House project - home automation
I come to a stage in house building where I intend to design and add some automation around the house. I've come searching many different solutions and seen that very few reliable solutions are available. A home automation can rely either on special data bus or PLC (power line communication) or even on both. Of course, one must search for simplicity in every aspect of life, therefore here PLC should be the winner...
For starter, X10 technology pops-up from any web search. The upside is that one can use power cabling to send commands to devices and there is no need for special cabling or routing. There is a filter to be installed at the power entrance so to reject any X10 command from or to outside the house and from here you can use any kind of device like bulb adapter, socket adapter or switch adapter to regulate light, appliances, etc. Moreover, there are security systems, doors, garage doors, blinders etc that can communicate over X10. The solution is appealing also for low cost involved over great flexibility. Intelligent devices can even run scripts. Also a wireless adapter can be used to collect commands from wireless remote controls.
The downside of X10 is it's communication protocol that does not exceed 50bps and often is not reliable, generating such problems as lag times, missed commands, etc. For more info look at http://www.x10europe.com.
I also found a local company building devices for home automation but they lack 2 things: the design of the products is not eye catching at all and they require a 4 wire phone cable to be deployed along the electrical circuits. Check them at http://www.ibs.ro
While searching more I could find better automation solutions such as KNX (http://www.knx.org/) standard that is based on use of actuators. Now the installation of this kind of home automation is more professional as all executing devices (actuators) reside in the power panel and it is more easy to connect all with a single bus that can reach higer speeds such as 9600bps. The catch is that one needs to do separate cabling for every circuit likely to be an automation candidate. So if you have more than one lighting system in a room, you need to design and execute separate cabling from power panel to that room. Therefore simplicity is lost and costs are boosted even more. You can really think this would be a solution only for new houses not for old ones. Even me, as I am building a new house, I am not convinced to redo the cabling system based mainly on 2 reasons: first the team of electricians installing the cabling will not understand what to do and second, I am not able to make a design to such an system by myself and there is no company or provider here to help me in a professional way.
Another solution is based on a standard named Lonworks (http://www.echelon.com/solutions/home/default.htm) and I found a solution provider near me able to assist. It supports communication over power line as X10 does (and KNX to be fair) but looks for me this is a better standard for what I am looking for. I will submit more comments after I meet this company and reach a decision. House
Sunday, August 12, 2007 10:04:29 PM (GTB Daylight Time, UTC+03:00)
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