HOME SECURITY SYSTEM Senior Design 1 Fall 2015 [1]

TEAM MEMBERS Daniel McKinnon Team Leader Electrical Engineer Richard Stone Electrical Engineer Sam Scarbrough Electrical Engineer Dr. Pat Donohoe Faculty 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 BatteriesThe battery in each node must provide enough voltage to operate the sensor/switch, microcontroller, and transceiver. Mobile ApplicationThe Android smartphone application must be able to arm, disarm, arm stay, and provide battery life information of each node. Server FunctionThe user must receive a notification within 10 seconds of the alarm being tripped. Node FunctionEach node must be able to communicate with the microprocessor at a distance of 40 feet inside a home.

PRACTICAL CONSTRAINTS CostHome Alarm system’s installation and monthly costs for this package must be less than what the competitors offer. ReliabilityThe 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 ServerMicroprocessor 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

BUZZER CompanyFeaturesPrice Piezo Electronic12VDC, 95dB$2.49 Piezo Electronic12VDC, 120dB$4.61

MICROCONTROLLER ComponentFeaturesPrice Arduino Pro Mini 3.3V 6 analog input ports $9.95 Arduino Fio3.3V USB, Shield Compatible 8 analog input ports $24.95

WIRELESS COMMUNICATION ComponentFeaturesPrice Xbee ShieldCommunicates directly with microprocessor Connects to WiFi network $25 Nordic Transceiver Low power Range: 100m $4

MICROPROCESSOR ComponentsFeaturesPrice Raspberry Pi B+512 MB memory Ethernet port $30 Arduino YunOnboard wifi 20 I/O pins $75

APPLICATION Operating SystemFeaturesPrice iOSSecure, Not open- source Smooth notification system $100/year to join Apple Developer Program + Requires Macbook AndroidFully 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 microcontroller  Achieve communication between web server, application, and microprocessor  Test/debug prototype

TIMELINE AugustSeptemberOctoberNovemberDecember Research and Order Parts Software Development Hardware Assembly Testing Finalize Prototype

Q&A

REFERENCES [1] Home Security photo: CY/VTmtam3psuI/AAAAAAAAACo/RuWqecnxuB0/s1600/home-security.png [2] Peeking burglar photo: [3] Burglar breaking in photo: jpg/images/burglar.jpg?t= [4] Safeguardtheworld. “Security Statistics”, [Online]. Available: [5] Google Cloud Platform photo: