status : release notes July 06, 2008 - 01:16 WGST

0.8.0 2007-06-18
  • Re-organized Status area a little. The Power index page, also called production, now shows production figures for the two power sources, plus a table showing the monthly energy usage.
    The status:power page has a navigation bar specific to it that mainly divided production and consumption. The consumption page is the old index page, which lists the power meters.
    There are two plots available from this page: Meters and Wind.

0.7.1 2007-06-14
  • Fixed weather page to update again
  • Fixed custom power graphing range

0.7.0 2007-06-13
  • Added Wind page.
  • Fixed timezone issue of power reporting and graphing
  • Change colors, scales, and labeling of Power graphs
  • Converted page display times to %B %d, %Y - %H:%M %Z format

0.6.0 2006-02-03
  • Add Weather and network sections. These are a work in progress at this time.

0.5.0 2006-01-25
  • Redesigned Status:Power Meters to respond immediately. The page was becoming slower and slower as more readings accumulate in the database. Now the current reading is saved in a new database table to expedite lookups.

0.4.1 2006-01-11
  • Revised Power:Plots X scale to span exactly the width of the time. Previously the X axis was autoscaled by matplotlib which created a lot (25%) of blank (wasted) space before and after the data. Now the data line completely fills the graphing space.

0.4.0 2006-01-10
  • Overhauled Power:Plots to use matplotlib rather than Gnuplot for generating the graphs. Matplotlib is the plotting tool Todd uses so it makes sense for us to use same tool. (Todd)
  • Revised Power:Plots background color to white. (Roy)
  • Revised Power:Plots smoothing algorithm from a bezier curve to a weighted average. Matplotlib does not have any built-in smoothing curves like the bezier smoothing Gnuplot has so I implemented a simple weighted average smoothing for the matplotlib curves. The result, for better or worse, is quite different.

0.3.1 2006-01-05
  • Revised Power:Plots Day xrange from "HH:MM" to "mm/dd HH:MM". Without the day/month one assumes the plot is for today, but the plot could be quite old.
  • Revised Power:Plots Month xrange from "mm/dd/YY" to "mm/dd". Having the year causes the labels to overlap and become unreadable; the year is fairly obvious.

0.3.0 2005-12-23
  • Increased measurement frequency to approximately every ten seconds to better characterize peaks. (Tracy/Larry)
    Currently the measurements take about five seconds to complete, and then there is five seconds of wait time before the next measurement begins. It may be possible to reduce the measurement time to about three seconds and set the wait time to two seconds to yield a five second interval if that is required.
  • Added virtual power meter "Generator Module". (Larry)
    This reports the Generator Total minus the sum of the other meters. The voltages are not subtracted; the voltage is that of the Generator Total meter. The currents and power are subtracted. The kW-Hrs and Max Demand values are not applicable. Note the real meters are not interrogated simultaneously since they are on the same RS-485 bus; the measurement takes 0.5 seconds per meter. The calculated result of the virtual meter is affected by the lag and sometimes yields negative values. This is not cold fusion at work.
  • status:power:plots: Added custom plotting range. (Larry)
    One can choose a time window to create plots focusing in on events to show more detail than the Day plots show. Any time window can be chosen, however these plots are created real-time and the time it takes to create them is linear with the width of the time window. (The Month/Week/Day plots are updated by a background process to be available immediately.)
  • status:power:plots: Changed default smoothing to Off. (Roy/Larry)
  • status:power:query:results -> browser: 1) added seconds to Datetime column, 2) added kW-Hrs column (Larry), 3) Added border to the table. (Andrew), 4) Fixed time selection, was PST, now is UTC.
  • status:power:query:results -> file: added Datetime column, added kW-Hrs column. (Larry)
  • status:power:plots: Changed image sizes from 640W x 240H to 640W x 180H to fit more plots per printed page. (Roy)
  • status:power:query:results: Added notification when a meter is not selected, or when a time range does not include any data. There were no such warnings leading users to think there was a bug. (Roy)

0.2.1 2005-12-19
  • Fixed times, which were reported in PST timezone. They are now reported in the timezone of the meter location: UTC for summitcamp.

0.2.0 2005-12-16
  • Embedded status pages within a general summitcamp structure intended to replace the existing www.summitcamp.org ZOPE technology with Turbogears.
  • Implemented navigation framework along the lines of the ivotuk-test design, including the CSS.
  • Added Power Plots. The current functionality provides power, voltage, and current plots for the periods day, week, or month. The canned gnuplot bezier smoothing algorithm may be applied to any of the plots.
  • Added Power Query. Provides extraction of the raw power data from the database. One selects the meter, time range, and output: browser or file.

0.1.0 2005-12-09
Initial. Basic layout with power status