GOBBLER

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GOBBLER
Group 1
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Group Members

• Thomas Riley CpE Candidate
• John Hatton CpE Candidate
• Russell Renzy EE Candidate
• John Petrusky EE Candidate

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Purpose

• A time saving device for hunters, used to assist
  in the locating and hunting of turkeys or other
  wild animals
• We plan on building a test unit to assist the
  sponsor in making a unit ready for sale.

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Specifications

• Programmable Time and Date Activation
• 2 5 Hour Recording Time
• Portable Unit
• Device Interface Using Macromedia Director Xtra

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Microphones

• 4 Unidirectional Panasonic WM-56A103 Condenser
  Microphone Cartridge
• 0.5 mA current consumption at 1.5 V
• Microphone Powering Circuit

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Summing Op-Amp
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Development BoardTMS320VC5416 DSK

• VC5416 operates at 16 160 MHz
• 64K words of on board ROM
• 64K words of on board ROM
• 256K words of on board Flash ROM
• 3 Expansion Connectors (Memory Interface,
  Peripheral Interface, and Host Port Interface)
• 5 Volt Operation

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Development Board
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Development Board
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DSP - TMS320VC5416

• Multibus Architecture Three Separate 16-bit
  Data Memory Buses and One Program Memory Bus
• 40-bit Arithmetic Logic Unit (ALU)
• 128K x 16-bit On-chip RAM
• Eight Blocks of 8K x 16-bit On-Chip Dual-Access
  Program/Data RAM
• Eight Blocks of 8K x 16-bit On-Chip Single Access
  Program RAM
• 16K x 16-bit On-Chip ROM Configured for Program
  Memory

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DSP
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PIC 16F873 16F877 Microcontrollers

• 16F873 used for Power/Alarm System
• Low Power Consumption
• 16F877 used for Microphone Intensity Analysis and
  Serial Communication with PC

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Audio Compression

• Variety of Compression Schemes Available on
  Market
• MP3, GSM, G.726
• MP3 offers best compression factor
• Better compression scheme will reduce cost on
  price and resources
• C5416 DSP able to do MP3 encoding real-time

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PC Interface

• Serial Port
• Device Programming
• Data transfer
• Implemented as a Director Xtra
• Play audio file
• Optional waveform analysis

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Compact Flash

• No data loss when power turned off (Non-Volatile)
• High Storage Capacity
• High Transfer rate (up to 20 MB/s)
• Highly Shock resistant
• (good for outdoor use)
• Small and light weight

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Compact Flash

• Connected to memory expansion on DSP EVM board
• Requires Daughter board attached to EVM Boards
  memory expansion slots
• Programmable thru basic assembly language
• Can store 2 hours of audio on 64 MB card

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Function Prototypes

• void CF_CheckReadyStatus()
• void CF_CheckBusyStatus()
• void CF_CheckDrqStatus()
• void CF_CheckErrorStatus()
• void CF_HardwareReset()
• void DSP_Init()
• void CF_IssueCommand(unsigned long
  PhysicalSector, unsigned short SectorCount,
  unsigned short Command)
• void CF_IdentifyDrive()
• int CF_Present()
• void ReadCF(unsigned long PhysicalSector,
  unsigned short SectorCount)
• void WriteCF(unsigned long PhysicalSector,
  unsigned short SectorCount)

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Power

• We are going to require approximately .823 Amps _at_
  5 Volts to power all the required components
• Needs power supplied for a minimum of 2 hrs
• Will have timer circuit to keep time to know when
  to turn power on and off

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Real-time Clock

• Epson RTC-8564JE/NB
• Features Alarm, Timer, and Frequency Output
• Compliant with I2C Bus Specification
• Low Current Consumption 275 nA

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Types of Batteries

• Lithium (9v)
• Lithium Ion
• Nickel-Cadmium (Ni-Cd)
• Nickel Metal Hydride (Ni-MH)

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Price Comparison
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Ni-MH

• All Batteries meet the appropriate
  specifications.
• We Chose the AA Ni-MH for their recharge ability,
  high current supply, and low cost.
• We will need Approximately 4 AA batteries to
  power the project for 2-3 hours.

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Block Diagram
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Milestone
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Project Status

• Description Complete
• Parts acquired 80
• Hardware Design 60
• Testing 25
• Prototype 0
• Overall 45

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Optional Components

• Precise Location of Audio Source
• Audio Waveform Analysis to Determine Audio Source
• Temperature Data Collection
• Light Intensity