Suggestion on UNI numbering scheme
tried @dral... now trying @dra1.
-------------Forwarded Message-----------------
From: LUNYCZ, 75030,3612
To: UNI Working Group, INTERNET:uniweb@dral.cpuc.ca.gov
Date: 7/7/98 1:23 PM
RE: Suggestion on UNI numbering scheme
Having read the March Report on Universal Node Identification, I wondered
if a global viewpoint might not be suitable.
I am proposing the use of DGPS (Differential GPS with accuracy down to
about 12 feet) to "mark" where a Metering Point is located (Universal Node
Identifier). Thus a unique site with longitude, latitude and altitude could
be used as an identifier that is independent of variables such as Country,
State, City, Customer, Load Name, Serial or Test numbers.
Such a unique key would also elliminate the dilema of who has a managing
database for issuance of the identifiers. The DGPS instrument would
generate this identifier.
Under the uimbrella of the UNI would lie the descriptive details that are
variables, and thus subject to revision.
A999 99 999 B999 99 999 99999 C999 where ...
A = One Direction (Longitude)
999 = degrees
99 = minutes
999 = seconds
B= Other Direction (Latitude)
999 = degrees
99 = minutes
999 = seconds
99999 = altitude in feet or metres
C999 = abbreviation for generic equipment counter (M999 or T999)
Example:
The first meter for a Metering Point would ALWAYS have a UNI of "N009 37
105 W237 23 177 000153 M001", even if it was replaced. Its measurement
details and role are in another field.
The first Current Transformer (CT) in a Metering Point would ALWAYS have a
UNI of "N009 37 105 W237 23 177 000153 T001", even if it was replaced. Its
phase and function (CT, VT or PT) are in another field.
The point here is that a third party (MSP) would be able to locate this
meter, under contract, and perform maintenance on it. If the meter or any
instrument transformers must be replaced, the UNI remains the same!
Regards,
Alex Lunycz
Ontario Hydro
Wholesale Revenue Metering Section
Phone 416-592-5517
FAX 416-592-5547
ALunycz@compuserve.com
.