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Title: Infrared system for monitoring movement of objects

Abstract

A system for monitoring moving objects, such as the flight of honeybees and other insects, using a pulsed laser light source. This system has a self-powered micro-miniaturized transmitting unit powered, in the preferred embodiment, with an array solar cells. This transmitting unit is attached to the object to be monitored. These solar cells provide current to a storage energy capacitor to produce, for example, five volts for the operation of the transmitter. In the simplest embodiment, the voltage on the capacitor operates a pulse generator to provide a pulsed energizing signal to one or more very small laser diodes. The pulsed light is then received at a receiving base station using substantially standard means which converts the light to an electrical signal for processing in a microprocessor to create the information as to the movement of the object. In the case of a unit for monitoring honeybees and other insects, the transmitting unit weighs less than 50 mg, and has a size no larger than 1.times.3.times.5 millimeters. Also, the preferred embodiment provides for the coding of the light to uniquely identify the particular transmitting unit that is being monitored. A "wake-up" circuit is provided in the preferred embodiment whereby theremore » is no transmission until the voltage on the capacitor has exceeded a pre-set threshold. Various other uses of the motion-detection system are described.« less

Inventors:
 [1];  [2];  [2]
  1. San Diego, CA
  2. Knoxville, TN
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
867797
Patent Number(s):
US 5012113
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
infrared; monitoring; movement; moving; flight; honeybees; insects; pulsed; laser; light; source; self-powered; micro-miniaturized; transmitting; unit; powered; preferred; embodiment; array; solar; cells; attached; monitored; provide; current; storage; energy; capacitor; produce; example; five; volts; operation; transmitter; simplest; voltage; operates; pulse; generator; energizing; signal; diodes; received; receiving; base; station; substantially; standard; means; converts; electrical; processing; microprocessor; create; information; weighs; 50; mg; size; larger; times; millimeters; provides; coding; uniquely; identify; particular; wake-up; circuit; provided; whereby; transmission; exceeded; pre-set; threshold; various; motion-detection; described; base station; pulsed light; laser diodes; pulse generator; electrical signal; light source; solar cell; preferred embodiment; laser light; solar cells; pulsed laser; laser diode; uniquely identify; embodiment provides; set threshold; /250/136/359/372/

Citation Formats

Valentine, Kenneth H, Falter, Diedre D, and Falter, Kelly G. Infrared system for monitoring movement of objects. United States: N. p., 1991. Web.
Valentine, Kenneth H, Falter, Diedre D, & Falter, Kelly G. Infrared system for monitoring movement of objects. United States.
Valentine, Kenneth H, Falter, Diedre D, and Falter, Kelly G. 1991. "Infrared system for monitoring movement of objects". United States. https://www.osti.gov/servlets/purl/867797.
@article{osti_867797,
title = {Infrared system for monitoring movement of objects},
author = {Valentine, Kenneth H and Falter, Diedre D and Falter, Kelly G},
abstractNote = {A system for monitoring moving objects, such as the flight of honeybees and other insects, using a pulsed laser light source. This system has a self-powered micro-miniaturized transmitting unit powered, in the preferred embodiment, with an array solar cells. This transmitting unit is attached to the object to be monitored. These solar cells provide current to a storage energy capacitor to produce, for example, five volts for the operation of the transmitter. In the simplest embodiment, the voltage on the capacitor operates a pulse generator to provide a pulsed energizing signal to one or more very small laser diodes. The pulsed light is then received at a receiving base station using substantially standard means which converts the light to an electrical signal for processing in a microprocessor to create the information as to the movement of the object. In the case of a unit for monitoring honeybees and other insects, the transmitting unit weighs less than 50 mg, and has a size no larger than 1.times.3.times.5 millimeters. Also, the preferred embodiment provides for the coding of the light to uniquely identify the particular transmitting unit that is being monitored. A "wake-up" circuit is provided in the preferred embodiment whereby there is no transmission until the voltage on the capacitor has exceeded a pre-set threshold. Various other uses of the motion-detection system are described.},
doi = {},
url = {https://www.osti.gov/biblio/867797}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}