Accession Number:

ADA499556

Title:

Designing an Ultrasonic Modem for Robotic Communications

Descriptive Note:

Final rept. Jan-Mar 2008

Corporate Author:

ARMY RESEARCH LAB CLEVELAND OH VEHICLE TECHNOLOGY DIRECTORATE

Personal Author(s):

Report Date:

2009-03-01

Pagination or Media Count:

26.0

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.

Subject Categories:

  • Computer Hardware
  • Acoustics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE