Illinois River Otter Tracking System ECE 445 15

Motivation • Illinois River Otters can now be legally trapped after 83 years. •

Main Components of Implant • Microcontroller • GPS chip and antenna • RF chip

Microcontroller • Attiny 1634 • Pico. Power • 2 UART COM links

GPS System • Venus 638 FLPx Skytrack • Accurate to >100 m • Non-directional

RF System • TI CC 1000 • Low power TX and RX • >10

Power Switch • TI-TPS 22960 • Dual Switch • Low Quiescent Current • Low

Flash Memory • Ramtron FM 25 p 16 • Low power • Non volatile

Implant Battery • GSP 063450 • 1000 m. Ah Rechargeable Battery

GPS Location Test • It Works!! Name of Value Format Scale Hex Value read

Vibrational Energy Generating System Old Piezo New Piezo Expected Steps Old Peizo Energy Steps

Base Station • Microcontroller • RF System • SD Card & Interface Base Station

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Illinois River Otter Tracking System ECE 445 #15 Fall 2012 Gerard Mc. Cann Bilal Gabula Osayanmo Osarenkhoe

Motivation • Illinois River Otters can now be legally trapped after 83 years. • Need for means of long distance tracking of the river otter for research purposes. • Help INHS department in expanding known otter data. • Complex engineering problem to optimize size and power. *Image Courtesy of LA Times

Overview

Main Components of Implant • Microcontroller • GPS chip and antenna • RF chip and antenna • Flash memory • Power switch Complete Implant Device

Complete Implant Schematic

Microcontroller • Attiny 1634 • Pico. Power • 2 UART COM links

GPS System • Venus 638 FLPx Skytrack • Accurate to >100 m • Non-directional active antenna • Timely Acquisition

RF System • TI CC 1000 • Low power TX and RX • >10 m com radius

Power Switch • TI-TPS 22960 • Dual Switch • Low Quiescent Current • Low ‘on’ resistance

Flash Memory • Ramtron FM 25 p 16 • Low power • Non volatile • FRAM • Instantaneous memory access

Implant - Power

Implant - Communication

Implant – Test Interface

Implant Final Board

Implant Battery • GSP 063450 • 1000 m. Ah Rechargeable Battery

GPS Location Test • It Works!! Name of Value Format Scale Hex Value read Scaled value Latitude* SINT 32 10 -7 degrees 0 x 17 e 8 d 479 0 x 17 e 8 d 470 40. 1134713°N 40. 1134704°N Longitude* SINT 32 10 -7 degrees 0 xcb 6 a 26 e 4 0 xcb 6 a 20 ee 88. 2235676°W 88. 2237202°W Week number UINT 16 Counted up from 1/6/1980 0 x 06 ac 1708 ⇨Week of 9/30/2012 Time of week UINT 32 10 -2 seconds 0 x 13776 b 8 2041220. 88 seconds ~9 am Tuesday GMT

Vibrational Energy Generating System Old Piezo New Piezo Expected Steps Old Peizo Energy Steps Energy Generations Required / Expected / Required J J Day Day 4. 37 E-05 New Piezo. Old Peizo. Required • Piezo crystals • Insufficient Power Generation 1. 26 E+07 6. 03 E-07 9. 13 E+08 5. 00 E-01 1. 00 E+04 Steps Expected / Day Steps Required / Day 1 E+00 1 E+01 Number of Steps

Base Station

Base Station • Microcontroller • RF System • SD Card & Interface Base Station Board

Any Questions?