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RFID Tether FINAL

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					RFID Tether System
   Advisor: Dr. Sung Joo

        Group 225

       Daren LaBere
          Jon Tuil
       Brandon Kern
    RFID Tether System
   Problem / Solution
   Block Diagram
   Schematics
   Software Flow Chart
   Testing and Evaluation
   Hardware Identification
   Overall Costs
   Demonstration
   Problems & Lessons Learned
   Future Work
   Summary
            Problem Statement


Existing Systems:
   Mechanical Switch
   Leash and Wristband
   Low Security
   Recreation vehicles:
    Snowmobiles, PWCs, Boats, ATVs
                                   Solution
Objective:
       Develop a wireless tether system using RFID
       Add security features
Requirements:
       Passive Tag
       Range
       Low Cost
       Small Size
       Environmental Effects
       Durability
       Power Requirements
       Security
       Compatibility with Existing Systems
Applications:
     Recreation vehicles:
   Snowmobiles, PWCs, Boats, ATV,etc.
         Block Diagram
                   Power




                                           Vehicle
 RFID      PIC Microcontroller   Ignition System Interface
Reader




  RFID         PC Interface
  Tag
Power Stage
Microreader
Microcontroller
Vehicle Ignition Interface
Overall Schematic
Software Flow Chart
      Testing and Evaluation
 Power
 Communication
 Security
 Ignition   Interface
 System
        Hardware Identification




1. Voltage Regulator
2. MOSFET switch
3. Microprocessor
4. Relay
5. Microreader
6. Wiring Harness
7. Antenna
      Hardware Identification




1. Wiring harness
2. RFID Module
3. Antenna
                      Overall Costs
   Texas Instruments LF Evaluation Kit: $284.29
   Additional Microreader: $71.00
   Voltage regulator: $0.32
   PIC16F876: $5.11
   Relay: $1.88
   MOSFET: $1.50
   PCB: $0.00
   Additional RFID Tags: $16.00
   Misc. Wire, Antennas, Solder, etc.: $20.00
   Sample Components: $0.00
   Enclosure: $10.00


         Total: $410.10
Demonstration
    Problems & Lessons Learned
 Don’t procrastinate.
 Keep previous circuits for
  troubleshooting help.
 Use components that NDSU has
  development kits for.
 Assign certain tasks to certain group
  members.
                       Future Work
   Design own RFID reader. Customize your own reader to get the
    options that you want for your particular application. This would also
    reduce overall costs dramatically.

   Use a higher frequency. When designing a new reader, use a
    RFIC that is designed for a higher frequency, which will allow for
    longer read ranges and flexibility.

   Design own transponder. Allows for maximum read range and
    customization for user’s preference of the type of tag they prefer to
    wear.

   Add-ons for specific vehicle. Check various sensors on vehicle
    for abnormalities or status of operating conditions. For example,
    temperature sensors could be used to check for overheating in the
    vehicle and shut it down to prevent damage to system.
                 Summary
   Problem / Solution
   Block Diagram
   Schematics
   Software Flow Chart
   Testing and Evaluation
   Hardware Identification
   Overall Costs
   Demonstration
   Problems & Lessons Learned
   Future Work
Questions?

				
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posted:3/31/2012
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