الفهرس | Only 14 pages are availabe for public view |
Abstract Mobile robots has an important status in real life and industrial applications. In this thesis human–robot interaction as a part of strive researchers is represented. This interaction is not only by communication, but it is an interaction by human‟s emotional state. The current research represents new techniques and an implementation of voice autonomous robot system. It is divided into five stages. The first stage is a pretreatment stage known as Digital Signal Processing (DSP), for recording the orders of speaker‟s voice to build a database and to manipulate orders. The noise cancelation of recorded signal that is applied by filtering techniques is the second stage. The third stage is the Speech Recognition (SR) algorithms which use the enhancement of the Isolated Word Command Technique (IWCT) to achieve more accuracy of the voice signal. Fuzzy Logic Control (FLC) that examines the parameters of voice signal with a Voice Emotional Recognition (VER) had measured with three emotional modes: calm, normal and anger. Controlling the velocity and azimuth angle of the Tricycle Mobile Robot (TMR), considered as the fourth stage, was discussed and examined by three methods. In the final stage, results were collected from previous stages combined for the brain of the Tricycle Mobile Robot (TMR) to drive each motor with specified order. An effort was made to investigate and control the velocity and azimuth of TMR by using the fuzzy logic controller alone, using a fuzzy logic controller along with a PID controller and using the Fuzzy Inference System (FIS) with a lookup table. Each controller is examined with trapezoidal, triangular and Gaussian membership function, and all the obtained results are compared. The results proved that the FLC has the best output response and the control signal at the sinusoidal input. Also, the result showed that minimum error signal occured for FLC with triangular membership function at the unit sinusoidal input. |