From 27a155908f6f460dde1a52c949cea7ee6625976a Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Thu, 15 Mar 2018 16:05:10 +1300 Subject: Support DM G50 fixed 64 byte messages --- src/org/traccar/protocol/DmtProtocolDecoder.java | 262 +++++++++++++-------- .../traccar/protocol/DmtProtocolDecoderTest.java | 6 + 2 files changed, 175 insertions(+), 93 deletions(-) diff --git a/src/org/traccar/protocol/DmtProtocolDecoder.java b/src/org/traccar/protocol/DmtProtocolDecoder.java index 3739253f0..204d81820 100644 --- a/src/org/traccar/protocol/DmtProtocolDecoder.java +++ b/src/org/traccar/protocol/DmtProtocolDecoder.java @@ -21,6 +21,7 @@ import org.jboss.netty.channel.Channel; import org.traccar.BaseProtocolDecoder; import org.traccar.DeviceSession; import org.traccar.helper.BitUtil; +import org.traccar.helper.DateBuilder; import org.traccar.helper.UnitsConverter; import org.traccar.model.Position; @@ -42,6 +43,7 @@ public class DmtProtocolDecoder extends BaseProtocolDecoder { public static final int MSG_DATA_RECORD = 0x04; public static final int MSG_COMMIT = 0x05; public static final int MSG_COMMIT_RESPONSE = 0x06; + public static final int MSG_DATA_RECORD_64 = 0x10; public static final int MSG_CANNED_REQUEST_1 = 0x14; public static final int MSG_CANNED_RESPONSE_1 = 0x15; @@ -61,6 +63,169 @@ public class DmtProtocolDecoder extends BaseProtocolDecoder { } } + private List decodeFixed64(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) { + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); + if (deviceSession == null) { + return null; + } + + List positions = new LinkedList<>(); + + while (buf.readableBytes() >= 64) { + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + buf.readByte(); // type + + position.set(Position.KEY_INDEX, buf.readUnsignedInt()); + + long time = buf.readUnsignedInt(); + position.setTime(new DateBuilder() + .setYear((int) (2000 + (time & 0x3F))) + .setMonth((int) (time >> 6) & 0xF) + .setDay((int) (time >> 10) & 0x1F) + .setHour((int) (time >> 15) & 0x1F) + .setMinute((int) (time >> 20) & 0x3F) + .setSecond((int) (time >> 26) & 0x3F) + .getDate()); + + position.setLatitude(buf.readInt() * 0.0000001); + position.setLongitude(buf.readInt() * 0.0000001); + position.setSpeed(UnitsConverter.knotsFromCps(buf.readUnsignedShort())); + position.setCourse(buf.readUnsignedByte() * 2); + position.setAltitude(buf.readShort()); + + buf.readUnsignedShort(); // position accuracy + buf.readUnsignedByte(); // speed accuracy + + position.set(Position.KEY_EVENT, buf.readUnsignedByte()); + + position.setValid(BitUtil.check(buf.readByte(), 0)); + + position.set(Position.KEY_INPUT, buf.readUnsignedInt()); + position.set(Position.KEY_OUTPUT, buf.readUnsignedShort()); + + for (int i = 1; i <= 5; i++) { + position.set(Position.PREFIX_ADC + i, buf.readShort()); + } + + position.set(Position.KEY_DEVICE_TEMP, buf.readByte()); + + buf.readShort(); // accelerometer x + buf.readShort(); // accelerometer y + buf.readShort(); // accelerometer z + + buf.skipBytes(8); // device id + + position.set(Position.KEY_PDOP, buf.readUnsignedShort() * 0.01); + + buf.skipBytes(2); // reserved + + buf.readUnsignedShort(); // checksum + + positions.add(position); + } + + return positions; + } + + private List decodeStandard(Channel channel, SocketAddress remoteAddress, ChannelBuffer buf) { + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); + if (deviceSession == null) { + return null; + } + + List positions = new LinkedList<>(); + + while (buf.readable()) { + int recordEnd = buf.readerIndex() + buf.readUnsignedShort(); + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + position.set(Position.KEY_INDEX, buf.readUnsignedInt()); + + position.setDeviceTime(new Date(1356998400000L + buf.readUnsignedInt() * 1000)); // since 1 Jan 2013 + + position.set(Position.KEY_EVENT, buf.readUnsignedByte()); + + while (buf.readerIndex() < recordEnd) { + + int fieldId = buf.readUnsignedByte(); + int fieldLength = buf.readUnsignedByte(); + int fieldEnd = buf.readerIndex() + (fieldLength == 255 ? buf.readUnsignedShort() : fieldLength); + + if (fieldId == 0) { + + position.setFixTime(new Date(1356998400000L + buf.readUnsignedInt() * 1000)); + position.setLatitude(buf.readInt() * 0.0000001); + position.setLongitude(buf.readInt() * 0.0000001); + position.setAltitude(buf.readShort()); + position.setSpeed(UnitsConverter.knotsFromCps(buf.readUnsignedShort())); + + buf.readUnsignedByte(); // speed accuracy + + position.setCourse(buf.readUnsignedByte() * 2); + + position.set(Position.KEY_PDOP, buf.readUnsignedByte() * 0.1); + + position.setAccuracy(buf.readUnsignedByte()); + position.setValid(buf.readUnsignedByte() != 0); + + } else if (fieldId == 2) { + + int input = buf.readInt(); + int output = buf.readUnsignedShort(); + int status = buf.readUnsignedShort(); + + position.set(Position.KEY_IGNITION, BitUtil.check(input, 0)); + + position.set(Position.KEY_INPUT, input); + position.set(Position.KEY_OUTPUT, output); + position.set(Position.KEY_STATUS, status); + + } else if (fieldId == 6) { + + while (buf.readerIndex() < fieldEnd) { + switch (buf.readUnsignedByte()) { + case 1: + position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.001); + break; + case 2: + position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01); + break; + case 3: + position.set(Position.KEY_DEVICE_TEMP, buf.readShort() * 0.01); + break; + case 4: + position.set(Position.KEY_RSSI, buf.readUnsignedShort()); + break; + case 5: + position.set("solarPower", buf.readUnsignedShort() * 0.001); + break; + default: + break; + } + } + + } + + buf.readerIndex(fieldEnd); + + } + + if (position.getFixTime() == null) { + getLastLocation(position, position.getDeviceTime()); + } + + positions.add(position); + } + + return positions; + } + @Override protected Object decode( Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { @@ -106,102 +271,13 @@ public class DmtProtocolDecoder extends BaseProtocolDecoder { sendResponse(channel, MSG_CANNED_RESPONSE_2, null); - } else if (type == MSG_DATA_RECORD) { - - DeviceSession deviceSession = getDeviceSession(channel, remoteAddress); - if (deviceSession == null) { - return null; - } - - List positions = new LinkedList<>(); - - while (buf.readable()) { - - int recordEnd = buf.readerIndex() + buf.readUnsignedShort(); - - Position position = new Position(getProtocolName()); - position.setDeviceId(deviceSession.getDeviceId()); - - position.set(Position.KEY_INDEX, buf.readUnsignedInt()); - - position.setDeviceTime(new Date(1356998400000L + buf.readUnsignedInt() * 1000)); // since 1 Jan 2013 - - position.set(Position.KEY_EVENT, buf.readUnsignedByte()); - - while (buf.readerIndex() < recordEnd) { + } else if (type == MSG_DATA_RECORD_64) { - int fieldId = buf.readUnsignedByte(); - int fieldLength = buf.readUnsignedByte(); - int fieldEnd = buf.readerIndex() + (fieldLength == 255 ? buf.readUnsignedShort() : fieldLength); + return decodeFixed64(channel, remoteAddress, buf); - if (fieldId == 0) { - - position.setFixTime(new Date(1356998400000L + buf.readUnsignedInt() * 1000)); - position.setLatitude(buf.readInt() * 0.0000001); - position.setLongitude(buf.readInt() * 0.0000001); - position.setAltitude(buf.readShort()); - position.setSpeed(UnitsConverter.knotsFromCps(buf.readUnsignedShort())); - - buf.readUnsignedByte(); // speed accuracy - - position.setCourse(buf.readUnsignedByte() * 2); - - position.set(Position.KEY_PDOP, buf.readUnsignedByte() * 0.1); - - position.setAccuracy(buf.readUnsignedByte()); - position.setValid(buf.readUnsignedByte() != 0); - - } else if (fieldId == 2) { - - int input = buf.readInt(); - int output = buf.readUnsignedShort(); - int status = buf.readUnsignedShort(); - - position.set(Position.KEY_IGNITION, BitUtil.check(input, 0)); - - position.set(Position.KEY_INPUT, input); - position.set(Position.KEY_OUTPUT, output); - position.set(Position.KEY_STATUS, status); - - } else if (fieldId == 6) { - - while (buf.readerIndex() < fieldEnd) { - switch (buf.readUnsignedByte()) { - case 1: - position.set(Position.KEY_BATTERY, buf.readUnsignedShort() * 0.001); - break; - case 2: - position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.01); - break; - case 3: - position.set(Position.KEY_DEVICE_TEMP, buf.readShort() * 0.01); - break; - case 4: - position.set(Position.KEY_RSSI, buf.readUnsignedShort()); - break; - case 5: - position.set("solarPower", buf.readUnsignedShort() * 0.001); - break; - default: - break; - } - } - - } - - buf.readerIndex(fieldEnd); - - } - - if (position.getFixTime() == null) { - getLastLocation(position, position.getDeviceTime()); - } - - positions.add(position); - - } + } else if (type == MSG_DATA_RECORD) { - return positions; + return decodeStandard(channel, remoteAddress, buf); } diff --git a/test/org/traccar/protocol/DmtProtocolDecoderTest.java b/test/org/traccar/protocol/DmtProtocolDecoderTest.java index a83dcafe2..2e386c48e 100644 --- a/test/org/traccar/protocol/DmtProtocolDecoderTest.java +++ b/test/org/traccar/protocol/DmtProtocolDecoderTest.java @@ -15,6 +15,12 @@ public class DmtProtocolDecoderTest extends ProtocolTest { verifyNull(decoder, binary(ByteOrder.LITTLE_ENDIAN, "0255003300001b00003335333232393032373533393235310038393931353030303030303030313330343539340000000403041910780603")); + verifyPositions(decoder, false, binary(ByteOrder.LITTLE_ENDIAN, + "02551040000eaca40d00d2b8e562c51f9912f39a6bee00007e420091090903070100000000008b1065360000000000007fd401c4fcf2feffffffffffffffffee0000003f1b")); + + verifyPositions(decoder, false, binary(ByteOrder.LITTLE_ENDIAN, + "02551080000eada40d00d2b8e58ac51f9912f39a6bee00007e42007e090709070000000000009010fc330000000000007fc201a0fc04ffffffffffffffffffe5000000c5d00eaea40d00d2b8e58ac51f9912f39a6bee00007e42007e09070207000000000000851008340000000000007fc201a0fc04ff0000000000000000e5000000c96d")); + verifyNull(decoder, binary(ByteOrder.LITTLE_ENDIAN, "025500310038f90100333533333233303831363639373330003839363130313835303031383234383434363330002202010900000000")); -- cgit v1.2.3