Voice Recognition Car

Prepared by:-

Chovatiya Ravi (ravilife4rohit@yahoo.com)Patel NilayChovatiya PrakashChaudhari Prakash

Introduction  

Right

Left

Back

Go

Stop

Car can recognize 5 commands

By giving voice command , you can drive car

Voice recognition car

Meaning of voice recognition

Wireless video transmission

Car works with this video transmission

Wireless communication between PC and Car

Receive and control

Basic Design  

Signal is given to car and car is moved as per control signal

Voice input is given to microphone

Output of microphone given processing-unit processing-unit generates control signal as per voice input

Amplifier

(Band pass

Filter)

Mega32 Input Voice

Car

Block Diagram:-

Steering control PWM Signal

Driving control PWM signal

     1) Software Description

Filter Implementation:-          

2) Hardware details:  -

What is mega32?

Pinout Diagram:-

8-bit microcontroller with 32K Bytes in system programmable Flash

Input signal

Steering control PWM Signal

Driving control PWM signal

Why selecting mega32?

Special Features:-

Many more same features as other basic microcontroller.

Six Sleep Modes: Idle, ADC Noise Reduction, Power save, Power-down, Standby and Extended Standby,

In-System Programming by On-chip Boot Program, True Read-While-Write Operation Optional Boot Code Section with Independent Lock Bits

2K Byte Internal SRAM,

On-chip Analog Comparator,

Inbuilt ADC(Analog to Digital Convertor)

WebcamOn Car

Parallel to serial converter TX

RXPC

Car works with wireless video transmission

Hardware Implementation

UARTTRC

HD 6402

MC74HC4040

TBRL

CLK

CLOCK

2.4576MHz

GND

5V

8 bits Parallel Data In (TBR1 to TBR8)

Dataout

UART data clocking

Max232 Schematic:-

Communicating with PC

Applications:-

Command and control of applinces and equipment

Telephone assistance system,

Data entry,

By putting webcam and GPS device u can Controlling your robot wireless,

Controlling all autonomous Robots,

Controlling Robotic arm ,

Controlling toys using voice,

Voice recognition security system,

Speech –enabled car

Computer with wireless Receiver &With voice signal transmitter

Target

Voice recognising ckt &

Wireless video transmitter

References  

Speech Recognition Algorithm: Tor’s website,

LM358 Datasheet: Dual Operational Amplifier

Atmel Mega32 Data sheet: Mega32 datasheet

Matlab: To generate second order coefficient.

Harris semiconductor: UART HD6402Linx technology technical staff,HP series Transmitter and receiver module data guide:HP-3 Transmitter :HP-3 Receiver

Motorola semiconductor:12-Stage Binary Ripple Counter(MC74HC4040)