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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 印刷: 0040-2508
ISSN オンライン: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v56.i4-5.80
9 pages

Long-Term Storage Telemetry Digital System

Leonardo Badillo
Degree in electrical engineering from National Polytechnic Institute of Mexico, same institute in the area of communications and electronics
Volodymyr Ponomaryov
Instituto Politécnico Nacional, Mexico-city, Mexico
Walter Fonseca-Araujo
Cristina Juarez
National Polytechnic Institute of Mexico
Jose Luis Sanchez
National Polytechnic Institute of Mexico

要約

We develop hardware and software for a long-term storage telemetry digital system. The system can be used for storing digitally in PCMCIA ATA flash memory card 33 analog channel data during several hours at low sample rate. The system is a portable unit powered by battery and contains 33 analog to digital converter, C/C++ programmable micro controller and PCMCIA memory. The proposed system could be reinstalled for up to 66 channels. The implemented unit is lightweight (about 1 pound). The unit records, converts, and stores the electric signals from sensors during the equipment operation. Some time after the flash memory will be downloaded at a commercial PC or a portable computer in a laboratory for diagnostic purposes. To optimize the memory available we used the compression technique based in wavelet functions.


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