Design and Implementation of an Integrated Wireless Communication, Localization and Monitoring System for Coal Mines

2014 ◽  
Vol 1014 ◽  
pp. 333-338 ◽  
Author(s):  
Xiao Dong Li ◽  
Guo Guang Rong ◽  
Yong Xin Zhu
Keyword(s):  
Wireless Communication ◽  
High Reliability ◽  
Coal Mines ◽  
Communication Technologies ◽  
Underground Mines ◽  
Gas Monitoring ◽  
Underground Communication ◽  
Mine Production ◽  
The World ◽  
Communication Equipment

As major areas in the world have been protected with surveillance information with the development of wireless communication technologies, underground mines are still hit by frequent accidents due to insufficient monitoring and sensing, which would be improved with implementation of Internet of Things (IOT). However, a low-power, high reliability wireless communication equipment integrated with personnel localization, underground gas monitoring and IOT functions has not been implemented to enable underground IOT. Having explored wireless technologies and underground communication technologies, we propose in the paper the design of a communication system incorporating wireless call, gas monitoring, personnel localization functions through the integration of ZigBee (IEEE802.15.4) and Ethernet. This system has been realized and tested under laboratory conditions. The system was accepted by China coal mines in principle for application in their coal mine production line.

scholarly journals An Optimized Approach to Channel Modeling and Impact of Deteriorating Factors on Wireless Communication in Underground Mines

Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5905
Author(s):  
Fawad Javaid ◽  
Anyi Wang ◽  
Muhammad Usman Sana ◽  
Asif Husain ◽  
Imran Ashraf
Keyword(s):  
Wireless Communication ◽  
Coal Mines ◽  
Channel Modeling ◽  
Signal Propagation ◽  
Underground Mines ◽  
Delay Spread ◽  
Physical Parameters ◽  
Multimode Waveguide ◽  
Underground Coal Mines ◽  
5 Ghz

The environment of underground coal mines has challenging properties that makes this zone inadaptable for a stable communication system. Additionally, various deteriorating physical parameters strongly affect the performance of wireless networks, which leads to limited network coverage and poor quality of data communication. This study investigates the communication capability in underground coal mines by optimizing the wireless link to develop a stable network for an underground hazardous environment. A hybrid channel-modeling scheme is proposed to characterize the environment of underground mines for wireless communication by classifying the area of a mine into the main gallery and sub-galleries. The complex segments of mine are evaluated by categorizing the wireless links for the line-of-sight (LOS) zones and hybrid modeling is employed to examine the characteristics of electromagnetic signal propagation. For hybrid channel modeling, the multimode waveguide model and geometrical optic (GO) model are used for developing an optimal framework that improves the accessibility of the network in the critical time-varying environment of mines. Moreover, the influence of various deteriorating factors is analyzed using 2.4 GHz to 5 GHz frequency band to study its relationship with the vital constraints of an underground mine. The critical factors such as path loss, roughness loss, delay spread, and shadow fading are examined under detailed analysis with variation in link structure for the mine.

Convergence in norming and control of modern wireless technologies electromagnetic fields

2020 ◽  
Vol 60 (9) ◽  
pp. 610-613
Author(s):  
Michail Yu. Maslov ◽  
Yuri M. Spodobaev
Keyword(s):  
Wireless Communication ◽  
Electromagnetic Fields ◽  
Communication Systems ◽  
Communication Technologies ◽  
Telecommunications Industry ◽  
High Tech ◽  
Wireless Technologies ◽  
Almost All ◽  
Network Technologies ◽  
And Control

Telecommunications industry evolution shows the highest rates of transition to high-tech systems and is accompanied by a trend of deep mutual penetration of technologies - convergence. The dominant telecommunication technologies have become wireless communication systems. The widespread use of modern wireless technologies has led to the saturation of the environment with technological electromagnetic fields and the actualization of the problems of protecting the population from them. This fundamental restructuring has led to a uniform dense placement of radiating fragments of network technologies in the mudflow areas. The changed parameters of the emitted fields became the reason for the revision of the regulatory and methodological support of electromagnetic safety. A fragmented structural, functional and parametric analysis of the problem of protecting the population from the technological fields of network technologies revealed uncertainty in the interpretation of real situations, vulnerability, weakness and groundlessness of the methodological basis of sanitary-hygienic approaches. It is shown that this applies to all stages of the electromagnetic examination of the emitting fragments of network technologies. Distrust arises on the part of specialists and the population in not only the system of sanitary-hygienic control, but also the safety of modern network technologies is being called into question. Growing social tensions and radio phobia are everywhere accompanying the development of wireless communication technologies. The basis for solving almost all problems of protecting the population can be the transfer of subjective methods and means of monitoring and sanitary-hygienic control of electromagnetic fields into the field of IT.

Modern patterns of development of the communication and informatization sphere

2019 ◽  
pp. 14-19
Author(s):  
Maryna Demyanchuk
Keyword(s):  
Economic Development ◽  
Information And Communication Technologies ◽  
Communication Technologies ◽  
Economic Resource ◽  
Telecommunication Services ◽  
The World ◽  
Information And Communication ◽  
Per Capita ◽  
Ict Development ◽  
Telecommunications Services

Information and telecommunication services are currently a full-fledged resource for social development compared to traditional resources. The growth of the level of scientific and technological progress has led to the incredibly fast development paces in the sphere of information and communication technologies, which has a significant impact on the development of the economy. On the basis of a thorough analysis of the sectors of information and communication technologies and components of the ICT development index, the article substantiates the need for accelerated digitization of the majority of enterprises of different spheres of economic activity with the aim of qualitative development of Ukrainian economy in order to increase its competitiveness in the world. This is explained by the fact that information and technology represent the main economic resource in the period of formation of information society and digital economy, and enterprises of the sphere of communication and informatization are a catalyst for social and economic development of the country as a whole. Using a methodological toolkit of the theory of systematic and correlation-regression analysis, an economic-mathematical model of the development of the sphere of communication and informatization in the regions of the world and individual countries of the world is constructed. It is based on the existing pattern of leading development of the communications sector, but takes into account the degree of economy dependence on the ICT development, which in some regions and countries is 100%. This is due to the approaching mass availability of ICT services in some countries in these regions. On the basis of the constructed model, the forecasting of GDP PPP per capita was carried out, which showed faster rates of growth of the country’s economy with the growth of the development level of the sphere of communication and informatization and accessibility of telecommunication services. In turn, the availability of telecommunication services is influenced by the digital skills of society and the level of their prices, which has necessitated determining the dependence of GDP PPP per capita on prices for communication services of countries with varying degrees of socio-economic development. This makes it possible to identify reserves for improving the productivity of individuals while increasing the availability of telecommunications services.

Globalization and Benedict XVI’s Caritas in Veritate

2018 ◽  
Author(s):  
Matthew A. Shadle
Keyword(s):  
Hong Kong ◽  
Vulnerable Populations ◽  
Global Economy ◽  
Catholic Social Teaching ◽  
Communication Technologies ◽  
Social Teaching ◽  
Catholic Social Thought ◽  
Caritas In Veritate ◽  
The World ◽  
The Trinity

In recent years the economy has become globalized. Globalization is the increased flow of goods, services, capital, people, and culture facilitated by innovations in transportation and communication technologies. This chapter examines the phenomenon of globalization and its impact on Catholic social teaching. It looks, in particular, at Pope Benedict XVI’s encyclical Caritas in Veritate. Pope Benedict criticizes how the current global economy exploits and excludes vulnerable populations around the world. Caritas in Veritate further develops the communio framework initiated by John Paul II and proposes that the communion of the three Persons of the Trinity provides a model for the shape globalization should take, recognizing unity in the midst of diversity. The chapter also looks at how Catholic social thought itself is globalizing, examining in particular the work of Mary Mee-Yin Yuen from Hong Kong and Stan Chu Ilo from Nigeria.

scholarly journals A Modular Design Concept for Shaping Future Wireless TSN Solutions

Information ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 12
Author(s):  
Christoph Fischer ◽  
Dennis Krummacker ◽  
Michael Karrenbauer ◽  
Hans Dieter Schotten
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Modular Design ◽  
High Reliability ◽  
Wireless Communication Systems ◽  
Industrial Manufacturing ◽  
Use Of Time ◽  
International Importance ◽  
Working Solution ◽  
Hard Real Time

The use of wireless communication systems in industrial environments is gaining international importance. The requirements, which are placed thereby on the communication systems, are manifold depending on the specific use. In the field of industrial manufacturing, however, many applications are characterized by high reliability requirements and hard real-time demands. The latter requires a time-deterministic handling of processed transmissions and therefore requires the use of Time-Sensitive Networking (TSN) solutions. In this paper, we briefly describe which functionalities characterize a wireless TSN system and which approaches have already been pursued in the literature and standardization. Subsequently, we present a concept for a toolbox that allows one to combine the required functionalities into a working solution, which can be used as a guideline for software-based implementation. Additionally, since reliability of transmissions is one of the key challenges, especially in wireless communication, to achieve a performance comparable to wired systems, we provide some further design considerations to improve.

A Comprehensive Review on Wired and Wireless Communication Technologies and its Challenges in Smart Residential Buildings

2021 ◽  
Vol 14 ◽  
Author(s):  
Senthil Prabu Ramalingam ◽  
Prabhakar Karthikeyan Shanmugam
Keyword(s):  
Wireless Communication ◽  
Residential Buildings ◽  
Optimization Algorithms ◽  
Communication Protocols ◽  
Communication Technologies ◽  
Data Rate ◽  
Appropriate Technology ◽  
Security And Privacy ◽  
Electricity Cost ◽  
Channel Bandwidth

Background: The smart grid communication network is constructed with three tiers namely, Home Area Networks (HANs), Neighborhood Area Networks (NANs) and Wide Area Networks (WANs). These networks function with various communication protocols like table protocol, on-demand protocol, Wi-Fi, Zigbee, Z-Wave, Wi-MAX, GSM, LTE, Cognitive Radio Networks. The network interconnection is heterogonous and all appliances have to communicate through the IP gateways. A large amount of data is collected from various sensors placed in different locations. The analytics on large data- “big data” is essential because these data were used to organize and plan an efficient control and management of the smart home including secured data exchange in different sectors. Objective: This paper investigates broadly on data rate, channel bandwidth, power consumption, and a coverage range of both wired and wireless communication technologies used in residential buildings. Besides, a literature survey on optimization algorithms with various constraints to manage home appliances through scheduling is included. The paper also discusses the communication standards along with security and privacy requirements for smart metering networks. Conclusion: Discussion on IEEE standards for both wired and wireless communication protocols. Gives direction to identify the suitable communication technique through mathematical model for computing the communication channel bandwidth. Comparison of various optimization algorithms with multiple constraints in HEMS to achieve the minimum electricity cost and user comfort (with and without Renewable Energy Sources). From the investigation on both wired and wireless networks, the wireless communication networks (Zig-Bee & Wi-Fi) are mostly preferred to use in HAN because of more reliability and low cost. Zigbee is the most appropriate technology used for data transmission between the individual appliances and smart meters. Wi-Fi is a suitable technology for controlling and monitoring appliances because of its high data rate.

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