Real time control of a wireless powering and tracking system for long-term and large-area electrophysiology experiments

Peter McMenamin, Uei Ming Jow, Mehdi Kiani, Maysam Ghovanloo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

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.

Original languageEnglish (US)
Title of host publication2012 IEEE Biomedical Circuits and Systems Conference
Subtitle of host publicationIntelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications
Pages240-243
Number of pages4
DOIs
StatePublished - Dec 1 2012
Event2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Hsinchu, Taiwan, Province of China
Duration: Nov 28 2012Nov 30 2012

Publication series

Name2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications

Other

Other2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012
CountryTaiwan, Province of China
CityHsinchu
Period11/28/1211/30/12

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Biomedical Engineering

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    McMenamin, P., Jow, U. M., Kiani, M., & Ghovanloo, M. (2012). Real time control of a wireless powering and tracking system for long-term and large-area electrophysiology experiments. In 2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications (pp. 240-243). [6418452] (2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications). https://doi.org/10.1109/BioCAS.2012.6418452