hubbard's blog
Dell racked, pictures uploaded
Submitted by hubbard on Mon, 03/24/2008 - 15:20.See http://dataturbine.org/content/new-dell-1435-server-calit2 for cameraphone snaps, server racked and plugged. Next step is OS reinstall.
More virtual DT
Submitted by hubbard on Tue, 03/18/2008 - 16:49.*Fix for kernel source found on http://www.linux-mag.com/id/4829
aptitude install build-essential linux-headers-`uname -r`
So now I have VMWare tools...much better mouse behavior!
Virtual DataTurbine
Submitted by hubbard on Tue, 03/18/2008 - 14:21.Larry Freudinger made a comment about virtualization that gave me the idea of a 'canned' VMWare image for DataTurbine. You can already download zillions of prebuilt images from VMware; why not one for DataTurbine? (The images are used via the free VMWare Player program.)
The image could contain
*Linux operating system
*Java, with Ant and subversion (See this page for instructions)
More on GPS-tagging data feeds
Submitted by hubbard on Tue, 03/18/2008 - 14:13.Looking at Larry's code example, GPSSource, it looks like you just have to add these to your source to get the KML plugin working:
protected static String[] coordinateChannelNames =
{"Alt", "Lat", "Lon", "TrackID", "Type", "Classification", "Speed", "Heading"};
Not too bad, think I'll try and add this to SMS-RBNB as a simplest-codebase exercise.
Man, tech writing is really hard
Submitted by hubbard on Wed, 03/05/2008 - 16:03.This morning I forced myself to sit down and grind out a brochure that we had just realized that we had to have. Before tomorrow 3PM local, no less. I used Pages to generate a simple tri-fold brochure, with lots of pictures, and it came out pretty well. Its on its way to the NSF and elsewhere, so hopefully the errors are tolerable!
I also linked it from http://dataturbine.org/content/documentation the documentation page.
Direct URL is http://dataturbine.org/files/dt%20brochure.pdf
Whew, Google Code migration almost complete
Submitted by hubbard on Fri, 02/29/2008 - 17:13.That took a lot of work! DataTurbine source code is now hosted on Google Code with their free project hosting. Project page is at http://code.google.com/p/dataturbine
I was able to svnsync the repositories after NEESit staff upgraded the neesforge svn server from 1.1 to 1.4 - thanks!
This gets us quite a few things - number one is Google's unmatched infrastructure. We've had uptime issues with neesforge and this should solve that.
We also get a wiki, bug tracker, much improved interface, and the added visibility. Win all around.
Adding GPS positional data to DataTurbine feeds
Submitted by hubbard on Thu, 02/28/2008 - 15:26.So I'm thinking about how to add GPS positioning to my hacked-up Apple accelerometer code, and vaguely remember gpsd from freshmeat. (Aside: Surf the RSS feeds from freshmeat now and then; there's always something interesting to see.)
Mesh networking with open-source hardware
Submitted by hubbard on Wed, 02/27/2008 - 11:31.Pablo Bryant asked about mesh networks for dataloggers,
MATLAB code for image handling
Submitted by hubbard on Wed, 02/20/2008 - 16:41.I've just added to Subversion a couple of new matlab routines to read and write (sink and source, respectively) JPEGs to and from DataTurbine. The code is known-buggy work-in-progress, but I wanted to commit so that others can try it out.
The Simple TCP/IP Messaging Protocol (STM) from National Instruments
Submitted by hubbard on Tue, 02/12/2008 - 12:09.NI has a protocol and code for efficient messaging over TCP/IP. The idea is to send a dictionary when you first connect, then binary messages subsequently for speed. Seems quite decent. I'm trying to decide if we should rework our NI DAQ protocol, and STM is a candidate. Since its an open protocol, we could use this for other interfaces too.
Current issues: Need a complete protocol spec so we can determine issues with other languages. In other words, it's easy in LabVIEW, but how much is a Java protocol engin?
STM intro: http://zone.ni.com/devzone/cda/tut/p/id/4095