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HOME SECURITY SYSTEM
Senior Design 1Fall 2015
[1]
TEAM MEMBERS
Daniel McKinnonTeam LeaderElectrical Engineer
Richard StoneElectrical Engineer
Sam ScarbroughElectrical Engineer
Dr. Pat DonohoeFaculty Advisor
OVERVIEW
Problem
Solution
Constraints Technical Practical
System Overview
Approach
Timeline
Progress
Q&A
[2]
PROBLEM
The issue with alarm companies of
today is that they overcharge for the
service they are offering.
In the United States nearly 2 million
households are broken into each year [4].
In the United States, only 17% of homes
have a home security system [4].
[3]
SOLUTION
The Home Alarm System is going to change the face of the market by offering an easy, self-install alarm system that offers the same great protection as other companies without the overpriced rates.
TECHNICAL CONSTRAINTS
Communication Systems
The mobile must be able to communicate with at least 4 nodes.
Node Batteries The battery in each node must provide enough voltage to operate the sensor/switch, microcontroller, and transceiver.
Mobile Application The Android smartphone application must be able to arm, disarm, arm stay, and provide battery life information of each node.
Server Function The user must receive a notification within 10 seconds of the alarm being tripped.
Node Function Each node must be able to communicate with the microprocessor at a distance of 40 feet inside a home.
PRACTICAL CONSTRAINTSCost Home Alarm system’s installation and monthly costs
for this package must be less than what the competitors offer.
Reliability The system must be completely functional in optimal conditions.
COST
ADT and other big alarm companies offer similar packages for $36.99 a month with a +$99 installation fee [1]
The Home Alarm System has NO monthly payments!
RELIABILITY
Home owner must provide:
Accessible wifi
110 VAC
SYSTEM OVERVIEW
Android Application Web Server
Microprocessor
Node
APPROACH
PIR SENSOR
Runs on 5-16V
Motion Detection Range: 20 ft. at 120 degree cone
Price: $9.95 from Adafruit
MAGNETIC SWITCH
Actuation Distance : 15-25mm
Operational Voltage: 2.4V or two AA batteries
Price: $3.66 from Lantee Limited
BUZZERCompany Features Price
Piezo Electronic 12VDC, 95dB $2.49
Piezo Electronic 12VDC, 120dB $4.61
MICROCONTROLLER
Component
Features Price
Arduino Pro Mini
• 3.3V• 6 analog
input ports
$9.95
Arduino Fio • 3.3V • USB, Shield
Compatible• 8 analog
input ports
$24.95
WIRELESS COMMUNICATION
Component Features Price
Xbee Shield • Communicates directly with microprocessor
• Connects to WiFi network
$25
NordicTransceiver
• Low power• Range: 100m
$4
MICROPROCESSOR
Components Features Price
Raspberry Pi B+ • 512 MB memory
• Ethernet port
$30
Arduino Yun • Onboard wifi• 20 I/O pins
$75
APPLICATION
Operating System Features Price
iOS • Secure, Not open-source
• Smooth notification system
$100/year to join Apple Developer Program + Requires Macbook
Android • Fully customizable• Open-source• Connect to any
Windows laptop
Free
WEB SERVER
Host: Google Cloud Platform Features: Can run applications built in multiple languages such as Java, Python, or PHP. Automatically scales with amount of traffic the app receives. Price: Free
[5]
PHONE APPLICATION PROGRESS To do: Add communication functionality between Web server and smartphone Receive push notifications when sensor is tripped
App can do the following things remotely: Arm/Disarm the system Warn the user of
low battery on a sensor or switch.
PROGRESS
To do:Connect sensors and switches to microcontrollerAchieve communication between web server, application, and microprocessor
Test/debug prototype
TIMELINE
August
September
October November
December
Research and Order Parts
Software Development
Hardware Assembly
Testing
Finalize Prototype
Q&A
REFERENCES
[1] Home Security photo: http://4.bp.blogspot.com/-ivOa6HtY-CY/VTmtam3psuI/AAAAAAAAACo/RuWqecnxuB0/s1600/home-security.png
[2] Peeking burglar photo: http://www.kohlhaseins.com/files/2014/05/Fotolia_6814585_Subscription_XL.jpg
[3] Burglar breaking in photo: http://cdn2.hubspot.net/hub/137046/file-17671441-jpg/images/burglar.jpg?t=1443768043333
[4] Safeguardtheworld. “Security Statistics”, [Online]. Available: http://www.safeguardtheworld.com/statistics.html
[5] Google Cloud Platform photo: https://cloud.google.com/_static/images/new-gcp-logo.png
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