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Corsa Sport » Message Board » Off Day » Geek Day » Symbian application programming » Post Reply
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Ian |
posted on 7th Feb 10 at 22:14 |
Could just substring the serial portion, chance of a collision would be fairly small I would guess. | |
Chris |
posted on 6th Feb 10 at 21:13 |
As of 2004, the format of the IMEI is AA-BBBBBB-CCCCCC-D, although it may not always be displayed this way. The IMEISV drops the Luhn check digit in favour of an additional two digits for the Software Version Number (SVN), making the format AA-BBBBBB-CCCCCC-EE | |
Ian |
posted on 5th Feb 10 at 01:24 |
quote:Would be preferable to send the IMEI or something peculiar to the handset and resolve that locally to reg/owner. Could do a hex conversion or use some other larger number base to reduce the length of the datagram while you've got the entire character set available and not just integers. Edit - that would also mean that you don't have to configure at the handset and if the configuration wasn't present you could just display the data against the IMEI and not have potentially a load of handsets all sending you anonymous data. [Edited on 05-02-2010 by Ian] | |
Ian |
posted on 5th Feb 10 at 01:13 |
quote:I wouldn't even say that it needs to be that latent. You can get the data back as quick as it's being received as GPS and there's no overhead whatsoever with querying it from the caching tables and displaying it in the app. PHP imagecreate() would work but would require a refresh, hence preferring Flash. Could also do a desktop app that runs locally but streams the data down from a PHP script pretending to be a CSV file or something. UDP or TCP are the more logical choices but they are far more faffy particularly if you're talking about reconfiguring the CS server to do it as its not currently set up for anything like that. And a polled HTTP request at 1hz would look no different to a UDP stream in the final app. Just need to work out how to handshake it so the incoming data isn't susceptible to SQL injection and we're fine. Having said that, 100Hz is lovely :cool: http://www.youtube.com/watch?v=xuycoNzl814 That is post-processed though. | |
Chris |
posted on 4th Feb 10 at 23:30 |
If you want a GPS rate higher then 1Hz carry multiple phones running the same app :lol: | |
ed |
posted on 4th Feb 10 at 12:34 |
I'm not sure how well a live update would work - there are some limitations on the data acquisition and also the upload of data. If you used batch processing to collect the GPS data at the highest resolution possible (1Hz?) and then uploaded the data as an array or similar at a rate of 0.1Hz to your web server. You could then have a web application that creates images that are updated every 10 seconds, or you could make the web application run 10-20 seconds in delay of realtime which means that you could have a pseudo-live updating image. | |
Ste |
posted on 4th Feb 10 at 10:18 |
Symbian is the better option as anyone who knows anything about phones wouldn't have an iPhone. | |
Ian |
posted on 4th Feb 10 at 00:07 |
Have you got lat/long in the handset? | |
Chris |
posted on 3rd Feb 10 at 23:49 |
GPS would just be lat / long data, but possible to also include obd feeds for temp,throttle,etc. | |
Ian |
posted on 1st Feb 10 at 23:57 |
No reason why there couldn't be a few apps so long as they agreed on the data format going in the POST. | |
Paul_J |
posted on 1st Feb 10 at 23:51 |
nokia = yuk | |
Ian |
posted on 1st Feb 10 at 23:45 |
Yeah the data rate isn't massive, the GPS data is 1Hz. | |
John |
posted on 1st Feb 10 at 23:36 |
There are programs that report back as often as you want currently, GPS only updates every second so every couple of seconds would probably be about as high resolution as you got. | |
Ian |
posted on 1st Feb 10 at 23:33 |
Need to do something about plotting multiple points on a map overlay as well. I've got software to do a single GPS trace but you can't give it multiple NMEA sources. | |
Chris |
posted on 31st Jan 10 at 02:04 |
Are any of you out there experienced in programming applications for sysmbian OS. |