23-07-2012, 12:20 PM
FIRE DETECTING ROBOTS
FIRE DETECTING ROBOTS.ppt (Size: 1.6 MB / Downloads: 93)
Introduction
Fire accidents may occur due to explosive or flammable materials.
They can be prevented by taking safety measures.
Robots are very useful in places were the working conditions are unpleasant and hazardous.
To detect the fire and to activate the fire preventive systems .
Flame sensors and thermistor robots are used
Robot Anatomy
Robot anatomy is physical construction of body.
It consists of 4 parts
1)arms
2)end effecter
3)links and joints
4)base
Function of parts
arm –it transfers objects and tools from one point
to another as instructed by controller
end effecter-it is attached at the end and used to transfer the parts from point to point. Robot used the end effector is known as gripper.
Links and joints-A joint is part of arm which connects two links and allows relative motion between them.
Base- Each robot has base which is fixed to the wall or floor.
Sequence of operations
Non servo controlled robots-
These are generally used for limited sequence and often referred to pick and place or end point robots
ROBOT CONTROLLER
The controller is the part of the Robot which operates the mechanical arm and maintains contacts with its environment. The device is a computer composed of hardware and software combined to enable it to carry out its assigned tasks.
Sensors
Sensors are used as peripheral devices in robotics include both simple and sophisticated types such as machine vision system.
Their function in a robotic work cell is to permit the robots activities to be coordinated with other activities in the cell. Sensors are an important component in a work, control and in safety monitoring systems.
WORKING OF FIRE DETECTING ROBOTS
The robot along with two sensors moves in all the directions from its mounted position, so it covers more sensory volume. When the flame or high temperature point was detected, the Robot motion was stopped automatically to know the fire accident point.
Then the Signals from the sensors are sent to the computer terminal and it activates the fire preventive system.