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Architectural approach for Autonomous System of Systems Interoperability
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.
2019 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The current technological environment is evolving increasingly fast, and the development of new devices, technologies, and architectures has opened an emergent era where the digital and physical world work together. The implementation and use of systems based on a service-oriented architecture (SOA) in conjunction with the Internet of Things (IoT) and cyberphysical systems (CPS) have been extended during the last decades in numerous scenarios in industry and other domains. However, some of the major barriers to this approach are the lack of interoperability and the amount of engineering effort required for their integration.

 

The research presented in this thesis targets issues related to digitalization and automation. It is framed by the Industry 4.0 paradigm, which promotes the rise of efficiency and sustainability on industrial production. The interoperability between heterogeneous systems and different domains is one of the main challenges of Industry 4.0. The quest for solutions that help to increase interoperability is an important part of this research.

 

This thesis proposes a set of architectural design principles and tools in order to reduce engineering effort by means of finding solutions that enable autonomous integration and increase interoperability without human intervention. The research is focused on the IoT field, taking into account resource-constrained devices, system of systems integration, and data models.

 

A detailed investigation of various interoperability mismatch problems is presented in this thesis. The proposed solution is an adapter system that can aid in the generation of new service consumer interfaces at both compile-time and run-time. The proposed approach requires a new point of view in the service description field that can provide a holistic description of the information required for the generation of consumer interfaces.

In addition, aspects related to interoperability, such as the multiple IoT frameworks in the current market, naming conventions, syntactic modeling and translation, and security, are also partially analyzed.

 

On a separate track, service composition in resource-constrained devices

 is analyzed in terms of latency, using the orchestration provided by the Arrowhead Framework.

Place, publisher, year, edition, pages
Luleå, Sweden: Luleå University of Technology, 2019.
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757
Keywords [en]
Internet of Things (IoT), System of Systems (SoS), interoperability and SOA
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-73743ISBN: 978-91-7790-374-1 (print)ISBN: 978-91-7790-375-8 (electronic)OAI: oai:DiVA.org:ltu-73743DiVA, id: diva2:1306720
Presentation
2019-06-19, Auditorium, Luleå tekniska universitet, Luleå, 13:30 (English)
Opponent
Supervisors
Available from: 2019-04-25 Created: 2019-04-24 Last updated: 2019-06-14Bibliographically approved
List of papers
1. An AAA Solution for Securing Industrial IoT Devices using Next Generation Access Control
Open this publication in new window or tab >>An AAA Solution for Securing Industrial IoT Devices using Next Generation Access Control
Show others...
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Industry 4.0 is advancing the use of Internet of Things (IoT) devices in industrial applications, which enablesefficient device-to-device (D2D) communication. However, these devices are often heterogeneous in nature, i.e. from different manufacturers, use different protocols, etc. and adds requirements such as security, interoperability, etc.To address these requirements, the Service-Oriented Architecture-Based (SOA) Arrowhead Framework was previously proposed using the concept of local clouds. These local clouds provide a set of mandatory and support core systems to enable industrial automation applications. One of these mandatory core systems is an Authentication, Authorisationand Accounting (AAA) system, which is used to authenticate and provide access control to the devices in a local cloud. In an industrial context, with multiple stakeholders, the AAA mustsupport fine-grain access control. For example, in a distributed control loop, a controller should only have read access to its sensor such as a flow meter and write access to its actuator, such as a valve. The controller should not have access to anyother information besides what is needed to implement the desired functionality. In this work, an NGAC-based AAA solution to achieve fine-grain service level access control between IoT devices has been proposed and implemented. The solution is presented using a district heating use case.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018
National Category
Embedded Systems Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Embedded Systems; Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-69313 (URN)10.1109/ICPHYS.2018.8390799 (DOI)2-s2.0-85050142256 (Scopus ID)9781538665312 (ISBN)
Conference
1st IEEE International Conference on Industrial Cyber-Physical Systems, ICPS 2018, ITMO University, Saint Petersburg, Russian Federation, 15-18 May 2018
Projects
Productive 4.0OPTi Optimisation of District Heating Cooling systems, OPTi
Funder
EU, Horizon 2020, 649796
Available from: 2018-06-11 Created: 2018-06-11 Last updated: 2019-05-06Bibliographically approved
2. Interoperability Mismatch Challenges inHeterogeneous SOA-based Systems
Open this publication in new window or tab >>Interoperability Mismatch Challenges inHeterogeneous SOA-based Systems
2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In Industry 4.0, systems with a heterogeneous imple-mentation, different architecture, protocols, and semantics have to be integrated into collaborative environments. The interoper-ability between them has become a major challenge in this new ecosystem of the industry, thereby generating several research questions about how to manage the information exchange and collaboration between systems with so vastly different properties.This paper presents a detailed investigation of the different mismatch problems that can happen in the information ex-change in heterogeneous SOA-based environments where the interoperability is crucial. The proposed solution in this paper is an Adapter System that can aid generatation of new service consumer interfaces at both compile-time and run-time. The interfaces are based on Service Contracts, thereby allowing heterogeneous systems to communicate and interchange services.The proposed approach requires a new point of view in the service description field that can provide a holistic description of the information required for creating both run-time and compile-time consumer interfaces.

Keywords
Interoperability SOA IoT
National Category
Engineering and Technology
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-73448 (URN)
Conference
2019 IEEE International Conference on Industrial Technology (ICIT)
Projects
Productive 4.0
Available from: 2019-04-05 Created: 2019-04-05 Last updated: 2019-09-06
3. Syntactic Translation of Message Payloads Between At Least Partially Equivalent Encodings
Open this publication in new window or tab >>Syntactic Translation of Message Payloads Between At Least Partially Equivalent Encodings
2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Recent years have seen a surge of interest in using IoT systems for an increasingly diverse set of applications, with use cases ranging from medicine to mining. Due to the disparate needs of these applications, vendors are adopting a growing number of messaging protocols, encodings and semantics, which result in poor interoperability unless systems are explicitly designed to work together. Key efforts, such as Industry 4.0, put heavy emphasis on being able to compose arbitrary IoT systems to create emergent applications, which makes mitigating this barrier to interoperability a significant objective. In this paper, we present a theoretical method for translating message payloads in transit between endpoints, complementing previous work on protocol translation. The method involves representing and analyzing encoding syntaxes with the aim of identifying the concrete translations that can be performed without risk of syntactic data loss. While the method does not facilitate translation between all possible encodings or semantics, we believe that it could be extended to enable such translation.

Keywords
translation system, translator, payload translation, formal model
National Category
Computer Sciences
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-73475 (URN)
Conference
2019 IEEE International Conference on Industrial Technology (ICIT), Melbourne, Australia, 13-15 February 2019
Projects
Productive 4.0
Available from: 2019-04-05 Created: 2019-04-05 Last updated: 2019-08-05
4. System of Systems integration via a structurednaming convention
Open this publication in new window or tab >>System of Systems integration via a structurednaming convention
2019 (English)Conference paper, Oral presentation only (Refereed)
Abstract [en]

During the last decade, technology changes and digitization have introduced numerous improvements and challenges in multiple areas of the industry, automation, and design of new architecture. However, the definitions of new naming conventions and identifiers that can be adapted to the new paradigm have not yet been considered.This paper analyzes aspects and characteristics that have to be included in the design of a naming convention consistent with the current Industry 4.0 requirements. As a result, this paper proposes a new naming convention for the Arrowhead Framework following the requisites and characteristics defined in the system of systems (SoS) integration.The proposed Arrowhead naming convention represents a renovated vision of the identification of services, systems, devices, and networks. A powerful tool in the quest of interoperability, security, service discovery, topology, and dynamic orchestration, as well as, a structured manner of defining meaningfully identifiers as help for developers

National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:ltu:diva-73916 (URN)
Conference
EEE International Conference on Industrial Informatics, INDIN, 2019.
Available from: 2019-05-13 Created: 2019-05-13 Last updated: 2019-09-06

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