Method and apparatus for reducing radiation exposure through the use of infrared data transmission

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:867098

Austin, Frank S ^[1]; Hance, Albert B ^[2]

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1. Schaghticoke, NY
2. Schenectady, NY

A method and apparatus is described for transmitting information, for exae, dosimetry data from a hazardous environment such as a radioactive area to a remote relatively safe location. A radiation detector senses the radiation and generates an electrical signal which is fed as a binary coded decimal signal to an infrared transmitter having a microprocessor. The microprocessor formats the detected information into digits of data and modulates a 40 kHz oscillator, the output of which is fed to and intensity modulates one or more infrared emitting diodes. The infrared signal from the diodes is transmitted to a portable hand-held infrared receiver remote from the hazardous environment. The receiver includes an infrared sensitive diode which decodes the data and generates an electrical signal which is coupled to a microcomputer. The microcomputer synchronizes itself to the transmitter, reads the digits of data as they are received, sums the digits and compares the sum with a checksum signal generated and transmitted from the transmitter. If a match of the checksum signals exists, the received data is displayed, otherwise it is described and the receiver conditions itself for the next transmission of data.

• Research Organization: Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY (United States)
• DOE Contract Number: AC12-76SN00052
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 4864652
• OSTI ID: 867098
• Country of Publication: United States
• Language: English

Related Subjects

method
apparatus
reducing
radiation
exposure
infrared
data
transmission
described
transmitting
information
exae
dosimetry
hazardous
environment
radioactive
remote
relatively
safe
location
detector
senses
generates
electrical
signal
fed
binary
coded
decimal
transmitter
microprocessor
formats
detected
digits
modulates
40
khz
oscillator
output
intensity
emitting
diodes
transmitted
portable
hand-held
receiver
sensitive
diode
decodes
coupled
microcomputer
synchronizes
reads
received
sums
compares
checksum
generated
match
signals
exists
displayed
otherwise
conditions
emitting diodes
emitting diode
data transmission
electrical signal
radiation detector
signal generated
radiation exposure
received data
binary coded
infrared emitting
reducing radiation
coded decimal
hazardous environment
/359/