PowerPoint Presentation

Smart Lock SecurityMid-Semester PresentationOctober 3, 2013

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Trey HerringtonElectrical Engineer -Website Design -Software ImplementationSamantha Prine Electrical Engineer -Product Research -Hardware AssemblyJacob Ferguson Electrical Engineer -Product Research -Wireless System DesignGrant Richards Computer Engineer -Software Implementation -Data Path Design

Dr. Raymond Winton(Faculty Advisor)Daniel Sowards( Team Leader ) -Electrical Engineer -Wireless System Des.Team Members

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OutlineIntroductionProblemSolutionConstraintsTechnicalPracticalSystem OverviewApproachProgressTimelineQ&A[1]

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ProblemElectronic locks generally cost between $70 - $400 [2].Normal locks do not have forced entry detection [2].The only locks that allow remote unlock are the more expensive versions [3][4].Other electronic locks do not have the ability for the user to see what phone was used to unlock the system [2].

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SolutionProposed Features:Reasonable pricing at mid-market value, approximately $200Forced entry detection feature notifies the owner upon attemptDoor entry information: Number of entries, Phone used to unlock, etc.

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NameDescriptionWirelessCommunicationThe device must be able to communicate with the user via Short Message Service (SMS), allowing the user to lock/unlock and to notify the user if the door has been locked or unlocked.Power SupplyThe Smart Lock Security system must be powered by a 120VAC source. A backup battery with a current range of 0.75A - 3A is required to power the device in the case of a power outage.Alternative CommunicationThe device must provide an additional method of access and system configuration at the physical location of the device.DisplayThe LCD screen must display the correct information to the user. Some of the required information will be a menu with multiple options and further instructions based on users decisions.Forced Entry DetectionThe device must be able to detect unauthorized entry when the solenoid is in the lock position.Technical ConstraintsDaniel6

Practical ConstraintsTypeNameDescriptionEconomicPriceThe Smart Lock Security device is expected to be $200.00.ManufacturabilitySizeThe device must have seven core components to allow for easy interaction with the device.SustainabilityReliabilityThe system is wired directly into the customers electrical system and is therefore as reliable as the power supply. In case of power outage, the system can be powered from the backup power supply for a 24 hour period.SocialCompatibilityThe Smart Lock Security system must be compatible with most door frames (residential, commercial, and industrial).Health & SafetySafetyThe system will notify the homeowner via SMS if a forced entry is attempted. The user will also be able to secure area with cell phone via SMS.Grant7

System Overview

SensorTransistorCell Phone(SMS)Trey8

Approach :Entry DetectionSelectionMagnetic SwitchAccelerometerCost: $2.98 [6]Positive: Any placement on doorNegative: Only senses movementCost: $2.86 [5]Positive: Senses when door is open as well as when it is shut.Negative: Placement must be where door and doorframe connect

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Approach :MicrocontrollerSelectionPIC24Arduino ADK Cost: $2.63 [7]Input/Output Pins: 21Flash Memory: 128 KB

Cost: $62.99 [8]Input/Output Pins: 54Flash Memory: 256 KB

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Progress: Solenoid Lock- Testing: In progress- Transistor: Ordered power MOSFET (Controls when solenoid locks/unlocks)

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Progress: LCD Screen/KeypadTesting: In progressIntegrating keypad with screenDeveloping a user friendly menuSoon: Integrate other keypad for user to enter pin number/unlock solenoid

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TimelineResearchOrder PartsFinished PrototypeConstruction & TestingHardware DesignDeveloping CodeJacob13

References[1] (2013, September 30). Business Wire [Online] Available: http://www.businesswire.com/news/home/20130604005681/en/CORRECTING%C2%A0and-REPLACING%C2%A0Hampton-Products-Introduces-Revolutionary-Brinks-Home[2] (2013, September 30). Electronic Door Knobs & Handlesets [Online] Available: http://www.lowes.com/Electronic-Door-Knobs---Handlesets/_/N-1z0wpvn/pl?cm_sp=Hardware-_-Door|M1-_-SellingTool|Electronic_Door_Hardware&cm_cr=No+Campaign-_-Web+Activity-_-Door+Hardware+TH+9.20.13-_-SC_Door+Hardware_TopHero_Area-_-10772562_1_Shop_Electronic_Hardware#!&Ns=p_product_price%7C0&page=1[3] (2013, September 30). August [Online] Available: www.august.com[4] (2013, September 30). Goji [Online] Available: www.gojiaccess.com[5] (2013, September 30). Digi-Key Corporation [Online] Available: http://www.digikey.com/product-detail/en/59140-1-S-02-A/HE573-ND/2650435[6] (2013, September 30). Digi-Key Corporation [Online] Available: http://www.digikey.com/product-detail/en/ADXL344ACCZ-RL7/ADXL344ACCZ-RL7CT-ND/3758434[7] (2013, September 30). Microchip [Online] Available: http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en558705#documentation[8] (2013, September 30). Arduino Store Alpha [Online] Available: http://store.arduino.cc/ww/index.php?main_page=product_info&cPath=11&products_id=198[9] (2013, September 30). On the Other Hand [Online] Available: http://jjffeducators.blogspot.com/2011/04/answers-to-open-door.html

Smart Lock SecurityMid-Semester PresentationOctober 3, 2013

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