Tracking the movement of people in indoor environments is useful for a variety of applications including elderly care, study of shopper behavior in shopping centers, security etc. There have been several previous efforts at solving this problem but with limited success. Our approach uses inexpensive pressure sensors, placed in a specific manner, that allows us to identify multiple people. Given...

The present study aimed to investigate the applicability of Universal Thermal Climate Index (UTCI) as an innovative and science-based index in public health researches, in occupational heat stress assessment. All indoor and outdoor workers (200 people) of Brick industries of Shahroud, Iran participated in the research. First, the environmental variables such as air temperature, wet-bulb tempera...

Many ailments can be linked to exposure to indoor airborne fungus. However, obtaining a precise measurement of airborne fungal levels is complicated partly due to indoor air fluctuations and non-standardized techniques. Electrostatic dust collector (EDC) sampling devices have been used to measure a wide range of airborne analytes, including endotoxins, allergens, β-glucans, and microbial DNA in...

one of the most effective techniques to mitigate multipath fading and inter-cell interference at a downlink wireless channel in wcdma systems for achieving high capacity is transmitter power control. in this case, system increases the power of the subscriber when its interference increases in order to satisfy the requested signal qualities. however, when the requested signal qualities are infea...

Moving GNSS towards indoor positioning is an important challenge. Increases in receiver sensitivity, the forthcoming increase in number of GNSS satellites and signal design improvements all contribute to addressing this challenge. Another remaining issue for GNSS-based indoor positioning is the impact of signal multipath phenomena in indoor environments. We designed an measurement campaign with...

In this demonstration, we introduce a system that is able to manage moving objects in all real world environments, e.g., road network, bus network and indoor. The complete trip of a person is managed by the system such as Walk, Car, Walk, and Indoor, where the precise locations of both outdoor and indoor movements are represented. Trajectories located in several environments are integrated into...

We propose an approach to model indoor environments from depth videos (the camera is stationary when recording the videos), which includes extracting the 3-D spatial layout of the rooms and modeling objects as 3-D cuboids. Different from previous work which purely relies on image appearance, we argue that indoor environment modeling should be human-centric: not only because humans are an import...

HINTIKKA, E.L. and NIKULIN, M. 1998. Airborne mycotoxins in agricultural and indoor environments. Indoor Air – International Journal of Indoor Air Quality and Climate Supp. 4: 66–70. This overview with 33 references discusses the increasing reports of inhalation exposure to mycotoxins in agricultural environments and in water damaged buildings with mould problems. There is evidence that inhalat...

This paper surveys indoor spatial models developed for research fields ranging from mobile robot mapping, to indoor location-based services (LBS), and most recently to context-aware navigation services applied to indoor environments. Over the past few years, several studies have evaluated the potential of spatial models for robot navigation and ubiquitous computing. In this paper we take a slig...

Indoor positioning could provide interesting services and applications. As one of the most popular indoor positioning methods, location fingerprinting determines the location of mobile users by matching the received signal strength (RSS) which is location dependent. However, fingerprinting-based indoor positioning requires calibration and updating of the fingerprints which is labor-intensive an...