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  1. 1. Inductive fast charging of IoT devices : An in-depth analysis of short-range wireless charging technologies based on induction

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Franz Wikner; [2024]
    Nyckelord :Electromagnetic power transfer; Inductive power transfer; Short distance WPT;

    Sammanfattning : In the era of Internet of things (IoT), sensor-equipped devices exchange data over networks. In battery powered IoT devices, the lifespan of the devices is often much longer than the battery life, leading to multiple costly and environmentally hazardous battery replacements during the operational life of the devices. LÄS MER

  3. 2. Digital Twins for Verification and Validation of CPS

    Kandidat-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

    Författare :Ahmed Yasser; Axel Broberg; [2023-09-21]
    Nyckelord :Digital Twin; Standardization; Practices; AI; Requirements Engineering; CPS; V V;

    Sammanfattning : This paper proposes standardizing the usage and practices of Digital Twins (DTs) for the seamless digital-tophysical transition of Cyber-Physical Systems (CPS) to assure their safety. It recommends adopting Artificial Intelligence (AI) methods and following Requirements Engineering principles (RE) for strong Verification and Validation (V&V) processes. LÄS MER

  4. 3. Optimizing Cyber Security Gap Analysis for Legacy Railway Control Systems : A Proposed New Gap Analysis Process using CIS Benchmarks™

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Weicheng Xu; [2023]
    Nyckelord :;

    Sammanfattning : The global concern over cyber security threats to railway control systems is growing due to the factual and potential threats that could lead to severe consequences, including disruption, derailment, and collision. Legacy railway control systems, which were not originally designed with cyber security in mind, are particularly vulnerable to common cyber attacks. LÄS MER

  5. 4. Detection and Analysis of Anomalies in Tactical Sensor Systems through Structured Hypothesis Testing

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Fredrik Ohlson; [2023]
    Nyckelord :Tactical sensor systems; Sensor fusion; Model based diagnostics; Hypothesis testing; Taktiska sensor system; Sensor fusion; Modellbaserad diagnostisering; Hypotesprövning;

    Sammanfattning : The project explores the domain of tactical sensor systems, focusing on SAAB Gripen’s sensor technologies such as radar, RWR (Radar Warning Receiver), and IRST (InfraRed Search and Track). The study employs structured hypothesis testing and model based diagnostics to examine the effectiveness of identifying and isolating deviations within these systems. LÄS MER

  7. 5. Energy efficiency of smelting of scrap aluminium in HPDC facilities : Available and upcoming technologies

    Master-uppsats, Linköpings universitet/Energisystem

    Författare :Bogdan Radu Racsi; [2023]
    Nyckelord :high pressure die casting; HPDC; energy efficiency; cast house remelting; internal aluminium scrap; melting furnace; melting and holding furnace; drivers; barriers;

    Sammanfattning : The aluminium industry is anticipated to witness a surge in demand, with projectionsof a two to three-fold increase by 2050. Meeting environmental objectives andaddressing the growing emphasis on sustainability from both the industry andconsumers seeking eco-friendly products present significant challenges. LÄS MER