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exported equivalent COPI_0000338
Relay
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000338
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A relay is an electrical switching device that bears a signal relay function, realized by passing on information or signals from one circuit to control operations in another circuit.
PT-BR
Um relé é um dispositivo de comutação elétrica que possui uma função de relé de sinal, realizada ao transmitir informações ou sinais de um circuito para controlar operações em outro circuito.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every Relay is an ElectricalSwitchingDevice that bearerOf some SignalRelayFunction
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (Relay(x) ↔ MaterialArtifact(x) ∧ ∃f (SignalRelayFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: SignalRelayFunction]∀f (SignalRelayFunction(f) → ∀p (realizedIn(f,p) → SignalRelayProcess(p)) ∧ ∃p (SignalRelayProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((Relay(x) ∧ SignalRelayFunction(f) ∧ bearerOf(x,f)) → ∃m (ElectricalSignal(m) ∧ participatesIn(m,f)) ∧ ∃e (ElectricalSignal(e) ∧ participatesIn(e,f)) ∧ processType(f,ElectricalPowerConversion)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: Relay <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0-104-g4d16eff" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-07-13"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :SignalRelayFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :SignalRelayProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :SignalRelayProcess ] ; rdfs:label "signal relay function"@en ; rdfs:label "função de retransmissão de sinal"@pt-br . ### Process type :SignalRelayProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "signal relay process"@en ; rdfs:label "processo de retransmissão de sinal"@pt-br . :SignalRelayProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :ElectricalSignal ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :ElectricalSignal ] . ### Equipment universal: Relay :Relay rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( iof-core:MaterialArtifact [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :SignalRelayFunction ] ) ] ; rdfs:label "relay"@en ; rdfs:label "relé"@pt-br ; iof-av:naturalLanguageDefinition "A relay is an electrical switching device that bears a signal relay function, realized by passing on information or signals from one circuit to control operations in another circuit."@en ; skos:definition "A relay is an electrical switching device that bears a signal relay function, realized by passing on information or signals from one circuit to control operations in another circuit."@en ; iof-av:naturalLanguageDefinition "Um relé é um dispositivo de comutação elétrica que possui uma função de relé de sinal, realizada ao transmitir informações ou sinais de um circuito para controlar operações em outro circuito."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every Relay is an ElectricalSwitchingDevice that bearerOf some SignalRelayFunction"@en ; iof-av:firstOrderLogicAxiom "∀x(Relay(x) ↔ (ElectricalSwitchingDevice(x) ∧ ∃f(SignalRelayFunction(f) ∧ bearerOf(x,f))))"@en ; # Disjointness: Relay and Transformer [] rdf:type owl:AllDisjointClasses ; owl:members ( :Relay :Transformer ) . # Disjointness: Relay and Motor [] rdf:type owl:AllDisjointClasses ; owl:members ( :Relay :Motor ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
SignalRelayFunction ⊑ DesignedFunction
Realized in
SignalRelayProcess ⊑ PlannedProcess
The identity-giving function is to relay (pass on) signals or information from one circuit to another, potentially in modified form. This encompasses both switching functions (opening/closing circuits) and signal processing/transmission functions. This is distinct from simple switching (which only opens/closes) or pure signal transmission (which doesn't involve circuit control).
2 Genus DeterminationDeterminação do Gênero
MaterialArtifactbfo:Object (BFO_0000030)
The parent_candidates suggest 'SWITCHING DEVICE' from ISO15926, which maps to ElectricalSwitchingDevice as the most specific appropriate superclass. While 'electrical equipment class' from CFIHOS is too broad, the concept is clearly a switching device with electrical functionality. ElectricalSwitchingDevice is not in the enriched list but represents the correct level of specificity - more specific than just 'Assembly' but broader than specific relay types.
3 Differentia SpecificaDiferença Específica
∃bearerOf.SignalRelayFunction

A relay is distinguished from other switching devices by its function to pass on information or signals from one circuit to control operations in another circuit.

The differentia focuses on the signal relay function that distinguishes relays from other switching devices. While switching devices generally control electrical circuits, relays specifically relay information/signals between circuits, often with isolation, amplification, or logic processing.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These are the minimal essential parts that enable the signal relay function - an input element to receive control signals and switching elements to control output circuits. Specific implementations may vary (electromagnetic vs solid-state) but these functional components are universal.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'ElectricalSignal', 'count': 1, 'constraints': 'control signal'}
OutputsSaídas
{'type': 'ElectricalSignal', 'count': 1, 'constraints': 'switched or modified signal'}
TransformationTransformação
signal processing and electrical isolation
Relays take an electrical control signal as input and produce a switched or modified electrical output, providing isolation and potentially amplification or logic processing between input and output circuits.
Disjoint WithDisjunto com
Transformer Motor
C4: Motor. C?: Transformer [kind_ambiguous]. Relays have incompatible process signatures with transformers (which transform voltage/current levels), motors (which convert electrical to mechanical energy), and generators (which convert mechanical to electrical energy)
MetadataMetadados
COPI IDCOPI IDCOPI_0000338
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000338
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-16
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroMaterialArtifact
Root classClasse raizMaterialArtifact
Axiom modeModoequivalent
FunctionFunçãoSignalRelayFunction
ProcessProcessoSignalRelayProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 RELAY
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
CFIHOS relay
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
ISA5_1 relay
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.