accelerometer based gesture controlled robotic arm

ADARSH INSTITUTE OF TECHNOLOGY ADARSH INSTITUTE OF TECHNOLOGY & RESEARCH CENTRE , Vita& RESEARCH CENTRE , Vita

Seminar on

“Accelerometer based control of an industrial robotic arm ”

Presented by :1. Mr. JAMDADE NITIN 2. Mr. NALAWADE KRISHNA3. Mr. MANGRULE PADMAKAR

UNDER THE GUIDANCE OF

MR. A. I. NADAF

OBJECTIVESOBJECTIVESA Gesture Controlled robot is a kind of robot which can

be controlled by your hand gestures not by old buttons

A Gesture Controlled robot is a kind of robot which can becontrolled by your hand gestures not by old buttons. You just need to wear a small transmitting device in your hand which included an Accelerometer. This will transmit anappropriate command to the robot so that it can do whatever we want.

A Gesture Controlled robot is a kind of robot which can becontrolled by your hand gestures not by old buttons. You just need to wear a small transmitting device in your hand which included an Accelerometer. This will transmit anappropriate command to the robot so that it can do whatever we want.

A Gesture Controlled robot is a kind of robot which can becontrolled by your hand gestures not by old buttons. You just need to wear a small transmitting device in your hand which included an Accelerometer. This will transmit anappropriate command to the robot so that it can do whatever we want.

You just need to wear a small transmitting device in your hand which included an Accelerometer. This will transmit anappropriate command to the robot so that it can do whatever we want

CONTENTSCONTENTSINTRODUCTION

ACCELEROMETER

PROJECT PARTS & MODULES

COMPARATOR 

ENCODER 

RF TRANSMITTER & RECEIVER 

DECODER 

ARM 7

MOTOR DRIVER

INTRODUCTIONINTRODUCTIONA gesture is a form of non-verbal communication.

A robot is a mechanical device that can perform tasksautomatically.

  This project contains two parts mainly:-

Gesture Device

Robot

GESTURE DEVICE

Gesture Device Contains Gesture Device Contains Basically Four Modules:-Basically Four Modules:-

ACCELEROMETERCOMPARATORENCODERRF TRANSMITTER

ACCELEROMETERACCELEROMETER

Accelerometers are available that can measure acceleration in one,two, or three orthogonal axes.

The basic principle of operation behind the accelerometer is the displacement of a small proof mass etched into the silicon surface of the integrated circuit and suspended by small beams.

Figure:-AccelerometerFigure:-Accelerometer

COMPARATOR(LM324)COMPARATOR(LM324)An electronic circuit for comparing two electrical signals.

For the purpose to change the analog voltage into digital we use comparator which compare that analog voltage to a reference voltage and give a particular high or low voltage.

Basic Comparator CircuitBasic Comparator Circuit

Input(-)

output

Input(+)

Output Of ComparatorOutput Of Comparator

ENCODER(HT12E)ENCODER(HT12E)An encoder is a device,   that converts information from one format to another.

Here we are using encoder for converting parallel data into serial data.

The HT12E is an 4bit encoder which encode the input data applied on it .It is mainly used in interfacing RF and infrared circuits.

Figure:-Encoder(HT12E)Figure:-Encoder(HT12E)

RF Transmitter:-RF Transmitter:- The word RF stands for “Radio Frequency”.

The radio frequency has ability to cross obstacles plus it provides good coverage of 30 meters.

The corresponding frequency range varies between 30 kHz & 300 GHz.

In this RF system, the digital data is represented as variations in the amplitude of carrier wave. This kind of modulation is known as Amplitude Shift Keying (ASK)

Robot Contains Basically Robot Contains Basically Four Modules:-Four Modules:-  RF ReceiverDecoder(HT12D)ARM 7Motor Driver

Basic Circuit Of RF Rx:-Basic Circuit Of RF Rx:-

DECODER(HT12D)DECODER(HT12D)

A decoder is a device which does thereverse operation of an encoder.

Original information can be retrieved.

HT12D converts that serial data into parallel. 

Figure:-Decoder(HT12D)Figure:-Decoder(HT12D)

ARM 7 PROCESSORARM 7 PROCESSORArm processor is a high

performance ,low power device used widely for wireless embedded systems.

The ARM processor is based on a 16-bit/ 32-bit.

ACTUATOR (L293D)ACTUATOR (L293D)

It is a motor driver.

The Actuator's are those devices which actually gives themovement or to do a task like motor's.

To get interface between motor and ARM 7 . We use L293D motor driver IC in our circuit

THANK THANK YOU YOU