Telemetry access arrangement

Details Telemetry access arrangement Telemetry access arrangement

1992-08-31

1993-09-07

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Remote indication over telephone line

379 92, H04M 1100

Patent

active

052436446

ABSTRACT:
This invention relates to a method and apparatus for accessing customer meters and for controlling customer devices over a telephone line. A suppressed ringing connection is established over a customer line between a central office and customer station equipment. The connection is between a data accessing device such as a meter reading controller and a customer premises device such as a meter interface unit. Signals are exchanged over the connection between these two units without alerting the customer via a ringing signal and without changing the supervisory state of the customer's station equipment from on-hook. The connection can also be used for controlling devices such as air conditioning units, in order, for example, to avoid overloads in a power distribution system. The voice switching network of the central office is used for making the connection between the meter control unit and the meter interface unit. Advantageously, this arrangement can allow a large number of utility meters and controlling devices to be accessed remotely using existing telephone plant.

REFERENCES:
patent: Re29499 (1977-12-01), Spencer
patent: 3868640 (1975-02-01), Binnie et al.
patent: 3899639 (1975-08-01), Cleveley et al.
patent: 3922492 (1975-11-01), Lumsden
patent: 4008458 (1977-02-01), Wensley
patent: 4646342 (1987-02-01), Hargrave et al.
patent: 4691344 (1987-09-01), Brown et al.
patent: 4804957 (1989-02-01), Selph et al.
patent: 4850010 (1989-07-01), Stanbury et al.
patent: 4856047 (1989-08-01), Saunders
patent: 5189694 (1993-02-01), Garland
M. Kurachi et al., "New Telecommunications Service for Telemetering", International Conference On Computer Communication, Nov. 1984, pp. 219-223.
F. Kruger, "TEMEX erschliesst neue Markte", Net-Nachrichten Elektronik Und Telematik, vol. 42, No. 5, May 1988, pp. 212-216.
K. Kanai et al., "Automatic Remote Meter Reading System," Japan Telecommunication Review, Oct. 1979, pp. 378-384.
C. Cohn, "Computer Reads On-location Meters By Using No-ring Phone Circuits On Existing Lines," Electronic, Jan. 27, 1983, pp. 71, 72.
K. Shirai et al., "Remote Automatic Meter Reading and Telecontrol System Using Telephone Lines," NEC Research & Development, No. 65, Apr. 1982, pp. 82-92.
"Introduction to Off-Talk Communication Services", Steve Nakanishi, FTEL, Paris, Nov. 13-14, 1989.
Ameritech Technical Reference, AM TR-MKT-000035, Ameritech Standard, Issue 1, Mar. 1989, "Automatic Meter Reading Services Interface Specifications".
M. Suzuki, "Automatic Meter Reading At Tokyo Gas," Proceedings, Automatic Meter Reading Association, 4th Annual Symposium, Boston, Sep. 22-27, 1991, pp. 97-104.

Affiliated with

Also associated with

Rating

Telemetry access arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-493860