Article | 28-August-2018
The indoor environment determines the occupants’ comfort and significantly affects the energy consumed for heating and ventilating the building premises. Therefore, the proper complex thermal diagnostics of existing buildings requires a fair assessment of indoor environment conditions. The method for measuring and assessing the quality of the thermal environment and the quality of the indoor air is demonstrated through the example of two single-family houses and one apartment in a multi-family
Jan KACZMARCZYK,
Aleksandra LIPCZYŃSKA,
Przemysław KATEUSZ
Architecture, Civil Engineering, Environment, Volume 10 , ISSUE 4, 163–171
Article | 01-September-2014
Node localization is one of the key technologies of wireless sensor networks (WSN). Due to the indoor environment requires a high positioning accuracy, an improved algorithm based on RSSI is put forward. In terms of RSSI ranging, the error correction coefficient received from self-correcting locator beacon nodes, and then had been applied to distance solving from unknown nodes to the beacon nodes. In the choice of weights, the algorithm uses inverse distance and replaces the method of
En-jie Ding,
Xin Qiao,
Fei Chang
International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 3, 1156–1173
Article | 28-August-2018
University of Technology in Gliwice was a leader of the scientific-industrial consortium implementing the task. The main objectives of Task 4 and achieved relevant results are presented in the paper. A new method for the rapid on-site thermal diagnosis of a building envelope and systems of heating, ventilation, air conditioning and domestic hot water preparation and the diagnosis of indoor environment quality, as well as a method for drawing up energy performance certificates based on the measurements
Zbigniew POPIOLEK,
Przemysław KATEUSZ
Architecture, Civil Engineering, Environment, Volume 10 , ISSUE 2, 125–132
Article | 26-August-2018
independent scientific institutions, assuring their accordance with exigencies of rating systems. The paper analyzes the formal methods of proper space planning, which assure high indoor environment quality parameters for the end users of office interiors in terms of optimum daylighyting of workstations and recreational areas as well as workers’ visual contact with natural valuable surroundings. These requirements can be satisfactorily met by properly shaped inner space elements including partitions
Magdalena CELADYN
Architecture, Civil Engineering, Environment, Volume 9 , ISSUE 4, 5–12
Article | 01-December-2016
In order to reliable data transmission of wireless sensor network (WSN) in indoor environment, the indoor field intensity distribution and transmission characteristics of electromagnetic wave were researched. First of all, the 3D model in specific indoor environment was built by the finite difference time domain method (FDTD).Then, layout of room, different furniture, position of field source and field source frequency had an influence on indoor field intensity distribution that were studied
Song Yongxian,
Zhang xianjin
International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 4, 1943–1970
research-article | 30-November-2019
meteorological factors on optical properties of aerosol particles does not, therefore, need to be taken into account. However, the optical properties of fine particles indoors also vary depending on the characteristics of the indoor environment because of different possible emission sources, such as small, non-effective stoves, resuspension from carpets and cigarette smoking etc. [21, 22], as well as varying levels of airborne particles penetrating indoor air from outdoors [23].
The aim of this work was to
Jozef S. PASTUSZKA
Architecture, Civil Engineering, Environment, Volume 13 , ISSUE 4, 105–113
research-article | 30-November-2017
1.
INTRODUCTION
Thermal environment in buildings is one of the most important aspects for occupants’ comfort [1]. Thermal comfort, i.e. satisfaction with the environment depends on the occupants’ thermal sensation. The thermal sensation is a function of four physical variables of indoor environment in the room (air temperature, mean radiant temperature, relative air humidity and air velocity) and two variables related to people (activity level and clothing). Knowledge of these parameters allow
Jan KACZMARCZYK,
Joanna FERDYN-GRYGIEREK,
Andrzej BARANOWSKI
Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 2, 107–114
Research Article | 08-February-2019
Dorota BARTOSZ
Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 4, 137–150
Research Article | 08-February-2019
Abstract
The aim of the paper was to verify whether it is possible to predict thermal indoor environment in an industrial facility, characterized by large cubature and significant heat sources using a computational fluid dynamics (CFD) technique. For this purpose, thermal imaging measurements were carried out to obtain boundary conditions, followed by numerical simulations of the airflow using the Ansys CFX software. Direct results of temperature and velocity distribution of air were analyzed
Agnieszka PALMOWSKA,
Gabriel MICZKA
Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 4, 169–178
Research Article | 13-December-2017
Anuj Kumar,
I. P. Singh,
S. K. Sud
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 4, 621–642
Research Article | 15-February-2020
Doppler effect. Results show the maximum sensing range of virtual fence unit is decreasing as azimuth angle increasing. With high sensitivity level of virtual fence unit, the maximum sensing range of virtual fence unit is larger than the maximum sensing range of virtual fence unit at normal sensitivity level. Results also show the virtual fence unit has higher maximum sensing range in indoor environment than outdoor environment.
H.T Chan,
T.A Rahman,
A. Arsad
International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–4
Article | 01-December-2012
utilized for efficient joint estimation and laser sensing based smooth observation model is also introduced. The resulting algorithm works in real-time and estimates the position of people and state of doors with sufficient precision. Our approach has been tested in typical indoor environment with people, doors and other non-static objects. Experimental results demonstrate the favorable performance of the position estimation accuracy as well as the capability to deal with the uncertainty of mobile
Kun Qian,
Xudong Ma,
Xian Zhong Dai,
Fang Fang,
Bo Zhou
International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 4, 1081–1096
Article | 01-December-2015
Voice Activity Detection (VAD) is a crucial step for speech processing, which detecting accuracy and speed directly affects the effect of subsequent processing. Some voice processing system based phone or in the indoor environment, which need simple and quick method of VAD, for these representative voice signal, this paper proposes a new algorithm which is adaptive and quick based on a major improvement to Dual-Threshold endpoint detection algorithm. First the amplitude normalization is
Zhang Zhigang,
Huang Junqin
International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 4, 2175–2194