public void Test_Common()
{
// DS18B20: -55°C до +125°C, ±0.5°C
var instance = new SDCompression(0.5, 3600);
Assert.IsNotNull(instance);
DateTime timestamp;
double value;
timestamp = new DateTime(2019, 08, 02, 20, 00, 00);
value = 22.0;
Assert.AreEqual(true, instance.ReceivePoint(ref timestamp, ref value));
var timestamp2 = new DateTime(2019, 08, 02, 20, 00, 01);
var value2 = 22.1;
Assert.AreEqual(false, instance.ReceivePoint(ref timestamp2, ref value2));
timestamp = new DateTime(2019, 08, 02, 20, 00, 02);
value = 23.8;
Assert.AreEqual(true, instance.ReceivePoint(ref timestamp, ref value));
Assert.AreEqual(timestamp2, timestamp);
Assert.AreEqual(value2, value);
}
public void ReceivePointValue(int pointId, DateTime timestamp, double value)
{
TSPoint point = fDB.Get <TSPoint>(pointId);
SDCompression compression;
if (!fCompressionCache.TryGetValue(pointId, out compression))
{
compression = new SDCompression(point.Deviation, 60 * 10); // default: 60sec * 10min
fCompressionCache.Add(pointId, compression);
}
if (compression.ReceivePoint(ref timestamp, ref value))
{
string tableName = point.GetDataTableName();
InsertValue(tableName, timestamp, value);
}
}
public double GetCurrentValue(int pointId)
{
TSPoint point = fDB.Get <TSPoint>(pointId);
SDCompression compression;
if (!fCompressionCache.TryGetValue(pointId, out compression))
{
compression = new SDCompression(point.Deviation, 60 * 10); // default: 60sec * 10min
fCompressionCache.Add(pointId, compression);
}
if (compression != null)
{
return(compression.CurrentPoint.Value);
}
return(double.NaN);
}
