[ILUG] [OT] Power Line communications ?
geoffm at straight-forward.com
Tue Jan 15 19:05:56 GMT 2002
There are numerous utilities (started in the US but I'm pretty sure it's
being trialled in UK too now) that are reading meters through several layers
of substation but (as I mentioned earlier) they're having to use "magical
DSP technology" and the data rates are measured more in bits per hour than
If you're reading someone's meter it doesn't matter that you're reading so
slowly 'cos you only read it once a month or less.
Straight Forward Solutions Ltd
Maynooth Road, Prosperous,
Naas, Co.Kildare, Ireland
Phone : +353 (0)45 892739
Fax : +353 (0)45 893880
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email : geoffm at straight-forward.com
> -----Original Message-----
> From: ilug-admin at linux.ie [mailto:ilug-admin at linux.ie]On Behalf Of Niall
> O Broin
> Sent: 15 January 2002 9:17 AM
> To: ilug at linux.ie
> Subject: Re: [ILUG] [OT] Power Line communications ?
> On Tue, Jan 15, 2002 at 04:13:21PM -0000, Declan Grady wrote:
> > Anyone know if this is feasible ?
> > www.ds2.es
> > 42 MBit/Sec over your power line ?
> > Makes very interesting reading, but I cant understand how it
> could work ..
> > surely it'd be like having every 'net user in the country on
> the one pieces
> > of thinnet ?
> I recently read an interesting article on this very topic (I
> thought it was
> in Wired but I looked in the only copy of Wired I have to hand
> and it wasn't
> there). Basically, as someone else mentioned, the big problem here is
> transformers which act as wonderful bandstop filters for the data
> The subject of the story had amanaged to convince some very heavy
> hitters in
> the U.S. that he had the transformer problem cracked. Despite the
> of his technological peers he managed to extract some serious money from
> various people, encouraged by said heavy hitters. Unfortunately
> the laws of
> physics had their evil way, as they do, and lots of people got pains in
> their hips.
> P.S. 42 MBit/Sec ? Isn't that very close to 45 MBit/Sec ?
> Remember when the
> last snake oil vendor tried to sell us that ?
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