diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java')
| -rw-r--r-- | src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java b/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java new file mode 100644 index 000000000..17fac4311 --- /dev/null +++ b/src/main/java/org/traccar/protocol/VtfmsProtocolDecoder.java @@ -0,0 +1,167 @@ +/* + * Copyright 2017 - 2019 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.channel.Channel; +import org.traccar.BaseProtocolDecoder; +import org.traccar.DeviceSession; +import org.traccar.Protocol; +import org.traccar.helper.Parser; +import org.traccar.helper.PatternBuilder; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.util.regex.Pattern; + +public class VtfmsProtocolDecoder extends BaseProtocolDecoder { + + private static final String[] DIRECTIONS = new String[] {"N", "NE", "E", "SE", "S", "SW", "W", "NW"}; + + public VtfmsProtocolDecoder(Protocol protocol) { + super(protocol); + } + + private static final Pattern PATTERN = new PatternBuilder() + .text("(") + .number("(d{15}),") // imei + .number("[0-9A-Z]{3}dd,") // packet count + .number("(dd),") // packet id + .number("[^,]*,") // reserved + .number("(d+)?,") // rssi + .number("(?:d+)?,") // fix status + .number("(d+)?,") // satellites + .number("[^,]*,") // reserved + .expression("([AV]),") // validity + .number("(dd)(dd)(dd),") // time (hhmmss) + .number("(dd)(dd)(dd),") // time (ddmmyy) + .number("(-?d+.d+),") // latitude + .number("(-?d+.d+),") // longitude + .number("(?:(d+)|([NESW]{1,2})),") // course + .number("(d+),") // speed + .number("(d+),") // hours + .number("(d+),") // idle hours + .expression("[KNT],") // antenna status + .number("(d+),") // odometer + .expression("([01]),") // power status + .number("(d+.d+),") // power voltage + .number("[^,]*,") // reserved + .number("(d+)?,") // fuel level + .number("(d+.d+)?,") // adc 1 + .number("[^,]*,") // reserved + .number("(d+.d+)?,") // adc 2 + .expression("([01]),") // di 1 + .expression("([01]),") // di 2 + .expression("([01]),") // di 3 + .expression("([01]),") // di 4 + .expression("([01]),") // do 1 + .expression("([01]),") // do 2 + .expression("([01]),") // do 3 + .number("[^,]*,") // reserved + .number("[^,]*") // reserved + .text(")") + .number("ddd") // checksum + .compile(); + + private String decodeAlarm(int value) { + switch (value) { + case 10: + return Position.ALARM_OVERSPEED; + case 14: + return Position.ALARM_POWER_CUT; + case 15: + return Position.ALARM_POWER_RESTORED; + case 32: + return Position.ALARM_BRAKING; + case 33: + return Position.ALARM_ACCELERATION; + default: + return null; + } + } + + private double convertToDegrees(double value) { + double degrees = Math.floor(value / 100); + return degrees + (value - degrees * 100) / 60; + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + Parser parser = new Parser(PATTERN, (String) msg); + 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.set(Position.KEY_ALARM, decodeAlarm(parser.nextInt())); + position.set(Position.KEY_RSSI, parser.nextInt()); + position.set(Position.KEY_SATELLITES, parser.nextInt()); + + position.setValid(parser.next().equals("A")); + position.setTime(parser.nextDateTime(Parser.DateTimeFormat.HMS_DMY)); + + double latitude = parser.nextDouble(); + double longitude = parser.nextDouble(); + if (Math.abs(latitude) > 90 || Math.abs(longitude) > 180) { + position.setLatitude(convertToDegrees(latitude)); + position.setLongitude(convertToDegrees(longitude)); + } else { + position.setLatitude(latitude); + position.setLongitude(longitude); + } + + position.setCourse(parser.nextDouble(0)); + if (parser.hasNext()) { + String direction = parser.next(); + for (int i = 0; i < DIRECTIONS.length; i++) { + if (direction.equals(DIRECTIONS[i])) { + position.setCourse(i * 45.0); + break; + } + } + } + + position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble())); + + position.set(Position.KEY_HOURS, UnitsConverter.msFromHours(parser.nextInt())); + position.set("idleHours", parser.nextInt()); + position.set(Position.KEY_ODOMETER, parser.nextInt() * 100); + position.set(Position.KEY_CHARGE, parser.next().equals("1")); + position.set(Position.KEY_POWER, parser.nextDouble()); + position.set(Position.KEY_FUEL_LEVEL, parser.nextInt()); + position.set(Position.PREFIX_ADC + 1, parser.nextDouble()); + position.set(Position.PREFIX_ADC + 2, parser.nextDouble()); + position.set(Position.PREFIX_IN + 1, parser.nextInt()); + position.set(Position.PREFIX_IN + 2, parser.nextInt()); + position.set(Position.PREFIX_IN + 3, parser.nextInt()); + position.set(Position.PREFIX_IN + 4, parser.nextInt()); + position.set(Position.PREFIX_OUT + 1, parser.nextInt()); + position.set(Position.PREFIX_OUT + 2, parser.nextInt()); + position.set(Position.PREFIX_OUT + 3, parser.nextInt()); + + return position; + } + +} |