Designing an Ultrasonic Modem for Robotic Communications

Abstract

An ultrasonic modem is a device that can transmit information acoustically. One was designed for the 2008 FIRST Robotics League competition to provide short-range communications with the robot. The creation of this device was the result of a regulation that inhibited any use of electromagnetic-based communications technology in the competition. The ultrasonic modem consists of easily attainable and low-cost parts and was designed to attenuate ambient noise in the audible frequency domain and reliably send a 2-bit message at a rate of 10 Hz or higher. Each message referred to a high-level control command that the robot would perform.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2009
Accession Number
ADA499556

Entities

People

  • Justin Shumaker

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Autonomy
  • C4I

DTIC Thesaurus Topics

  • Acoustic Attenuation
  • Acoustic Phenomena
  • Acoustic Waves
  • Acoustics
  • Amplifiers
  • Circuits
  • Computer Programs
  • Demodulators
  • Frequency
  • Integrated Circuits
  • Laboratory Equipment
  • Military Research
  • Noise
  • Operational Amplifiers
  • Robots
  • Transducers
  • Waves

Readers

  • Radio communications and signal processing.
  • Robotics and Automation.
  • Systems Analysis and Design

Technology Areas

  • AI & ML
  • AI & ML - Autonomous Systems
  • Autonomy