COSMIC CUBE

Team Lead/Programmer: Kenneth Spradley Lead ECE: Matthew GibsonECE Assistant: Don Lundi Lead ME: Cole GrayFinancial Advisor: Crystal Hill

Presentation Outline • Crystal Hill

• Project Executive Summary • Schedule• Budget • Deliverables

• Matthew Gibson• Sensor• Amplifier• Pulse Stretching• High Voltage

• Don Lundi • GPS• WIFI

• Kenneth Spradley• Microcontroller/CPU• TPU

• Cole Gray• Structure of Cube

CRYSTAL HILL

•Project Executive Summary •Schedule•Budget •Deliverables

Executive Summary

• Project Description• Problem Statement• The Team• Target Market

Schedule

Schedule

Schedule

Completed• Ordered and Received

• Scintillator• Photo Detector• Arduino Mega• Jumper Wire• LEDs• Wi-Fi Shield

To Be Completed• Order Remaining

Components• Programming• Build Structure

Budget

Budget

Budget

Overhead Costs Total Direct

Costs Personnel+Expenses $73,177.24 Overhead Costs 45% of Direct $32,929.76 Equipment 0

Total Project Cost $106,107.00

Deliverables• User’s Manual• 1 cube segment complete with

• Enclosure• Scintillator• Solid-state Photodiode• GPS Module• DAC board• Time Processing Unit• Wi-Fi Module• Power Supply

• Design schematics• All code files developed for microcontrollers

Major Components • Scintillator• Photo-Detector• Microcontroller/CPU• Global Positioning Systems (GPS)• Wi-Fi• Structure• Radioactive Isotope• Power Supply• Time Processing Unit (TPU)

MATT GIBSON

•SENSOR (SCINTILLATOR + PHOTO-DETECTOR)•AMPLIFIER•PULSE STRETCHING•HIGH VOLTAGE

Overview Of System

FLOW CHART

SCINTILLATOR

Budget Impact: $0.00Actual Value: $500.00

Budget, Schedule, & Technical Risks

Technical Risks• The scintillator isn't polished and coated properly.

Budget Risks •The scintillator material costs more than the budget allows for.

Schedule Risks • Ordering more material and preparing it would take

weeks.

PHOTO-DETECTORS10362-33-025c

EFFECTIVE AREA 3x3mm

PIXELS 14400VOLTAGE 70PEAK WL 440nm

Budget Impact: $0.00Actual Value: $344.00

Budget, Schedule, & Technical Risks

Technical Risks• The photo-detector isn't sensitive enough or the output pulse is

too small.

Budget Risks •The photo-detector costs more than the budget allows for or requires more costly amplification.

Schedule Risks •If the photo-detector doesn't produce a large enough pulse, then a new method of photo-detection will require more time to develop.

AMPLIFIERAD8000

BANDWIDTH 1.5Ghz

SLEW RATE 4100v/us

SUPPLY VOLTAGE 4.5v-12v

PACKAGE SOIC-8

Budget Impact: $0.00Actual Cost: $1.83

Budget, Schedule, & Technical Risks

Technical Risks• The amplifier cannot amplify the signal enough for the Arduino, or

the circuit is too noisy.

Budget Risks •The amplifier requires a more sophisticated service that costs more than the budget allows.

Schedule Risks •Designing a new circuit will take extra time for design and manufacture.

PULSE STRETCH

Budget, Schedule, & Technical Risks

Technical Risks• The pulse stretcher cannot lengthen the pulse enough for the

Arduino to properly sample.

Budget Risks •The pulse stretcher requires a more sophisticated circuit that is more costly.

Schedule Risks •Designing a new circuit will take extra time for design and manufacture.

HIGH VOLTAGEEMCO-A01

OUTPUT 0-100VDCINPUT 0-5VDC

CONTROL PROPORTIONAL

POWER 1WPRICE $59.00

Budget Impact: $59.99

Budget, Schedule, & Technical Risks

Technical Risks• The power supply cannot be controlled properly for the photo-

detector.

Budget Risks •A more precise power supply is more costly.

Schedule Risks •Finding or having to build a proper power supply will take extra time

DON LUNDI

•GPS•WIFI

New ApproachRequirements: Justification: Timing accuracy to at least 1 second

Needed for TPU to keep increased timing accuracy

Ease of interfacing

Much programming and calibration is needed for the project and if less time is required to program the GPS. More time can be allotted for other parts of the project.

Trimble Resolution T GPS Receiver

EM-406A Receiver

GPS Receiver ModuleArduino GPS Shield

• LED indicator• Built-in patch antenna• Hot start 1 sec., average• Cold start 42 sec., average• 4.5V-6.5V DC input• 44mA• 1us synchronized to GPS time• Budget Impact: $79.95

Flow Chart

Budget, Schedule, & Technical Risks

Technical Risks• The GPS receiver provides times that are lagging that of the

signal received by the GPS satellites

Budget Risks •Having to purchase dedicate timing GPS receiver

Schedule Risks •If the EM-406A does not allow for the timing resolution needed replacing the receiver will take time.

WI-FI

• Protocol: 802.11b/g

• Clock Speed: 16MHz = 63ns

• Operating Voltages: 3.3

• Ease of Interface: Minimal

Programming Required

• Budget Impact: $84.95

Arduino WIFI Shield

WIFI – Code Algorithm

Budget, Schedule, & Technical Risks

Technical Risks• Cease to Function Properly

• Unable to Transmit Data to User’s PC

Budget Risks • Order A New WI-FI Module

Schedule Risks • 7 Business Day Shipping Period (Minimum)

• Additional Time Required and Resources to Debug Code

KENNETH SPRADLEY

•Microcontroller/CPU•TPU (Time Processing Unit)

MicrocontrollerRequirements: Justification:  Clock speed under 100 nanoseconds  

Particle Events occur on average at a rate of once every 100 nanoseconds

 Detect Multiple Incoming Analog Signal  

Each Sub Cube will have Individual MPPT

 Price  

This will eventually be a commercial product and needs to be affordable to the mass market

 Memory  

Enough memory to program multiple libraries as well as interfacing with multiple components

MicrocontrollerArduino Mega 2560 R3

• Clock Speed: 16MHz = 63ns

• Operating Voltages: 5V

• Input Voltage Limits (6-20V)

• Flash Memory: 256KB

• 16-Analog Input

• 54 -Digital I/O

• Budget Impact: $58.95

Microcontroller

MPPT

(After Wave Amplified and Stretched)

Time Processing Unit

WIFI

LEDs

Microcontroller

Algorithm

Budget, Schedule, & Technical Risks

Technical Risks• Cease to Function Properly

• Microcontroller Memory Size to Small

Budget Risks • Order A New Microcontroller

Schedule Risks • 7 Business Day Shipping Period (Minimum)

• Additional Time Required to make Code More Efficient

Time Processing Unit (TPU)Requirements: Justification:  Clock speed under 100 nanoseconds  

Particle Events occur on average at a rate of once every 100 nanoseconds

 Multiple Analog and Digital I/O Pin  

TPU will eventually be responsible for collecting the timing data from multiple sub-cubes

 Price  

This will eventually be a commercial product and needs to be affordable when mass produced

 Memory  

Enough memory to program timing/clock algorithm and hold timing data until requested by microcontroller

Time Processing Unit (TPU)

• Memory: 32 MB

• Clock Speed: 50MHz = 20ns

• A/D Converter 8 Channel / 12-bit

• Operating Voltages: 5 V

• Interface Type: SPI, Serial,

• Impact Budget: $86.25

Altera DE0 Nano

TPU – Code Algorithm

Budget, Schedule, & Technical Risks

Technical Risks• Interfacing Issues with Microcontroller

• Memory Size to Small

Budget Risks • N/A

Schedule Risks • Allocate More Individuals

• Additional Time Required to make Code More Efficient

COLE GRAY

•Structure of Cube

Lead Mechanical Engineer

Sub-Cube Structure

The top compartment will be all Aluminum, but is shown clear to see inside the sub-cube.

Sub-Cube Structure• The sub-cube will be 11.5” on a side.

• It will have a top compartment and bottom compartment.• The top compartment will house the scintillator.• The bottom compartment will contain the electronics.

• Once the size of the electronics are known, shelves will be designed in the bottom compartment to hold the electronics securely.

Top Compartment

Top Compartment• All six sides will be made out of 3/16” Aluminum

• The sides will be bolted together using #2-56 bolts 5/8” in length.

• The bottom side will have a small hole in the center, that allows the sensor lens to slightly fit through.

• Angle Aluminum will be used to securely hold the scintillator and the ecomass material in place.

Bottom Compartment

Bottom Compartment• The four walls, and the bottom side will be made out of

3/16” Plexiglass.• The sides will be bolted together using #2-56 bolts 5/8” in length.

• This will allow light through, but will allow the consumer to see the “brains” of the cube, and will be more appealing.

• A rubber gasket will be added to all edges to improve water resistance

Cube Structure

Cube Structure• The current design is for up to 27 cubes

• More sections can be added, but will not form a “cubic” structure

• Each section can hold up to three cubes• The sections can be added side to side or top to

bottom

• The sections are bolted together• The bolts help hold the cubes in place from sliding

around

Budget, Schedule, & Technical Risks

Technical Risks• Small bolt size may cause bolts to break off

• Materials may not be thick enough to increase bolt size

• Everything may not fit together properly

Budget Risks • Thicker materials may need to be ordered

Schedule Risks • Machine shop may be backed up from other projects

Cube Structure

Bill of Materials

Budget Impact: $110.00

Questions?