scholarly journals Dynamic Signal Strength Mapping and Analysis by Means of Mobile Geographic Information System

2017 ◽  
Vol 24 (4) ◽  
pp. 595-606 ◽  
Author(s):  
Marcin Kulawiak ◽  
Witold Wycinka
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Signal Strength ◽  
Geographic Information ◽  
Indoor Navigation ◽  
Mapping Algorithms ◽  
Target Environment ◽  
Online Storage ◽  
Beacon Signal

AbstractBluetooth beacons are becoming increasingly popular for various applications such as marketing or indoor navigation. However, designing a proper beacon installation requires knowledge of the possible sources of interference in the target environment. While theoretically beacon signal strength should decay linearly with log distance, on-site measurements usually reveal that noise from objects such as Wi-Fi networks operating in the vicinity significantly alters the expected signal range. The paper presents a novel mobile Geographic Information System for measurement, mapping and local as well as online storage of Bluetooth beacon signal strength in semireal time. For the purpose of on-site geovisual analysis of the signal, the application integrates a dedicated interpolation algorithm optimized for low-power devices. The paper discusses the performance and quality of the mapping algorithms in several different test environments.

scholarly journals The choice of optimal sites for controlled landfill using the Analytical Hierarchy Process and the Geographic Information System: A case of Oum Azza in Morocco

2021 ◽  
Vol 234 ◽  
pp. 00066
Author(s):  
Ahmed Ait Errouhi ◽  
Jihane Gharib ◽  
Yassir Bouroumine ◽  
Anas Bahi
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Waste Management ◽  
Geographic Information ◽  
Waste Hierarchy ◽  
Institutional Economic ◽  
System A ◽  
Exponential Increase ◽  
Hierarchy Process

Depending on the technical, institutional, economic and social limits of developing countries, as well as the population density in cities, nowadays, the volume of urban waste has increased considerably, and the management of this waste contributes to climate change, and air pollution, it directly affects many ecosystems and many species. Waste management faces serious problems such as irregular collection, informal sweeping activities, uncontrolled dumping and proliferation of illegal dumping. The latter constitute a real and permanent threat to the quality of life, this exponential increase in the urban population and the resulting accelerated phenomenon of urbanization have highlighted the need to develop sustainable and efficient waste management systems. Stakeholders are therefore required to consider alternative and available means of disposal, in particular by minimizing the damage caused to the ecosystem and to the human population, among these means of disposal, controlled landfills, considered as the last option in the waste hierarchy. In this study, attempts were made to locate a new landfill in Oum Azza using the AHP multi-criteria decision-making method to assess the different criteria considered during the prospecting and combining them with the geographic information system to acquire the results in the form of maps displayed on the optimal sites to house a new controlled landfill and minimize its terrible impact on the environment.

Improving road network databases by integrating a geographic information system and digital imagery

2008 ◽  
Vol 35 (2) ◽  
pp. 170-178 ◽  
Author(s):  
M. Abdalla ◽  
Said M. Easa
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Road Network ◽  
Geographic Information ◽  
Integrated System ◽  
High Data ◽  
Road Lighting ◽  
Safety Performance Functions ◽  
Collection Cost

Road lighting information is an important record in road network databases. It has been frequently observed that such data are either missing or not updated due to the high data collection cost using traditional methods. This paper presents a new methodology for identifying and (or) resolving missing and conflicting road lighting data in road network databases. The methodology is based on: (i) integrating the single-line road network (SLRN) in a geographic information system format with a road network database and (ii) integrating the SLRN with a collision database. Missing and conflicting lighting data are resolved using a semi-automatic method for extracting streetlight pole information. The integrated system can also identify inconsistencies related to short segments and segments with mixed illumination characteristics. Inconsistencies in the traffic volume database were also examined and the effect of data inconsistency on safety performance functions was evaluated. The proposed methodology represents an inexpensive, efficient tool for improving the quality of road network databases and associated road safety analysis.

Geographic Information System Technology: Review of the Challenges for Its Establishment as a Major Asset for Disaster and Emergency Management in Poland

2020 ◽  
pp. 1-6 ◽  
Author(s):  
Krzysztof Goniewicz ◽  
Maciej Magiera ◽  
Dorota Rucińska ◽  
Witold Pawłowski ◽  
Frederick M. Burkle ◽  
...  
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Geographic Information ◽  
Computer Hardware ◽  
Gis Technology ◽  
Interactive Analysis ◽  
Multiple Data ◽  
Information System Technology ◽  
The Impact

ABSTRACT Technical and technological progress in the 21st century, especially emerging geographic information system (GIS) technology, offers new and unprecedented opportunities to counteract the impact of crisis situations and emergencies. Computerization and development of GIS enabled the digital visualization of space for interactive analysis of multiple data in the form of models or simulations. Additionally, computerization, which gives rise to a new quality of database management, requires continuous modernization of computer hardware and software. This study examines selected examples of the implications and impact of the GIS commonly used in Poland.

scholarly journals Using Geographic Information System (GIS) to estimate the volume of water for Al Dammam unconfined Aquifer within Al Salman basin, Al- Muthana Governorate, South West Iraq

2019 ◽  
pp. 1478-1485
Author(s):  
Osamah N. Al-Sheikh ◽  
Ayser M. Al-Shamma’a
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Unconfined Aquifer ◽  
Geographic Information ◽  
Quality Of Water ◽  
Digital Elevation ◽  
Automate Calculation ◽  
West Iraq ◽  
Flow Map

The groundwater represents the main source of water in the study area due to lack of surface water. The Dammam unconfined aquifer represents the main aquifer in the study area and Southern desert because of the regional extent, the quantity and quality of water. Many groundwater wells have been drilled in the study area to coverage the huge demand of water for agricultural purposes. The Geographic Information System (GIS) was used to estimate the volume of water which calculated (25.6964 × 109 m3) within the study area , automate calculation of the area of Al Salman basin using digital elevation models, derive the thickness maps of AlDammam unconfined aquifer from Key holes (KH) and Bore holes (BH), draw the groundwater head and flow map in the study area. Such data derived from GIS can help authorities and researchers for groundwater management and further development within the study area.

scholarly journals Archaeоlogical Map of Bulgaria – Transport and Pipeline Infrastructure Projects

2019 ◽  
Author(s):  
Nadezhda Kecheva
Keyword(s):  
European Union ◽  
Information System ◽  
Geographic Information System ◽  
Scale Development ◽  
Large Scale ◽  
Geographic Information ◽  
The European Union ◽  
Price List ◽  
Archaeological Data

When the European Union began to finance transport and pipeline infrastructure constructions in Bulgaria, large-scale development-led archaeological projects emerged. After 2011, many 'polluter pays' projects were executed with the outlined workflow containing preliminary reports and fieldwork activities in accordance with Bulgarian legislation and a defined price list. As part of the process the national 'sites and monuments' archaeological information system 'Archaeological Map of Bulgaria' (AIS AKB) plays an important part as a source of archaeological data for the territory of Bulgaria. This centralised structure controls the quality of the archaeological fieldwork and data standardisation. The aim is to transform the 'sites and monuments' information system to an archaeological geographic information system (GIS) based on geospatial features, largely using an accumulation of standardised data.

scholarly journals ПРОГНОЗУВАННЯ ЯКОСТІ ВОДИ В РІЧКАХ ДУНАЙ ТА СІВЕРСЬКИЙ ДОНЕЦЬ ЗА ДОПОМОГОЮ ГЕОІНФОРМАЦІЙНИХ ТЕХНОЛОГІЙ

World Science ◽  
2019 ◽  
Vol 1 (11(51)) ◽  
pp. 45-49
Author(s):  
Васенко О. Г. ◽  
Брук В. В. ◽  
Карлюк А. А. ◽  
Свиридов Ю. В.
Keyword(s):  
Water Quality ◽  
Information System ◽  
Geographic Information System ◽  
Quality Indicators ◽  
Ammonia Nitrogen ◽  
Ammonium Nitrogen ◽  
Geographic Information ◽  
Danube River ◽  
Water Quality Indicators

For forecasting of the change of water quality in water object the geographic information system (GIS) of the ecological monitoring had been designed. The geographic information system was applied to analyze the water quality of the Danube and Seversky Donets. With the help of GIS, the main trends of changes in water quality indicators of the Danube Delta were identified. In the Danube River, for the most part, there was a tendency for improvement of water quality during the study period, the tendency for deterioration of water quality was determined only by the indicator of manganese. The tendency for deterioration of water quality was observed in the Siverskyi Donets River by the following indicators: suspended matter and ammonia nitrogen. The main trends of changes in water quality indicators have also been identified in the lakes (Chaika, Lychevoe), which influence the formation of water quality of the Siverskyi Donets River. In Lake Chaika there is a tendency to deteriorate in quality: weighed substances; nitrogen nitrate, chlorides and iron. In this case, the values of some indicators in Lake Chaika (BOD-5 and total iron), in Lake Lichovo (COD, BOD-5, nitrite nitrogen) and in the Siverskyi Donets River (overlying districts, ammonium nitrogen) will be several times higher fishery maximum permissible concentration.

scholarly journals DEVELOPMENT OF A UNIFIED LAYOUT OF THE MUNICIPAL GEOINFORMATION SYSTEM FOR RATIONAL USE OF LAND RESOURCES

2020 ◽  
pp. 79-86
Author(s):  
Олег Евгеньевич Лазарев ◽  
Павел Николаевич Головин ◽  
Оксана Сергеевна Лазарева
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Land Management ◽  
Geographic Information ◽  
Land Resources ◽  
Geoinformation System ◽  
Rational Use ◽  
Quality Of Control

В статье рассмотрен процесс создания унифицированного макета муниципальной геоинформационной системы в целях повышения рациональности использования земельных ресурсов, а также возможности её применения в сфере управления земельными ресурсами региона. Посредством использования функционала муниципальной геоинформационной системы, а также визуализации земельной информации, осуществления оценки распределения и разграничения земельных участков, становится возможным повышение качества контроля и надзора за состоянием и использованием земель. The article considers the process of creating a unified layout of the municipal geographic information system in order to improve the rational use of land resources, as well as the possibility of its application in the field of land management in the region. By using the functionality of the municipal geoinformation system, as well as visualizing land information, evaluating the distribution and delineation of land plots, it becomes possible to improve the quality of control and supervision over the condition and use of land.

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