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captaincaveman
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Joined: Oct 23, 2006
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lbendlin
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Location: Massachusetts, USA
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 Posted: Fri Oct 27, 2006 7:18 pm Post subject: |
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Anyone else finding this ironic, given how little love TomTom show for the TomTom Mobile version?
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Eldar
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Location: London
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| Posted: Fri Oct 27, 2006 9:19 pm Post subject: |
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| lbendlin wrote: | | Anyone else finding this ironic, given how little love TomTom show for the TomTom Mobile version? |
I'm not quite sure that it would work as expected for a number of reasons, but they are a clever lot, so let's wait and see. |
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rodderstrotter
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Joined: Nov 10, 2005
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| Posted: Fri Oct 27, 2006 10:33 pm Post subject: |
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I had a similar idea a few months back, all tomtom traffic users could ping there gps position back to tomtom giving some traffic info. Thought about it & concluded there weren’t enough traffic subscribers to make this work efficiently.
This sounds a much better idea. The accuracy will depend on how well the data is processed, it'd be much better if all mobile networks were involved. It would be good if all roads could be covered.
As much as I like tomtom traffic, the current accuracy of it is poor & hopefully this will make the difference.
The problems I can see is there are already complaints saying that sat nav causes increased traffic in quite rural locations, this may well increase the problem. If this became popular, the majority of drivers would take the alterative routes, blocking them, giving the system no advantage. |
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DennisN
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Joined: Feb 27, 2006
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Location: Keynsham
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| Posted: Fri Oct 27, 2006 11:35 pm Post subject: |
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| What would happen when all the Rolling Stones fans were queueing along the roadside for a concert? Their phones would show a heck of a traffic jam, n'est pas? :D |
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Eldar
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Location: London
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| Posted: Sat Oct 28, 2006 12:00 am Post subject: |
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| DennisN wrote: | | What would happen when all the Rolling Stones fans were queueing along the roadside for a concert? Their phones would show a heck of a traffic jam, n'est pas? :D |
As far as I understand the basis for this technology is the process of handover when a mobile phone is being passed from one basestation to another and then calculation of all possible routes this particular mobile phone could have achieved this transition. Obviously the car users are limited to using the roads, so the number of the possible routes is very limited and thus the pedestrian users could be "separated" from the motorists.
In your example there will a number of mobiles getting through this particular stretch of the road with no delays, so a large group of stationary mobiles will not be taken into account.
This model can work in the coutryside, but the data processing and differentiating between the different types of mobile users in the cities would be a major problem and so will be building the "user" models for different cities. Take Amsterdam for instance - how can you tell the difference between a cyclist and car? |
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Skippy
Pocket GPS Verifier
Joined: 24/06/2003 00:22:12
Posts: 2946
Location: Escaped to the Antipodies! 36.83°S 174.75°E
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| Posted: Sat Oct 28, 2006 3:27 pm Post subject: |
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| Eldar wrote: | | As far as I understand the basis for this technology is the process of handover when a mobile phone is being passed from one basestation to another and then calculation of all possible routes this particular mobile phone could have achieved this transition. |
I got the impression that it uses GSM too, but you have to wonder...
If the GPS knows exactly which road it's on and exactly how fast you have travelled down that road, why would it bother with all this mobile phone jiggery pokery to make such a rough guess of your location/speed/direction/which road you are on? 
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Eldar
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Joined: Sep 24, 2004
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Location: London
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| Posted: Sat Oct 28, 2006 4:26 pm Post subject: |
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| Skippy wrote: | | Eldar wrote: | | As far as I understand the basis for this technology is the process of handover when a mobile phone is being passed from one basestation to another and then calculation of all possible routes this particular mobile phone could have achieved this transition. |
I got the impression that it uses GSM too, but you have to wonder... |
You mean GPS, surely?
| Skippy wrote: |
If the GPS knows exactly which road it's on and exactly how fast you have travelled down that road, why would it bother with all this mobile phone jiggery pokery to make such a rough guess of your location/speed/direction/which road you are on? |
Correct, but they are using all GSM traffic, not just those with GPS receivers. You are not sending any GPS data to the server, otherwise they would have to sign people up for this, now they are just using the standard data/information stream which are already a part of the GSM network. |
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DennisN
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Joined: Feb 27, 2006
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Location: Keynsham
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| Posted: Sat Oct 28, 2006 5:21 pm Post subject: |
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OK, so what would happen when all the Rolling Stones fans were going home from the concert on their pushbikes? Their phones would show a heck of a traffic jam, n'est pas?
If this phone location is so accurate and legally available, why can't the police actually use it to catch the baddies - as far as I know, the best they've managed so far is to place a phone within x metres radius of a mast - i.e. your alibi is no good my lad because your mobile phone was within 100 yards of mast X which is NOT within 100 yards of your alibi location, therefore you DID have opportunity to be a baddie. |
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Eldar
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Joined: Sep 24, 2004
Posts: 1294
Location: London
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| Posted: Sat Oct 28, 2006 5:45 pm Post subject: |
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| DennisN wrote: | | OK, so what would happen when all the Rolling Stones fans were going home from the concert on their pushbikes? Their phones would show a heck of a traffic jam, n'est pas? |
If they actually block the road and nobody else can get through - then yes., otherwise this is example is not different from your previous one, comprenez-vous ?
| DennisN wrote: |
If this phone location is so accurate and legally available, why can't the police actually use it to catch the baddies - as far as I know, the best they've managed so far is to place a phone within x metres radius of a mast |
errr..... you lost me there. What is this police you are talking about (I haven't seen one in my area, only some poor sods dressed up like salvation army and by the look of them the only thing they can catch is the flu) ?
This technology does not give you the exact position of a mobile, just the speed of movement. |
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DennisN
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Joined: Feb 27, 2006
Posts: 14893
Location: Keynsham
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| Posted: Sat Oct 28, 2006 7:24 pm Post subject: |
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| So for an even better wind-up, lets all beg TT to use the system to track everything and get their maps up to date. |
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Skippy
Pocket GPS Verifier
Joined: 24/06/2003 00:22:12
Posts: 2946
Location: Escaped to the Antipodies! 36.83°S 174.75°E
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| Posted: Sun Oct 29, 2006 12:12 pm Post subject: |
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| Eldar wrote: | | they are using all GSM traffic, not just those with GPS receivers. |
Ahh, now it makes sense. :D I thought it was just people who had TomTom devices providing the data. Now I see why they are tracking phones!
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