1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
/*
* Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
*
* 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 java.net.SocketAddress;
import java.nio.charset.Charset;
import java.util.Date;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.ChannelBufferTools;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Event;
import org.traccar.model.Position;
public class TytanProtocolDecoder extends BaseProtocolDecoder {
public TytanProtocolDecoder(TytanProtocol protocol) {
super(protocol);
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg)
throws Exception {
ChannelBuffer buf = (ChannelBuffer) msg;
buf.readUnsignedByte(); // protocol
int index = buf.readUnsignedByte() >> 3;
if (channel != null) {
ChannelBuffer response = ChannelBuffers.copiedBuffer(
"^" + index, Charset.defaultCharset());
channel.write(response, remoteAddress);
}
String id = String.valueOf(buf.readUnsignedInt());
if (!identify(id, channel, remoteAddress)) {
return null;
}
List<Position> positions = new LinkedList<Position>();
while (buf.readable()) {
Position position = new Position();
position.setProtocol(getProtocolName());
position.setDeviceId(getDeviceId());
int end = buf.readerIndex() + buf.readUnsignedByte();
position.setTime(new Date(buf.readUnsignedInt() * 1000));
int flags = buf.readUnsignedByte();
position.set(Event.KEY_GPS, flags >> 5);
position.set(Event.KEY_GSM, flags & 0x07);
position.setValid(((flags & 0x08) != 0) ^ ((flags & 0x10) != 0));
// Latitude
double lat = buf.readUnsignedMedium();
lat = lat * -180 / 16777216 + 90;
position.setLatitude(lat);
// Longitude
double lon = buf.readUnsignedMedium();
lon = lon * 360 / 16777216 - 180;
position.setLongitude(lon);
// Status
flags = buf.readUnsignedByte();
position.set(Event.KEY_STATUS, flags & 0x1f);
int course = (flags >> 5) * 45;
course = (course + 180) % 360;
position.setCourse(course);
// Speed
int speed = buf.readUnsignedByte();
if (speed < 250) {
position.setSpeed(UnitsConverter.knotsFromKph(speed));
}
while (buf.readerIndex() < end) {
int x = buf.getUnsignedByte(buf.readerIndex());
switch (buf.readUnsignedByte()) {
case 2:
position.set(Event.KEY_ODOMETER, buf.readUnsignedMedium());
break;
case 4:
buf.readUnsignedShort(); // device start
break;
case 5:
position.set(Event.KEY_INPUT, buf.readUnsignedByte());
break;
case 6:
{
int n = buf.readUnsignedByte() >> 4;
if (n < 2) {
position.set(Event.PREFIX_ADC + n, buf.readFloat());
} else {
position.set("di" + (n - 2), buf.readFloat());
}
}
break;
case 7:
position.set(Event.KEY_ALARM, buf.readUnsignedShort());
break;
case 8:
position.set("antihijack", buf.readUnsignedByte());
break;
case 9:
position.set("authorized", ChannelBufferTools.readHexString(buf, 16));
break;
case 10:
position.set("unauthorized", ChannelBufferTools.readHexString(buf, 16));
break;
case 23:
buf.skipBytes(9);
break;
case 24:
{
Set<Integer> temps = new LinkedHashSet<Integer>();
int temp = buf.readUnsignedByte();
for (int i = 3; i >= 0; i--) {
int n = (temp >> (2 * i)) & 0x03;
if (!temps.contains(n)) {
temps.add(n);
}
}
for (int n : temps) {
position.set(Event.PREFIX_TEMP + n, buf.readUnsignedByte());
}
}
break;
case 25:
buf.readUnsignedByte();
buf.readUnsignedShort(); // fuel
break;
case 26:
buf.skipBytes(buf.readUnsignedByte() * 2); // flowmeter
break;
case 28:
position.set("weight", buf.readUnsignedShort());
buf.readUnsignedByte();
break;
case 29:
buf.readUnsignedByte(); // diagnostics
break;
case 30:
buf.readUnsignedByte(); // vending machine
buf.readUnsignedInt();
buf.readUnsignedInt();
buf.readUnsignedInt();
break;
case 31:
buf.readUnsignedByte(); // antihijack
break;
case 32:
buf.readUnsignedByte(); // audio
break;
case 33:
buf.readUnsignedByte(); // antihijack and authorization
break;
case 80:
case 81:
case 82:
case 83:
buf.readUnsignedInt(); // diagnostic
break;
case 90:
position.set(Event.KEY_POWER, buf.readFloat());
break;
case 99:
buf.readUnsignedInt(); // tachograph
break;
case 101:
buf.readUnsignedByte(); // speed
break;
case 102:
buf.readUnsignedByte(); // engine rpm
break;
case 103:
buf.readUnsignedByte(); // engine temperature
break;
case 104:
buf.readUnsignedByte(); // pedal position
break;
case 105:
buf.readUnsignedByte(); // engine load
break;
case 107:
position.set(Event.KEY_FUEL, buf.readUnsignedShort() & 0x3fff);
break;
case 108:
buf.readUnsignedInt(); // total distance
break;
case 109:
buf.readUnsignedByte(); // ambient temperature
break;
case 122:
buf.readUnsignedByte(); // power take-off state
break;
case 127:
buf.readUnsignedInt(); // total fuel used
break;
case 129:
buf.readUnsignedInt(); // engine total hours
break;
case 130:
buf.readUnsignedShort(); // distance to service
break;
case 131:
buf.readUnsignedShort(); // axle weight
buf.readUnsignedShort();
buf.readUnsignedShort();
buf.readUnsignedShort();
break;
case 136:
buf.readUnsignedShort(); // fuel rate
break;
case 150:
position.set("door", buf.readUnsignedByte());
break;
}
}
positions.add(position);
}
return positions;
}
}
|
