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Motion Detection Scenes


ahmad89

Question

Hello,

I had sent the following email to Fibaro support and it has been several days and I am yet to get a response...

"Hello,

Please try to give a quick reply to this enquiry since it is urgent.

I have a customer with a big home that he wants to turn.smart and we will be using fibaro.

There will be 2 HC2 in master slave mode with 60 relays and 15 dimmers for light control and 20 wall plugs all fibaro modules, in addition there will be around 38 fibaro motion sensors and we want to set up scenes for light switching on based on motion in halls and and when it is gone it would turn off the lights.

My question is that would the system handle the load of such scenes? And what does fibaro recommend?

This is very essential and i need a stable solution.

Regards,"

Anyone here can help give advice about that? I want to know the system limitations in that regards.

Thanks in advance...

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Hello i dont see much problems in this setup, i have made installations with more nodes and more hc2.

Your Scenes seems not so problematic i think you can work basically in block scenes.

Good luck and try again on Fibaro support

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  • Inquirer
  • Hello,

    Thank you for the reply...

    I have sent fibaro support more than 5 reminders now, one each day since i labeled this as urgent and still no reply from them.

    Fibaro's support is extremely slow not to mention the bad english skills and inability to understand basic questions.

    So from your own personal experience it is possible to have such a network setup? And there would be no delay or system issues?

    I cannot use block scenes because the motion detection needs to trigger the lights on but then turn them off after a certain time from the last motion detected, i have the script for this but i was just wondering if 38 such scripts running at the same time would cause issues or not.

    Regards

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    I see absolutely no problems in handling that load... It is less than 150 nodes... One HC2 should be able to handle 250 devices!

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  • Thank you for the reply..

    Yes i know the node number is okay, but my concern here is the number scenes looping continuously with timers for motion detection, i have not had so many on an HC2 before so i am afraid of lag and such.

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    Why would you need looping? The devices should just be listed as triggers. Then the scenes only need to run when there is motion.

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  • Yes the motion sensor would trigger the lights on when it is breached but i need the lights to go off after a certain time (typically 3 mins) from the last motion detection so to do so i set a loop that keeps resetting the time each time motion is detected the loop only ends when the timer passes without any motion breach.

    I hope i made that clear and if you have a more efficient way to do tgis let me know.

    Thanks and regards

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    I sometimes have 15 scenes running simultaneously without issues. 4 or 5 of these will control dimmers in much the same way as you are describing and I don't experience any lag. The question is how many scenes you expect to be running simultaneously? If it is 80, then you might see a constraint, but if it is only 10 to 15 I wouldn't be worried.

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  • Thanks for sharing your experience, it is much appreciated.

    The source of my concern is that i had a single scene as i described and when the relay went dead it would lag the whole system, my fear is that what happens if more than one does that...

    And i dunno about how many scenes would be running at the same ttime since the home is big, 1000 sq meters, so some one walking from outside into room and through the halls might trigger a good number of motion sensors as he passes...

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    Why not associate some of the relays directly with sensors (set parameter 6 to the minimum 'on' time). The sensor handles the timing, only switching off the load after the set period of inactivity. No need for scenes in most simple cases, reducing processor load on the HC2.

    I've got a sensor controlling a couple of LED strip-lights via a Fibaro relay in the garage and it works fine. I can still control the lights remotely if required.

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  • Thank you for the reply, this is quite interesting, can you please elaborate more? The scene was the suggestion of Fibaro support i did not know you can control directly from.the motion sensor, i know abour association but not that you can set timers to trigger off, please explain more if you can.

    Thanks and regards,

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    The Fibaro motion sensor Parameter 6 controls how long the 'on' period lasts for.

    This is parameter 6 in a long list of possible tweaks. The default setting is 30 seconds which is how I've left mine as its long enough for my single garage. In a hall or corridor you will need to extend the time. Enter 180 secs, save it and then wake up the sensor to accept the new setting, or just let it do it next time it wakes up. There are quite a few settings so it may take some experimentation to get everything working right for your situation.

    Up to 5 devices [HC2=1] in the first association group will be sent an 'on' followed by an 'off' n seconds after the last movement. No scenes required. You can still trigger other scenes from the sensor or remotely turn the light on if required. The only down side I can see is that if you want the light(s) to stay on all the time, they won't because the sensor will turn them off n seconds after any new movement ceases but this is not a problem in my case.

    For the above to work also parameter 12 should be set to send 'on' AND 'off' frames in the Basic Command Class, again this is the default I believe.

    Hope this helps :->

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  • Thank you very much Colin this is perfect!!!

    [ Added: 2014-06-14, 17:26 ]

    One more thing please since i am yet to get a fibaro motion sensor, are you aware of any Similar parameter in other motion sensors compatible with HC2 like aeon labs multisensor for example?

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