Two and three wire utility data communications system

Details Two and three wire utility data communications system Two and three wire utility data communications system

H - Electricity

04

L

H04L 5/14 (2006.01) G01D 4/00 (2006.01) G08C 17/04 (2006.01) G08C 19/28 (2006.01) H04M 11/00 (2006.01) H04Q 9/00 (2006.01)

Patent

CA 2043074

A two wire/three wire utility data communications system for remotely reading utility meter registers. In the two wire version, a hand-held reading unit is inductively coupled over two wires via a port located remotely from a meter register. Alternatively, a meter interface unit (MIU) may be connected directly to the register via three wires. Each register includes one or more wheel position encoders. An AC interrogation signal is applied by the reading unit to encoder circuitry at the meter which powers the circuitry and causes the position of each encoder wheel to be read. In the two wire mode, register display information (e.g. the current meter reading) is transmitted back to the reading unit by varying the load (impedance) presented by the register side of the circuit. This causes a corresponding variation of the amount of current drawn from the reading unit. The current-modulated signal is decoded by the reading unit and converted into a register reading. The system can also operate in a three wire mode and read older fourteen wire encoded registers. Other features include remote programmability of register characteristics, the ability to interrogate multiple registers which share a common data bus, verification of encoder wheel positions before accepting a reading, real-time flow rate/leak detection, pulse output, and the capability of reading compound meters (i.e. meters having two registers to separately measure high/low flow rates).

Affiliated with

Also associated with

Rating

Two and three wire utility data communications 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 Two and three wire utility data communications system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two and three wire utility data communications system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1916141