Midterm PresentationSenior Design II

February 28, 2012

Dr. Raymond Winton

David Houston Electrical Engineering

Sam TurnerElectrical Engineering

Brady CunninghamComputer Engineering

Matt FullerComputer Engineering

TEAM MEMBERS

•Power Circuit•Camera•PCB Design

•Motion Sensor•Real Time Clock•PCB Design

•USB VDIP•Microprocessor Programming

•Web Site•Microprocessor Programming

ADVISOR

OVERVIEW

I. ProblemII. SolutionIII. System OverviewIV. Constraints

I. TechnicalII. Practical

V. RefinementsVI. PackagingVII. PCB & SchematicVIII. Testing IX. Timeline

Motion CLICK!

Pictures

Jail

Save

PROBLEM

• Current security camera systems available on the market are expensive and complicated.

SOLUTION

• The Home Surveillance Device will be a cheap, easy to use camera that takes a series of pictures when motion is detected.

SYSTEM OVERVIEW

Motion Sensor

RTC

Camera Microprocessor Storage

Power

CONSTRAINTS: TECHNICAL Name Description

Motion Detection Range

The HSD must detect motion at least 25 feet away.

Power The HSD must operate from a standard 120V wall outlet, and it must be able to operate on battery power for at least 1 month (based on 150 pictures a day.)

Minimum Resolution The HSD must take pictures at a minimum resolution of (320x240).

Picture Storage The HSD must be able to store at least 1 month worth of pictures.

Camera Warm up Time The HSD must be able to take a picture within two seconds of motion.

CONSTRAINTS: PRACTICAL Type Name Description

Manufacturability Size The HSD’s dimensions must not exceed 4” x 3” x 2.”

Usability Storage The HSD must have an easy – to – use removable storage device.

CONSTRAINTS: PRACTICAL

Manufacturability: Size

The HSD must have dimensions that will not exceed 4"x3"x2.” This will allow the HSD to:

•Be placed anywhere in a room•Go unnoticed anywhere it is placed•Be discrete and aesthetically pleasing

CONSTRAINTS: PRACTICAL

Usability: Storage

The HSD must have an easy to use storage device that:

•Any modern computer can use without separate cables or devices.•Has a large storage capacity•Is easy to remove•Is easy to retrieve data

Part DescriptionMicroprocessor PIC24FJ64GA102

Clock DS3234 External RTC

Motion Sensor AMN14111Panasonic NaPiOn

Camera LS-Y201-IR-TTLLinkSprite Infrared JPEG

Storage VDIP1USB Interface

COMPONENTS SUMMARY:

[1]

[2]

[3]

[4]

[5]

REFINEMENTS:

Project running within stated specifications last semester.

•Refinements: Cleaned up Code External Switch on case allows the user to turn on/off

the device easily. When case is opened up there are two other switches

• Turn on/off battery power• Turn on/off external power

PACKAGING

PACKAGING:

•Three types of packaging we are looking into:

1. Purchase a ready made enclosure

2. Fabricate a custom enclosure

3. Camouflage

PACKAGING READY MADE:

[6]

PACKAGING READY MADE (continued):

[7]

[8]

PACKAGING CUSTOM:

PACKAGING Camouflage (Concepts):

Dictionary?

Textbook?

Coffee Cup?

Apple?

[9]

[8]

SCHEMATIC

SCHEMATIC FULL:

[1]

[4]

[6]

[8]

[11]

Power Circuit

Microprocessor & Programming

Connections

Camera Connections

Clock Connections

Motion Sensor Connections

VDIP Connections

SCHEMATIC POWER:

[1]

[4]

[6]

[8]

[11]

TEST POINTS

SCHEMATIC COMPONENTS:

[1]

[4]

[6]

[8]

[11]

Camera Clock

Motion Sensor VDIP Storage

TEST POINTS

SCHEMATIC MICROPROCESSOR:

[1]

[4]

[6]

[8]

[11]

PCB

PCB LAYOUT:

2.8

5”

2.78”

PCB LAYOUT (CONTINUED):

Camera Connections

Power Circuit

Motion Sensor Connections

Microprocessor and Programming

Connections

VDIP

Clock

TESTING

SYSTEM TESTS :

[1]

[4]

[6]

[8]

[11]

Tests will be performed once our PCB arrives. We will test our components in the following order:

• Power Supply/Power Circuit• Components

Microprocessor Camera Motion Detector RTC VDIP USB Module

SYSTEM TESTS Power Circuit:

[1]

[4]

[6]

[8]

[11]

•Assemble•Measure output voltages•Populate the remaining parts once voltages are acceptable

SYSTEM TESTS Microprocessor :

[1]

[4]

[6]

[8]

[11]

•Program with Bully Bootloader•Verify we can send and receive data

SYSTEM TESTS Camera :

[1]

[4]

[6]

[8]

[11]

•Monitor transmit and receive ports with logic port analyzer•Send power mode commands to the camera•Verify functionality by monitoring current draw

SYSTEM TESTS Motion Detector :

[1]

[4]

[6]

[8]

[11]

• Monitor the output port using logic port analyzer• Verify motion detection range by seeing the pin pulled low

SYSTEM TESTS RTC:

[1]

[4]

[6]

[8]

[11]

Using a read and write time program and bully bootloader, communication to the Real Time Clock can be checked and verified.

SYSTEM TESTS Complete:

[1]

[4]

[6]

[8]

[11]

• Load the microprocessor with the HSD program.• Measure system current draw• Perform battery life calculations

SYSTEM TESTS Complete (continued):

[1]

[4]

[6]

[8]

[11]

After simulated “break-ins” at various ranges

• Lights on and off • AC power and Battery power

The USB drive will be checked for accurately time stamped pictures.

January End- -Refine code and test

FebruaryMid- -Design printed circuit board

MarchStart- -Populate PCB and test

Mid- -Start designing enclosure and packaging

End- -Get enclosure made and fitted to product

AprilMid- -Begin final tests to ensure intended

functionality

End- -Finalize product

TIMELINE SD2:

REFERENCES:

[1] PIC24FJ64GA102. [Online]. Available: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=PIC24F64GA102-I/SP-ND.

[2] “DS3234”. [Online]. Available: http://www.sparkfun.com/products/10160

[3] “AMN14111” [Online] Available: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=255-2901-ND

[4] “LS-Y201-IR-TTL” [Online]. Available: http://www.cutedigi.com/product_info.php?products_id=4480

[5] “VDIP1" [Online] Available: http://www.newark.com/jsp/search/productdetail.jsp?SKU=34M8945&CMP=AFC-GB100000001

[6] “Case 1" [Online] Available: http://www.rose-bopla.com/Prod_Pgs/Basic_Boxes/Prod_Polycarb_33.htm

[7] “Case 2" [Online] Available: http://www.rose-bopla.com/Prod_Pgs/Basic_Boxes/Prod_Polycarb_33.htm

[8] “Coffee Cup" [Online] Available: http://dyslexiavictoria.wordpress.com/2010/05/09/dyslexia-and-spatial-awareness/

[9] “Apple" [Online] Available: http://www.statesymbolsusa.org/New_York/Fruit_Apple.html

Midterm PresentationSenior Design II

February 28, 2012