1. DIRECTION CONTROLLED WHEEL CHAIR FOR PHYSICALLYDIRECTION CONTROLLED WHEEL CHAIR FOR PHYSICALLY
DISABLED BASED ON VOICE AND RF MODULEDISABLED BASED ON VOICE AND RF MODULE
PROJECT SUPERVISOR
Mr.S.Sundar
(Assistant Professor)
PRESENTED BY
J.JEGADEESH(121EE505)
S.JAGADEESH(111EE133)
V.SURENDAR(121EE524)
2. Project Phase -2
ABSTRACT
This Project describes an intelligent motorized
wheel chair for physically disabled person
using voice control and by RF module. It
enables a disabled person to move around
independently using a voice recognition
application which is interfaced with motors
through microcontroller.
3. Project Phase -2
INTRODUCTION
This work includes the wheelchair that can be
controlled by using voice and switch and it
monitors the body temperature of the disabled
person.
4. Project Phase -2
PROBLEM IDENTIFICATION
The present world the medical field gives very
much importance in taking care of the patients, and
the patient/ handicapped one are like to live
individually without the help of any others .so, this
proposed product will be very effective for them.
5. Project Phase -2
OBJECTIVE
To design a working model that could help the
physically disabled persons and to make a system
that monitors the health condition of patient.
6. Project Phase -2
BLOCK DIAGRAM OF PROPOSED WORK
MICROPHONE
VOICE
RECOGNITION
KIT
RF MODULE
PIC
CONTROLLER
IR OBSTACLE
SENSOR
POWER
SUPPLY
RELAY 1
RELAY 2
TEMP
SENSOR
MOTOR 1
MOTOR 2
LCD
DISPALY
7. DESIGN AND DEVELOPMENT
The wheel chair is controlled by voice recognition
module and the vehicle is also controlled from a
short distance through RF module.
Project Phase -2
13. MICROPHONE
The human ear has an auditory range from 10 to
15,000 Hz. Microphones are transducers which
detect sound signals and produce an electrical
signal.
Microphone takes the analog voice commands and
sends it to voice recognition chip HM 2007.
Project Phase -2
14. FEATURES
The HM2007 is a CMOS voice recognition LSI
circuit. The chip contains voice analysis,
regulation, and system control functions. The main
features are speech recognition circuit, maximum
40 word recognition, microphone support, response
time is less than 300 milliseconds.
Project Phase -2
15. User programmable, Up to 20 word vocabulary of
duration two second,non-volatile memory back up
with 3V battery onboard, which keep the speech
recognition data in memory even after power off.
Project Phase -2
28. Project Phase -2
CONCLUSION
The direction of the wheelchair can be selected
using the specified voice commands or switch.
This project has many advantages like safety,
comfort, energy saving, etc. Thus a trained voice is
only needed to ride the wheelchair.
29. FURTHER DEVELOPMENT
Further the project can be developed by using a
heart beat analyzer sensor to sense the heart beat of
the patient. When heart beat is crossing the
threshold value SMS is sent to the concern
person/doctor via GSM. The short range
controlling of wheel chair is also possible via
zigbee. We can implement our project on PCB and
output can be obtained.
Project Phase -2
30. Project Phase -2
REFERENCES
[1]. A. AnandKumar “BasicFundamentals of
Digital Circuits” Second Ed. PHI Learning.
[2]. Neamen“Electronic Circuits – Analysis &
Design” McGraw Hill.
[3]. Millman J. &Taub H., “Pulse, Digital &
Switching Waveforms” Tata McGraw Hill
[4]. Simon Haykin, “Communication
Systems”Wiley India, New Delhi, 4Ed. 2008