/// Step A - PREPROCESS
public void preprocessAlgoData(string currentPatientID)
{
/// 1. Get latest sample
SampleController sampleController = new SampleController();
latestSample = sampleController.GetLatestSampleForPatient(currentPatientID);
//insert caregivers to caregiversArr
PatientController patientController = new PatientController();
caregiversArr = patientController.GetCaregiversforPatientID(currentPatientID);
//extract patient's known locations
LocationController locationController = new LocationController();
knownLocations = locationController.GetKnownLocationsforPatientID(currentPatientID);
//get latest sample time
sampleTime = latestSample.CreatedAt.Value;
//get avg patient's HR, and set our limits
AVG_PATIENT_HR = AlgoUtils.avgHeartRate(currentPatientID);
HEART_RATE_BOTTOM_LIMIT = 1.7 * AVG_PATIENT_HR;
HEART_RATE_TOP_LIMIT = 0.5 * AVG_PATIENT_HR;
}
/// Step A - PREPROCESS
public void preprocessAlgoData(string currentPatientID)
{
Trace.TraceInformation(String.Format("Current PatientID is {0}", currentPatientID));
/// 1. Get latest sample
SampleController sampleController = new SampleController();
latestSample = sampleController.GetLatestSampleForPatient(currentPatientID);
Trace.TraceInformation(String.Format("Latest sample timestamp is {0}", latestSample.CreatedAt));
//insert caregivers to caregiversArr
PatientController patientController = new PatientController();
CaregiverController caregiverController = new CaregiverController();
caregiversArr = caregiverController.GetCaregiversforPatientID(currentPatientID);
patientName = patientController.GetPatientName(currentPatientID);
Trace.TraceInformation(String.Format("Patient name is {0}", patientName));
Trace.TraceInformation(String.Format("Caregivers array first email is {0}", (caregiversArr.First()).Email));
//extract patient's known locations
LocationController locationController = new LocationController();
knownLocations = locationController.GetKnownLocationsforPatientID(currentPatientID);
Trace.TraceInformation(String.Format("Found {0} known locations for this patient", knownLocations.Length));
Trace.TraceInformation(String.Format("First known location is {0}", knownLocations[0].Description));
//set currentLoc and closestKnowLocation
currentLoc = new GeoCoordinate(latestSample.Latitude, latestSample.Longitude);
closestKnownLocation = AlgoUtils.closestKnownLocation(currentLoc, knownLocations);
Trace.TraceInformation(String.Format("Current location is {0}", currentLoc.ToString()));
Trace.TraceInformation(String.Format("Closest known location is {0}", closestKnownLocation.Description));
Trace.TraceInformation(String.Format("Current world time is {0}", DateTime.Now));
//get latest sample time
sampleTime = latestSample.CreatedAt.Value;
Trace.TraceInformation(String.Format("Latest sample time is {0}", sampleTime));
//get avg patient's HR, and set our limits
AVG_PATIENT_HR = AlgoUtils.avgHeartRate(currentPatientID);
HEART_RATE_TOP_LIMIT = 1.4 * AVG_PATIENT_HR;
HEART_RATE_BOTTOM_LIMIT = 0.5 * AVG_PATIENT_HR;
Trace.TraceInformation(String.Format("Avg patient heartrate is {0}", AVG_PATIENT_HR));
Trace.TraceInformation(String.Format("BottomLimit patient heartrate is {0}", HEART_RATE_BOTTOM_LIMIT));
Trace.TraceInformation(String.Format("TopLimit patient heartrate is {0}", HEART_RATE_TOP_LIMIT));
}
public static Location closestKnownLocation(GeoCoordinate currentLoc, Location[] knownLocations)
{
GeoCoordinate otherLoc = new GeoCoordinate(knownLocations[0].Latitude, knownLocations[0].Longitude);
double minDistToKnownLocation = AlgoUtils.calcDist(currentLoc, otherLoc);
Location closestKnownLocation = knownLocations[0];
double currentDist;
for (int i = 1; i < knownLocations.Length; i++)
{
otherLoc.Latitude = knownLocations[i].Latitude;
otherLoc.Longitude = knownLocations[i].Longitude;
currentDist = AlgoUtils.calcDist(currentLoc, otherLoc);
if (currentDist < minDistToKnownLocation)
{
minDistToKnownLocation = currentDist;
closestKnownLocation = knownLocations[i];
}
}
return(closestKnownLocation);
}
/// Step B - MONITORING
public AlgoUtils.Status monitorAndAlert(string currentPatientID)
{
//***************** SETUP *****************//
bool lessThanHalf = false;
bool lessThan2 = false;
bool lessThan5 = false;
bool lessThan10 = false;
double minDistToKnownLocation = AlgoUtils.calcDist(currentLoc, new GeoCoordinate(closestKnownLocation.Latitude, closestKnownLocation.Longitude));
Trace.TraceInformation(String.Format("Dist to closest known location is {0}", minDistToKnownLocation));
//get normal time range parameters for closest known location
int[] timeRangeParameters = AlgoUtils.getSafeTimeRangeForLocation(latestSample, currentPatientID);
bottomNormalTimeRange = timeRangeParameters[0];
topNormalTimeRange = timeRangeParameters[1];
avgNormalTimeRange = timeRangeParameters[2];
Trace.TraceInformation(String.Format("bottom normal time range is {0}", bottomNormalTimeRange));
Trace.TraceInformation(String.Format("top normal time range is {0}", topNormalTimeRange));
Trace.TraceInformation(String.Format("avg normal time range is {0}", avgNormalTimeRange));
if (minDistToKnownLocation <= 10)
{
lessThan10 = true;
}
if (minDistToKnownLocation <= 5)
{
lessThan5 = true;
}
if (minDistToKnownLocation <= 2)
{
lessThan2 = true;
}
if (minDistToKnownLocation <= 0.5)
{
lessThanHalf = true;
}
//*****************************************//
if ((DateTime.Now.Hour - sampleTime.Hour) > CONNECTION_LOST_TIME_DIF)
{
return(AlgoUtils.Status.ConnectionLost);
}
Trace.TraceInformation(String.Format("latest sample hour is: {0}", sampleTime.Hour));
AlgoUtils.HeatMapDensity measuredDensity = AlgoUtils.heatMapAreaDensityLevel(currentLoc);
if (lessThanHalf) //patient is very close to a known location
{
//time doesn't matter, just make sure heartRate is okay
if (AlgoUtils.isHeartRateInSafeRange(latestSample.HeartRate))
{
Trace.TraceInformation(String.Format("less than half, heart is okay - Safety"));
return(AlgoUtils.Status.Safety);
}
else
{
Trace.TraceInformation(String.Format("less than half, heart is BAD - Distress"));
return(AlgoUtils.Status.Distress); //potential distress or heart issues
}
}
//check if it's an emergency time period
else if (AlgoUtils.isTimeInSafeRange(sampleTime.Hour) == false)
{
//patient is not close enough to a known location + it's currently the EMERGENCY TIME PERIOD
Trace.TraceInformation(String.Format("more than half, EMERGENCY TIME PERIOD - Risk"));
return(AlgoUtils.Status.Risk);
}
else if (lessThan2 || measuredDensity == AlgoUtils.HeatMapDensity.High)
{
//patient is somewhat close to a known location, not in a dangerous time
if (AlgoUtils.isHeartRateInSafeRange(latestSample.HeartRate))
{
Trace.TraceInformation(String.Format("less than 2, normal time, heart is okay - Safety"));
return(AlgoUtils.Status.Safety);
//if (AlgoUtils.isTimeInNormalRange(sampleTime.Hour))
//{
// Trace.TraceInformation(String.Format("less than 2, normal time, heart is okay - Safety"));
// return AlgoUtils.Status.Safety;
//}
//else
//{
// Trace.TraceInformation(String.Format("less than 2, BAD time, heart is okay - Wandering"));
// return AlgoUtils.Status.Wandering;
//}
}
else
{
Trace.TraceInformation(String.Format("less than 2, heart is BAD - Distress"));
return(AlgoUtils.Status.Distress); //potential distress or heart issues
}
}
else if (lessThan5 || measuredDensity == AlgoUtils.HeatMapDensity.Medium)
{
//patient is not too far from a known location
if (AlgoUtils.isHeartRateInSafeRange(latestSample.HeartRate))
{
if (AlgoUtils.isTimeInNormalRange(sampleTime.Hour) == false ||
(sampleTime.Hour < avgNormalTimeRange * 0.6 || (sampleTime.Hour > avgNormalTimeRange * 1.4)))
{
Trace.TraceInformation(String.Format("less than 5, BAD time, heart is okay - Wandering"));
return(AlgoUtils.Status.Wandering);
}
}
else
{
Trace.TraceInformation(String.Format("less than 5, heart is BAD - Distress"));
return(AlgoUtils.Status.Distress); //potential distress or heart issues
}
}
else if (lessThan10 || measuredDensity == AlgoUtils.HeatMapDensity.Low)
{
//patient is somewhat far from a known location
if (AlgoUtils.isHeartRateInSafeRange(latestSample.HeartRate))
{
Trace.TraceInformation(String.Format("less than 10, heart is okay - Wandering"));
return(AlgoUtils.Status.Wandering);
}
else
{
Trace.TraceInformation(String.Format("less than 10, heart is BAD - Distress"));
return(AlgoUtils.Status.Distress); //potential distress or heart issues
}
}
//patient is very far from a known location, and in probably ZERO-Density area in heat map
//patient is possibly lost!
Trace.TraceInformation(String.Format("more than 10 - Risk"));
return(AlgoUtils.Status.Risk);
/// 2.4 Default: sample.location>10km from known location OR in never visited before poligon on heatmap
/// 2.4.1 send PUSH to caregiver - "Your beloved John is at (sample.location) area - do you know it?"
/// 2.4.1.1 if caregiver knows it then let him add location as known location (with desc. etc.)
/// 2.4.1.2 else if caregiver marks patient as wandering then enter POSSIBLE_RISK_MODE
}
/// **notice: T1>T2>T3**
///////////////TO BE CALLED FROM SERVER//////////////
public void wanderingDetectionAlgo(string currentPatientID)
{
Trace.AutoFlush = true;
patientID = currentPatientID;
if (AlgoUtils.learningStage(currentPatientID)) //if less than 200 samples
{
//case Learning
Trace.TraceInformation(String.Format("Patient status is {0}", AlgoUtils.Status.Learning.ToString()));
PatientController patientController = new PatientController();
CaregiverController caregiverController = new CaregiverController();
caregiversArr = caregiverController.GetCaregiversforPatientID(currentPatientID);
patientName = patientController.GetPatientName(currentPatientID);
NotificationHub.static_send(patientID, patientName, caregiversArr, AlgoUtils.Status.Learning);
return;
}
preprocessAlgoData(currentPatientID); //update latest sample for our patient & his caregiversArr
Trace.TraceInformation(String.Format("Preprocess stage is finished"));
AlgoUtils.Status patientStatus = monitorAndAlert(currentPatientID); //main business logic
Trace.TraceInformation(String.Format("Monitor and alert stage is done"));
Trace.TraceInformation(String.Format("Patient status is {0}", patientStatus));
//Call2Action
switch (patientStatus)
{
case AlgoUtils.Status.Safety:
{
NotificationHub.static_send(patientID, patientName, caregiversArr, patientStatus);
//AlgoUtils.sendSMS(caregiversArr, patientStatus);
//TODO:SAFETY stuff
break;
}
case AlgoUtils.Status.Wandering:
{
NotificationHub.static_send(patientID, patientName, caregiversArr, patientStatus);
//AlgoUtils.sendSMS(caregiversArr, patientStatus);
//TODO:WANDERING stuff
/// Step C - POSSIBLE_WANDERING_MODE
/// 1. send PUSH to caregiver - "Do you know your beloved John is currently at (sample.location)?
/// It's a strange time for him to be there"
/// 1.1 if caregiver knows then
/// 1.1.1 add sample.time to sample.location (if it's not happening automatically)
/// 1.1.2 enter MONITORING_MODE
/// 1.2 else if caregiver marks patient as wandering then enter POSSIBLE_RISK_MODE
break;
}
case AlgoUtils.Status.Distress:
{
NotificationHub.static_send(patientID, patientName, caregiversArr, patientStatus);
//AlgoUtils.sendSMS(caregiversArr, patientStatus);
//TODO:DISTRESS stuff
/// Step D - POSSIBLE_DISTRESS_MODE
/// 1. send PUSH to caregiver - "Your beloved John is currently at (sample.location)?
/// His heartrate is a bit abnormal - please contact him"
/// 2. after 2 minutes send PUSH to caregiver - "Is your beloved John okay?"
/// 1.1 if caregiver says he's okay, enter MONITORING_MODE
/// 1.2 else enter POSSIBLE_RISK_MODE
break;
}
case AlgoUtils.Status.Risk:
{
NotificationHub.static_send(patientID, patientName, caregiversArr, patientStatus);
//AlgoUtils.sendSMS(caregiversArr, patientStatus);
//TODO:RISK stuff
/// Step E - POSSIBLE_RISK_MODE
/// 1. Speed up sample rate (?) - every 1-3 minutes
/// 2. Notify all patient's caregivers
/// 3. Speak to patient (?)
/// 4. Open patient's microphone and transmit to caregivers
/// 5. Make alarm sounds - "I need help" - so passbyers can quickly assist (?)
/// 6. When caregiver hits "I'm safe" button - enter MONITORING_MODE (can also mark I'm safe remotely?)
break;
}
case AlgoUtils.Status.ConnectionLost:
{
NotificationHub.static_send(patientID, patientName, caregiversArr, patientStatus);
//TODO: connectionLost stuff
break;
}
}
}
/// Step B - MONITORING_MODE
///
public AlgoUtils.Status monitorAndAlert(string currentPatientID, Sample latestSample)
{
//***************** SETUP *****************//
bool lessThanHalf = false;
bool lessThan2 = false;
bool lessThan5 = false;
bool lessThan10 = false;
GeoCoordinate currentLoc = new GeoCoordinate(latestSample.Latitude, latestSample.Longitude);
Location closestKnownLocation = AlgoUtils.closestKnownLocation(currentLoc, knownLocations);
double minDistToKnownLocation = AlgoUtils.calcDist(currentLoc, new GeoCoordinate(closestKnownLocation.Latitude, closestKnownLocation.Longitude));
//get normal time range parameters for closest known location
int[] timeRangeParameters = AlgoUtils.getSafeTimeRangeForLocation(closestKnownLocation, currentPatientID);
bottomNormalTimeRange = timeRangeParameters[0];
topNormalTimeRange = timeRangeParameters[1];
avgNormalTimeRange = timeRangeParameters[2];
if (minDistToKnownLocation <= 10)
{
lessThan10 = true;
}
if (minDistToKnownLocation <= 5)
{
lessThan5 = true;
}
if (minDistToKnownLocation <= 2)
{
lessThan2 = true;
}
if (minDistToKnownLocation <= 0.5)
{
lessThanHalf = true;
}
//*****************************************//
if (lessThanHalf) //patient is very close to a known location
{
//time doesn't matter, just make sure heartRate is okay
if (AlgoUtils.isHeartRateInSafeRange(latestSample.HeartRate))
{
return(AlgoUtils.Status.Safety);
}
else
{
return(AlgoUtils.Status.Distress); //potential distress or heart issues
}
}
//check if it's an emergency time period
else if (AlgoUtils.isTimeInSafeRange(sampleTime.Hour) == false)
{
//patient is not close enough to a known location + it's currently the EMERGENCY TIME PERIOD
return(AlgoUtils.Status.Risk);
}
else if (lessThan2 || AlgoUtils.isInDensedHeatMapArea(currentLoc) == AlgoUtils.HeatMapDensity.High)
{
//patient is somewhat close to a known location, not in a dangerous time
if (AlgoUtils.isHeartRateInSafeRange(latestSample.HeartRate))
{
if (AlgoUtils.isTimeInNormalRange(sampleTime.Hour) == false)
{
return(AlgoUtils.Status.Safety);
}
else
{
return(AlgoUtils.Status.Wandering);
}
}
else
{
return(AlgoUtils.Status.Distress); //potential distress or heart issues
}
}
else if (lessThan5 || AlgoUtils.isInDensedHeatMapArea(currentLoc) == AlgoUtils.HeatMapDensity.Medium)
{
//patient is not too far from a known location
if (AlgoUtils.isHeartRateInSafeRange(latestSample.HeartRate))
{
if (AlgoUtils.isTimeInNormalRange(sampleTime.Hour) == false ||
(sampleTime.Hour < avgNormalTimeRange * 0.6 || (sampleTime.Hour > avgNormalTimeRange * 1.4)))
{
return(AlgoUtils.Status.Wandering);
}
}
else
{
return(AlgoUtils.Status.Distress); //potential distress or heart issues
}
}
else if (lessThan10 || AlgoUtils.isInDensedHeatMapArea(currentLoc) == AlgoUtils.HeatMapDensity.Low)
{
//patient is somewhat far from a known location
if (AlgoUtils.isHeartRateInSafeRange(latestSample.HeartRate))
{
return(AlgoUtils.Status.Wandering);
}
else
{
return(AlgoUtils.Status.Distress); //potential distress or heart issues
}
}
//patient is very far from a known location, and in probably ZERO-Density area in heat map
//patient is possibly lost!
return(AlgoUtils.Status.Risk);
/// 2.4 Default: sample.location>10km from known location OR in never visited before poligon on heatmap
/// 2.4.1 send PUSH to caregiver - "Your beloved John is at (sample.location) area - do you know it?"
/// 2.4.1.1 if caregiver knows it then let him add location as known location (with desc. etc.)
/// 2.4.1.2 else if caregiver marks patient as wandering then enter POSSIBLE_RISK_MODE
}
