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NAGARJUNA COLLEGE OF ENGINEERING AND TECHNOLOGY
Venkatagiri kote, Devanahalli, Bengaluru -
562164 Department of Computer Science
Engineering  

Presentation
on IMPLEMENTATION OF SMART AUDITORIUMS IN
COLLEGES Submitted by Ms. JAYITA DEB USN
1NC13CS042 Ms. SHRUTHI S R USN
1NC13CS091 Mr. SUBHAM CHATTERJEE
USN
1NC13CS096 Mr. VENKATAGIRI Y G USN
1NC13CS107 Under the guidance of Mr.
RAGHAVENDRA B Assistant Professor, Dept. of
CSE NCET, Bengaluru
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ABSTRACT

• The project deals with making a commercial smart
  auditorium which would conserve power and
  energy and time to a greater extent.
• The project is to design and employ power
  saving in general auditorium of colleges and
  educational institutions. To do so we make use of
  various sensors like temperature sensor, smoke
  sensors. Using these sensors we might code a
  threshold value for certain tasks to be
  implemented as and when required. Generally an
  Auditorium consists of number of electrical and
  electronic devices or equipments. To control and
  monitor all these equipments or appliances we
  need a person or controlling system. In this
  project we implement the working of smart power
  controlling and saving in auditoriums by using an
  electronic circuit and sensors in an easy way
  without having human being. And also this will
  reduce power consumption.

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CONTENTS

• Introduction
• Literature Survey
• System requirement
• System Analysis
• System design
• Implementation
• Conclusion Future Enhancement

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COMPONENTS REQUIRED
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INTRODUCTION

• Application of knowledge to the practical aims of
  human life or to changing and manipulate the
  human environment is known as technology.
• Technologies that allow sensors, databases, and
  wireless access to collaboratively sense, adapt,
  and provide for users with in the environment
  smart technology.
• With all these immense success of smart
  technologies, we are introducing our project
  smart auditorium that evolves in reducing power
  consumption and preserves energy.
• The working model of the project would deal with
  implementing various sensors across the
  auditorium so as to control several power
  consuming appliances in an efficient way.

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LITERATURE SURVEY

• EXISTING SYSTEM
• Using Image Processing Technique
• Using Pressure Sensors

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• Disadvantages of Using Image Processing
  Technique
• 1. Camera cost is high .2. Complex edge
  detection algorithm.3. Less accuracy while
  synchronization of the processed image and real
  time image.Disadvantages of using pressure
  sensors
• 1. Depends on crowd intensity2. Area covering
  algorithm is less accurate

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Disadvantages of
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SYSTEM REQUIREMENTS SPECIFICATIONS

• Hardware Requirements
• Arduino UNO Board
• PIR sensor (Passive Infrared sensor)
• Smoke Sensor
• Motor
• Buzzers
• LEDs

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System Requirements cont.

• Software Requirements
• OS Windows 8
• Programming Language C
• Arduino Software 1.8.2

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• FUNCTIONAL REQUIREMENTS
• Sensors should sense the human presence and
  absence.
• Automated controlling capacity.
• User friendly implementation.
• Board should be feasible.
• NON-FUNCTIONAL REQUIREMENTS
• Reliable
• Portable
• Cost Efficient
• Low power consumption

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• Arduino UNO Board
• Arduino is an open-source platform used for
  building electronics projects.
• Arduino consists of both a physical programmable
  circuit board (often referred to as a
  microcontroller) and a piece of software, or IDE
  (Integrated Development Environment) that runs on
  your computer, used to write and upload computer
  code to the physical board.
• The Arduino platform has become quite popular
  with people just starting out with electronics,
  and for good reason.

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ANALYSIS CONTINUES
Figure Arduino UNO Board
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• PIR Sensor
• PIR sensors allow you to sense motion, almost
  always used to detect whether a human has moved
  in or out of the sensors range.
• Everything emits some low level radiation, and
  the hotter something is, the more radiation is
  emitted.
• The sensor in a motion detector is actually split
  in two halves. The reason for that is that we are
  looking to detect motion (change) not average PIR
  levels. The two halves are wired up so that they
  cancel each other out. If one half sees more or
  less PIR radiation than the other, the output
  will swing high or low.

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ANALYSIS CONTINUES
Figure PIR Motion Sensor
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• Smoke Sensor
• A gas detector is a device that detects the
  presence of gases in an area, often as part of
  a safety system.
• This type of equipment is used to detect a gas
  leak or other emissions and can interface with
  a control system so a process can be
  automatically shut down.
• A gas detector can sound an alarm to operators
  in the area where the leak is occurring, giving
  them the opportunity to leave. This type of
  device is important because there are many gases
  that can be harmful to organic life, such as
  humans or animals.
• Gas detectors can be used to detect combustible,
  flammable and toxic gases, and oxygen depletion.

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Figure Smoke Sensors
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SYSTEM ANALYSIS

• PROPOSED SYSTEM
• The proposed system brings out a new way of
  implementing the smart auditorium system by using
  the PIR sensors. The infrared sensors will detect
  any human presence and it activates the code
  processing of the microcontroller to which it is
  attached to and it will pass the appropriate
  control signals to various devices connected to
  the microcontroller using circuit. Further this
  implementation will curb the loss and wastage of
  power and will be cost effective and power saving
  implementation.

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• ADVANTAGES OF PROPOSED SYSTEM
• The most important advantage of this project is
  that it is power conserving, as the entire
  auditorium has been divided into several blocks
  of sittings, at any instant when the deployed
  sensors take a motion parameter i.e. presence of
  human motion (thermal motion) then it will power
  only that part of the auditorium in which the
  motion has been detected. Thus, in this way the
  appliances which are placed in other blocks are
  restricted to be switched ON.
• Another important factor of this project is that
  is cost effective. The sensors deployed are cheap
  and efficient

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SYSTEM DESIGN
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Fig Use Case Daigram
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Figure SYSTEM ARCHITECTURE
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BLOCK DIAGRAM
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CONVERSION OF SOUND ENERGY INTO ELECTRICAL ENERGY
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Sound energy conversion
ELECTRICITY
SPEAKERS
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As per faradays law, generated emf is given by
Generated voltage (emf) velocity of
conductor X magnetic field X

length of conductor
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CIRCUIT DIAGRAM
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IMPLEMENTATION
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• ardOS FETURES
• A compact and configurable kernel.
• Prioritized scheduling for hard real-time tasks.
• Binary and counting semaphores.
• Mutex locks and conditional variables.
• First-in-first out and prioritized message
  queues.

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Exit
PIR SENSOR
PIR SENSOR
PIR SENSOR
PIR SENSOR
Entry
FUNCTIONAL CIRCUIT
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Codes for Implementation
Arduino code for PIR Motion Sensor prototype
//the time we give the sensor to calibrate (10-60
secs according to the datasheet) int
calibrationTime 30          //the time when
the sensor outputs a low impulse long unsigned
int lowIn           //the amount of
milliseconds the sensor has to be low //before
we assume all motion has stopped long unsigned
int pause 5000    boolean lockLow
true boolean takeLowTime    int pirPin 3   
//the digital pin connected to the PIR sensor's
output int ledPin 13    
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  ///////////////////////////// //SETUP void
setup()   Serial.begin(9600)   pinMode(pirPin,
INPUT)   pinMode(ledPin, OUTPUT)   digitalWrite(
pirPin, LOW)     //give the sensor some time to
calibrate   Serial.print("calibrating sensor
")     for(int i 0 i lt calibrationTime
i)       Serial.print(".")       delay(1000)
           Serial.println(" done")     Serial.pr
intln("SENSOR ACTIVE")     delay(50)
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//////////////////////////// //LOOP void
loop()        if(digitalRead(pirPin)
HIGH)        digitalWrite(ledPin, HIGH)   //the
led visualizes the sensors output pin
state        if(lockLow)           //makes sure
we wait for a transition to LOW before any
further output is made          lockLow
false                     Serial.println("---")
         Serial.print("motion detected at
")          Serial.print(millis()/1000)         
 Serial.println(" sec")          delay(50)     
                       takeLowTime
true        
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 if(digitalRead(pirPin) LOW)      
       digitalWrite(ledPin, LOW)  //the led
visualizes the sensors output pin
state          if(takeLowTime)         lowIn
millis()          //save the time of the
transition from high to LOW         takeLowTime
false       //make sure this is only done at the
start of a LOW phase                 //if the
sensor is low for more than the given pause,
       //we assume that no more motion is going
to happen        if(!lockLow millis() - lowIn
gt pause)             //makes sure this block of
code is only executed again after            //a
new motion sequence has been detected            l
ockLow true                       
           Serial.print("motion ended at
")      //output            Serial.print((millis(
) - pause)/1000)            Serial.println("
sec")            delay(50)                    
  
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Arduino LED Blink Code / //Sets Red to
digital pin 8 and Green to digital pin 7
define Red 8 define Green 7 void
setup() //Initializes pin 8 and 7 as
outputs pinMode(Red,OUTPUT)
pinMode(Green,OUTPUT) void loop()
//Blinking digitalWrite(Red,HIGH) //Red on
digitalWrite(Green,LOW) //Green off
delay(500) //Wait half a second
digitalWrite(Red,LOW) //Red off
digitalWrite(Green,HIGH) //Green on
delay(500) //Wait half a second
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CONCLUSION

• The smart auditorium evolves in reducing power
  consumption and preserves energy. This concept is
  not a new one in internationally business hubs
  but it has not been introduced to schools and
  colleges. This project will provide a college
  auditorium with high-tech facilities and the
  comfort level will be improved. We will also
  perform energy conversion that is from sound
  energy to electrical energy by using the
  vibration of speaker that can be used to lighten
  up small electrical appliances.

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FUTURE ENHANCEMENT

• Regarding this project, we can develop a real
  time communicating fire extinguisher system which
  would cut down the paper consumption as well as
  would be more accurate and precise with the fire
  detection techniques. Image processing can be
  done to detect the proper location of the fire
  effected area and moreover a fully digitalized
  and intelligent system can be developed which
  might help not only to detect and douse fire but
  also to guide the victims to a safer area as well
  as to control the fire occurrences of fire
  incidents by monitoring the building as a whole.

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THANK YOU ! ! !