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  • 151.
    Alfthan, Frida
    Mälardalen University, School of Innovation, Design and Engineering.
    Ta på historien - inkluderande design på museum2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta arbete redogör för hur en stadshistorisk utställning kan utformas för att kommunicera sitt innehåll till målgruppen utrikes födda med bristande kunskaper i svenska. Undersökningen mål är att hitta riktlinjer som visualiserar ett koncept för denna typ av utställning. I undersökningen behandlas den lokalhistoriska utställningen ”Se Eskilstuna” på Eskilstuna stadsmuseum. Utställningen används idag som undervisningsmaterial för studenter från SFI; svenska för invandrare. Idag har utställningen brister som gör att den inte uppfyller den specifika målgruppens behov. Genom låg kontrast och struktur samt att den idag till stor del utgår från text, försvåras möjligheten att kommunicera sitt innehåll till målgruppen. I detta arbete diskuteras främst utställningens rumsliga formgivning, men även hur innehållet påverkar förståelsen för utställningen. Syftet med arbetet är att undersöka hur en utställning på bästa sätt kan förmedla information om platsen och platsens historia, utan att enbart förlita sig till kompletterande text-information. Detta för att underlätta för målgruppen att ta till sig innehållet. Med hjälp av tydligare struktur, och genom att skapa grupperingar och ett visuellt narrativ, skapas ökade förutsättningar för målgruppen att ta till sig utställningens innehåll. I undersökningen kombineras teorier om kognitiva processer, distribuerad kognition och affordans som vetenskaplig utgångspunkt. Genom kvalitativa metoder i form av fokusgrupp och öppen observation har en förståelse för målgruppen och dess behov skapats. Genom en platsanalys har brister i den existerande utställningsmiljön identifierats och en förståelse för rummet formulerats. Med stöd av litteratur och metodresultat har sedan ett designförslag skapats.

  • 152.
    Allander, Sofie
    Mälardalen University, School of Innovation, Design and Engineering.
    Litteratur och intervjustudie inom Green Production: Vad skiljer Lean Production från Green Production, hur uppfattas arbete med miljöförbättrande åtgärder och vilka problem kan uppstå vid implementering av ett grönt produktionssätt?2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Följande rapport är resultatet av det examensarbete som utförts våren 2011 inom innovativ produktion/logistik vid Mälardalens Högskola. Examensarbete behandlar ämnet Green Production med fokus på skillnader mellan ett produktionssystem som bygger på Lean Production och ett som bygger på Green Production. Områden som berörs i rapporten är de verktyg som används i de olika produktionssystemen, hur arbetet med miljöförbättrande åtgärder kan se ut i praktiken samt vilka svårigheter som finns vid arbete med miljöförbättrande åtgärder i ett företag. Examensarbetet består av en litteraturstudie där aktuell litteratur studerats inom området samt en intervjustudie som genomförts med insatta inom miljöfrågor kopplat till produktion samt operatörer.

    Bakgrunden till examensarbetet grundar sig i att världen står inför en framtid där många utav de råmaterial som används idag vid produktion inte kommer att kunna nyttjas i framtiden. Detta i kombination med de miljöproblem som människan åsamkat, har bidragit till att många företag insett att miljöaspekter måste vara i åtanke genom hela produktionsprocessen.

    Den uppfattning som erhållits genom intervjustudierna är att det är viktigt för ett företag att visa att de arbetar med miljöförbättrande åtgärder. Detta brukar oftast genomföras genom att företag arbetar utefter olika standarder och miljömål, till exempel ISO 14000. Nackdelen med denna typ av miljöarbete är att företag tenderar till att fastställa olika miljömål på en relativt låg nivå. Detta innebär att företag som utger sig för att arbeta miljötillvänt kanske inte gör det i slutändan. Slutsatsen utav detta är att många företag i många fall kan tycka att det är viktigt att visa att de arbetar med miljötillvända åtgärder, men kanske inte är villiga att investera i de insatser som krävs för att till fullo bli miljömässigt korrekta.

    Utifrån den litteraturstudie och intervjustudie som utförts i examensarbetet har det kunnat konstateras att Green Production är en relativt ung produktionsfilosofi med ett ostrukturerat arbetssätt i jämförelse med Lean Production. På grund utav detta har det uttryckts att företag i viss mån utformat sina egna metoder och egna verktyg för att bedriva ett miljöarbete. De mest markanta skillnaderna som upptäckts genom studierna för examensarbetet har varit att Lean Production till störst del fokuserar på själva produktionsprocessen, medan Green Production till större del fokuserar på in och utloppet i processen samt har i större mån ett livscykelperspektiv på produktionen. Insatta på området uttrycker att det finns vissa svårigheter i arbetet med miljöförbättrande åtgärder. Dessa svårigheter är kopplade till ekonomiaspekter i företag, okunskap inom ämnet samt att uppfattningen är att de miljömässiga fördelar som erhålls genom Lean Production är tillräckliga. Dessa aspekter medför att många företag agerar passivt inom området. För att avhjälpa detta krävs det att företag erhåller utbildning inom området, så att de inser vikten av ett miljötillvänt arbetssätt samt vilka fördelar som kan erhållas genom ett produktionssystem som bygger på Green. Det kan även vara en fördel om de miljöledningssystem samt lagar som existerar idag vore striktare och ställde krav på i vilken mån som miljömål skall uppnås.

  • 153.
    Allander, Sofie
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Sandberg, Robin
    Mälardalen University, School of Innovation, Design and Engineering.
    Open Innovation inom offentlig förvaltning2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Open Innovation är ett relativt nytt arbetssätt som innebär att organisationer tar in extern kunskap med syftet att utveckla interna processer och vidga den egna kompetensen. Studien utgår ifrån ett kvalitativt perspektiv där relevanta teorier hämtats ifrån tryckt litteratur, vetenskapliga artiklar samt empiri som består av en omvärldsanalys samt intervjustudie med ett antal individer med varierande kunskap inom områdena; Open Innovation samt medborgardialog kopplat till offentlig förvaltning. Det framkom i studien att faktorer som transparens, verktyg samt process är viktiga byggstenar i en Open Innovation-process. Utifrån studien har författarna tagit fram en metod som skall synliggöra hur de olika områdena samverkar med varandra och vilka verktyg som kan tillämpas i processen (se nedan). Författarna fann genom studien att hanteringen utav de idéer och förslag som hämtas från Open Innovation-processer är den viktigaste delen i processen. Utan en bra hantering utav förslagen tappar Open Innovation-processen sitt värde och förtroendet för förhållningssättet tappas.

  • 154.
    Alm, Alida
    Mälardalen University, School of Innovation, Design and Engineering.
    Lättillgänglig bostadsinformation på webben: En undersökning om hur lättillgänglig bostadsinformation för webben skrivs utan att viktig information försvinner.2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This is a thesis in information design with the emphasis on textual design. The purpose of this assignment is to investigate how to best write residential information for the web, which is accessible, without having to delete any important information. The goal is to create accessible texts with residential information, which can replace the original texts in a suitable way. Bostads AB Mimer’s (a land lord company) residential information has been analysed and investigated through a readability analysis, an interview and a questionnaire. The interview was held with Mimer’s head of communications and the purpose was to find out what Mimer wants to convey with their website and too whom. The study shows that the information on Mimer’s website has to be improved. The texts address the reader as you and themselves as we or us but not in a consequent way. Some entities are not explained enough and information directed too the residents and too those who are searching for an apartment, is mixed.

  • 155.
    Alm, Lisa
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Birgersson, Patrik
    Mälardalen University, School of Innovation, Design and Engineering.
    Kommunikation & Utveckling inom proAros2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Problem:

    proAros har en idébank som är framarbetad av utvecklingsenheten för att främja idégenerering och nytänkande inom organisationen. Problemet är att idébanken inte används av de anställda. Hemsidan har blivit marknadsförd, men ändå verkar ingen använda sidan för att lämna sina idéer. Under studien framkommer det att många av de anställda inte vet om idébankens existens och att en bristande kommunikation råder inom hela organisationen.

    Syfte:

    Syftet med denna uppsats är att få svar på frågan varför idébanken inte används av de anställda inom proAros samt hur man kan lösa de kommunikativa hinder som uppstår vid informationsspridning inom organisationen.

    Metod:

    De metoder som används i denna uppsats är dels kvalitativa intervjuer men även kvantitativa enkätundersökningar bland anställda inom proAros. Blandningen av djupgående intervjuer och enkäter har sedan lett till slutresultatet. Vi har även använt oss av benchmarking, då vi besökt en annan organisation och där intervjuat en person, för att sedan jämföra deras system med proAros eget.

    Slutsats:

    proAros intranät är en databas som ska användas och vara tillgänglig för alla anställda inom proAros organisation, även idébanken ligger i anslutning till intranätet och nås via intranätets förstasida. Vår studie har visat att alla anställda inte har tillgång till intranätet samt att både intranätet och idébanken trots sin enkelhet kan vara svåra att manövrera. De anställda inom organisationen har heller inget behov av att använda sig av intranätet eller idébanken i sitt dagliga arbete. Vår slutsats är att för att få ett fungerande intranät och en fungerande idébank måste ett behov skapas hos de anställda för att i sitt vardagliga arbete besöka både intranätet och idébanken.

    Slutsatsen i praktiken:

    proAros ledare kan använda sig av de slutsatser som framkommit i uppsatsen för att förbättra och utveckla idébanken samt kommunikationen i organisationen.

  • 156.
    Almeida, Luis
    et al.
    University of Porto, Portugal.
    Behnam, Moris
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Pedreiras, Paulo
    University of Aveiro, Portugal.
    Managing end-to-end resource reservations2014In: 7th International Workshop on Compositional Theory and Technology for Real-Time Embedded Systems CRTS'14, 2014Conference paper (Refereed)
  • 157.
    Almers, Fredrik
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Morrissey, Miguel
    Mälardalen University, School of Innovation, Design and Engineering.
    Kåpning till brandspaningsrobot FUMO 32013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta projekt har utförts på en 10 veckors period och ligger på C-nivå (15högskolepoäng). Projektet gick ut på att ta fram ett kåpningsförslag för FUMO 3. Under denna period har de första 6 veckorna bestått av konceptframtagning och bearbetning av koncept, och de sista 4 av själva prototypframtagningen. Metoderna som använts för idégenerering och konceptframtagning har varit diverse produktutvecklingsverktyg. Då många ändringar och korrigeringar gjordes framför allt gällande basplatta, IP-lådor och externa enheter ganska sent in i projektet kunde gruppen inte fastställa ett konceptförslag förrän närmare slutet av arbetet med detta projekt. Prototypframtagningsprocessen utfördes genom bockning med maskin och för hands samt hopsättning genom popnitning. Mallar för utklippta plåtbitar togs fram genom CAD-ritningar som sedan ritadesut på pappskivor, som sedan provades på roboten i förväg. Då arbetet med prototypframtagningen gjordes i största mån för hand så lämnade gruppen utrymme för felpassningar som kunde uppstå på grund av felklippta plåtar, felaktiga bockningskanter och radier, skissnoggrannhet och annat orsakat av den mänskliga faktorn. Som slutsats ser vi oss ändå nöjda med att ha uppflyllt kraven under den tid som var utsatt.

  • 158.
    Almqvist, Linda
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Groth, Lina
    Mälardalen University, School of Innovation, Design and Engineering.
    "Gneta på...": Hur bör en politiskt styrd organisation agera för att inte påverkas av förändrade förutsättningar? 2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    It’s of great importance to implant innovation in organisations that act in an influenced and changeable environment. An organisation that’s affected by for example political decisions has a bigger challenge facing this. We also see that organisations within the service sector and mainly services that occur close to people have a more difficult task when it comes to the subject innovation. There is a limit in efficiency and development within organisations who acts in this area. Because the world always changes we think that organisations always need to face this to be able to deliver, and then it’s important that service companies are aware of the importance of innovation. Innovation within organising need not mean a whole new way of organising, but it can point out knowledge and its flow in the company. Even new ways of thinking who permeates an organisation can be the start of implanting a more innovative environment. We believe that a more proactive action can gain organisations development and efficiency. By this we mean that organisations can work more with their visions of the future and work more active with predicting the future and what it can offer. This can in turn gain implanting of innovation in companies.

  • 159.
    Almén, Elias
    Mälardalen University, School of Innovation, Design and Engineering.
    Man får vad man betalar för: Ett arbete i hur visuell information bör matcha ett varumärkes budskap2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This project has been done in cooperation with Etteplan. Etteplan has requested a user manual that sends a specific message: premium.In this project, attention has been focused on the visual design of a user manual and its importance to the brand. Brand theory, messages, gesture theories, pop out effects, information structure, paper quality and technical illustration have been studied to investigate how this can be designed to reach the premium feeling. In order to gain empirical data, interviews and world-wide analysis have been used. From the results of the world-wide analysis, the work has been able to systematically analyze how other actors visualize their user user manuals. Furthermore, the work, based on the results of theory and empirical data, has produced prototypes. These prototypes have been evaluated and developed and presented in the draft proposal.Creating something that is experienced as a premium is a challenge. It is not possible to point out where exactly the premium feeling comes from. It is a sum of all signals that a brand sends to the buyer. Everything from customer service, quality, price, staffing, visual profile, environmental profile and, for example, an instruction manual. In my role as information designer, my ambition has been to, create new guidelines for how a premium quality manual should be visualized.

  • 160.
    Alnestig, Henrik
    Mälardalen University, School of Innovation, Design and Engineering.
    On the Feasibility of Low Cost Computer Vision: Building and Testing SimpleEye2014Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    This thesis explores a novel approach to the computer vision eld in the form of lowcost computer vision intended for industrial use. The system proposed in this thesis, calledSimpleEye, is implemented and tested against an existing system. Dierent approachesto object detection and data extraction from a scene, as well as common applications ofcomputer vision in the industry, are examined. Three algorithms are implemented, aimedat dierent industrial applications. These are two types of object recognition, using CannyEdge detection and connected-component labeling, as well as barcode scanning. The tests,each targeting one of the implemented approaches, show promising results for low costcomputer vision. While the system is expectedly lacking in speed, it has no diculties inachieving good result in applications which are not highly time critical. SimpleEye yieldedaccuracy and precision comparable to commercial systems, with parts costing approximately100 USD. The tests show that the system is able to function in several computer visionapplications used today, including visual servoing, blob detection, blob tracking, and barcodescanning.

  • 161.
    Alorda, B.
    et al.
    Electronic System Group, Illes Balears University, Spain .
    Pujol-Nadal, R.
    Physics Department, Illes Balears University, Spain.
    Rodriguez-Navas, G.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. Mathematics and Computer Science Dept, Illes Balears University, Spain .
    Moià-Pol, A.
    Physics Department, Illes Balears University, Spain .
    Martínez-Moll, V.
    Physics Department, Illes Balears University, Spain .
    Collaborative distributed sun-tracking control system for building integration with minimal plant area and maximum energy-conversion efficiency2015In: International Journal of Electrical Power & Energy Systems, ISSN 0142-0615, E-ISSN 1879-3517, Vol. 70, 52-60 p.Article in journal (Refereed)
    Abstract [en]

    This paper presents a collaborative distributed sun-tracking control system for a novel Fixed Mirror Solar Concentrator (FMSC) structure, which increases the energy-conversion efficiency of the FMSC and reduces the space between solar collectors units, a positive aspect for in-building integration. The improved FMSC uses solar concentration collectors suited for mid-range thermal applications (90-200 °C) and is designed for easy installation in buildings because of its relatively small extension. The proposed solar orientation system (ORSYS) relies on a two-step algorithm to increase the energy captured by the receiver, which provides tolerance to common logical and mechanical errors in the estimation of the receiver position. ORSYS is implemented as a CAN-based distributed system, extended with web-interface features for supervision and configuration of the overall system. ORSYS also includes a coordination algorithm that allows adjacent collectors to share the physical space between them, thus reducing the total plant area. Experimental evaluation has been performed using an industrial-scale solar collector prototype, showing its feasibility and efficiency in terms of energy conversion in real environments.

  • 162.
    Alqaysi, Mustafa
    Mälardalen University, School of Innovation, Design and Engineering.
    Hangar of the future - digital scanning & analysis2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This final thesis is made by a student at Mälardalens högskola in Västerås from the academy of Innovation, Design and Engineering. This report examines the possibility of upgrading and modernizing current aircraft maintenance hangars by using the latest technologies.

     

    Aircraft maintenance is essential to keep aircraft’s continuing airworthiness, and making sure it’s always declared fit for flight. But the maintenance procedures in hangars today can be seen as a bit old-fashioned. This report is therefore aiming to explore the possibilities of building the hangar of the future, where the latest technologies is used for an easier, more accurate and faster maintenance. A big problem that this project could solve in case that it could be a reality is damage assessment. In flight industry is it a bit tricky to assess a damage that had happened to an aircraft with the current methods that are used in today’s maintenance hangars. Taking measures for damages isn’t easy, and it’s even harder to look into the Structure Repair Manual (SRM) in theory and follow it in reality to assess the damage. It is something that technicians and engineers suffer from, because of the big responsibility that it withholds.

     

    In the process of writing this thesis, and with the help of literature studies, an interview with the SAS engineer Anders Dalén, researches about the subject and the term of HOF at other companies the purpose of this thesis was reached. Which is exploring if HOF can be a reality in the near future. As for the technology of the project, it could be explained as a process or a chain that contains some steps. The idea is that an aircraft would roll into the hangar and get scanned by a stationary 3D scanner that is placed in the top of the hangar entrance. The data that the scanner later sends into a computer system gets processed by two or more programs in order to detect possible damage. If damage is found, then it would get measured with a portable 3D scanner. The analyzing programs would process its data and give an assessment on the damage, and also suggestions for reparations.

     

    The conclusion for this thesis is that it is, in theory, possible that “Hangar of the future” can be a reality in the future. Because the technologies that is required for it do exist in our time, though they exist in other forms/ branches.

  • 163.
    Al-Rawi, M. S.
    et al.
    Departamento de Eletrónica, Telecomunicações e Informática (DETI), Universidade de Aveiro, Aveiro, Portugal.
    Galdrán, A.
    Departamento de Eletrónica, Telecomunicações e Informática (DETI), Universidade de Aveiro, Aveiro, Portugal.
    Yuan, X.
    Research Center on Software Technologies and Multimedia Systems for Sustainability (CITSEM), Universidad Politécnica de Madrid, Spain.
    Eckert, M.
    Research Center on Software Technologies and Multimedia Systems for Sustainability (CITSEM), Universidad Politécnica de Madrid, Spain.
    Martínez, J. -F
    Research Center on Software Technologies and Multimedia Systems for Sustainability (CITSEM), Universidad Politécnica de Madrid, Spain.
    Elmgren, Fredrik
    DeepVision AB, Linköping, Sweden.
    Curuklu, Baran
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Rodriguez, J.
    Departamento de Eletrónica, Telecomunicações e Informática (DETI), Universidade de Aveiro, Aveiro, Portugal.
    Bastos, J.
    Instituto de Telecomunicações, Pólo de Aveiro, Aveiro, Portugal.
    Pinto, M.
    ECA Robotics, La Garde, France.
    Intensity normalization of sidescan sonar imagery2016In: 2016 6th International Conference on Image Processing Theory, Tools and Applications, IPTA 2016, 2016, 7820967Conference paper (Refereed)
    Abstract [en]

    Sonar imaging is currently the exemplary choice used in underwater imaging. However, since sound signals are absorbed by water, an image acquired by a sonar will have gradient illumination; thus, underwater maps will be difficult to process. In this work, we investigated this phenomenon with the objective to propose methods to normalize the images with regard to illumination. We propose to use MIxed exponential Regression Analysis (MIRA) estimated from each image that requires normalization. Two sidescan sonars have been used to capture the seabed in Lake Vattern in Sweden in two opposite directions west-east and east-west; hence, the task is extremely difficult due to differences in the acoustic shadows. Using the structural similarity index, we performed similarity analyses between corresponding regions extracted from the sonar images. Results showed that MIRA has superior normalization performance. This work has been carried out as part of the SWARMs project (http://www.swarms.eu/).

  • 164.
    Alt, Mattheus
    Mälardalen University, School of Innovation, Design and Engineering.
    Battery Connector - Examensarbete, Produktutveckling - konstruktion2013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Examensarbetet är utfört inom produktutveckling – konstruktion och omfattar 15 högskolepoäng. Arbetet utfördes på halvtid under perioden januari – juni 2013. Examensarbetet utfördes för       OJOP Sweden AB i Eskilstuna av en student på Mälardalens Högskola. Examensarbetet startades den 6/1 – 2013 vid ett uppstartsmöte då uppdraget togs emot av OJOP Sweden AB´s ägare Anders Larsson. Uppdraget var att konstruera om eller konstruera en produkt med samma huvudegenskaper som företagets batterikontakt QuickPower. Detta för att reducera tillverkningskostnaderna som upplevdes för höga från företagets sida. Definitionen av problemet gjordes genom att undersöka den befintliga produkten och dess konkurrenter men också andra föremål som fäster på olika sätt. Undersökningarna resulterade i kunskap om hur problemet tidigare lösts och gav inspiration till en mängd idéer som bearbetades mentalt vilket ledde till skisser.  De olika skisserna sågs redan från början som potentiella koncept och redovisades för OJOP Sweden AB som fick utrymme att ge respons på koncepten. Ett koncept som innan redovisningen visat sig vara det bästa i både Pugh´s matris och QFD valdes gemensamt ut och fortsattes med. Det gjordes en enkel prototyp av det framtagna konceptet vilket bevisade en mycket bra funktionsduglighet. Med detta noterat och testat gjordes CAD-modeller som utgick ifrån prototypens dimensioner. Den slutgiltiga konstruktionen består av 6 (gånger två) komponenter, en huvudkomponent (spiralfäste), en kabelplatta, två plastkåpor och två skruvar. Dessa bearbetas på olika sätt och monteras samman för att vara redo att användas när kunden plockar dessa ur förpackningen. I jämförelse med den nuvarande produkten QuickPower håller sig resultatet på en nivå som matchar QP. En nackdel är att den inte fäster lika hårt som QP men resultatets enkla användning och resursbesparing höjer produkten.

  • 165.
    Altenbernd, Peter
    et al.
    University of Applied Sciences Darmstadt, Germany.
    Ermedahl, Andreas
    Mälardalen University, School of Innovation, Design and Engineering.
    Lisper, Björn
    Mälardalen University, School of Innovation, Design and Engineering.
    Gustafsson, Jan
    Mälardalen University, School of Innovation, Design and Engineering.
    Automatic Generation of Timing Models for Timing Analysis of High-Level Code2011In: 19th International Conference on Real-Time and Network Systems (RTNS2011), 2011Conference paper (Refereed)
    Abstract [en]

    Traditional timing analysis is applied only in the late stages of embedded system software development, when the hardware is available and the code is compiled and linked. However, preliminary timing estimates are often needed already in early stages of system development, both for hard and soft real-time systems. If the hardware is not yet fully accessible, or the code is not yet ready to compile or link, then the timing estimation must be done for the source code rather than for the binary. This paper describes how source-level timing models can be derived automatically for given combinations of hardware architecture and compiler. The models are identified from measured execution times for a set of synthetic "training programs" compiled for the hardware platform in question. The models can be used to derive source-level WCET estimates, as well as for estimating the execution times for single program runs. Our experiments indicate that the models can predict the execution times of the final, compiled code with a deviation up to 20%.

  • 166.
    Altenbernd, Peter
    et al.
    University of Applied Sciences, Germany.
    Gustafsson, Jan
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Lisper, Björn
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Stappert, Friedhelm
    Siemens VDO Automotive AG, Germany.
    Early execution time-estimation through automatically generated timing models2016In: Real-time systems, ISSN 0922-6443, E-ISSN 1573-1383, Vol. 52, no 6, 731-760 p.Article in journal (Refereed)
    Abstract [en]

    Traditional timing analysis, such as worst-case execution time analysis, is normally applied only in the late stages of embedded system software development, when the hardware is available and the code is compiled and linked. However, preliminary timing estimates are often needed in early stages of system development as an essential prerequisite for the configuration of the hardware setup and dimensioning of the system. During this phase the hardware is often not available, and the code might not be ready to link. This article describes an approach to predict the execution time of software through an early, source-level timing analysis. A timing model for source code is automatically derived from a given combination of hardware architecture and compiler. The model is identified from measured execution times for a set of synthetic training programs, compiled for the hardware platform in question. It can be used to estimate the execution time for code running on the platform: the estimation is then done directly from the source code, without compiling and running it. Our experiments show that, using this model, we can predict the execution times of the final, compiled code surprisingly well. For instance, we achieve an average deviation of 8 % for a set of benchmark programs for the ARM7 architecture.

  • 167.
    Altmeyer, S.
    et al.
    University of Luxembourg.
    Lisper, Björn
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Maiza, C.
    Université Grenoble Alpes, Verimag, France.
    Reineke, J.
    Saarland University, Germany.
    Rochange, C.
    University of Toulouse, France.
    WCET and mixed-criticality: What does confidence in WCET estimations depend upon?2015In: OpenAccess Series in Informatics, 2015, 65-74 p.Conference paper (Refereed)
    Abstract [en]

    Mixed-criticality systems integrate components of different criticality. Different criticality levels require different levels of confidence in the correct behavior of a component. One aspect of correctness is timing. Confidence in worst-case execution time (WCET) estimates depends on the process by which they have been obtained. A somewhat naive view is that static WCET analyses determines safe bounds in which we can have absolute confidence, while measurement-based approaches are inherently unreliable. In this paper, we refine this view by exploring sources of doubt in the correctness of both static and measurement-based WCET analysis.

  • 168.
    Altmeyer, Sebastian
    et al.
    Saarland University.
    Lisper, Björn
    Mälardalen University, School of Innovation, Design and Engineering.
    Hümbert, Christian
    AbsInt GmbH, Saarbrücken, Germany .
    Wilhelm, Reinhard
    Saarland University.
    Parametric timing analysis for complex architectures2008In: Proceedings - 14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2008, 2008, 367-376 p.Conference paper (Refereed)
    Abstract [en]

    Hard real-time systems have stringent timing constraints expressed in units of time. To ensure that a task finishes within its time-frame, the designer of such a system must be able to derive upper bounds on the task's worst-case execution time (WCET). To compute such upper bounds, timing analyses are used. These analyses require that information such as bounds on the maximum numbers of loop iterations are known statically, i.e. during design time. Parametric timing analysis softens these requirements: it yields symbolic formulas instead of single numeric values representing the upper bound on the task's execution time.

    In this paper, we present a new parametric timing analysis that is able to derive safe and precise results. Our method determines what the parameters of the program are, constructs parametric loop bounds, takes processor behaviour into account and attains a formula automatically. In the end, we present tests to show that the precision and runtime of our analysis are very close to those of numeric timing analysis.

  • 169.
    Amaral, Vasco
    et al.
    Universidade Nova de Lisboa, Portugal.
    Cicchetti, Antonio
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.
    Deshayes, Romuald
    Université de Mons-Hainaut, Belgium .
    A Multiparadigm Approach to Integrate Gestures and Sound in the Modeling Framework2013In: CEUR Workshop Proceedings, Vol. 112, 2013, 57-66 p.Conference paper (Refereed)
    Abstract [en]

    One of the essential means of supporting Human-MachineInteraction is a (software) language, exploited to input commands andreceive corresponding outputs in a well-dened manner. In the past,language creation and customization used to be accessible to softwaredevelopers only. But today, as software applications gain more ubiquity,these features tend to be more accessible to application users themselves.However, current language development techniques are still based on tra-ditional concepts of human-machine interaction, i.e. manipulating textand/or diagrams by means of more or less sophisticated keypads (e.g.mouse and keyboard).In this paper we propose to enhance the typical approach for dealing withlanguage intensive applications by widening available human-machine in-teractions to multiple modalities, including sounds, gestures, and theircombination. In particular, we adopt a Multi-Paradigm Modelling ap-proach in which the forms of interaction can be specied by means ofappropriate modelling techniques. The aim is to provide a more advancedhuman-machine interaction support for language intensive applications.

  • 170.
    Ameerjan, Sharvathul Hasan
    Mälardalen University, School of Innovation, Design and Engineering.
    Predicting and Estimating Execution Time of Manual Test Cases - A Case Study in Railway Domain2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Testing plays a vital role in the software development life cycle by verifying and validating the software's quality. Since software testing is considered as an expensive activity and due to thelimitations of budget and resources, it is necessary to know the execution time of the test cases for an efficient planning of test-related activities such as test scheduling, prioritizing test cases and monitoring the test progress. In this thesis, an approach is proposed to predict and estimate the execution time of manual test cases written in English natural language. The method uses test specifications and historical data that are available from previously executed test cases. Our approach works by obtaining timing information from each and every step of previously executed test cases. The collected data is used to estimate the execution time for non-executed test cases by mapping them using text from their test specifications. Using natural language processing, texts are extracted from the test specification document and mapped with the obtained timing information. After estimating the time from this mapping, a linear regression analysis is used to predict the execution time of non-executed test cases. A case study has been conducted in Bombardier Transportation (BT) where the proposed method is implemented and the results are validated. The obtained results show that the predicted execution time of studied test cases are close to their actual execution time.

  • 171.
    Ameri E., Afshin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Akan, Batu
    Mälardalen University, School of Innovation, Design and Engineering.
    Çürüklü, Baran
    Mälardalen University, School of Innovation, Design and Engineering.
    Incremental Multimodal Interface for Human-Robot Interaction2010In: Proceedings of the 15th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2010, 2010, Art.nr. 5641234- p.Conference paper (Refereed)
    Abstract [en]

    Face-to-face human communication is a multimodal and incremental process. An intelligent robot that operates in close relation with humans should have the ability to communicate with its human colleagues in such manner. The process of understanding and responding to multimodal inputs has been an interesting field of research and resulted in advancements in areas such as syntactic and semantic analysis, modality fusion and dialogue management. Some approaches in syntactic and semantic analysis take incremental nature of human interaction into account. Our goal is to unify syntactic/semantic analysis, modality fusion and dialogue management processes into an incremental multimodal interaction manager. We believe that this approach will lead to a more robust system which can perform faster than today's systems.

  • 172.
    Ameri E., Afshin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Akan, Batu
    Mälardalen University, School of Innovation, Design and Engineering.
    Çürüklü, Baran
    Mälardalen University, School of Innovation, Design and Engineering.
    Asplund, Lars
    Mälardalen University, School of Innovation, Design and Engineering.
    A General Framework for Incremental Processing of Multimodal Inputs2011In: Proceedings of the 13th international conference on multimodal interfaces, New York: ACM Press, 2011, 225-228 p.Conference paper (Refereed)
    Abstract [en]

    Humans employ different information channels (modalities) such as speech, pictures and gestures in their commu- nication. It is believed that some of these modalities are more error-prone to some specific type of data and therefore multimodality can help to reduce ambiguities in the interaction. There have been numerous efforts in implementing multimodal interfaces for computers and robots. Yet, there is no general standard framework for developing them. In this paper we propose a general framework for implementing multimodal interfaces. It is designed to perform natural language understanding, multi- modal integration and semantic analysis with an incremental pipeline and includes a multimodal grammar language, which is used for multimodal presentation and semantic meaning generation.

  • 173.
    Ameri E., Afshin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. IS (Embedded Systems).
    Larsson, Thomas
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. IS (Embedded Systems).
    Towards Full-Scale Ray Tracing in Games2016In: Proceedings of SIGRAD 2016, Visby, Sweden, 2016, Vol. 127, 48-49 p., 009Conference paper (Refereed)
    Abstract [en]

    We discuss the current status when it comes to real-time ray tracing of games as a full-scale alternative to renderers based on rasterization. Modern games include massive geometry, beautiful graphics, and advanced rendering effects, and still, they run with a high and steady frame rate at high resolutions. We argue that to make ray tracing a viable option, significant further development is required in terms of improved algorithms and software libraries, as well as hardware innovations that will greatly benefit the average gamer’s hardware equipment.

  • 174.
    Ameri Ekhtiarabadi, Afshin
    Mälardalen University, School of Innovation, Design and Engineering.
    Unified Incremental Multimodal Interface for Human-Robot Interaction2011Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Face-to-face human communication is a multimodal and incremental process. Humans employ  different information channels (modalities) for their communication. Since some of these modalities are more error-prone to specic type of data, a multimodal communication can benefit from strengths of each modality and therefore reduce ambiguities during the interaction. Such interfaces can be applied to intelligent robots who operate in close relation with humans. With this approach, robots can communicate with their human colleagues in the same way they communicate with each other, thus leading to an easier and more robust human-robot interaction (HRI).In this work we suggest a new method for implementing multimodal interfaces in HRI domain and present the method employed on an industrial robot. We show that operating the system is made easier by using this interface.

  • 175.
    Amin, Rebin
    Mälardalen University, School of Innovation, Design and Engineering.
    Tool for Risk Evaluation2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • 176.
    Amro, Adib
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Öberg Sjöstrand, Billy
    För- och nackdelar med att förlänga/förkorta flygets underhållsintervaller2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Aircraft maintenance within the aviation industry is an essential part as the purpose is to maintain the aircrafts built-in security and reliability levels. Aircraft require approved and straightforward maintenance to ensure safe operation and airworthiness. The maintenance program's intention is to ensure that a function operates properly despite an uncertain environment. During flights, aircraft are exposed to a large number of loads, which causes components and parts to be affected negatively. Because of this, a maintenance program is presented, the program tries to constantly detect and correct any potential errors before a functional error occurs.

    This degree project is about finding out about the pros and cons of extending or shortening the maintenance interval within the aircraft maintenance program. In addition, the purpose is to draw conclusions about how airline, aircraft turbine performance and age are related to extension or shortening of this maintenance interval. The dissertation was written at the Academy of Innovation, Design and Technology at Mälardalens högskola, Västerås.

    The work process was carried out in several steps. The first step was to deepen the knowledge within the field and understand the maintenance program. This was done through literature studies and information gathering on the subject. The second step was to analyze and process the general information and answers from the interview questions. The work included the advantages and disadvantages caused by extension or shortening of maintenance intervals without affecting the reliability that maintenance requirements ensure. 

  • 177.
    Amsih, Nancy
    Mälardalen University, School of Innovation, Design and Engineering.
    Sambandet mellan self-efficacy och kreativitet: En teoretisk studie2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Creativity has great influence on society, organisations and individuals. On the basis of behavioristic principles, such as the ones on learning, this study has treated creativity as an opportunity that can be developed by the individual. Self-efficacy, which implies the belief that one is capable of performing in a certain situation, is one of many bricks that help creativity form itself in its special manner. This study has a focus on self-efficacy and those theories that self-efficacy has emerged from, and on creativity. The purpose was to, with help of a literature-study, discuss whether self-efficacy can have a helping hand as well as a damaging effect in the creative activity. Further along the report has shown that the relation between all concepts is a clearly appearing, which has led to an account on how nearly associated they are.  

  • 178.
    Anderberg, Roxanne
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Holm, Rickard
    Mälardalen University, School of Innovation, Design and Engineering.
    Simplified sensor system for an intelligent robotic gripper2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis presents an intelligent gripper (IPA gripper) with a consumer available pre-touch system that can be used for detecting and grasping an unknown object. The paper also proposes a method of using indirect force control with object movement as feedback, named OMFG (Object Motion Focused Grasping). Together with OMFG and the pre-touch system, the gripper can detect and prevent slippage. During the course of this master thesis an iterative design methodology has been used to develop a design. The design has been tested with quantitative and qualitative experiments to verify the quality of the IPA gripper and to validate the hypothesis of this master thesis.

  • 179.
    Anderbrink, Alexandra
    Mälardalen University, School of Innovation, Design and Engineering.
    Det blir som det blir - Vi har inte tid att planera!: En studie om att utveckla Kolmårdens djurparks befintliga zooapplikation och dess användbarhet och skapa ett praktiskt planeringsverktyg2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 180.
    Andersen, Ann-Louise
    et al.
    Aalborg Univ, Denmark.
    Rosio, Carin
    Jönköping Univ, Jönköping, Sweden.
    Bruch, Jessica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Jackson, Mats
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Reconfigurable Manufacturing - An Enabler for a Production System Portfolio Approach2016In: Procedia CIRP, 2016, Vol. 52, 139-144 p.Conference paper (Refereed)
    Abstract [en]

    The purpose of this paper is to investigate how the development of a strategically integrated product and production system portfolio could be enabled by the concept of reconfigurable manufacturing. In previous research, several critical challenges related to developing production system portfolios have been identified, but it has not been investigated how developing a reconfigurable manufacturing concept could aid some of these. Therefore, through a multiple case study, these critical challenges have been investigated in two companies that have recently developed reconfigurable manufacturing concepts for multiple variants and generations of products. The findings reveal that the companies need to deal with several challenges in order to enable a functioning RMS. By running the project separately from the NPD project and to include several product types and production sites the company overcome several challenges. (C) 2016 The Authors. Published by Elsevier B.V.

  • 181.
    Andersson, Alf
    et al.
    Volvo Car Corporation Manufacturing Engineering.
    Erdem, Ilker
    Chalmers University of Technology.
    Funk, Peter
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. IS (Embedded Systems).
    Rahman, Hamidur
    Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. IS (Embedded Systems).
    Kihlman, Henrik
    ProdTex.
    Bengtsson, Kristofer
    Chalmers University of Technology.
    Falkman, Petter
    Chalmers University of Technology.
    Torstensson, Johan
    Fraunhofer-Chalmers Centre.
    Carlsson, Johan
    Fraunhofer-Chalmers Centre.
    Scheffler, Michael
    Carl Zeiss Automated Inspection GmbH & Co.
    Bauer, Stefan
    Carl Zeiss Automated Inspection GmbH & Co.
    Paul, Joachim
    Carl Zeiss Automated Inspection GmbH & Co.
    Lindkvist, Lars
    Chalmers University of Technology.
    Nyqvist, Per
    Chalmers University of Technology.
    Inline Process Control – a concept study of efficient in-line process control and process adjustment with respect to product geometry2016In: Swedish Production Symposium 2016 SPS 2016, Lund, Sweden, 2016Conference paper (Refereed)
    Abstract [en]

    All manufacturing processes have variation which may violate the fulfillment of assembly, functional, geometrical or esthetical requirements and difficulties to reach desired form in all areas. The cost for geometry defects rises downstream in the process chain. Therefore, it is vital to discover these defects as soon as they appear. Then adjustments can be done in the process without losing products or time. In order to find a solution for this, a project with the overall scope “development of an intelligent process control system” has been initiated. This project consists of five different work packages: Inline measurement, Process Evaluation, Corrective actions, Flexible tooling and demonstrator cell. These work packages address different areas which are necessary to fulfill the overall scope of the project. The system shall both be able to detect geometrical defects, propose adjustments and adjust simple process parameters. The results are demonstrated in a demo cell located at Chalmers University of Technology. In the demonstrator all the different areas have been verified in an industrial case study – assembly of GOR Volvo S80. Efficient offline programming for robot based measurement, efficient process evaluation based on case base reasoning (CBR) methodology, flexible fixtures and process adjustments based on corrective actions regarding in going part positioning.

  • 182.
    Andersson, Anna
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Bousquet, Anna
    Mälardalen University, School of Innovation, Design and Engineering.
    Bestickställ för ultraljudstvätt2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This was a product development project performed for AB Gense, a cutlery manufacturer in Eskilstuna. Between different operations during production the work material needs to be cleaned in an alkaline ultrasonic cleaner. The work materials are placed in a cutlery basket where they are in contact with each other. Due to this not all work materials are clean enough after the cleaning which leads to extra work for the operators. The purpose of this project was to develop a new cutlery basket in order to achieve a higher number of clean work materials.

     

    The main focus of the project was to develop a cutlery basket suitable for use in an ultrasonic cleaner. The project was based on the principals of the product development process. Interviews and observations were used in order to gather information about the problem. A number of concepts was developed and evaluated theoretically as well as practically together with the company.

     

    One concept was selected for further development. Plastic was chosen as material for the concept and 3D-printing for manufacturing since only a few baskets were to be produced.

     

    The result was a concept of a cutlery basket consisting of a base with removable supports for the work materials. The support comes in two different heights and has dents on the top in order to separate the work materials. A FEM-analysis was made in order to analyze the impact of the loads on the cutlery basket.

     

    It is hard to estimate to which degree the purpose was fulfilled due to the fact that no working prototype has been produced and tested. However the cutlery basket will probably give better results since the work materials are separated during the cleaning process. 

  • 183.
    Andersson, Anna
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Johansson, Kornelia
    Mälardalen University, School of Innovation, Design and Engineering.
    Flens kommun - möjligheternas kommun2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Färdplan Flen är ett utvecklingsprojekt som drivs av Flens kommun och beräknas vara klart år2019. Den negativa utvecklingen inom kommunen med ett allt mer sjunkande befolkningsantal som i sin tur genererar mindra skatteintäkter har gjort att Färdplan Flen inrättats. I projektet ligger ett antal delprojekt som bland annat handlar om ortsutveckling och där har kommunen redan börjat arbeta med Malmköping som ett första steg. Ett annat delprojekt är Flen 2019 som handlar om att Flens kommun 2012 ska vara klara med en vision som kommer att arbetas fram under 2011 och vara verkställd 2019.I dagsläget arbetas det också på att skapa mer delaktighet mot invånarna och de anställda inom kommunen. Färdplan Flen är intresserad av Open Space och ska utföra workshops med detta tema för att få in invånarnas åsikter. Färdplan Flen är helt enkelt ett stort utvecklingsprojekt och här har vi fått en chans till att använda våra kunskaper för att hjälpa Färdplan Flen och Flens kommun i rätt riktning mot en innovativ kommun.

  • 184.
    Andersson, Carin
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Bellgran, Monica
    Mälardalen University, School of Innovation, Design and Engineering.
    Implementation and use of OEE as a production performance measure2011In: Proceedings of the 4th Swedish Production Symposium, May 3-5th, Lund, 2011, Lund University, Sweden., 2011Conference paper (Refereed)
  • 185.
    Andersson, Carin
    et al.
    Lund University.
    Bellgran, Monica
    Mälardalen University, School of Innovation, Design and Engineering.
    Managing Production Performance with Overall Equipment Efficiency (OEE) - Implementation Issues and Common Pitfalls2011In: Proceedings of the 44th Conference on Manufacturing Systems (CIRP), Wisconsin, US, 2011Conference paper (Refereed)
    Abstract [en]

    In the current global competitive environment it is of immense importance for manufacturing companies tokeep track of, and improve the production performance of their production systems. One of the most widelyused performance measures is OEE, a powerful tool for production development if used correctly. Based ona theoretical analysis and a case study within a manufacturing company in the automotive industrychallenges associated with the implementation of OEE are identified and analyzed. Furthermore, the paperpresents conclusions of how to utilize the OEE measure for efficient management of improvement inproduction performance.

  • 186.
    Andersson, Carin
    et al.
    Lund University.
    Bellgran, Monica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Bruch, Jessica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Rösiö, Carin
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Wiktorsson, Magnus
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    Windmark, Christina
    Lund University.
    Production Location Handbook: Forming Your Strategic Manufacturing Footprint2013Report (Other academic)
  • 187.
    Andersson, Carin H.
    et al.
    Lund University, Lund, Sweden.
    Bellgran, Monica
    Mälardalen University, School of Innovation, Design and Engineering, Innovation and Product Realisation.
    On the complexity of using performance measures: Enhancing sustained production improvement capability by combining OEE and productivity2015In: Journal of manufacturing systems, ISSN 0278-6125, Vol. 35, 144-154 p.Article in journal (Refereed)
    Abstract [en]

    The global speed of change within the manufacturing industry forces companies to constantly improve production performance. In that effort, performance measures are critical for driving and managing production improvements. Two of the most commonly used measures in operations are productivity and overall equipment efficiency (OEE). However, the potential of using these measures as improvement drivers is not fully utilized in industry today due, for example, to ambiguities in definitions and their interpretation. A study of available theory indicates a gap between these implications from a theoretical perspective vs. the industrial perspective. Bridging this theory-practice gap implies great potential for competitiveness and growth in manufacturing, since the latent production capacity that could be utilized is tremendous. Even if a high degree of complexity in definition and calculation when applied in operational conditions might be perceived, this paper will show that a systematically used combined set of OEE and productivity measures can successfully drive production improvements. Also, two new productivity measures for driving improvements at the shop floor level are proposed. The empirical findings are based on a two-year case study within a manufacturing company in the automotive industry using an interactive research approach. 

  • 188.
    Andersson, Carina
    Mälardalen University, School of Innovation, Design and Engineering.
    Information Design in Condition Monitoring2007In: The 3rd Information Design Conference, E-proceeding, Curitiba, 2007Conference paper (Refereed)
  • 189.
    Andersson, Carina
    Mälardalen University, School of Innovation, Design and Engineering.
    Informationsdesign i tillståndsövervakning: En studie av ett bildskärmsbaserat användargränssnitt för tillståndsövervakning och tillståndsbaserat underhåll2010Doctoral thesis, monograph (Other academic)
    Abstract [en]

    This research concerns the information design and visual design of graphical user interfaces (GUI) in the condition monitoring and condition-based maintenance (CBM) of production equipment. It also concerns various communicative aspects of a GUI, which is used to monitor the condition of assets. It applies to one Swedish vendor and its intentions to design information. In addition, it applies to the interaction between the GUI and its individual visual elements, as well as the communication between the GUI and the users (in four Swedish paper mills).

    The research is performed as a single case study. Interviews and observations have been the main methods for data collection. Empirical data is analyzed with methods inferred to semiotics, rhetoric and narratology. Theories in information science and regarding remediation are used to interpret the user interface design.

    The key conclusion is that there are no less than five different forms of information, all important when determining the conditions of assets. These information forms include the words, images and shapes in the GUI, the machine components and peripherals equipment, the information that takes form when personnel communicate machine conditions, the personnel’s subjective associations, and the information forms that relate to the personnel's actions and interactions.

    Preventive technicians interpret the GUI-information individually and collectively in relation to these information forms, which influence their interpretation and understanding of the GUI information. Social media in the GUI makes it possible to represent essential information that takes form when employees communicate a machine’s condition. Photographs may represent information forms as a machine’s components, peripherals, and local environment change over time. Moreover, preventative technicians may use diagrams and photographs in the GUI to change attitudes among the personnel at the mills and convince them, for example, of a machine’s condition or the effectiveness of CBM as maintenance policy.

  • 190.
    Andersson, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Avgerinou, M
    Mälardalen University, School of Innovation, Design and Engineering.
    Who am I Online-Portraits of Online Teachers from Sweden and the USA2005Conference paper (Refereed)
  • 191.
    Andersson, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Bengtsson, Marcus
    Mälardalen University, School of Innovation, Design and Engineering.
    Essential Information Forms of Condition Monitoring in a Condition Based Maintenance Context2009In: International Journal of COMADEM, ISSN 1363-7681, Vol. 12, no 4, 10-20 p.Article in journal (Refereed)
    Abstract [en]

    The purpose of the study is to describe an information theory in order to achieve a fruitful discussion of information within condition monitoring in a condition based maintenance context. The paper is based on a qualitative and interdisciplinary approach. A case study is performed at four Swedish paper mills and one condition monitoring supplier. Interviews have been the main method for data collection; however, observations and studies of artifacts are included in the study also. The main contribution of the study is a framework that visualizes how data and five different forms of information interact and turns into knowledge about a machine’s condition. These forms of information are all necessary to take into consideration when implementing and operating a condition based maintenance program. The research results state that it is relevant to allow and encourage the technicians and operators to utilize several forms of information when assessing the condition of an asset, and, thus, to not put too much trust in the condition monitoring technology alone. Also, it can be important to encourage user interface designers to reflect upon the different contexts and information forms as they design information in a condition monitoring interface.

  • 192.
    Andersson, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Eriksson, Yvonne
    Mälardalen University, School of Innovation, Design and Engineering.
    Frank, Lars
    Mälardalen University, School of Innovation, Design and Engineering.
    Nicholl, B
    University of Cambridge.
    Design fixations among information design students: What has been seen cannot be unseen2012In: Proceedings of the 14th International Conference on Engineering and Product Design Education: Design Education for Future Wellbeing, EPDE 2012, 2012, 159-166 p.Conference paper (Refereed)
    Abstract [en]

    This research explores the phenomenon of design fixation by studying undergraduate design students undertaking an information product design problem. The research is based on a case study, with 64 students. The students were given a design problem, and their design processes were documented in a weblog, which was analyzed jointly with handouts and slide presentations. The research suggests that the formulation of ideas in and recording of an early group brainstorming sessions may contribute to fixation of the finale design solution.

  • 193.
    Andersson, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Pettersson, Rune
    Mälardalen University, School of Innovation, Design and Engineering.
    How can a design process and a scientific process in information design collaborate?2004In: Proceedings of the 4th International Seminar and Workshop EDIProD 2004, Zielona Góra, Poland, October 7–9. Poland, 2004Conference paper (Refereed)
  • 194.
    Andersson, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Pettersson, Rune
    Mälardalen University, School of Innovation, Design and Engineering.
    How do we perceive and experience the design of messages in a web site? The multi analysis model of expressions in information set2004Conference paper (Refereed)
  • 195.
    Andersson, Carina
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Pettersson, Rune
    Spinillo, C
    How to Merge Theory and Practice in Information Design? Educaraional and Research Perspectives in Visual Literacy2005Conference paper (Refereed)
  • 196.
    Andersson, Charlotte
    et al.
    Mälardalen University, School of Innovation, Design and Engineering.
    Linnakallio, Caroline
    Mälardalen University, School of Innovation, Design and Engineering.
     Basstation-FUMO 32013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • 197.
    Andersson, Daniel
    Mälardalen University, School of Innovation, Design and Engineering. Mälardalen University.
    Innovation i allmänhetens tjänst: Effektiva innovationsprocesser i ett offentligt bolag2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The public sector in Sweden should, according to a rapport from the European central bank system (ECBS) in 2003, be able to keep the same quality with only half the economic resources. New ways that could raise value and reducing expenses in the Swedish public sector are therefore much needed. Innovative processes are suggested to be important for the public sector to find new andmore efficient methods of work. In this research the innovation process in a public corporation is reviewed with an intention to give suggestions of work methods that could improve the corporation’s efficiency. The following questions have guided the research: What characterize efficient innovation processes? How can efficient innovations processes help value to a publiccorporation? How can the public corporation work for more efficient innovation processes in their business?The purpose of this research is to develop suggestions for work methods that will help to improve the efficiency of the public corporation´s innovation processes.In this research a qualitative method is used in form of semi structured interviews with four employees in a public corporation in Sweden, two co‐workers, one executive and one CEO. The interviews were aimed to give a description of the present innovation processes in the corporation. The empiric data was analyzed from a theoretic point of view and set out to give suggestions for work methods that will help to improve the efficiency of the corporation´s innovation processes.Efficient innovation processes can vary from one organization to another. There is not one process that is more efficient than other processes and the innovation process have to be suited for the specific organization. A more efficient innovation process in the public corporation in this study can mean possibilities for a competitive business environment which gives job opportunities and an economic growth in the region. The public corporation in this study has flaws in their idea generating activities and in their continuous evaluation. It is primarily cultural obstacles that affect the innovation processes negative. The public corporation also needs routines for external and internalenvironment monitoring and for managing information.

  • 198.
    Andersson, Daniel
    Mälardalen University, School of Innovation, Design and Engineering.
    Innovativt ledarskap: Ledarskap ur ett innovationsperspektiv i den offentliga sektorn2010Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Problem. With the Swedish public sectors problem with efficiency in mind, several reforms have beeninitiated during the last decades. These reforms go, in academic contexts, under the name“New public management”. The reforms have resulted in, among other things, an increasedcompetition, privatization and goal-orientation in the public sector. These new conditionshave changed the public leadership challenge and demand an increased focus on innovation todecrease costs and increase value as a central aspect of the Swedish public leadership.

    Purpose. The purpose for this research has been to examine the conditions for innovation in a publicorganization and how the leadership can improve the organizational innovativeness.

    Method. This research does not aim to measure the innovativeness in a public organization, instead itfocuses on understanding the condition for innovation and how the leadership can affect theorganizational innovativeness. Hence, it is motivated that I use a qualitative approach in theresearch process. Semi structured interviews and precedent research are being used as afoundation for the results and recommendations given.

    Conclusion. The leadership’s opportunities to improve the organizational innovativeness depend on anumber of independent organizational variables and the adaption of the variables to oneanother and the system as a whole. Leadership includes both the formal boss and the coworkerin a relationship that ought to be characterizing by reciprocity and cooperation. Bothmanagement and leadership are vital competences for the formal boss as both structure andculture must support each other. The conditions for organizational innovativeness improve ifthe organization has a structure and a culture that enhances: transboundary cooperation, spaceand energy for creative activities, a common context that contributes to an organizationalidentity and motivation and competence and organizational learning. The examinedorganization needs to decentralize the right to make decisions, improve the openness of theculture, and strengthen the organizational identity and audit structures in purpose to facilitatetransboundary cooperation.

  • 199.
    Andersson, Daniel
    et al.
    Mälardalen University, Department of Innovation, Design and Product Development. Mälardalen University, School of Innovation, Design and Engineering.
    Tholén, Fredrik
    Mälardalen University, Department of Innovation, Design and Product Development.
    Styrkan i OEE som arbetsmetod2008Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The E-department at GETRAG All Wheel Drive in Köping have problems with the efficiency on parts of their production equipment. The equipment with the most significant efficiency problems are four automated multifunctional production cells that produces housing for rear drive units. The major part of the problem is the large amount of small stops that causes the low efficiency.

    The department already worked with logging of interruptions and efficiency calculations before this project started. However this work was not done to the extent considered necessary for a systematic follow-up of the interruptions.

    The aim of this paper is to point out a more effective and systematic way to work with logging of interruptions and the follow-up. In addition the equipment were studied with a method for efficiency calculation that – if used properly- is a more powerful and a visually better method than the one used by the company today.

    As the initial current state analysis of the equipment was made a lack of documented knowledge about the equipment was discovered. In addition the efficiency appeared to be lower than the companies previously presented figures.

    With the help of new methods for logging of interruptions and a deeper failure analysis the production equipment were studied for ten weeks. These studies showed that the department have big opportunities to a more effective and more profitable production. This can be done by reducing the chronicle interruptions through a more systematic work with continuous improvements.

    On the basis of the performed studies and the theoretical references a new working method that is based on the commitment of all employees is presented. This method can be used by the E-department to work with continuous improvements in a more systematic way than today.

  • 200.
    Andersson, Edvin
    Mälardalen University, School of Innovation, Design and Engineering.
    Dataöverföring av skilda datatyper på gemensam länk via multiplexing2017Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    When transferring different data types between two sites, they have historically been transferred on separate infrastructures; analog signals separately, and digital data separately. Within the aviation industry, both these data types are still handled today, as transition from analog voice data to digital voice data takes time. To simplify the infrastructure, it is desirable to send all data on the same medium. Time Division Multiplexing (TDM) makes this possible and has been studied with focus on robustness and performance. The study has focused on how TDM devices should be configured with respect to Ethernet frame size to fully utilize link capacity. Theoretical reasoning has been validated by experimental data performed on TDM devices coupled with a fiber link. The number of lost frames for the system has been measured while varying data rates. This was repeated for several Ethernet frame sizes. Smaller frame sizes showed a higher possible transfer rate before data loss was recorded. This shows coherence between theory and experiments. Larger frame sizes were less good at filling the TDM time slots, causing data buffer on the device to overflow faster than for smaller frame sizes. This created data loss in the system. Other factors, such as overhead and payload, implies that the frame size should be chosen by application. Smaller data volumes that are sent frequently have an advantage when using smaller frame sizes, while when handling largeramounts of data that need to be transmitted quickly, it is more efficient to use larger frame sizes

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