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Diffstat (limited to 'src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java')
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diff --git a/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/Jt600ProtocolDecoder.java
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+/*
+ * Copyright 2012 - 2018 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.protocol;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.ByteBufUtil;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BcdUtil;
+import org.traccar.helper.BitBuffer;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class Jt600ProtocolDecoder extends BaseProtocolDecoder {
+
+ public Jt600ProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static double convertCoordinate(int raw) {
+ int degrees = raw / 1000000;
+ double minutes = (raw % 1000000) / 10000.0;
+ return degrees + minutes / 60;
+ }
+
+ private void decodeStatus(Position position, ByteBuf buf) {
+
+ int value = buf.readUnsignedByte();
+
+ position.set(Position.KEY_IGNITION, BitUtil.check(value, 0));
+ position.set(Position.KEY_DOOR, BitUtil.check(value, 6));
+
+ value = buf.readUnsignedByte();
+
+ position.set(Position.KEY_CHARGE, BitUtil.check(value, 0));
+ position.set(Position.KEY_BLOCKED, BitUtil.check(value, 1));
+
+ if (BitUtil.check(value, 2)) {
+ position.set(Position.KEY_ALARM, Position.ALARM_SOS);
+ }
+ if (BitUtil.check(value, 3) || BitUtil.check(value, 4)) {
+ position.set(Position.KEY_ALARM, Position.ALARM_GPS_ANTENNA_CUT);
+ }
+ if (BitUtil.check(value, 4)) {
+ position.set(Position.KEY_ALARM, Position.ALARM_OVERSPEED);
+ }
+
+ value = buf.readUnsignedByte();
+
+ if (BitUtil.check(value, 2)) {
+ position.set(Position.KEY_ALARM, Position.ALARM_FATIGUE_DRIVING);
+ }
+ if (BitUtil.check(value, 3)) {
+ position.set(Position.KEY_ALARM, Position.ALARM_TOW);
+ }
+
+ buf.readUnsignedByte(); // reserved
+
+ }
+
+ private List<Position> decodeBinary(ByteBuf buf, Channel channel, SocketAddress remoteAddress) {
+
+ List<Position> positions = new LinkedList<>();
+
+ buf.readByte(); // header
+
+ boolean longFormat = buf.getUnsignedByte(buf.readerIndex()) == 0x75;
+
+ String id = String.valueOf(Long.parseLong(ByteBufUtil.hexDump(buf.readSlice(5))));
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ int protocolVersion = 0;
+ if (longFormat) {
+ protocolVersion = buf.readUnsignedByte();
+ }
+
+ int version = BitUtil.from(buf.readUnsignedByte(), 4);
+ buf.readUnsignedShort(); // length
+
+ while (buf.readableBytes() > 1) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setDay(BcdUtil.readInteger(buf, 2))
+ .setMonth(BcdUtil.readInteger(buf, 2))
+ .setYear(BcdUtil.readInteger(buf, 2))
+ .setHour(BcdUtil.readInteger(buf, 2))
+ .setMinute(BcdUtil.readInteger(buf, 2))
+ .setSecond(BcdUtil.readInteger(buf, 2));
+ position.setTime(dateBuilder.getDate());
+
+ double latitude = convertCoordinate(BcdUtil.readInteger(buf, 8));
+ double longitude = convertCoordinate(BcdUtil.readInteger(buf, 9));
+
+ byte flags = buf.readByte();
+ position.setValid((flags & 0x1) == 0x1);
+ if ((flags & 0x2) == 0) {
+ latitude = -latitude;
+ }
+ position.setLatitude(latitude);
+ if ((flags & 0x4) == 0) {
+ longitude = -longitude;
+ }
+ position.setLongitude(longitude);
+
+ position.setSpeed(BcdUtil.readInteger(buf, 2));
+ position.setCourse(buf.readUnsignedByte() * 2.0);
+
+ if (longFormat) {
+
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 1000);
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+
+ buf.readUnsignedInt(); // vehicle id combined
+
+ int status = buf.readUnsignedShort();
+ position.set(Position.KEY_ALARM, BitUtil.check(status, 1) ? Position.ALARM_GEOFENCE_ENTER : null);
+ position.set(Position.KEY_ALARM, BitUtil.check(status, 2) ? Position.ALARM_GEOFENCE_EXIT : null);
+ position.set(Position.KEY_ALARM, BitUtil.check(status, 3) ? Position.ALARM_POWER_CUT : null);
+ position.set(Position.KEY_ALARM, BitUtil.check(status, 4) ? Position.ALARM_VIBRATION : null);
+ position.set(Position.KEY_BLOCKED, BitUtil.check(status, 7));
+ position.set(Position.KEY_ALARM, BitUtil.check(status, 8 + 3) ? Position.ALARM_LOW_BATTERY : null);
+ position.set(Position.KEY_ALARM, BitUtil.check(status, 8 + 6) ? Position.ALARM_FAULT : null);
+ position.set(Position.KEY_STATUS, status);
+
+ int battery = buf.readUnsignedByte();
+ if (battery == 0xff) {
+ position.set(Position.KEY_CHARGE, true);
+ } else {
+ position.set(Position.KEY_BATTERY_LEVEL, battery);
+ }
+
+ CellTower cellTower = CellTower.fromCidLac(buf.readUnsignedShort(), buf.readUnsignedShort());
+ cellTower.setSignalStrength((int) buf.readUnsignedByte());
+ position.setNetwork(new Network(cellTower));
+
+ if (protocolVersion == 0x17) {
+ buf.readUnsignedByte(); // geofence id
+ buf.skipBytes(3); // reserved
+ }
+
+ } else if (version == 1) {
+
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ position.set(Position.KEY_POWER, buf.readUnsignedByte());
+
+ buf.readByte(); // other flags and sensors
+
+ position.setAltitude(buf.readUnsignedShort());
+
+ int cid = buf.readUnsignedShort();
+ int lac = buf.readUnsignedShort();
+ int rssi = buf.readUnsignedByte();
+
+ if (cid != 0 && lac != 0) {
+ CellTower cellTower = CellTower.fromCidLac(cid, lac);
+ cellTower.setSignalStrength(rssi);
+ position.setNetwork(new Network(cellTower));
+ } else {
+ position.set(Position.KEY_RSSI, rssi);
+ }
+
+ } else if (version == 2) {
+
+ int fuel = buf.readUnsignedByte() << 8;
+
+ decodeStatus(position, buf);
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedInt() * 1000);
+
+ fuel += buf.readUnsignedByte();
+ position.set(Position.KEY_FUEL_LEVEL, fuel);
+
+ } else if (version == 3) {
+
+ BitBuffer bitBuffer = new BitBuffer(buf);
+
+ position.set("fuel1", bitBuffer.readUnsigned(12));
+ position.set("fuel2", bitBuffer.readUnsigned(12));
+ position.set("fuel3", bitBuffer.readUnsigned(12));
+ position.set(Position.KEY_ODOMETER, bitBuffer.readUnsigned(20) * 1000);
+
+ int status = bitBuffer.readUnsigned(24);
+ position.set(Position.KEY_IGNITION, BitUtil.check(status, 0));
+ position.set(Position.KEY_STATUS, status);
+
+ }
+
+ positions.add(position);
+
+ }
+
+ buf.readUnsignedByte(); // index
+
+ return positions;
+ }
+
+ private static final Pattern PATTERN_W01 = new PatternBuilder()
+ .text("(")
+ .number("(d+),") // id
+ .text("W01,") // type
+ .number("(ddd)(dd.dddd),") // longitude
+ .expression("([EW]),")
+ .number("(dd)(dd.dddd),") // latitude
+ .expression("([NS]),")
+ .expression("([AV]),") // validity
+ .number("(dd)(dd)(dd),") // date (ddmmyy)
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .number("(d+),") // speed
+ .number("(d+),") // course
+ .number("(d+),") // power
+ .number("(d+),") // gps signal
+ .number("(d+),") // gsm signal
+ .number("(d+),") // alert type
+ .any()
+ .compile();
+
+ private Position decodeW01(String sentence, Channel channel, SocketAddress remoteAddress) {
+
+ Parser parser = new Parser(PATTERN_W01, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setLongitude(parser.nextCoordinate());
+ position.setLatitude(parser.nextCoordinate());
+ position.setValid(parser.next().equals("A"));
+
+ position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+
+ position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble(0)));
+ position.setCourse(parser.nextDouble(0));
+
+ position.set(Position.KEY_POWER, parser.nextDouble(0));
+ position.set(Position.KEY_GPS, parser.nextInt(0));
+ position.set(Position.KEY_RSSI, parser.nextInt(0));
+ position.set("alertType", parser.nextInt(0));
+
+ return position;
+ }
+
+ private static final Pattern PATTERN_U01 = new PatternBuilder()
+ .text("(")
+ .number("(d+),") // id
+ .number("(Udd),") // type
+ .number("d+,").optional() // alarm
+ .number("(dd)(dd)(dd),") // date (ddmmyy)
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .expression("([TF]),") // validity
+ .number("(d+.d+),([NS]),") // latitude
+ .number("(d+.d+),([EW]),") // longitude
+ .number("(d+.?d*),") // speed
+ .number("(d+),") // course
+ .number("(d+),") // satellites
+ .number("(d+)%,") // battery
+ .expression("([01]+),") // status
+ .number("(d+),") // cid
+ .number("(d+),") // lac
+ .number("(d+),") // gsm signal
+ .number("(d+),") // odometer
+ .number("(d+)") // serial number
+ .number(",(xx)").optional() // checksum
+ .any()
+ .compile();
+
+ private Position decodeU01(String sentence, Channel channel, SocketAddress remoteAddress) {
+
+ Parser parser = new Parser(PATTERN_U01, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ String type = parser.next();
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setTime(parser.nextDateTime(Parser.DateTimeFormat.DMY_HMS));
+
+ position.setValid(parser.next().equals("T"));
+ position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+ position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM));
+
+ position.setSpeed(UnitsConverter.knotsFromMph(parser.nextDouble(0)));
+ position.setCourse(parser.nextDouble(0));
+
+ position.set(Position.KEY_SATELLITES, parser.nextInt(0));
+ position.set(Position.KEY_BATTERY_LEVEL, parser.nextInt(0));
+ position.set(Position.KEY_STATUS, parser.nextBinInt(0));
+
+ CellTower cellTower = CellTower.fromCidLac(parser.nextInt(0), parser.nextInt(0));
+ cellTower.setSignalStrength(parser.nextInt(0));
+ position.setNetwork(new Network(cellTower));
+
+ position.set(Position.KEY_ODOMETER, parser.nextLong(0) * 1000);
+ position.set(Position.KEY_INDEX, parser.nextInt(0));
+
+ if (channel != null) {
+ if (type.equals("U01") || type.equals("U02") || type.equals("U03")) {
+ channel.writeAndFlush(new NetworkMessage("(S39)", remoteAddress));
+ } else if (type.equals("U06")) {
+ channel.writeAndFlush(new NetworkMessage("(S20)", remoteAddress));
+ }
+ }
+
+ return position;
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+ char first = (char) buf.getByte(0);
+
+ if (first == '$') {
+ return decodeBinary(buf, channel, remoteAddress);
+ } else if (first == '(') {
+ String sentence = buf.toString(StandardCharsets.US_ASCII);
+ if (sentence.contains("W01")) {
+ return decodeW01(sentence, channel, remoteAddress);
+ } else {
+ return decodeU01(sentence, channel, remoteAddress);
+ }
+ }
+
+ return null;
+ }
+
+}