Sökning: "Wi-Fi fingerprinting"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Wi-Fi fingerprinting.

  1. 1. Wi-Fi fingerprinting as a mean to measure building occupancy : A case study in an office environment

    Master-uppsats, KTH/Transportplanering

    Författare :Johan Bexhorn; Karl Kvarnefalk; [2023]
    Nyckelord :Wi-Fi tracking systems; Wi-Fi fingerprinting; footfall analytics;

    Sammanfattning : The task of collecting visitor data in an indoor environment and therein determining the occupancy of a building is an extensive task. Conventional methods are expensive, time-consuming, and often lack the ability to produce data in longer time series. Further, they often require disruption of the studied area as equipment must be deployed. LÄS MER

  3. 2. Learned Multi-Sensor Indoor Positioning of Mobile Devices

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Christoffer Kjellson; [2021]
    Nyckelord :Indoor Positioning; Deep Learning; Fingerprinting; RSSI; Machine Learning; Pedestrian Dead Reckoning; Kaggle; Sensor Fusion; SDAE; LSTM; Technology and Engineering; Mathematics and Statistics;

    Sammanfattning : Attenuation of the microwave signal used in the Global Positioning System (GPS) due to interaction with building structures complicates the task of accurate indoor positioning. For this reason, research on alternative approaches is being performed at universities and companies worldwide. LÄS MER

  4. 3. Multi-Factor Mobile based Access Control Solution

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

    Författare :August Larsson; Alvin Ohlsson; [2020]
    Nyckelord :Indoor positioning Wi-Fi Fingerprinting Magnetic Fingerprinting; Technology and Engineering;

    Sammanfattning : In this thesis, alternatives for replacing an RFID card + PIN based access controlsolution for office buildings with a mobile applications are evaluated. The proposedsolutions are based on a probabilistic fingerprinting approach where distributionsof RSSI are approximated and stored in a fingerprint database during an initialoffline phase. LÄS MER

  5. 4. Positional Quality of Service using Dynamic Collection Fingerprinting

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Datavetenskap

    Författare :Fredrik Grönlund; [2017]
    Nyckelord :quality of positioning; mining; wi-fi; wifi; fingerprinting; positioning; tunnel; underground;

    Sammanfattning : Positioning in environments where GPS is absent is a field currently under intensive research.Systems are currently being researched or designed for indoor use, often relying on ultra-wideband radio, ultrasound, fingerprinting or Wi-Fi.For underground mining, the problem is magnified, as installation of new equipment is expensive. LÄS MER

  7. 5. Feasibility Study of Indoor Positioning in a Hospital Environment Using Smartphone Sensors

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Joakim Skytte; [2017]
    Nyckelord : Indoor positioning ; smartphone; IMU; Wi-Fi; Dead Reckoning ; Inomhuspositionering; tröghetsnavigering; wifi;

    Sammanfattning : This thesis is a feasibility study of contemporary indoor positioning approaches in an hospital environment using sensor available on Android phones together with Wi-Fi fingerprintingand map information. The purpose is to determine the resolution of pedestrian indoor positioning and whether it is sufficient for room level accuracy. LÄS MER