scholarly journals BPL-PLC Voice Communication System for the Oil and Mining Industry

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4763
Author(s):  
Grzegorz Debita ◽  
Przemysław Falkowski-Gilski ◽  
Marcin Habrych ◽  
Grzegorz Wiśniewski ◽  
Bogdan Miedziński ◽  
...  
Keyword(s):  
Fiber Optics ◽  
Communication System ◽  
Communication Systems ◽  
High Efficiency ◽  
Coal Dust ◽  
Mining Industry ◽  
Power Line ◽  
Communication Link ◽  
Voice Communication ◽  
Medium Voltage

Application of a high-efficiency voice communication systems based on broadband over power line-power line communication (BPL-PLC) technology in medium voltage networks, including hazardous areas (like the oil and mining industry), as a redundant mean of wired communication (apart from traditional fiber optics and electrical wires) can be beneficial. Due to the possibility of utilizing existing electrical infrastructure, it can significantly reduce deployment costs. Additionally, it can be applied under difficult conditions, thanks to battery-powered devices. During an emergency situation (e.g., after coal dust explosion), the medium voltage cables are resistant to mechanical damage, providing a potentially life-saving communication link between the supervisor, rescue team, paramedics, and the trapped personnel. The assessment of such a system requires a comprehensive and accurate examination, including a number of factors. Therefore, various models were tested, considering: different transmission paths and types of coupling (inductive and capacitive), as well as various lengths of transmitted data packets. Next, a subjective quality evaluation study was carried out, considering speech signals from a number of languages (English, German, and Polish). Based on the obtained results, including both simulations and measurements, appropriate practical conclusions were formulated. Results confirmed the applicability of BPL-PLC technology as an efficient voice communication system for the oil and mining industry.

PENGARUH PENGGUNAAN CODEC STANDART ITU G.729 TERHADAP SISTEM KOMUNIKASI VOIP

2021 ◽  
Vol 17 (1) ◽  
pp. 11-22
Author(s):  
Wahyu Adi Prijono
Keyword(s):  
Communication System ◽  
Communication Systems ◽  
Internet Protocol ◽  
Voice Over Internet Protocol ◽  
Data Communications ◽  
Voice Communication ◽  
Internet Telephony ◽  
Voice Signal ◽  
Ip Network ◽  
Packet Switch

Voice over Internet Protocol (VoIP) is a technology that is capable of passing voice traffic, in the form of packets through the network Internet Protocol (IP). IP network itself is a data communications network based packet-switch. The voice signal before experiencing bundled voice coding or format conversion of sound into digital form that can be passed over an IP network. Telephony, Internet telephony, or termed VoIP (Voice Over Internet Protocol.This communication system use VoIP (Voice over Internet Protocol), ie voice calls over data services (internet). This communication was developed using Android-based devices. Based on characteristics, android devices are open source, so users do not need to have a license to be able to have android-based devices. In addition, the android device that must be connected to a SIP (Session Iniation Protocol) is a data service that can be done with a paid subscription of the user of the operator using a conventional pulse. Telecommunications designed will use a hybrid system, the merger between VoIP communications with data communications GSM network. With basic calculations where Coding standards G 729, is a standard that can be used for voice communication system through data networks with rate of 8 Kbps. The implementation of the G729 codec is effect on communication systems VOIP.

Performance evaluation for medium voltage MIMO-OFDM power line communication system

2020 ◽  
Vol 17 (1) ◽  
pp. 151-162 ◽  
Author(s):  
Yingxue Li ◽  
Min Zhang ◽  
Wenguang Zhu ◽  
Mengyuan Cheng ◽  
Cheng Zhou ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Communication System ◽  
Power Line ◽  
Power Line Communication ◽  
Medium Voltage ◽  
Mimo Ofdm

Research toward a High-Efficiency Voice Communication System

Science ◽  
1965 ◽  
Vol 148 (3670) ◽  
pp. 667-668 ◽  
Author(s):  
H. F. Olson ◽  
H. Belar ◽  
E. S. Rogers
Keyword(s):  
Communication System ◽  
High Efficiency ◽  
Voice Communication

scholarly journals Design and Implementation of Infrared (IR) Communication System

2018 ◽  
Vol 11 (3) ◽  
pp. 29-33
Author(s):  
Haraa Raheem Hatem
Keyword(s):  
Communication System ◽  
Near Infrared ◽  
Infrared Light ◽  
Communication Link ◽  
Infrared Band ◽  
Voice Communication ◽  
Design And Implementation ◽  
Propagation Of Light ◽  
Light Waves ◽  
Audio Communication

Wireless Infrared (IR) communications system is meant to use free-space propagation of light waves as a transmission medium in near infrared band. In this paper, voice communication system is simulated and implemented by protues software using IR as a source that is established an audio communication (link to transmit and receive voices and music via infrared light). The outcome of this proposed work is to design and implementation an optical wireless system to transmit voice over a certain distance in laboratory. This system has many advantages such as is a common, inexpensive, and the transmitter or receiver can be showed to another location with least distraction

scholarly journals Bidirectional Communication System on Power Line Integrated on Electronic Board for Driving of LED and HID Lamps

2012 ◽  
Vol 2012 ◽  
pp. 1-10
Author(s):  
P. Visconti ◽  
S. D'Amico ◽  
A. Baschirotto ◽  
D. Romanello ◽  
P. Costantini ◽  
...  
Keyword(s):  
Communication System ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Power Line ◽  
Production Costs ◽  
Digital Information ◽  
Light Emitting ◽  
Communication Techniques ◽  
Electronic Board ◽  
And Control

We present the bidirectional power line communication system developed in parallel to an electronic board for driving and control of HID (high-intensity discharge) and LED (light-emitting diode) lamps. The communication system, developed to be applied in the sector of public illumination, is been designed to combine high efficiency and reliability with low production costs; it consists indeed of discrete cheap components. The communication system described in this paper implements the technique of transporting digital information over existing power lines, avoiding the issue of installing new cables. Digitized signals can use power line cables through the amplitude voltage and current modulation. The solution proposed is more advantageous compared to communication techniques currently on the market which are essentially two types, power line carrier (modem for high-voltage lines) or radio (zig-Bee transceiver).

Research towards a High‐Efficiency Voice‐Communication System

1965 ◽  
Vol 37 (6) ◽  
pp. 1199-1199
Author(s):  
Harry F. Olson ◽  
H. Belar ◽  
Edward S. Rogers
Keyword(s):  
Communication System ◽  
High Efficiency ◽  
Voice Communication
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