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  • 201.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Method and apparatus for measuring mass flowPatent (Övrig (populärvetenskap, debatt, mm))
    Abstract [en]

    Sammandrag från motsvarighet US5214966 PCT No. PCT/SE89/00615 Sec. 371 Date Apr. 29, 1991 Sec. 102(e) Date Apr. 29, 1991 PCT Filed Oct. 31, 1991 PCT Pub. No. WO90/05283 PCT Pub. Date May 17, 1990.In a method for measuring the mass flow M of a fluid flowing through a pipe having a cross-sectional area A, the sound velocity c2 in the fluid is determined as well as the flow velocity v of the fluid by sing-around technique. Further, reflection technique is used which comprises measuring the amplitude both of an ultrasonic pulse which has been reflected in a boundary between a first and a second material having different acoustic impedances, and of an ultrasonic pulse which has been reflected in the boundary between the second material and the fluid, it being possible to determine the density of the fluid on the basis of the measured amplitudes, the sound velocity c2 in the fluid and the acoustic impedances of the first and the second material. The mass flow M is then obtainable as M=vxAx rho 2. A mass flowmeter especially has a transducer with a piezoelectric crystal (5), a first block (6) of a first material disposed adjacent said crystal, and a second block (7) of a second material disposed between the first block and the fluid, and calculating and amplitude metering means (10 and 12).

  • 202.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Method and devices use in flow measurementPatent (Övrig (populärvetenskap, debatt, mm))
    Abstract [en]

    PCT No. PCT/SE96/00661 Sec. 371 Date Nov. 13, 1997 Sec. 102(e) Date Nov. 13, 1997 PCT Filed May 22, 1996 PCT Pub. No. WO96/37758 PCT Pub. Date Nov. 28, 1996In flow measurement, a measurement signal essentially representing the instantaneous flow rate is determined with the aid of a flow transducer (2) in a flowmeter (1). In order to check whether the flowmeter measures correctly or not, the noise in the measurement signal from the transducer (2) is analyzed. To be more specific, one or more distribution values for the measurement signal are determined and compared with predetermined reference values that have been determined for operating conditions for which the flow transducer is intended. If this comparison reveals that the existing operating conditions differ from those for which the flowmeter is intended, a frequency spectrum for the measurement signal may be determined and compared with reference spectra that have been determined for various known operating conditions, thereby to identify the existing operating conditions. If these are identified, the function of the flowmeter may be corrected on line with the aid of predetermined correction data.

  • 203.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Method for measuring in a fluid with the aid of sing-around techniquePatent (Övrig (populärvetenskap, debatt, mm))
    Abstract [en]

    Sammandrag från US5796009 During sing-around-type measurement in a fluid, a transmitter repeatedly transmits sound pulses in the fluid, and these sound pulses are received by a receiver, which acoustically is disposed opposite to the transmitter. The detection of the reception of a sound pulse at the receiver triggers the transmission of a subsequent sound pulse by the transmitter. In order to avoid any interference from multiple-reflected sound pulses, a delay is produced with the aid of the frequency of the received sound pulse, and the transmission of the subsequent sound pulse by the transmitter is triggered with this delay.

  • 204.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    MIGS WP3 Monitoring of Bolt Load: Review of sensor technology for bolt load measurements2009Rapport (Övrigt vetenskapligt)
    Abstract [en]

    A review of possible sensor technology for rock bolt load measurements has been made. The measurements requirements is given by the MIG-WP3 spec- ifications. The technology discussed is strain gauges, piezoelectric, piezo- resistive, fiber optic, Pressductor and ultrasound.In conclusion the most interesting sensing approach suitable for wireless bolt load measurement is a strain gauge technology by Hitec Corporation. This in combination with the Mulle sensor and communication platform forms a good basis for meeting the MIG-WP3 requirements.

  • 205.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Networked energy measurement and control in a natural gas grid2006Rapport (Övrigt vetenskapligt)
    Abstract [en]

    The application of sensor network technology to gas metering and control in a gas distribution grid is discussed. Introduced by a brief overview of sensor network and sensor fusion ideas two different scenarios for applying networked sensors to gas metering and control are discussed. Possibilities for improved gas metering accuracy and improved customer communication are discussed. Such improvements will possibly result in new customer services that can be offered by the gas supplier and better energy efficiency. Based on this it is proposed a demonstration project. Here sensor networking applied to gas metering, the resulting services and related ideas will be tested and demonstrated at 10 customers. In addition investigations on customer realtions and future system cost and quality will be made. A very rough project cost estimate is 4.75 MSEK. To further investigate the possibilities of sensor networks in the gas distribution business also a research project is proposed. The research project will investigate new technology for estimating data on energy usage and system performance and system daignoses. Furhter architectures for suitable for networked sensors fusion in gas metering will be investigated. Project results will possibly provide more cost efficient system maintenance and improved system energy efficiency. A research project over 3.5 year is cost estimated to 5.82 MSEK.

  • 206.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Proceedings 9th International Conference on Flow Measurement: FLOMEKO '98, June 15-17, 1998, Lund, Sweden1998Samlingsverk (redaktörskap) (Övrigt vetenskapligt)
  • 207.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Real World Real Time Embedded Internet Systems2006Konferensbidrag (Refereegranskat)
  • 208.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    The prospect of self-diagnosing flow meters: key-note paper2004Ingår i: Proceedings of the 12th International Conference on Flow Measurement: FLOMEKO 04, Chinese Society for Measurement Press , 2004, s. 59-64Konferensbidrag (Refereegranskat)
    Abstract [en]

    Flow meters delivering inaccurate data is an economical and costumer relation concern in most areas of application where flow meters are key components for billing. Solution to this have so far been improved standards and schemes to implement and maintain such standards for the life time of the flow meter. In contradiction to quality standard comes the flow meter self-diagnostic solution. Here the flow meter it self is capable of diagnosing the magnitude of its own metering error. It can then issue an alarm or even better impose corrections thus reducing the metering accuracy to an acceptable level.This paper will discuss strategies for obtaining self-diagnosis and show some resent on-going work going towards self-diagnosing or even self-correcting ’ flow meters. Indicating that real intelligent flow meters is a possible future.

  • 209.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Towards industrial and societal automation and digitisation2017Ingår i: IoT Automation: Arrowhead Framework / [ed] Jerker Delsing, Boca Raton, FL: CRC Press , 2017, , s. 366s. 1-25Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    The need for new technology High level topics in today’s society are sustainability, flexibility, efficiency, and competitiveness. These in turn are driven by big societal questions like environmental sustainability, availability of energy and other raw materials, and rapidly changing market trends. We find several trends that in different ways requirements. Another is learning from previous products, other parts of the value chain, the life cycle of the product and the product or service production process itself. 

  • 210.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Albano, Michele
    ISEP, Polytechnic Institute of Porto.
    Ferreira, Luis
    ISEP, Polytechnic Institute of Porto.
    Blomstedt, Fredrik
    BnearIT AB.
    Olofsson, Per
    BnearIT AB.
    Varga, Pal
    AITIA Inc.
    Montori, Frederico
    University of Bologna.
    Viola, Fabio
    University of Bologna.
    Application system and services: Design and mplementation - A cookbook2017Ingår i: IoT Automation: Arrowhead Framework / [ed] Jerker Delsing, Boca Raton, FL: CRC Press , 2017, , s. 366s. 139-160Kapitel i bok, del av antologi (Refereegranskat)
  • 211.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Borg, Johan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Johansson, Jonny
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Architecture for extreme low power sensing in wireless sensor network devices2011Ingår i: SENSORCOMM 2011: The Fifth International Conference on Sensor Technologies and Applications, International Academy, Research and Industry Association (IARIA), 2011, s. 157-160Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    When discussing powering wireless sensor network nodes, there are a few major energy consumers: communications, microcontroller and the sensor. We propose a wireless sensor network platform architecture minimizing the energy consumption of sensing. The architecture proposed herein is based on a reactive approach to sensing. A number of possible hardware approaches are evaluated and compared. This comparison indicates that analog storage between the sensing element and the sensor electronics can be a feasible method for reducing the energy consumption of the system.

  • 212.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Borg, Johan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Johansson, Jonny
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    New architecture for efficient data sampling in Wireless Sensor Network Devices2013Konferensbidrag (Refereegranskat)
    Abstract [en]

    When discussing powering wireless sensor net- work nodes, there are a few major energy consumers: com- munications, microcontroller and the sensor. We propose a wireless sensor network platform architecture minimizing the energy consumption of sensing. The architecture proposed herein is based on a reactive approach to sensing. A number of possible hardware approaches are evaluated and compared. This comparison indicates that analog storage between the sensing element and the sensor electronics can be a feasible method for reducing the energy consumption of the system.

  • 213.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Carlsson, Oscar
    Midroc Electro AB, Stockholm.
    Arrigucci, Fredrik
    Midroc Electro AB, Malmö.
    Bangemann, Thomas
    Ifak - Institut für Automation und Kommunikation.
    Hübner, Christian
    Ifak - Institut für Automation und Kommunikation.
    Colombo, Armando W.
    Schneider Electric, Marktheidenfeld.
    Nappey, Philippe
    Schneider Electric, Grenoble.
    Bony, Bernard
    Schneider Electric, Grenoble.
    Karnouskos, Stamatis
    SAP Research, Karlsruhe.
    Nessaether, Johan
    Midroc Electro AB, Stockholm.
    Kyusakov, Rumen
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Migration of SCADA/DCS Systems to the SOA Cloud2014Ingår i: Industrial Cloud-Based Cyber-Physical Systems: The IMC-AESOP Approach, Encyclopedia of Global Archaeology/Springer Verlag, 2014, s. 111-135Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    As process control and monitoring systems based on a Service-Oriented Architecture (SOA) are maturing, the need increases for a systematic approach to migrate systems. The legacy systems are traditionally based on a strict hierarchy and in order to gradually allow additional cross-layer interaction, the migration procedure needs to consider both—functionality and architecture of the legacy system. The migration procedure proposed here aims to preserve the functional integration, organize the SOA cloud through grouping of devices, and maintain the performance aspects such as real-time control throughout the whole migration procedure.

  • 214.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Ek, M
    Luleå tekniska universitet.
    A mobile internet enabled blood pressure meter using Bluetooth2000Konferensbidrag (Refereegranskat)
  • 215.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Ekman, Jonas
    Johansson, Jonny
    Intentional EMI considerations for sensor networks2005Konferensbidrag (Refereegranskat)
  • 216.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Ekman, Jonas
    Johansson, Jonny
    Sundberg, Sofia
    Bäckström, Mats
    Swedish Defence Research Agency FOI, Division of Sensor Technology.
    Nilsson, T.
    Swedish Defence Research Agency FOI, Division of Sensor Technology.
    Susceptibility of sensor networks to intentional electromagnetic interference2006Ingår i: 2006 17th International Zurich Symposium on Electromagnetic Compatibility: Suntec City, Singapore, 28 February - 3 March 2006, Piscataway, NJ: IEEE Communications Society, 2006, s. 172-175Konferensbidrag (Refereegranskat)
    Abstract [en]

    It is reasonable to think that sensor networks might be part of society critical systems in the future. Therefor this paper discusses and shows the vulnerabilities of sensor networks to intentional electromagnetic interference (IEMI). Principle ways of sensor network IEMI is addressed and followed by a discussion on schemes for protection. Experimental results for both in-band and exband interference from low- and high- level sources is reported. It is obvious that more emphasis has to be put on sensor networks susceptibility to IEMI, and in particular more experimental data is needed.

  • 217.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Ekman, Jonas
    Lundgren, Urban
    BAE Systems.
    Robust encapsulation for embedded systems with controllable RF channel2005Konferensbidrag (Övrigt vetenskapligt)
  • 218.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Ekman, Jonas
    Mäkitalo, P.
    Niska, Stefan
    Wisten, Åke
    Sources and propagation of eectromagnetic transients in railway systems, S01-3915/08. Final Report2005Rapport (Övrigt vetenskapligt)
    Abstract [en]

    The railway system is continuously being updated. Upgrading axle loads, introducing new engines with increasing power needs and advanced motor control give unwanted electromagnetic consequences for electronic-, telecommunication-, and signalling systems along the track. This can, for example, lead to failure in detector systems and traffic control systems and increased cost due to corrective maintenance. This research project was initiated with the purpose of understanding origin and propagation of radiated and conducted electromagnetic transients in the railway system. To investigate the problem of radiated and conducted electromagnetic interference, it has been necessary to develop new measuring methods. Measurements have been conducted to determine if the more sensitive low voltage systems are influenced by higher voltage systems. An existing electromagnetic modeling tool has been utilized, to model crosstalk between the rails and the overhead line catenary system, and modified to incorporate a combination of two- and three- dimensional models to reduce time and space complexity. The resulting simulation environment can be used to analyze possible sources of electromagnetic disturbances in the coexisting signaling circuitry of today, and to reduce the influence of these sources. This gives a new application of the measurement method and further development of a simulation tool. One of the objectives in this project has been to find out the tolerance of the low voltage detector systems in presence of the higher voltage system used in the railways. One of the conclusions is that correct installation is important and that failure to comply with installation procedures results in high electromagnetic interference. There is no correlation between the presence of trains and randomly occurring disturbances.

  • 219.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Albano, Michele
    ISEP, Polytechnic Institute of Porto.
    Varga, Pal
    AITIA Inc.
    Ferreira, Luis
    ISEP, Polytechnic Institute of Porto.
    Derhamy, Hasan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Hegedűs, Csaba
    AITIA Inc.
    Puñal Pereira, Pablo
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Carlsson, Oscar
    Midroc Electro AB, Stockholm.
    Arrowhead Framework core systems and services2017Ingår i: IoT Automation: Arrowhead Framework / [ed] Jerker Delsing, Boca Raton, FL: CRC Press , 2017, , s. 366s. 89-138Kapitel i bok, del av antologi (Refereegranskat)
  • 220.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Gustafsson, Jonas
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Kyusakov, Rumen
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Kruglyak, Andrey
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Mcload, Stuart
    University of Warwick, Coventry.
    Harrison, Robert
    University of Warwick, Coventry.
    Colombo, Armando W.
    Schneider Electric, Marktheidenfeld.
    Mendes, J Marco
    Schneider Electric, Marktheidenfeld.
    Building System of Systems with SOA Technology: A Smart House Use Case2014Ingår i: Industrial Cloud-Based Cyber-Physical Systems: The IMC-AESOP Approach, Encyclopedia of Global Archaeology/Springer Verlag, 2014, s. 219-230Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    The IMC-AESOP architecture has been used to implemente a smart house demonstration. Six different systems has been integrated with local (802.11, 802.15.4) and global (telecom) communication. The six systems integrated are: Car arrival detection system, Garage door opening system, House security system, External house lightning system, External electrical outlet system, House energy control system. The SOA technologies used are CoAP and EXI using SenML to encode the services. Engineering tools have been used to simulate the usage scenario and provide prediction of system behaviour.

  • 221.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Kyusakov, Rumen
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Colombo, Armando W.
    University of Applied Sciences, Emden and Schneider Electric.
    Jammes, Francois
    Schneider Electric.
    Nessaether, Johan
    Midroc.
    Karnouskos, Stamatis
    SAP Research.
    Diedrich, Christian
    Ifak - Institut für Automation und Kommunikation.
    A migration approach towards a SOA-based next generation process control and monitoring2012Ingår i: IECON 2011: 37th Annual Conference on IEEE Industrial Electronics Society : Melbourne, VIC; 7 November 2011 - 10 November 2011, Piscataway, NJ: IEEE Communications Society, 2012, s. 4319-4324Konferensbidrag (Refereegranskat)
    Abstract [en]

    Interest in Service Oriented Architectures (SOA) in the automation domain has seen a rapid increase both from the academia as well as the industry recent years. Since green field plants today are not common, the partial migration of plant automation to SOA design is needed to introduce new functionalities. Thus strategies and approaches for migration from legacy to SOA architectures becomes of vital interest. This paper discusses different views on partial migration of a process monitoring and control system from legacy to SOA. The discussion includes a global top down view, a bottom up view, hardware/software considerations and a hint on training of personnel.

  • 222.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Kyusakov, Rumen
    Punal, Pablo
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Mäkitaavola, Henrik
    Larsmark, Mikael
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Project: Arrowhead2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 223.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Leijon, Viktor
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Latency and packet loss of an interferred 802.15.4 channel in an industrial environment2010Ingår i: Fourth International Conference on Sensor Technologies and Applications, SENSORCOMM, International Academy, Research and Industry Association (IARIA), 2010, s. 33-38Konferensbidrag (Refereegranskat)
    Abstract [en]

    There is currently a rapid development of new types of wireless communication channels for industrial automation. This paper aims to provide some experimental data and theoretical justification on packet latency and packet loss for a wireless communication channel exposed to intentional radio interference. The intentional radio interference used in the experiments is an attempt to simulate possible future co-existence scenarios in a dense wireless communication environment at an industrial site. For the cases tested packet loses of less than 10% was obtained. Latency is shown to depend on channel access and will has a deterministic behaviour.

  • 224.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Punal, Pablo
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Gebart, Joakim
    Eistec AB.
    The IoT Rockbolt2015Konferensbidrag (Refereegranskat)
    Abstract [en]

    The use of rock bolts in the mining industry is a widely used approach for increasing mine stability. Here we demonstrate an IoT rockbolt with strain and accelerometer sensors. By utilizing the real-time monitoring capabilities of a network of IoT rockbolts, open up for drastically improve monitoring of mining activities and thereby providing real time logistics and operational information while at the same time provide working safety information.

  • 225.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Hyyppä, Kalevi
    Isaksson, Thord
    Luleå tekniska universitet.
    The IP-meter, design concept and example implementation of an Internet enabled power line quality meter2000Ingår i: Smart connectivity: integrating measurement and control: proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference, Hilton Hotel and Towers, Baltimore, Maryland, USA, May 1 . 4, 2000, Piscataway, NJ: IEEE Communications Society, 2000, s. 657-660Konferensbidrag (Refereegranskat)
    Abstract [en]

    An Internet Protocol enabled meter, IP-meter, has been designed. As an example of the IP-meter a power line quality meter fully accessible over the Internet has been implemented. The meter is capable of measuring line frequency harmonics with spectral information, transients, line voltage RMS with sags and swells analysis. The Internet access for this application is made over a thin Ethernet medium. The Internet connection is made with a three part design concept: sensor part, microprocessor part and communication part. Served by the built in Webserver the meter is fully accessible via a standard internet browser. Meter setup, data display etc. are made using html pages and Java applets.

  • 226.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Isaksson, Alf
    ABB.
    Regelring över trådlös länk2008Konferensbidrag (Övrigt vetenskapligt)
  • 227.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Jomni, Yassin
    Yliniemi, Kimmo
    van Deventer, Jan
    Heat metering - not just for invoicing2006Konferensbidrag (Övrigt vetenskapligt)
  • 228.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Karlsson, Kristoffer
    Low-pressure gap discharge ultrasonic gas flowmeter2010Ingår i: The 15th International Flow Measurement Conference: FLOMEKO 2010 October 13-15 2010, Taipei Taiwan, 2010, s. 259-266Konferensbidrag (Refereegranskat)
    Abstract [en]

    Low-pressure gas measurements are of increasing interest in the process industry for both control purposes and emission measurements. Industrial measurement environments include some very challenging components, such as:- Dust, particles, vapor, water droplets, etc.- Temperatures up to 1200°C- Pipe diameters of 1 to 10 mUltrasound flow measurement techniques have many advantages for such industrial measurement problems. Currently, a major problem is the lack of transducer technology that is sufficiently robust to operate in the presence of the above given industrial components. For the purpose of producing more robust technology, a gap discharge sound transmitter has been developed [1, 2]. Theoretical and experimental studies of the gap discharge transmitter indicate that flow measurement performances in the range of 1-2% of the actual flow is achievable [3]. Based on this gap discharge transmitter, an experimental ultrasound gas flowmeter was designed. The design features a gap discharge transmitter and piezo-based receivers. The design was tested in a real industrial environment. The test environment included heavy dust and water vapor in an exhaust pipe at a pelletization plant at LKAB, Kiruna, Sweden. The pipe diameter is 3 m, the pressure is ambient, and the gas flow speed is in the range of 5-20 m/s. The flow conditions were highly turbulent, using a straight pipe length ten times the pipe diameter in front of the experimental flowmeter. This paper presents the experimental gap discharge ultrasonic flowmeter design, the experimental setup and some measurement data. These data indicate that the gap discharge transmitter is feasible for operation in an industrial environment. Further preliminary flow measurement data demonstrate the feasibility of using a gap discharge transmitter as the sound-emitting source in an ultrasonic gas flowmeter.

  • 229.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Lindblom, Jerry
    Sjölund, Daniel
    Luleå tekniska universitet.
    Lindgren, Per
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Real time wireless measurement of mechanical data for a javelin throw2005Ingår i: Proceedings of the 13th Nordic-Baltic Conference of BioMedical Engineering and Medical Physics: NBC'05 / [ed] R Lundström; B Andersson; H Grip, Swedish Society for Medical Engineering and Medical Physics , 2005, s. 134-135Konferensbidrag (Refereegranskat)
    Abstract [en]

    Technology for the real time measurement of mechanical data from a javelin throw has been developed. The javelin is instrumented with an ineartial measurement unit measuring, IMU, acceleration, angle speed and direction to the earth magnetic field all in three dimensions i.e. in total nine parameters. The IMU is buildt into the javelin still maintaining the javelin properties and keeping it within the IAAF specifications. The instrumentation is build using the EIS architecture thus incorporating TCP/IP support including an Internet server. The wireless communication technology choosen is Bluetooth that connects to Internet through either a Bluetooth enabled mobile phone or a stationary Bluetooth accesspoint

  • 230.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Lindgren, Per
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Mobile Internet enabled sensors using mobile phones as access network2003Ingår i: Concurrent Engineering: the vision for the future generation in research and applications : proceedings of the 10th ISPE International Conference on Concurrent Engineering : research and applications / [ed] R. Jardim-Gonçalves; Jianzhong Cha; Adolfo Steiger-Garção, Lisse: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 2003, s. 741-746Konferensbidrag (Refereegranskat)
    Abstract [en]

    We envision ambient intelligent environments with an infrastructure based on heterogeneous sensor and actuator devices accessible over the Internet. Initial steps to realize this concept have been taken by developing an Embedded Internet System (EIS) architecture for Internet protocol enabled devices. In many cases these devices will be in close proximity to a person. Such applications are found in for example sport and wellness. The mobile connection of such devices to the global Internet in a simple and cheap way is of particular interest. It is here proposed that such connection will make use of the existing and wide spread mobile phone networks. Since a few years most new mobile phones are equipped with Bluetooth technology making a mobile phone capable of connecting to 7 other Bluetooth devices. Thus by giving EIS devices a Bluetooth communication channel it will become possible to tunnel the EIS sensor communication through a mobile phone nearby the sensor. The proposed architecture will be described with discussion on limitations due to existing infrastructures and business models in the telecom networks.

  • 231.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Lindgren, Per
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Sensor communication technology towards ambient intelligence2005Ingår i: Measurement science and technology, ISSN 0957-0233, E-ISSN 1361-6501, Vol. 16, nr 4, s. R37-R46Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper is a review of the fascinating development of sensors and the communication of sensor data. A brief historical introduction is given, followed by a discussion on architectures for sensor networks. Further, realistic specifications on sensor devices suitable for ambient intelligence and ubiquitous computing are given. Based on these specifications, the status and current frontline development are discussed. In total, it is shown that future technology for ambient intelligence based on sensor and actuator devices using standardized Internet communication is within the range of possibilities within five years.

  • 232.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Lindgren, Per
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Östmark, Åke
    Mobile Internet enabled sensors using mobile phones as access network2004Ingår i: Electronic journal of information technology in construction, ISSN 1403-6835, E-ISSN 1400-6529, Vol. 9, nr Special Issue Mobile Computing in Construction, s. 381-388Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We envision ambient intelligent environments with an infrastructure based on heterogeneous sensor and actuator devices accessible over the Internet. Initial steps to realize this concept have been taken by developing an Embedded Internet System (EIS) architecture for Internet protocol enabled devices. In many cases these devices will be in close proximity to a person. Such applications are found in for example sport and wellness. The mobile connection of such devices to the global Internet in a simple and cheap way is of particular interest. It is here proposed that such connection will make use of the existing and wide spread mobile phone networks. Since a few years most new mobile phones are equipped with Bluetooth technology making a mobile phone capable of connecting to 7 other Bluetooth devices. Thus by giving EIS devices a Bluetooth communication channel it will become possible to tunnel the EIS sensor communication through a mobile phone nearby the sensor. The proposed architecture will be described with discussion on limitations due to existing infrastructures and business models in the telecom networks.

  • 233.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Niemi, Jan
    Ultrasound flow meter errors related to transducers cavities2000Ingår i: FLOMEKO 2000: Fiesta Convention Center, June 4 - 8, 2000, Salvador, Bahia, Brazil, 2000Konferensbidrag (Refereegranskat)
  • 234.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Nilsson, RC
    Identification of inaccurate gasflow meters by a finger-print technique1996Ingår i: Proceedings of the 8th International Conference on Flow Measurement: FLOMEKO '96 / [ed] Zhang Baoyu, Beijing: Standard Press of China , 1996, s. 590-Konferensbidrag (Refereegranskat)
  • 235.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Nilsson, Ulf R.C.
    Luleå tekniska universitet.
    In situ detection of inaccurate gas flow meters using a fingerprint technique1998Ingår i: Flow Measurement and Instrumentation, ISSN 0955-5986, E-ISSN 1873-6998, Vol. 9, nr 3, s. 143-152Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This work describes an in situ method for the testing of mechanical flow meters. The method was developed on diaphragm gas meters, but can be applied to most mechanically-based flow meters. The proposed fingerprint method analyses the behaviour of the meter during a work cycle. The result from the analysis is a ''fingerprint'' of the meter, in which mechanical errors in the meter can be detected. This is explained by the mechanical connection between the sensing mechanism and the mechanical output from the meter. An error analysis of a diaphragm meter was carried out to deduce the type of errors that are likely to occur in such meters. The most severe malfunctions are leakage, internal friction and liquid in the meter. These errors can either lead to measuring errors or can cause the meter to cease functioning. The fingerprint method has been tested on meters with simulated errors and on used meters taken from the gas grid in Lund. The fingerprint method can correctly diagnose errors such as leakage, increased friction and liquid in the meter.

  • 236.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Rosenqvist, Fredrik
    Midroc Electric.
    Carlsson, Oscar
    Midroc Electro AB, Stockholm.
    Colombo, Armando W.
    University of Applied Sciences Emden.
    Bangemann, Thomas
    Ifak - Institut für Automation und Kommunikation.
    Migration of industrial process control systems into service oriented architecture2012Ingår i: 38th Annual Conference of the IEEE Industrial Electronics Society (IECON2012), 25-28 October 2012, Montreal, Canada, Piscataway, NJ: IEEE Communications Society, 2012, s. 5790-5796Konferensbidrag (Refereegranskat)
    Abstract [en]

    The procedure of migrating SCADA and DCS func- tionality of the isa95 process automation architecture to a Service based automation architecture is discussed. Challenges in such migration are discussed and defined. From here the necessary migration technology and procedures are proposed. The critical migration technology is based on the mediator concept. The migration procedure is based on a functionality perspective and comprises four steps: initiation, configuration, data processing and control execution. Its argued that these steps are necessary for the successful migration of DCS and SCADA functionality in to the automation cloud.

  • 237.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Svensson, Berndt
    En ny metod för funktionsdiagnos och felsökning av fjärrvärmecentraler utifrån värmemängdsdata2001Rapport (Övrigt vetenskapligt)
    Abstract [sv]

    Bakgrunden till arbetet ligger i önskemålet från fjärrvärmebranschen att kunna erbjuda en bra leveranskvalitet och en korrekt debitering av värme. Ett flertal komponenter i en fjärrvärmecentral kan orsaka problem. Forskningsprojektets mål är att utveckla en diagnosmetod för att i ett tidigt skede kunna detektera felaktiga fjärrvärmecentraler och lokalisera orsaken. På så sätt kan underhållet styras och bli effektivare. Diagnostiken består av en linjär analysmodell som endast utnyttjar redan tillgänglig mätdata från värmemätaren. Slutsatsen är att diagnostiken kan identifiera felaktiga fjärrvärmecentraler och potentiellt även peka ut vilken komponent som behöver åtgärdas. Diagnosen som endast utnyttjar debiteringsdata skulle kunna utföras centralt eller av fjärrvärmecentralen själv.

  • 238.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Svensson, Bernt
    Institutionen för Värme- och Kraftteknik, Lunds universitet.
    Jämförelsemätningar av flödeshastighet mellanultraljudsmätare av Clamp-On typ ochdebiteringsmätare i fjärrvärmeabonnentcentraler1995Rapport (Övrigt vetenskapligt)
  • 239.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Taylor, Ken W
    Dresser Equipment Group Inc..
    Tube/casting connector assembly and methodPatent (Övrig (populärvetenskap, debatt, mm))
    Abstract [en]

    A tube (10)/casting (14) assembly and method according to which an axially projecting cylindrical flange (14a) projects from one end of a tubular casting (14) over which an end portion of the conduit (10) extends. A groove (14b) is formed in the casting (14) for receiving the end portion of the conduit (10) and a retainer (22a, 22b) secures the end portion of the conduit (10) in the groove (14b).

  • 240.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Thor, Jonas
    Ahlgren, Bengt
    Luleå tekniska universitet.
    A wireless PAN for realtime monitoring of hockey players2000Konferensbidrag (Refereegranskat)
  • 241.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    van Deventer, Jan
    Micro webservers for monitoring and control in energy distribution2006Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Todays district heating and gas substations for domestic heating uses a since long time established heat metering and control technology. The measurement and control system architecture is based on a paradigm of non communicating sensors and regulators. The now evolving paradigm of sensors and actuators connected in sensor networks open for new measurements and control concepts to be used in energgy measurement and control. The sensor network approach enables the use of sensor fusion theory. Thus enabling improved measurement accuracy, improved control possibilites and estimation of interesting more parameters like tap water energy consumption etc. Further it leads to a capability of customer communication using live energy data. Using the Embedded Internet System (EIS) architecture every sensor, actuator and control box in a substation will be individually connected to the Internet. This opens for flow of data from the heat meter to the control system opening new possibilites for control and data estimation. It also opens for data from the control system to support improved heat measurement. Similar solutions can be found in the gas application. In district heating we expect improvements like, improved heat metering accuracy, maximized differanse temperature, minimized forward flow temperature, hot water energy measurement each of them having economical impact.

  • 242.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    van Deventer, Jan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Derhamy, Hasan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Varga, Pal
    Budapest University of Technology and Economics, Dept. of Telecommunications and Media Informatics, Budapest, Hungary.
    Enabling IoT automation using local clouds2016Ingår i: Proceedings IEEE World Forum on Internet of Things, Piscataway, NJ: IEEE Computer Society Digital Library, 2016, s. 501-507, artikel-id 7845474Konferensbidrag (Refereegranskat)
    Abstract [en]

    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.

  • 243.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    van Deventer, Jan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Johansson, Jonny
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Löfqvist, Torbjörn
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Sandin, Fredrik
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Concepts and Architecture for a Thumb-Sized Smart IoT Ultrasound Measurement System2016Ingår i: IEEE Ultrasonic Symposium 2016, Piscataway, NJ: IEEE conference proceedings, 2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    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 capacitor

    • Transducer excitation achieving almost zero electrical losses

    • Event detection sensor interface

    • Data aggregation using sparse approximation and learned

      feature dictionaries, adapted to resource constrained em-

      bedded systems

    • IoT communication protocols and implementations enabling

      event -based communication and System of Systems integra- tion capabilities

      The 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. 

  • 244.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    van Deventer, Jan
    Gustafsson, Jonas
    A service oriented architecture to enable a holistic system approach to large system maintenance information2010Ingår i: The Seventh International Conference on Condition Monitoring and Machinery Failure Prevention Technologies: 22 - 24 June 2010, Ettington Chase, Stratford-upon-Avon, England ; CM 2010/MFPT 2010, Northampton: Coxmoor Publishing Co. , 2010, Vol. 2, s. 907-914Konferensbidrag (Refereegranskat)
    Abstract [en]

    Heavy machinery in today's process industry is equipped with an increasing number of sensors for control and maintenance purposes. Each sensor is engineered and configured for a dedicated purpose; thus, the data or information provided by each sensor is confined to a specific purpose. Changing this individual approach to a holistic approach for control, operation and maintenance allows the data to be used in new ways, such as new control strategies, operation strategies and maintenance management. The holistic approach is demonstrated for a process of continuous energy generation and distribution: district heating. The purpose-based approach is replaced with the holistic approach, which focuses on system optimization and failure detection. The system was first set up in a Simulink simulation model to capture the thermodynamic behavior of the houses attached to the district heating system. In this model, each sensor is seen as a service that can be accessed for different purposes. Model analysis in this case led to new approaches for control and maintenance of critical parts in a district heating system.The new holistic approach is realized as a service-oriented architecture (SOA)-based wireless sensor network. It is currently installed in a small part of a district heating system in Piteå, Sweden. The system utilizes a wireless sensor network with service-oriented architecture using device profile web services (DPWS). Based on the data and information provided by the SOA wireless sensor network, the system can be identified. For the district heating example, the system identification provides system parameters that can be used to improve the thermodynamic Simulink model. Thus, comparisons can be made over time to determine system degradation. Furthermore, possible maintenance actions can be modeled, which allows prediction of system performance improvements related to specific maintenance actions.

  • 245.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    van Deventer, Jan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Yliniemi, Kimmo
    Gustafsson, Jonas
    Jomni, Yassin
    Projekt: Fjärrvärme2007Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 246.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Varga, Pal
    AITIA Inc.
    Local automation clouds2017Ingår i: IoT Automation: Arrowhead Framework / [ed] Jerker Delsing, Boca Raton, FL: CRC Press , 2017, , s. 366s. 27-40Kapitel i bok, del av antologi (Refereegranskat)
  • 247.
    Delsing, Jerker
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Varga, Pal
    AITIA Inc.
    Ferreira, Luis
    ISEP, Polytechnic Institute of Porto.
    Albano, Michele
    ISEP, Polytechnic Institute of Porto.
    Puñal Pereira, Pablo
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Carlsson, Oscar
    Midroc Electro AB, Stockholm.
    Derhamy, Hasan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    The Arrowhead Framework architecture2017Ingår i: IoT Automation: Arrowhead Framework / [ed] Jerker Delsing, Boca Raton, FL: CRC Press , 2017, , s. 366s. 43-88Kapitel i bok, del av antologi (Refereegranskat)
  • 248.
    Derhamy, Hasan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Architectural Design Principles For Industrial Internet of Things2018Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    As society has progressed through periods of evolution and revolution, technology hasplayed a key role as an enabler. In the same manner that mechanical machines of the1800’s drove the industrial revolution, now digitalized machines are driving another one.With this recognition of a fourth industrial revolution, the Industry 4.0 initiative wasfounded. One of the drivers of Industry 4.0 is the Industrial Internet of Things (IIoT).

    The IIoT is a consequence of widely present computing ubiquity and interconnected-ness. Software has become a crucial tool of almost all industries from bakeries and arts to manufacturing facilities and banking. Programming is now a required competenceand used by a variety of professions. It is not only about algorithm development, it has become more about engineering and integrating existing designs and tools. This impacts the way software is architected and drives a large body of research in the area.

    Software solutions are becoming more distributed, not only over multiple processes, but over heterogeneous hardware and business domains. Computing platforms could bemobile or geographically separated over large distances, exposing the solutions to network disturbances, performance degradation and security vulnerabilities.

    Hence, IIoT introduces complexity on a scale previously unseen in the software in-dustry. Software architecture must accommodate these heterogeneous domains and com-petencies and handle the increasing levels of complexity.

    This thesis proposes an architectural style for designing IIoT software architectures.The popular Service Oriented Architecture (SOA) style is not sufficient to define a com-plete architecture for IIoT applications. SOA fundamental principles are defined as loose coupling, lookup and late binding. The proposed architecture style extends these SOA principles with autonomy, specialization, data at its source and first person perspective. It preserves the benefits of SOA that models functionalities as reusable services with standardized interfaces. Thus, the proposed style helps to capture the heterogeneity of IIoT (e.g. systems, capabilities, domains, competencies etc.), while handling challenges imposed by it. The style also captures resource constraints of IIoT platforms; distri-bution of application logic across IIoT; dependence between services within IIoT; and presentation of the solution in various stakeholder perspectives.

    The IIoT generates large amounts of data that is subsequently stored, analysed, archived and eventually fed back into the product life cycle. Centralization of data has well known challenges. This thesis proposes a method of information extraction based on the principle of data at its source. Such data preserves implicit context, reducing the burden of semantic data within the system. Desired information is expressed through dynamic (runtime) queries. Using the queries, a path is created to retrieve the requested data. It alleviates the need for data to be stored in intermediary nodes; data remains atthe source. Thus, IIoT applications extract information and present it to requesting sys-tems without redundant source related context. This helps with issues of data ownership, access control and stale data.

    Another IIoT challenge tackled in this work is decentralization of Manufacturing Execution System (MES). It is motivated by a need to mitigate the impact of vulnerable shared networks on the factory floor; and by business requirements to reduce dependence on local factory infrastructure. This thesis explores a solution where functions of MES are distributed to the workstations that enables them to operate autonomously. Such autonomous workstations utilize the proposed Intelligent Product, Workflow Managerand Workflow Executor systems. Thus, MES can be decentralized to edge nodes as envisioned by Industry 4.0.

  • 249.
    Derhamy, Hasan
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Software Architectural Style for Industrial Internetof ThingsIngår i: IEEE Internet of Things Journal, ISSN 2327-4662Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    As society has progressed through periods of evolutionand revolution, technology has played a key role as anenabler. In the same manner that mechanical machines of the1800’s drove the industrial revolution, now digitalized machinesare driving another industrial revolution. With the recognitionof a fourth industrial revolution the Industry 4.0 initiative wasfounded in Germany in 2011. One of the drivers of Industry4.0 is the Industrial Internet of Things. The Internet of Thingsis a natural step as computing ubiquity and interconnectednessbecome more widely present. Add to this intelligence, delegationand human orientation and the result is software intensiveengineering at almost all layers (excluding the physical andhuman layers). Software development is a competency in communications,information systems, computer science, softwareand computer systems engineering and electrical and electronicengineering. Software solutions are becoming more distributed,not only over processes, but over heterogeneous computing platformsand business domains. These platforms could be physicallyseparated over large distances, or highly mobile platforms withvarying security requirements. All these requirements introducecomplexity on a scale previously unseen in the software industry.

  • 250.
    Derhamy, Hasan
    et al.
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Andersson, Mattias
    Volvo Trucks Corporation, Gothenberg.
    Eliasson, Jens
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Delsing, Jerker
    Luleå tekniska universitet, Institutionen för system- och rymdteknik, EISLAB.
    Workflow management for edge driven manufacturing systems2018Konferensbidrag (Refereegranskat)
    Abstract [en]

    The fourth industrial revolution is one of digitization. As manufacturers build more digital equipment into their process harnessing the potential becomes a challenge. ISA 95 based manufacturers rely on top down decision making, with redundant flow of information in order to organize Workflows on the factory floor. With advances in edge computing and smart objects, more decision are made at lower levels of the infrastructure hierarchy. However, how can the MES tracking and execution functions be decentralized while maintain an organized collaboration of smart objects? This paper proposes a Cyber Physical Service Oriented System of Systems operating on edge computing. There are three systems proposed here; Smart Product, Workflow Manager and Workflow Executor. These systems operate within Arrowhead Local Clouds and create a fully autonomous set of system to complete a production order. Planning, Supply chain and Quality of Service monitoring are out of scope and remain as centralized activities. The Smart Product is the core Cyber Physical System that must be context-aware in order to pass the correct Workflow information to the Workflow System responsible for current activities.

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