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ardupilot/Tools/ArdupilotMegaPlanner/HIL/XPlane.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
namespace ArdupilotMega.HIL
{
class XPlane : Hil
{
Socket SimulatorRECV;
UdpClient XplanesSEND;
EndPoint Remote = (EndPoint)(new IPEndPoint(IPAddress.Any, 0));
// place to store the xplane packet data
float[][] DATA = new float[113][];
public override void SetupSockets(int recvPort, int SendPort, string simIP)
{
// setup receiver
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, recvPort);
SimulatorRECV = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.Udp);
SimulatorRECV.Bind(ipep);
UpdateStatus(-1, "Listerning on port UDP " + recvPort + " (sim->planner)\n");
// setup sender
XplanesSEND = new UdpClient(simIP, SendPort);
UpdateStatus(-1, "Sending to port UDP " + SendPort + " (planner->sim)\n");
setupXplane();
UpdateStatus(-1, "Sent xplane settings\n");
}
public override void Shutdown()
{
try
{
SimulatorRECV.Close();
}
catch { }
try
{
XplanesSEND.Close();
}
catch { }
}
public override void GetFromSim(ref sitl_fdm sitldata)
{
if (SimulatorRECV.Available > 0)
{
byte[] udpdata = new byte[1500];
int receviedbytes = 0;
try
{
while (SimulatorRECV.Available > 0)
{
receviedbytes = SimulatorRECV.ReceiveFrom(udpdata, ref Remote);
}
}
catch { }
if (udpdata[0] == 'D' && udpdata[1] == 'A')
{
// Xplanes sends
// 5 byte header
// 1 int for the index - numbers on left of output
// 8 floats - might be useful. or 0 if not
int count = 5;
while (count < receviedbytes)
{
int index = BitConverter.ToInt32(udpdata, count);
DATA[index] = new float[8];
DATA[index][0] = BitConverter.ToSingle(udpdata, count + 1 * 4); ;
DATA[index][1] = BitConverter.ToSingle(udpdata, count + 2 * 4); ;
DATA[index][2] = BitConverter.ToSingle(udpdata, count + 3 * 4); ;
DATA[index][3] = BitConverter.ToSingle(udpdata, count + 4 * 4); ;
DATA[index][4] = BitConverter.ToSingle(udpdata, count + 5 * 4); ;
DATA[index][5] = BitConverter.ToSingle(udpdata, count + 6 * 4); ;
DATA[index][6] = BitConverter.ToSingle(udpdata, count + 7 * 4); ;
DATA[index][7] = BitConverter.ToSingle(udpdata, count + 8 * 4); ;
count += 36; // 8 * float
}
bool xplane9 = !xplane10;
if (xplane9)
{
sitldata.pitchDeg = (DATA[18][0]);
sitldata.rollDeg = (DATA[18][1]);
sitldata.yawDeg = (DATA[18][2]);
sitldata.pitchRate = (DATA[17][0] * rad2deg);
sitldata.rollRate = (DATA[17][1] * rad2deg);
sitldata.yawRate = (DATA[17][2] * rad2deg);
sitldata.heading = ((float)DATA[19][2]);
}
else
{
sitldata.pitchDeg = (DATA[17][0]);
sitldata.rollDeg = (DATA[17][1]);
sitldata.yawDeg = (DATA[17][2]);
sitldata.pitchRate = (DATA[16][0] * rad2deg);
sitldata.rollRate = (DATA[16][1] * rad2deg);
sitldata.yawRate = (DATA[16][2] * rad2deg);
sitldata.heading = (DATA[18][2]);
}
sitldata.airspeed = ((DATA[3][5] * .44704));
sitldata.latitude = (DATA[20][0]);
sitldata.longitude = (DATA[20][1]);
sitldata.altitude = (DATA[20][2] * ft2m);
sitldata.speedN = DATA[21][3];// (DATA[3][7] * 0.44704 * Math.Sin(sitldata.heading * deg2rad));
sitldata.speedE = -DATA[21][5];// (DATA[3][7] * 0.44704 * Math.Cos(sitldata.heading * deg2rad));
Matrix3 dcm = new Matrix3();
dcm.from_euler(sitldata.rollDeg * deg2rad, sitldata.pitchDeg * deg2rad, sitldata.yawDeg * deg2rad);
// rad = tas^2 / (tan(angle) * G)
float turnrad = (float)(((DATA[3][7] * 0.44704) * (DATA[3][7] * 0.44704)) / (float)(9.8f * Math.Tan(sitldata.rollDeg * deg2rad)));
float gload = (float)(1 / Math.Cos(sitldata.rollDeg * deg2rad)); // calculated Gs
// a = v^2/r
float centripaccel = (float)((DATA[3][7] * 0.44704) * (DATA[3][7] * 0.44704)) / turnrad;
Vector3 accel_body = dcm.transposed() * (new Vector3(0, 0, -9.8));
Vector3 centrip_accel = new Vector3(0, centripaccel * Math.Cos(sitldata.rollDeg * deg2rad), centripaccel * Math.Sin(sitldata.rollDeg * deg2rad));
accel_body -= centrip_accel;
sitldata.xAccel = DATA[4][5] * 9.8;
sitldata.yAccel = DATA[4][6] * 9.8;
sitldata.zAccel = (0 - DATA[4][4]) * 9.8;
// Console.WriteLine(accel_body.ToString());
// Console.WriteLine(" {0} {1} {2}",sitldata.xAccel, sitldata.yAccel, sitldata.zAccel);
}
}
}
public override void SendToSim()
{
roll_out = (float)MainV2.comPort.MAV.cs.hilch1 / rollgain;
pitch_out = (float)MainV2.comPort.MAV.cs.hilch2 / pitchgain;
throttle_out = ((float)MainV2.comPort.MAV.cs.hilch3) / throttlegain;
rudder_out = (float)MainV2.comPort.MAV.cs.hilch4 / ruddergain;
// Limit min and max
roll_out = Constrain(roll_out, -1, 1);
pitch_out = Constrain(pitch_out, -1, 1);
rudder_out = Constrain(rudder_out, -1, 1);
throttle_out = Constrain(throttle_out, 0, 1);
// sending only 1 packet instead of many.
byte[] Xplane = new byte[5 + 36 + 36];
if (heli)
{
Xplane = new byte[5 + 36 + 36 + 36];
}
Xplane[0] = (byte)'D';
Xplane[1] = (byte)'A';
Xplane[2] = (byte)'T';
Xplane[3] = (byte)'A';
Xplane[4] = 0;
Array.Copy(BitConverter.GetBytes((int)25), 0, Xplane, 5, 4); // packet index
Array.Copy(BitConverter.GetBytes((float)throttle_out), 0, Xplane, 9, 4); // start data
Array.Copy(BitConverter.GetBytes((float)throttle_out), 0, Xplane, 13, 4);
Array.Copy(BitConverter.GetBytes((float)throttle_out), 0, Xplane, 17, 4);
Array.Copy(BitConverter.GetBytes((float)throttle_out), 0, Xplane, 21, 4);
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, 25, 4);
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, 29, 4);
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, 33, 4);
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, 37, 4);
// NEXT ONE - control surfaces
Array.Copy(BitConverter.GetBytes((int)11), 0, Xplane, 41, 4); // packet index
Array.Copy(BitConverter.GetBytes((float)(pitch_out * REV_pitch)), 0, Xplane, 45, 4); // start data
Array.Copy(BitConverter.GetBytes((float)(roll_out * REV_roll)), 0, Xplane, 49, 4);
Array.Copy(BitConverter.GetBytes((float)(rudder_out * REV_rudder)), 0, Xplane, 53, 4);
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, 57, 4);
Array.Copy(BitConverter.GetBytes((float)(roll_out * REV_roll * 0.5)), 0, Xplane, 61, 4);
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, 65, 4);
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, 69, 4);
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, 73, 4);
if (heli)
{
Array.Copy(BitConverter.GetBytes((float)(0)), 0, Xplane, 53, 4);
int a = 73 + 4;
Array.Copy(BitConverter.GetBytes((int)39), 0, Xplane, a, 4); // packet index
a += 4;
Array.Copy(BitConverter.GetBytes((float)(12 * collective_out)), 0, Xplane, a, 4); // main rotor 0 - 12
a += 4;
Array.Copy(BitConverter.GetBytes((float)(12 * rudder_out)), 0, Xplane, a, 4); // tail rotor -12 - 12
a += 4;
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, a, 4);
a += 4;
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, a, 4);
a += 4;
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, a, 4);
a += 4;
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, a, 4);
a += 4;
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, a, 4);
a += 4;
Array.Copy(BitConverter.GetBytes((int)-999), 0, Xplane, a, 4);
}
try
{
XplanesSEND.Send(Xplane, Xplane.Length);
}
catch (Exception e) { log.Info("Xplanes udp send error " + e.Message); }
}
public override void SendToAP(sitl_fdm sitldata)
{
TimeSpan gpsspan = DateTime.Now - lastgpsupdate;
// add gps delay
if (gpsspan.TotalMilliseconds >= GPS_rate)
{
lastgpsupdate = DateTime.Now;
// save current fix = 3
sitl_fdmbuffer[gpsbufferindex % sitl_fdmbuffer.Length] = sitldata;
// Console.WriteLine((gpsbufferindex % gpsbuffer.Length) + " " + ((gpsbufferindex + (gpsbuffer.Length - 1)) % gpsbuffer.Length));
// return buffer index + 5 = (3 + 5) = 8 % 6 = 2
oldgps = sitl_fdmbuffer[(gpsbufferindex + (sitl_fdmbuffer.Length - 1)) % sitl_fdmbuffer.Length];
//comPort.sendPacket(oldgps);
gpsbufferindex++;
}
MAVLink.mavlink_hil_state_t hilstate = new MAVLink.mavlink_hil_state_t();
hilstate.time_usec = (UInt64)DateTime.Now.Ticks; // microsec
hilstate.lat = (int)(oldgps.latitude * 1e7); // * 1E7
hilstate.lon = (int)(oldgps.longitude * 1e7); // * 1E7
hilstate.alt = (int)(oldgps.altitude * 1000); // mm
// Console.WriteLine(hilstate.alt);
hilstate.pitch = (float)sitldata.pitchDeg * deg2rad; // (rad)
hilstate.pitchspeed = (float)sitldata.pitchRate * deg2rad; // (rad/s)
hilstate.roll = (float)sitldata.rollDeg * deg2rad; // (rad)
hilstate.rollspeed = (float)sitldata.rollRate * deg2rad; // (rad/s)
hilstate.yaw = (float)sitldata.yawDeg * deg2rad; // (rad)
hilstate.yawspeed = (float)sitldata.yawRate * deg2rad; // (rad/s)
hilstate.vx = (short)(sitldata.speedN * 100); // m/s * 100
hilstate.vy = (short)(sitldata.speedE * 100); // m/s * 100
hilstate.vz = 0; // m/s * 100
hilstate.xacc = (short)(sitldata.xAccel * 1000); // (mg)
hilstate.yacc = (short)(sitldata.yAccel * 1000); // (mg)
hilstate.zacc = (short)(sitldata.zAccel * 1000); // (mg)
MainV2.comPort.sendPacket(hilstate);
MainV2.comPort.sendPacket(new MAVLink.mavlink_vfr_hud_t()
{
airspeed = (float)sitldata.airspeed
});
}
public override void GetFromAP() { }
void setupXplane()
{
// sending only 1 packet instead of many.
byte[] Xplane = new byte[5 + 4 * 8];
Xplane[0] = (byte)'D';
Xplane[1] = (byte)'S';
Xplane[2] = (byte)'E';
Xplane[3] = (byte)'L';
Xplane[4] = 0;
if (xplane10)
{
int pos = 5;
Xplane[pos] = 0x3;
pos += 4;
Xplane[pos] = 0x4;
pos += 4;
Xplane[pos] = 0x6;
pos += 4;
Xplane[pos] = 0x10;
pos += 4;
Xplane[pos] = 0x11;
pos += 4;
Xplane[pos] = 0x12;
pos += 4;
Xplane[pos] = 0x14;
pos += 4;
Xplane[pos] = 0x15;
pos += 4;
}
else
{
int pos = 5;
Xplane[pos] = 0x3;
pos += 4;
Xplane[pos] = 0x4;
pos += 4;
Xplane[pos] = 0x6;
pos += 4;
Xplane[pos] = 0x11;
pos += 4;
Xplane[pos] = 0x12;
pos += 4;
Xplane[pos] = 0x13;
pos += 4;
Xplane[pos] = 0x14;
pos += 4;
Xplane[pos] = 0x15;
pos += 4;
}
try
{
XplanesSEND.Send(Xplane, Xplane.Length);
}
catch (Exception e) { log.Info("Xplanes udp send error " + e.Message); }
}
}
}