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Thread: Indoor GPS

  1. #1
    Moderator toscal's Avatar
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    Default Indoor GPS

    This looks interesting for your HA system to know where you are.
    Seems to be an improvement over standard RFID technologies.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.
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  2. #2
    Automated Home Ninja Andrew Millne's Avatar
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    Old topic bump but this is very interesting. I'm looking forward to mainstream products that will allow accurate indoor tracking like this. There are so many increased applications for HA when specific people/things can be located.

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    Automated Home Legend chris_j_hunter's Avatar
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  4. #4
    Automated Home Ninja Andrew Millne's Avatar
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    Thanks Chris, I had missed that. Exciting times. I can see these included in the likes of the galaxy gear and fitbits being quite usable.

  5. #5
    Automated Home Ninja Andrew Millne's Avatar
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    Think I'm going to order a developer kit from estimote.com to have a play with this.

  6. #6
    Automated Home Legend chris_j_hunter's Avatar
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    Hi Andrew -

    ISTR you saying it had arrived - so, how'd it go ?? !

    Chris

  7. #7
    Automated Home Ninja Andrew Millne's Avatar
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    First impressions were pretty disappointing and with 3 beacons indoor location accuracy was poor to the point of not really useful for anything. Adding a 4th beacon considerably improves accuracy in a single room however and the SDK now includes a utility to calibrate for this purpose.

    https://www.youtube.com/watch?v=wtBERi7Lf3c

    I'm yet to attempt anything practical but getting usable x,y coordinates for HA is definitely possible

  8. #8
    Automated Home Legend chris_j_hunter's Avatar
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    interesting, thanks - the GPS in our car has problems when it sees less than four satellites, and seems better if there are at least five, six, even seven ...

    is battery-life an issue - presumably they'd be best powered of a convenient local module ?

  9. #9

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    Wow very interesting application, very useful for all of us.

  10. #10
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    I've been thinking about tracking people around the house to know where anyone is at one time...surely by sensing presence in the hall and then in the living room straight after the living room could have a occupancy counter incremented and the hall decremented for example? There would probably be some fine tuning of the process though otherwise you may get unrelated movement in two area conflicting with the logic....

    I am going through the motions of preparing to buy some heating related z-wave bits right now, with nothing in place yet and lighting will be coming later so am not sure on how this could be implemented but by following PIR triggers that are in quick succession you have a fairly good understanding of where people are right? Unless you have a party going on, then you'd just get disco lights lol

    I plan on running Domoticz on my NAS to start with (got it working ready via linux chroot to debian) but I haven't looked at underneath...I'm assuming a decent script could be created to populate a database entry of where people are at any given time though and this data could feed more scenes? Not sure how this presence data could be captured and reused but as it's a time based thing it may need to be catered for through seperate scenes to then provide (via a dummy device maybe?) the info needed for other scenes.

    Until I get into the nuts and bolts of scenes and custom scripting I have no idea how this ought to be implemented, all just assumptions for now....would it be do-able do you think?


    edit: Had a quick look at Lua scripting in Domoticz and you can access the database files for read/write from them, you can also check all device states...so in theory a table of associations for before and after PIR devices for entering any given space could be setup and used in a lua script to determine any given rooms occupancy, which in turn could be stored in the database too. Then all the basic lighting scripts could use this occupancy data to decide if lights need to be on or not. Would take some work but sounds like fun to me....I need to get this hardware ordered!!
    Last edited by kaivalagi; 26th November 2014 at 12:08 PM.

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