FRIHOSTFORUMSSEARCHFAQTOSBLOGSCOMPETITIONS
You are invited to Log in or Register a free Frihost Account!


Velocity via GPS





polly-gone
This question is a pretty simple one:

What is the best way to measure velocity via GPS? OR: How do GPS devices measure velocity?

For example, how would a run tracking app measure your velocity. If I were to make one, I would measure my position every second or so, then compare it to two points ago to get the distance. Even at a moderate pace of 5 MPH you still would have gone 14 feet in 2 seconds which would be measurable.

Does that sound about right?

Thanks,

-Nick Smile Smile Smile
Bikerman
http://www.aprs.net/vm/gps_cs.htm
polly-gone
Short and to the point. Thanks Bikerman! I should LMGTFY myself for that one haha. (http://lmgtfy.com/?q=how+do+gps+track+speed)

Thanks,

-Nick Smile Smile Smile
Bikerman
Sorry, not trying to be rude, I was involved in another thread and only had time to quickly answer. Smile
polly-gone
Oh no, this is exactly what I was looking for. I'm creating an app that measures distances based on acceleration and I just really needed to know how often to record data. This is literally exactly what I needed.

EDIT: But seriously, I should have just Googled it first Smile

-Nick Smile Smile Smile
chatrack
Hi,

Here there are some mobile phone carrier providers are giving service such as,
you can find your speed while you going in a car.

The mobile phone should have GPS. You need to install a software in your phone.
The software send GPS coordinates, to software server (GPRS method), where it calculate instantaneous speed

Give Speed data back to the phone for display.
gverutes
Does anyone know of a phone up that tells you the speed limit of the area you are in?
osamaterra
The GPS receiver has an internal clock. After calculating the distance from two position in the movement route, it can calculate the velocity.

Try Sygic, it has a good maps with speed limits
Related topics
Play IRC Via Web
Broadband Internet access via TV cables (cud reach 100mb/sec
Frankfurt Motor Show, 2005
A problem when uploading via Frontpage...
DVD Playback via external projector
Gizmondo, anyone ever heard of it?
Mobile phone with GPS
Bluetooth GPS muis
[RESOLVED] Hello can Frihost can access via ftp?
Hoe mijn site volledig zichtbaar maken via google
[PHP] Running Cron Jobs Via PHP Script
[new] México DF busca ofrecer Internet inalámbrico gratis.
How to protect from vandalism of car paint work?
Fishing Line Angle Device
Reply to topic    Frihost Forum Index -> Science -> Basics

FRIHOST HOME | FAQ | TOS | ABOUT US | CONTACT US | SITE MAP
© 2005-2011 Frihost, forums powered by phpBB.