public override string GetStrongestTag(int timeout)
{
if (!IsConnected())
{
return("");
}
ThinkifyTagList locatedTags = DoBlockingInventory(timeout);
if (locatedTags != null)
{
ThinkifyTag bestTag = null;
float bestRSSI = -200;
foreach (ThinkifyTag tag in locatedTags)
{
if (tag.RSSI > bestRSSI)
{
bestTag = tag;
bestRSSI = tag.RSSI;
}
}
rfid3.TagList.Clear();
if (bestTag == null)
{
return(null);
}
return(bestTag.EPC);
}
return(null);
}
public ThinkifyReader(string port)
{
sC = new ThinkifySerialConnection(port);
TagList = new ThinkifyTagList();
//If a new line comes in
sC.LineReceivedEvent += new LineReceivedEventHandler(ProcessLine);
sC.DataReceivedEvent += new DataReceivedEventHandler(ProcessData);
ReadingActiveValue = false;
latestTag = new ThinkifyTag();
}
private void ProcessLine(object sender, LineReceivedEventArgs e)
{
TagList.ProcessReaderMessage(e.lineReceived);
if (e.lineReceived.IndexOf("TAG=") == 0)
{
ThinkifyTag t = new ThinkifyTag(e.lineReceived);
if (t.EPC != latestTag.EPC) // A new guy! Reset latest tag.
{
latestTag = t;
}
else
{ //It's the tag we've seen before. Just update the latestTag w/ the new data...
latestTag.Update(t);
}
TagReadEventArgs ev = new TagReadEventArgs(latestTag);
RaiseTagReadEvent(ev);
}
//Extended reads are enabled. -- update the data for the last tag seen.
if (e.lineReceived.IndexOf("XRD") == 0)
{
bool goodResult = latestTag.UpdateXRDData(e.lineReceived);
//goodResult = true; //TODO: Look at if we want to use this...
//OK, we'll only report a Xread event if we have a valid one...
if (goodResult) {
TagReadEventArgs ev = new TagReadEventArgs(latestTag);
//I can't _believe_ how poorly this language deals with moving from strings to other data types. REALLY?
ev.XReadIndex = int.Parse(e.lineReceived[3].ToString()); //Parse doesn't even deal w/Hex! How much "parse"ing is going on, then?
RaiseTagXReadEvent(ev);
}
}
}
public TagReadEventArgs(ThinkifyTag atag)
{
tag = atag;
this.XReadIndex = -1;
}
