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Telemetry Design of a Vital Sign Recording System

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Abstract

Blood pressure, respiratory rate, body temperature, and pulse rate are vital signs that under certain pathological conditions require continuous monitoring. In this paper we present a novel design of a system that embeds these signals into a single waveform that can be transmitted without the need for time or frequency division multiplexing. The system depends on changing the frequency of a square wave oscillator. One signal with low frequency contents controls the On-time of the oscillator while the Off-time is controlled by another signal. The third and the fourth signals are used to control voltage controlled oscillators. The voltage controlled oscillators outputs are used as fluctuations during the On-time and during the Off-time. The main advantage of this system is the reduction in circuit complexity in both transmitter and receiver with accurate recovery of the transmitted signals. The design of the proposed system is presented in this paper along with all the corresponding simulations.

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Authors and Affiliations

  1. Biomedical Systems and Medical Informatics Department, Hijjawi Faculty for Engineering Technology, Yarmouk University, Irbid, Jordan

    Awad Al-Zaben

  2. Electronics Engineering Department, Hijjawi Faculty for Engineering Technology, Yarmouk University, Irbid, Jordan

    Saed N. Al-Refaie

  3. Electronics Engineering Department, Hijjawi Faculty for Engineering Technology, Yarmouk University, Irbid, Jordan

    Husam Hamad

Authors
  1. Awad Al-Zaben
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  2. Saed N. Al-Refaie
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  3. Husam Hamad
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Corresponding author

Correspondence to Awad Al-Zaben.

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Al-Zaben, A., Al-Refaie, S.N. & Hamad, H. Telemetry Design of a Vital Sign Recording System. J Med Syst 36, 1059–1063 (2012). https://doi.org/10.1007/s10916-010-9569-x

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  • DOI: https://doi.org/10.1007/s10916-010-9569-x

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