private void PollSensors(ThreadPoolTimer timer)
{
float?angle1 = AccP1?.GetAngle();
float?pressure1 = BarP1?.GetPressure();
float?angle2 = AccP2?.GetAngle();
float?pressure2 = BarP2?.GetPressure();
if (currTest != null)
{
if (angle1 == null)
{
// Alert user
}
else
{
float volume = AngleToVolumeConversion * (float)angle1;
currTest.VolumeDataP1.Add(volume);
}
if (angle2 == null)
{
// Alert user
}
else
{
float volume = AngleToVolumeConversion * (float)angle2;
currTest.VolumeDataP2.Add(volume);
}
if (pressure1 == null)
{
// Alert user
}
else
{
currTest.PressureDataP1.Add((float)pressure1);
}
if (pressure2 == null)
{
// Alert user
}
else
{
currTest.PressureDataP2.Add((float)pressure2);
}
}
if ((Application.Current as App).ComService != null)
{
angle1 = angle1 == null ? 0 : angle1;
(Application.Current as App).ComService.SendVolumeUpdate(AngleToVolumeConversion * (float)angle1, Enums.Patient.A);
angle2 = angle2 == null ? 0 : angle2;
(Application.Current as App).ComService.SendVolumeUpdate(AngleToVolumeConversion * (float)angle2, Enums.Patient.B);
pressure1 = pressure1 == null ? 0 : pressure1;
(Application.Current as App).ComService.SendPressureUpdate((float)pressure1, Enums.Patient.A);
pressure2 = pressure2 == null ? 0 : pressure2;
(Application.Current as App).ComService.SendPressureUpdate((float)pressure2, Enums.Patient.B);
}
if (pressure1 < NextPeep1)
{
NextPeep1 = (float)pressure1;
}
if (pressure2 < NextPeep2)
{
NextPeep2 = (float)pressure2;
}
if (angle1 != null)
{
float volume = AngleToVolumeConversion * (float)angle1;
float deriv = volume - PrevVolume1;
PrevVolume1 = volume;
VolDeriv1 = (VolDeriv1 + deriv) / 2;
if (volume < CurrMinVol1)
{
CurrMinVol1 = volume;
}
if (volume > CurrMaxVol1)
{
CurrMaxVol1 = volume;
}
if (InhaleExhale) // Inhaling
{
if (VolDeriv1 < -0.001)
{
InhaleExhale = false;
MaxVol1 = CurrMaxVol1;
CurrMinVol1 = float.MaxValue;
var lastChange = LastChange1;
LastChange1 = PollCounter;
var currDiff = PollCounter - lastChange; // Time to inhale
var ie = currDiff / ((float)LastDiff1);
LastDiff1 = currDiff;
(Application.Current as App)?.ComService?.SendIEUpdate(ie, Enums.Patient.A);
(Application.Current as App)?.ComService?.SendTVUpdate(MaxVol1 - MinVol1, Enums.Patient.A);
}
}
else // Exhaling
{
if (VolDeriv1 > 0.001)
{
InhaleExhale = true;
MinVol1 = CurrMinVol1;
CurrMaxVol1 = float.MinValue;
var lastChange = LastChange1;
LastChange1 = PollCounter;
var currDiff = PollCounter - lastChange; // Time to inhale
var ie = ((float)LastDiff1) / currDiff;
LastDiff1 = currDiff;
(Application.Current as App)?.ComService?.SendIEUpdate(ie, Enums.Patient.A);
(Application.Current as App)?.ComService?.SendTVUpdate(MaxVol1 - MinVol1, Enums.Patient.A);
}
}
}
if (angle2 != null)
{
float volume = AngleToVolumeConversion * (float)angle2;
float deriv = volume - PrevVolume2;
PrevVolume2 = volume;
VolDeriv2 = (VolDeriv2 + deriv) / 2;
if (volume < CurrMinVol2)
{
CurrMinVol2 = volume;
}
if (volume > CurrMaxVol2)
{
CurrMaxVol2 = volume;
}
if (InhaleExhale) // Inhaling
{
if (VolDeriv2 < -0.001)
{
InhaleExhale = false;
MaxVol2 = CurrMaxVol2;
CurrMinVol2 = float.MaxValue;
var lastChange = LastChange2;
LastChange2 = PollCounter;
var currDiff = PollCounter - lastChange; // Time to inhale
var ie = currDiff / ((float)LastDiff2);
LastDiff2 = currDiff;
(Application.Current as App)?.ComService?.SendIEUpdate(ie, Enums.Patient.B);
(Application.Current as App)?.ComService?.SendTVUpdate(MaxVol2 - MinVol2, Enums.Patient.B);
}
}
else // Exhaling
{
if (VolDeriv2 > 0.001)
{
InhaleExhale = true;
MinVol2 = CurrMinVol2;
CurrMaxVol2 = float.MinValue;
var lastChange = LastChange2;
LastChange2 = PollCounter;
var currDiff = PollCounter - lastChange; // Time to inhale
var ie = ((float)LastDiff2) / currDiff;
LastDiff2 = currDiff;
(Application.Current as App)?.ComService?.SendIEUpdate(ie, Enums.Patient.B);
(Application.Current as App)?.ComService?.SendTVUpdate(MaxVol2 - MinVol2, Enums.Patient.B);
}
}
}
if (PollCounter % NextValueBecomesCurrValue == 0)
{
CurrPeep1 = NextPeep1;
CurrPeep2 = NextPeep2;
(Application.Current as App)?.ComService?.SendPeepUpdate(CurrPeep1, Enums.Patient.A);
(Application.Current as App)?.ComService?.SendPeepUpdate(CurrPeep2, Enums.Patient.B);
NextPeep1 = float.MaxValue;
NextPeep2 = float.MaxValue;
}
PollCounter++;
}