Single transmission line data acquisition system
Abstract
A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensors monitor specific process variables and transmit measurement values over the single transmission line to a master station when addressed by the master station. Power for all remote stations (up to 980) is provided by driving the line with constant voltage supplied from the master station and automatically maintained independent of the number of remote stations directly connected to the line. The transmission line can be an RG-62 coaxial cable with lengths up to about 10,000 feet with branches up to 500 feet. The remote stations can be attached randomly along the line. The remote stations can be scanned at rates up to 980 channels/second.
- Inventors:
-
- Morgantown, WV
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 865025
- Patent Number(s):
- 4451826
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G08 - SIGNALLING G08C - TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04Q - SELECTING
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- single; transmission; line; data; acquisition; interrogated; multiple; channel; provided; plurality; remote; station; sensors; monitor; specific; process; variables; transmit; measurement; values; master; addressed; power; stations; 980; driving; constant; voltage; supplied; automatically; maintained; independent; directly; connected; rg-62; coaxial; cable; lengths; 10; 000; feet; branches; 500; attached; randomly; scanned; rates; channels; single transmission; remote station; multiple channel; data acquisition; transmission line; coaxial cable; process variable; constant voltage; directly connected; channel data; voltage supplied; sensors monitor; specific process; measurement values; line interrogated; interrogated multiple; process variables; /340/
Citation Formats
Fasching, George E. Single transmission line data acquisition system. United States: N. p., 1984.
Web.
Fasching, George E. Single transmission line data acquisition system. United States.
Fasching, George E. Sun .
"Single transmission line data acquisition system". United States. https://www.osti.gov/servlets/purl/865025.
@article{osti_865025,
title = {Single transmission line data acquisition system},
author = {Fasching, George E},
abstractNote = {A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensors monitor specific process variables and transmit measurement values over the single transmission line to a master station when addressed by the master station. Power for all remote stations (up to 980) is provided by driving the line with constant voltage supplied from the master station and automatically maintained independent of the number of remote stations directly connected to the line. The transmission line can be an RG-62 coaxial cable with lengths up to about 10,000 feet with branches up to 500 feet. The remote stations can be attached randomly along the line. The remote stations can be scanned at rates up to 980 channels/second.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1984},
month = {Sun Jan 01 00:00:00 EST 1984}
}