Development and Implementation of Voice-Controlled 3D Movement of Robotic Arm Based on Embedded System

In this paper, we propose a method for a robotic arm based on human–machine interface, which can assist physically disabled people to perform activities of their day-to-day life. The interface can be implemented in several ways, viz. by using voice command or hand gesture or through electrooculography. In the propose system, human voice command is used to control the prototype devices. An HM2007 IC is used for the voice command processing and recognition. The analog input voice command given by the user is converted to the digital output signal by the speech recognition IC. The microcontroller further processes these digital outputs for motion and directional control of the robotic arm. The paper includes the results obtained by testing the system for both speaker dependent and speaker independent cases, respectively, under noise-free and noisy environment.