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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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15 
  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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22 
  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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27 
  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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36 
  //Log(JSON.stringify(json_data));
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1956 runge 38 
  if (json_data.method == "MBB.OnPosition")
1947 runge 39 
  {
1952 runge 40 
    if (Mbb_Clients[client_id])
1947 runge 41 
    {
1956 runge 42 
      Mbb_Clients[client_id]["Position"] = json_data.params;
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      //Log("In params: " + JSON.stringify(json_data.params));
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      for (var n = 0; n < Mbb_Susbscribers.length; n++)
1947 runge 47 
      {
1956 runge 48 
        Mbb_Susbscribers[n]("position", Mbb_Clients[client_id]);
1947 runge 49 
      }
1956 runge 50 
 
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      //Log("Out nmea:" + JSON.stringify(_Mbb_NmeaToPosition(json_data.params.NmeaRmc, json_data.params.NmeaGga)));
1947 runge 54 
    }
1952 runge 55 
    else
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    {
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      Log("Got data from unknown tracker!");
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    }
1947 runge 59 
  }
1952 runge 60 
  else if (json_data.method == "MBB.OnConnected")
1947 runge 61 
  {
62 
    Log("Client " + client_id + " has IMEI " + json_data.params.Imei);
63 
 
64 
    Mbb_Clients[client_id]["Id"] = client_id;
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    Mbb_Clients[client_id]["Info"] = json_data.params;
1949 runge 66 
    Mbb_Clients[client_id]["Position"] = false;
1947 runge 67 
 
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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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    }
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  }
1952 runge 73 
  else
1947 runge 74 
  {
1952 runge 75 
    Log("Got unknown data \"" + data + "\" from client " + client_id);
76 
  }
1947 runge 77 
}
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function Mbb_SendData(client_id, json_data)
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{
81 
  return MbbExport_SendData(client_id, JSON.Stringify(json_data));
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}
1949 runge 83 
 
1956 runge 84 
 
85 
function _Mbb_NmeaToPosition(rmc, gga)
1949 runge 86 
{
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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
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  (empty field) DGPS station ID number
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  *47          the checksum data, always begins with *
1956 runge 109 
 
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1949 runge 111 
  $GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A
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113 
      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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*/
1956 runge 124 
 
125 
 
126 
  var nmea_rmc_parts = rmc.split(",");
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1949 runge 128 
  if (nmea_rmc_parts[2] == "A")
129 
  {
1956 runge 130 
    var nmea_gga_parts = gga.split(",");
1949 runge 131 
    var position = {};
1956 runge 132 
 
1949 runge 133 
    position["Datetime"]            = "20" + nmea_rmc_parts[9].substr(4, 2) + "-" + nmea_rmc_parts[9].substr(2, 2) + "-" + nmea_rmc_parts[9].substr(0, 2);
134 
    position["Datetime"]            += " " + nmea_rmc_parts[1].substr(0, 2) + ":" + nmea_rmc_parts[1].substr(2, 2) + ":" + nmea_rmc_parts[1].substr(4, 2) + " UTC";
1956 runge 135 
 
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1950 runge 137 
    /* Calculate decimal latitude */
138 
    var degrees = parseFloat(nmea_rmc_parts[3].substr(0, 2));
139 
    var decimal = parseFloat(nmea_rmc_parts[3].substr(2));
1956 runge 140 
 
1950 runge 141 
    position["Latitude"] = degrees + (decimal / 60.0);
1956 runge 142 
 
1950 runge 143 
    if (nmea_rmc_parts[4] == "S")
144 
    {
145 
      position["Latitude"] = -position["Latitude"];
146 
    }
147 
 
148 
    /* Calculate decimal longitude */
149 
    var degrees = parseFloat(nmea_rmc_parts[5].substr(0, 3));
150 
    var decimal = parseFloat(nmea_rmc_parts[5].substr(3));
1956 runge 151 
 
1950 runge 152 
    position["Longitude"] = degrees + (decimal / 60.0);
1956 runge 153 
 
1950 runge 154 
    if (nmea_rmc_parts[6] == "W")
155 
    {
156 
      position["Longitude"] = -position["Longitude"];
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    }
1956 runge 158 
 
1950 runge 159 
    position["Hdop"] = nmea_gga_parts[8];
1956 runge 160 
 
1950 runge 161 
    position["Satellites"] = nmea_gga_parts[7];
1956 runge 162 
 
1950 runge 163 
    position["Altitude"] = nmea_gga_parts[9]; // Meters
164 
    position["HeightOfGeoid"] = nmea_gga_parts[11] // Meters
1956 runge 165 
 
1950 runge 166 
    position["Speed"] = nmea_rmc_parts[7]; // Knots
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    position["Angle"] = nmea_rmc_parts[8];
1956 runge 168 
 
169 
 
1949 runge 170 
    return position;
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  }
1956 runge 172 
 
1949 runge 173 
  return false;
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}
1956 runge 175