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harish
Joined: 17 Jul 2004
Posts: 5
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 17 Jul 2004 21:51 power line carrier communication |
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I am engineer developing powerline communication systems for helping people in villages communicate via existing power lines.
Since I have no experience on the working of these systems
kindly send me circuit ideas and block diagrams to develop this system,. It's for a good cause.
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Google
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17 Jul 2004 21:51 Ads |
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flatulent
Joined: 19 Jul 2002
Posts: 4926
Helped: 328
Location: Middle Earth
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17 Jul 2004 21:58 Re: power line carrier communication |
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Since these wires are owned by the power distribution company or ministry, you should inquire of them about permission to use them and what frequency and power limitations you will be held to.
In Europe there are very extensive regulations on this method of communication and there exist commercially made ICs for this purpose.
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House_Cat
Joined: 21 Feb 2002
Posts: 1507
Helped: 308
Location: USA
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17 Jul 2004 22:09 Re: power line carrier communication |
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An internet search using "power line communication" and "power line voice communication" will give you a lot of information.
Two companies with off-the-shelf products are:
http://www.enikia.com/
http://focus.ti.com/docs/apps/catalog/resources/blockdiagram.jhtml?bdId=638
As Flatulent points out - the power lines are not public property in the sense that you can use them as you please. You need permission.
Furthermore, most of today's powerline communication methods involve high frequency up to ultra high frequency RF that can interfere with other systems including firefighting, emergency medical, military, etc. You need to talk with your local service providers and see what their concerns might be.
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Ozonehole2k
Joined: 25 Mar 2004
Posts: 31
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18 Jul 2004 8:42 Re: power line carrier communication |
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Interference is a very major problem. In fact, many trials in US had to be cut short due to this. In US, the amateur radio operators were the bunch that most affected. In the developing country, this part of spectrum can be the vital link between the villages. So double check before going ahead.
hxxp://www.arrl.org/news/stories/2004/06/28/2/?nc=1
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delay
Joined: 11 Jun 2004
Posts: 219
Helped: 3
Location: Van Allen Belt
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20 Aug 2004 21:05 Re: power line carrier communication |
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| You can get ideas from HomePlug company.
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