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-rw-r--r--src/org/traccar/helper/UnitsConverter.java9
-rw-r--r--src/org/traccar/protocol/OigoProtocolDecoder.java97
2 files changed, 98 insertions, 8 deletions
diff --git a/src/org/traccar/helper/UnitsConverter.java b/src/org/traccar/helper/UnitsConverter.java
index 00b00861e..e0d94c6dc 100644
--- a/src/org/traccar/helper/UnitsConverter.java
+++ b/src/org/traccar/helper/UnitsConverter.java
@@ -21,6 +21,7 @@ public final class UnitsConverter {
private static final double KNOTS_TO_MPH_RATIO = 0.868976;
private static final double KNOTS_TO_MPS_RATIO = 1.94384;
private static final double KNOTS_TO_CPS_RATIO = 0.0194384449;
+ private static final double METERS_TO_FEET_RATIO = 0.3048;
private UnitsConverter() {
}
@@ -53,4 +54,12 @@ public final class UnitsConverter {
return value * KNOTS_TO_CPS_RATIO;
}
+ public static double feetFromMeters(double value) {
+ return value / METERS_TO_FEET_RATIO;
+ }
+
+ public static double metersFromFeet(double value) {
+ return value * METERS_TO_FEET_RATIO;
+ }
+
}
diff --git a/src/org/traccar/protocol/OigoProtocolDecoder.java b/src/org/traccar/protocol/OigoProtocolDecoder.java
index 15a215c4f..90588a628 100644
--- a/src/org/traccar/protocol/OigoProtocolDecoder.java
+++ b/src/org/traccar/protocol/OigoProtocolDecoder.java
@@ -34,15 +34,12 @@ public class OigoProtocolDecoder extends BaseProtocolDecoder {
super(protocol);
}
- public static final int MSG_LOCATION = 0x00;
- public static final int MSG_REMOTE_START = 0x10;
- public static final int MSG_ACKNOWLEDGEMENT = 0xE0;
+ public static final int MSG_AR_LOCATION = 0x00;
+ public static final int MSG_AR_REMOTE_START = 0x10;
- @Override
- protected Object decode(
- Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+ public static final int MSG_ACKNOWLEDGEMENT = 0xE0;
- ChannelBuffer buf = (ChannelBuffer) msg;
+ private Position decodeArMessage(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) {
buf.skipBytes(1); // header
buf.readUnsignedShort(); // length
@@ -67,7 +64,7 @@ public class OigoProtocolDecoder extends BaseProtocolDecoder {
break;
}
- if (deviceSession == null || type != MSG_LOCATION) {
+ if (deviceSession == null || type != MSG_AR_LOCATION) {
return null;
}
@@ -154,4 +151,88 @@ public class OigoProtocolDecoder extends BaseProtocolDecoder {
return position;
}
+ private double convertCoordinate(long value) {
+ boolean negative = value < 0;
+ value = Math.abs(value);
+ double minutes = (value % 100000) * 0.001;
+ double degrees = value / 100000 + minutes / 60;
+ return negative ? -degrees : degrees;
+ }
+
+ private Position decodeMgMessage(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) {
+
+ buf.readUnsignedByte(); // tag
+ int flags = buf.getUnsignedByte(buf.readerIndex());
+
+ DeviceSession deviceSession;
+ if (BitUtil.check(flags, 6)) {
+ buf.readUnsignedByte(); // flags
+ deviceSession = getDeviceSession(channel, remoteAddress);
+ } else {
+ String imei = ChannelBuffers.hexDump(buf.readBytes(8)).substring(1);
+ deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ }
+
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position();
+ position.setProtocol(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ buf.skipBytes(8); // imsi
+
+ int date = buf.readUnsignedShort();
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setDate(2010 + BitUtil.from(date, 12), BitUtil.between(date, 8, 12), BitUtil.to(date, 8))
+ .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), 0);
+
+ position.setValid(true);
+ position.setLatitude(convertCoordinate(buf.readInt()));
+ position.setLongitude(convertCoordinate(buf.readInt()));
+
+ position.setAltitude(UnitsConverter.metersFromFeet(buf.readShort()));
+ position.setCourse(buf.readUnsignedShort());
+ position.setSpeed(UnitsConverter.knotsFromMph(buf.readUnsignedByte()));
+
+ position.set(Position.KEY_POWER, buf.readUnsignedByte() * 100 + "mV");
+ position.set(Position.PREFIX_IO + 1, buf.readUnsignedByte());
+
+ dateBuilder.setSecond(buf.readUnsignedByte());
+ position.setTime(dateBuilder.getDate());
+
+ position.set(Position.KEY_GSM, buf.readUnsignedByte());
+
+ int index = buf.readUnsignedByte();
+
+ position.set(Position.KEY_VERSION, buf.readUnsignedByte());
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ position.set(Position.KEY_ODOMETER, (long) (buf.readUnsignedInt() * 1609.34));
+
+ if (channel != null && BitUtil.check(flags, 7)) {
+ ChannelBuffer response = ChannelBuffers.dynamicBuffer();
+ response.writeByte(MSG_ACKNOWLEDGEMENT);
+ response.writeByte(index);
+ response.writeByte(0x00);
+ channel.write(response, remoteAddress);
+ }
+
+ return position;
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ChannelBuffer buf = (ChannelBuffer) msg;
+
+ if (buf.getUnsignedByte(buf.readerIndex()) == 0x7e) {
+ return decodeArMessage(channel, remoteAddress, buf);
+ } else {
+ return decodeMgMessage(channel, remoteAddress, buf);
+ }
+ }
+
}