accelerometer based gesture controlled robotic arm

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Information about accelerometer based gesture controlled robotic arm
Education

Published on February 20, 2014

Author: padmakarmangrule

Source: slideshare.net

ADARSH INSTITUTE OF TECHNOLOGY & RESEARCH CENTRE , Vita Seminar on “Accelerometer based control of an industrial robotic arm ” Presented by : 1. Mr. JAMDADE NITIN 2. Mr. NALAWADE KRISHNA 3. Mr. MANGRULE PADMAKAR UNDER THE GUIDANCE OF MR. A. I. NADAF

OBJECTIVES OBJECTIVES A Gesture Controlled robot is a kind of robot which can be controlled 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 an appropriate command to the robot so that it can do whatever we want

CONTENTS INTRODUCTION PROJECT PARTS & MODULES ACCELEROMETER COMPARATOR  ENCODER  RF TRANSMITTER & RECEIVER  DECODER  ARM 7 MOTOR DRIVER

INTRODUCTION A gesture is a form of nonverbal 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 Basic ally Four Modules:ACCELEROMETER COMPARATOR ENCODER RF TRANSMITTER

ACCELEROMETER 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:-Accelerometer

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 Circuit Input(-) output Input(+)

Output Of Comparator

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)

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 Four Modules: RF Receiver Decoder(HT12D) ARM 7 Motor Driver

Basic Circuit Of RF Rx:-

DECODER(HT12D) A decoder is a device which does th ereverse operation of an encoder. Original information can be retrieved. HT12D converts that serial data into parallel. 

Figure:-Decoder(HT12D)

ARM 7 PROCESSOR Arm 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) 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 YOU

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