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TelosB Charging and Energy Meter Kit(Dec1201)

TelosB Charging and Energy Meter Kit(Dec1201). Group Leader: Tomas Mullins Communicator: Casey Liebl Webmaster: Shiya Liu Team Members: Andrew Gurik & Qiao Huang Advisor : Dr. Daji Qiao. Problem Statement. TelosB Charging/Metering Kit. Power from 3 sources

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TelosB Charging and Energy Meter Kit(Dec1201)

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  1. TelosB Charging and Energy Meter Kit(Dec1201) Group Leader: Tomas Mullins Communicator: Casey Liebl Webmaster: Shiya Liu Team Members: Andrew Gurik& Qiao Huang Advisor: Dr. DajiQiao www.seniord.ece.iastate.edu/dec1201

  2. Problem Statement TelosB Charging/Metering Kit Power from 3 sources Charge AA or AAA Batteries NiMH or Alkaline Monitor Current, Voltage, & Power Deliverables 3 Fully Functional Kits Complete Design and Testing Documentation www.seniord.ece.iastate.edu/dec1201

  3. TelosB • Wireless Sensor Module • Low Power • For Experimentation/Research • Open Source Operating System - TinyOS www.seniord.ece.iastate.edu/dec1201

  4. Powercast Receiver • Remote Wireless Power • For Low Power Applications • 40-45 Foot Range • Maximum 4.2V • 100mA http://www.powercastco.com/products/powerharvester-receivers/ www.seniord.ece.iastate.edu/dec1201

  5. Sundance Solar • Small Solar Panel • For Low Power Applications • 4V produced by solar panels • 3.5V output after protection diode www.seniord.ece.iastate.edu/dec1201

  6. Batteries • NiMH (Nickel-Metal Hydride) • 1.2 Volts per Cell • Charges at 1.4 Volts • Alkaline • 1.5 Volts per Cell • Charges at 1.65 Volts www.seniord.ece.iastate.edu/dec1201

  7. Big Picture www.seniord.ece.iastate.edu/dec1201

  8. Users & Uses • iCube Sensors Lab • EE 423: Communication Systems Laboratory • CprE 546: Wireless and Sensor Networks • CprE 454/ComS 554: Distributed and Network Operating Systems • For Research of Energy Replenishment for Wireless Sensor Networks www.seniord.ece.iastate.edu/dec1201

  9. Functional Non-functional Requirements • The entire system must keep power consumption to a minimum • The device must be able to receive inputs from USB, a Sundance Solar charger, or a Powercast Receiver • Must sample power usage every 0.1 seconds • A computer must display the real time data points and store the data • At least an 8 bit ADC resolution on voltage measurements 0-3 Volts • Output the readings to the TelosB device or PC via USB • The size of the device must be limited to 2 AA plus 2 AAA batteries and about 1 inch tall • The system should be neatly integrated • The device could have a sturdy packaging solution www.seniord.ece.iastate.edu/dec1201

  10. Additional Information Constraints: • Production costs ($500 max for three devices at $100 per unit) • Time: Device must be working by December 2012 Potential Risks: • Power Consumption • Over-charging Batteries • Over-voltage on TelosB • Battery life of removable batteries Market Research: • The market has many options for wireless sensors with a charging kit. Many of these devices do not have metering kits for voltage, current and power. www.seniord.ece.iastate.edu/dec1201

  11. Design Decomposition www.seniord.ece.iastate.edu/dec1201

  12. Functional Block Diagram www.seniord.ece.iastate.edu/dec1201

  13. Circuit Diagram www.seniord.ece.iastate.edu/dec1201

  14. Microcontroller Justifications www.seniord.ece.iastate.edu/dec1201

  15. Diode Justifications www.seniord.ece.iastate.edu/dec1201

  16. Regulator Justifications www.seniord.ece.iastate.edu/dec1201

  17. Regulator Testing www.seniord.ece.iastate.edu/dec1201

  18. Cost *All other parts available from the Electronics Shop www.seniord.ece.iastate.edu/dec1201

  19. Hours Consumed for Spring Semester www.seniord.ece.iastate.edu/dec1201

  20. Implementation Plan www.seniord.ece.iastate.edu/dec1201

  21. Schedule www.seniord.ece.iastate.edu/dec1201

  22. Questions? www.seniord.ece.iastate.edu/dec1201

  23. Scenario A: Power Source Connected, Charging Batteries, Reporting to TelosB www.seniord.ece.iastate.edu/dec1201

  24. Scenario B: Power Source Connected, Charging Batteries, Reporting to PC www.seniord.ece.iastate.edu/dec1201

  25. Scenario C: Power Source Connected, Not Charging Batteries, Reporting to TelosB www.seniord.ece.iastate.edu/dec1201

  26. Scenario D: Power Source Connected, Not Charging Batteries, Reporting to PC www.seniord.ece.iastate.edu/dec1201

  27. Scenario E: No Power Source Connected, Reporting to TelosB www.seniord.ece.iastate.edu/dec1201

  28. Microcontroller Power Comparison Current consumption: Battery Life: http://www.ti.com/mcu/docs/mcuorphan.tsp?contentId=61835&DCMP=MSP430&HQS=Other%2bOT%2bulp www.seniord.ece.iastate.edu/dec1201

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