override public SensorMeting GenerateRandomReading()
{
int leeftijd;
using (b2d4ziekenhuisContext context = new b2d4ziekenhuisContext())
{
leeftijd = context.Patient.Find(this.Sensor.PatientId).Leeftijd;
}
//Get healthy heart rate range for patient age
Tuple <int, int> range = hartslagen.Find(hartslag => leeftijd > hartslag["age"].Item1 && leeftijd <= hartslag["age"].Item2)["range"];
Random rnd = new Random();
//5% chance to be alarming value
if (rnd.Next(0, 100) > 5)
{
//normal value
double hartslag = range.Item1;
//Random number in range weighted to middle
for (int i = 0; i < 4; i++)
{
hartslag += rnd.NextDouble() * ((range.Item2 - range.Item1) / 4);
}
return(new SensorMeting()
{
SensorId = this.Sensor.SensorId,
MetingWaarde = hartslag
});
}
else
{
//Alarm reading
double hartslag = range.Item2 + 100 * this.randomFactor;
return(new SensorMeting()
{
SensorId = this.Sensor.SensorId,
MetingWaarde = hartslag,
Alarm = true
});
}
}
/// <summary>
/// Adds reading to database.
/// </summary>
private void AddReading(SensorMeting meting)
{
using (b2d4ziekenhuisContext context = new b2d4ziekenhuisContext())
{
//Check if sensor has not been deleted
if (context.Sensor.Find(this.Sensor.SensorId) == null)
{
//Sensor with this ID no longer exists, stop sensor
// TODO: Delete sensor in this case
Stop();
}
else if (meting != null)
{
//Sensor still exists, add data
context.SensorMeting.Add(meting);
context.SaveChanges();
Readings++;
}
}
}
private async void DataRefresh()
{
using (b2d4ziekenhuisContext context = new b2d4ziekenhuisContext())
{
await context.Sensor.ForEachAsync(sensor =>
{
//Check if the sensor already exists
VirtualSensor virtualSensor = ActiveSensors.Find(virtualSensor => virtualSensor.Sensor.SensorId == sensor.SensorId);
if (virtualSensor == null)
{
//Sensor does not yet exist, so make a new one
if (sensor.SensorType == 1)
{
ActiveSensors.Add(new Stappenteller(sensor));
}
else if (sensor.SensorType == 2)
{
ActiveSensors.Add(new Hartslagmeter(sensor));
}
else if (sensor.SensorType == 3)
{
ActiveSensors.Add(new Temperatuurmeter(sensor));
}
else if (sensor.SensorType == 4)
{
ActiveSensors.Add(new DeurAlarm(sensor));
}
else if (sensor.SensorType == 5)
{
ActiveSensors.Add(new MedicijnDispenser(sensor));
}
}
else
{
virtualSensor.UpdateSensor(sensor);
}
});
}
}
override public SensorMeting GenerateRandomReading()
{
Random rnd = new Random();
//max 5% chance that patient tries to leave the room, slightly randomized by sensor random value
if (rnd.Next(0, 100) < (1 + 4 * this.randomFactor))
{
//Check if person is allowed to leave the room
using (b2d4ziekenhuisContext context = new b2d4ziekenhuisContext())
{
if ((bool)context.Patient.Find(this.Sensor.PatientId).GeslotenKamer)
{
return(new SensorMeting()
{
SensorId = this.Sensor.SensorId,
MetingWaarde = 1,
Alarm = true
});
}
}
}
return(null);
}
