About Us
ATIEMAR Heavy Industry
Over the more than 30 years of experienceATIEMAR Heavy Industry which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ².
689+
Manufacturing Machine
170+
Nations Services Covered
3200+
Number of Employees
Our Services
We Provide all kinds Of Services
Workshop
Spare Parts
Project Design
Packing
Plan design
Gerneral Construction
Project Management
Maintaince
radio communications in coal mining
2021-10-13T19:10:03+00:00
CDC Mining Basic Wireless Communication and
Many underground coal mines use some form of telephone as the primary means of communications between the surface and the underground miners It is easy to imagine two phones (or transceivers, as introduced in Section 211) directly connected by
Radio propagation at 900 MHz in underground coal mines
Additional losses due to coal mine curvatures and common coal mining equipment obstructions are also presented A hybrid tunnel propagation model consisting of the free space propagation model and the modified waveguide propagation model is used to explain some measurement results Based on these results, we believe that microcellular radio communications systems are feasible in coal mines
An Experiment Study of the Propagation of Radio Waves
A longwall coal mining tunnel is the most important working area in a coal mine It has long been realized that radio communications can improve both productivity and safety in this dangerous area
An experiment study of the propagation of radio waves in a
The coal mining industry has long realized that reliable radio communications can improve both productivity and safety in this area Hence, many attempts to use radio communication systems in this area have been made Unfortunately, it is found that no radio system has satisfactorily provided communication services there, which, we believe, is partially due to poor understanding of the
Mine Radio Systems Mining Technology Mining News
Mine Radio Systems (MRS) has been the leading supplier of the world’s most advanced, performancedriven, scalable and reliable communication solutions engineered to improving efficiency, safety and productivity in the mining and tunneling industries for the last 25 years
Radio propagation at 900 MHz in underground coal mines
Additional losses due to coal mine curvatures and common coal mining equipment obstructions are also presented A hybrid tunnel propagation model consisting of the free space propagation model and the modified waveguide propagation model is used to explain some measurement results Based on these results, we believe that microcellular radio communications systems are feasible in coal mines
An Experiment Study of the Propagation of Radio Waves in a
A longwall coal mining tunnel is the most important working area in a coal mine It has long been realized that radio communications can improve both productivity and safety in this dangerous area
An experiment study of the propagation of radio waves in a
The coal mining industry has long realized that reliable radio communications can improve both productivity and safety in this area Hence, many attempts to use radio communication systems in this area have been made Unfortunately, it is found that no radio system has satisfactorily provided communication services there, which, we believe, is partially due to poor understanding of the
Coal Mining Radio Communication YouTube
03/08/2018 Video tentang aktivitas tambang: loading material, hauling over burden, dumping disposal area, pumping water, coal getting serta stockpile management menggu
Advances in coal mining technology ScienceDirect
01/01/2013 Bandwidth may be a somewhat limited commodity in surface mines, but the full radio frequency spectrum is available underground International realtime communication connecting the mine site, regardless of how remote it is, to a centralized corporate office, to customers, to vendors and service providers is now a reality With highspeed transmission, repeaters, and satellite interface, all
Mining Communication Solutions Motorola Solutions
Endtoend mining radio communications solutions Unifying all communications is crucial to operations and safety of all personnel throughout the mining value chain The power of team communication Today, as the world’s hunger for raw minerals continues to grow, investing in the right communication solution is critical to success View GUIDE Going beyond radio Discover the latest
Today's coal news updates from around the world Coal and
29/11/2021 Vostochnaya Mining Company implements radio communication Tuesday 23 November 2021 11:45 Vostochnaya Mining Company is switching to digital operational radio communications at the company's key mining asset, the Solntsevsky coal mine
Communications Tracking
View the World Coal article on the pros and cons of various types of communication platforms The Mining Industry’s Most Advanced Communications and Tracking Equipment Rugged, pushtotalk radios provide crystalclear voice, text and tracking – all in one device
Coal Mines in Europe A Reality We Still Need to Accept
09/07/2021 Mihai Melczer, expert in the mining industry and former CEO of Complexul Energetic Hunedoara, has recently stated for RRI (Radio Romania International) that: “When you see that coal mining is no longer profitable and exploitation costs are rising, exploitation must be stopped There is a need for a reorientation towards industries that offer a margin, which allow to reduce operating costs
Russia: At least 11 dead and 46 trapped after fire in coal
25/11/2021 A fire in a Russian mine has left at least 11 people dead and up to 46 trapped 820ft underground Four people are in a critical condition and dozens in
An Experiment Study of the Propagation of Radio Waves in a
A longwall coal mining tunnel is the most important working area in a coal mine It has long been realized that radio communications can improve both productivity and safety in this dangerous area
An Experiment Study of the Propagation of Radio Waves in a
07/04/2009 Abstract: A longwall coal mining tunnel is the most important working area in a coal mine It has long been realized that radio communications can improve both productivity and safety in this dangerous area Hence, many attempts to use radio communications in such an environment have been made Unfortunately, no radio system has satisfactorily provided
An experiment study of the propagation of radio waves in a
A longwall coal mining tunnel is the most important working area in a coal mine It has long been realized that radio communications can improve both productivity and safety in this dangerous area Hence, many attempts to use radio communications in such an environment have been made Unfortunately, no radio system has satisfactorily provided communication
Advances in coal mining technology ScienceDirect
01/01/2013 Bandwidth may be a somewhat limited commodity in surface mines, but the full radio frequency spectrum is available underground International realtime communication connecting the mine site, regardless of how remote it is, to a centralized corporate office, to customers, to vendors and service providers is now a reality With highspeed transmission,
BBC Radio 4 File on 4, Coal Comfort?
23/07/2013 The amount of coal burned in Britain's power stations rocketed in 2012 with ministers relying on the fuel to help keep the lights on in the next few years But coal mining in Britain is now in
THE COMMUNICATIONS BREAKTHROUGH BOOSTING SAFETY AND
COMMUNICATIONS COAL FACE Underground mining accounts for close to 60% of the world’s total coal production and, over the years, there have been many advancements in operational processes and mining equipment that have led to significant improvements in both productivity and workplace safety Yet, despite all the developments that have helped to substantially
Mine Radio Systems for Underground Operations Carroll
An advanced workplace communications system maximizes the efficiency and productivity of the operation Carroll Technologies Group supplies a range of portable underground mining radio and radio systems from Kenwood and Motorola, as well as stationary leaky feeder systems Over 800 mines across North America put their faith in the solutions
The Trapper BBC Teach BBC School Radio
KS2 History The Victorians The life of a young Victorian child working in a coal mine BBC School Radio BBC Teach
Mine safety: Seven ways to make mines safer and more efficient
26/09/2018 In 2017 according to the US Department of Labor there were 15 fatalities in coal mines and 13 in metal/nonmetal operations Invest in wireless underground communications Swap your hardwired pagers for a mobile leakyfeeder communications system This is a handheld radio which every worker who has one to communicate with colleagues
Russia: At least 11 dead and 46 trapped after fire in coal
25/11/2021 A fire in a Russian mine has left at least 11 people dead and up to 46 trapped 820ft underground Four people are in a critical condition and dozens in