Real Time Monitoring & Analyzation Of Hazardous Parameters In Underground Coal Mines Using Intelligent Helmet System

2018 ◽  
Author(s):  
Akshunya Mishra ◽  
Saksham Malhotra ◽  
Ruchira ◽  
Pallavi choudekar ◽  
H.P. Singh
Keyword(s):  
Real Time ◽  
Coal Mines ◽  
Real Time Monitoring ◽  
Underground Coal Mines

Study of Real-Time Monitoring System on the Underground Mining Activities Based on Explosion Source Location Technology

2012 ◽  
Vol 190-191 ◽  
pp. 1179-1182
Author(s):  
Xiu Zhi Meng ◽  
Zeng Zhi Zhang ◽  
Zong Sheng Wang
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Underground Mining ◽  
Coal Mines ◽  
Source Location ◽  
Environmental Damage ◽  
Mining Activities ◽  
Real Time Monitoring ◽  
P Waves ◽  
Vibration Sensors

The mining boundary ultra-layer & cross-border of some small coal mines in the profit-driven results in a many of safety accidents, waste of resources and environmental damage while the state can not achieve the full uninterrupted supervision because of the backward monitoring tools and equipment. In this situation the real-time monitoring system for underground mining activities is designed based on explosion source location technology. Small and medium-sized coal mines tunnel by blasting operations. The P waves are picked up by acceleration vibration sensors buried underground that are identified and dealt by using wavelet transform. The bursting point is located by the Geiger algorithm and displayed in the mine’s electronic map. The monitor system has good stability, small positioning error by field-proven.

Real Time Entry Prohibition System for Coalmines

2020 ◽  
Vol 11 (2) ◽  
pp. 45-65
Author(s):  
Urmila Shrawankar ◽  
Rahul Neware ◽  
Pranay Mangulkar
Keyword(s):  
Wireless Communications ◽  
Real Time ◽  
Coal Mines ◽  
Well Being ◽  
Base Station ◽  
Wireless Transmission ◽  
Underground Mines ◽  
Software Systems ◽  
Underground Coal Mines ◽  
Favorable Conditions

This article focuses on the hazardous conditions prevailing in underground coal mines and the decision to prohibit entry, when conditions are adverse. Thus, the ongoing observation framework is helpful for ascertaining the conditions for working in underground coal mines and for essential safety and well-being measures. The advancements in WSN lead to advancements in wireless communications. The various sensors are deployed at the location and sense the environment and provide recent activities of the underground coal mines. The sensors transmit the procured information to the base station, principally the A-D transformation. The sensors can be considered a hub to the base station. Wireless transmission is used to send the data to the user. The designed hardware and software systems are used for the identification of the parameters and as per the thresholds, the decision and the prohibition of workers before entering into the mine is decided. The ML system helps in checking the favorable conditions for working in underground mines. While experimenting, real-time sensor generated data is used.

Wireless real-time sensing platform using vibrating wire-based geotechnical sensor for underground coal mines

2018 ◽  
Vol 269 ◽  
pp. 212-217 ◽  
Author(s):  
P.K. Mishra ◽  
Pratik ◽  
Manish Kumar ◽  
Subhash Kumar ◽  
P.K. Mandal
Keyword(s):  
Real Time ◽  
Coal Mines ◽  
Vibrating Wire ◽  
Sensing Platform ◽  
Underground Coal Mines

scholarly journals Experimental Study on Comprehensive Real-Time Methods to Determine Geological Condition of Rock Mass along the Boreholes while Drilling in Underground Coal Mines

2019 ◽  
Vol 2019 ◽  
pp. 1-17 ◽  
Author(s):  
Ganggang Niu ◽  
Kai Zhang ◽  
Bosong Yu ◽  
Yanlong Chen ◽  
Yu Wu ◽  
...  
Keyword(s):  
Rock Mass ◽  
Real Time ◽  
Coal Mines ◽  
Vibration Measurement ◽  
Geological Condition ◽  
Camera System ◽  
Underground Coal Mines ◽  
Measurement While Drilling ◽  
Borehole Camera ◽  
Rock Mass Condition

The geological condition is essential for mining design and disaster control in underground coal mines. The present research focuses on the real-time assessment method on rock mass condition during drilling boreholes. In situ comprehensive experiments were carried out using three methods, which are measurement while drilling (MWD) system, vibration measurement while drilling (VMWD) system, and borehole camera detecting system. In the MWD system, the operating parameters of the drilling machine were recorded, and a dimensionless index Id based on the collected parameters was adopted to assess the geological condition along the borehole. The results show that the state of rock mass can be well classified using the MWD system for both the cross-layer and in-seam boreholes. In the VMWD system, the vibration of the drilling bit was monitored, and the signal was analyzed in both time domain and frequency domain. The results indicate that the rock mass condition can be quantitatively evaluated using the mean square value of the signal and qualitatively estimated using the energy of the spectrum. In the borehole camera system, the photos of the rock mass along the borehole could be well captured, and the identified rock mass condition was used to verify the results of the MWD and VMWD systems. Comprehensive compassion between the results from the three systems shows that all the methods can give valuable information for the geological condition, and the outcomes of the different methods are generally comparable. For practical purposes, the advantages of the involved three detecting systems are discussed.

Study of Real-Time Dry Bulb and Relative Humidity Sensors in Underground Coal Mines

2016 ◽  
Vol 37 (12) ◽  
Author(s):  
Manoj Khanal ◽  
Ron McPhee ◽  
Bharath Belle ◽  
Peter Brisbane ◽  
Bevan Kathage
Keyword(s):  
Relative Humidity ◽  
Real Time ◽  
Coal Mines ◽  
Humidity Sensors ◽  
Underground Coal Mines

scholarly journals A Fiber Bragg Grating-Based Condition Monitoring and Early Damage Detection System for the Structural Safety of Underground Coal Mines Using the Internet of Things

2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Byung Wan Jo ◽  
Rana Muhammad Asad Khan ◽  
Yun Sung Lee ◽  
Jun Ho Jo ◽  
Nadia Saleem
Keyword(s):  
Internet Of Things ◽  
Damage Detection ◽  
Information Sharing ◽  
Fiber Bragg Grating ◽  
Real Time ◽  
Coal Mines ◽  
Structural Safety ◽  
The Internet ◽  
Bragg Grating ◽  
Underground Coal Mines

Accurate sensing is the key to structural health monitoring of underground coal mines while using fiber Bragg grating (FBG) sensors. However, the previously developed systems for structural monitoring of underground mines have been limited to monitoring without any capability of damage detection. Therefore, this study integrates a highly accurate FBG monitoring system and output-only data-driven approaches on an Internet of things (IoT)-based platform to develop a comprehensive mine structural safety system. This system relies on a Web 2.0 main server that runs data acquisition, data processing, and damage detection algorithms along with real-time information sharing at remote locations. This system was successfully implemented at the Hassan Kishore coal mine, situated in the Salt Range of Pakistan. Wavelength division multiplexing of the FBG strain sensors reliably captured the effects of dynamic and continuous coal excavation on the stability of mine roadway and access galleries. Principal component analysis, along with hierarchical clustering, was used to determine the damage indicator of the mine. The damage index was validated, showing the minimum value for 2% stiffness reduction. Thus, integration of FBG technology with the Internet can be effectively applied for early safety assessment of underground coal mines and information sharing in real time.

1618: Real-Time Monitoring of Nitric Oxide and Blood Flow During Ischemia-Reperfusion in the Rat Testis

2006 ◽  
Vol 175 (4S) ◽  
pp. 521-521
Author(s):  
Motoaki Saito ◽  
Tomoharu Kono ◽  
Yukako Kinoshita ◽  
Itaru Satoh ◽  
Keisuke Satoh
Keyword(s):  
Nitric Oxide ◽  
Blood Flow ◽  
Real Time ◽  
Ischemia Reperfusion ◽  
Real Time Monitoring ◽  
Rat Testis

GaN heteroepitaxy by remote plasma MOCVD : Real time monitoring by laser reflectance interferometry

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-1175-Pr3-1182 ◽  
Author(s):  
M. Losurdo ◽  
A. Grimaldi ◽  
M. Giangregorio ◽  
P. Capezzuto ◽  
G. Bruno
Keyword(s):  
Real Time ◽  
Real Time Monitoring ◽  
Remote Plasma ◽  
Laser Reflectance

INVESTIGATION OF HAND KINEMATICS TOWARDS FRONT CRAWL SWIMMING USING NON-INVASIVE REAL-TIME MONITORING SYSTEM

2014 ◽  
Author(s):  
Rozaimi Ghazali ◽  
◽  
Asiah Mohd Pilus ◽  
Wan Mohd Bukhari Wan Daud ◽  
Mohd Juzaila Abd Latif ◽  
...  
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Real Time Monitoring ◽  
Front Crawl ◽  
Non Invasive ◽  
Hand Kinematics
Sign in / Sign up

Export Citation Format

Share Document