P07007: Adapted Home Entry

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 appearanceall components and wiring enclosed in casing except the sensors.

• Design within budget<= $1200

P07007: High Level Customer Needs

P07007: Design Concept

Door Overview


Inside Box Design

Motor

Power supply clutch

Optical switch design and placement



Software Flowchart

Start /Reset

Open button is pressed

Check sensor 2

Start timer

Sensor pick up motion?

Sensor 2 off

1. Release Strike Plate / lock in 1 sec.

2. Electromagnet push 3. Engage Clutch

Rotate motor to open

Door hits “open” optoswitch?

OrCurrent sensor picks

spikes?

NO

Stop Motor

YES

Timer = 0 ?or Close button

pressed?

Check Sensor 1 Check sensor 2

Movement detected?

1. Sensor 2 off 2. Electromagnet Pull (

reverse the polarity)

30 sec. timer

initialize

Door hits “closed” optoswtich?

Did current sensor pick up spike?

NOSensor 1 Motion detected?

NO

1.Stop Motor2.Turn off sensor 1 YES

Start/ Reset : 1. Motor is off

2. electromagnet off 3. Looking for input from

receiver 4. Clutch is disengaged

Sensor 1: outside Sensor 2: inside

Close Bt. or Timer = 0

1. Rotate motor to closed position

5 sec yet? NO

NO

YES

Reset to 5 Sec

YES

Is door closed already? Read from closed optoswitch

No

Yes

Is it 5 seconds yet?

NO

No

yes

Reset timer

Yes

1. Disangage Clutch

2. Turn off electromagnet

3. Turn off motor

Yes

No

yes


Title

Size Document Number Rev

Date: Sheet of

<Doc> 2

Adapted Home Entry Control System

B

1 1Friday, May 04, 2007

D16

D1N4001

Motion Sensor 1(pin 27)

U1

PIC16F876A

1234567891011121314 15

16171819202122232425262728

Q7

TIP120

R34POT

Limit switch for motor

R2110k

0

0

R20240

Optical Sensor (pin2)

0

PIN 9

5V

5V

5V

R11470

0R3510k

Pin 12

Rec

iver

Sec

ond

wire

5V

R2510k

Electromagnetic Clutch

D7D1N4149

jump connector

R2610k

Motor

Motor

NMCLR

5V

D4FFPF10UP60S

ACS750xCA-050

Current sensor

1 2

3 4 5

5V

R19

470 R2410k

0

0

U31

ICD

1234

65

NMCLR(Pin1)

0

0

U14LM150

IN2

OUT3

ADJ

1

Fan on EN

0

D13

D1N4001

Crys tal Osceillator (pin 11)

0

U27LM150

IN2

OUT3

ADJ

1

5V

R17

470

0

Electric Strike Plate


0

D5FFPF10UP60S

U28

3C91

Q8

TIP120

R22

470

Motion Sensor 2(pin 5)

L4

10uH

1 2

U29

3C91

0

Pin28

Crys tal Osc illator pin12

U2

Relay_DPDT_b

COM1

A

B

NC1

NO1

COM2NC2

NO2

R39R

R37

1k

Electromagnetic Clutch

U3

Relay_DPDT_b

COM1

A

B

NC1

NO1

COM2NC2

NO2

24Vdc

R38

1k

90V

A1

MG1

MOTOR

12

Pin 9

0

0

0

0

0

L110uH

1

2

Q4

TIP120

0


R33

470

Q5

TIP120

R3610k

R13

470

D8

D1N4149

0

U12LM150

IN2

OUT3

ADJ

1

R14240

R152k

Q6

TIP120

C10.1uF

C111u

R40r

Electromagnet

0

0

0

R1240

D9D1N4001

5V

Pin27

L3

100mH

1 2

R2820

R16

470

R51k

R61k

C11n

0

D15

D1N4001

C5.1uF

R321k

5V

Current Sensor

0

R12

470

Electric Strike Plate

R314.7K

X1

32Khz for time1

C1622pf

Electromagnet

0

U30

Crys tal Osc illator

1

4

8

5

CR OST (pin 11)

C1722pf


ICD

0

Reviver (pin 25)

0

Motion Sensor 1 EN

R18

470

ICD

C71n

C1922pf

0

Motion Sensor 2 EN Rec iv ier


• 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: BudgetItem Component Supplier Part # Qty. Price Per Total Price Notes

1 PICDM2 Microchips DM163022 1 $99.99 $110.99 includes shipping

2 Microcontroller Microchips PIC 16F876A 2 $7.39 $19.56 includes shipping

3 Optical coupler ** FairChild semiconductor FOD852 2 $0.80 $1.60

4 Current Sensor Allegro ACS750SCA-050 1 $2.55 $2.55

5 SCR MOUSER 576-S6015L 2 $1.69 $3.38

6 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 TIP120 10 $0.80 $8.00

9 Potentiometers MOUSER 652-3386H-1-254LF 1 $1.29 $1.29

10 Diode RIT 1N4001 10 $0.00 $0.00

11 Motion Sensor Home Security Store DX-40 2 $42.50 $85.00

12 Optex Bracket Home Security Store FA-1W 2 $7.00 $20.95 includes shipping

13 Fairchild Optical Interrupter www.newark.com MOC70P1 2 $0.59 $1.18

14 Electric Strike Plate Fairfax Electronics Trine 001 1 $22.50 $22.50

15 Voltage regulator ** RIT LM317 6 $0.00 $0.00

16 PCB Board PCB express 1 $200.00 $290.73 includes shipping

17 Connectors (for PCB) RadioShack 1 $2.25 $2.25

18 Heat Shrink tubing RadioShack 1 $1.95 $1.95

19 Linear Ball Bearing MSCindustrialsupply 1 $35.60 $35.60

20 Aluminium box Metal Supermarket 01316018 85 1 $150.10 $150.10

21 Fuses (3Amps, 250V) RadioShack -- 1 $2.99 $2.99

22 PCB relays MOUSER 655-RTE24005F 4 $2.40 $22.48 includes shipping

23FCI Modular Jacks

PCB 6 POS VERTICAL MOUSER 649-69254-001LF 1

$0.83 $5.63 includes shipping

24 Crystals MOUSER 815-ACOL-4-EK 2 $1.95 $3.90

25Vishay/Dale Tuning F 32.768 KHZ 2X6

Mouser73-XT26T

1$0.37 $0.37

26 Power Relays Mouser 817-FTR-F1CD012V 4 $2.50 $22.76 includes shipping

27 Resistors ( various values) RIT '-- $0.00 $0.00

28 Fan Mouser 433-BP602512H 1 $8.00 $8.00

29 Capacitors (various value) RIT -- 1 $0.00 $0.00

30 Screws, Nuts, washers, spacers MSCindustrialsupply 1 $13.42 $13.42

31 BreadBoard RadioShack 1 $1.99 $1.99

32 Rocker Switch RadioShack 1 $3.99 $3.99

33 TO-220 HeatSink mouser 532-6043PB 5 $0.29 $1.45

34 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

0 1 2 3 4

MSD 1 MSD 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?

Documents

P07007: Adapted Home Entry