Group 16 Karena Stout Ryan Sivek Alex Balogh. Background. US Army currently uses the Multiple Integrated Laser Engagement System (MILES ) for combat training System is expensive and somewhat inaccurate
Compared optical, GPS, and ultrasonic.
Optical: cost effective with webcams, but inaccurate at range
GPS: best range, but precision is too expensive.
Ultrasonic: poor range, but low cost with recorded absolute error of within 3 centimeters*
Our Solution: Ultrasonic positioning
*Bjerknes, J. D., Liu, W., Winfield, A. F., and Melhuish, C. (2007). Low Cost Ultrasonic Positioning System for Mobile Robots. In Wilson, M.S., Labrosse, F., Nehmzow, U., Melhuish, C., and Witkowski, M., editors, Proceeding of Towards Autonomous Robotic Systems, pages 107 - 114, Aberystwyth, UK.
Dipole Chip Antenna
Attached Monopole Whip
The AEAS system needs a way to track statistics of the users’ shots fired to hit ratio to track progression of training soldiers.
-> The AEAS solution is RFID
-> Inductive RFID system!
Voltage is induced by mutual inductance between the reader’s and the card’s induction coil antennas to power the chip, along with an ID query to the chip
The load is changed on the coil antenna to rectify the query signal and return its ID
To increase accuracy, our implementation will use a weighted average between accelerometer data and the calculated gyroscope measurements to get the final estimated values.