Operation of a radio-controlled car by voice commands

The objective of this research is to operate a radio-controlled car (RC car) by using Thai voice commands. The research was conducted by sending a user's voice commands to a computer machine, and then the computer converted the voice commands into digital signal. After that, the digital signal was converted into a radio wave commands. Finally, an RC car operated based on the radio wave commands. The experiment was conducted on the RC car with five Thai voice commands, which were: 1) Stop, 2) Forward, 3) Backward, 4) Turn Left, and 5) Turn Right. The experimental precisions are 98.2%, 93.0% and 44.2% in a quiet room, an office room and a noisy room, respectively.

I. Introduction

In the world that technologies come to fulfill our life, vehicles are one of the great innovations that humans have been inventing. We use them to help us transport humans, goods, and resources from one place to another place in a very short time. It is incredible that vehicles have become one of the important factors in our lives. According to that, vehicle manufacturing has been growing up rapidly. In each vehicle company, there is a competition to try to fulfill the needs of its customers and to win and get the biggest market share. The vehicle technicians use their techniques and skills to meet the needs of their customers but it is very hard to satisfy them since the needs of human have no limit.