WO2023080261A1 - Procédé de liaison entre des plateformes de norme onem2m et ngsi-ld à l'aide d'une ontologie sémantique - Google Patents

Procédé de liaison entre des plateformes de norme onem2m et ngsi-ld à l'aide d'une ontologie sémantique Download PDF

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Publication number
WO2023080261A1
WO2023080261A1 PCT/KR2021/015645 KR2021015645W WO2023080261A1 WO 2023080261 A1 WO2023080261 A1 WO 2023080261A1 KR 2021015645 W KR2021015645 W KR 2021015645W WO 2023080261 A1 WO2023080261 A1 WO 2023080261A1
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WIPO (PCT)
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resources
platform
semantic
ngsi
onem2m
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PCT/KR2021/015645
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English (en)
Korean (ko)
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정승명
최성찬
박종홍
정성욱
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한국전자기술연구원
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Publication of WO2023080261A1 publication Critical patent/WO2023080261A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
    • G06F16/36—Creation of semantic tools, e.g. ontology or thesauri
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present invention relates to a method for linking standard platforms, and more particularly, to a method for linking data collected on a one machine to machine (oneM2M) platform to a Next Generation Service Interface-Linked Data (NGSI-LD) platform.
  • oneM2M one machine to machine
  • NGSI-LD Next Generation Service Interface-Linked Data
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide an interworking method between oneM2M and NGSI-LD standard platforms by utilizing semantic resources defined in the oneM2M standard.
  • a data interworking method provides a semantic proxy to entities of a Next Generation Service Interface-Linked Data (NGSI-LD) platform in a one Machine to Machine (oneM2M) platform.
  • Searching for resources to be linked Acquiring, by the semantic proxy, resources found in the oneM2M platform; obtaining, by a semantic proxy, semantic resources included under resources found in the oneM2M platform; Acquiring, by the semantic proxy, mapping-rules necessary for linking resources to entities of the NGSI-LD platform from the obtained semantic resources; Creating entity instances for linking resources to entities of the NGSI-LD platform using the obtained mapping-rules by the semantic proxy;
  • the semantic proxy creates the created entity instances in the entities of the NGSI-LD platform.
  • a data interworking method includes subscribing, by a semantic proxy, to updates of resources in a oneM2M platform: receiving, by the semantic proxy, updates of resources from the oneM2M platform; creating, by the semantic proxy, updated entity instances according to notification contents by referring to the mapping-rule; Updating, by the semantic proxy, entities of the NGSI-LD platform with created entity instances; may further include.
  • a data interworking method includes: searching, by a semantic proxy, sub-resources of resources found in a oneM2M platform; Acquiring, by the semantic proxy, data of sub-resources retrieved from the oneM2M platform; obtaining, by a semantic proxy, semantic resources included under sub-resources found in the oneM2M platform; and obtaining, by the semantic proxy, mapping-rules necessary for linking data of sub-resources to entities of the NGSI-LD platform from the acquired semantic resources; creating entity instances for linking data of sub-resources to entities of the NGSI-LD platform by using the acquired mapping-rules by the semantic proxy; The method may further include generating, by the semantic proxy, created entity instances in the NGSI-LD platform.
  • Data of sub-resources may be latest instance resources of sub-resources.
  • a data interworking method includes subscribing, by a semantic proxy, to creation of latest instance resources of sub-resources in a oneM2M platform: the semantic proxy registers creation of latest instance resources of sub-resources from the oneM2M platform. receiving notification; creating, by the semantic proxy, updated entity instances according to notification contents by referring to the mapping-rule; Updating, by the semantic proxy, entities of the NGSI-LD platform with created entity instances; may further include.
  • a data linkage method includes: searching for a resource to be linked to an entity of an NGSI-LD platform in a oneM2M platform by an annotation tool; Creating mapping-rules necessary for the annotation tool to link the searched resources to entities of the NGSI-LD platform; generating, by the annotation tool, a semantic resource under a resource in the oneM2M platform; The annotation tool may further include storing the written mapping-rule in the semantic resource created in the oneM2M platform.
  • the step of creating a mapping-rule is performed through a template in which items necessary for mapping are entered, and the template may be stored and loaded and used.
  • the data interworking method may further include, by the oneM2M platform, storing RDF triple information for a mapping-rule in a triple store.
  • the search step may include requesting, by the semantic proxy, semantic discovery for searching a semantic resource in which a mapping-rule is stored in the oneM2M platform; oneM2M platform, transmitting a semantic query included in semantic discovery in the triple store to search for semantic resources in which mapping-rules are stored; Returning, by the oneM2M platform, a list of resources that include the semantic resources searched for in the semantic proxy below.
  • the data interworking server includes a communication unit communicating with the oneM2M platform and the NGSI-LD platform;
  • the oneM2M platform searches for resources to be linked with the entities of the NGSI-LD platform, acquires the resources found in the oneM2M platform, acquires semantic resources included under the resources found in the oneM2M platform, and obtains resources from the obtained semantic resources.
  • Acquires mapping-rules necessary for linking the NGSI-LD platform to entities creates entity instances for linking resources to entities of the NGSI-LD platform using the acquired mapping-rules, and converts the created entity instances to NGSI -Processor to create entities of the LD platform;
  • a semantic proxy acquires semantic resources included under interworking resources of a oneM2M platform; Acquiring, by the semantic proxy, mapping-rules necessary for linking resources to entities of the NGSI-LD platform from the acquired semantic resources; Creating entity instances for linking resources to entities of the NGSI-LD platform using the obtained mapping-rules by the semantic proxy; The semantic proxy creates the created entity instances in the entities of the NGSI-LD platform.
  • the data interworking server includes a communication unit communicating with the oneM2M platform and the NGSI-LD platform; Acquire semantic resources included under interworking resources of the oneM2M platform, acquire mapping-rules necessary for linking resources to entities of the NGSI-LD platform from the acquired semantic resources, and use the acquired mapping-rules to obtain resources
  • a processor that creates entity instances for linking entities of the NGSI-LD platform to entities of the NGSI-LD platform and creates the created entity instances to entities of the NGSI-LD platform.
  • interworking between oneM2M to NGSI-LD standard platforms is possible by utilizing the semantic resources already defined in the oneM2M standard, so that a new type of Interworking between oneM2M to NGSI-LD standard platforms is possible within the scope of the oneM2M standard without defining resources.
  • FIG. 1 is a diagram provided to explain a process of creating and storing a oneM2M to NGSI-LD mapping-rule in a semantic resource according to an embodiment of the present invention
  • FIG. 2 is a diagram provided to explain a method of creating a mapping-rule in the annotation tool 300;
  • 3 to 8 are diagrams provided to explain a method of generating resources in the annotation tool 300;
  • 9 and 10 are views provided to explain a oneM2M to NGSI-LD interworking method using semantic resources according to another embodiment of the present invention.
  • FIG. 11 is a block diagram of a oneM2M platform according to another embodiment of the present invention.
  • FIG. 12 is a block diagram of a user terminal in which an annotation tool is executed/driven according to another embodiment of the present invention.
  • FIG. 13 is a block diagram of a semantic proxy according to another embodiment of the present invention.
  • a method for interworking between oneM2M (one Machine to machine) to NGSI-LD (Next Generation Service Interface - Linked Data) standard platforms using semantic ontology is proposed.
  • a predefined semantic resource is utilized without defining a new type of resource within the scope of the oneM2M standard.
  • a oneM2M to NGSI-LD mapping-rule is created and stored in a ⁇ semanticDescriptor> resource, and interworking is set by searching the ⁇ semanticDescriptor> resource.
  • 1 is a diagram provided to explain a process of creating and storing oneM2M to NGSI-LD mapping-rule in a semantic resource according to an embodiment of the present invention.
  • the annotation tool 300 searches for resources of the oneM2M platform 200 to be interworked with entities of the NGSI-LD platform 500 in the oneM2M platform 200 (S1).
  • the annotation tool 300 refers to a tool for creating and storing oneM2M to NGSI-LD mapping-rules in a ⁇ semanticDescriptor> resource or a user terminal in which the tool is executed/driven.
  • the search in step S1 includes discovery for finding a resource and a procedure for obtaining resource information.
  • Resource search can be performed by designating a resource ID, and the resource ID can be designated by a user.
  • the annotation tool 300 creates a mapping-rule necessary to link the searched resource to an entity of the NGSI-LD platform 500 (S2). As shown in FIG. 2 , mapping-rule preparation may be performed through a template in which items necessary for mapping provided by the annotation tool 300 are entered.
  • Templates can be saved and loaded to be used to write mapping-rules for other resources, which provides convenience in creating mapping-rules for various resources requiring repetitive writing.
  • the annotation tool 300 creates a semantic resource under the resource of the oneM2M platform 200 found in step S1 and stores the mapping-rule created in step S2 (S3).
  • 3 to 6 illustrate a process of generating a ⁇ smd_spot_001> resource, which is a semantic resource, under a ⁇ Spot_001> resource by using a template in the annotation tool 300.
  • FIG. 7 and 8 show a process of creating a ⁇ semanticDescriptor> resource of ⁇ CIN_01> resource, which is the latest instance resource of ⁇ CIN_01> resource, which is a sub-resource of ⁇ Spot_001> resource.
  • the oneM2M platform 200 generates RDF (Resource Description Framework) triple information for the mapping-rule stored in the semantic resource created in step S3 and stores it in the triple store 100 (S4).
  • RDF Resource Description Framework
  • a mapping-rule for a resource to be linked to an entity of the NGSI-LD platform 500 is stored as a semantic resource under the resource.
  • the semantic proxy 400 first searches for semantic resources in which mapping-rules are stored necessary for linking resources of the oneM2M platform 200 to entities of the NGSI-LD platform 500 request for semantic discovery to the oneM2M platform 200 (S11).
  • the semantic proxy 400 is an interworking server for linking the resources of the oneM2M platform 200 to entities of the NGSI-LD platform 500, and may be included in the oneM2M platform 200 or the NGSI-LD platform 500, or a separate It can also be configured as a server.
  • the oneM2M platform 200 transmits the semantic query (SPARQL query) included in the received semantic discovery to the triple store 100 to search for semantic resources in which mapping-rules are stored (S12).
  • semantic query (SPARQL query) included in the received semantic discovery
  • triple store 100 to search for semantic resources in which mapping-rules are stored (S12).
  • the oneM2M platform 200 returns to the semantic proxy 400 a list of resources including the semantic resource found in step S12 below (S13).
  • the semantic proxy 400 requests the oneM2M platform 200 for discovery to search for sub-resources of the resources included in the list returned in step S13 (S14), and the oneM2M platform 200 retrieves the list of sub-resources is returned to the semantic proxy 400 (S15).
  • the semantic proxy 400 acquires the latest instance resources of the resources included in the list returned in step S13 and sub-resources included in the list returned in step S15 from the oneM2M platform 200 (S16).
  • the semantic proxy 400 transfers semantic resources included below the resources included in the list returned in step S13 and semantic resources included below the list included in the list returned in step S15 to the oneM2M platform (200 ) from (S17).
  • the semantic proxy 400 obtains the latest mapping-rules and sub-resources necessary for linking the resources to the entities of the NGSI-LD platform 500 from the semantic resources acquired in step S17. Mapping-rules necessary for linking instance resources to entities of the NGSI-LD platform 500 are obtained (S18).
  • the semantic proxy 400 transfers the latest instance resources of entity instances and sub-resources for linking resources to entities of the NGSI-LD platform 500 using the mapping-rules obtained in step S18 to the NGSI-LD platform ( 500) create entity instances to interwork with the entities (S19).
  • the semantic proxy 400 creates entity instances created in step S19 to entities of the NGSI-LD platform 500 (S20).
  • semantic proxy 400 subscribes to updates of resources and creation of latest instance resources of sub-resources in the oneM2M platform 200 (S21).
  • the semantic proxy 400 refers to the mapping-rule and creates updated entity instances according to the content of the notification. (S23).
  • the semantic proxy 400 updates the entities of the NGSI-LD platform 500 to the entity instances created in step S23 (S24).
  • FIG. 11 is a block diagram of oneM2M platform 200.
  • the oneM2M platform 200 can be implemented as a server system including a communication unit 210, a processor 220 and a storage unit 230.
  • the communication unit 210 is a communication unit for communicating with the triple store 100 , the annotation tool 300 and the semantic proxy 400 .
  • the processor 220 includes at least one Application Entity (AE) and a Common Service Entity (CSE). AEs may not be included.
  • the storage unit 230 provides a necessary storage space for the processor 220 to function and operate.
  • the processor 220 performs a procedure performed by the oneM2M platform 200 among the processes shown in FIG. 1 to search for resources and generate semantic resources according to the request of the annotation tool 300. And mapping-rule storage is performed, and RDF triple information for the mapping-rule is stored in the triple store 100.
  • the processor 220 performs a procedure performed by the oneM2M platform 200 among the processes shown in FIGS. 9 and 10 to perform resource search and subscription/notification according to the request of the semantic proxy 400.
  • the user terminal includes a communication unit 310, an output unit 320, a processor 330, an input unit 340, and a storage unit 350.
  • the communication unit 310 is a communication means for communicating with the oneM2M platform 200, and the processor 330 executes/drives the annotation tool 300. Accordingly, the processor 330 performs the procedures performed by the annotation tool 300 among the procedures shown in FIG. 1 to search resources, create mapping-rules, create semantic resources, and use mapping-rules created by creating semantic resources. Save.
  • the output unit 320 is a display on which the execution screen of the annotation tool 300 is displayed, the input unit 340 receives user manipulation/settings and transmits them to the processor 330, and the storage unit 350 is the processor 330 ) to provide the necessary storage space.
  • the semantic proxy 400 can be implemented as a server system including a communication unit 410 , a processor 420 and a storage unit 430 .
  • the communication unit 410 is a communication means for communicating with the oneM2M platform 200 and the LGSI-LD platform 500.
  • the processor 220 performs a process performed by the semantic proxy 400 among the processes shown in FIGS. 9 and 10 to perform a data linkage process.
  • the storage unit 430 provides a necessary storage space for the processor 420 to function and operate.
  • the technical spirit of the present invention can also be applied to a computer-readable recording medium containing a computer program for performing the functions of the apparatus and method according to the present embodiment.
  • technical ideas according to various embodiments of the present invention may be implemented in the form of computer readable codes recorded on a computer readable recording medium.
  • the computer-readable recording medium may be any data storage device that can be read by a computer and store data.
  • the computer-readable recording medium may be ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical disk, hard disk drive, and the like.
  • computer readable codes or programs stored on a computer readable recording medium may be transmitted through a network connected between computers.

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Abstract

L'invention concerne un procédé pour une liaison entre des plateformes de norme oneM2M et NGSI-LD à l'aide d'une ontologie sémantique. L'invention concerne le procédé de liaison de données, selon un mode de réalisation de la présente invention, par le biais duquel un proxy sémantique : récupère, à partir d'une plateforme oneM2M, des ressources à lier à des entités d'une plateforme NGSI-LD ; acquiert les ressources trouvées à partir de la plateforme oneM2M ; acquiert des ressources sémantiques comprises dans les ressources trouvées à partir de la plateforme oneM2M ; acquiert, à partir des ressources sémantiques acquises, des règles de mappage nécessaires pour lier des ressources aux entités de la plateforme NGSI-LD ; crée des instances d'entités pour lier des ressources aux entités de la plateforme NGSI-LD à l'aide des règles de mappage acquises ; et génère les instances d'entités créées dans les entités de la plateforme NGSI-LD. En conséquence, une liaison entre des plateformes de norme oneM2M et NGSI-LD est possible dans le champ d'application d'une norme oneM2M.
PCT/KR2021/015645 2021-11-02 2021-11-02 Procédé de liaison entre des plateformes de norme onem2m et ngsi-ld à l'aide d'une ontologie sémantique WO2023080261A1 (fr)

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KR10-2021-0148432 2021-11-02
KR1020210148432A KR102400201B1 (ko) 2021-11-02 2021-11-02 시맨틱 온톨로지를 활용한 oneM2M to NGSI-LD 표준 플랫폼 간 연동 방법

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180051583A (ko) * 2015-10-07 2018-05-16 삼성전자주식회사 RESTful 서버와 oneM2M 시스템 간의 자원 매핑 방법
US20180205801A1 (en) * 2015-07-06 2018-07-19 NEC Laboratories Europe GmbH Apparatus and method for connecting at least two systems by converting data
KR20190065372A (ko) * 2016-10-07 2019-06-11 콘비다 와이어리스, 엘엘씨 일반적 상호연동 및 확장성을 위한 서비스 계층 리소스 관리
KR20200124267A (ko) * 2018-02-27 2020-11-02 콘비다 와이어리스, 엘엘씨 분산형 시맨틱 데이터를 통한 시맨틱 동작들 및 추론 지원
KR20210043865A (ko) * 2019-10-14 2021-04-22 한국전자기술연구원 Ngsi-ld api 래핑 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180205801A1 (en) * 2015-07-06 2018-07-19 NEC Laboratories Europe GmbH Apparatus and method for connecting at least two systems by converting data
KR20180051583A (ko) * 2015-10-07 2018-05-16 삼성전자주식회사 RESTful 서버와 oneM2M 시스템 간의 자원 매핑 방법
KR20190065372A (ko) * 2016-10-07 2019-06-11 콘비다 와이어리스, 엘엘씨 일반적 상호연동 및 확장성을 위한 서비스 계층 리소스 관리
KR20200124267A (ko) * 2018-02-27 2020-11-02 콘비다 와이어리스, 엘엘씨 분산형 시맨틱 데이터를 통한 시맨틱 동작들 및 추론 지원
KR20210043865A (ko) * 2019-10-14 2021-04-22 한국전자기술연구원 Ngsi-ld api 래핑 방법

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