نتایج جستجو برای: indoor environment

تعداد نتایج: 543514  

2012
Maja STELLA Mladen RUSSO Dinko BEGUŠIĆ

In this paper indoor localization system based on the RF power measurements of the Received Signal Strength (RSS) in WLAN environment is presented. Today, the most viable solution for localization is the RSS fingerprinting based approach, where in order to establish a relationship between RSS values and location, different machine learning approaches are used. The advantage of this approach bas...

2016
Siddhesh Doiphode J. W. Bakal Madhuri Gedam J. Krumm S. Harris B. Meyers B. Brumitt M. Hale S. Shafer T. Gigl G. J. M. Janssen V. Dizdarevic Hadis Kakanejadi Fard Yuanzhu Chen Kyung Kook Son H. Liu H. Darabi P. Banerjee

The continuous improvement in the development in the field of communication networks and mobile computing, location based service (LBS) has become very popular in recent years. For outdoor positioning service the Global Positioning Systems (GPS) are the earliest widely used modern systems. In GPS technology Satellite signals cannot penetrate in indoor environment since they are blocked by build...

2013

In some indoor condition where human are not suitable to get in (e.g. battlefield or house on fire), insect-size airrobot or ground vehicle are nimble and rapid tools to figure out the situation inside. The accurate localization and safe navigation in indoor environment plays a significant role when making use of these vehicles. But insect-size robot’s indoor localization is restricted by weigh...

2014
Tiffanie Ramos Brent Stephens

Recent studies have greatly increased our knowledge of microbial ecology of the indoor environments in which we live and work. However, the number of studies collecting robust, long-term data using standardized methods to characterize important building characteristics, indoor environmental conditions, or human occupancy e collectively referred to as “built environment data” e remain limited. I...

Journal: :JCM 2016
Zhitao Zhang Ye Yin Haoqian Wei Wei Tang

—Traditional indoor localization method based on the received signal strength (RSSI) has many drawbacks, such as the low localization accuracy, the high hardware requirements, and the complex algorithm. It is essential to create a robust system that can be suitable for varying indoor environment. In order to solve this problem, an automatic calibration indoor target signal positioning system i...

2013
Rong Chen Wen-Pei Sung Hung-Chang Chang Yi-Rou Chi

A human life demand set to emerge in the future is the achievement of sustainability by maintaining a comfortable indoor environment without excessive reliance on energy-consuming air conditioners. The major research processes in this study are: (1) measuring indoor air quality and thermal comfort to evaluate the comfort of an indoor environment; (2) implementing questionnaire survey analysis t...

Batool Sadeghinejad Gholamreza Goudarzi, Mahsa Moradi, Mojgan Alighardashi Seyed Mahmoud Latifi Zahra Soleimani,

The majority of diseases caused by air pollution, such as asthma and allergies, are caused by pathogenic bacteria, which are transmitted through bioaerosols. Bacteria and fungi are the main sources of hospital infections causing the majority of diseases and cases of mortality. The aim of this study was to determine the ratio of indoor to outdoor fungi concentration, the effect of population den...

2008
Ivana Holcatova

INTRODUCTION Except skin, the respiratory tract is the only human organ directly affected by (indoor) air. Therefore it is understandable, that all pollutants from the air can evoke any trouble especially in susceptible people. Microbiological contamination of any environment is common and also indoor air or environment is rich in different microbes and it doesn’t make too big difference if pat...

2009
Anuj Kumar

Indoor environment air pollution measurement has become a necessity because of global warming and climate change. All across the globe researchers are trying to monitor the pollutant gases precisely in real time. Sensing system using sensor arrays has been developed to monitor indoor environment, however, these systems are costly and have not gained wide acceptance. Precise measurement of indoo...

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