Hello,

I'm after infomation regarding existing products that allow for an
elevator communications system to be wirelessly connected.  That is,
devices (such as buttons & displays) on each floor talk to devices on
other floors and in turn to the elevator(s), wirelessly.  So, other
than power, no cables have to be run thoughout the building (that is,
for the elevator of course).

I am aware that there are patents on this or similar products, e.g.,
the following one from Hitachi:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=2&f=G&l=50&co1=AND&d=ptxt&s1='wireless+elevator'&s2='call+button'&OS=%22wireless+elevator%22+AND+%22call+button%22&RS=%22wireless+elevator%22+AND+%22call+button%22

The following is my username & password to "Elevator World online
Research Centre" (http://research.elevator-world.com/rc/research_center.shtml);
username: ewresearch and password: balustrade    - feel free to use
this for your research

The infomation I'm interested in:
- Are there any such products on the market (& what are they)
- If so, how much are they and are they being used etc ...
- Papers, articles, research (etc ...) done in this area
- Details of wired systems; particularly installation cost
- Any other IP (patents etc ...)

Solutions to this GA questions:  Firstly, I'm very reasonable;
naturally enough relevant infomation will warrant a reward.  Secondly,
I'll grant a bonus for exceptional work.  Finally, not all of the
infomation I have listed is required, that is just stuff I'd like to
know if you come across it or spend a couple of minutes looking for
it.  The core of the question is competitive products, followed by
research or articles in this area.

Additional infomation:
- Main elevator companies include; Otis, Shindler, Kone, Thyssen Krupp (spelling?)
- Parts distributors include: Dewhurst

Please include all relevant links & discoveries.  Feel free to contact
me for any further infomation/questions ...