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Rev Author Line No. Line
1947 runge 1 
 
2 
Mbb_Clients = {};
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Mbb_Susbscribers = [];
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function Mbb_SubscribeToDeviceStatus(callback)
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{
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  Mbb_Susbscribers.push(callback);
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}
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function Mbb_Connected(client_id)
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{
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  Log(client_id + " connected!");
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  Mbb_Clients[client_id] = {};
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}
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function Mbb_Disconnected(client_id)
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{
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  Log(client_id + " disconnected!");
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  for (var n = 0; n < Mbb_Susbscribers.length; n++)
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  {
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    Mbb_Susbscribers[n]("disconnected", Mbb_Clients[client_id]);
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  }
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  delete Mbb_Clients[client_id];
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}
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function Mbb_ReceivedData(client_id, data)
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{
1949 runge 32 
  Log(data);
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1947 runge 34 
  var json_data = eval("(" + data + ")");
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  //Log(JSON.stringify(json_data));
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  if (json_data.method == "MBB.GpsNmeaData")
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  {
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    if (json_data.params.nmea.substr(0, 6) == "$GPGGA")
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    {
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      Mbb_Clients[client_id]["LastNmea"]["GGA"] = json_data.params.nmea;
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    }
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    else if (json_data.params.nmea.substr(0, 6) == "$GPRMC")
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    {
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      Mbb_Clients[client_id]["LastNmea"]["RMC"] = json_data.params.nmea;
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1949 runge 48 
      Mbb_Clients[client_id]["Position"] = _Mbb_NmeaToPosition(client_id);
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1947 runge 50 
      for (var n = 0; n < Mbb_Susbscribers.length; n++)
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      {
1949 runge 52 
        Mbb_Susbscribers[n]("position", Mbb_Clients[client_id]);
1947 runge 53 
      }
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      Mbb_Clients[client_id]["LastNmea"]["GGA"] = "";
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      Mbb_Clients[client_id]["LastNmea"]["RMC"] = "";
1949 runge 57 
      Mbb_Clients[client_id]["Position"] = false;
1947 runge 58 
    }
59 
  }
60 
  else /*if (json_data.method == "MBB.Connected")*/
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  {
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    json_data = { "params" : { "Imei" : "004401700721448" } };
63 
 
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    Log("Client " + client_id + " has IMEI " + json_data.params.Imei);
65 
 
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    Mbb_Clients[client_id]["Id"] = client_id;
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    Mbb_Clients[client_id]["Info"] = json_data.params;
1949 runge 68 
    Mbb_Clients[client_id]["Position"] = false;
1947 runge 69 
    Mbb_Clients[client_id]["LastNmea"] = {};
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    Mbb_Clients[client_id]["LastNmea"]["GGA"] = "";
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    Mbb_Clients[client_id]["LastNmea"]["RMC"] = "";
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    for (var n = 0; n < Mbb_Susbscribers.length; n++)
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    {
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      Mbb_Susbscribers[n]("connected", Mbb_Clients[client_id]);
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    }
77 
  }
78 
  /*else
79 
  {
80 
    Log("Got unknown data \"" + json_data + "\" from client " + client_id);
81 
  }*/
82 
}
83 
 
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function Mbb_SendData(client_id, json_data)
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{
86 
  return MbbExport_SendData(client_id, JSON.Stringify(json_data));
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}
1949 runge 88 
 
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function _Mbb_NmeaToPosition(client_id)
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{
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  /*
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      GGA          Global Positioning System Fix Data
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*     123519       Fix taken at 12:35:19 UTC
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*     4807.038,N   Latitude 48 deg 07.038' N
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*     01131.000,E  Longitude 11 deg 31.000' E
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  1            Fix quality: 0 = invalid
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                            1 = GPS fix (SPS)
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                            2 = DGPS fix
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                            3 = PPS fix
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                            4 = Real Time Kinematic
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                            5 = Float RTK
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                            6 = estimated (dead reckoning) (2.3 feature)
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                            7 = Manual input mode
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                            8 = Simulation mode
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*     08           Number of satellites being tracked
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*     0.9          Horizontal dilution of position
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*     545.4,M      Altitude, Meters, above mean sea level
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*     46.9,M       Height of geoid (mean sea level) above WGS84
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                  ellipsoid
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  (empty field) time in seconds since last DGPS update
111 
  (empty field) DGPS station ID number
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  *47          the checksum data, always begins with *
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114 
 
115 
  $GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A
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117 
      RMC          Recommended Minimum sentence C
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*     123519       Fix taken at 12:35:19 UTC
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*     A            Status A=active or V=Void.
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*     4807.038,N   Latitude 48 deg 07.038' N
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*     01131.000,E  Longitude 11 deg 31.000' E
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*     022.4        Speed over the ground in knots
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*     084.4        Track angle in degrees True
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*     230394       Date - 23rd of March 1994
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*     003.1,W      Magnetic Variation
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  *6A          The checksum data, always begins with *
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*/
128 
 
129 
 
130 
  var nmea_rmc_parts = Mbb_Clients[client_id]["LastNmea"]["RMC"].split(",");
131 
 
132 
  if (nmea_rmc_parts[2] == "A")
133 
  {
134 
    var nmea_gga_parts = Mbb_Clients[client_id]["LastNmea"]["GGA"].split(",");
135 
    var position = {};
136 
 
137 
    position["Datetime"]            = "20" + nmea_rmc_parts[9].substr(4, 2) + "-" + nmea_rmc_parts[9].substr(2, 2) + "-" + nmea_rmc_parts[9].substr(0, 2);
138 
    position["Datetime"]            += " " + nmea_rmc_parts[1].substr(0, 2) + ":" + nmea_rmc_parts[1].substr(2, 2) + ":" + nmea_rmc_parts[1].substr(4, 2) + " UTC";
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140 
    position["Latitude"]            = nmea_rmc_parts[3] + "," + nmea_rmc_parts[4];
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    position["Longitude"]           = nmea_rmc_parts[5] + "," + nmea_rmc_parts[6];
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    position["HorizontalDilution"]  = nmea_gga_parts[8];
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144 
    position["Altitude"]            = nmea_gga_parts[9] + "," + nmea_gga_parts[10];
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    position["HeightOfGeoid"]       = nmea_gga_parts[11] + "," + nmea_gga_parts[12];
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    position["SpeedKnots"]          = nmea_rmc_parts[7];
148 
 
149 
    position["Angle"]               = nmea_rmc_parts[8];
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151 
    if (nmea_rmc_parts[10] != "")
152 
    {
153 
      position["MagneticVariation"]   = nmea_rmc_parts[10] + "," + nmea_rmc_parts[11].substr(0, 1);
154 
    }
155 
 
156 
    return position;
157 
  }
158 
 
159 
  return false;
160 
}