Example of use for the SAREF extension for environment
A relation between an object and the physical space in which it is located.
is contained in
The relation between something and the point, or other geometrical thing in space, where it is. For example, the realtionship between a radio tower and a Point with a given lat and long. Or a relationship between a park and its outline as a closed arc of points, or a road and its location as a arc (a sequence of points). Clearly in practice there will be limit to the accuracy of any such statement, but one would expect an accuracy appropriate for the size of the object and uses such as mapping .
location
A relation between a measurement and the unit of measure in which the measurement value is expressed.
is measured in
A relationship defining the value of a certain property, e.g., energy or power
has value
Anything with spatial extent, i.e. size, shape, or position. e.g. people, places, bowling balls, as well as abstract areas like cubes.
Spatial thing
The unit of measure is a standard for measurement of a quantity, such as a Property. For example, Power is a property and Watt is a unit of power that represents a definite predetermined power: when we say 10 Watt, we actually mean 10 times the definite predetermined power called "watt". Our definition is based on the definition of unit of measure in the Ontology of units of Measure (OM). We propose here a list of some units of measure that are relevant for the purpose of the Smart Appliances ontology, but this list can be extended.
Unit of measure
Bluettoth v2.1
FequencyMeasurementTESS005-UCM
Location of photometer TESS stars5
MQTT-Broker
Power profile of photometer TESS stars5
Power of photometer TESS stars5
RS232 v24
TESS photometer stars5
TransmissionPeriodTESS005-UCM
Wi-Fi v802.11ah
mgPerarcsec2
Measurement 2016-10-05T08:15:30 TESS005-UCM
Measurement 2016-10-05T08:15:40 TESS005-UCM