TY - GEN
T1 - Real time control of a wireless powering and tracking system for long-term and large-area electrophysiology experiments
AU - McMenamin, Peter
AU - Jow, Uei Ming
AU - Kiani, Mehdi
AU - Ghovanloo, Maysam
PY - 2012
Y1 - 2012
N2 - This paper presents recent progress towards the development of the EnerCage system for efficient wireless power and data transmission with a focus on its real time control and tracking algorithms. The EnerCage is meant to be used in long-term uninterrupted electrophysiology experiments on small, freely behaving animal subjects in large experimental arenas. It includes a stationary unit for closed-loop inductive power transmission, an array of 3-D magnetic sensors for non-line-of-sight positioning of the animal subject, and a mobile unit to efficiently power the target device and establish wireless data communication. The stationary unit, which includes a scalable array of overlapping hexagonal coils, takes advantage of 3-and 4-coil links to further increase the power transmission efficiency (PTE) and decrease the required number of drivers. A magnetic tracking algorithm is presented that reduces the number of magnetic sensors needed for localization. The algorithm achieves a worst-case localization error of 3 cm at the nominal height of 12 cm above the surface of the coil array. Measurement results show the functionality of the closed-loop power transmission and subject tracking over 70 cm.
AB - This paper presents recent progress towards the development of the EnerCage system for efficient wireless power and data transmission with a focus on its real time control and tracking algorithms. The EnerCage is meant to be used in long-term uninterrupted electrophysiology experiments on small, freely behaving animal subjects in large experimental arenas. It includes a stationary unit for closed-loop inductive power transmission, an array of 3-D magnetic sensors for non-line-of-sight positioning of the animal subject, and a mobile unit to efficiently power the target device and establish wireless data communication. The stationary unit, which includes a scalable array of overlapping hexagonal coils, takes advantage of 3-and 4-coil links to further increase the power transmission efficiency (PTE) and decrease the required number of drivers. A magnetic tracking algorithm is presented that reduces the number of magnetic sensors needed for localization. The algorithm achieves a worst-case localization error of 3 cm at the nominal height of 12 cm above the surface of the coil array. Measurement results show the functionality of the closed-loop power transmission and subject tracking over 70 cm.
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U2 - 10.1109/BioCAS.2012.6418452
DO - 10.1109/BioCAS.2012.6418452
M3 - Conference contribution
AN - SCOPUS:84874185951
SN - 9781467322935
T3 - 2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications
SP - 240
EP - 243
BT - 2012 IEEE Biomedical Circuits and Systems Conference
T2 - 2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012
Y2 - 28 November 2012 through 30 November 2012
ER -