User:ThomasT
From Openmoko
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== Additional GPS Functions == | == Additional GPS Functions == | ||
| − | + | === Altitude Plots === | |
| − | + | Of the travelled track and also of the upcoming (hopefully OSM will soon provide elevation information of the roads) | |
| − | + | === Trip Information === | |
| + | |||
| + | Garmin Etrex Legends trip information display is to stupid. I want infos for the current day and for the time since last break. | ||
| + | |||
| + | |||
| + | === Slope, Vertical Speed === | ||
| + | |||
| + | The GPS does not give sufficiently accurate vertical speed. | ||
| + | A barometric sensor would be nice. Calculation of the vertical speed by integrating the accelerometer readings also not accurate. | ||
| + | But maybe it is possible to use the accelerometers to measure the slope of the road. | ||
| + | How to calibrate it? Is it possible to automatically calibrate it from GSP reading? | ||
| + | |||
| + | === Sideward Inclination of the Bicycle === | ||
| + | |||
| + | By measuering the increase of the total acceleration not by change of the acceleration angle. | ||
Revision as of 21:53, 20 August 2008
Just ordered my FreeRunner.
I want to use it as bicycle computer.
These are just ideas and wishes - not worth to make a separate wiki page.
Contents |
Bicycle Computer
Power Supply
Due to the relatively high current consumption of the Freerunner a power supply from a hub dynamo seems to be unavoidable.
I have a evaluation board of a Linear Technologies step converter which I will use at the beginning.
GPS
- navit
- tangogps
Additional GPS Functions
Altitude Plots
Of the travelled track and also of the upcoming (hopefully OSM will soon provide elevation information of the roads)
Trip Information
Garmin Etrex Legends trip information display is to stupid. I want infos for the current day and for the time since last break.
Slope, Vertical Speed
The GPS does not give sufficiently accurate vertical speed. A barometric sensor would be nice. Calculation of the vertical speed by integrating the accelerometer readings also not accurate. But maybe it is possible to use the accelerometers to measure the slope of the road. How to calibrate it? Is it possible to automatically calibrate it from GSP reading?
Sideward Inclination of the Bicycle
By measuering the increase of the total acceleration not by change of the acceleration angle.
