P07007: Adapted Home Entry Sponsor: National Science Foundation Wenbo Chen Project Manager, EE Tanvir Rasel EE Meklet Kidane EE Faculty Mentors: Dr. Elizabeth DeBartolo Dr. Daniel Phillips

The Adapted home entry system is designed to help people with disabilities to easily gain access to their home without assistance. One house has two residents who can not manually open the front door because of their disabilities. Last year’s team developed a unit that allows them to operate the front door using a remote control. The hardware for their design is functional, but the control system does not function properly and must be redesigned P07007: Project Background

Project goal: To design and build a robust control system to run the existing hardware. Market: Residences with individuals who have mental and physical disabilities. Customer: Arc of Monroe County Michelle Antonelli (House Manager) P07007: Project Description

Open and close door manually as well as with a remote. Manual usage is given higher priority Minimum maintenance/ repair. <= once every 6 months Prevent personal injury from door movement. speed of door <= 19.2 deg/sec. force needed to stop door <= 15 lbs. use of motion detectors Presentable overall appearance all components and wiring enclosed in casing except the sensors. Design within budget <= $1200 P07007: High Level Customer Needs

P07007: Design Concept Door Overview

P07007: Design Concept Inside Box Design Motor Power supplyclutch

Optical switch design and placement P07007: Design Concept

Software Flowchart

P07007: Design Concept

Over Voltage –Solution: use over voltage regulators use fuses Short Circuit –Solution: use PCB to limit wires use shrink tubes to insulate wires Components overheat –Solution: include proper ventilation and/or fan (if needed) to circulate air throughout device P07007: Risk Assessment

P07007: Budget ItemComponentSupplierPart #Qty.Price PerTotal PriceNotes 1PICDM2 Microchips DM $99.99$ includes shipping 2MicrocontrollerMicrochipsPIC 16F876A2 $7.39 $19.56 includes shipping 3 Optical coupler ** FairChild semiconductor FOD852 2 $0.80 $ Current Sensor Allegro ACS750SCA $ SCR MOUSER 576-S6015L 2 $1.69 $ Fairchild Infrared Interrupter MOUSER 512-H21B1 3 $1.34 $8.80 includes shipping 7 Fairchild Power NPN MOUSER 512-FJP5555TU 3 $0.83 $11.49 includes shipping 8 Darlington FairChild semiconductor TIP $0.80 $ Potentiometers MOUSER H-1-254LF 1 $ Diode RIT 1N $ Motion SensorHome Security StoreDX-402$42.50$ Optex Bracket Home Security Store FA-1W 2 $7.00 $20.95 includes shipping 13Fairchild Optical Interrupterwww.newark.comMOC70P12$0.59$ Electric Strike PlateFairfax ElectronicsTrine 0011$ Voltage regulator **RIT LM3176 $ PCB BoardPCB express 1$200.00$ includes shipping 17Connectors (for PCB)RadioShack 1$ Heat Shrink tubing RadioShack 1$ Linear Ball Bearing MSCindustrialsupply 1 $ Aluminium box Metal Supermarket $ Fuses (3Amps, 250V) RadioShack--1 $ PCB relays MOUSER655-RTE24005F4 $2.40 $22.48 includes shipping 23 FCI Modular Jacks PCB 6 POS VERTICAL MOUSER LF1 $0.83$5.63includes shipping 24 Crystals MOUSER815-ACOL-4-EK2 $1.95 $ Vishay/Dale Tuning F KHZ 2X6 Mouser 73-XT26T 1 $ Power Relays Mouser817-FTR-F1CD012V4 $2.50 $22.76 includes shipping 27 Resistors ( various values) RIT'-- $ Fan Mouser433-BP602512H1 $ Capacitors (various value) RIT--1 $ Screws, Nuts, washers, spacers MSCindustrialsupply 1 $ BreadBoard RadioShack 1 $ Rocker Switch RadioShack 1 $ TO-220 HeatSink mouser PB 5 $0.29 $ Door Installation 8 $40.00$320.00$40/hour, estimate 4hrs for 2 men $1,184.90

Phase 0: Meet with customer and define needs Phase 1: Concept development and selection Phase 2: System level design Phase 3: Detailed Design Phase 4: Testing, debugging, and documentation MSD 1MSD 2 Current phase of development P07007: Product Development Process Phase

Design meets all customer needs Control system design/layout complete. System flowchart complete. Current budget status: –Available: $1200 –Expected cost: $740 All components will be ordered next week –Only long lead item is PIC microcontroller development board (2 weeks) P07007: Current State of Design

Mar.19: Design verification completed, PCB design completed. Mar.26: Software developed and tested. Apr.20: Software and Hardware combined and tested. May 04: Build casing for system. May 11: Write user manual, formal paper & poster. May 18: Project Review - Phase 4 Completion P07007: MSD II Project Schedule Milestones

QUESTIONS?