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IfcRegularTimeSeries

Definition from IAI: 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.

EXAMPLES: A smoke detector samples the concentration of particulates in a space at a fixed rate, e.g., every six seconds; a control system measures the outside air temperature every hour; etc.

HISTORY: New entity in IFC 2x2.

EXPRESS specification:

ENTITY IfcRegularTimeSeries
SUBTYPE OF ( IfcTimeSeries);
TimeStep  :  IfcTimeMeasure;
Values  :  LIST [1:?] OF IfcTimeSeriesValue;
END_ENTITY;

Attribute definitions:

TimeStep  :  A duration of time intervals between values.
Values  :  The collection of time series values.

Inheritance graph

ENTITY IfcRegularTimeSeries;
ENTITY IfcTimeSeries;
Name  :  IfcLabel;
Description  :  OPTIONAL IfcText;
StartTime  :  IfcDateTimeSelect;
EndTime  :  IfcDateTimeSelect;
TimeSeriesDataType  :  IfcTimeSeriesDataTypeEnum;
DataOrigin  :  IfcDataOriginEnum;
UserDefinedDataOrigin  :  OPTIONAL IfcLabel;
Unit  :  OPTIONAL IfcUnit;
INVERSE
DocumentedBy  :  SET [0:1] OF IfcTimeSeriesReferenceRelationship FOR ReferencedTimeSeries;
ENTITY IfcRegularTimeSeries;
TimeStep  :  IfcTimeMeasure;
Values  :  LIST [1:?] OF IfcTimeSeriesValue;
END_ENTITY;