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dc.contributor.convenorElfed Lewis
dc.contributor.authorHagem, Rabee M
dc.contributor.authorThiel, David V
dc.contributor.authorO'Keefe, Steven G
dc.contributor.authorWixted, Andrew
dc.contributor.authorFickenscher, Thomas
dc.contributor.editorElfed Lewis
dc.date.accessioned2017-05-03T11:03:57Z
dc.date.available2017-05-03T11:03:57Z
dc.date.issued2011
dc.date.modified2012-08-09T22:50:30Z
dc.identifier.isbn9781424492886
dc.identifier.issn1930-0395
dc.identifier.doi10.1109/ICSENS.2011.6127036
dc.identifier.urihttp://hdl.handle.net/10072/46187
dc.description.abstractThis paper reports 3 axis accelerometer data transfer over a one meter underwater path at 10 cm depth using a 2400 bps optical wireless frequency shift keying (FSK) at very low frequency (VLF). The modulation frequencies used were 10 and 12 KHz. The prototype modem was designed and implemented for real time feedback for swimmers in the pool. The optical transmitter included an accelerometer unit with a microcontroller, the modulator and a detector circuit based on an integrated detector preamplifier (IDP). The cost of the components for the optical transmitter and receiver was less than AU$25. Range experiments were performed in air and underwater, with and without bubbles. The received data was error free for 1.3 m in air and for more than 1.1 m underwater without bubbles. The underwater range decreased to 70 cm with bubbles. The availability of the link between the wrist and head of a swimmer was approximately 50% and varied with the position of the wrist. This enables stroke rate data to be presented to the swimmer via a goggle mounted display.
dc.description.publicationstatusYes
dc.languageEnglish
dc.publisherIEEE Press
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofconferencename10th IEEE Conference on Sensors
dc.relation.ispartofconferencetitle2011 IEEE SENSORS
dc.relation.ispartofdatefrom2011-10-28
dc.relation.ispartofdateto2011-10-31
dc.relation.ispartoflocationLimerick, IRELAND
dc.relation.ispartofpagefrom258
dc.relation.ispartofpagefrom4 pages
dc.relation.ispartofpageto261
dc.relation.ispartofpageto4 pages
dc.rights.retentionY
dc.subject.fieldofresearchOptical fibre communication systems and technologies
dc.subject.fieldofresearchcode400605
dc.titleLow-cost short -range wireless optical FSK modem for swimmers feedback
dc.typeConference output
dc.type.descriptionE2 - Conferences (Non Refereed)
dc.type.codeE - Conference Publications
gro.facultyGriffith Sciences, Griffith School of Engineering
gro.date.issued2011
gro.hasfulltextNo Full Text
gro.griffith.authorThiel, David V.
gro.griffith.authorO'Keefe, Steven G.


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    Contains papers delivered by Griffith authors at national and international conferences.

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