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General Purpose Alarm Device: A programmable annunciator.

Robert L Read1, Lawrence Kincheloe2, Forrest Lee Erickson1

  • 1Public Invention, 1709 Norris Dr., Austin, TX, 78704, United States of America.

Hardwarex
|December 16, 2024
PubMed
Summary
This summary is machine-generated.

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The General Purpose Alarm Device (GPAD) is an affordable, modular annunciator that enhances system monitoring and intervention. This versatile peripheral provides visual and auditory alerts with a programmable display for various engineering and scientific applications.

Area of Science:

  • Engineering
  • Computer Science
  • Medical Devices

Background:

  • Complex monitoring systems often require rapid human intervention.
  • Existing alarm systems can be costly and lack modularity.
  • The PolyVent open-source mechanical ventilator needs integrated alarm functionality.

Purpose of the Study:

  • To develop an inexpensive, general-purpose alarm device (GPAD) for diverse applications.
  • To create a modular annunciator that reduces system costs.
  • To provide a flexible peripheral for computer or microcontroller integration.

Main Methods:

  • Designed as a peripheral using Arduino Uno Atmega328 architecture.
  • Incorporated programmable 80-character display for textual information.
Keywords:
AlarmsArduinoMedical alarmsMonitoringSPIUno

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  • Enabled communication via USB (COM) or 5V SPI (RJ12 cable).
  • Developed firmware, API, and 3D printable enclosure.

    • Main Results:

    • The GPAD offers 5 alarm levels with escalating urgency (light, rhythm, frequency).
    • Features a mute button for user control.
    • Supports integration with various projects, machines, and instruments.
    • Demonstrated use case with the PolyVent ventilator.

    Conclusions:

    • The GPAD is a versatile and cost-effective solution for alarm notification.
    • Its modular design and extensibility (headers, shields) allow broad applicability.
    • Facilitates enhanced monitoring and intervention in numerous scientific and engineering fields.