Wyniki wyszukiwania - BazTech

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An indoor campus navigation system for users with disabilities

Pilski Marek, Mikułowski Dariusz, Terlikowski Grzegorz

Studia Informatica : systems and information technology

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2023

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Vol. 2(29)

81--93

EN

While supporting navigation outside buildings is currentlywell solved through GPS-based systems, only a few solutions support indoor navigation and user positioning in large buildings. In this paper, we propose a solution to support such navigation by creating a dedicated hierarchical map of the building and associating it with the infrastructure of Bluetooth Low Energy (BLE) transmitters installed in the building. Then a user equipped with a smartphone can easily read the signals of these transmitters and, thanks to the map, can determine their position in space.We use our method in a system that supports navigation and user safety, emphasizing users with special needs, which we are implementing on our academic campus. We describe the idea, architecture, and implementation of this system.

2

Optimizing the placement of BLE transmitters for Indoor Positioning Systems

Pilski Marek, Aleksandrowicz Mateusz

Studia Informatica : systems and information technology

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2022

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Vol. 2(27)

95--107

EN

The article presents the results of experimental research related to the optimization of the placement of BLE transmitters (beacons) inside rooms in order to locate the user. The experiments were carried out to check how far BLE transmitters can be moved away from each other so that the average localization error was at a level acceptable to the user. The value of the localization error was assumed based on the literature (less than 1 m). As a result of the conducted experiments, a mathematical formula was defined to calculate the required number of BLE transmitters for the exact location inside the rooms. The experiments used BLE transmitters, rooms inside the building of Siedlce University of Natural Sciences and Humanities and a mobile application with a database. In the study of the optimization of the placement of beacons, the fingerprint technique was used.

3

Methods to acquisition digital evidence for computer forensics

Pilski Marek

Studia Informatica : systems and information technology

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2022

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Vol. 1(26)

73--84

EN

Computer forensics is a key science and competency in meeting the growing risks of cybercrime, as well as for criminal investigation generally. In order to provide irrefutable evidence of a potential crime, a specialist in the incident response team (e.g. an IT forensics specialist) must secure the digital evidence in accordance with the correct procedure. There are no strict guidelines on how to do this. It is known that the authenticity and fidelity of data must be preserved. This article will collect good practices developed by specialists in the field of computer forensics. The process of securing the evidence material from a digital data sources for later analysis will be presented.

4

Technologies supporting independent moving inside buildings for people with visual impairment

Pilski Marek

Studia Informatica : systems and information technology

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2020

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Vol. 1-2(24)

85--97

EN

Sustainable Development Goals (SDGs) include disability and persons with disabilities for example partially sighted or blind. Disability is referenced in multiple parts of the SDGs, specifically in the parts related to education, growth and employment, inequality, accessibility of human settlements and buildings. The paper presents selected technologies that support independent movement blind people inside huge buildings. The paper will refer to two SDGs: No 9 and No 11. There needs to be a future in which cities provide opportunities for all with access to basic services, housing, friendly public buildings, transportation and more, even to people with eye disabilities. This paper presents selected systems for finding objects or places, recognizing objects inside rooms and navigation inside buildings based on nonradio and wireless technologies. The following technologies and solutions were presented and compared: physical items, smartphone cameras, laser rangefinders, pedestrian dead-reckoning, intelligent lighting, Wi-Fi, BLE beacons, magnetic fields and barometric pressure sensors.