I llinois R iver O tter T racking S ystem ECE 445 #15 Fall 2012 Gerard McCann 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 Attiny1634 PicoPower 2 UART COM links
GPS System Venus 638FLPx Skytrack Accurate to >100m Non-directional active antenna Timely Acquisition
RF System TI CC1000 Low power TX and RX >10m com radius
Power Switch TI-TPS22960 Dual Switch Low Quiescent Current Low ‘on’ resistance
Flash Memory Ramtron FM25p16 Low power Non volatile FRAM Instantaneous memory access
Implant - Power
Implant - Communication
Implant – Test Interface
Implant Final Board
Implant Battery GSP mAh Rechargeable Battery
GPS Location Test It Works!!
Vibrational Energy Generating System Piezo crystals Insufficient Power Generation New PiezoOld Peizo Expected Steps Energy Generations J Steps Required / Day Energy Generations J Steps Required / Day Energy Required J Steps Expected / Day 4.37E E E E E E+04 Old Piezo New Piezo Number of Steps
Base Station
Microcontroller RF System SD Card & Interface Base Station Board
Any Questions?