PML Portable Multimedia Link Critical Design Review

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PMLPortable Multimedia Link Critical Design
Review
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Team Organization
Project Leader Matthew de Mercado
System Engineers Brandt Williams Parvez
Javeed Anthony Howell
Webpage Manager Anthony Howell
Software Engineers Anthony Howell Parvez
Javeed Abdullah Al-Souri
Circuitry Engineers Brandt Williams Rande
Nicolls Saleh Al-Musalam
Overseer Al-Naqbi Mohammed
Testing Anthony Howell Nasir Al-Qasimi
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What is PML?

• Portable Multimedia System
• Plays audio and video of most formats
• 7 VGA LCD display/interface
• Download files from home pc to mobile unit in the
  vehicle
• Has extremely large storage(60GB)
• Can hold many songs and videos!
• Expandable features
• Retractable touchscreen display
• Retracts into the front console (dash)
• Easy to use

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Product Overview

• PML unit
• A small and powerful PC wirelessly networked to
  home PC
• Allows for fast and easy multimedia transfer
• Always have your songs and videos on demand
• Touchscreen Interface
• Replaces mouse based navigation
• Allows easy access to select and play media
• Power supply
• Powered by vehicles battery
• Has a rechargeable battery pack

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PML Unit

• Motherboard
• VIA EPIA M10000
• 1 GHz C3 processor
• Nehemiah core
• mini-ITX form factor(17cmx17cm)
• 4 layer
• Onboard audio, video, and LAN
• Power PW-70A (100W)

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PML Unit

• Memory and Storage Devices
• Hard drive
• Maxtor 60 GB ATA/133 (3.5)
• Memory
• Kingston 256 MB PC2100 DDR-RAM (1.2)
• Expandable to 1GB
• Optical drive
• Toshiba Slimline 8x/24x DVD-ROM

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Display
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Interface
MediaEngine will be used for the user interface

(www.mediaengine.org)
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Communications

• Both PML and home PC will be equipped with a 2.4
  GHz USB wireless network adapter (11 Mbps)
• Peer-to-peer connection allows transfer of files
  from home PC to PML

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The Power Supply
Vehicle power (12V)
PML Unit
PW-70A 100W Power supply
Power Switching Circuit
Rechargeable battery (12V)
VGA LCD
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Power Switching Circuit
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Testability Design Discussion

• Software
• Virus infections
• Operating System hang-ups
• Hardware
• Over-Heating/heat dissipation
• Compatibility issues
• Insufficient shock absorption

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Testability Design continued

• Electrical System
• Voltage ranging outside of required voltage
  parameters
• When car battery starts, dip in power resulting
  in CPU restarting
• Insufficient power distribution of components
• Current Leakage

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Risk Mitigation(Software)

• Both host PML on Windows XP Op. Sys.
• Small keyboard might have to be supplied for
  trouble-shooting purposes.
• Interface redesigned by re-coding (Open Source)
• Initial Virus check with periodic follow ups

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Risk Mitigation(Hardware)

• The necessary air flow and fan efficiency
  adjustments will be made to ensure that proper
  cooling.
• Create code to buffer media files

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Risk Mitigation(Contd)

• Inclusion of a voltage regulator
• Redesign circuit to better regulate current
• Mechanical components have to be replaced.
• Change wireless card (ie. 52 Mbps).
• Reposition antenna(s)

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System Design

• Present Design
• Expanded storage
• Replaced PCI network card with USB adapter
• Increased RAM
• Added DVD ROM
• Bigger and better display
• Increased case size
• Decided to place it in/under glove compartment
• Remote on/off

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Show us the money!

• Most of the project will be funded by
• We hope to receive from help from
• VIA systems (Motherboard)
• Digital Worldwide (LCD)
• Maxtor (Hard drive)

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Budgeted vs. Actual Hours
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Questions ? Comments?

• For more info see our website!
• http//my.fit.edu/ahowell/pml_crew.html