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Unread 11-12-2010, 18:01
timothyb89 timothyb89 is offline
code monkey
FRC #1977 (Loveland High Robotics)
Team Role: Alumni
 
Join Date: Oct 2008
Rookie Year: 2009
Location: Loveland, Colorado
Posts: 45
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Re: Android App - FRC Spyder

Quote:
Originally Posted by JesseK View Post
On a phone, the OPR/DPR calculations will eat up battery life as if there weren't enough LiPo cells in the universe. Thus, this information is best calculated on a server and fed to the clients. I've experimented with just such a program that does OPR/DPR based off of the live frcfms Twitter feed for IRI, and the results weren't pretty.

Since I used Java on a my jailbroken iPhone, I should be able to do some rewrites for use on a Netbook; however battery life and internet connections are still a concern.
All of the OPR and DPR calculations I've done were practically instantaneous... but, I'm generally working with local data. Considering how powerful the average Android phone is, I'd say it shouldn't take more than 10 seconds -- quick to the point where it would probably take more power to download the data than to calculate the scores locally.
I'd say that your matrix library is either awfully inefficient or you don't have local data to work with...
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