OT: Elevator Algorithm

[Jim Thompson]

Having spent the last two days attending meetings in a high-rise, I
was musing...

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

...Jim Thompson

 

[Stephen J. Rush]

Having spent the last two days attending meetings in a high-rise, I
was musing...

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

An algorithm? I thought is was a reflection of the natural law that makes
the probability of encountering a cop (or a prostitute, or a car salesman)
an inverse function of your desire for one.

 

[James Thompson]

Having spent the last two days attending meetings in a high-rise, I
was musing...

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

...Jim Thompson

Its a sensor they use that tell's the elevator to only stop on empty floors.

 

[John Woodgate]

In message <[email protected]>, dated Thu, 7

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

Murphymorphic resonance. Just like in the 'three doors' problem, you can
improve your chances of success by switching to another door after
waiting 20 seconds. (;-)

 

[John Woodgate]

Its a sensor they use that tell's the elevator to only stop on empty floors.

What do you dial to get the apostrophe police? Is it 9'1'1'?

 

[[email protected]]

Having spent the last two days attending meetings in a high-rise, I
was musing...

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

...Jim Thompson

It's an adaptive algorithm that depends on the algorithm YOU use to
select which door to stand near. The better your algorithm is, the
better the elevators are at opening a door you're not standing near.
But think of all the algorithmically-challenged people who stood near
the "wrong" elevators, whom you helped.

- Tom Gootee

"He who lives in a glass house should not invite he who is without
sin."

 

[Michael A. Terrell]

It's an adaptive algorithm that depends on the algorithm YOU use to
select which door to stand near. The better your algorithm is, the
better the elevators are at opening a door you're not standing near.
But think of all the algorithmically-challenged people who stood near
the "wrong" elevators, whom you helped.

How about when you walk up to a bank of four elevators just as they
all open at the same time? It was really weird. Of course it was a
government building.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[Clifford Heath]

How about when you walk up to a bank of four elevators just as they
all open at the same time?

That only happens if you stand *exactly* in the center equidistant from
all four. The system cannot inconvenience you, so it tries to confuse you.

 

[Frithiof Andreas Jensen]

How about when you walk up to a bank of four elevators just as they
all open at the same time? It was really weird. Of course it was a
government building.

Hmmm.

The elevators are cursed and one of the three will take you directly
to the sub-sub-sub-basement furnace as part of the pact that
Government made in return for power without reckoning ;-)

 

[[email protected]]

How about when you walk up to a bank of four elevators just as they
all open at the same time? It was really weird. Of course it was a
government building.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

Obviously the elevator system must have thought that you either didn't
care or weren't going to use an elevator.

- Tom Gootee

 

[Mark Fortune]

That only happens if you stand *exactly* in the center equidistant from
all four. The system cannot inconvenience you, so it tries to confuse you.

And then the one you move towards closes.

 

[Michael A. Terrell]

Obviously the elevator system must have thought that you either didn't
care or weren't going to use an elevator.

It was at the VA hospital in Gainsville. The only reason to be where
I was, was to use an elevator. They were in a small bay off the main
hallway.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[Michael A. Terrell]

Hmmm.

The elevators are cursed and one of the three will take you directly
to the sub-sub-sub-basement furnace as part of the pact that
Government made in return for power without reckoning ;-)

I was already at the lowest level in the building, just around the
corner from the canteen.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[Michael A. Terrell]

And then the one you move towards closes.

No, they are all set for the handicapped, so most of the time people
end up pushing the "Close Door" button to reduce the wait time if no one
is coming.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[Michael A. Terrell]

That only happens if you stand *exactly* in the center equidistant from
all four. The system cannot inconvenience you, so it tries to confuse you.

Nice try, but they opened just as I came around the corner, into the
elevator bay at the hospital. It reminded me of making the hour long
drive home from work one night and having all 27 traffic lights green,
when I rarely saw more than five green lights. That happened only the
one time in my four years of working for UVCI on night shift in
Cincinnati, Ohio.



--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

 

[Joerg]

Hello Jim,

Having spent the last two days attending meetings in a high-rise, I
was musing...

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

That would be the Murphy algorithm.

 

[[email protected]]

all three of ours would only come to one floor for a fire alarm.
dont get me started on the "fuzzy logic" controller, or how in a 13
story building, if your downbound, its often faster to get on the
upbound one and wait for it to reverse, then to wait for the car you
pushed for. Of course it will then stop first at the floor you got on
at.

Steve Roberts

 

[Oppie]

Having spent the last two days attending meetings in a high-rise, I
was musing...

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

...Jim Thompson

you missed you chance to try this one out for making the elevator non-stop
http://www.eeggs.com/items/12697.html

Oppie

 

[Nico Coesel]

Having spent the last two days attending meetings in a high-rise, I
was musing...

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

Can we stop this topic? Someone with a sadistic mind already invented
that and implemented it in a hospital. As a bonus that person made the
doors close very soon after they opened. I had to use a plant to stop
the doors so I could push my grandfather + wheelchair into the
elevator.

 

[Martine Riddle]

Having spent the last two days attending meetings in a high-rise, I
was musing...

What algorithm is used to ensure that the elevator door that you are
standing in front of WILL NOT BE the one that opens ?

What floor was it, 7 1/2 ?

Cheers