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  • 1.
    Abbaraju, Nanda
    Jönköping University, School of Engineering.
    Sending and Receiving Data between Mobile and Data Logger2008Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
  • 2.
    Abghari, Shahrooz
    et al.
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    García Martín, Eva
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Johansson, Christian
    NODA Intelligent Systems AB, Sweden.
    Lavesson, Niklas
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics, JTH, Jönköping AI Lab (JAIL). Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Grahn, Håkan
    Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik.
    Trend analysis to automatically identify heat program changes2017In: Energy Procedia, Elsevier, 2017, p. 407-415Conference paper (Refereed)
    Abstract [en]

    The aim of this study is to improve the monitoring and controlling of heating systems located at customer buildings through the use of a decision support system. To achieve this, the proposed system applies a two-step classifier to detect manual changes of the temperature of the heating system. We apply data from the Swedish company NODA, active in energy optimization and services for energy efficiency, to train and test the suggested system. The decision support system is evaluated through an experiment and the results are validated by experts at NODA. The results show that the decision support system can detect changes within three days after their occurrence and only by considering daily average measurements.

  • 3.
    Adlemo, Anders
    et al.
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics. Jönköping University / School of Engineering.
    Tan, He
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics, JTH, Jönköping AI Lab (JAIL).
    Tarasov, Vladimir
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics, JTH, Jönköping AI Lab (JAIL).
    Test case quality as perceived in Sweden2018In: Proceedings - International Conference on Software Engineering / [ed] Michael Unterkalmsteiner, ACM Digital Library, 2018, p. 9-12Conference paper (Refereed)
    Abstract [en]

    In order to reach an acceptable level of confidence in the quality of a software product, testing of the software is paramount. To obtain "good" quality software it is essential to rely on "good" test cases. To define the criteria for what make up for a "good" test case is not a trivial task. Over the past 15 years, a short list of publications have presented criteria for "good" test cases but without ranking them based on their importance. This paper presents a non-exhaustive and non-authoritative tentative list of 15 criteria and a ranking of their relative importance. A number of the criteria come from previous publications but also from discussions with our industrial partners. The ranking is based on results collected via a questionnaire that was sent out to a limited number of randomly chosen respondents in the Swedish software industry. This means that the results are more indicative than conclusive.

  • 4.
    Afzal, Mansoor
    Jönköping University, School of Engineering, JTH. Research area Information Engineering.
    Graph-Based Visualization of Ontology-Based Competence Profiles for Research Collaboration2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Information visualization can be valuable in a wide range of applications, it deals with abstract, non-spatial data and with the representation of data elements in a meaningful form irrespective of the size of the data, because sometimes visualization itself focuses on the certain key aspects of the data in the representation and thus it helps by providing ease for the goal oriented interpretation. Information visualization focuses on providing a spontaneous and deeper level of the understanding of the data.

    Research collaboration enhances sharing knowledge and also enhances an individual’s talent. New ideas are generated when knowledge is shared and transferred among each other. According to (He et al, 2009) Research collaboration has been considered as a phenomenon of growing importance for the researchers, also it should be encouraged and is considered to be a “good thing” among the researchers.

    The main purpose of this thesis work is to prepare a model for the competence profile visualization purpose. For this purpose the study of different visualization techniques that exist in the field of information visualization are discussed in this thesis work. The study and discussion about the visualization techniques motivates in selecting appropriate visualization techniques for the visualization of Ontology-based competence profiles for research collaboration purpose. A proof of concept is developed which shows how these visualization techniques are applied to visualize several components of competence profile.

  • 5. Ahlström, Johan
    et al.
    Nordström, Edward
    PSQS – Power Supply Quality Simulator2008Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    Kitron had wishes to be able to test and measure how disturbance affects their vehicle electronic units before they have been verified by SP Technical Research Institute of Sweden in Borås. This work started with the writing of a demand specification together with Kitron for a product PSQS, Power Supply Quality Simulator, which can generate some test pulses according to a standard for electronic units to Volvos vehicles. A design proposal was developed with the help the demand specification and was verified with the help of simulations. All electric schematics was designed with the guide of the design proposal. The pulses realized in the works of this thesis are those which Kitron experienced that they have a need to test in their own premises and which are possible to generate with the means available. All work took place at Kitron in Jönköping, the restriction of the work has been the cost of components not to be to high as well as the finished product shall be easily managed. This thesis work resulted in a unit which is possible to produce a number of disturbances on the voltage feed to a unit under test. Some pulses have not been completely correct according to Volvos standard. There are large possibilities to further develop PSQS to a unit that follows Volvos standard and even other vehicle producer’s standards.

  • 6. Aid Kalle Dunkel, Laura Viktorya Chrsitina Matthias Wißotzki
    et al.
    Sandkuhl, Kurt
    Jönköping University, School of Engineering, JTH. Research area Information Engineering.
    State of research in reuse of enterprise models: Systematic literature analysis of CAISE, EMMSAD, ICIS and INCOM2012In: Proceedings of the IADIS International Conference on Information Systems, 2012, p. 82-90Conference paper (Refereed)
    Abstract [en]

    The importance of managing organizational knowledge of enterprises has been recognized for decades. The systematic development and reuse of organizational knowledge is expected to improve the competitiveness of the enterprise. While the practice of “reuse” is common in general computer science there is still a lack of surveys in regard to reuse in enterprise modeling. This document reviews four different papers presented at information systems conferences over the last seven years: CAISE, EMMSAD, ICIS, and INCOM. Our analysis indicates that the majority of research is realized by case studies, theoretical frameworks and mostly on business process modeling aspects of enterprise models.

  • 7.
    Alavizadeh, Zahra
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    PLC Controlled System for Local Humidity Management in Electronic Enclosures2010Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This master thesis is about investigation a power efficient anti-moisture device thatcan be implemented in electronic enclosures in severe climatic environments.First, some of the existing knowledge and previous works were introduced. Then arelevant theoretical background including three main approaches in humiditymanagement are described, comparison between the enclosure heaters and localheaters, some psychrometics concepts that have been used in the project, heattransfer fundamentals, environmental test basics, some humidity and temperaturesensing techniques, computational fluid dynamics, programmable logic controlfundamentals, comparison PLCs with microcontrollers was provided.A series experiments have been performed in order to find the power efficient andmost effective anti-moisture method. Based on the analysis of the experiment data,the local heater system has been designed. CFD assisted parametric study of thelocal heater has been performed in order to find the best feasible design includingthe size and location. The local heater has been built based on the results ofparametric study. Different materials have been tested in laboratory in order tofind the proper material for final prototype of heater. The implemented localheater has been integrated with programmable logic control device. The controlalgorithm has been developed for activation/deactivation of local heater. The logiccontrolled PCB local heater has been experimentally evaluated.In the end the results achieved from environmental test have been presented andanalyzed. Some conclusions on the results and also future work have been discussed.

  • 8.
    Allén, Tobias
    et al.
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Wern, Daniel
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Utveckling av applikationsplattform för inbyggt system2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 9.
    Al-Otaibi, Ahmad
    et al.
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Hamed Oraibi, Yaser
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    AUTOMOTIVE BUS SYSTEM SCALABILITY2015Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Purpose: The purpose of these theses is to build a deep understanding of CAN-FD and how does it work in the network.

    Method:The methods are literature studies that build on scientific books, data sheets, white papers, articles and interviews. 

    Findings: This research shows that the scalability of CAN-FD is the same in Classic CAN. Supporting high bit rate and increasing the bandwidth for CAN-FD is the only gap between them. In addition, the result shows that the CAN-FD doesn’t work on Partial Networks.

    Implications: The idea of this report was interesting for the companies that have needs for CAN-FD, which help to increase their knowledge about CAN-FD.

    Limitations: A Qualitative method was a useful method to reach the needs of this study. This method leads to real results that have been done in the other studies. The only missing for the authors is the scientific research that could build on real experiments and measurements on the hardware or software was not available under this research and this could lead to more clear results.

    Limitations: A Qualitative method was a useful method to reach the needs of this study. This method leads to real results that have been done in the other studies. The only missing for the authors is the scientific research that could build on real experiments and measurements on the hardware or software was not available under this research and this could lead to more clear results.

  • 10.
    Amin, Skorupan
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Eyetracking som interaktions-hjälpmedel i fordon: Utveckling och utvärdering av ett ögonstyrt infotainmentsystem2018Independent thesis Basic level (degree of Bachelor), 12 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to develop and evaluate a new eye-controlled infotainmentsystem that worked differently compared to similar systems. What differs this new system is that personal calibration is not necessary to be performed before each time the system is to be used.

    The method Design Science Research (DSR) has been used where an artifact has been developed and then investigated. Experiments have been conducted to find out how well the infotainment system works when it uses a relative gaze towards an absolute, but also to find out how users should confirm their gaze in the best way. For confirmation of gaze, three different methods have been used; button press, blink, and gazing. The collected data from the experiments have been matched to evaluate how well they stand against each other.

    The result of the study shows that when the infotainment system used relative gaze, it worked in as many attempts as it did using absolute. The result times were very similar to each other which shows that the both methods works well even when face calibration is not used, but the collected data was uneven which made it difficult to draw conclusions about which one was faster. The study also shows that keystroke was the best-suited method to use to confirm gaze.This method was much faster than other methods.

    A limitation of the study has been that data collection was only done on two occasions. On more occasions more data could have been generated, which would have made it easier to draw more conclusions about the response times.

  • 11.
    Andersson, Jonas
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Serialisering av API mellan PC och inbyggda system2010Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta examensarbete behandlar problemet med att testa inbyggda system i kontorsmiljö. För att göra detta och därigenom kunna göra anrop på det inbyggda systemets API, måste detta anrop skickas som ett seriellt datapaket över en seriell kommunikationslänk som TCP/IP.

    Detta möjliggjordes genom att först upprätta en kommunikationslänk med protokollet TCP/IP, där användningen av POSIX-sockets tillämpades. För att packa ner och packa upp funktionsanropen till seriell data implementerades ett protokoll som följdes när detta utfördes. Hantering av data i samband med överföring över TCP/IP sköttes av ett protokoll vid namn BGSFP, ett protokoll som bygger på det tidigare protokollet TSFP.

  • 12. Andrae, Anders S.G.
    et al.
    Möller, Patrik
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. Jönköping University, School of Engineering, JTH. Research area Embedded Systems.
    Andersson, Johan
    Liu, Johan
    Uncertainty estimation by Monte Carlo Simulation applied to life cycle inventory of cordless phones and microscale metallization Processes2004In: IEEE transactions on electronics packaging manufacturing (Print), ISSN 1521-334X, E-ISSN 1558-0822, Vol. 27, no 4, p. 233-245Article in journal (Other academic)
  • 13.
    Andreasson, Daniel
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. Jönköping University, School of Engineering, JTH. Research area Embedded Systems.
    Slack-Time Aware Dynamic Routing Schemes for on-chip networks2007Licentiate thesis, monograph (Other academic)
    Abstract [en]

    Network-on-Chip (NoC) is a new on-chip communication paradigm for future IP-core based System-on-Chip (SoC), designed to remove a number of limitations of today’s on-chip interconnect solutions. A NoC interconnects cores by means of a packet switched micro-network, which improves scalability and reusability, resulting in a shorter time to market. A typical NoC will be running many applications concurrently, which results in shared network capacity between different kinds of traffic flows. Due to the diverse characteristic of applications, some traffic flows will require real-time communication guarantees while others are tolerant to even some loss of data. In order to provide different levels of Quality-of-Service (QoS) for traffic flows, the communication traffic is separated into different service classes. Traffic in NoC is typically classified into two service classes: the guaranteed throughput (GT) and the best-effort (BE) service class. The GT class offers strict QoS guarantees by setting up a virtual path with reserved bandwidth between the source (GT-producer) and destination (GT-consumer), called a GT-path. The BE class offers no strict QoS guarantees, but tries to efficiently use any network capacity which may become available from the GT traffic. The GT traffic may not fully utilize its bandwidth reservation if its communication volume varies, leading to time intervals where there is no GT traffic using the bandwidth reservation. These intervals are referred to as slack-time. If the slack can not be used this leads to unnecessarily reduced performance of BE traffic, since a part of the available network capacity becomes blocked. This thesis deals with methods to efficiently use the slack-time for BE traffic. The contributions include three new dynamic schemes for slack distribution in NoC. First, a scheme to inform the routers of a GT-path about available slack is evaluated. The GT-producer plans its traffic using a special playout buffer, and issues control packets containing the actual amount of slack-time available. The results show that this scheme leads to decreased latency, jitter and packet drops for BE traffic. Secondly, an extension to this scheme is evaluated, where slack is distributed among multiple GT-paths (slack distribution in space). This opens up the possibility to balance the QoS of BE traffic flows which overlap with the GT-paths. Thirdly, a scheme to distribute slack among the links of a GT-path (slack distribution in time) is proposed. In this approach, arriving GT-packets, at a certain router along the GT-path, can wait for a maximum defined amount of time. During this time, any waiting BE traffic in the buffers can be forwarded over the GT-path. The results confirm that this is especially important during high BE-traffic load, where this technique decreases the jitter of BE traffic considerably.

  • 14.
    André, Samuel
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Elgh, Fredrik
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Modeling of transdisciplinary engineering assets using the design platform approach for improved customization ability2018In: Advanced Engineering Informatics, ISSN 1474-0346, E-ISSN 1873-5320, Vol. 38, p. 277-290Article in journal (Refereed)
    Abstract [en]

    Original equipment suppliers (OES) that develop unique products are continuously faced with changing requirements during both the quotation and product development processes. This challenge is a different reality from companies that develop off-the-shelf products for the end consumer, which use fixed specifications and where product platforms have been a strong enabler for efficient mass customization. However, product platforms cannot adequately support companies working as OES. The reason is that a high level of customization is required which means that interfaces cannot be standardized, the performance is not negotiable, requirements are not initially fixed, and the specific system interacts with, is affected by, or affects other systems that are simultaneously developed in a transdisciplinary environment. The design platform (DP) approach provides a coherent environment for heterogeneous and transdisciplinary design resources to be used in product development by supporting both designing and off-the-shelf solutions. This research describes the introduction, application and further development of the DP approach at an automotive supplier to support the development of customized solutions when traditional modularity or platform scalability do not suffice. A computer tool called Design Platform Manager has been developed to support the creation and visualization of the DP. The support tool has a connection to a product data management database to link the platform model to the various kinds of engineering assets needed or intended to support variant creation. Finally, the support tool was evaluated by the case company representatives showing promising results. 

    The full text will be freely available from 2020-08-08 00:00
  • 15.
    Anhammer, Ida
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Asp, Rebecca
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Informationssystemets inverkan på SMF i logistikbranschen: Fallstudie på Pallservice Renova Syd AB2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The aim of the study is to identify, from an operational and strategic perspective, the impact of a digital information system on SME in the logistics industry.Based on the purpose of the study, two questions have been formulated.

    • What effects can a digital information system provide on an information flow at an operational level?• What strategic benefits can a digital information system give?

    Method – A case study has been conducted on a small logistics company that manages, repairs and manufactures pallets. The data collection was conducted through interviews and observations. Based on the data collection, a literature study has been conducted where an inductive approach has been used. A comparison and analysis between the literature study and empirical data has generated the results of the study.

    Findings – With regards to operational and strategic perspective, a digital information system may have different types of impact on SMEs. From an operational perspective, a digital information system can have the following effects:• Operations can be reduced• Reduction of lead time• Enables increased quality of information and information may be available in real time• Creates prerequisites for forecasts, which in return creates a good basis for planning and decision making

    The benefits identified at a strategic level of implementing a digital information system are:• Competitive advantage• Decision can be taken based on correct information• Creates new opportunities• Better customer relations

    Implications – This study highlights the impact of digitization on companies and provides evidence that digitalization of information systems can lead to shorter lead times, reduced documents and safer information in the flows. The study's findings reinforce and confirm the existing theories that a digital information system can help a company to create more effective processes and a smoother management of its information. The case company illustrate a problem that more logistics companies may experience and where an information system can be a solution for easier management and more up-to-date information.

    Limitations – The purpose of the study is to investigate a company's information flow linked to a specific product category. The economic aspects of information management are not considered in this study.

  • 16.
    Arvidsson, Simon
    et al.
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Gullstrand, Marcus
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Classifying natural forests using LiDAR data2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In forestry, natural forests are forest areas with high biodiversity, in need of preservation. The current mapping of natural forests is a tedious task that requires manual labor that could possibly be automated.

    In this paper we explore the main features used by a random forest algorithm to classify natural forest and managed forest in northern Sweden. The goal was to create a model with a substantial strength of agreement, meaning a Kappa value of 0.61 or higher, placing the model in the same range as models produced in previous research.

    We used raster data gathered from airborne LiDAR, combined with labeled sample areas, both supplied by the Swedish Forest Agency. Two experiments were performed with different features. Experiment 1 used features extracted using methods inspired from previous research while Experiment 2 further added upon those features. From the total number of used sample areas (n=2882), 70% was used to train the models and 30% was used for evaluation.

    The result was a Kappa value of 0.26 for Experiment 1 and 0.32 for Experiment 2. Features shown to be prominent are features derived from canopy height, where the supplied data also had the highest resolution. Percentiles, kurtosis and canopy crown areas derived from the canopy height were shown to be the most important for classification. The results fell short of our goal, possibly indicating a range of flaws in the data used. The size of the sample areas and resolution of raster data are likely important factors when extracting features, playing a large role in the produced model’s performance.

  • 17.
    Aslam, Muhammad Awais
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Router Architecture for Junction Based Source Routing:Design and FPGA Prototyping2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The increase in the number of cores that can be integrated on a single chip has forced the designer to use computer network concepts for design of System on Chip (SoC). This idea led to development of Network on Chip (NoC) to deal with more cores on a single chip. NoC has three main parts, namely routers, link and network interface through which cores are connected to NoC. Router is one of the most important parts because cores communicate with other cores through routers. One of the important tasks for a NoC designer is to design router with low latency.Router design depends on the routing protocol and routing algorithm used. Two kinds of routing algorithms are source routing and distributed routing. In source routing, complete route information is available in Head flit while in distributed routing, routing decisions are taken inside every router on the path. Source routing has speed advantage over distributed routing because the packet itself contains the routing information. But source routing leads to overhead to store complete path information in the header of each packet. To overcome this flaw, junction based source routing has been introduced. If destination is far away from the source then first packet will go to a junction and get the new path information from the junction to the destination. Thus we need to store the path information only for a few hops in the packet header. This idea has been taken from the daily experience of train journey. In this thesis we have developed design of a router for junction based source routing. Main component of simple router includes buffering, header modification and making route decision. Router includes a table called Path Table which stores information about paths from junction to various destinations. JB router also includes, picking up the new path information from Path Table and modify the header by adding new path information.We have developed VHDL designs of two versions of the routers for Junction Based Routing. The delay performance of routers have been analysed through simulation. A simple prototype of the router has also been implemented in Altera FPGA to find out the resource requirements of the new router designs.

  • 18.
    Avdiu, Blerta
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Matching Feature Points in 3D World2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This thesis work deals with the most actual topic in Computer Vision field which is scene understanding and this using matching of 3D feature point images. The objective is to make use of Saab’s latest breakthrough in extraction of 3D feature points, to identify the best alignment of at least two 3D feature point images.

    The thesis gives a theoretical overview of the latest algorithms used for feature detection, description and matching. The work continues with a brief description of the simultaneous localization and mapping (SLAM) technique, ending with a case study on evaluation of the newly developed software solution for SLAM, called slam6d.

    Slam6d is a tool that registers point clouds into a common coordinate system. It does an automatic high-accurate registration of the laser scans. In the case study the use of slam6d is extended in registering 3D feature point images extracted from a stereo camera and the results of registration are analyzed.

    In the case study we start with registration of one single 3D feature point image captured from stationary image sensor continuing with registration of multiple images following a trail.

    Finally the conclusion from the case study results is that slam6d can register non-laser scan extracted feature point images with high-accuracy in case of single image but it introduces some overlapping results in the case of multiple images following a trail.

  • 19.
    Axelsson, Emil
    et al.
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Hansson, Hanna
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Internet of Things: Kommunikationsstandarder för smarta hem, i teorioch praktik2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 20.
    Axing, Erik
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Ljudkudde med stereoåtergivning2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This exam is done with the cooperation of Thorbjörn Birging. Birging does work with RFID[1] and he is also CEO at CombiQ at Science Park in Jönköping. For a long time he wanted to make an innovation to help people with sleeping problems, depression, anxiety and stress. The author’s role as an engineer student where to make his idea come true from scratch to prototype. Birging discovered after reading an article about sleeping problems that there were studies which showed that it is easier to sleep with a faint sound in the room so other people in the room does not get disturbed. Birging then focused to create a new pillow with sound integrated that should stand out from today’s pillows.

     The goal with this exam was to create a pillow with excellent stereo sound with amplifiers, which help peoples sleeping problems. Many people with these problems seek help at hospitals, but they only get prescriptions for tranquillizer and anti-depressive pills. Another issue with sleeping pills is the risk of getting addicted and long time use might disturb the normal sleeping function, which Anders Isaksson can confirm. Birging He runs a private clinic in Örebro and has helped Birging in a previous project. Birging has been in contact with Anders under this project and can confirm this statement.

     One way of relive sleeping problems might be to let the patient listen to calming music before the sleep period begins, which is the idea for this project. The author did an investigation to find any positives or negatives in today’s pillows with sound ability. Idea generating and require specification started soon after this with help of Birging. To know what the customers want with this new product a designbrief, function analytic and a QFD-matrix. The designbrief where made both verbal and visual to know how the product should look like as a customer. With the QFD-matrix we can rank the preferences with the competitors pillows in relation to Birgings requirements on the new prototype. The QFD doesn’t give any answers how the customer experience the product that the designbrief can accomplish. A prototype construction can only begin when the designbrief and function analytic are finished. The material selection was made by different test-phases with sound and comfort. Recticel AB in Gislaved has provided the author with different types of foam for the pillow and for this new product there is an interest to follow the development in the future. 

     The new developed product did manage to become better than the competitor’s pillows in many ways. The new product is pressure relieving, gives better sound which means the volume does not have to be high, and disturbance in the surroundings is minimized. The reason is that the material does spread the sound waves straight upwards the users ears. The pillows measurement are B50*H40*T5, that means you can have much space in bed and easy find a standard pillowcase. The user will get a comfortably sleeping period the entire night with this new product.

    [1] Radio Frequency IDentification

  • 21.
    Azizi, Nima
    et al.
    Jönköping University, School of Engineering, JTH. Research area Information Engineering. Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Taqi, Mohammed Aysar
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. Jönköping University, School of Engineering, JTH. Research area Information Engineering.
    Applying Agile methodologies within the context of traditional project governance: - A study of the Volvo Group experience2015Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The nature of software development has changed in last decade. Waterfall or traditional command and control methods have been replaced by Agile methodologies. Agile came as a “solution” to the disadvantages of the waterfall methodology, but using Agile has its own challenges. Due to the attractive characteristics of Agile such as flexibility and short time-to-market, Agile development has been increasingly popular and the number of organisations which have started to move to Agile is growing every day. Implementing new methodologies in any organisation is always a big challenge, especially for large-scale organisations due to their complexity, many different interacting interfaces, strong organisational culture, etc.

    The nature of these challenges and obstacles changes from different perspectives within an organisation, and each of these perspectives needs to be studied and investigated to ensure a successful transition from traditional approaches to Agile. In this thesis we focus on the project manager and project governance perspectives. We aim to define the success and failure factors that play a key role in moving from traditional approaches to Agile approaches in large-scale organisations.

    To address these challenges we conducted literature reviews on the latest research in implementing Agile methodologies. To collect our data we used a combination of qualitative and quantitative research methods. We explored both IT project manager and Chief project manager opinions and experiences of the organisations by conducting interviews and questionnaires in our research.

    The results reveals the difficulty to find proper product owners in the Agile projects. It is challenging to set a product owner who has Agile knowledge and is expert in the project domain. Specialized training and coaching for product owners is mentioned as one of the solutions that could be provided for this challenge. “Distributed teams”, “Lack of focus on the business side” and “Weak coaching and support” are some of the other critical areas which have been presented by the participants in the interviews and survey in this study.

    The main conclusion is that in order to have a successful transition to Agile approaches, the Agile mind-set should be set in all different part in an organizations, not only the development side and also that everyone have to understand “Why” Agile is beneficial. Also the communication of lessons learnt and feedback should be strong and effective in order to avoid repetition of the same mistakes. In addition, specialized training and coaching for different roles within the period of the development is necessary to ensure the successful adoption of Agile.

  • 22.
    Badri, Shabnam
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    JUNCTION BASED ROUTING: A NOVEL TECHNIQUE FOR LARGE NETWORK ON CHIP PLATFORMS2011Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Abstract

    To support communication among hundreds of cores on a chip, on-chip

    communication must be well organized. In the embedded systems using such a chip,

    the communication patterns can be profiled and routing can be well planned off-line.

    Source routing, with many advantages over distributed routing, will be very suitable

    in such contexts. However, source routing has one serious drawback of overhead for

    storing the path information in header of every packet. This disadvantage becomes

    worse as the size of the network grows. In this thesis we propose a technique, called

    Junction Based Routing (JBR), to remove this limitation. In the proposed technique,

    path information for only a few hops is stored in the packet header. With this

    information, either the packet reaches the destination, or reaches a junction from

    where the path information for on-ward path is picked up.

    There are many interesting issues related to this approach. Two important issues

    related to JBR, namely, number and position of junctions and path computation for

    efficient deadlock free routing are discussed and solved in this thesis work. Increase

    in path length by using the minimum number of junctions, link load distribution while

    computing paths, path encoding for JBR and packet format in JBR are also discussed.

    A few tools have been developed in MATLAB to analyze the various aspects of JBR.

    A simulator has been also developed to evaluate the performance of JBR with simple

    source routing. Outline of the architecture for a junction is also proposed.

    The results of simulation-based experiments show that the performance of JBR is

    similar to source routing. JBR is compared with source routing and the simulationbased

    results show that latency does not increase so much using junctions.

    Throughput also does not level off significantly. Header flit in JBR can carry payload

    data and this improves the performance of JBR in terms of throughput and latency

    compared to source routing which needs to store large path information. We observe

    improvement in throughput as compared to basic source routing when payload is very

    small.

    Key Words

    System on Chip (SoC)

    Core-Based Design

    On Chip Communication

    Network on Chip (NoC)

    Packet Switched Network

    Routing Algorithms

    Source Routing

    Junction-Based Routing

    Specification and Description Language (SDL)

  • 23. Bakowski, M.
    et al.
    Nee, H.-P.
    Belov, Ilja
    Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing - Surface technology.
    Leisner, Peter
    Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing - Surface technology.
    High temperature electronic systems all in silicon carbide (SiC) for electric vehicles2011In: Workshop för 'Banbrytande IKT 2007, VINNOVA, Stockholm, 1 September 2011, 2011Conference paper (Other academic)
  • 24.
    Barakat, George
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Translating HLA XML-based object models into ontologies2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    HLA, stands for High Level Architecture, is an IEEE standard to provide interoperability among Modeling and Simulation (M&S) systems. HLA defines an XML-based format, called Object Model Template (OMT), to represent data and information exchange between systems. The problem with XML representation, though, is that it is incapable of providing semantic interoperability. On the contrary, using representations like ontology languages (OWL) is one practical approach to provide such interoperability. This thesis studies the state of the art of the generic XML to OWL mapping strategies, aims to identify the shortcoming in those strategies to accomplish a translation between HLA XML-based object model and OWL ontology, and, eventually, introduces a framework for such translation. The framework proposed in this study is implemented and evaluated using HLA object models defined in WISE, which is an M&S integration platform developed by SAAB.

  • 25.
    Beijert, Lotte
    Jönköping University, Jönköping International Business School, JIBS, Informatics.
    Designating Legacy Status to IT Systems: A framework in relation to a future-oriented perspective on legacy systems2016Independent thesis Advanced level (degree of Master (Two Years)), 30 credits / 45 HE creditsStudent thesis
    Abstract [en]

    Organizations that have come to depend on legacy systems face quite a paradoxical problem. Maintaining the system might prove ineffective in accommodating necessary changes, but a system migration project is expensive and incurs a high amount of risk. Organizations are therefore hesitant to respond to the legacy system problem by undertaking action. Legacy system are often not causing their organization any problems at present, but a focus on the future with regard to the legacy system problem is lacking. This results in IT systems reaching an end-of-life state. The research therefore set out to explore a future-oriented perspective on legacy systems by means of observation, a literature review and a survey. The researcher found the key concept of a future-oriented perspective to be that any system that is limiting an organization to grow and innovate can be regarded as a legacy system. A framework to designate legacy status to IT systems is proposed in order to guide practitioners to acknowledge a problematic IT system to facilitate appropriate response at the right time. In relation to a future-oriented perspective, when to designate legacy status is best determined according to the system’s flexibility towards change and the alignment of the system with the business. In that regard, IT systems are end-of-life systems when they are too inflexible to change, and as a result become unaligned with either current operations or a future business opportunity or need.

  • 26.
    Belov, Ilja
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing. Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing - Surface technology.
    Reliability study of GaN HEMTs2016Conference paper (Other academic)
  • 27.
    Belov, Ilja
    et al.
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems.
    Carlsson, Jan
    SP Swedish National Testing and Research Institute, Borås, Sweden.
    Investigation of the coupling to a wire inside a box with apertures by means of FDTD simulations2002In: 9th International Symposium on Antenna Technology and Applied Electromagnetics: ANTEM 2002, Montreal, Canada, 2002, p. 125-128Conference paper (Refereed)
    Abstract [en]

    The induced current in a wire placed inside a conducting box due to field penetration through apertures has been studied using FDTD simulations. Two box configurations have been investigated in order to evaluate the difference in coupling with one large aperture and the combination of a large and a narrow aperture. The coupling to a wire placed above a ground plane has also been studied to compare it with the test cases involving the box.

  • 28.
    Belov, Ilja
    et al.
    Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing - Surface technology. Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems.
    Chedid, Michel
    Leisner, Peter
    Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing - Surface technology. Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems.
    Investigation of Snap-on Feeding Arrangements for a Wearable UHF Textile Patch Antenna2008In: Ambience 08 International Scientific Conference: proceedings 2008 : smart textiles - technology and design : Borås, Sweden / [ed] Lars Hallnäs, Pernilla Walkenström, Lennart Wasling, Borås: Centrum för textilforskning (CTF), The Swedish School of Textiles, University College of Borås , 2008, p. 84-88Conference paper (Refereed)
  • 29.
    Belov, Ilja
    et al.
    Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing - Surface technology. Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems.
    Lindgren, Mats
    Ryden, Jan
    Alavizadeh, Zahra
    Leisner, Peter
    Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing - Surface technology. Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems.
    CFD Assisted Design Evaluation and Experimental Verification of a Logic-Controlled Local PCB Heater for Humidity Management in Electronics Enclosure2010In: IEEE EuroSimE 2010, 26-28 April, Bordeaux, France, 2010Conference paper (Refereed)
    Abstract [en]

    Humidity management of commercial-of-the-shelf electronic components in non-controlled climatic environments can be realized e.g. by introducing a local printed circuit board heater. By choosing appropriate size and location of the heater plate in the vicinity of the critical electronic packages, and utilizing logic control function, it is possible to improve the quality of local humidity management and reduce power consumption of the heater, which is important especially in case of battery driven portable or vehicle mounted devices. A computational fluid dynamics assisted methodology has been developed to determine the best feasible design of the heater, followed by experimental verification of the constructed logic controlled heater. The experiment has been performed in a harsh climatic environment including temperature variation from +33°C to +40°C, and relative humidity variation from 54% to 80%. Analysis of the experimental %RH and temperature curves as well as power profile of the heater has confirmed the feasibility of the chosen approach to maintain greater than 9°C difference between the electronics package surface temperature and the local dew point temperature, by applying discrete power pulses with the amplitude less than 6 W.

  • 30.
    Belov, Vladimir
    et al.
    Ogarev Mordovia State University, Saransk, Russian Federation.
    Leisner, Peter
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing. RISE, Swedish Research Institute, Safety and Transport/Electronics, Borås, Sweden.
    Mannikoff, Anders
    Herrljunga Elektriska AB, Herrljunga, Sweden.
    Belov, Ilja
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Mathematical Model of Multi-Phase Power Converter for Parallel Computation2018In: International Journal of Emerging Electric Power Systems, ISSN 2194-5756, E-ISSN 1553-779X, Vol. 19, no 1, article id 20170114Article in journal (Refereed)
    Abstract [en]

    A mathematical model of a multi-phase power conversion system composed of modified bridge-elements (B-system) capable for parallel computation has been developed. Experimental validation on the example of a power system including a synchronous generator and an AC-DC rectifier has been performed. A mathematical algorithm for B-system assembly and steps to obtain mathematical model of the B-system have been developed. Integration of mathematical models of conversion system into the complete model of a multi-phase power system has been explained and evaluation of computational efficiency of parallel computation techniques for the developed model of an AC-DC-AC converter has been performed. The presented modelling method can be employed in the design phase of smart grids, for power quality and conducted emission analysis. 

  • 31.
    Bengtsson, Tomas
    et al.
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Kumar, Shashi
    Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems.
    A Survey of High Level Test Generation: Methodologies and Fault Models2004Report (Other academic)
    Abstract [en]

    Test of electronic circuits for fabrication fault is important if the circuits should have reasonable quality. To make the development of complex circuits manageable, methods and computer tools that work on a high level of abstraction are required. Development of test methodologies have however been left behind the increase of abstraction level used for the design. There is a risk that testing aspects become a bottle neck in the development of complex circuits if the test methods fail to cope up with the abstraction level for the design methods.

    System on Chips is often used to implement complex systems. The methods to make test for those circuits consists of three main parts. First part is the development of test procedures for the cores, which is preferably made at high level of abstraction. This area includes fault modeling and test pattern generation at behavior level of abstraction or higher as well as design of extra logic for insertion to facilitate testing. The second part requires development of methods to test the interconnections among cores.

    The third part is to develop a test access mechanism which can be used to test the cores and interconnections within a SoC. This survey is about development of fault models and test pattern for testing of cores at higher level of abstraction than logic level. A promising architecture for the interconnection is the Network on Chip architecture in which cores are interconnected through a network of packet switched switches. Testing of these switches will be identical to testing of a core.

    Models of physical and fabrication faults are needed at higher levels of abstraction in order to be able to develop test patterns from functional or behavioral description of cores. Researchers have experienced that the stuck-at fault model works quite well at logic level. But no such fault model has been discovered at behavioral or higher level which is universally accepted. Several behavior level fault models have been proposed. One of the proposed models is the variable bit stuck-at fault model. This model has been derived from the logic level stuck-at fault model but it does not give adequate coverage of physical faults. Physical faults inside components, like arithmetic and logic units, cannot be modeled in this way. With the methods proposed so far, knowledge of the logic level implementation of the unit is needed to model such faults. In this survey, we describe three proposed classes of fault models - fault models derived from logic level stuck-at faults, operator mutation faults and physically induced faults.

    Testing at higher level of abstraction has a lot in common with software testing. The pattern generation methods can be classified into two main categories, namely, code oriented methods and fault oriented methods. Methods can also be classified into methods that use fault simulation for test pattern generation or use algorithmic approach for test pattern generation. These two classification approaches are orthogonal leading to four different categories of methods. We have tried to put existing approaches in this category. We also survey the experimental setups developed and used by various research groups for carrying out research in high level testing. Some very interesting conclusions can be drawn about the efficacy of various categories of test pattern generation methodologies for testing various types of systems at behavioral level. An interesting conclusion is that code oriented methods are not very effective for testing data dominated circuits at behavioral level.

    Approaches followed by five different research groups working in the area of high level testing is also summarized and compared. We feel that the hierarchical test pattern generation method, which works simultaneously on several levels of abstraction, to generate test patterns is the most promising of these methods. We also feel that new fault models need to be developed to make testing at higher level of abstraction achieve adequate coverage of physical faults and become practically useful.

  • 32.
    Bengtsson, Tomas
    et al.
    Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems.
    Kumar, Shashi
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. Jönköping University, School of Engineering, JTH. Research area Robust Embedded Systems.
    Ubar, R.
    Jutman, Artur
    Peng, Zebo
    Test methods for crosstalk-induced delay and glitch faults in network-on-chip interconnects implementing asynchronous communication protocols2008In: IET Computers and Digital Techniques, ISSN 1751-8601, Vol. 2, no 6, p. 445-460Article in journal (Refereed)
  • 33.
    Berggren, Emil
    et al.
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics. Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Gustafson, Tobias
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Jämförelse av GPGPU-ramverk och AES-metoder: Jämförelse av GPGPU-ramverk och AES-metoder för att besvara vilka GPGPU-ramverk och vilken AES-metod som bör rekommenderas för AES-kryptering med GPGPU2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract Background - Processors today are approaching the limit for how high clockfrequences they can run. This has led to that instead of trying to make them run faster they are instead made with multiple cores so they can utilize parallelization by running several threads in parallel. However aside from the CPU there is still the graphics card which has a large amount of unused computing power for long durations of time while the computer is active. While a GPU might not have as quick processors it instead has several thousands of them at the same time than a CPU which have led to the development of GPGPU-frameworks to use that potential parallelization. The profit in this lies in using algorithms and code functions that got high potential parallelization, one of which is the AES encryption algorithm. AES is one of the most widely used encryption algorithms today and also considered to be one of the most secure.

    Purpose – By using GPGPU-acceleration the encryption speed of AES is higher than by using a traditional CPU approach. To make the GPU-acceleration as effective as possible this study looks into which AES-method and which GPGPU-framework that should be chosen during development.

    Method – This study makes two literature studies to determine which AES-methods and which GPGPU-frameworks that are viable for GPU-acceleration of AES. Afterwards this study conducts experiments to determine which of these GPGPU-frameworks are the most effective.

    Findings – The conclusion drawn from the literature study is that the CTR-method among the AES-methods is preferable due to its parallelization potential and high security measures. Among the current GPGPU-frameworks only two frameworks satisfies the criteria determined from the literature study and those are CUDA and OpenCL. From the experiment the conclusion is thereafter drawn that of the two GPGPU-frameworks CUDA is more effective due to the bandwidth limits that OpenCL have compared to CUDA. This conclusion is valid on at least the tested graphics card, GTX 560.

    Implications – CUDA is faster at larger file sizes than OpenCL due to limited data transfer speed in OpenCL on a GTX 560.

    Limitations – The experiments were only conducted on one graphics card from Nvidia due to hardware constraints in that CUDA can only be run on Nvidia hardware. Due to this hardware constraint and Nvidia’s lack of support in their tools for debugging and profiling of OpenCL the results from the testing of OpenCL couldn’t be verified using external tools.

    Keywords – Processor, GPGPU, AES, CTR, OpenCL, CUDA, GPGPU-framework

  • 34.
    Bernhard, J.
    et al.
    ITN, Campus Norrköping, Linköping University, Norrköping, Sweden.
    Carstensen, Anna-Karin
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    "Real" experiments or computers in labs - Opposites or synergies?: Experiences from a course in electric circuit theory2017In: Proceedings of the 45th SEFI Annual Conference 2017 - Education Excellence for Sustainability, SEFI 2017 / [ed] J. Bernardino, J. Rocha,J. C. Quadrado, European Society for Engineering Education (SEFI) , 2017, p. 1300-1307Conference paper (Refereed)
    Abstract [en]

    In this study we report from our experiences designing and re-designing a lab where engineering students studied transient response in electric circuits. In the first version of the lab students had difficulties doing the mathematical modeling of the experimentally measured graphs as it required students' to link the time- and frequency domains as well as the object/event and theory/model worlds simultaneously. In the re-designed lab some computer simulations were included together with the original experiments on real circuits. The simulations opened up for learning and enabled students to establish links that are hard access directly with real experiments. Still doing real experiments is important to secure students ability to make links between models and theories and the physical reality. This study demonstrates that synergetic learning effects can be achieved by a careful design using an insightful combination of real experiments and computer simulations. Hence, we propose that the question of "real" experiments or "virtual" labs using computer simulations are best for students' learning is not an either or question. Rather, it is a question of finding the right blend to achieve synergetic effects.

  • 35.
    Bernhard, Jonte
    et al.
    ITN, Campus Norrköping, Linköping University, Norrköping, Sweden.
    Carstensen, Anna-Karin
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics. Jönköping University, School of Engineering, JTH. Research area Computer Science and Informatics.
    Karlsson, Kjell
    ITN, Campus Norrköping, Linköping University, Norrköping, Sweden .
    Alternating currents first: Experiences from designing a novel approach to teaching electric circuit theory2016In: 44th Annual Conference of the European Society for Engineering Education - Engineering Education on Top of the World: Industry-University Cooperation, SEFI 2016, European Society for Engineering Education (SEFI) , 2016Conference paper (Refereed)
    Abstract [en]

    BACKGROUND: Commonly in electric circuit theory courses, circuit laws are first introduced in the context of direct current (DC) electricity and first thereafter are alternating currents (AC) introduced. The extension of DC-theory to AC is quite easily done mathematically but is conceptually difficult for students. Engineering students have difficulties in understanding phase relationships and phasor representations in AC-electricity. Indeed, it has been suggested that phase should be seen as a threshold concept.

    PURPOSE: The purpose of this study was to investigate if a re-designed introductory electric circuit course could improve students’ understanding of important concepts in AC-electricity.

    METHOD and COURSE DESIGN: The course was re-designed introducing AC and DC electricity simultaneously. DC was introduced as a special case of AC with requency equals zero. The re-designed course was taught for the first time during the spring semester 2014 and a new textbook was written. A conceptual test was developed and first administered in 2013 to serve as a baseline and in subsequent years to evaluate the revised course. In 2014 the students’ courses of action in selected lab-groups were video-recorded.

    RESULTS: In the first revision cycle many students had difficulties to complete the labs in time. Students revealed a mixed response towards the revised course and the results on the conceptual test showed neglible improvement. In the second cycle revisions the number tasks were reduced and focus was laid on tasks that were identified as most important for contributing to the development of student understanding. As a result the learning gain improved with an effect size (Cohen’s delta) of 0.56. Also the course and the textbook were very well appreciated. In the third cycle only small revisions are made.

    CONCLUSION: The results show that that AC-electricity can be taught concurrently with DC. However, two revisions cycles was needed which demonstrates that curriculum development needs a sustained effort over a considerable period of time with continuous revisions in light of gained experiences. In further revision we will continue to refine the labs and to develop appropriate interactive lecture demonstrations for the lectures and to develop the problems.

  • 36.
    Bertilsson, Tobias
    et al.
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Johansson, Romario
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Undersökning om hjulmotorströmmar kan användas som alternativ metod för kollisiondetektering i autonoma gräsklippare.: Klassificering av hjulmotorströmmar med KNN och MLP.2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of the study is to expand the knowledge of how wheel motor currents can be combined with machine learning to be used in a collision detection system for autonomous robots, in order to decrease the number of external sensors and open new design opportunities and lowering production costs.

    Method – The study is conducted with design science research where two artefacts are developed in a cooperation with Globe Tools Group. The artefacts are evaluated in how they categorize data given by an autonomous robot in the two categories collision and non-collision. The artefacts are then tested by generated data to analyse their ability to categorize.

    Findings – Both artefacts showed a 100 % accuracy in detecting the collisions in the given data by the autonomous robot. In the second part of the experiment the artefacts show that they have different decision boundaries in how they categorize the data, which will make them useful in different applications.

    Implications – The study contributes to an expanding knowledge in how machine learning and wheel motor currents can be used in a collision detection system. The results can lead to lowering production costs and opening new design opportunities.

    Limitations – The data used in the study is gathered by an autonomous robot which only did frontal collisions on an artificial lawn.

    Keywords – Machine learning, K-Nearest Neighbour, Multilayer Perceptron, collision detection, autonomous robots, Collison detection based on current.

  • 37.
    Berzisa, Solvita
    et al.
    Riga Technichal University.
    Bravos, George
    University of Manchester.
    González, Tania Cardona
    Everis, Valencia.
    Czubayko, Ulrich
    SIV.AG, Roggentin.
    España, Sergio
    Polytechnic University of Valencia.
    Grabis, Janis
    Riga Technical University.
    Henkel, Martin
    Stockholms universitet.
    Jokste, Lauma
    Riga Technical University.
    Kampars, Janis
    Riga Technical University.
    Koç, Hasan
    University of Rostock.
    Kuhr, Jan-Christian
    SIV.AG, Roggentin.
    Llorca, Carlos
    Fresh T Ltd, Daresbury.
    Loucopoulos, Pericles
    University of Manchester.
    Pascual, Raúl Juanes
    Everis, Valencia.
    Pastor, Oscar
    Polytechnic University of Valencia.
    Sandkuhl, Kurt
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. Jönköping University, School of Engineering, JTH. Research area Information Engineering.
    Simic, Hrvoje
    Croz doo, Zagreb.
    Stirna, Janis
    Stockholms universitet.
    Valverde, Francisco Giromé
    Polytechnic University of Valencia.
    Zdravkovic, Jelena
    University of Rostock.
    Capability Driven Development: An Approach to Designing Digital Enterprises2015In: Business & Information Systems Engineering, ISSN 1867-0202, Vol. 57, no 1, p. 15-25Article in journal (Refereed)
    Abstract [en]

    The need for organizations to operate in changing environments is addressed by proposing an approach that integrates organizational development with information system (IS) development taking into account changes in the application context of the solution. This is referred to as Capability Driven Development (CDD). A meta-model representing business and IS designs consisting of goals, key performance indicators, capabilities, context and capability delivery patterns, is being proposed. The use of themeta-model is validated in three industrial case studies as part of an ongoing collaboration project, whereas one case is presented in the paper. Issues related to the use of the CDD approach, namely, CDD methodology and tool support are also discussed.

  • 38. Besselmann, Thomas
    et al.
    Rostalski, Philipp
    Baric, Miroslav
    Lagerberg, Adam
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Morari, Manfred
    A Benchmark on Hybrid Control of a Mechanical System with Backlash2007Report (Other academic)
  • 39.
    Birkehag, Johanna
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Sohlman, Sofie
    Jönköping University, School of Engineering, JTH, Industrial Engineering and Management.
    Exploring the ICT market with learning´s from a leading market: With an internationalization perspective2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose - The purpose of the thesis is “To explore the Thai ICT market and identify

    differences with the leading market” Where the research questions are:

    1. How are the main actors influencing the ICT market in Thailand?

    2. How can the ICT market in Thailand be improved by identifying the gaps to

    the leading market?

    Method – For reaching the purpose a qualitative case study has been carried out,

    methods that are used are interviews, observations, document studies and literature

    study. Secondary data has been collected from document studies and was compiled in

    excel documents. Primary data has been collected from interviews, employees at

    Ericsson in Thailand has contributed when gather data about organizational

    culture. Interview with representatives from institutions in Thailand were made to

    achieve current data. Interviews were made to receive a primary source of information

    with high focus on the thesis subject and strengthen by secondary data.

    Findings – The most urgent problem to improve the ICT market in Thailand is to

    develop the infrastructure. The infrastructure needs to be developed in rural areas and

    urban areas. Institutions in ICT need to do active work on the market in order to

    expand and develop the market. Service operator’s needs to standardise and offer less

    price plans in order to minimize confusion among the consumers. The consumers

    need to increase their usage of ICT services in order to decrease the gap to the leading

    ICT market. One solution could be that the government push the development with all

    actors on the ICT market. Changing the foreign business act can lead to investments

    needed to expand the infrastructure. Further, creating a demand of higher technology

    from the consumer’s perspective will pressure the actors to develop robust network of

    high technology and benefit future development of technology.

    Implications – This study has been carried out on location in Thailand but

    communication has not been made in the national language in Thailand, which can

    contribute to misunderstandings of data. The study´s result is strengthened by being

    on location in Thailand, gathering primary data by interviews and do observations on

    place in the target environment.

    Delimitations – The delimitations have been made to look at the ICT market from

    Thailand’s perspective with learning’s from Sweden. Further, delimitations to explore

    the main actors that are influencing the market has been done. A market has many

    environmental forces and they needed to be restricted in this study.

  • 40.
    Björk, Marie
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Testdriven utveckling – En utvärdering av Jordbruksverkets metod för systemutveckling2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 41.
    Björklund, Thomas
    et al.
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Wahlund, Christer
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    GIS-IMPLEMENTATION AV BING MAPS TILL WINDOWS 8 OCH WINDOWS PHONE 82013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis has been performed at consulting firm Sweco Position in Jönköping. The thesis is divided into two main sections: theoretical and practical. The theoretical section contains an investigation into the possibilities of implementing a geographical information system (GIS) for administrations of wells with the integration of Bing Maps for Windows 8 and Windows Phone 8. The practical work comprises the development of a prototype for Windows 8 and Windows Phone 8.

    The students review the Model-View-ViewModel-pattern on a theoretical basis, compares the differences between Windows 8 Pro and Windows RT. The thesis also contains and investigation into the pros and cons of a web based application compared to a native one.

    The result of the thesis will be comprised of a GIS-service developed in C# in co-operation with XAML with the options of saving data locally and a WMS-based service layer for Windows 8 and Windows Phone 8.

  • 42.
    Bohman, Helena
    Jönköping University, Jönköping International Business School, JIBS, Economics.
    Income Destribution and the Diffusion of Networks: An Empirical Study of Brazilian Telecommunications2008In: Telecommunications Policy, ISSN 0308-5961, E-ISSN 1879-3258, Vol. 32, no 9-10, p. 600-614Article in journal (Refereed)
  • 43.
    Boidi, Krishna Verma
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Design, Simulate and Prototype Data Decision System for the Smart Universal Gateway for e-HealthCare System: Master Thesis2011Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • 44.
    Borchardt, Ulrike
    et al.
    University of Rostock.
    Sandkuhl, Kurt
    Jönköping University, School of Engineering, JTH. Research area Information Engineering.
    Stamer, Dirk
    University of Rostock.
    MeinKosmos - Konzept zur Realisierung des KOSMOS-Portals zur medialen Unterstützung2015In: Öffnung der Hochschule durch Wissenschaftliche Weiterbildung: Werkstattberichte aus dem Projekt KOSMOS der Universität Rostock / [ed] Freytag-Loringhoven, Konstantin von; Göbel, Stefan, München: Akademische Verlagsgemeinschaft München, 2015, p. 233-252Chapter in book (Other academic)
  • 45.
    Borg-Rosén, Mikael
    et al.
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Rasmussen, David
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Bordsbokningssystem i HTML 52012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Det finns idag få system som ger en god överblick av en restaurangs bokningar och bordsplaceringar. Oftast används papper och penna som ställer till med problem när kunder avbokar, ändrar deras bokning eller helt enkelt inte kommer till restaurangen. Det är även svårt att avgöra huruvida restaurangen är fullbokad eller ej.

    Denna rapport behandlar utvecklingen av ett webbaserat bordsbokningssystem för restauranger på uppdrag av en restaurangägare i Jönköping. Systemet ska ge en grafisk överblick av en restaurangs bokningar och hur alla bord ska stå placerade under en kväll. Då systemet webbapplikationen ska ha flera användare, som använder olika enheter, krävs det att systemet ska vara plattformsoberoende.

    Med hjälp av HTML5 undersöks det huruvida det går att göra detta system offlinekompatibelt, då uppdragsgivaren önskar att systemet är åtkomligt då Internetuppkopplingen försvinner. Det undersöks även hur en applikation görs användarvänlig och lättmanövrerad samt hur kommunikationen mellan klient och server görs mest effektivt.

    Projektet är uppdelat i fyra delar; grafiskt användargränssnitt, webbapplikation, datahantering och serverkommunikation, som i sin tur är indelade i två kategorier; klient och server. De två kategorierna användes som en bas för hela projektets gång, från litteraturgenomgång och forskning till implementation.

    Den slutliga webbapplikationen blev ett plattformsoberoende och offlinekompatibelt bordsbokningssystem, där användaren får en grafisk överblick av en vald dags bokningar samt bordsplaceringar.

  • 46.
    Bratt, Carl
    et al.
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Carlbäck, Simon
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    LoRa 433 MHz eller LoRa 868 MHz?: En jämförelse av paketförluster hos LoRa 433 MHz och LoRa 868 MHz2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 47.
    Brickarp, Erik
    et al.
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Josefsson, Oscar
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Kontrollbox för häftare A61022007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    This report describes the construction and development of a control box, which is a tool for testing and verifying a certain model of Rapid’s built in staplers (model A6102). Basically the function of the control box is to interpret any errors that may occur in the stapler and to make it possible to test fire the stapler.

    The control box should be able to communicate with the stapler using a specialized communication protocol. The different data such as errors, firmware etc. from the stapler is presented in plain language on a display. Additional functions worth mentioning is the possibility to choose between several different firing modes and strengths of the stapler using two multiswitches.

    Our ambition with the control box was to create a construction that was suitable to build in small series, provide a good documentation and to write a program that would be easy to modify in case someone would like to add new functions in the future. Since we focused on making the box as easy as possible to assemble we have not prioritised to find the cheapest possible solution using cheap components. Instead we have chosen multifunctional components that individually can do as much of the work as possible such as the display and the microprocessor.

  • 48.
    Cailean, Diana Andreea
    et al.
    Jönköping University, Jönköping International Business School, JIBS, Business Informatics.
    Sharifi, Kobra
    Jönköping University, Jönköping International Business School, JIBS, Business Informatics.
    The impact of social networking technology on students2014Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Social networking includes social networking sites (SNSs) as well as apps. The purpose of this thesis was to investigate the impact of social networking tech-nology on students.  The  research questions  focused  how university students experience  their  interaction  with  social  networking  regarding  advantages and disadvantages, and for what purposes they are using it personal, professional or study). A quantitative surveys study was used and data was collected through online questionnaires delivered via SNSs, e-mails and through delivery and col-lection  method. 122  valid  responses  were collected  and 17 invalid responses were discarded. The questionnaire framework was built by means of the con-cept of ease of use from Technology Acceptance Model (TAM) and the five values of Uses and Gratification Theory; “purposive value”, “self-discovery”, “maintaining interpersonal interconnectivity”, “social enhancement value” and “entertainment value”. The findings showed that 64% considered themselves to be positively influenced by SNSs and 27% to be neither positively or nega-tively influenced. Only 11 % considered that SNSs influenced them negatively. According to our findings, some of the most frequent advantages are keeping in touch with family and friends, cost and time efficient, easy to use and entertaining. And for the disadvantages, the responses were mostly time consuming, health  issues,  privacy  issues,  addiction  to  technology  and  cyber  bulling.  The majority of respondents reported using SNS firstly for personal use, secondly for study use and the professional use was the least selected. 88% of the respondents thought that it is easy to use SNSs. The purposive value of SNS use was to get information, the self-discovery value to learning about oneself and others, for the maintaining interpersonal connectivity, to stay in touch, and for the entertainment value, it was to pass time away when bored. The results indicated  that  the  social  enhancement  value  was  not  very  important  for  the  respondents.

  • 49.
    Cardestål, Anna
    et al.
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Kara, Bhavina
    Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering.
    Studie av olika metoder för att mobilanpassa stora CMS webbplatser2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The work has been performed in collaboration with Jönköping University. The aim of this work has been to study different methods for mobile adaption of large CMS (Content Management System) websites, where the website of Jönköping has been used as a reference.

    The website at Jönköping University is used daily by current students, faculties, prospective students and external users. Research carried out by the University shows that the use of mobile devices has increased, and it is therefore necessary to examine the mobile adaptation of the large CMS website.

    A layout proposal has been suggested by determining which method that is most relevant for mobile adaption of a large CMS website. The website should adapt to different resolutions and devices according to how the existing website is based in the current situation. Emphasis has been put on menu operations, to navigate through the large website in a user-friendly way. This is going to be a basis for the University in the development of the mobile website.

    Based on the results of the choice of method for mobile adaptation, the students have come to the conclusion that the relevant method for a large CMS website is responsive web design. But the choice of method for mobile adaptation can also be based on the need, purpose and target group that a company or organization has with the website.

    The work ends with a conclusion and discussion where their opinions have been raised. The conclusion that the students have come up with is that the benefits of responsive web design and the solution of the menu navigation, is the right option for Jönköping University website.

  • 50.
    Carlsson, Fredrik
    et al.
    Jönköping University, School of Engineering.
    Alexander, Fransson
    Jönköping University, School of Engineering.
    Smarta sensorer i bilindustrin: En undersökning av två sensorlösningar för växelspakar2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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