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New Metric Fatigue Index

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Looks at the max and min (non-zero) power values and
uses the difference between them to calculate a fatigue
index as a percentage.

i.e.
FI = (maxP - minP) / maxP * 100.00;

This is really only useful for targetted intervals as for
most riding there will always be a period of time where
the rider coasts or takes it easy.

We may look to improve it by smoothing or comparing to the
average power instead of minimum power.
This commit is contained in:
Mark Liversedge
2013-12-18 11:00:48 +00:00
parent 4249f45e3c
commit e5d85bdd0e
2 changed files with 44 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/DBAccess.cpp
View File

@@ -71,8 +71,9 @@
// 50 29 Oct 2013 Mark Liversedge Added percentage time in heartrate zone
// 51 05 Nov 2013 Mark Liversedge Added average aPower
// 52 05 Nov 2013 Mark Liversedge Added EOA - Effect of Altitude
// 53 18 Dec 2013 Mark Liversedge Added Fatigue Index (for power)
int DBSchemaVersion = 52;
int DBSchemaVersion = 53;
DBAccess::DBAccess(Context* context) : context(context), db(NULL)
{

42
src/PeakPower.cpp
View File

@@ -22,6 +22,46 @@
#include <math.h>
#include <QApplication>
class FatigueIndex : public RideMetric {
Q_DECLARE_TR_FUNCTIONS(FatigueIndex)
double maxp;
double minp;
public:
FatigueIndex() : maxp(0.0), minp(10000)
{
setType(RideMetric::Average);
setSymbol("power_fatigue_index");
setInternalName("Fatigue Index");
setName(tr("Fatigue Index"));
setMetricUnits(tr("%"));
setPrecision(1); // e.g. 99.9%
setImperialUnits(tr("%"));
}
void compute(const RideFile *ride, const Zones *, int,
const HrZones *, int,
const QHash<QString,RideMetric*> &,
const Context *) {
if (ride->dataPoints().isEmpty() || !ride->areDataPresent()->watts) {
// no data
setValue(0.0);
} else {
foreach(const RideFilePoint *point, ride->dataPoints()) {
if (point->watts < minp && point->watts != 0) minp = point->watts;
if (point->watts > maxp && point->watts != 0) maxp = point->watts;
}
if (minp > maxp) setValue(0.00); // minp wasn't changed, all zeroes?
else setValue(100 * ((maxp-minp)/maxp)); // as a percentage
}
}
RideMetric *clone() const { return new FatigueIndex(*this); }
};
class PeakPower : public RideMetric {
Q_DECLARE_TR_FUNCTIONS(PeakPower)
double watts;
@@ -474,6 +514,8 @@ class PeakPowerHr60m : public PeakPowerHr {
};
static bool addAllPeaks() {
RideMetricFactory::instance().addMetric(FatigueIndex()); // added here instead of new function
RideMetricFactory::instance().addMetric(PeakPower1s());
RideMetricFactory::instance().addMetric(PeakPower5s());
RideMetricFactory::instance().addMetric(PeakPower10s());