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Wyszukujesz frazę "personal location" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Comparison of Indoor/Outdoor, RSSI-Based Positioning Using 433, 868 or 2400 MHz ISM Bands
Autorzy:
Chruszczyk, Ł.
Zając, A.
Powiązania:
https://bibliotekanauki.pl/articles/227034.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
indoor location
personal location
RSSI measurement
ISM band
Opis:
This paper compares accuracy of indoor positioning systems using one of three selected ISM bands: 433, 868 or 2400 MHz. Positioning is based on Received Signal Strength Indication (RSSI), received by majority of ISM RF modules, including lowcost ones. Investigated environment is single, indoor space (e.g. office, hall) and personal use, thus 2-dimensional (2D) coordinate system is used. Obtained results, i.a. average positioning error, are compared with similar measurements taken at outdoor, open space environment. The system is local, i.e. its operational area is limited by range of used RF modules – typical a few tens of meters. The main focus is research of how much accuracy (and usefulness) can be expected from standard RF modules working at typical ISM frequencies.
Źródło:
International Journal of Electronics and Telecommunications; 2016, 62, 4; 395-399
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of 2.4 and 5 GHz WLAN Network for Purpose of Indoor and Outdoor Location
Autorzy:
Chruszczyk, Ł.
Zając, A.
Grzechca, D.
Powiązania:
https://bibliotekanauki.pl/articles/226336.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
indoor location
personal location
wireless LAN
RSSI measurement
Opis:
This paper presents comparison of prototype location system built with standard components of 2.4 and 5 GHz WLAN network infrastructure. The system can be used for personal or other objects’ positioning, both for indoor and outdoor environments. The system is local, i.e. its operational area is limited to WLAN network operating range. The system is based on standard and widely available WLAN components (access points, network adapters). The goal is to avoid any hardware and software modifications. Also position calculation should not be power hungry operation. Method of location is based in Received Signal Strength Indication (RSSI) returned by most of RF ICs (including WLAN). The main focus is research of how much accuracy (and usefulness) can be expected from standard WLAN hardware. Both static and dynamic scenarios have been tested and compared.
Źródło:
International Journal of Electronics and Telecommunications; 2016, 62, 1; 71-79
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Personal communication services in wireless networks
Autorzy:
Michalski, W.
Powiązania:
https://bibliotekanauki.pl/articles/309467.pdf
Data publikacji:
2005
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
personal services
information services
voice services
data transmission services
services of flexible scenarios
number portability
universal personal telecommunications
universal access number
messaging
location-based information
transferring text information services
unified communications
e-commerce
e-shopping
telebanking
micropayments
Opis:
The paper presents modern personal services and new trends observed in evolution of wireless services. The article covers voice and data transmission services offered in mobile networks as well as information services delivered to users over Internet/IP networks. With reference to voice services, selected GSM services based on IN services platform, e.g., the services of flexible scenarios are described. Moreover, the status of VoIP service provided over WLAN is explained. Concerning data transmission services, selected UMTS services are presented as well. Among information services, presentation of wide scope of services offered to mobile users, e.g., messaging, location-based information, transferring text information, unified communications as well as Internet services, e.g., e-commerce, e-shopping, telebanking and micropayments is done. For both, voice and data transmission services, personal services are presented exclusively. Generally, the most attractive services with personal features are selected and described in this paper.
Źródło:
Journal of Telecommunications and Information Technology; 2005, 4; 147-153
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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