HOME SECURITY SYSTEM Senior Design 1 Fall 2015 [1]

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

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

HOME SECURITY SYSTEM Senior Design 1 Fall 2015 [1]

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