public DeviceModel(DeviceModel d)
{
Id = d.Id;
Mac = d.Mac;
Name = d.Name;
XLocation = d.XLocation;
YLocation = d.YLocation;
RSSValue = d.RSSValue;
Property = new PropertyModel(d.Property);
}
static void Main(string[] args)
{
Manager _manager = new WifiLocalization.Manager();
DeviceModel User = new DeviceModel();
List<LocationModel> OfflineMapList = new List<LocationModel>();
string xlPath = "C:/Users/Tarek/Desktop/ResearchLab_Database_6x7.xls";
for (int i = 1; i <= 2; i++)
{
LocationModel Offline = new LocationModel();
Offline.XValue = Helper.ObjectToDouble(_manager.ReadOfflineDB(xlPath, i, "K4:K45"));
Offline.YValue = Helper.ObjectToDouble(_manager.ReadOfflineDB(xlPath, i, "L4:L45"));
char ch = 'B';
for (int j = 1; j <= 5; j++)
{
Offline.RSSValueList.Add(Helper.ObjectToDouble(_manager.ReadOfflineDB(xlPath, i, ch + "4:" + ch++ + "45")));
}
OfflineMapList.Add(Offline);
}
User.Mac = "AA:BB:CC:DD";
User.Name = "TestUser";
User.Property.KNN = 3;
User.Property.Threshold = 1;
User.Property.Exponent = 2;
User.RSSValue = new double[OfflineMapList[0].RSSValueList.Count()];
for (int i = 0; i < OfflineMapList[0].RSSValueList.Count(); i++)
{
User.RSSValue[i] = OfflineMapList[0].RSSValueList[i][0];
}
User.GetLocation(OfflineMapList[0]);
double[] u1 = new double[] { };
double[] u2 = new double[] { };
User.GetStatistics(Helper.Magnitude(u1, u2),
Helper.Magnitude(OfflineMapList[0].XValue, OfflineMapList[0].YValue));
User.DisplayInfo();
User.Property.DisplayInfo();
//user.GetLocation();
Console.ReadKey();
}
public DeviceModel KNearestNeighbor(DeviceModel user, LocationModel Offline)
{
Dictionary<int, Double> dist = new Dictionary<int, double>();
List<Double[]> ap = Offline.RSSValueList;
Double[] us = user.RSSValue;
int knn = user.Property.KNN;
int exp = user.Property.Exponent;
int uNum = us.Length;
int apNum = ap.Count();
int locNum = ap[0].Length;
double sum;
double invExp = 1 / (double)exp;
for (int j = 0; j < locNum; j++)
{
sum = 0;
for (int i = 0; i < apNum; i++)
{
sum += Math.Pow(us[i] - ap[i][j], exp);
}
dist.Add(j, Math.Pow(sum, invExp));
}
var results = dist.OrderBy(i => i.Value).Take(knn);
double x = 0, y = 0;
foreach (KeyValuePair<int, double> result in results)
{
x += Offline.XValue[result.Key];
y += Offline.YValue[result.Key];
}
DeviceModel KNNResult = new DeviceModel(user);
KNNResult.XLocation = x / knn;
KNNResult.YLocation = y / knn;
return KNNResult;
}
public DeviceModel KNearestNeighbor(DeviceModel user, LocationModel Offline)
{
Dictionary <int, Double> dist = new Dictionary <int, double>();
List <Double[]> ap = Offline.RSSValueList;
Double[] us = user.RSSValue;
int knn = user.Property.KNN;
int exp = user.Property.Exponent;
int uNum = us.Length;
int apNum = ap.Count();
int locNum = ap[0].Length;
double sum;
double invExp = 1 / (double)exp;
for (int j = 0; j < locNum; j++)
{
sum = 0;
for (int i = 0; i < apNum; i++)
{
sum += Math.Pow(us[i] - ap[i][j], exp);
}
dist.Add(j, Math.Pow(sum, invExp));
}
var results = dist.OrderBy(i => i.Value).Take(knn);
double x = 0, y = 0;
foreach (KeyValuePair <int, double> result in results)
{
x += Offline.XValue[result.Key];
y += Offline.YValue[result.Key];
}
DeviceModel KNNResult = new DeviceModel(user);
KNNResult.XLocation = x / knn;
KNNResult.YLocation = y / knn;
return(KNNResult);
}
private DeviceModel WKNearestNeighbor(DeviceModel user, LocationModel offline)
{
return WifiLocalization.Implement.Instance.WKNearestNeighbor();
}
public DeviceModel GetLocation(DeviceModel user, LocationModel offline)
{
return KNearestNeighbor(user, offline);
// return WKNearestNeighbor(user, offline);
}