23-09-2013, 04:36 PM
HUMAN TRACKING SYSTEM FOR SMART FAN AND LIGHTING SYSTEM
TRACKING SYSTEM .ppt (Size: 173.5 KB / Downloads: 90)
OBJECTIVE
In previous days the blind people used
spectacles and walking stick by using this
They face so many difficulties
But now by using this navigation system
They can reach their distances with out
any problems and can reach safely
TECHNICAL DETAILS
ATMEGA8 microcontroller
ULTRASONIC sensors
IR sensors
Voice module
Speaker
Power supply
ATMEGA8 microcontroller
The controlling device of the whole system is a microcontroller.The user needs to give the destination location through voice to voice recognition system which is interfaced to microcontroller
High-performance, Low-power Atmel AVR 8-bit Microcontroller
ULTRASONIC SENSORS
Ultrasonic sensor senses the obstacles in its path by continuosly transmitting the ultrasonic waves
Working frequency : 40HZ
Output Signal : 0-5V (Output high when obstacle in range
Input trigger signal : 10us TTL impulse
Echo signal : output TTL PWL signal
IR SENSORS
The basic concept of IR(infrared) obstacle detection is to transmit the IR signal(radiation) in a direction and a signal is received at the IR receiver when the IR radiation bounces back from a surface of the object.
Sensor Module for human body detection. Incorporating a Fresnellens and motion detection circuit.
High sensitivity and low noise
VOICE MODULE
Which pronounces the directions he need to move to reach his destination here instead of the alerting through alaram the user can himself using voice recognition system
which is capable of detecting obstacles in its path and controller alerts the user through voice circuit in case of any obstacles which helps the user to avoid obstacles
CONCLUSION
The proposed navigation aid has been developed in order to enhance the independent mobility of blind individuals.