Portable MP3 player as low-cost data logger

Detalhes bibliográficos
Autor(a) principal: De Lucena, Samuel E. [UNESP]
Data de Publicação: 2009
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/227069
Resumo: Non-audio signals have been recorded in the flash ROM memory of a portable MP3 player, in WAV format file, to examine the possibility of using these cheap and small instruments as general-purpose portable data loggers. A 1200-Hz FM carrier modulated by the non-audio signal has replaced the microphone signal, while using the REC operating mode of the MP3 player, which triggers the voice recording function. The signal recovery was carried out by a PLL-based FM demodulator whose input is the FM signal captured in the coil leads of the MP3 player's earphone. Sinusoidal and electrocardiogram signals have been used in the system evaluation. Although the quality of low frequency signals needs improvement, overall the results indicate the viability of the proposal. Suggestions are made for improvements and extensions of the work.
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spelling Portable MP3 player as low-cost data loggerData loggerECGMP3 playerNon-audio signals have been recorded in the flash ROM memory of a portable MP3 player, in WAV format file, to examine the possibility of using these cheap and small instruments as general-purpose portable data loggers. A 1200-Hz FM carrier modulated by the non-audio signal has replaced the microphone signal, while using the REC operating mode of the MP3 player, which triggers the voice recording function. The signal recovery was carried out by a PLL-based FM demodulator whose input is the FM signal captured in the coil leads of the MP3 player's earphone. Sinusoidal and electrocardiogram signals have been used in the system evaluation. Although the quality of low frequency signals needs improvement, overall the results indicate the viability of the proposal. Suggestions are made for improvements and extensions of the work.UNESP - São Paulo State University Department of Electrical Engineering Microprocessors and Instrumentation Laboratory, GuaratinguetáUNESP - São Paulo State University Department of Electrical Engineering Microprocessors and Instrumentation Laboratory, GuaratinguetáUniversidade Estadual Paulista (UNESP)De Lucena, Samuel E. [UNESP]2022-04-29T06:25:22Z2022-04-29T06:25:22Z2009-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject1425-142819th IMEKO World Congress 2009, v. 3, p. 1425-1428.http://hdl.handle.net/11449/2270692-s2.0-84871531719Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPeng19th IMEKO World Congress 2009info:eu-repo/semantics/openAccess2024-07-01T20:12:34Zoai:repositorio.unesp.br:11449/227069Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:30:20.785696Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Portable MP3 player as low-cost data logger
title Portable MP3 player as low-cost data logger
spellingShingle Portable MP3 player as low-cost data logger
De Lucena, Samuel E. [UNESP]
Data logger
ECG
MP3 player
title_short Portable MP3 player as low-cost data logger
title_full Portable MP3 player as low-cost data logger
title_fullStr Portable MP3 player as low-cost data logger
title_full_unstemmed Portable MP3 player as low-cost data logger
title_sort Portable MP3 player as low-cost data logger
author De Lucena, Samuel E. [UNESP]
author_facet De Lucena, Samuel E. [UNESP]
author_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv De Lucena, Samuel E. [UNESP]
dc.subject.por.fl_str_mv Data logger
ECG
MP3 player
topic Data logger
ECG
MP3 player
description Non-audio signals have been recorded in the flash ROM memory of a portable MP3 player, in WAV format file, to examine the possibility of using these cheap and small instruments as general-purpose portable data loggers. A 1200-Hz FM carrier modulated by the non-audio signal has replaced the microphone signal, while using the REC operating mode of the MP3 player, which triggers the voice recording function. The signal recovery was carried out by a PLL-based FM demodulator whose input is the FM signal captured in the coil leads of the MP3 player's earphone. Sinusoidal and electrocardiogram signals have been used in the system evaluation. Although the quality of low frequency signals needs improvement, overall the results indicate the viability of the proposal. Suggestions are made for improvements and extensions of the work.
publishDate 2009
dc.date.none.fl_str_mv 2009-12-01
2022-04-29T06:25:22Z
2022-04-29T06:25:22Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv 19th IMEKO World Congress 2009, v. 3, p. 1425-1428.
http://hdl.handle.net/11449/227069
2-s2.0-84871531719
identifier_str_mv 19th IMEKO World Congress 2009, v. 3, p. 1425-1428.
2-s2.0-84871531719
url http://hdl.handle.net/11449/227069
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 19th IMEKO World Congress 2009
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1425-1428
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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