Data transmission system

Details Data transmission system Data transmission system

1993-11-15

1996-05-07

Lobo, Ian J.

Communications: electrical

Wellbore telemetering or control

Selective control of subsurface equipment

3408531, 3408549, 3408554, G01V 140

Patent

active

055150381

ABSTRACT:
A data transmission system which may be used in any industrial installation in which an A.C. powered device is remotely located and in which it is desired (i) to monitor certain parameters, and/or (ii) to control certain operational functions at the remote site. The power cable used to carry A.C. power to the remotely operating device is also used to carry instrumentation, communication, and control signals from the local control and readout equipment located at the surface to an instrumentation and control package installed at the remote site in the down-hole location. The present invention comprises means for the simultaneous bidirectional transmission of digital data between the local and remote sites by means of a modulated D.C. loop current to thereby accomplish the required monitoring and control functions.

REFERENCES:
patent: 2749512 (1956-06-01), Blair
patent: 3284669 (1966-11-01), Boyd et al.
patent: 3340500 (1967-09-01), Boyd et al.
patent: 3406359 (1968-10-01), Welz et al.
patent: 3445658 (1969-05-01), Ward
patent: 3465239 (1969-09-01), Wilson et al.
patent: 3495212 (1970-02-01), Brock
patent: 3514754 (1970-05-01), Pritchett et al.
patent: 3718194 (1973-02-01), Hering et al.
patent: 3875506 (1975-04-01), Cath et al.
patent: 3991611 (1976-11-01), Marshall et al.
patent: 4093936 (1978-06-01), Eberline et al.
patent: 4117397 (1978-09-01), Fukao et al.
patent: 4136327 (1979-01-01), Flanders et al.
patent: 4157535 (1979-06-01), Balkanli
patent: 4178579 (1979-12-01), McGibbeney et al.
patent: 4301399 (1981-11-01), Miller et al.
patent: 4340853 (1982-07-01), Braun et al.
patent: 4415895 (1983-11-01), Flagg
patent: 4523194 (1985-06-01), Hyde
patent: 4631535 (1986-12-01), Butlin
patent: 4689620 (1987-08-01), Wondrak
patent: 4901070 (1990-02-01), VanDiver et al.
Search Report for Application No. GB 94230947.1, 3 Jan. 1995.

Affiliated with

Also associated with

Rating

Data transmission system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data transmission system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1230157