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Performance-oriented UWB RTLS decision-making approach
Simona Šinko, Enej Marinič, Blaž Poljanec, Matevž Obrecht, Brigita Gajšek, 2022, original scientific article

Abstract: When introducing new technologies, companies are repeatedly faced with choosing between solutions from different providers. Regardless of all the good technical characteristics of the technology, if it is chosen inappropriately, it can prove to be a cost driver instead of something that brings added value to the system. Aware of this, we considered selecting a real-time location system (RTLS) based on Ultra-wideband technology in the indoor work environment. In practice and theory, it has been proven that the introduction of the RTLS can have highly positive effects on performance and business sustainability indicators. When reviewing the literature, it was noticed that authors solely focus on the technical properties of the systems and prices when giving guidelines on selecting the optimal RTLS. This article aims to provide advanced guidelines for UWB RTLS selection, proposing a phased selection process which is the main novelty proposed and investigated in this research. The guidelines are based on fragmented recommendations in the scientific literature that have been identified, gathered, considered, and reasonably allocated to the advanced performance-oriented phased selection process. In practice, this approach enables decision-makers to choose the most efficient and most appropriate UWB RTLS for specific logistics systems.
Keywords: decision-making, location data, RTLS, UWB, technology selection
Published in DKUM: 04.07.2024; Views: 138; Downloads: 11
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Primerjava natančnosti dveh različnih testnih UWB RTLS : diplomsko delo univerzitetnega študijskega programa
Enej Marinič, 2022, undergraduate thesis

Abstract: V podjetjih je za dvig učinkovitosti ključnega pomena sledenje materialov, polizdelkov in končnih izdelkov. Sistemi, ki omogočajo sledenje v notranjih prostorih, so sistemi za notranje sledenje RTLS (angl. Real Time Location Systems). Diplomsko delo analizira razlike v natančnosti lociranja objektov s pomočjo testnih RTLS dveh različnih proizvajalcev, dostopnih v Sloveniji. Razlike v meritvah sistemov nastajajo zaradi komponent, ki sestavljajo RTLS in zaradi prostora, v katerem se izvajajo meritve. Dejavniki, ki vplivajo na natančnost meritev, so opisani v teoretičnem delu naloge. V praktičnem delu naloge je opisana izvedba meritev, za katere sta bila uporabljena dva testna RTLS, katerih delovanje temelji na UWB (angl. Ultra Wideband) tehnologiji. Analiza podatkov z uporabo statističnih testov je pokazala, da med testnima sistemoma ni statistično značilnih razlik med izmerjenimi vrednostmi koordinat x, obstajajo pa statistično značilne razlike med izmerjenimi vrednostmi koordinat y. Odstopanja izmerjenih vrednosti od dejanskih vrednosti obeh koordinat v 20 % meritev za oba analizirana sistema niso bila v obljubljenem intervalu proizvajalcev. Populacijsko povprečje izvedenih meritev se statistično značilno razlikuje od napake, ki jo poročata proizvajalca. Pri testnih sistemih se lahko pričakujejo odstopanja od zagotovljene natančnosti implementiranega industrijskega sistema. Vzrokov za odstopanja nismo preučevali.
Keywords: meritve, natančnost, RTLS, lociranje, UWB
Published in DKUM: 03.11.2022; Views: 462; Downloads: 30
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