project synopsis ppt for speech controlled drone., Slides of Robotics

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voice activated surveillance drone

Contents

• Abstract
• Introduction
• Problem Statement
• Features
• Working of Voice Controlled Drone
• Block Diagram For Voice Control System of

UAV

• Interfacing Voice Recognition Module
• Conclusion
• Reference

Introduction

• (^) The drone is becoming prominent UAV (Unmanned Aerial Vehicle) which is lifted and boosted by four identical rotors. A drone uses two identical pairs of motors and propellers to create thrust and give the total lift in which two motors rotate in ACW (anti-clockwise) direction and the other two motors rotate in CW (clockwise) direction.
• (^) This arrangement results in total torque equal to null i.e. the corresponding motors are rotating in opposite direction. The pitch, yaw and roll of the drone is controlled by changing the thrust between all four motors unlike helicopters which uses a single large combined pitch rotor to control a conventional helicopter. But drones are commonly controlled by Radio Controller method.

Problem Statement

• (^) A quadrotor is propelled by four rotors using four motors. With precise spin of these four propellers, directional movements of a quadrotor are attainable - Forward, Backward, Left, Right and Yaw.
• (^) But the control for the propellers speed is not an easy task. It needs control expertise with proper control basics. But computer control leads to improper input typing and remote control needs proper coordination of fingers when it comes to multitasking for UAV.
• (^) Speech control strictly avoids the above problems. It provides a smarter interface for quadrotor control. With the advancement of speech technology

Working of Voice controlled drone

• Drones are commonly controlled by RC method.
• Apart from this conventional method, it can be

controlled by interfacing voice commands and

transmitting using RF module.

• (^) There are two stages in this construction. They are

1. Designing

2. Assembling

The drone vehicle and interfacing drone with speech

recognition module and programming the actuators

speed for each input commands.

Block diagram for Voice control System of UAV

Electronic Speed Controllers The function of the electronic speed controllers is to get the output signal from the flight controller and precisely control the speed of the motor. Battery Lithium Polymer batteries are used in drone. These cells can produce an enormous amount of current, needed for the brushless motors. These batteries are rechargeable, can last longer, have low weight and high voltage capacity compared to other type of batteries. Flight Controller A flight controller is a microcontroller in which suitable sensors and RF module are interfaced in order to control the

RF module The RF module consists of an RF Transmitter and an RF Receiver. The transmitter and receiver (Tx/Rx) pair operates at a frequency range of 434 MHz. An RF transmitter receives serial data and transmits it through Radio Frequency through its antenna. Electronic Components Connection The four motors are controlled by Arduino controller through four ESCs. As two motors should spin in clockwise and other two should spin in anticlockwise direction, the positive and negative wiring from motor to ESC is checked for its direction.

Voice Commands For Drone S.No Voice Commands Actions (^1) Start Motors Motors start spinning, maintaining middle speed (^2) Fly Low Speed of motors decrease and vehicle (^3) Fly High Speed of motors increase and vehicle goes up faster (^4) Go Left Right portion of motors increases speed (^5) Go Right Left portion of motors increases speed (^6) Go Forward Left portion of motors increases speed (^7) Go Backward Left portion of motors increases speed (^8) Turn Left Counter clockwise motors increases speed (^9) Turn Right Turn Right Clockwise motors increases speed (^10) Hover Speed of all motors is uniform and thrust

Conclusion

• (^) The core intention of the project is to control the drone entirely by Human Voice input. The drone model is designed and interfaced with Voice recognition module and programmed for its flight.
• (^) Accuracy of voice commands is achieved by training the words within a calm environment. In case of failure of a command, it can also be controlled alternatively by remote control. The project can be extended by implementing some advanced functionalities like “Return to User” which make the vehicle to return way back to the User. Also GPS module can be embedded within the circuit so that the drone can be controlled from very long distance.

[9] Huang A, S. Tellex, A. Bachrach, T. Kollar, D. Roy, N. Roy, Natural Language Command of an Auton Robots and Systems, October 18-22, 2010, Taipei, Taiwan. Pp. 2663-2669. [10] Hudson, Christopher R., et al. "Simplistic Sonar based SLAM for lowcost Unmanned Aerial Quadrocopter systems." [11] Krajnik, Thomas"AR-drone as a platform for robotic research and education." Research and Education in Robotics-EUROBOT 2011. Springer Berlin Heidelberg, 2011. 172-186. [12] Lim, Hyon "Build your own quadrotor: Open-source projects on unmanned aerial vehicles." Robotics & Automation Magazine, IEEE 19.3 (2012): 33-45. [13] Lopez, Joaquin "Creating wireless coverage maps for mobile robot applications." Proceedings of the Workshop en Agentes Físicos (WAF 2009). 2009. [14] N. Roy, and S. Thrun, Perspectives on standardization in mobile robot programming: The Carnegie Mellon Navigation (CARMEN) Toolkit. In: IEEE International Conference on Robotics and Automation. May 2009, pp. 2878-2883. [15] Pan Wei and ZiJian Yang (2015), ‘Design of drone Frame Based On Finite Element Analysis’, 3rd International Conference on Mechatronics, Robotics and Automation (ICMRA 2015).

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