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Publications (10 of 241) Show all publications
Garcia Represa, J. & Delsing, J. (2019). Autonomous Production Workstation Operation, Reconfiguration and Synchronization. In: : . Paper presented at 25th International Conference on Production Research, Chicago, August 9-15, 2019..
Open this publication in new window or tab >>Autonomous Production Workstation Operation, Reconfiguration and Synchronization
2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The decoupling of production line’s workstations and its equipment from the higher layers in an automation architecture has thepotential to provide the following benefits: 1. Dynamic workstation reconfiguration; 2. Autonomous synchronization of workstationequipment; 3. Autonomous workstation operation.Each of these benefits will improve the automation flexibility at each workstation and for the whole production line.Introducing IoT equipment into workstations and making use of Service Oriented Architecture (SOA) fundamentals such as lookup,late binding and loose coupling are shown here to provide the above benefits. In addition, the cost of such an implementationand deployment seems to be significantly less than the comparable cost for legacy technology.An implementation, using the SOA approach on a workstation, at the Volvo Trucks production facility in Gothenburg was madepossible thanks to the Arrowhead framework, which has been shown to provide all three listed improvements.The analysis of the above-mentioned demonstration clearly shows how the workstation reconfiguration is made simple usingthe arrowhead ServiceRegistry system. Autonomous synchronization is achieved through the look-up and late binding capabilitiesprovided by the arrowhead Orchestration system in cooperation with the ServiceRegistry system. Finally, autonomous workstationoperation is provided through the support of the arrowhead Workflow Manager and Workflow Executor systems.All these benefits were achieved at a significantly reduced cost compared to comparable legacy implementation.

Keywords
Autonomous production workstation, Production Workstation reconfiguration, Production Workstation synchronisation, Arrowhead framework, Smart factory, Intelligent manufacturing
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics; Electronic systems
Identifiers
urn:nbn:se:ltu:diva-75613 (URN)
Conference
25th International Conference on Production Research, Chicago, August 9-15, 2019.
Projects
Far-EdgeProductive 4.0
Available from: 2019-08-21 Created: 2019-08-21 Last updated: 2019-09-06
Nilsson, J., Sandin, F. & Delsing, J. (2019). Interoperability automation considered as machine learning tasks. In: : . Paper presented at 2nd Productive4.0 Consortium Conference, Budapest, March 12-14, 2019.
Open this publication in new window or tab >>Interoperability automation considered as machine learning tasks
2019 (English)Conference paper, Poster (with or without abstract) (Other academic)
Keywords
Interoperability, machine learning, optimization, translation, semantics
National Category
Other Computer and Information Science
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-73578 (URN)
Conference
2nd Productive4.0 Consortium Conference, Budapest, March 12-14, 2019
Funder
EU, Horizon 2020, 737459
Available from: 2019-04-11 Created: 2019-04-11 Last updated: 2019-09-06
Acharya, S., Chouhan, S. S. & Delsing, J. (2019). Scalability of Copper-Interconnects down to 3μm on Printed Boards by Laser-assisted-subtractive process. In: Proceedings of: 2019 IMAPS Nordic Conference on Microelectronics Packaging (NordPac): . Paper presented at 2019 IMAPS Nordic Conference on Microelectronics Packaging (NordPac), 11-13 June 2019, Copenhagen, Denmark (pp. 206-209). IEEE
Open this publication in new window or tab >>Scalability of Copper-Interconnects down to 3μm on Printed Boards by Laser-assisted-subtractive process
2019 (English)In: Proceedings of: 2019 IMAPS Nordic Conference on Microelectronics Packaging (NordPac), IEEE, 2019, p. 206-209Conference paper, Published paper (Refereed)
Abstract [en]

As per the latest roadmap of iNEMI, the global electronics market is emphasizing to identify disruptive technologies that can contribute towards denser, robust and tighter integration on the board level. Therefore, reduction in packaging factor of printed board can accommodate greater number of ICs to support miniaturization. This paper has shown an experimental method to pattern the metallic layer on a Printed circuit Board (PCB) to the smallest feature size. To investigate this, a commercially available FR-4 PCB with photosensitive material coat and a Copper (Cu) layer on it, is used. A reverse-mode Laser assisted writing is implemented to pattern the desired copper tracks. Soon after, a well-controlled development and chemical etching of the Laser-activated regions are done using Sodium Hydroxide solution followed by an aqueous solution of Sodium Persulfate. Current PCB interconnects used by the industries are of the order (~20 μm). Whereas the present work is a contribution towards achieving Copper interconnects with feature size 3.0μm. This miniaturization corresponds to 70% reduction in the feature size from 20 μm to 3μm. The natural adhesion of the Cu layer has remained intact even after the etching, shows the efficiency of the method adopted. Also, variation in the parameters such as etching time, etchant solution concentrations, temaperature, gain and exposure time of Laser beam and their corresponding effects are discussed. Other highlights of this subtractive method includes its cost-efficiency, lesser production time and repeatability.

Place, publisher, year, edition, pages
IEEE, 2019
Keywords
Subtractive process, FR-4 PCB, Laser assisted writing, etching, copper tracks, reverse-mode
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electronic systems
Identifiers
urn:nbn:se:ltu:diva-75980 (URN)10.23919/NORDPAC.2019.8760349 (DOI)
Conference
2019 IMAPS Nordic Conference on Microelectronics Packaging (NordPac), 11-13 June 2019, Copenhagen, Denmark
Available from: 2019-09-12 Created: 2019-09-12 Last updated: 2019-09-12Bibliographically approved
Derhamy, H., Eliasson, J. & Delsing, J. (2019). System of System Composition based on Decentralized Service Oriented Architecture. IEEE Systems Journal
Open this publication in new window or tab >>System of System Composition based on Decentralized Service Oriented Architecture
2019 (English)In: IEEE Systems Journal, ISSN 1932-8184, E-ISSN 1937-9234Article in journal (Refereed) Epub ahead of print
Abstract [en]

As society has progressed through periods of evolution and revolution, technology has played a key role as an enabler. In the same manner, mechanical machines of the 1800s drove the industrial revolution, now digitalized machines are driving another industrial revolution. Manufacturers are increasing the digital footprint on the factory floor. It is challenging to harness the vast amounts of data generated, stored, analyzed, archived, and returned. Data centralization has several well-known challenges, such as collection bottlenecks, secure retrieval, single point of failure, and data scheme fragility as data heterogeneity increases. This paper proposes a method of information distribution based on the principle of data at its source. It proposes that contextual data be used at runtime through the creation of dynamic queries that build compositions of different systems. Such system of systems (SoS) compositions handle the flow of data across its life cycle and present it as information to the initiating system. The proposal starts by creating a graph model of the Arrowhead framework. Then, building on the graph model, the query-based approach for specifying, validating, and forming the SoS is proposed. The proposed graph model allows for unambiguous description of systems and their interrelations, including security relations. The proposed composer operates on the edge computing hardware and gives the production floor the ability to extract information without impacting the overall operation of the factory.

Place, publisher, year, edition, pages
IEEE, 2019
Keywords
Arrowhead framework (AF), edge computing, graph theory, Hypermedia as the engine of application state (HATEOAS), industrial Internet of Things (IIoT), information centric networking, RAMI4.0, RESTful, service-oriented architecture, system of systems (SoS), systems theory
National Category
Computer Systems Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-68462 (URN)10.1109/JSYST.2019.2894649 (DOI)
Available from: 2018-04-23 Created: 2018-04-23 Last updated: 2019-03-01
Kolluru, K. K., Paniagua, C., van Deventer, J., Eliasson, J., Delsing, J. & DeLong, R. J. (2018). An AAA Solution for Securing Industrial IoT Devices using Next Generation Access Control. In: : . Paper presented at 1st IEEE International Conference on Industrial Cyber-Physical Systems, ICPS 2018, ITMO University, Saint Petersburg, Russian Federation, 15-18 May 2018 (pp. 737-742). Institute of Electrical and Electronics Engineers (IEEE)
Open this publication in new window or tab >>An AAA Solution for Securing Industrial IoT Devices using Next Generation Access Control
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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
Strobl, S., Hofbauer, D., Schmittner, C., Maksuti, S., Tauber, M. G. & Delsing, J. (2018). Connected cars: Threats, vulnerabilities and their impact. In: : . Paper presented at 1st IEEE International Conference on Industrial Cyber-Physical Systems, ICPS 2018, ITMO University Saint Petersburg, Russian Federation, 15-18 May 2018 (pp. 375-380). Institute of Electrical and Electronics Engineers (IEEE)
Open this publication in new window or tab >>Connected cars: Threats, vulnerabilities and their impact
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2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The growing demand for interoperability between system components within a connected car has led to new security challenges in automotive development. The existing components, based on established technology, are often being combined to form such a connected car. For such established technologies, individual, often sector specific threat and vulnerability catalogs exist. The aim of this paper is to identify blocks of established technologies in a connected car and to consolidate the corresponding threat and vulnerability catalogs relevant for the individual constituent components. These findings are used to estimate the impact on specific system components and subsystems to identify the most crucial components and threats.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-70251 (URN)10.1109/ICPHYS.2018.8387687 (DOI)2-s2.0-85050105333 (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
Available from: 2018-08-07 Created: 2018-08-07 Last updated: 2018-08-07Bibliographically approved
Bicaku, A., Maksuti, S., Hegedűs, C., Tauber, M. G., Delsing, J. & Eliasson, J. (2018). Interacting with the arrowhead local cloud: On-boarding procedure. In: : . Paper presented at 1st IEEE International Conference on Industrial Cyber-Physical Systems, ICPS 2018, ITMO University Saint Petersburg, Russian Federation, 15-18 May 2018 (pp. 743-748). Institute of Electrical and Electronics Engineers (IEEE)
Open this publication in new window or tab >>Interacting with the arrowhead local cloud: On-boarding procedure
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2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Industrial automation systems are advancing rapidly and a wide range of standards, communication protocols and platforms supporting the integration of devices are introduced. It is therefore necessary to design and build appropriate tools and frameworks that allow the integration of devices with multiple systems and services. In this work we present the Arrow-head Framework, used to enable collaborative IoT automation and introduce two support core systems, SystemRegistry and DeviceRegistry, which are needed to create a chain of trust from a hardware device to a software system and its associated services. Furthermore, we propose an on-boarding procedure of a new device interacting with the Arrowhead local cloud. This ensures that only valid and authorized devices can host software systems within an Arrowhead local cloud.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-70253 (URN)10.1109/ICPHYS.2018.8390800 (DOI)2-s2.0-85050137809 (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
Available from: 2018-08-07 Created: 2018-08-07 Last updated: 2018-08-07Bibliographically approved
Häggström, F. & Delsing, J. (2018). IoT Energy Storage: A Forecast. Energy Harvesting and Systems, 5(3/4)
Open this publication in new window or tab >>IoT Energy Storage: A Forecast
2018 (English)In: Energy Harvesting and Systems, ISSN 2329-8766, Vol. 5, no 3/4Article in journal (Refereed) Published
Abstract [en]

Exponential growth in computing, wireless communication, and energy storage efficiency is key to allowing smaller and scalable IoT solutions. These advancements have made it possible to power devices from energy harvesters (EH) and explore other energy storage solutions that can increase the lifetime and robustness of IoT devices. We summarize current trends and limits for the current paradigm as the basis of our forecast. The trend shows that conventional ceramic capacitors are sufficient for energy storage for today’s EH powered wireless IoT devices and that in the future, IoT devices can either perform more advanced tasks with their current volume or be shrunk in size.

Place, publisher, year, edition, pages
De Gruyter Open, 2018
Keywords
energy harvesting, energy storage, IoT, trends, industry, size, wireless transceiver
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-71534 (URN)10.1515/ehs-2018-0010 (DOI)
Available from: 2018-11-10 Created: 2018-11-10 Last updated: 2019-09-13Bibliographically approved
Bicaku, A., Schmittner, C., Tauber, M. G. & Delsing, J. (2018). Monitoring Industry 4.0 applications for security and safety standard compliance. In: : . Paper presented at 1st IEEE International Conference on Industrial Cyber-Physical Systems, ICPS 2018, ITMO University Saint Petersburg, Russian Federation, 15-18 May 2018 (pp. 749-754). Institute of Electrical and Electronics Engineers (IEEE)
Open this publication in new window or tab >>Monitoring Industry 4.0 applications for security and safety standard compliance
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In Industry 4.0 independent entities shall inter-operate to allow flexible and customized production. To assure the parties that individual components are secured to inter-operate, we investigate automated standard compliance. The standard compliance is defined based on given sets of security and safety requirements from which are derived measurable indicator points. Those reflect configurations of systems recommended by security, safety or legally relevant standards and guidelines, which help to demonstrate the state of compliance. We propose in this paper an initial approach to automate such assessment when components are inter-operating with each other by using a monitoring and standard compliance verification framework. This will assure the parties that services or devices within their organizations operate in a secure and standard compliant way, without compromising the underlying infrastructure.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-70247 (URN)10.1109/ICPHYS.2018.8390801 (DOI)2-s2.0-85050145938 (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
Available from: 2018-08-07 Created: 2018-08-07 Last updated: 2018-08-07Bibliographically approved
Zabasta, A., Kunicina, N., Kondratjevs, K., Patlins, A., Ribickis, L. & Delsing, J. (2018). MQTT Service Broker for Enabling the Interoperability of Smart City Systems. In: : . Paper presented at 2018 Energy and Sustainability for Small Developing Economies (ES2DE), July 9th to 12th, 2018, Funchal, Madeira Island..
Open this publication in new window or tab >>MQTT Service Broker for Enabling the Interoperability of Smart City Systems
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2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Smart city offers a concept of interconnection of modern digital technologies in the context of a city that provides a solution to enhance the quality and performance of urban services. However, interconnection of the Smart city systems still is a challenging process due to incompatibility of systems that apply a plenty of appropriate technical solutions and protocols that cause collaboration between automation devices such as sensors, actuators, controllers. Introduction of Internet-of-Things (IoT) provides promising opportunities to develop new services and integrate different application domains. The Arrowhead Framework aims to apply Service Oriented Architecture to the embedded systems' world. This research is focused on the one of the Arrowhead Framework core systems - Event Handler. This system supports the handling of events, and enriches service-oriented applications with the capabilities of interacting via the publish/subscribe paradigm. We implemented the Event Handler system as a MQTT enabled service broker, and deployed data flow programming tool Node-RED for wiring together divergent hardware devices and nodes, and APIs for online services. A case study of the service broker implemented for control of utilities systems in urban environment is presented and discussed.

Keywords
Automation, Smart cities, Cloud computing, Sensors, Protocols, Electrical engineering, Smart city systems, utilities, automation, SOA, MQTT broker, Arrowhead Framework core systems
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-71345 (URN)10.1109/ES2DE.2018.8494341 (DOI)
Conference
2018 Energy and Sustainability for Small Developing Economies (ES2DE), July 9th to 12th, 2018, Funchal, Madeira Island.
Available from: 2018-10-26 Created: 2018-10-26 Last updated: 2018-10-30Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-4133-3317

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