[sudo-access] RFID & Auto Door Opener?
dkeenan44 at gmail.com
Mon Jan 16 12:23:38 PST 2017
Ps. If after reviewing opener requirements, a DIY system seemed a bridge
too far for whatever reason, a fallback middle ground may be to purchase
the mechanism directly from the manufacturer if we can and self-install,
provided Jake / access group might be willing to do so. This would roughly
halve the price (~$1500, rather than $2800)... I don't know how that would
impact the warranty, and I'm sure would not include any post-install
maintenance/service but it's worth thinking considering as a fallback -
On Mon, Jan 16, 2017 at 12:15 PM, David Keenan <dkeenan44 at gmail.com> wrote:
> Awesome jake! Thanks for writing back and for all you and the access group
> are doing. Roger that re: not cc'ing building list -- after this message,
> I'll un-cc that list.
> Yes, IMO to save time, RFID'ing the front door directly at this point is
> probably worth doing, rather than piloting a mechanism first in the Omni
> Office or similar -- but I'd leave that to your/access group's best
> I remember hearing about that wheelchair motor -- if it's the same one,
> last I heard Robb had wanted to use it to raise/lower a projection screen
> for the stage..? So I didn't think of it for this project, but if we can
> use it and save ourselves some money, that's great!
> I realize you may have already considered this aspect but as a DIY opener
> will also need to comply with code requirements, do you think you can
> design a system measurably compliant with:
> - opening / closing force (<5lb) and speed (max. *N* seconds to close)
> requirements throughout the swing, during automatic operation and manual
> operation per ANSI/BHMA A156.19 for low-energy-operated doors, ICC A117.1,
> ADA and whatever may be found in CBC?
> - req'd UPS / backup battery power for opener, for *N* many operations
> (need to look it up)
> - compliant location of upper and lower door actuators (buttons), assume
> this will be no issue
> If it's helpful, here is a decent article I found that glosses the subject
> of codes for low-energy openers:
> Given the above, and I realize I only now just brought this up to you, but
> I guess my only concern about any DIY implementation is, if you / access
> group has the time to implement it relatively soon..? E.g., do you think it
> might be possible to complete in the next 2-3 weeks or so..?
> I realize perhaps that is an unfair question to ask before you've really
> started hacking on it, but I'm also trying to be realistic and pragmatic
> wrt to how busy everyone is and the understandably extended timelines of
> volunteer labor in general that comprises the bulk of omni efforts --
> If after reviewing the door req's, you think a DIY system is doable in the
> next 2-3 wks, let me know how / when I can help hack on this and I will
> follow up with you and access control group directly -- and perhaps we can
> set a date to meet up about it?
> On Mon, Jan 16, 2017 at 12:20 AM, Maureen Muldavin <muldavin.m at gmail.com>
>> If you are working on RFID cards any possibility that the entrance to
>> sudo/ccl could get a card reader? Been wanting access control for
>> On Sun, Jan 15, 2017 at 11:46 PM, Jake <jake at spaz.org> wrote:
>> > i brought in a wheelchair motor a while ago that I think could be made
>> > a
>> > power door-opener pretty well.
>> > I can work on a proof-of-concept for that and then be able to show you
>> > I
>> > mean, and then we can see if it will be good enough for our needs as
>> > to
>> > spending $2800 on a "proper" door opener.
>> > as for the RFID cards, Alex and I have been working on implementing the
>> > reader thing for a little while and I think I can add it to the front
>> > pretty relatively easily.., and I guess i'll do that first, rather than
>> > trying
>> > to do a storage closet first?
>> > as always, if anyone wants to participate in this process they should
>> > definitely jump in, otherwise it's subject to my chaotic schedule.
>> > technical questions about making this happen should be sent to the
>> > list
>> > and possibly the sudoroom list, but probably not the building list as it
>> > will
>> > be a major distraction if we get into the weeds of microcontroller
>> > and
>> > door server code...
>> > also, yes I do have the box of RFID stuff you ordered and i've been
>> > on
>> > it~
>> > -jake
>> > On Sun, 15 Jan 2017, David Keenan wrote:
>> >> Hi Jake / access control folks -
>> >> So now that our front door is publicly labelled as accessible, we need
>> >> install an automatic door opener & remote button (kickplate &
>> >> or a long bar) to make it legal.
>> >> Reason I bring this up to you guys is, the opener system will need to
>> >> integrate into our existing/future access control somehow. The quote I
>> >> is $2800 (50% parts, 50% labor) for a package including the Open Sesame
>> >> Model 233 (brochure
>> >> <http://www.opensesamedoor.com/index_htm_files/open_sesame_
>> >> spec
>> >> sheet <http://www.opensesamedoor.com/index_htm_files/specs_model23
>> >> made in San Leandro.
>> >> Also, some of us met last week re: sketching out Omni's accessibility
>> >> plan,
>> >> and Yar suggested this might be a good time to also implement RFID
>> >> for the front door, if that was possible? In part because, proximity
>> to an
>> >> RFID fob is more accessible than a card swipe which (after thinking
>> >> it) I realized requires a pincing motion that is likely not ADA...
>> >> of the excessive door opening pressure and iffy slope on the front
>> >> landing,
>> >> we need an RFID & auto-opener.
>> >> So -- I'm not sure if any more work has been done on the RFID systems I
>> >> put
>> >> in sudo a little while ago (stashed in under-stair storage area),
>> might it
>> >> be possible to integrate these into the door opener? I note in the
>> >> brochure
>> >> they offer a keypad access option - perhaps an opportunity for 2-factor
>> >> authentication like Marc had talked about? Anyhow what do you guys
>> >> I apologize for not helping y'all more with a better access control
>> >> (helping spaces post-ghostship consumed my bandwidth), but as there is
>> >> renewed pressure I want to help as I can. Would installing a trial
>> >> RFID/throw on the Omni Office for example still be helpful towards
>> >> this nailed down? Lmk
>> >> Fwiw - I see the opener as pressing at this point not just 'cause its
>> >> overdue, but because every day our front door is labelled as accessible
>> >> when it's technically not, is actually a not-insignificant liability
>> >> (accessibility lawsuit). Plus of course, we are still under scrutiny by
>> >> the
>> >> city, nimby neighbors trying to call us out for bogus reasons, etc etc.
>> >> And
>> >> per building code the front door must be made fully accessible before
>> >> other accessibility work starts on the rest of the building - at some
>> >> point
>> >> an inspector's gonna notice since they all go through that
>> >> Let me know how myself & those of us working on accessibility might be
>> >> able
>> >> to help -
>> >> Best,
>> >> David
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