[labnetwork] Interlock Boxes

John Shott shott at stanford.edu
Fri Jul 11 17:42:33 EDT 2014 

Shiva:

Let me take a crack at answering some of your questions.

First, I doubt that you need to design an interlock ... there a plenty 
of options to just by them.

Most systems with which I am familiar (but not all ...) allow/require 
you to enable an interlock on a piece of equipment from the same system 
on which reservations are made.  Most of those systems are logged into 
with an old fashioned user name and password.  But there are lots of 
variations:  Gary Spinner may correct me, but, as I recall, Georgia Tech 
has a card reader on each piece of equipment that reads the university 
ID card and turns on the equipment if the person is authorized to use 
that tool.  Thee are probably other card-reader per tool installations 
as well.

Whether you use lab-specific or campus-wide ID for authentication likely 
depends on your campus infrastructure.  A number of campuses have and 
use central authentication using LDAP or Kerberos with the campus ID.  
Even with that, however, you still likely need to get information from 
your in-lab system to determine equipment qualifications, special 
privileges, etc.  Of course, for that to work, the in-lab name/ID has to 
match the campus-wide name/ID.

The problem of "tailgating" (3 or 4 people entering on a single card 
swipe) is a common problem for most access systems.  I have no direct 
experience with the long-range RFID units that should, in principle, 
read a card as you walk though the door and should greatly reduce that 
problem.

Good luck,

John

On 7/11/2014 12:09 PM, Shivakumar Bhaskaran wrote:
>
> Hello All,
>
> I am trying to set a interlock system for our cleanroom. In the 
> process I was able to get the phpscheduler up running. Before I design 
> or buy the interlock I need your inputs regarding how to set up.
>
> Do the user log in to computer that is attached to the unit and 
> validate the credentials and then use the equipment. Inorder to do 
> that user data should be validated by the scheduler system, in that 
> case does user have separate id created or it will be same associated 
> with the campus ID.
>
> Do the user use separate swipe card in the interlock to access the system.
>
> Apart from the user access, currently the users access the cleanroom 
> with swipe in card and when they leave they swipe out. But not all the 
> users swipe in or swipe out. Our door system is designed in such a way 
> that it will be opened for atleast for 10-20sec , but with this there 
> is possibility of other users following the previous user without 
> swiping the card. Does any one have system that detect the user based 
> on proximity that automatically gets the user information based on RF 
> ID card without swipe in.
>
> --Thanks
>
> --Shiva
>
> Shivakumar Bhaskaran, Ph.D.
>
> Searle CleanRoom Manager
>
> Uinversity of Chicago
>
> 5735 S.Ellis, Room 032
>
> Chicago-60637
>
> Ph:773-795-2297
>
> *From:*labnetwork-bounces at mtl.mit.edu 
> [mailto:labnetwork-bounces at mtl.mit.edu] *On Behalf Of *Michael Rooks
> *Sent:* Friday, July 11, 2014 9:11 AM
> *To:* labnetwork at mtl.mit.edu
> *Subject:* Re: [labnetwork] Interlock Boxes
>
> We use ethernet relay boards from National Control Devices 
> <http://www.controlanything.com/Relay/Relay/ETHERNET_PROXR>, 
> controlled by Badger (the new version of Coral). NCD also makes wifi 
> connected relays. Having two relays on a board makes it easy to keep 
> isolated grounds isolated. Each board requires its own static IPv4 
> address. The boards can be easily mounted in a 6"x6" electrical box, 
> or in the custom-fitted plastic case from Badgerlms. 
> <http://badgerlms.com/> I suggest you keep these boards behind a 
> firewall, since they run a tiny operating system and web page, but 
> with only minimal security.
>
>
> ---------------------
> Michael Rooks
> Yale Institute for Nanoscience & Quantum Engineering
> nano.yale.edu
>   
>   
>
> On 07/11/2014 06:14 AM, Flückiger Philippe wrote:
>
>     Hi All,
>
>     EPFL is using Ether IO24 R from http://www.elexol.com/IO_Modules/
>
>     Our software is homemade but we have a call for tenders running in
>     order to "couple our homemade software" with a commercial package.
>
>     We will keep you posted on this important move on which we are
>     investing a lot of effort.
>
>     With my very best regards,
>
>     Philippe
>
>     /Dr Philippe Flückiger/
>
>     /Director of Operations/
>
>     /http://cmi.epfl.ch//
>
>     /Phone +41 21 693 6695/
>
>     *From:*labnetwork-bounces at mtl.mit.edu
>     <mailto:labnetwork-bounces at mtl.mit.edu>[mailto:labnetwork-bounces at mtl.mit.edu]
>     *On Behalf Of *John Shott
>     *Sent:* jeudi 10 juillet 2014 20:55
>     *To:* Kolin Brown; labnetwork at mtl.mit.edu
>     <mailto:labnetwork at mtl.mit.edu>
>     *Subject:* Re: [labnetwork] Interlock Boxes
>
>     Kolin:
>
>     I believe that most folks are using the Advantech ADAM-6060 or
>     ADAM-6066 6-channel IP-addressable relay modules for
>     interlocking.  Others use modules that come from National Control
>     Devices that have 1-, 2-, 4-, and 8-relay devices with current
>     ratings from 5 to 30 amps.  Most folks are currently using
>     hard-wired ethernet connections, but some wireless options are
>     also available.
>
>     I believe that most of these IP-addressable relays are
>     functionally equivalent but would certainly have minor differences
>     in the default port that is used and the exact command sent to
>     turn on, turn off, or check the status of a given relay channel.
>
>     I don't have experience with either Cores or iLab software to know
>     what, if any, interlocking hardware has been interfaced with their
>     systems.
>
>     Good luck,
>
>     John
>
>     On 7/10/2014 6:08 AM, Kolin Brown wrote:
>
>         Hi!  Here at WVU, we are going to interlock our tools to our
>         reservation software.  Everyone at the UGIM was talking about
>         the "blue boxes" from Advantech.  Can anyone provide me with a
>         model number? Also, has anyone interfaced these boxes with
>         Cores or iLabs software?
>
>         Kolin Brown
>
>
>
>
>
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