Radiant energy – Radiant energy generation and sources
Patent
1989-04-28
1991-04-30
Berman, Jack I.
Radiant energy
Radiant energy generation and sources
250504R, 455609, 372 38, H04B 1004
Patent
active
050121138
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 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.
REFERENCES:
patent: 3478278 (1969-11-01), Muncheryan
patent: 3909745 (1975-09-01), Dye
patent: 4866285 (1989-09-01), Simms
Electro-Nuclear Laboratories, Inc., brochure, Nov. 1963.
G. M. Loper et al., "Detection & Monitoring of Honeybee Drone Congregation Areas by Radar," Apidologie, vol. 18(2), pp. 163-172 (1987).
D. Mascanzoni & H. Wallin, "The Harmonic Radar: A New Method of Tracing Insects in the Field," Ecological Entomology, vol. 11, pp. 387-390 (1986).
G. Abdian, "The Bees' Knees in Bar Code," ID Systems, vol. 8(8), pp. 20-26 (1988).
Falter Diedre D.
Falter Kelly G.
Valentine Kenneth H.
Berman Jack I.
Ericson Ivan L.
Martin Marietta Energy Systems Inc.
Spicer James M.
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