Reasoning Methods of Unmanned Underwater Vehicle Situation Awareness Based on Ontology and Bayesian Network

Table 3

Classes and attributes in the UUV platform status application ontology.

Concept (parent class)	Concept (subclass)	Concept (underlying subclass)	Data type attribute	Object attribute
Platform_State	Platform_Height_Threat	Platform_Height	hasHeight	is_subclass_of is_a is_instance_of is_attribute_of is_part_of
	Platform_Depth_Threat	Platform_Depth	hasDepth
	Propeller	Left_Propeller	hasState
		Right_Propeller	hasState
	Steering_Engine	Elevator_Feedback	hasState
		Rudder_Feedback	hasState
	Leakage_Condition	Instrument_Cabin	hasValue
		Battery_Cabin	hasValue
	Energy_Allowance	Power_Voltage	hasVoltage
		Instrument_Voltage	hasVoltage