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Cycle One Presentation – Team Jalapeno. Thursday, October 14, 2004. Team Structure. Rigo Macias(CE) Nathan Oertel(CE) Matthew Sneeden(CE) Aaron Staves(CE) Faculty Advisor: Dr. Welch. Problem: 3 different audio devices Home Stereo Car Stereo Portable Expensive

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Presentation Transcript
team structure
Team Structure
  • Rigo Macias(CE)
  • Nathan Oertel(CE)
  • Matthew Sneeden(CE)
  • Aaron Staves(CE)
  • Faculty Advisor: Dr. Welch
introduction
Problem:

3 different audio devices

Home Stereo

Car Stereo

Portable

Expensive

Inconvenience of Transporting Media

Solution:

One device

Portable

Home Docking Station

Car Docking Station

Save Money

Eliminate need to transfer media

Introduction
primary tasks
Primary Tasks:
  • The unit will be functional for portable use
  • Support Functions: Play, Stop, Next/Previous Track, Volume Control
  • LCD will display functional data
  • An adequate power system will be designed
  • PC interface/software will be complete for data transfer
  • Storage of digital music on a mass storage device will be possible
secondary tasks
Secondary Tasks:
  • MP3 Track information will be displayed by the LCD
  • All three applications of the unit will be functional
    • The docking stations will be fully functional
    • Amplifiers for speaker output
    • Power converters will be designed
  • Software for advanced MP3 file management
additional tasks
Additional Tasks:
  • FCC/CE testing/certification
  • Remote control operation of the unit
  • Record capability
  • Playlist capability
  • FM radio capability
current status
Current Status
  • All primary hardware research completed
  • Research conducted in the following areas:
    • Mass Storage Devices
    • MP3 Decoders/Microcontrollers
    • LCD Displays
    • Battery Devices
  • Hardware decisions made based on research results
decision criteria
Decision Criteria
  • Criteria Used
    • Portability
    • Economics
    • Manufacturability
  • Design Decision
    • Cost
    • Physical Size
    • Capacity
current market
Current Market
  • In media players today there are two main types of mass storage devices that are mainly used
    • Flash Memory
    • Hard Disks
flash memory
Flash Memory
  • Solid State Circuitry
  • Extremely Portable
  • Low Power Consumption
  • Expensive
  • Small Capacity
hard disks
Hard Disks
  • Mini Drives
    • Ideal For Portable Use
    • Standard IDE Interface
    • Low Power Consumption
    • Shock Resistant
    • Moderately Expensive
recommendation
Recommendation
  • Mini Hard Drives
    • Low Power
    • Portable
    • Large capacity
    • Low cost compared to Flash Memory
  • Specific Model Recommendation
    • Toshiba MK Series
  • Research further and obtain a drive late cycle 2
decision criteria17
Decision Criteria
  • Criteria Used
    • Portability
    • Controls
    • Economics
    • Manufacturability
  • Design Decision
    • Interface
    • Size
slide18

Current Market

  • In embedded systems, there are two implementations that can be used to decode MP3 information
    • MP3 Decoder Chip
    • Microcontroller with Embedded MP3 Decoder
mp3 decoder chip
MP3 Decoder Chip
  • Inexpensive
  • More Design Options
  • Requires Numerous Additional Components
  • Large Circuit Required to Interface Components
microcontroller with embedded mp3 decoder
Microcontroller with Embedded MP3 Decoder
  • Interfaces for Storage Devices Built In
  • Requires Few Additional Components
  • Small Circuit
  • Inexpensive
  • Capabilities Limited by Microcontroller
recommendation21
Recommendation
  • Microcontroller with Embedded MP3 Decoder:
    • Low number of additional components required
    • Small Circuit
  • Select specific model
    • Atmel AT89C51SND1:
      • Built in IDE interface
      • Large amount of technical support available
  • Obtain MP3 decoder late cycle 2
decision criteria23
Decision Criteria
  • Criteria Used
    • Economics
    • Manufacturability
  • Design Decision
    • Size of Display Digits Needed
    • Cost
current market24
Current Market
  • In audio devices today, two display types are commonly used
    • LCD Character Display
    • LCD Graphical Display
lcd character display
LCD Character Display
  • Inexpensive
  • Compact
  • Large Display Digits
  • No Color
lcd graphical display
LCD Graphical Display
  • Capable of Attractive Graphics
  • Color
  • Display Digit Size Depends on Programming
  • Expensive
recommendation27
Recommendation
  • LCD Character Display
    • Large Display Digits
      • No additional programming required
    • Inexpensive
  • Specific Model Recommendation
    • CrystalFontz CFAH1602A-YYB-Jp
      • 12 x 2 Character Display
  • Obtain LCD Character Display late Cycle 2
decision criteria29
Decision Criteria
  • Criteria Used
    • Economics
    • Manufacturability
    • Environmental
    • Portability
  • Design Decision
    • Cost
    • Size
    • Waste Produced
current market30
Current Market
  • In the current market, there are three types of batteries commonly used in portable devices
    • Alkaline
    • Lithium-Ion
    • Polymer
non rechargeable alkaline
Non-Rechargeable Alkaline
  • Inexpensive
  • Large
  • Not Rechargeable
  • Short Life
  • Thrown Away After Use
lithium ion
Lithium-Ion
  • Lightweight
  • Small
  • Rechargeable
  • Moderately Expensive
polymer
Polymer
  • Lightweight
  • Small
  • Rechargeable
  • Expensive
recommendation34
Recommendation
  • Lithium-Ion Battery:
    • Less-expensive than Polymer
    • Small Size
    • Rechargeable
  • Specific Model Recommendation
    • Ultralife UBP103450/PCM Lithium-Ion
prototype approximation cycle 2
Prototype Approximation – Cycle 2
  • Atmel AT89C51SND1 reference model: $212.00 (Single-chip cost of $12.00)
  • Toshiba 40 GByte mini-IDE hard drive: $168.00
  • 12 by 2 character Liquid Crystal Display: $11.00
  • Lithium Ion Battery: $10.00-$26.00
  • Approximate Total: $400
cycle 2 plans
Cycle 2 Plans
  • Finalize selection of components
  • Determine use of microcontroller I/O
  • Determine interfacing between components
  • Study microcontroller programming environment
beyond cycle 2
Beyond Cycle 2
  • Cycle 3: Design of MP3 player and docking stations
  • Cycle 4: Construction and testing of MP3 player
  • Cycle 5: Final circuits designed and MP3 playback functionality completed
  • Cycle 6: Finalize construction with required specifications included
  • Cycle 7: Cosmetic enhancements and implementation of extra specifications
conclusion
Conclusion
  • Cycle 1 has concluded successfully.
  • All project milestones for this cycle have been achieved.
  • Research shows that the project is feasible and on target for completion.
  • The project is on track to continue into Cycle 2.
conclusion39
Conclusion

Thank you for attending this presentation.

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