A few days ago I asked for information on wireless GPS. In
particular I was interested in systems that could use the
system and the internet, perhaps using technology similar to
cell phones or pagers.
The following is the summary of responses I recieved. Many thanks
all who contributed. It seems that the technology is available,
even widespread, especially in the US and Australia. The biggest
drawback to using the telephone networks is not technical; it's
financial. Systems that use cellular phone networks incur costs
each call and are charged by the minute.
A lot of action in this area is happening in Australia. Simon
Roberts <[EMAIL PROTECTED]> described an IVT project being
conducted by the Tasmanian DOT and other related projects and
in Australia. Carl Nunn also mentioned a group called Mobiletrack
Australia (nearest reference I could find is
Peter Terrett <[EMAIL PROTECTED]> of Global Star GPS
Specialists (Melbourne, Australia,
described a system they have that uses various comms including
and can also use SMS if the optional display is used. He also
mentioned solutions for handling location when GPS fails in
"concrete canyons" involving "dead reckoning (electric speedo
and piezo electric gyro for heading change.)"
In Morocco, North Africa, Hassan Tazi <[EMAIL PROTECTED]> (an MI
BTW) reports that his company, Business Expansion, has developed
MapInfo/MapX application for vehicle tracking via the Internet
uses ORBCOMM satellite system and a Panasonic "unit".
John Brosowsky <[EMAIL PROTECTED]> described GeoComm's
tracking products (http://www.geo-comm.com/), which include a
that can connect to a cellular transceiver, but he points out the
main problem with cellular systems, which is cost. However,
has just developed new technology that can locate cell phones
without GPS. The new system involves setting up directional
equipemnt on cell towers which can monitor a wireless phone's
service channel and report its location as often as desired. He
reports that the prototype system is accurate to 50 ft, and can
where GPS can't (like in buildings). It elimintates the cost
because the cell phone doesn't have to make a call to report
locations; it just has to be turned on.
The following are web pages suggested by various people, followed
a short glossary of GPS/Communications industry TLA's (three
CDPD.org: Your Wireless Data Guide
Very good site for gathering infomration about the technology.
Joe Mehaffey and Jack Yeazel's GPS Information Website
This site is a large collection of links to GPS information.
include GPS News, hardware and software reviews, GPS FAQs,
related (maps, datums, waypoints, etc.), How does GPS work?,
information, otehr GPS and related links. Member of APRS
Position Reporting System at http://www.qsl.net/wb8tif/) webring.
Tendler Cellular's FoneFinder
This is a cell phone with built-in GPS. The product is aimed at
E911, Search & Rescue market. Dial 911 and it tells the
exactly where you are.
Intelligent Vehicle Trial
Describes a project by the Tasmanian Dept of Transportation to
GPS to manage trasportation networks.
New Zealand based company in the business of applying new
technologies to highway management.
Information about TeleType GPS hardware and software for vehicle
tracking. Systems available for both cellular phone and CDPD.
Navigation Technologies makes the map information found inside
GPS hardware manufacturer
Software provider for Transportation Management Systems
routing, and operations)
Tom Moll suggested these manufacturers who have systems that
GPS with cell phones and the internet:
Axiom Navigation, Inc.
Developers of the world-famous SportsTracker(tm)
GreyLink System from Greystone Consultants, Ltd.
PeopleNet Communications Corporation
"Internet-based mobile communications and satellite tracking"
Mobile Data Solutions
(see http://www.gsmdata.com/glossary.htm for a more complete one)
AMPS Advanced Mobile Phone Service
AOA Angle Of Arrival (equipment for locating cell phones)
AVL Automatic Vehicle Location
CDPD Cellular Digital Packet Data (for AMPS networks)
FMS Fleet Management System
GSM Global System for Mobile Communications
PCS Personal Communications Service
SMS Short Message Service
TDMA Time Division Multiple Access
TDOA Time Difference Of Arrival
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