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Wireless positioning systems

Started by Jon Beniston October 7, 2004
Hi,

Does anyone know of an existing technology that allows for
high-resolution wireless positioning, with roughly the following
characteristics:

 - Positioning accuracy of 10-50cm
 - Position updated every 0.5s or less.
 - Range 200m+

Cheers,
JonB
Hi

try a look on marimatech.com

Regards

Jens

"Jon Beniston" <jon@beniston.com> skrev i en meddelelse 
news:e87b9ce8.0410070239.629146b9@posting.google.com...
> Hi, > > Does anyone know of an existing technology that allows for > high-resolution wireless positioning, with roughly the following > characteristics: > > - Positioning accuracy of 10-50cm > - Position updated every 0.5s or less. > - Range 200m+ > > Cheers, > JonB
"Jon Beniston" <jon@beniston.com> wrote in message 
news:e87b9ce8.0410070239.629146b9@posting.google.com...
> Hi, > > Does anyone know of an existing technology that allows for > high-resolution wireless positioning, with roughly the following > characteristics: >
Jon, what do you mean by this?
> - Position updated every 0.5s or less.
In other words, do you intend to send a new position every .5s, or receive a report on the position of the device? Assuming the later, do you need intermediate positions, or do you just need to know once the device has hit its target? I think that a good rifle would do the trick, shooting at a target with a pressure transducer of some sort to report a hit. Mike
"Mike Turco" <miketurco@yahoo-nospam4me.com> wrote in message news:<vtm9d.1030$cJ3.945@fed1read06>...
> "Jon Beniston" <jon@beniston.com> wrote in message > news:e87b9ce8.0410070239.629146b9@posting.google.com... > > Hi, > > > > Does anyone know of an existing technology that allows for > > high-resolution wireless positioning, with roughly the following > > characteristics: > > > > Jon, what do you mean by this?
Something like UWB/802.15.3a, but that is already in production. Basically you have an RF transmitter attached to the device you are tracking which constantly sends out beacons. These beacons are received by a number of other devices in known positions which are able to use the differences in time of arrival to triangulate the mobile devices coordinates. Tricky, because you need sub-nanosecond timing to get accuracy < 1m, but this is what UWB allows you to do.
> > - Position updated every 0.5s or less. > > In other words, do you intend to send a new position every .5s
Yes. Cheers, Jon
>Hi, > >Does anyone know of an existing technology that allows for >high-resolution wireless positioning, with roughly the following >characteristics: > > - Positioning accuracy of 10-50cm > - Position updated every 0.5s or less. > - Range 200m+ > >Cheers, >JonB
Inside? Outside? Cost? If the answer is outside and cost is not an issue. a Real Time Kinematic (RTK) GPS system could do the job. You should be able to get 1Hz positions to better than 10cm with a rover and fixed base setup. Ask the question on sci.geo.satellite-nav Paul