Transcript VOICE OPERATED WHEEL CHAIR - Voice Controlled Wheelchair

VOICE OPERATED
WHEEL CHAIR
www.techtriks.wordpress.com
Group Members:
Nisha M S
ECU032/48
Sapna Vasudevan
ECU032/32
Tintu Mary Skariah
ECU032/40
Senthil Kumar
ECU032/34
Priyanka Susan George ECU032/29
Project website: www.techtriks.wordpress.com
Project Guide:
Mr. Rajesh M V
Sr. Lecturer
Dept. of Electronics
Project Co- ordinator: Mrs. Jibi John
Sr. Lecturer
Dept. of Electronics
Model Engg. College, Ernakulam
AIM:

To control the movement of a manual
wheelchair by means of human voice for
paralyzed patients.
BLOCK DIAGRAM
MIC
VOICE
RECOGNITION
IC
RESET
MICROCONTR
OLLER
DRIVER
CIRCUIT
RIGHT
MOTOR
BATTERY
SPEED &DIRECTION
CONTROL
DRIVER
CIRCUIT
LEFT
MOTOR
BATTERY
CHARGER
SPECIFICATIONS
1.MICROCONTROLLER: PIC16F877
2.VOICE RECOGNITION IC (options)
a)HM2007
b) ISD 2500
c) MSM6679
3. MOTOR DRIVER CIRCUIT (options)
a) H-BRIDGE CIRCUIT USING MOSFET
b) H-BRIDGE IC: LMD18245,LMD18200
4.MOTORS(DC): (options)
a) GEAR DRIVEN
b) CHAIN DRIVEN
c) HUB MOTOR
5.BATTERY
6.BATTERY CHARGER CIRUIT
VOICE RECOGNITION IC
•ACCEPTS THE VOICE INPUT SIGNAL
•SPEED AND DIRECTION RECORDED
MICRO CONTROLLER
• PROCESSES DATA
• PROVIDES CONTROL VOLTAGE TO MOTORS
DC MOTORS
•DRIVES THE WHEELS OF THE CHAIR IN
NECESSARY MODES
VOICE RECOGNITION IC
It’s a single chip CMOS voice recognition
module with on-chip ADC, Voice analysis,
Recognition process and system control
functions.
 A 10-40 isolated word voice recognition
system, can be interfaced with external
memory, key board, microphone etc.
 Speaker
dependant
and
speaker
independent modules available

MICRO CONTROLLER:PIC16F877












High performance RISC CPU
Only 35 single word instructions to learn
All single cycle instructions except for program
branches which are two cycle
Operating speed: DC - 20 MHz clock input
DC - 200 ns instruction cycle
Up to 8K x 14 words of FLASH Program Memory,
Up to 368 x 8 bytes of Data Memory (RAM)
Up to 256 x 8 bytes of EEPROM Data Memory
Up to 8K x 14 words of FLASH Program Memory,
Up to 368 x 8 bytes of Data Memory (RAM)
Up to 256 x 8 bytes of EEPROM Data Memory
MOTOR DRIVER
H bridge circuit used for controlling the DC
motors.
 CMOS/IGBT H-bridge modules available
with different current and voltage
specifications.

THANK YOU