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| Subject: | Re: MobileLBSList: Looking for feedback..... |
| Date: |
08/16/2000 08:18:17 AM |
| From: |
Pat Waggaman |
|
Jim,
You're right into one of the key points, as geographic accuracy rises, it=20
does so as the square (at least) of the increased desire for precision.
We at Marine Imaging Systems manage ship locations for soverign and fleet=20
Vessel Monitoring Systems (VMS) via satellite positioning: essentially=20
keep track of vessel positions to make sure they fish where and when=20
they're supposed to, and to coordinate fleet logistics.
This is a question not only of actual position, but of course and speed as=
=20
well. A vessel in a prohibited area that is moving at "cruising speed" is=
=20
not fishing. Likewise if it is moving at "fishing speed" in a permitted=20
area, biological activity can be garnered. An analgous situation is in a=20
system of reduced positional accuracy where the transmitter wants to sell=20
burgers in a shopping mall. If the target system is moving at < 3 mph, and=
=20
has been doing so for more than one minute: it is walking. If the target=20
is moving at > 3 mph, or has only been moving at that reduced speed for=20
less than one minute, it is a vehicle stuck in a traffic jam out front, or=
=20
ion a bicycle (or perhaps a kid with a pair of hubcaps under his arm) in=20
none of these cases is this a valid prospect for burger sales (except=20
perhaps after the kid gets the hubcaps stashed!).
Likewise course is an interesting filter. If you were driving along your=20
suburban road looking for a burger you would probably want a burger joint=20
on the same side of the limited access highway: further that burger stand=
=20
should be 1 - 3 minutes ahead of you (for a push ad): so that the target=20
system has enough time to evaluate the ad, get the gastric juices flowing=20
and lo and behold, the golden arches appear over the hood on the right with=
=20
easy access.
This is marketing, and using positioning to accentuate it. Too many idiots=
=20
have had "the answer" with a new technology and starved waiting for the=20
world to beat a path to their door. Sure, the technology is neat, but our=
=20
buyers aren't interested in our technology, they're interested in how many=
=20
customers, of what quality we can bring to them.
Pat
At 02:44 PM 08/15/2000 -0400, you wrote:
>Bryan Morgan wrote about the complexities of position, I would like to=20
>offered up a few
>more complexities based on future real world applications. There are many=
=20
>ways to determine
>location, by GPS, by triangulation, signal strength, by access point,=20
>etc... Some methods
>are better than others depending on the use or application.
>
>If am driving on a suburban road and I want to know where my nearest=20
>McDonald's is - that
>could easily be solved by any of the above methods. Applications that=20
>operate successfully
>at plus or minus of 500 feet are a lot different from the applications=20
>that require
>accurate information to plus or minus 5 feet. What if I am inside a=20
>large 60 story office
>building and I want to know where someone's offices is. Imagine what=20
>accurate positioning
>information could do for grocery stores and all of retail in general. The=
=20
>problem seems to
>really manifest itself exponentially as we try to increase the resolution=
=20
>of ones location.
>
>I cannot offer up any single solution, my company is working with a number=
=20
>of technologies
>to meet our customer's needs. But at fine resolutions we are seeing the=20
>access point
>topology look more viable - and a lot will depend on PAN technologies such=
=20
>as Bluetooth. Is
>anyone else out there on the mailing list interested in high resolution=20
>location? If so,
>please drop me a line, I would love to chat with you.
>
>Best Regards,
>
>Jim
>
>=3D
>Jim Sabol
>Proxicast, Inc.
>1410 Fox Chapel Road
>Pittsburgh, PA 15238
>1-877-77PROXI (1-877-777-7694 - toll free)
>(412) 968-0934 Tel
>(412) 968-0936 Fax
>jim.sabol@proxicast.com
>www.proxicast.com
Thos. E. Waggaman, III (Pat)
Director =09
Marine Imaging Systems =09
Ave Borgo=F1o 22.090 =09
Caleta Higuerillas
Vina del Mar
Chile
waggaman@marimsys.com
Tel: 56 32 815005
FAX: 56 32 815243
http://www.marimsys.com
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