Discriminating ultrasonic proximity detection system
Abstract
This invention uses an ultrasonic transmitter and receiver and a microprocessor to detect the presence of an object. In the reset mode the invention uses a plurality of echoes from each ultrasonic burst to create a reference table of the echo-burst-signature of the empty monitored environment. The invention then processes the reference table so that it only uses the most reliable data. In the detection mode the invention compares the echo-burst-signature of the present environment with the reference table, detecting an object if there is a consistent difference between the echo-burst-signature of the empty monitored environment recorded in the reference table and the echo-burst-signature of the present environment.
- Inventors:
-
- Durango, CO
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 866832
- Patent Number(s):
- 4800540
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- discriminating; ultrasonic; proximity; detection; transmitter; receiver; microprocessor; detect; presence; reset; mode; plurality; echoes; burst; create; reference; table; echo-burst-signature; empty; monitored; environment; processes; reliable; data; compares; detecting; consistent; difference; recorded; ultrasonic transmitter; proximity detection; detection mode; /367/
Citation Formats
Annala, Wayne C. Discriminating ultrasonic proximity detection system. United States: N. p., 1989.
Web.
Annala, Wayne C. Discriminating ultrasonic proximity detection system. United States.
Annala, Wayne C. Sun .
"Discriminating ultrasonic proximity detection system". United States. https://www.osti.gov/servlets/purl/866832.
@article{osti_866832,
title = {Discriminating ultrasonic proximity detection system},
author = {Annala, Wayne C},
abstractNote = {This invention uses an ultrasonic transmitter and receiver and a microprocessor to detect the presence of an object. In the reset mode the invention uses a plurality of echoes from each ultrasonic burst to create a reference table of the echo-burst-signature of the empty monitored environment. The invention then processes the reference table so that it only uses the most reliable data. In the detection mode the invention compares the echo-burst-signature of the present environment with the reference table, detecting an object if there is a consistent difference between the echo-burst-signature of the empty monitored environment recorded in the reference table and the echo-burst-signature of the present environment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}
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