IfcRegularTimeSeries

Natural language names
Serie mit regelmäßigen Zeitabständen
Regular Time Series
Séries temporelles régulières
Change log
ItemSPFXMLChangeDescription
4.0.0.0
    IfcRegularTimeSeriesMOVEDSchema changed from IFCTIMESERIESRESOURCE to IFCDATETIMERESOURCE.
      StartTimeXXMODIFIEDType changed from IfcDateTimeSelect to IfcDateTime.
      EndTimeXXMODIFIEDType changed from IfcDateTimeSelect to IfcDateTime.
Semantic definitions at the entity
Entity definition

In a regular time series, the data arrives predictably at predefined intervals. In a regular time series there is no need to store multiple time stamps and the algorithms for analyzing the time series are therefore significantly simpler. Using the start time provided in the supertype, the time step is used to identify the frequency of the occurrences of the list of values.

EXAMPLE  A smoke detector samples the concentration of particulates in a space at a fixed rate (for example, every six seconds); a control system measures the outside air temperature every hour.
HISTORY  New entity in IFC2x2.
Attribute definitions
#AttributeTypeCardinalityDescription G
9TimeStepIfcTimeMeasure A duration of time intervals between values.X
10ValuesIfcTimeSeriesValueL[1:?] The collection of time series values.X
Inherited definitions from supertypes
Entity inheritance IfcTimeSeries
Attribute inheritance
#AttributeTypeCardinalityDescriptionG
IfcTimeSeries
1NameIfcLabel An unique name for the time series.X
2DescriptionIfcText? A text description of the data that the series represents.X
3StartTimeIfcDateTime The start time of a time series.X
4EndTimeIfcDateTime The end time of a time series.X
5TimeSeriesDataTypeIfcTimeSeriesDataTypeEnum The time series data type.X
6DataOriginIfcDataOriginEnum The origin of a time series data.X
7UserDefinedDataOriginIfcLabel? Value of the data origin if DataOrigin attribute is USERDEFINED.X
8UnitIfcUnit? The unit to be assigned to all values within the time series. Note that mixing units is not allowed. If the value is not given, the global unit for the type of IfcValue, as defined at IfcProject.UnitsInContext is used.X
HasExternalReferenceIfcExternalReferenceRelationship
@RelatedResourceObjects
S[1:?]Reference to an external reference, e.g. library, classification, or document information, that is associated to the IfcTimeSeries.
IFC4 CHANGE New inverse attribute.
X
IfcRegularTimeSeries
9TimeStepIfcTimeMeasure A duration of time intervals between values.X
10ValuesIfcTimeSeriesValueL[1:?] The collection of time series values.X
Formal representations
XML Specification
 <xs:element name="IfcRegularTimeSeries" type="ifc:IfcRegularTimeSeries" substitutionGroup="ifc:IfcTimeSeries" nillable="true"/>
 <xs:complexType name="IfcRegularTimeSeries">
  <xs:complexContent>
   <xs:extension base="ifc:IfcTimeSeries">
    <xs:sequence>
     <xs:element name="Values">
      <xs:complexType>
       <xs:sequence>
        <xs:element ref="ifc:IfcTimeSeriesValue" maxOccurs="unbounded"/>
       </xs:sequence>
       <xs:attribute ref="ifc:itemType" fixed="ifc:IfcTimeSeriesValue"/>
       <xs:attribute ref="ifc:cType" fixed="list"/>
       <xs:attribute ref="ifc:arraySize" use="optional"/>
      </xs:complexType>
     </xs:element>
    </xs:sequence>
    <xs:attribute name="TimeStep" type="ifc:IfcTimeMeasure" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>
EXPRESS Specification
ENTITY IfcRegularTimeSeries
 SUBTYPE OF (IfcTimeSeries);
  TimeStep : IfcTimeMeasure;
  Values : LIST [1:?] OF IfcTimeSeriesValue;
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

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