Map gone crazy

exfive · Posted: Tue Sep 06, 2005 6:46 pm Post subject: Map gone crazy

I've used Tomtom for a couple of weeks now (in London) and lately I've noticed a problem with the map. Occasionally, when I stop (at a traffic light for instance) the map seems to turn 90 degrees (as if I turned) and then go back to pointing ahead, all this without me actually turning the car. The same happends sometimes when I turn, the map will turn in the other direction and then turn back.
Does this ring any bells with anyone?
I thought of problems with the GPS or maybe the SD card speed (kingston 1GB dont know the speed but paid £40 so don't think it's a high speed one) but have not got a clue.
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Toshiba e750 wifi + Belkin Bluetooth CF card
Sysonchip Smart Blue Mini
TTN5, Destinator PN, Kingston 1GB SD

exfive · Posted: Tue Sep 06, 2005 7:06 pm Post subject:

Forgot to mention - TT version 5.0
_________________
Toshiba e750 wifi + Belkin Bluetooth CF card
Sysonchip Smart Blue Mini
TTN5, Destinator PN, Kingston 1GB SD

Oldboy · Posted: Tue Sep 06, 2005 7:12 pm Post subject:

When you are stopped TT is trying to guess your direction. As there's no movement of position, it must be looking for inspiration. :D

When you make a sudden turn TT might lose a sat for a sec or so, before it picks up another, and then has to wait for the necessary data to be received.
_________________
Richard

TT 910 V7.903: Europe Map v1045
TT Via 135 App 12.075: Europe Map v1145

exfive · Posted: Tue Sep 06, 2005 7:45 pm Post subject:

Oldboy · Posted: Tue Sep 06, 2005 7:57 pm Post subject:

Talk to it soothingly. Rolling Eyes

_________________
Richard

TT 910 V7.903: Europe Map v1045
TT Via 135 App 12.075: Europe Map v1145

melpen · Occasional Visitor Joined: Jan 19, 2005 Posts: 8

I have same problem, area around London wall map starts to spin, sat signal is bouncing off high rise structures, plus number of sats is 0

alix776 · Posted: Fri Sep 09, 2005 9:25 am Post subject:

if shout abusingly at the pda mine usually locks up not sure about the go it might have the same efect radio2 seams to keep it happy enough
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currently using aponia truck navigation on windows phone. Good bye IOS don't let the door hit you on the way out .

Oh the joys of being a courier.
device Lumia 950 xl

exfive · Posted: Sat Sep 10, 2005 1:29 am Post subject:

Well I just look at the PDA angrily and the map spins back into place. Then next junction when my eyes are on the road the cheeky little thing does it again. I look at it and it's back to position. Then I look at the traffic light for a sexond and there it goes again. It's like it knows it's annoying me...
On Fire

_________________
Toshiba e750 wifi + Belkin Bluetooth CF card
Sysonchip Smart Blue Mini
TTN5, Destinator PN, Kingston 1GB SD

Royston · Posted: Sat Sep 10, 2005 1:27 pm Post subject: Map spin

When I did some evaluation with my polstar bt, I found the map would spin if I placed receiver on passenger seat. As soon as I placed it back on dashboard it was ok. So, maximum view of satellites seems essential to overcome some of this problem. Maybe tall buildings give the same scenario.

Asghar · Occasional Visitor Joined: Jun 13, 2005 Posts: 19

It's just another bug in TT5, TT3 never had this problem.

Trevor1234 · Posted: Sat Sep 10, 2005 4:27 pm Post subject:

Hi exfive
Reading the questions on this forum shows that TT5 works fine with certain PDAs and certain GPS receivers. For instance I have a ipaq 2210 and a BT338 and I get no troubles at all. I have also noticed on the forum that other people with the same set-up as myself are also pleased with TT5. When one buys a programme for a Desk Top computer it doesn’t make any difference if the computer is a ‘Dell, Gateway or Evesham’ the program will run with no trouble. However, buy TT5 for your PDA and you are in the lap of the Gods.

BlueBox · Posted: Sat Sep 10, 2005 6:17 pm Post subject:

I too had a problem with TTGo this friday the the map started spinning & keep losing the signal in traffic near kings cross station i was glad when the customer in my cab said he knows a quick way home. anyway of fixing this problem

exfive · Posted: Sat Sep 10, 2005 8:36 pm Post subject:

Royston · Posted: Sat Sep 10, 2005 11:12 pm Post subject:

Seems like my Polstar bt pbt-111 has the Sony's newest 3rd generation solution GPS SOC chip CXD 2951. Sounds very impressive but some of the write ups give this chipset a poor review. I often thought the speed of my Ipaq 3870 was to blame when I was already past roads showing on my tomtom5 but I now realise it may well be a SLOW Polstar receiver. It appears that the Globalsat BT can beat the oppositon hands down. I originally purchased the Polstar because I liked the idea that I can use 3AAA batteries in it, and thought it would last longer than BT receivers with a fixed rechargeable inside which could not be replaced in some instances. Maybe I should have gone for performance rather than how many times fixed rechargeable batteries can be recharged before they are finished thus rendering the gps redundant.

Ipaq 3870
Polstar PBT-111 BT GPS

MrT · Posted: Sun Sep 11, 2005 7:27 am Post subject:

Isn't this because some GPS units (and also navigation programs) ignore changes in position of under a certain distance?

So if your GPS stated position is shifting around by about 2m, the unit ignores this as it is within the HDOP region.

If every little movement in GPS position is read as a movement, the program will respond by rotating heads up in the direction the last apparent movement was made.

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