| 1. |
- Bicaku, Ani, 1988-, et al.
(författare)
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Interacting with the arrowhead local cloud : On-boarding procedure
- 2018
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Konferensbidrag (refereegranskat)abstract
- 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.
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| 2. |
- Blomstedt, Fredrik, et al.
(författare)
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The Arrowhead Approach for SOA Application Development and Documentation
- 2015
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Ingår i: IECON 2014. - Piscataway, NJ : IEEE Communications Society. - 9781479940318 - 9781479940325 ; , s. 2631-2637
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Konferensbidrag (refereegranskat)abstract
- The Arrowhead project aims to address the technical and applicative issues associated with cooperative automation based on Service Oriented Architectures. The problems of developing such kind of systems are mainly due to the lack of adequate development and service documentation methodologies, which would ease the burden of reusing services on different applications. The Arrowhead project proposes a technical framework to efficiently support the development of such systems, which includes several tools for documentation of services and to support the development of SOA-based installations. The work presented in this paper describes the approach which has been developed for the first generation pilots to support the documentation of their structural services. Each service, system and system- of-systems within the Arrowhead Framework must be documented and described in such way that it can be implemented, tested and deployed in an interoperable way. This paper presents the first steps of realizing the Arrowheadvision for interoperable services, systems and systems-of-systems.
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| 3. |
- Carlsson, Oscar, et al.
(författare)
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Configuration Service in Cloud based Automation Systems
- 2016
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Ingår i: IECON Proceedings (Industrial Electronics Conference). - Piscataway, NJ : IEEE Computer Society. ; , s. 5238-5245
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Konferensbidrag (refereegranskat)abstract
- Current challenges in production automation requires the involvement of new technologies like Internet of Things (IoT), Systems of Systems and local automation clouds. The objective of this paper is to address one of the challenges involved in establishing and managing a cloud based automation system. Three key capabilities have been identified as required to create the expected benefits of local automation clouds; 1) capturing of plant design 2) capturing and distributing configuration and deployment information 3) coordinating information exchange.This paper addresses the capturing and distribution of configuration and deployment information. For this purpose a system service is proposed, the ConfigurationStore, following the principles of the Arrowhead Framework. The service is accompanied by a deployment methodology and a bootstrapping procedure. These are discussed for several types of automation technology, e.g. controllers, sensors, actuators. A qualitative evaluation of the proposed approach is made for four use cases; Building automation, Manufacturing automation, Process automation and IoT devices. Concluding the usability for large-scale deployment and configuration of Industrial Internet of Things.
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| 4. |
- Carlsson, Oscar
(författare)
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Engineering of IoT Automation Systems
- 2017
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Major societal challenges such as environmental sustainability, availability of energy and raw materials, and globalisation are creating new requirements for many actors in society. These new requirements relate to efficiency, flexibility, sustainability, and competitiveness. While these aspects have all been around for some time, and many systems have been locally optimised with regards to one or a few of these requirements, recent advances in communication and processing capabilities promise increased possibilities for connecting different parts of society, allowing optimal operation on a much larger scale.While industrial production systems have been controlled electronically for decades, the digitisation of market channels and consumer systems, together with the possibility to interconnect different production facilities, now allow for automated interaction along the whole supply chain from raw materials to end users.Simultaneously, increased demand for efficiency forces increased specialisation among actors, which with increased possibilities of interconnectivity, creates large enterprises of cooperating, specialised stakeholders.One of the major remaining obstacles for a widespread adaptation of more intelligent, more connected systems, able to deliver these envisioned results, is a coherent approach to the engineering and management of Systems-of-Systems involving very large numbers of devices and operating across several automation domains.For traditional automation systems there are established engineering procedures and numerous standards for engineering data, although most are focused on the static processes that have traditionally been the norm. For full integration with a digital society many of the existing automation systems will need significant modifications and as many automation systems are ageing and in need of replacement, a suitable solution to this may be a large scale migration to new automation solutions.The work presented in this thesis includes some new approaches and methodologies to utilise the existing engineering procedures and standards, while introducing some of the flexibility proposed by the emerging technologies. The major technical solutions presented consist of a structure way to organise connected systems and how they are related, regardless of engineering standards used to design their interactions, and an approach to allow configuration of heterogeneous systems through service interactions.Further contributions include an approach for migrating certain categories of existing industrial control systems to a service oriented architecture, as a basic outline for adaption of the next generation of automation systems in industry.Certain remaining challenges have been identified, which have to be addressed for a successful launch of widespread interconnected automation systems based on Internet of Things and associated technologies.
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| 5. |
- Cats, Oded, et al.
(författare)
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A dynamic stochastic model for evaluating congestion and crowding effects in transit systems
- 2016
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Ingår i: Transportation Research Part B. - : Elsevier. - 0191-2615 .- 1879-2367. ; 89, s. 43-57
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Tidskriftsartikel (refereegranskat)abstract
- One of the most common motivations for public transport investments is to reduce congestion and increase capacity. Public transport congestion leads to crowding discomfort, denied boardings and lower service reliability. However, transit assignment models and appraisal methodologies usually do not account for the dynamics of public transport congestion and crowding and thus potentially underestimate the related benefits. This study develops a method to capture the benefits of increased capacity by using a dynamic and stochastic transit assignment model. Using an agent-based public transport simulation model, we dynamically model the evolution of network reliability and on-board crowding. The model is embedded in a comprehensive framework for project appraisal.A case study of a metro extension that partially replaces an overloaded bus network in Stockholm demonstrates that congestion effects may account for a substantial share of the expected benefits. A cost-benefit analysis based on a conventional static model will miss more than a third of the benefits. This suggests that failure to represent dynamic congestion effects may substantially underestimate the benefits of projects, especially if they are primarily intended to increase capacity rather than to reduce travel times.
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| 6. |
- Charlier, Maximilien, et al.
(författare)
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Support for IEEE 802.15.4 Ultra Wideband Communications in the Contiki Operating System
- 2016
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Ingår i: IEEE Symposium on Communications and Vehicular Technology in the Benelux (SCVT). - Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE). - 9781509043613
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Konferensbidrag (refereegranskat)abstract
- The use of UWB for Industrial Internet of Things (IIoT) applications benefits from the following four main properties; 1) scalability due to the inherent short transmissions times of the UWB radio, 2) bandwidth-consuming applications such as condition monitoring with vibration sensing, 3) applications with real-time positioning (RTLS) requirements, and 4) wireless communication in electromagnetically harsh environments with a high level of multipath fading. In this paper, we present a UWB-based 6LoWPAN implementation in the Contiki OS as a step towards incorporating UWB in the industrial IoT domain.
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| 7. |
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| 8. |
- Delsing, Jerker, 1957-, et al.
(författare)
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Concepts and Architecture for a Thumb-Sized Smart IoT Ultrasound Measurement System
- 2016
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Ingår i: IEEE Ultrasonic Symposium 2016. - Piscataway, NJ : IEEE conference proceedings. - 9781479981823 - 9781467398978
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Konferensbidrag (refereegranskat)abstract
- This paper presents the technology concepts for a “thumb”-sized self-contained ultrasonic IoT measurement sys- tem. An overall architecture is proposed, and key elements are discussed with solutions using existing technology, thus arguing that realization is possible with the current technology.Such an ultrasonic IoT measurement system is constrained by its size and available energy, although it requires at least decent computational and communication resources. Because streaming data from such a device is not advisable from an energy viewpoint, there is a need for resource efficient (energy, memory and computational power) data analysis.An architecture with the following parts as well as some implementation details and performance data are proposed here:Energy supply, battery and super capacitorTransducer excitation achieving almost zero electrical lossesEvent detection sensor interfaceData aggregation using sparse approximation and learnedfeature dictionaries, adapted to resource constrained em-bedded systemsIoT communication protocols and implementations enablingevent -based communication and System of Systems integra- tion capabilitiesThe optimization of system level performance requires each subsystem to be optimized for the specific measurement situation taking into account the subsystem interdependencies. This can be performed using a combined electrical and acoustical model of the system. Here, the model allowing electronic and acoustic co-simulation using SPICE is an important tool bridging the electronic and acoustic domains.
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| 9. |
- Delsing, Jerker, et al.
(författare)
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Enabling IoT automation using local clouds
- 2016
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Ingår i: Proceedings IEEE World Forum on Internet of Things. - Piscataway, NJ : IEEE Computer Society Digital Library. - 9781509041305 ; , s. 501-507
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Konferensbidrag (refereegranskat)abstract
- Various forms of cloud computing principles and technologies are becoming important recently. This paper ad- dresses cloud computing for automation and control applications. It’s argued that the open Internet cloud idea has such limitations that its not appropriate for automation.Since automation is physically and geographically local, it is inevitable to introduce the concept of local automation clouds. It’s here proposed that local automation clouds should be self contained an be able to execute the intended automation func- tionalities without any external resources. Thus providing a fence at the rim of the local cloud preventing any inbound or outbound communication. Such a local cloud provides possibilities to address key requirements of both todays and future automation solutions. Adding mechanisms for secure inter-cloud administra- tion and data tranfere enables local automation cloud to meet IoT automation system requirements as: 1) Interoperability of a wide range of IoT and legacy devices 2) Automation requirement on latency guarantee/prediction for communication and control computations. 3) Scalability of automation systems enabling very large integrated automation systems 4) Security and related safety of automation systems 5) Ease of application engineering 6) Multi stakeholder integration and operations agility.How these requirements can be met in such a local automation cloud is discussed with references to proposed solutions. The local automation cloud concept is further verified for a compartment climate control application. The control application included an IoT controller, four IoT sensors and actuators, and a physical layer communication gateway. The gateway acted as host for local cloud core functionalities. The climate control application has successfully been implemented using the open source Arrowhead Framework and its supports for design and implementation of self contained local automation clouds.
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| 10. |
- Delsing, Jerker, 1957-, et al.
(författare)
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The Arrowhead Framework architecture
- 2017
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Ingår i: IoT Automation. - Boca Raton, FL : CRC Press. - 9781498756754 - 9781498756761 ; , s. 43-88
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Bokkapitel (refereegranskat)
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