scholarly journals Development of a Protective Enclosure for Remote Sensing Applications—Case Study: Laser Scanning in Underground Coal Mines

Resources ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 56 ◽  
Author(s):  
Mark Dunn ◽  
Peter Reid ◽  
John Malos
Keyword(s):  
Laser Scanning ◽  
Coal Mines ◽  
Mining Industry ◽  
Electrical Equipment ◽  
Regulatory Requirement ◽  
Sensing Applications ◽  
Mapping System ◽  
Underground Coal Mines ◽  
Remote Operations

Sensing for equipment location and mapping in explosion risk zones such as underground coal mines is a difficult proposition due to the regulatory requirement for certified protective enclosures to safely house the required complex electrical equipment. This paper provides a case study for the process involved in creating and implementing an optical-grade enclosure for use in these environments. The result of this process has been the creation of ExScan®, a 3D laser mapping system that is providing step-change capability for remote operations and automation in the underground coal mining industry.

scholarly journals Productivity Improvement in Underground Coal Mines - A Case Study

2021 ◽  
Vol 12 (3) ◽  
Author(s):  
Devi Prasad Mishra ◽  
Mamtesh Sugla ◽  
Prasun Singha
Keyword(s):  
Coal Mines ◽  
Productivity Improvement ◽  
Underground Coal Mines

scholarly journals INVESTIGATING THE PERFORMANCE OF A HANDHELD MOBILE MAPPING SYSTEM IN DIFFERENT OUTDOOR SCENARIOS

2021 ◽  
Vol XLIII-B1-2021 ◽  
pp. 103-109
Author(s):  
E. Maset ◽  
S. Cucchiaro ◽  
F. Cazorzi ◽  
F. Crosilla ◽  
A. Fusiello ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Point Clouds ◽  
Qualitative Assessment ◽  
Case Scenario ◽  
Mobile Mapping ◽  
Mapping System ◽  
Mobile Mapping System ◽  
Survey Instruments ◽  
Large Building

Abstract. In recent years, portable Mobile Mapping Systems (MMSs) are emerging as valuable survey instruments for fast and efficient mapping of both internal and external environments. The aim of this work is to assess the performance of a commercial handheld MMS, Gexcel HERON Lite, in two different outdoor applications. The first is the mapping of a large building, which represents a standard use-case scenario of this technology. Through the second case study, that consists in the survey of a torrent reach, we investigate instead the applicability of the handheld MMS for natural environment monitoring, a field in which portable systems are not yet widely employed. Quantitative and qualitative assessment is presented, comparing the point clouds obtained from the HERON Lite system against reference models provided by traditional techniques (i.e., Terrestrial Laser Scanning and Photogrammetry).

scholarly journals Productivity Improvement in Underground Coal Mines - A Case Study

2013 ◽  
Vol 12 (3) ◽  
pp. 48-53 ◽  
Author(s):  
Devi Prasad Mishra ◽  
Mamtesh Sugla ◽  
Prasun Singha
Keyword(s):  
Coal Mines ◽  
Productivity Improvement ◽  
Underground Coal Mines

scholarly journals Safety barrier of electrical equipment for environments with a potential explosion in underground coal mines

2020 ◽  
Vol 14 (3) ◽  
pp. 78-86
Author(s):  
Titu Niculescu ◽  
Victor Arad ◽  
Marius Marcu ◽  
Susana Arad ◽  
Florin Gabriel Popescu
Keyword(s):  
Coal Mines ◽  
Electrical Equipment ◽  
Safety Barrier ◽  
Underground Coal Mines

scholarly journals A simulation experiment study to examine the effects of noise on miners’ safety behavior in underground coal mines

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jing Li ◽  
Yaru Qin ◽  
Lei Yang ◽  
Zhen Wang ◽  
Ke Han ◽  
...  
Keyword(s):  
Coal Mine ◽  
Noise Level ◽  
Simulation Experiment ◽  
Coal Mines ◽  
Health And Safety ◽  
Mining Industry ◽  
Noise Pollution ◽  
Working Environment ◽  
Safety Behavior ◽  
Underground Coal Mines

Abstract Background Noise pollution in coal mines is of great concern. Personal injuries directly or indirectly related to noise occur from time to time. Its effects impact the health and safety of coal mine workers. This study aimed to identify if and how the level of noise impacts miners’ safety behavior in underground coal mines. Methods In order to study the influence of noise on miners in the mining industry, we built a coal mine noise simulation experiment system, and set the noise test level at 50 dB ~ 120 dB according to the actual working environment at well. We divided the noise gradient into 8 categories and conducted 93 experiments, in which we aim to test miners’ attention distribution, fatigue, and reaction under each level, and the experimental results were analyzed by SPSS22.0 software. Results The results show that the increase of environmental noise level will have an impact on the attention, reaction, and fatigue. The noise is positively related to the fatigue, the noise is negatively related to the attention and reaction. In the noise environment, the sensitivity of the personnel to optic stimuli is higher than that to acoustic stimuli. The test indicators of attention, fatigue, and reaction will change significantly, when the noise level is greater than 70 ~ 80 dB. Conclusions From the perspective of accident prevention, the noise level can be controlled within the range of less than 70 ~ 80 dB, which can control the occurrence of accidents to a certain extent.

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