Results 21 to 30 of about 361,033 (290)

Autonomous Multi-Rotor Aerial Platform for Air Pollution Monitoring

open access: yesSensors, 2022
During the last few years, scientists have become increasingly concerned about air quality. Particularly in large cities and industrialised areas, air quality is affected by pollution from natural and anthropogenic sources and this has a significant ...
Alexandru Cozma   +3 more
doaj   +1 more source

Sampling and Reconstruction of Spatial Fields using Mobile Sensors [PDF]

open access: yes, 2012
Spatial sampling is traditionally studied in a static setting where static sensors scattered around space take measurements of the spatial field at their locations.
Unnikrishnan, Jayakrishnan   +1 more
core   +2 more sources

Mobile Robot Range Sensing through Visual Looming [PDF]

open access: yes, 1998
This article describes and evaluates visual looming as a monocular range sensing method for mobile robots. The looming algorithm is based on the relationship between the displacement of a camera relative to an object, and the resulting change in the size
Gaudiano, Paolo, Sahin, Erol
core   +4 more sources

Efficient Opportunistic Sensing using Mobile Collaborative Platform MOSDEN [PDF]

open access: yes, 2013
Mobile devices are rapidly becoming the primary computing device in people's lives. Application delivery platforms like Google Play, Apple App Store have transformed mobile phones into intelligent computing devices by the means of applications that can ...
Georgakopoulos, Dimitrios   +3 more
core   +3 more sources

Cognitive node selection and assignment algorithms for weighted cooperative sensing in radar systems [PDF]

open access: yes, 2009
For the radar spectrum to be shared efficiently a good sensing capability within a secondary cognitive communication system is required. In this paper, the swept radar's rotation mechanism is explored to improve the sensing performance.
Doufexi, A   +3 more
core   +2 more sources

Mobile Sensing Methods

open access: yes, 2023
Mobile and wearable devices are equipped with an array of embedded digital sensors that produce continuous steams of digital trace data. These now effectively ubiquitous digital trace data can empower psychologists to study human behavior “in vivo” and “in situ,” which has been an important goal following the American Psychology Association’s “Decade ...
Ramona Schoedel, Matthias R. Mehl
openaire   +1 more source

Realising context-sensitive mobile messaging [PDF]

open access: yes, 2007
Mobile technologies aim to assist people as they move from place to place going about their daily work and social routines. Established and very popular mobile technologies include short-text messages and multimedia messages with newer growing ...
D. Siewiorek   +8 more
core   +2 more sources

Differential Private Data Collection and Analysis Based on Randomized Multiple Dummies for Untrusted Mobile Crowdsensing [PDF]

open access: yes, 2017
Mobile crowdsensing, which collects environmental information from mobile phone users, is growing in popularity. These data can be used by companies for marketing surveys or decision making.
Akihiko Ohsuga, Yuichi Sei
core   +2 more sources

Investigating the Influences of Tree Coverage and Road Density on Property Crime

open access: yesISPRS International Journal of Geo-Information, 2018
With the development of Geographic Information Systems (GIS), crime mapping has become an effective approach for investigating the spatial pattern of crime in a defined area.
Chengming Ye, Yifei Chen, Jonathan Li
doaj   +1 more source

Opportunistic Transmission Mechanism Based on QoS Sensing and Cooperative Competition in Mobile Crowd Sensing Network [PDF]

open access: yesJisuanji gongcheng, 2016
To improve the efficiency of data sensing,collection and transmission in mobile crowd sensing network,this paper presents an opportunistic transmission mechanism based on QoS sensing and cooperative competition.In the mechanism,a mobile crowd sensing ...
YUAN Guixia,ZHOU Xianchun
doaj   +1 more source

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