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OPERATNG AN RC CAR BY VOICE COMMANDS

 

TITLE OPERATNG AN RC CAR BY VOICE COMMANDS
AUTHOR PARICHAT LEECHOR
DEGREE MASTER OF SCIENCE PROGRAMME IN COMPUTER SCIENCE
FACULTY FACULTY OF SCIENCE
ADVISOR CHOMTIP PORNPANOMCHAI
CO-ADVISOR DAMRAS WONGSAWANG
 

ABSTRACT

The objective of this research is to develop a Thai-supported voice-based operating application that can use radio signals to control the movement and directions of a radio–controlled car (RC car). The Hidden Markov Model technique is applied to this application in order to recognize Thai voice commands using the voice recognition process. Devices and tools for the system implementation are widely available in hardware markets. Additionally, all of the software used in developing the system is open source.

The system operates by transmitting a Thai voice command produced by a user to the computer, and then the voice command is converted into a digital signal. Next, the computer recognizes the input voice command and transmits the control signal to the RC car’s remote control. After that, the digital signal is converted into a radio wave. Finally, the RC car performs the movement based on the radio wave command. The experiment was conducted using an RC car with five Thai voice commands consisting of 1) Stop, 2) Forward, 3) Reverse, 4) Turn Left, and 5) Turn Right. The experimental precision was 99.6%, 91.4% and 64.6% in quiet, moderate-noise, and high-noise environment settings, respectively.


KEYWORD RADIO-CONTROLLED CAR (RC CAR) / HUMAN VOICE COMMANDS / VOICE RECOGNITION

 

 

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