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Stocksmoor with a Tablet

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RogerB

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16 Mar 2013
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Wanting to spice up my life I decided to take the train to Stocksmoor to test my newly acquired Acer tablet computer, loaded with Google Maps and a Speedometer app.

On the outward journey (Sheffield to Huddersfield) I couldn't get a GPS signal so that put a damper on that one.

Got off at Stocksmoor, walked down to Thunder Bridge, up Dam Hill to visit a friend who wasn't in, up Cote Close and along Long Lane (a nature trail) and along some fields to Shepley, GPS was useful here.

Got GPS & Wi-Fi at Shepley (which surprised me) and was able to use the National Rail app to get the time of the next train to Sheffield and even which platform it was on (50/50 chance of that being right).

The screen is hard to read outdoors so if you were on Shepley station about lunchtime and saw a bloke staring intently into some foliage it was me trying to get some shade to be able to read my tablet.

Once on the train GPS was OK, took a while to find it initially, but once it was latched on to the satellites it kept track very well.

Because there was no Wi-Fi on the train the app relied on the stored maps, which were pretty low resolution until I got to Sheffield. To get decent resolution throughout a journey I reckon you'd have to look at the maps and zoom in to the level you require before setting out. Which is why the Sheffield map was at a higher resolution.

It even kept track in some of the shorter tunnels.

Wi-Fi re-appeared at all the stations on the route, and it would have been nice if the maps were topped up then, maybe the train didn't wait at the station long enough?

The speedo app I used was "GPS Speedometer" from Linxmap, and seemed to work well, although I had nothing to compare it against.

I was using BT Wi-Fi hotspots, being on BT broadband I have free access to BT-FON and public BT Wi-Fi.
 
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RailUK Forums

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What were the speeds like with the BT FON/BT Wifi when out and about? I'm in a similar position as a BT customer, although looking to buy a tablet if the speeds outdoors are decent.
 

RogerB

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Speeds were calculated using GPS, not Wi-Fi.

They seemed OK in my estimation, top speed was 60mph, the train was a Northern Rail DMU and stopped at every station on the way (except Elsecar).

There's some very nice apps out there for Android, I'm looking at one at the moment which gives all the GPS data called "GPS Essentials" it allows you record your journies for future analysis, and the train & bus apps are quite good.

Always go for the free or "Lite" ones so you can try before you buy.
 

Zoidberg

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What were the speeds like with the BT FON/BT Wifi when out and about? I'm in a similar position as a BT customer, although looking to buy a tablet if the speeds outdoors are decent.

Speeds were calculated using GPS, not Wi-Fi.

...

I think the question was about the internet connection speed - i.e. the Mbps (or Kbps) of the Wi-Fi connection.
 

RogerB

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Ah - beg pardon.

Don't know as I have no way of measuring them, but they seemed good. It will depend on the hotspot you sign on to. Mine runs at 2 Mbits/sec, if you find one connected to BT Infirmity you might get 20 or 30
--- old post above --- --- new post below ---
I've just installed this on my tablet to measure download speed, seems to work OK

https://play.google.com/store/apps/details?id=uk.co.broadbandspeedchecker
 

starrymarkb

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IIRC its 512kb/s for a Non Infinity 'Fon' connection and 2Mb/s for an Infinity - the rest is reserved for the owner of the connection
 

RogerB

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I get 1.79 Mbits/sec download & 0.34 Mb/sec upload through my FON connection, which is exactly the same as if I connect to the router via Wi-Fi not using FON. It's also the same as I get from my PC using an Ethernet connection.

Now I've got the speed test app I'll make notes next time I go out & about.
 

RogerB

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Sheffield
Recently did a trip to Wakefield and another to Knaresborough. The tablet's GPS seemed to work better southbound than northbound! Could be to do with where I was sat in the carriage? I took my car SatNav on one of the trips for comparison, and that didn't perform any better.

Broadband at Wakefield Westgate (East Coast WiFi) was good, that at Barnsley (Barnsley free WiFi) was a pain. You have to register using your mobile phone and by the time I'd worked it all out my train arrived. You have to re-register from time to time too.
 

RogerB

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Sheffield
Just had a trip to Knaresborough and this time I sat in the centre of the carriage and the GPS kept perfect track of where I was, in both directions.

One problem is that when you switch from one app to another (eg maps to speedometer) you lose the GPS fix. I got round this by installing GPS Essentials

https://play.google.com/store/apps/details?id=com.mictale.gpsessentials

and turning the "Track" feature on. This keeps the GPS switched on and fixed, even when the app is running in the background.
 

eastwestdivide

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I can never get my phone GPS to work in a Sheffield/London 222 Meridian, but it works fine on other trains - various Pacers, Eurostar (UK and France/Belgium), Javelin etc.
Any ideas?
 

RogerB

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Not sure on that one. Have you tried recently? I've noticed by GPS has been fixing more quickly in the last week or so than previously.
 

RogerB

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Sheffield
Perhaps the satellites can't keep up. Try getting a signal before you enter the station building and then see if the building screens it, if not see if it disappears when you board the train.

If the signal is still there when the train sets off it may be OK for the journey. I get the impression once you get a fix the device will estimate where it is if it loses a satellite or two.

The "GPS Essentials" app displays how many satellites it sees and how many it's using to get a fix. As the latter increases you can see the accuracy improving.
 

eastwestdivide

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Ta for the tips. I'll try the station fix first next time on a Meridian.
However, I don't think it's connected with "can't keep up", as I've successfully got a first-time fix when already on a train on HS1 once it's out of the tunnels and into Essex, already doing 100mph+.
Actually, while thinking about this, I had a quick google and found a useful section on the openstreetmap wiki:
http://wiki.openstreetmap.org/wiki/United_Kingdom_railways#Trains_known_to_permit_GPS_reception
listing trains which do and don't permit GPS reception:
Trains known not to permit GPS reception
Virgin Voyager (220/221)
MML Meridians (222)
derived from Voyagers, similar problems. MML still run HSTs as well, use these.
Virgin Pendolino (390) - rumoured that the vestibule windows may be ok
South West Trains 'Desiro' (444/450) - seats at some windows are ok (seemingly away from toilets, etc).
Eurotunnel enclosed shuttle trains, though freight shuttles may work outside the tunnel.
 

RogerB

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16 Mar 2013
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Sheffield
These are a couple of recent trips.

Earth 01.jpg

The blue line is a trip from home to Chapeltown with the tablet in my pocket, using the Tracking option in Android switched on. GPS switched off and WiFi switched on. Location tracking is done using the position of the WiFi Hubs, so you see the one at home, signal is lost until I get to Sheffield station where another hotspot is found. Once under way signal is lost again until we arrive at Chapeltown.

This trace was downloaded from my Google dashboard as a KML file and imported into Google Earth.

The red line represents a trip into Sheffield from Castleford. Here GPS is switched on until just outside Sheffield. This time I used the "Tracks" feature in GPS essentials to generate a KML file. It takes GPS readings and stores them on the tablet for future export into Google Earth &c.

Google Location Tracking also uses GPS when it's switched on to give a more accurate track, (allegedly).

The black lines are railway tracks.
 

RogerB

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16 Mar 2013
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Sheffield
This was a more interesting journey.

Knaresborough 23-10-2013.jpg

I left home 09:00 on the bus, Arrived in London 09:15, and back to Sheffield station 09:30 to catch the train to Leeds. HS2 eat your heart out.

The straight lines are Wi-Fi locations, the wiggly ones GPS. All done with the Google Location feature and downloaded from the Google Location History dashboard.

I suspect the trip to London was due to my doing a WiFi speed test, which connects to a London base server.
 

RogerB

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16 Mar 2013
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109
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Sheffield
Another pack of lies

Map.jpg

This is another trip Sheffield - Knaresborough.

I set off with Wi-Fi and GPS enabled, but no GPS Apps running.

It shows me going to Leeds via Sowerby Bridge when in fact I went straight to Leeds via Barnsley & Wakefield. Obviously Wi-Fi location reporting cannot be trusted.

You can see where I started Google Maps to the North of Leeds on the way home when GPS location kicks in.

I switched GPS off in Leeds.
 
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