Home Automation via Powerline (X10 Protocol)

[Macgyver]

How x10 works (http://www.smarthomeusa.com/info/x10theory/#theory).

In the US there's this X10 protocol they use for home automatic using power lines.  However, most x10 devices are only for 120V operations. 

Anybody here knows how to design X10 devices suitable for 220V/60Hz for the Philippines?

Maganda kung meron dito sa elab na makagawa ng prototype man lang and then we can build more technologies on top of it.  From simple hardware,  up to touch screen based or even browser based home automation control.

[akhen]

agree... when i saw some home automation gadgets na ginagamit sa U.S. naamaze ako kc sobrang layo n nya sa iniisip ko... im sure kaya yan ng pinoy...

[nucleus]

http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en012050

[webscatter]

Try mo isolation transformer....110:220

X10 nman ay merong zero-crossing techniques...kaya malamang pwede ang isolation....

[Co0LëT♥]

nice topic... sana merong circuit 

Theory:
X-10 transmissions are synchronized with the zero-crossings on the AC power line. By monitoring for the zero-crossings, X-10 devices know when to transmit or receive X-10 information. A binary ‘1’ is represented by a 1 ms long burst of 120 kHz, near the zero-crossing point of the AC. A binary zero is represented by the lack of the 120 kHz burst. The timing diagram is as shown below.

[webscatter]

nice topic... sana merong circuit 

Theory:
X-10 transmissions are synchronized with the zero-crossings on the AC power line. By monitoring for the zero-crossings, X-10 devices know when to transmit or receive X-10 information. A binary ‘1’ is represented by a 1 ms long burst of 120 kHz, near the zero-crossing point of the AC. A binary zero is represented by the lack of the 120 kHz burst. The timing diagram is as shown below.

coolet subukan mo isolation............yung toroidal type....

[nucleus]

http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en012050

andito po pala ang app note tungkol sa pagimplement ng X10 gamit ang pic microcontroller

[NanotecH]

before x10 (back in the 80s) meron ng ginagamit yung iba pero DIY, nakikita ko na dati sa Popular Electronics.  gamit yung LM555 at LM567.  i think merong project ang alexan na LMs ang ginamit. meron akong project dati na ganyang ang concept pero 90s pa yun at di ko na rin naituloy.

yung iba ginagamit as reference yang sa app note ng microchip.

sa implementation nyan, puedeng gawing 220v pero transformerless.  kung gagamitan ng isolation xformer kailangan pa rin yung signal dumaan sa AC mains.

[Macgyver]

andito po pala ang app note tungkol sa pagimplement ng X10 gamit ang pic microcontroller

hmm... skimmed through the documnet... pang 120v lang eh.

[zer0w1ng]

The advantage of X10 is that there are readily available appliance and lights in the market that one could just plug and play without making any gadget.

The main problem of X10 is that there is no "feedback" or acknowledgement of the controlled device if it receives the control message.  This is susceptible to noise and missed commands.  This is fine with lights control for one could see a visual feedback and the user may just press again the switch to turn it on.

[glutnix_neo]

subscribing...

tama, lumang technology na ang X10, kasing tanda ko na yata.

[7_SeVeN_7]

agree ako kay sis zerowing, nakita ko nga din mga infos ng x10 at hinahanap ko yung acknowledgement/feedback/reply at wala akong nakita... at kahit si sis danica sinasabi nya na di reliable yung x10 kasi yun daw gamit sa bahay ng bf nya

[danny]

impakta ka talga sis 7 

seriously, nde reliable ang x10
trust me on this, there are times na it won't respond kahit nag
send ka na ng command. reason can be a lot of things
isa na dito pag madumi ang ac line mo
halimbawa may naka plug kang plantsa or TV
Yung panasonic na tv ng utol ko evrytime na naka turn on
nde gumagana ang x10 ko completely as in wala, badag, ayaw palpak
limited pa ang house code mo, obligado ka gumamit ng mga line filters  tsk tsk

[glutnix_neo]

SMPS and X10 do not mix,hehehe

pero for educational purposes ok na din pagaralan ang X10 kasi very simple sya.

[marcelino]

may nakita nga pala akong kit sa cdrking nito... around 3k din yung pair.

[danny]

may nakita nga pala akong kit sa cdrking nito... around 3k din yung pair.

si insomartin
parang na try na ata yung sa cdr king

[DigitalMind]

^ di ko nabuksan yung loob nung ethernet over powerline bridge. di naman nagdrodrop yung connection.
http://www.cdrking.com/?mod=products&type=view&sid=3299&main=50

[lightelectro]

Subscribing.

[Macgyver]

si insomartin
parang na try na ata yung sa cdr king

ang nakita ko lang sa cdrking is yung Power Over Ethernet (http://en.wikipedia.org/wiki/Power_over_Ethernet).  Basically using power lines for ethernet pero wala ata akong nakita sa cdrking na for home automation talaga.

[Macgyver]

impakta ka talga sis 7 

seriously, nde reliable ang x10
trust me on this, there are times na it won't respond kahit nag
send ka na ng command. reason can be a lot of things
isa na dito pag madumi ang ac line mo
halimbawa may naka plug kang plantsa or TV
Yung panasonic na tv ng utol ko evrytime na naka turn on
nde gumagana ang x10 ko completely as in wala, badag, ayaw palpak
limited pa ang house code mo, obligado ka gumamit ng mga line filters  tsk tsk

Ano na ba bago at better way for home automation?

Nakaka enganyo kasi itong X10 kasi ang mura nya sa US (http://www.x10.com/promotions/rca_kit_0605.html).  Di nga lang pwedeng gamitin dito.