFraction()

virtual double ns3::energy::EnergySource::GetEnergyFraction ( )

pure virtual

Returns: Energy fraction = remaining energy / initial energy [0, 1]

This function returns the percentage of energy left in the energy source.

Implemented in ns3::energy::BasicEnergySource, ns3::energy::GenericBatteryModel, ns3::energy::LiIonEnergySource, and ns3::energy::RvBatteryModel.

◆ GetInitialEnergy()

virtual double ns3::energy::EnergySource::GetInitialEnergy ( ) const

pure virtual

Returns: Initial energy (capacity) of the energy source.

Set method is to be defined in child class only if necessary. For sources with a fixed initial energy (energy capacity), set method is not needed.

Implemented in ns3::energy::BasicEnergySource, ns3::energy::GenericBatteryModel, ns3::energy::LiIonEnergySource, and ns3::energy::RvBatteryModel.

◆ GetNode()

Ptr< Node > ns3::energy::EnergySource::GetNode ( ) const

Returns: Pointer to node containing this EnergySource.

When a subclass needs to get access to the underlying node base class to print the nodeId for example, it can invoke this method.

Definition at line 55 of file energy-source.cc.

References m_node.

Referenced by ns3::energy::LiIonEnergySource::HandleEnergyDrainedEvent(), and ns3::energy::LiIonEnergySource::UpdateEnergySource().

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◆ GetRemainingEnergy()

virtual double ns3::energy::EnergySource::GetRemainingEnergy ( )

pure virtual

Returns: Remaining energy at the energy source.

Implemented in ns3::energy::BasicEnergySource, ns3::energy::GenericBatteryModel, ns3::energy::LiIonEnergySource, and ns3::energy::RvBatteryModel.

◆ GetSupplyVoltage()

virtual double ns3::energy::EnergySource::GetSupplyVoltage ( ) const

pure virtual

Returns: Supply voltage of the energy source.

Set method is to be defined in child class only if necessary. For sources with a fixed supply voltage, set method is not needed.

Implemented in ns3::energy::BasicEnergySource, ns3::energy::GenericBatteryModel, ns3::energy::LiIonEnergySource, and ns3::energy::RvBatteryModel.

Referenced by CalculateTotalCurrent().

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◆ GetTypeId()

TypeId ns3::energy::EnergySource::GetTypeId ( )

static

Get the type ID.

Returns: The object TypeId.

Definition at line 27 of file energy-source.cc.

References ns3::TypeId::AddDeprecatedName(), and ns3::TypeId::SetParent().

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◆ InitializeDeviceModels()

void ns3::energy::EnergySource::InitializeDeviceModels ( )

Calls Start () method of the device energy models.

Device energy models are not aggregated to the node, therefore we need to manually start them here. Called by EnergySourceContainer, which is aggregated to the node.

Definition at line 101 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Begin(), ns3::energy::DeviceEnergyModelContainer::End(), m_models, and NS_LOG_FUNCTION.

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◆ NotifyEnergyChanged()

void ns3::energy::EnergySource::NotifyEnergyChanged ( )

protected

This function notifies all DeviceEnergyModel of energy changed event.

It is called by the child EnergySource class when energy source is changed.

Definition at line 213 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Begin(), ns3::energy::DeviceEnergyModelContainer::End(), m_models, and NS_LOG_FUNCTION.

Referenced by ns3::energy::BasicEnergySource::UpdateEnergySource().

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◆ NotifyEnergyDrained()

void ns3::energy::EnergySource::NotifyEnergyDrained ( )

protected

This function notifies all DeviceEnergyModel of energy depletion event.

It is called by the child EnergySource class when energy depletion happens.

Definition at line 189 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Begin(), ns3::energy::DeviceEnergyModelContainer::End(), m_models, and NS_LOG_FUNCTION.

Referenced by ns3::energy::GenericBatteryModel::BatteryDepletedEvent(), ns3::energy::BasicEnergySource::HandleEnergyDrainedEvent(), ns3::energy::LiIonEnergySource::HandleEnergyDrainedEvent(), and ns3::energy::RvBatteryModel::HandleEnergyDrainedEvent().

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◆ NotifyEnergyRecharged()

void ns3::energy::EnergySource::NotifyEnergyRecharged ( )

protected

This function notifies all DeviceEnergyModel of energy recharged event.

It is called by the child EnergySource class when energy source is recharged.

Definition at line 201 of file energy-source.cc.

References ns3::energy::DeviceEnergyModelContainer::Begin(), ns3::energy::DeviceEnergyModelContainer::End(), m_models, and NS_LOG_FUNCTION.

Referenced by ns3::energy::GenericBatteryModel::BatteryChargedEvent(), and ns3::energy::BasicEnergySource::HandleEnergyRechargedEvent().

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◆ SetNode()

void ns3::energy::EnergySource::SetNode ( Ptr< Node > node )

Sets pointer to node containing this EnergySource.

Parameters

node	Pointer to node containing this EnergySource.

Definition at line 47 of file energy-source.cc.

References m_node, NS_ASSERT, and NS_LOG_FUNCTION.

◆ UpdateEnergySource()

virtual void ns3::energy::EnergySource::UpdateEnergySource ( )

pure virtual

This function goes through the list of DeviceEnergyModels to obtain total current draw at the energy source and updates remaining energy.

Called by DeviceEnergyModels to inform EnergySource of a state change.

Implemented in ns3::energy::BasicEnergySource, ns3::energy::GenericBatteryModel, ns3::energy::LiIonEnergySource, and ns3::energy::RvBatteryModel.

Member Data Documentation

◆ m_harvesters

std::vector<Ptr<EnergyHarvester> > ns3::energy::EnergySource::m_harvesters

private

Vector of EnergyHarvester pointer connected to the same energy source.

This vector is used by the CalculateTotalCurrent method to determine the total power provided by the energy harvesters connected to the energy source.

Definition at line 208 of file energy-source.h.

Referenced by BreakDeviceEnergyModelRefCycle(), CalculateTotalCurrent(), and ConnectEnergyHarvester().

◆ m_models

DeviceEnergyModelContainer ns3::energy::EnergySource::m_models

private

List of device energy models installed on the same node.

Definition at line 195 of file energy-source.h.

Referenced by AppendDeviceEnergyModel(), BreakDeviceEnergyModelRefCycle(), CalculateTotalCurrent(), DisposeDeviceModels(), FindDeviceEnergyModels(), FindDeviceEnergyModels(), InitializeDeviceModels(), NotifyEnergyChanged(), NotifyEnergyDrained(), and NotifyEnergyRecharged().

◆ m_node

Ptr<Node> ns3::energy::EnergySource::m_node

private

Pointer to node containing this EnergySource.

Used by helper class to make sure device models are installed onto the corresponding node.

Definition at line 201 of file energy-source.h.

Referenced by BreakDeviceEnergyModelRefCycle(), GetNode(), and SetNode().

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

src/energy/model/energy-source.h
src/energy/model/energy-source.cc

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ EnergySource()

◆ ~EnergySource()

Member Function Documentation

◆ AppendDeviceEnergyModel()

◆ BreakDeviceEnergyModelRefCycle()

◆ CalculateTotalCurrent()

◆ ConnectEnergyHarvester()

◆ DisposeDeviceModels()

◆ DoDispose()

◆ FindDeviceEnergyModels() [1/2]

◆ FindDeviceEnergyModels() [2/2]

◆ GetEnergyFraction()

◆ GetInitialEnergy()

◆ GetNode()

◆ GetRemainingEnergy()

◆ GetSupplyVoltage()

◆ GetTypeId()

◆ InitializeDeviceModels()

◆ NotifyEnergyChanged()

◆ NotifyEnergyDrained()

◆ NotifyEnergyRecharged()

◆ SetNode()

◆ UpdateEnergySource()

Member Data Documentation

◆ m_harvesters

◆ m_models

◆ m_node