Class Ifc4::IfcSensor

Nested Relationships

This class is a nested type of Struct Ifc4.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4::IfcSensor : public Ifc4::IfcDistributionControlElement

A sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument.

HISTORY New entity in IFC2x4

Type Use Definition IfcSensor defines the occurrence of any sensor; common information about sensor types is handled by IfcSensorType. The IfcSensorType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcSensorType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcSensorType has ports or aggregated elements, such objects are reflected at the IfcSensor occurrence using the IfcRelDefinesByObject relationship. Figure 179 illustrates sensor type use. Figure 179 — Sensor type use

Property Use Definition The property sets relating to this entity are defined by IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. Property sets may also be specified at the IfcSensorType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcSensorType.HasPropertySets. If both are given, then the properties directly defined at IfcSensor override the properties defined at IfcSensorType. Refer to the documentation at the supertype IfcDistributionControlElement and ancestors for inherited property set definitions. The following property set definitions are applicable to this entity: (All Types)

Pset_SensorPHistory (PSET_PERFORMANCEDRIVEN) Pset_SensorTypeCommon (PSET_TYPEDRIVENOVERRIDE)

CONDUCTANCESENSOR

Pset_SensorTypeConductanceSensor (PSET_TYPEDRIVENOVERRIDE)

CONTACTSENSOR

Pset_SensorTypeContactSensor (PSET_TYPEDRIVENOVERRIDE)

FIRESENSOR

Pset_SensorTypeFireSensor (PSET_TYPEDRIVENOVERRIDE)

FLOWSENSOR

Pset_SensorTypeFlowSensor (PSET_TYPEDRIVENOVERRIDE)

GASSENSOR

Pset_SensorTypeGasSensor (PSET_TYPEDRIVENOVERRIDE)

HEATSENSOR

Pset_SensorTypeHeatSensor (PSET_TYPEDRIVENOVERRIDE)

HUMIDITYSENSOR

Pset_SensorTypeHumiditySensor (PSET_TYPEDRIVENOVERRIDE)

IONCONCENTRATIONSENSOR

Pset_SensorTypeIonConcentrationSensor (PSET_TYPEDRIVENOVERRIDE)

LEVEL

Pset_SensorTypeLevelSensor (PSET_TYPEDRIVENOVERRIDE)

LIGHTSENSOR

Pset_SensorTypeLightSensor (PSET_TYPEDRIVENOVERRIDE)

MOISTURESENSOR

Pset_SensorTypeMoistureSensor (PSET_TYPEDRIVENOVERRIDE)

MOVEMENTSENSOR

Pset_SensorTypeMovementSensor (PSET_TYPEDRIVENOVERRIDE)

PHSENSOR

Pset_SensorTypePHSensor (PSET_TYPEDRIVENOVERRIDE)

PRESSURESENSOR

Pset_SensorTypePressureSensor (PSET_TYPEDRIVENOVERRIDE)

RADIATIONSENSOR

Pset_SensorTypeRadiationSensor (PSET_TYPEDRIVENOVERRIDE)

RADIOACTIVITYSENSOR

Pset_SensorTypeRadioactivitySensor (PSET_TYPEDRIVENOVERRIDE)

SMOKESENSOR

Pset_SensorTypeSmokeSensor (PSET_TYPEDRIVENOVERRIDE)

SOUNDSENSOR

Pset_SensorTypeSoundSensor (PSET_TYPEDRIVENOVERRIDE)

TEMPERATURESENSOR

Pset_SensorTypeTemperatureSensor (PSET_TYPEDRIVENOVERRIDE)

WINDSENSOR

Pset_SensorTypeWindSensor (PSET_TYPEDRIVENOVERRIDE)

Quantity Use Definition The quantities relating to this entity are defined by IfcElementQuantity and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. The following base quantities are defined and shall be exchanged with the IfcElementQuantity.Name = ‘BaseQuantities’. Other quantities, being subjected to local standard of measurement, may be defined with another string value assigned to Name. In this case a valid value for MethodOfMeasurement shall be provided.

Qto_SensorBaseQuantities

Material Use Definition The material of the IfcSensor is defined by IfcMaterialConstituentSet or as a fallback by IfcMaterial, and attached by the RelatingMaterial attribute on the IfcRelAssociatesMaterial relationship. It is accessible by the HasAssociations inverse attribute. Material information can also be given at the IfcSensorType, defining the common attribute data for all occurrences of the same type. The following keywords for IfcMaterialConstituentSet.MaterialConstituents[n].Name shall be used:

Casing: Material from which the casing is constructed.

Connection Use Definition The IfcSensor may be connected to other objects as follows using the indicated relationship:

IfcDistributionFlowElement (IfcRelFlowControlElements): Sensors may be connected to a flow element for which an aspect of the fluid or flow is measured. IfcElement (IfcRelConnectsElements): Sensors may be attached to the exterior of an element.

Port Use Definition The distribution ports relating to the IfcSensor are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the sensor occurrence is defined by IfcSensorType, then the port occurrences must reflect those defined at the IfcSensorType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcSensor PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:

Output (SIGNAL, SOURCE): Transmits signal.

Figure 180 illustrates sensor port use. Figure 180 — Sensor port use

Public Types

typedef IfcTemplatedEntityList<IfcSensor> list

Public Functions

bool hasPredefinedType() const

Whether the optional attribute PredefinedType is defined for this IfcSensor.

::Ifc4::IfcSensorTypeEnum::Value PredefinedType() const
void setPredefinedType(::Ifc4::IfcSensorTypeEnum::Value v)
const IfcParse::entity &declaration() const
IfcSensor(IfcEntityInstanceData *e)
IfcSensor(std::string v1_GlobalId, ::Ifc4::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4::IfcProductRepresentation *v7_Representation, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4::IfcSensorTypeEnum::Value> v9_PredefinedType)

Public Static Functions

const IfcParse::entity &Class()