1801. Indoor navigation with a SmartphoneDrago Torkar, 2024, independent scientific component part or a chapter in a monograph Abstract: This chapter presents a cost-effective system for indoor localization and navigation that does not require the use of satellite positioning or data communication networks. The system, implemented as a smartphone app, relies on QR codes that are pre-generated and attached to the walls inside the building. By utilizing the information from these codes and the smartphone’s inertial motion unit (IMU) sensors processed by the Pedestrian Dead-Reckoning (PDR) algorithm, the user’s current position can be determined. The Dijkstra navigation algorithm is then used to guide the user to the desired destination. The smartphone app can also be used as a healthcare logistics service in mass-casualty incidents for collecting and reporting georeferenced triage decisions to the cloud.
Keywords: internet thinks, indoor navigation, systems, QR codes
Published in DiRROS: 02.07.2024; Views: 358; Downloads: 178
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1802. Explainable anomaly detection of 12-Lead ECG signals using denoising autoencoderRok Hribar, Drago Torkar, 2024, independent scientific component part or a chapter in a monograph Abstract: The basic idea was to create a proof of concept demonstrating that the indoor navigation and localisation is possible using only passive tags. For this purpose, a smartphone navigation app was developed to be used in inner parts of the buildings and which can operate with no satellite positioning service available and no communication network present. The satellite navigation systems (GPS, GLONASS, Galileo, BeiDou, QZSS, IRNSS) inside buildings, at least on lower floors and cellars, in central parts, and away from windows, usually do not work, or their accuracy is very reduced due to a small number of visible satellites. The communication networks (WiFi, LTE, 5G…) might not be available in some circumstances such as catastrophic incidents, power reductions, or similar, which disables the localisation systems based on them. The purpose of the smartphone app was twofold. First, to develop a reliable, simple-to-use, and cheap indoor navigation system that could be used in large buildings like hospitals, shopping malls, trade centres, fairs, etc. where no other positioning service is available. Second, to develop an indoor position reporting system that can be used in accidents and mass-casualty incidents for reporting triage decisions to the server. Both functionalities are based on the QR codes [1] holding all the information needed.
Keywords: internet thinks, indoor navigation, systems, QR codes
Published in DiRROS: 02.07.2024; Views: 380; Downloads: 220
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1803. The powerful class of groupsPrimož Moravec, 2024, original scientific article Abstract: Pro-$p$ groups of finite powerful class are studied. We prove that these are $p$-adic analytic, and further describe their structure when their powerful class is small. It is also shown that there are only finitely many finite $p$-groups of fixed coclass and powerful class.
Keywords: finite p-groups, powerful class, pro-p groups
Published in DiRROS: 02.07.2024; Views: 339; Downloads: 164
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1806. Optimization of starch–tannin adhesives for solid wood gluingAnnalisa Magnabosco, Illya Kulyk, Maurizio Avancini, Primož Šket, Jonas Eckardt, Emanuele Cesprini, Francesco Marinello, Gianluca Tondi, 2024, original scientific article Published in DiRROS: 01.07.2024; Views: 431; Downloads: 262
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1808. Popis sekalnikov 2024Matjaž Dovečar, Amina Gačo Jež, Martin Jež, Nike Krajnc, Vesna Meden, Jaša Saražin, Darja Stare, Špela Ščap, Matevž Triplat, David Vodičar, 2024, other monographs and other completed works Keywords: sekalniki, gozdna mehanizacija, sekalni stroji, popisi
Published in DiRROS: 26.06.2024; Views: 497; Downloads: 192
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1810. Poročilo o preskusu št.: LVG 2024-057 : vzorec št. 2024/00240Barbara Piškur, Špela Hočevar, Zina Devetak, 2024, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, program preiskav, Fusarium circinatum, Pinus, borov smolasti rak, PCR
Published in DiRROS: 24.06.2024; Views: 391; Downloads: 0
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