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Indoor mapping and navigation using geographic information systems
Goran Sekirarski, 2016, diplomsko delo/naloga

Opis: This study present proposal work with prototypes that use Radio-Frequency Identification (RFID) and NFC technology for indoor navigation using mobile device with help by using geographic information system to create geotagged maps to building in this diploma thesis. The study used an experimental approach with open source software and hardware engineering tools and technologies which minimized cost. A preliminary experiment with RFID and NFC tools helped to understand the compatibility of certain RFID infrastructure with NFC and helped to determine if and how NFC could be used. The capability of NFC in leveraging its low-cost infrastructure of passive tags, its embedment in mobile devices and the ubiquity of the mobile device provided a cost effective solution with good accuracy.
Ključne besede: Geographic information system, CAD, RFID, Wi-Fi, Near Field Communication, indoor navigation, indoor positioning, NFC Internal, mobile device
Objavljeno v DKUM: 24.04.2017; Ogledov: 2160; Prenosov: 146
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Simulation of line scale contamination in calibration uncertainty model
Marjan Družovec, Bojan Ačko, Andrej Godina, Tatjana Welzer Družovec, 2008, izvirni znanstveni članek

Opis: Precise calibration of quartz line scales is very important for assuring traceability of microscopic measurements. Very significant influence in calibration uncertainty budget is represented by uncertainty of line centre detection. Line centre is usually detected through video signal processing using different types of algorithms. This paper is presenting calibration procedure that was developed in the Laboratory for Production Measurement at the Faculty of Mechanical Engineering in Maribor. It is focused in uncertainty analysis and especially in the influence of line scale contamination on determination of line centre position. Different types of line scale contamination like dirt spots, scratches, line edge incorrectness, and line intensity were simulated in order to test the ability of the line centre detection algorithm to eliminate such influences from the measurement results.
Ključne besede: line scale, calibration, uncertainty, video-positioning system, simulation
Objavljeno v DKUM: 31.05.2012; Ogledov: 1629; Prenosov: 151
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