Sökning: "WiFi Direct"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden WiFi Direct.

  1. 1. Control system and simplified timesynchronization for heterogenous IoT systems with medium time requirements

    M1-uppsats, KTH/Hälsoinformatik och logistik

    Författare :Jemma Touma; Simon Hejdenberg; [2024]
    Nyckelord :Internet of Things; time synchronization; wireless sensor networks; network time protocol; Android; Bluetooth; WiFi Direct;

    Sammanfattning : The company QTPIE conducts research on drivers and their unconscious reactions when driving. To help, they use smart devices that today must be individually handled at the start and end of a run, and have individually set timestamps, which can lead to differences between the units when data is entered and collation of the units' data after a run. LÄS MER

  3. 2. Evaluation of Geopositioning Using Frequency Responses From Radio Propagation Measurements

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

    Författare :Jessica Ye; Johan Lesko; [2023]
    Nyckelord :;

    Sammanfattning : Satellite reliant navigation systems may struggle in urban environments as tall buildings mayobstruct necessary direct lines of sight with satellites. There have been multiple studiesexamining how WIFI fingerprinting may be used for indoor positioning. LÄS MER

  4. 3. Indoor Positioning and Machine Learning Algorithms

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Raavi Uttarwar; Julián Valentín; [2021]
    Nyckelord :Indoor Positioning; Machine Learning; Bluetooth Low Energy; Technology and Engineering;

    Sammanfattning : This master thesis focuses around improving the efficiency and accuracy of existing indoor positioning systems with the help of Machine Learning (ML). Our work is based on Bluetooth Low Energy (BLE) v5.1. Position estimation is currently being carried out using the Least-Squares (LS) method in the framework. LÄS MER

  5. 4. Internet-of-Things in Low Voltage Electricity Grids

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Henrik Palmlund Wahlgren; [2016]
    Nyckelord :Internet of Things; IoT; Smart Grids; Smart Grid; SGAP; Smart Grid Architecture Model; Energy; Demand Response; Intel Edison; Embedded Systems; 6LoWPAN; Mesh radio; Arduino; IEEE 802.15.4; Low Voltage Electricity Grid; Electricity Grid; Solar Power; Automation; Inverter control; Distributed Systems; Distributed Intelligence; Smart Meters; AMR; Automatic Meter Reading; AMI; Advanced Metering Infrastructure; Technology and Engineering;

    Sammanfattning : When evaluating future technologies for smart metering and automatic meter reading (AMR) E.ON Elnät Sverige AB has set up a pilot to test a communication technology supplied by Connode AB. Connode have developed a mesh radio solution based on 6LoWPAN, IPv6 over Low Powered Wireless Personal Area Network. LÄS MER

  7. 5. Comparison of link layer of BLE and 802.15.4 : Running on Contiki OS

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Prithviraj Narendra; [2014]
    Nyckelord :;

    Sammanfattning : There has been extensive research in the low power Wireless Sensor Network (WSN) community with 802.15.4 based platforms. A major factor for this is the support for 802. LÄS MER