ieee 2012 projects for m tech btech ece eee embedded systems@ srcembedded solutions- hyderabad. web:www.srcembedded.com, ph-8297 313 858 mail:srcembedded@gmail.com

1. Hazardous Gas Detecting Method Applied in Coal Mine
Detection Robot
Abstract:
As one of the largest coal production and consumption countries in the world, many
countries are having related accidents occurred frequently such as gas explosion, flood, breaking
out of fire during the exploitation of coal mine. Coal Mine Detection Robot can be substituted or
partial substituted for emergency workers to enter the mine shaft disaster site and detect
hazardous gas and do some environmental exploration and surveying task.
Coal Mine Detection Robot uses to detect hazardous gas simultaneously. The principle of
gas survey meter of infra-red spectrum is according to the selectively absorption of infrared
radiation by the mash gas, CO to achieve the detection of their concentration. The advantages of
this kind of hazardous gas detecting are: simultaneously and rapidly detecting hazardous gas and
high sensitivity, good selectivity and fast response. Otherwise, it is easy to be taken by robot due
to its simple and light structure, have a lager detection range and probe is not easy failure to be
poisoning and aging.
Proposed System:
The research of Coal Mine Detection Robot can make the coal mine detection works
improving a lot, and reduce the casualties caused by mine accident. It will be substituted or
partial substituted for emergency workers to enter the worksite and to carry out environmental
prospecting and surveying task. Here, in this project using Zigbee technology the details gets
communicated and so we can identify the situation happening under the ground. This robot can
go into explosion environment and detect gas content and temperature. Here using CCTV the
images are captured in the coal mine and monitored in the display unit. The gas and temperature
details are sensed through corresponding sensors, and fed to the microcontroller unit.
Microcontroller unit, in turn sends that digital data to control section through Zigbee
communication. In the control section, according to the sensor details the robotic movement is

2. done through keypad unit, using the microcontroller the keypad inputs are taken as input and that
corresponding details are sent through Zigbee communication. According to the keypad input
received the robot is controlled by microcontroller in the robot section. In order to control the
motors used in the robot, we use relays in the robot section, relays are nothing but the
electromagnetic switch, which activates the motors according to the given input from the
microcontroller.
Block Diagram:
Control Section:
Power Supply
8051
Micro
Controller
KEYPAD
LCD
Buzzer

3. Robot Section:
Power Supply
Motor
Driver
PIC
Temperature
Sensor
R
Micro
O
Controller
Gas Detection
Sensor
B
O
Motor
Driver
T
CCTV

4. Hardware Requirements:
 8051 Microcontroller
 PIC Microcontroller
 Keypad
 Temperature and Gas Sensor
 Zigbee Transceiver
 CCTV
 LCD and Buzzer
 Relay Driver
 Robot Mechanism
Software Requirements:
 Embedded C
 Keil C Compiler
Advantages:
 This robot has automatic collision avoidance system.
 It easily carries food, medicine to victims, while other robots not do.
Application:
 It can be used in coal mine industries