ECE-290 Final Presentation

8/2/2019 ECE-290 Final Presentation

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S

Wireless Home Security SystemMentor : Mr. S.K.IMTIAZ

PRESENTED BY :-

1. Mayank Mangalam2. Diptojit Malakar3. Soumasis Ghosh4. Sandeep Kumar

5. Sudipta Bhattacharjee

DEPARTMENT OF ELECTRONICS AND COMMUNICATION, TEHNO INDIA


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CONTENTS

S What is Wireless Home Security ?

S History

S Need of Wireless security

S Use of wireless security system.

S Products & Their Specifications

S Working Conditions

S Block Diagram

S Circuit diagram Descriptions

S Networking Descriptions

S Advantage & disadvantages

S Flow chart by Using wireless home security inINDIA.

S Future uses for wireless home security system

S Discussions

S References


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WHAT IS WIRELESS HOME SECURITY SYSTEM ?

o These are electronic devices that are used for

security purposes either in home or at workplaceo Contains a battery operated control panel and

uses existing radio frequency wave to activate thebuilt in alarm control

o

There are no complicated and confusing wireconnections

o Easier and cheaper installation and more reliableas it can not be detactivated by mere cutting offew wires


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HISTORY

o History dates back to mid 1800s when onJune 21, 1853, Augustus R.Pope ofSomervillew granted a patent on Electro-magnetic Alarms

o Marie Brown, an African-American inventordrew up the first basic but effective homesecurity system that utilized closed circuittelevision which was patented on December2, 1969

o It was a simple CCTV camera which wasbeing used to record the foot steps at thedoor and regulate the entry


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NEED & IMPORTANCE

o The prime reason for choosing a home security system is obviously tosafeguard against theft burglary and other crimes

o When connected to a PC or cell phone it gives message when there is asecurity breach, gas leakage or fire

o It gives a remote access and 24x7 keep-a-watch facility, so while youare away from your home, you can lock/unlock your and keep a track ofany movement

o Provide the illusion that someone is home, boosts the credibility when itcomes to selling your house and moreover it very easy to install andcompact


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HOW USED ??

o Wireless technology also allows a homeowner to control his wireless

home security system by way of a remote

o Using the advent of mobile devices and applications, a home securitytechnique could be activated by a telephone app controlling a system.

o even though a homeowner is miles away, turning on lights, air-conditioningand appliances if necessary, and checking the status of a program.


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PRODUCT USES IN WIRELESS HOMESECURITY SYSTEM


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WORKING REQUIREMENTS

S Must be a mesh network

S Must use the CC1010

S Battery life of at least 1 month

S Nodes should be small .

S Neighboring networks should not notably interfere with each other

S The recording time must be at least 30 seconds.


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Uses of wireless home security systema Survey

8%

18%

25%

40%20092010

20112012


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BLOCK DIAGRAM


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THE CC1010

o The brains of our system.

o It is a combination of a transceiver and a microcontroller.

o It has 32k of EEPROM and 2.125kB of RAM.

o It has built in encryption.

o It has a 24MHz system clock and a 32kHz real-time clock


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THE CC1010

o It works best at 315, 433, 868 and 915 MHz but can work over the range of 300 MHz through 1GHz.

o Our model is fixed at 433MHz.

o It has a random bit generator.

o Its costs about $12, retail.

o It has an ADC

o It has a big antenna


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MAIN PARTS

S The LCD DisplayS Display Menu

S Operation StatusS Battery Status

S The KeypadS Navigation of menuS Input of phone number to be dialedS Input of optional security code


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MAIN PARTS cont.

S The MicrophoneS User input of outgoing alarm message

S The SpeakerS user preview of outgoing alarm message

S The PotentiometerS adjustment of volume of user message

S The SensorsS Detection of any intrusion

S Options: IR or Ultrasonic


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MAIN PARTS cont.

S Passive Infrared sensors:S Do not emit any signals but just respond of the energy flow of the

environmentS Sense only rapid changes in heat levels.S Peak detector and comparator determine whether a signal is

strong enough to set off the alarm.S The alternative would be the ultrasonic sensors, however they use

too much power for our application


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MAIN PARTS cont.

S The Audio CodecS -law compression

S The Flash MemoryS stores a users message.

S The Analog MultiplexerS switches the output of the audio codec between the speaker and the

phone line.

S The Phone Control CircuitryS takes the phone on and off the hook.


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NETWORKING

S Star versus mesh networks.

S Repeaters

S The TinyOS

S The Zigbee Standard

S Wifi, Bluetooth, and other wireless standards.S Echo detection

S Jamming Detection


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ADVANTAGES OF WIRELESS HOMESECURITY SYSTEM

S Cheap installation fee

S No monthly fee

S Ideal for apartments

S Easy to install and move around

S No complicated or confusing wireconnections


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DISADVANTAGES OF WIRELESS HOMESECURITY SYSTEM

o In a large home or apartment, the signal strength may not be strong

enough to reach every area

o The components for wireless systems are typically more expensive

o Bad weather can interfere with the signal of a wireless alarm system.


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APPLICATIONS OF WIRELESS HOMESECURITY SYSTEM


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DISCUSSIONS

S System Answers the Phone AutomaticallyS Automated Voice Answering System

S Motion Detectors for House Exterior

S Inform Homeowner and Authorities

S Secondary Alarms (i.e. dog barking)


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REFERENCES

S Electronics for you.

S Wikipedia.

S Yahoo

S Wireless Communication Theory.


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THANK YOU

Any Query ?

Documents

ECE-290 Final Presentation