Bachelor's Major Project

I developed a speech controlled robotic car during my Bachelor's. My project was evaluated to be the best project in our entire batch of 120 students.

Transcript

1. Viky A Voice-Activated Radio-Controlled Car Project submitted by: Guided by: Mona Garg (07CE48) Ms. Jyoti Gajrani Mahak Gupta(07CE44) Assistant Professor Pramod Acharya Jharna Kewalramani (07CE37)
2. INTRODUCTION — Viky is a robotic car which works on radio frequency transmission. — It gives the driver the ability to control the car by voice commands. This is how our robot looks
3. Voice Commands Viky works on the following commands — Forward — Reverse — Left — Back Left — Back Right — Stop BMW voice command 2009 010
4. HOW VIKY WORKS
5. IMPLEMENTATION This project involves two parts: 1. The first is the interfacing of the remote-controlled car to the personal computer. 2. The second one is the analysis and recognition of human voice.
6. IMPLEMENTATION User (gives voice command) Microphone Processor Encoder Transmitter Receiver Decoder Viky (robotic car under control) Wireless medium
7. ABOUT SPEECH RECOGNITION Speech recognition is "the technology by which sounds, words or phrases spoken by humans are converted into electrical signals, and these signals are transformed into coding patterns to which meaning has been assigned".
8. SPEECH RECOGNITION (contd.) A voice-recognition system may be Speaker-dependent Speaker-independent A speaker-dependent system must be trained with the user’s voice input. It uses the system of template matching. Whereas, a speaker-independent system is based on feature analysis. No training is required.
9. Components of a Speech Recognition Engine
10. TOOLS USED — Microsoft Visual Basic 6 — Microsoft Speech API — Proteus — ExpressPCB — Keil — C programming language
11. HARDWARE COMPONENTS
12. Transmitter section — Parallel port — Encoder – HT12E — Transmitter of radio frequency 434 MHz
13. Receiver section — Receiver of radio frequency 434 MHz — Decoder – HT12D — Microcontroller — L293D — DC motors
14. USES — The car can be used in a surveillance system, in order to keep track over the site and detect threats from enemies. — The system can be grown to a higher complex level i.e. the car can be made to understand more complex tasks. — Viky would be most helpful to physically- challenged people to perform their daily work.