“Android based Wireless Load Control and Monitoring”

DAYANANDA SAGAR ACADEMY OF TECHNOLOGY AND MANAGEMENT

Dept. of Information Science & Engineering.

By, Thrishma Reddy.S(1DT11IS044)Bhuvana A.U (1DT11IS009)Mohammed Mujahid Afsar(1DT11IS025)

Under the guidance of

Prof. Supreetha Pai(Assistant Professor)

CONTENTS

• Problem Statement• High level design

i)Modular classification

ii)System architecture

iii)Data flow diagram• Detailed design

i)Use case diagram with scenario

ii)Sequence diagram

iii)Activity diagram• Implementation

i)Modular design

ii)Pseudocode• Gantt chart

PROBLEM STATEMENT

• While people are pursuing ever-growing high quality of their lives today. This leads to more and more facilities and home appliances poured into their buildings. How to control and manage these versatile facilities and appliances in a house?

• Usually conventional wall switches are located in different corners of a house and, thus necessitate the need of manual operations like pressing to turn the loads on or off. It becomes very difficult for the elderly or physically handicapped people to operate them. How to help them?

HIGH LEVEL DESIGN

MODULAR CLASSIFICATION

Fire sensor

GSM module

Notification received on the phone through SMS

SMS converted to speech

• Fire Sensor Module

Intruder sensor

GSM module

Notification received on the phone through SMS

SMS converted to speech

• Intruder Alarm Sensor Module

• Fan Module

Fan

OFF

ON

Android Phone

Lights

OFF

ON

Android Phone

• Lights Module

SYSTEM ARCHITECTURE

(P89V51RD2)

DATA FLOW DIAGRAM

DETAILED DESIGN

Home appliances

system

LPG gas

fan

light intruder

water level

<<include>>

Set valuesON/OFF

Security alert

(USER)

Alert police

Set valuesON/OFF

set valueON/OFF

Fire alert

Alert notification(USER)

Smoke alert

Set valuesON/OFF

<<include>><<include>>

<<include>>

<<exclude>>

<<exclude>>

<<exclude>>

<<exclude>>

<<exclude>>

user

Fire dept

police

USE CASE DIAGRAM WITH SCENARIOS

<<include>>

<<exclude>> <<exclude>>

: Home Owner

:Login :Hardware

1: enter usrname & passwd

5: access

2: send username & passwd

3: authenticate

4: Ack

SEQUENCE DIAGRAM FOR LOGIN

: Home Owner

:Microcontroller :Light

1: select light

2: check status

3: return status

4: display status

6: select options : turn on/off

7: enter value turn on/off

8: set value

9: update

10: ack

11: display result

5: display options

SEQUENCE DIAGRAM FOR CONTROLLING LIGHT

: Home Owner

:Microcontroller :Fan

1: Select Fan

2: Check status

3: Return Status

4: Display Status and menu

5: Select Turn on/off

6: Set Values

7: Update

8: ACK

9: Display result

SEQUENCE DIAGRAM FOR CONTROLLING FAN

: Home Owner

:Sensor :Microcontroller

: Fire Dept/Police Dept

4: Display warning

1.send signal

2: Return Signal

3: Notify Firedept

SEQUENCE DIAGRAM FOR FIRE ALARM/LPG LEAKAGE/INTRUDER

: Home Owner

:Microcontroller :Water level

1: select water level

2: check status

3: return status

4: display status

6: select options : turn on/off

7: enter value turn on/off

8: set value

9: update

10: ack

11: display result

5: display options

SEQUENCE DIAGRAM FOR WATER LEVEL DETECTION

ACTIVITY DIAGRAM

IMPLEMENTATION

MODULAR DESIGN

• Fire sensor moduleI(FFS 05)

The Fire sensor is used to detect fire flames . The module makes use of Fire sensor and comparator to detect fire up to a range of 2 meters. It uses a input voltage of +5VDC.

• Intruder detection module(PIR SENSOR)

The unit output is high whenever human’s motion is detected. In simple terms, it is a motion detector. This sensors measure infrared radiation emanating from objects in the field of view. Apparent motion is detected when an infrared emitting source with one temperature, such as human body, passes in front of source with another temperature, such as wall.

CONTD…

• Fan Module

It is directly connected to the microcontroller, it has only two functions ON/OFF. The user can switch on the fan or switch off the fan using the android app.

• Lights module

It is directly connected to the microcontroller, it has only two functions ON/OFF. The user can switch on the light or switch off the light using the android app.

PSEDOCODE

if (IR_1 == 1))

{

LCD_Message( 0x80, " HUMAN ENTERED " );

GSM_Send_SMS( Mb_Num1,"HUMAN ENTERED");

}

if(Float == 1)

{

LCD_Message( 0x80, "WATER LEVEL HIGH" );

GSM_Send_SMS( Mb_Num1,"WATER LEVEL HIGH");

}

if(Gas sensor == 1)

{

LCD_Message( 0x80, "gas leackage" );

GSM_Send_SMS( Mb_Num1,"gas leackage");

}

if( Bulb== 1)

{

Bulb_Relay== 1

LCD_Message( 0xC0, " BULB IS ON " );

GSM_Send_SMS( Mb_Num1," BULB IS ON ");

}

if(Fire == 1)

{

LCD_Message( 0x80, " fire " );

GSM_Send_SMS( Mb_Num1,"fire");

}

if(Fan== 1)

{

Fan_Relay==1;

LCD_Message( 0xC0, " FAN IS ON " );

GSM_Send_SMS( Mb_Num1, "FAN IS ON" );

}

GANTT CHART

THANK YOU