Results 51 to 60 of about 20,011,304 (290)
Sensors, 2021 Reduced deployment and calibration requirements are key for scalable and cost-effective indoor positioning systems. In this work, we propose a low-complexity, weak calibration procedure for an indoor positioning system based on infrastructure lighting ...
Álvaro De-La-Llana-Calvo +6 more
doaj +1 more source
Kirigami‐Inspired Stretchable Silicon Solar Cell Modules as Portable Power Sources
Advanced Materials, EarlyView.Kirigami‐inspired structured substrates are designed to craft stretchable silicon solar cell modules, showcasing remarkable stability upon deformation and retaining high output efficiency. This innovative approach holds great promise for the utilization of silicon modules for wearable devices.
Yusheng Zhang +13 more
wiley +1 more source
Fusion of Visible Light Indoor Positioning and Inertial Navigation Based on Particle Filter
IEEE Photonics Journal, 2017 With the increasing demand for indoor positioning-based services, indoor positioning methods based on Bluetooth, Wi-Fi, ultra wide band (UWB), inertial navigation, and visual light communications (VLC) have been proposed.
Zhitian Li +4 more
doaj +1 more source
Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication
Advanced Materials Technologies, EarlyView.The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting +5 more
wiley +1 more source
Advances in Mechanical Engineering, 2015 The automation level has been improved rapidly with the introduction of large-scale measurement technologies, such as indoor global positioning system, into the production process among the fields of car, ship, and aerospace due to their excellent ...
Gang Zhao +5 more
doaj +1 more source
A Review of Antennas for Indoor Positioning Systems
International Journal of Antennas and Propagation, 2012 This paper provides a review of antennas applied for indoor positioning or localization systems. The desired requirements of those antennas when integrated in anchor nodes (reference nodes) are discussed, according to different localization techniques and their performance. The described antennas will be subdivided into the following sections according
Brás, Luís +4 more
openaire +3 more sources
Advanced Materials Technologies, EarlyView.Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil +4 more
wiley +1 more source
Fine-grained indoor positioning and tracking systems [PDF]
, 2016 Indoor positioning has attracted considerable attention for decades due to the increasing demands for location based services. In the past years, although numerous methods have been proposed for indoor positioning, it is still challenging to find a ...
Li, Zan
core +2 more sources
A Pervasive Indoor-Outdoor Positioning System
Journal of Networks, 2008 A new concept called Always Best Located (ABL) is introduced to achieve a pervasive indoor- outdoor positioning system. Designed as a combination of WLAN and GPS, this hybrid positioning system is shown to yield ubiquitous coverage and best-effort accuracy in any environment.
Lionel Reyero, Gilles Y. Delisle
openaire +2 more sources