scholarly journals A Decentralized Semantic Reasoning Approach for the Detection and Representation of Continuous Spatial Dynamic Phenomena in Wireless Sensor Networks

2021 ◽  
Vol 10 (3) ◽  
pp. 182
Author(s):  
Roger Cesarié Ntankouo Njila ◽  
Mir Abolfazl Mostafavi ◽  
Jean Brodeur

In this paper, we propose a decentralized semantic reasoning approach for modeling vague spatial objects from sensor network data describing vague shape phenomena, such as forest fire, air pollution, traffic noise, etc. This is a challenging problem as it necessitates appropriate aggregation of sensor data and their update with respect to the evolution of the state of the phenomena to be represented. Sensor data are generally poorly provided in terms of semantic information. Hence, the proposed approach starts with building a knowledge base integrating sensor and domain ontologies and then uses fuzzy rules to extract three-valued spatial qualitative information expressing the relative position of each sensor with respect to the monitored phenomenon’s extent. The observed phenomena are modeled using a fuzzy-crisp type spatial object made of a kernel and a conjecture part, which is a more realistic spatial representation for such vague shape environmental phenomena. The second step of our approach uses decentralized computing techniques to infer boundary detection and vertices for the kernel and conjecture parts of spatial objects using fuzzy IF-THEN rules. Finally, we present a case study for urban noise pollution monitoring by a sensor network, which is implemented in Netlogo to illustrate the validity of the proposed approach.

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Jelena Božić ◽  
Predrag Ilić ◽  
Ljiljana Stojanović Bjelić

Noise pollution is one of the main environmental problems today.The main source of environmental noise is traffic noise, especially the noise of road vehicles. The continuing expansion of motorized transport in Europe and Republic of Srpska today, and especially the sharp increase in the use of private cars raises concerns about the health risks.The aim of the case study was to determine the noise level at the location „Borik“ in Banja Luka. The measured values indicate that the noise level in this street is alarming. This paper discusses health and well-being related impacts of traffic noise pollution as well as the economic and social benefits associated with its reduction. It summarizes the latest scientific evidence on the impact of road traffic-induced noise on physical and mental health as a reaction to the high level of traffic noise risks. According to the scientific evidence, road traffic is the main source of noise pollution in Europe that cause harmful health such as impaired communication and disturbed sleep, as well as adverse after effects such as fatigue and decreased performance, annoyance, hearing impairment, ischemic heart disease and hypertension. The effects of unhealthy noise level are reflected on living and working conditions, consequently affecting the economy.This paper highlights economic implications and health benefits linked to cross-functionalities in the process of noise reduction in urbanism, architecture and vehicle design and methods for its evaluation. Cost-benefit analysis would be a pivotal decision-making tool for the city road traffic and land-use decisions. Economic valuation is about identifying all preferences and translating them into a money measure, to create a common denominator for comparing the pros and cons. Any decision implicitly include a money value into health effects. A holistic approach is crucial, considering the various health and economic consequences together.


2015 ◽  
Vol 1 (1) ◽  
pp. 289-296
Author(s):  
Valentin Petrescu ◽  
Rodica Ciudin ◽  
Claudiu Isarie ◽  
Lucian Ionel Cioca ◽  
Victor Nederita

AbstractNoise reduction for urban areas, especially noise generated by traffic is one of the major problems in today’s European cities. This paper is focused on more aspects that are addressing to traffic noise, like pavement, driver’s behavior, frequency of stops, pick hours, traffic agglomerations, etc. Research leading to this paper was conducted within the project “Adaptation to the Climate Change” developed in partnership with Environmental protection Agency Sibiu, focusing for this case study on traffic related pollution in a historical city center of Sibiu. Were considered three types of pavements (cobblestones, streets covered with dense asphalt, and graded asphalt road surfaces), three types of vehicles (small passenger car, family car and SUV), and testing’s were done using 3M Quest SoundPro Sonometer. Higher noise levels were registered for cobblestone and dense asphalt surfaces. Acoustic measurements and maps emphasizing studied are presented, and the identified parameters considered to be related to the traffic noise are given.


2014 ◽  
Vol 933 ◽  
pp. 1008-1013 ◽  
Author(s):  
Yong Xing Tong ◽  
Yong Qing Jiang ◽  
Zhen Zhou ◽  
De Zhong Ma

With the continuous development of social economy and urbanization in our country, noise pollution has become the fourth largest environment pollution in our country but water pollution, air pollution, solid waste pollution, which is the widest influence of traffic noise. In recent years, with the development of automobile industry and urban transportation, road traffic noise pollution in Harbin phenomenon is increasingly prominent, which seriously affected the People's daily life. Through detailed survey we found that the research on road traffic noise pollution situation in Harbin is very less, and part of the evaluation is not accurate. In this paper, firstly the characteristics of road traffic noise and noise evaluation index selection is discussed in detail. The xuefu road sections in Harbin city traffic noise and traffic noise pollution monitoring research in detail strict accordance with national standards. According to monitoring data of xuefu road traffic noise pollution source in time and space distribution analysis, the roughly the time distribution and spatial distribution of xuefu road traffic flow. By the overall analyzed monitoring data characteristic, the xuefu road traffic noise pollution is serious. According the previous analysis and research, the researchers find out the main factors influencing the xuefu road traffic condition, and we puts forward some countermeasures for the noise reduction. Through the study of this paper, that is to Harbin city xuefu road for the future of the road traffic noise monitoring and management work provide favorable basis, and it has good practical application value. It aimed at Harbin city road traffic noise control, urban planning and construction, provide theoretical basis for government decisions.


2017 ◽  
Vol 21 ◽  
pp. 551-556 ◽  
Author(s):  
Ilinca Mirela Beca ◽  
Mihai Iliescu

The transportation policies focusing on minimizing the environmental impact aim at an improved quality of life and health of the population, the urban one in particular. Noise pollution is one of the biggest problems associated with the European urban environment at the present moment, mainly because of the ever-increasing road traffic. SUNET system (System for Urban Noise and Eco-Traffic) was designed to improve the management of the noise pollution in Cluj-Napoca and to provide up-to-date public data on a user-friendly interface. The implementation of the application over the entire municipality is highly advantageous as it creates a link between the town’s administration (the local authorities, the City Hall of Cluj-Napoca) and the user (the citizens) through this system which is dynamic, modern and compliant with the European regulations. The graphic interface uses the HTML (HyperText Markup Language) code, while the database is set up in an SQL (Structured Query Language) format and contains information about the characteristics of the system and users alike, all organized in specific tables. The need for an online urban noise pollution monitoring system, such as the SUNET one, appears to allow the provision of fairly realistic and up-to-date information and encourage the community to actively assist in the application of proper action plans and the decision-making process when it comes to the population’s exposure to high levels of noise pollution.


Author(s):  
Mohammad Monazzam ◽  
Elham Karimi ◽  
Majid Abbaspour ◽  
Parvin Nassiri ◽  
Lobat Taghavi

2019 ◽  
Vol 105 (6) ◽  
pp. 1015-1025
Author(s):  
José Luis Cueto ◽  
David Bienvenido-Huertas ◽  
Francisco Fernández-Zacarías ◽  
Ricardo Gey ◽  
Ricardo Hernández-Molina

This article presents a methodological approach to try to respond to some of the protection and management needs against the noise of a peri-urban natural park. The methodology presented is based on the generation of "ad hoc" noise maps. To analyze its possibilities and the limits of use, a coastal park surrounded by a densely populated area in the southwest of Spain is used as a case study. In this study, birds in their diverse ecosystems are the main target noise receiver of the study. The source of noise pollution considered is the traffic noise of the highways and the urbanized areas surrounding the park. However, the methodology can be extrapolated to any source of noise and other protection figures. An adequate diagnosis of the environmental noise would help to overcome the supposed incompatibility between the preservation of nature and the tourist exploitation of natural spaces. With this in mind, it has also been proposed as target noise receivers, the ornithologists and visitors who wish to become bird-watchers and bird-listeners. To this end, it has been proposed to produce noise maps with certain methodological guidelines that fit on a case-by-case basis. Several heights are used in this paper, adapting the map to noise receivers. With the same purpose, noise level maps in octave bands were developed. The tonal frequencies of interest are those that the birds use in their songs (according to the species, normally between 2 and 8 kHz). The maps have been contrasted with noise measurements carried out throughout the park. The study shows that in the areas most exposed to the noise of the Rio San Pedro and the university campus, noise levels at 2 kHz can reach 74 dB during the peak traffic hours. In addition, a large percentage of the area of both areas is affected by noise levels that exceed 50 dB (100% and 44% respectively). We are also concerned that a small population of birds has been counted in these areas based on preliminary observations at peak traffic times. The results can help the decision-makers to evaluate how traffic noise invades different ecosystems and where it can mask the sound of birds.


2021 ◽  
Author(s):  
Mohammad Gheibi ◽  
Mohsen Karrabi ◽  
Pooria Latifi ◽  
Amir Mohammad Fathollahi-Fard

Abstract The environmental consequences and the epidemiologic results of noise pollution have chronic effects and lead to widespread complications in the long run. Thus it might receive less attention by pollution monitoring and control systems when compared with other environmental pollutants. The city of Mashhad is Iran’s second largest metropolitan city and it is one of the biggest world religious cities in the world. Each year it becomes one of the main destinations for travel for tourists and pilgrims in Iran and abroad in the holidays of the beginning of the year and the summer. In this research study the distribution of sound pollutants in the streets and sidewalks leading to the Holy shrine of Imam Reza is investigated. Field measurements were carried out by noise level meters and on longitudinal and transverse points of the sidewalk of the streets leading to the Holy Shrine. All of the measurements and recordings were done during the peak of morning crowd (AM 10-12) and evening crowd (PM 4-6) and on both of the sidewalks of each street. The study showed that the pollution in all of the studied streets in the evening time span (PM 4-6) has the maximum level of noise. Among all of the studied streets, Tabarsi street has the most amount of noise pollution with a mean of 78 dB(A) for the mean intensity for each point and Imam Reza street has the minimum amount of pollution with a mean of 72.75 dB(A). The investigations showed that, from the temporal perspective, the noise pollution peaks in the evening, when weather conditions are most favorable for visiting the area. From the spatial perspective, the most intensive noise pollution was observed in the areas with residential and accommodation land use, which have the highest number of arterial routes towards the shrine.


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