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1. COAL MINE GAS MONITORING SYSTEM USING
WIRELESS SENSOR NETWORK
ABSTRACT
Based on the present condition, it is urgent that the gas detection cable
communication system should be replaced by the wireless communication system. The
wireless sensors distributed in the environment can be used as the intelligent gas monitoring
system. Adopting the multi-layer data fused to design working tactics and importing the
artificial neural networks to analyze detecting results.
The wireless sensors system communicates with the control center through the optical
fiber cable. All the gas sensor nodes distributed in coal mine make up an intelligent, flexible
structure wireless network system forming coal mine gas monitoring system based on
wireless sensor network.
This project uses regulated 5V, 750mA power supply. 7805 three terminal voltage
regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the
ac output of secondary of 230/18V step down transformer.
HARDWARE REQUIREMENTS
 Microcontroller
 Power supply
 LCD display
 Gas sensor
 Zigbee
 Max 232
ECWAY TECHNOLOGIES
IEEE PROJECTS & SOFTWARE DEVELOPMENTS
OUR OFFICES @ CHENNAI / TRICHY / KARUR / ERODE / MADURAI / SALEM / COIMBATORE
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Visit: www.ecwayprojects.com Mail to: ecwaytechnologies@gmail.com

2.  Mobile Phone
BLOCK DIAGRAM
TRANSMITTER
RECEIVER

3. POWER SUPPLY
ADVANTAGES
 Low cost and reliable
 Accurate and very fast
APPLICATIONS
 Coal mines
 Industrial
 House hold