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Advance Voice Control Pick and Drop Robot 2015

Level-3 Asia pacific Institute of information technology

Project Title:

“Advance Voice Control Pick and Drop Robot”

Aim:

The aim of this project is to make an advance voice control pick and drop robot and to control a

robot with voice or PC commands.

Objective:

The main objective of developing such system or robot to minimize the labor cost, reduce the risk

of life factor, increase accuracy in industries and reduce the risk of life factor of worker, which

works in mines, caves, tunnels, etc. The project is to control the robot in a desired position,

remotely through user voice commands by attaching a speech-recognition module to the

microcontroller unit and using an RF technology. At the transmitting end using push buttons or

voice commands are sent by RF to the receiver to control the movement of the robot either to move

forward, backward, left, right, pick and drop, etc. At the receiving end two motors are interfaced

to the microcontroller where they are used for the movement of the robot.

Project Description: - This project is designed to develop an advance voice control pick and drop

robot using RF technology for remote operation and remotely through user voice commands by

attaching a speech-recognition module to the microcontroller unit. The proposed system consists

of two blocks, transmitter and receiver block, both use a microcontroller of the 8051 families and

a battery for power source. The RF transmitter can take either switch press or voice commands

which are converted to encoded digital data for the advantage of adequate range (up to 200 meters)

from the robot. A voice-recognition module and a set of push-button switches interface to the

microcontroller for giving the input. The commands are sent from the voice or push-button

switches to the receiver to control the movement of the robot either in forward, backward, left,

right, pick and drop, etc. An RF receiver is connected to the receiver end with the help of a decoder

device. The two motors are interfaced to the microcontroller through a motor-driver IC wherein

they are used to, run or change the directions of the robotic vehicle. The robot is controlled by the

voice or push buttons wherein the commands are sent by the transmitter and, based on these

commands the receiver controls the directions of the robot.

http://www.efxkits.com/ir-controlled-robotic-vehicle



The researcher is not aiming to build a robot which can recognize a lot of words. The researcher

basic idea is to develop some sort of menu driven control of this robot, where the menu is going

to be voice driven. What the researcher is aiming at is to control the robot using following voice

commands.

Robot which can do these basic tasks:

1. Move forward

2. Move back

3. Turn right

4. Turn left

5. Pick

6. Drop

7. Stop (stops doing the current job)

Users of the system:

This system is indispensable in many manufacturing industries. The reason is that the cost per hour

to operate a robot is a fraction of the cost of the human labor needed to perform the same function.

More than this, once programmed, robots repeatedly perform functions with a high accuracy that

surpasses that of the most experienced human operator. Human operators are, however, far more

versatile. Robots require a combination of elements to be effective, sophistication of intelligence,

movement, mobility, navigation, and purpose. Without risking human life or limb, robots can

replace humans in some hazardous duty service. Humans can switch job tasks easily, but robots

can work in all types of polluted environments and also save the time.

User can Pick and drop the goods.

User can control the car or other electrical devices by voice.

User can also use in a wheel chair.

Application of this robot in industrial manipulator.

Welding operation can be done



Assembly operation

Spray painting operations

Transferring load from one place to another

Water jet cutting operation

It can pick and drop a product

Handling of material.

Functionality:

The robot will work such as forward, back, right, left, pick, drop and stop according to voice

commands or PC commands.

Speech recognition

S. No. Input (Speaker speaks) Output (Robot does)

1.

Forward

Moves forward

2.

Backward

Moves back

3.

Right

Turns right

4.

Left

Turns left

5.

Pick

Pick the goods

6.

Drop

Drop the goods

7.

Stop

Stops doing current

task



Main components Used:

Voice module

RF module

Microcontroller

Motor Driver

DC Motors

Block Diagram:

Figure 1: Block diagram of transmitter circuit

Figure 2: Block diagram of receiver circuit



Literature search:

Robot Control Based on Voice Command by researcher Xiaoling Minglu and Hui Li

In this paper, a speech-control robot system has been presented. This speech-control system,

though quite simple, shows the ability to apply speech recognition techniques to the control

application. This advance robot can understand control commands spoken in a natural way, and

execute the corresponding action. The method has proved efficient enough for real-time operation.

Such a robot has potential for application in somewhere voice communication plays a crucial role.

[Minglu X., (2008)]

In this paper, an intelligence arm, robotic with user-friendly human-computer interface (HCI)

based on electromyogram (EMG) signal, and voice proposes. The user’s intention is transferred to

the robot via the (HCI), and then the robot is controlled to the intended direction. Additionally, the

robot can pick and drop any goods. By combining HCI into the autonomous functions, it performs

safe and reliable motions while considering the user’s intention. [Li H., (2008)]



An Intelligent Motion Control of Robot based Voice Recognition by researcher Young-Mok

Koo:

“An Evolutionary Approach to improve the lifetime of the human” This paper is about the

application of speech recognition in the robot control system. The robot vocal commands are

limited words, such as left, right, forward, backward, pick and drop, etc. In this paper, the main

purpose is a simple and effective voice control method applied to a positioning task performed by

a robot and the robot can understand control commands spoken in a natural way, and execute the

corresponding action. [Yang S & Youl Park M., (2014)]

A Voice-Controlled Personal Assistant Robot by researcher V. K. Mital:

In this paper, the researcher has developed a voice-controlled personal assistant robot. The human

voice commands are given to the robotic assistant remotely, by using a PC (Personal Computer).

The robot can perform different movements, turns, start/stop operations and pick/drop an object

from one place to another. The voice commands are processed in real-time, using RF technology.

The speech signal commands converted to text form communicated to the robot. It can be used in

hospitals, homes, industries and Educational institute. [Mishra A & Makula P., (2015)]



Main components cost:

Single User Cost

Serial no.

Components

name

Selection of

component

No. of

components

Total Prices

1.

Microcontroller

AT89s52

1

80

2.

PCB

General

1

40

3.

Transformer

Step down

1

50

4.

Diode

P-type , N-type

4

90

5.

Capacitor

1000mf, 27pf, 10uf

5

50

6.

Resistor

1k, 4700 ohm,10k ,220k

8

20

7.

Led

Red

2

5

8.

Convertor

Analog to digital

1

45

9.

Transistor

PNP and NPN

2

20

10.

Encoder

HT-12E

1

80

11.

Decoder

HT-12D

1

120

12.

RF module

Frequency

1

95



13.

H-bridge

AC to DC

4

460

14.

Motor

DC

2

300

15.

Photo coupler

Pc-817

4

55

16.

Cristal oscillator

Hz

1

20

17.

Voice Module

Signal

1

1500

18.

MAX 232

Converter

1

140

19.

Regulator (7805)

Voltage

1

40

20.

Mic

Voice signal

1

250

21.

Main body design

System

1

350

22.

Component design

1

100

23.

Body

1

300

Total estimation of the cost = Rs. 4210



References:

[1] Bayas, Sagar. 'Smart Robot Based On Voice Recognition For Handicapped'. Slideshare.net.

N.p., 2015. Web. 1 Oct. 2015.

[2] Engineersgarage.com,. 'Voice Controlled Robot Using 8051 Microcontroller: Circuit

Diagram & Code'. N.p., 2015. Web. 1 Oct. 2015.

[3] Engineersgarage.com,. 'Voice Controlled Wheel Chair For Physically Disabled People:

Project With Circuit Diagram And Code'. N.p., 2015. Web. 1 Oct. 2015.

[4] English,. 'Voice Controlled Robotic Vehicle Using Speech Recognition'. N.p., 2015. Web. 1

Oct. 2015.

[5] English,. 'Voice Controlled Robotic Vehicle With Long Distance Speech Recognition'. N.p.,

2015. Web. 1 Oct. 2015.

[6] Generationrobots.com,. 'Controling A Robot Using Voice - Speech Recognition Module For

Robots - GÃ©nÃ©ration Robots'. N.p., 2015. Web. 1 Oct. 2015.

[7] Home.iitk.ac.in,. 'Control Of A Robot By Voice Input'. N.p., 2015. Web. 1 Oct. 2015.

[8] Simpson, Richard C. 'Smart Wheelchairs: A Literature Review'. The Journal of

Rehabilitation Research and Development 42.4 (2005): 423. Web. 1 Oct. 2015.

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