implementation of hand gesture mechanism to operate a

7/27/2019 Implementation of Hand Gesture Mechanism to Operate A

1/25


2/25

GROUP MEMBERS1.Debi Prasad Sahoo - 1021206003

2.Sanjay ku mandal - 0901206428

3.Jigyanshu Mani - 09012063444.Om prakash Tiwari - 0901206339

5.Suman ku Dubey - 09001206338


3/25

ABSTRACTThe proposed technique is intended to facilitate the user

to access the Land Rover through Hand Gesture. It provides the

advantages of robust control, wireless control, system reset and

status display in LED. The control of robot involves three distinct

phases: reception, processing and action .generally, the receptor is

the accelerometer sensor receives the transmitted signal, processingis done by the on-board microcontroller according to tilt and

motion of the accelerometer or processor, and the task (action) is

performed using motors or with some other actuators.


4/25

contents

TRANSMITTER RECEIVER

CIRCUIT DIAGRAM OF

TRANSMITTER POWER SUPPLY

AT MEGA 16MICROCONTROLLER

ACCELEROMETER 16*2 LCD

ENCODER

TRANSMITTER(Tx)

CIRCUIT DIAGRAM OF

RECEIVER POWER SUPPLY

RECIEVER(Rx)

DECODER

MOTOR DRIVER


5/25

ckt diagram ofTransmitter


6/25

POWER SUPPLY SECTION

Transformer - steps down high voltage AC mains to low voltage AC.Rectifier - converts AC to DC, but the DC output is varying.

Smoothing - smoothes the DC from varying greatly to a small ripple.

Regulator - eliminates ripple by setting DC output to a fixed voltage.


7/25

TOTAL CIRCUIT DIAGRAM


8/25

ATMEGA16(MICRO CONTROLLER)


9/25

Features

High-performance, Low-power AVR 8-bitMicrocontroller

Advanced RISC Architecture

Power Consumption @ 1 MHz, 3V, and 25 C forATmega16L

Active: 1.1 mA

Idle Mode: 0.35 mA

Power-down Mode: < 1 A

Four PWM Channels

8-channel, 10-bit ADC


10/25

3-axis Accelerometer Header

Pin Description

X X-axis Output

Y Y-axis Output

Z Z-axis Output

ST Self-Test

VCC +5V

GND GND


11/25

Introduction

The 3-axis Accelerometer measures bothstatic and dynamic acceleration of the body to which itis attached. In static acceleration it can measure the tilt,vibration and etc while in dynamic acceleration, it canmeasure the real time acceleration of motion of astructure to which it is attached. It gives 3 coordinatevalues x, y, z as its output.

Features Low cost with high quality.

Easy to get used to board with the best silk layer.

3-axis sensor(X, Y & Z-Axis). Small, Compact and Low Power.

In-built 3.3V supply.

Measures up to 3g.

1X6 Header for external connection.


12/25

16x2 Alphanumeric LCD


13/25

Introduction The display used here is 16x2 LCD (Liquid

Crystal Display); this means 16 characters per line by 2lines. A very popular standard exists which allows us to

communicate with the vast majority of LCDsregardless of their manufacturer. The standard isreferred to as HD44780U, which refers to thecontroller chip which receives data from an externalsource (in this case, the Atmega16) and communicatesdirectly with the LCD. The 44780 standard requires 3control lines as well as either 4 or 8 I/O lines for thedata bus. Here we are using 8-bit mode of LCD, i.e.,using 8-bit data bus.


14/25

HT12A/HT12E 212Series of

EncodersFeatures Operating voltage- 2.4V~5V for the HT12A, 2.4V~12V for the HT12E

Low power and high noise immunity CMOS technology

Low standby current: 0.1mA (typ.) at VDD=5V

HT12A with a 38kHz carrier for infrared transmission medium

Built-in oscillator needs only 5% resistor

Data code has positive polarity

Minimal external components

HT12A/E: 18-pin DIP/20-pin SOP package


15/25

Applications Burglar alarm system

Smoke and fire alarm system

Garage door controllers Car door controllers

Car alarm system

Security system

Cordless telephones

Other remote control systems


16/25

RADIO FREQUENCY TRANSMITTERIntroduction

RF modules are normally dividedinto three groups, RF transmitter module,RF receiver module and RF transceivermodule.

Transmitter module is aelectronic component using a variety ofradio signals to remote control the targetdevice which has a receiver module built-

in. The remote distance can bevery long and you don't need a line-of-sight remote controlling compared toremote controls using infared technology.


17/25

Applications Industrial remote control, telemetry and remote

sensing.

Alarm systems and wireless transmission forvarious types of low-rate digital signal.

Remote control for various types of householdappliances and electronics projects


18/25

Ckt diagram ofReceiver


19/25

RADIO FREQUENCY RECEIVER:-

RF modules are normally divided into threegroups, RF transmitter module, RF receivermodule and RF transceiver module.

There are two types of RF receiver

modules: superheterodyne receiver andsuper regenerative receiver,superheterodyne has performanceadvantageover super-regenerative ones,

but also is more complicated and price is alittle higher.

The detailed explanation between thetwo types of receivers can be found here.


20/25

DECODER(HT12D):-

FeaturesOperating voltage: 2.4V~12VLow power and high noise immunity CMOS technologyLow standby currentCapable of decoding 12 bits of information

Binary address settingReceived codes are checked 3 times

Address/Data number combination: 8 address bits and 4 data bitsBuilt-in oscillator needs only 5% resistorValid transmission indicator

Easy interface with an RF or an infrared transmission mediumMinimal external componentsSecure and robust protocolIdeal for remote control and security applicationsCompatible with the HT12E encoder IC

18-pin DIP


21/25

Applications

Burglar alarm system

Smoke and fire alarm system

Garage door controllers

Car door controllers Car alarm system

Security system

Cordless telephones


22/25

MOTOR DRIVER(L293D):-


23/25

Introduction

The DC Motor Driver can be used to drive two DCmotors or one Stepper motor in many Robotics and

Embedded Systems application.

Features

Low cost with high quality.

Easy to get used to board with the best silk layer.

Two DC motor can be drived.

Both 5V and PWM mode. Option to drive DC motor at any voltage.

2X5 header for DC Motor Driver input connection.

1X4 Header for motor connection.

1X3 Header for motor voltage and PWM input.


24/25

CONCLUSION Now this project use in many automation industries

for lifting heavy materials from one place to anotherplace .

By the use of the concept of accelerometer sensors theabove project is made and implemented in presentscenario.

.


25/25

ANY QUERIES??

25

implementation of hand gesture mechanism to operate a

Documents