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authoranton2920 <anton2920@gmail.com>2022-09-05 12:56:16 +0100
committeranton2920 <anton2920@gmail.com>2022-09-07 09:48:46 +0100
commit6196ea366cfc5c668ef35940bcac50672badd82d (patch)
tree23ae56d1934f60516d730bf12863da85aed933ff /src/main/java
parent24cb3a2faaa1fba33983e4e942af8d0c35df5802 (diff)
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Added decoding of ADC sub-packet
Diffstat (limited to 'src/main/java')
-rw-r--r--src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java49
1 files changed, 39 insertions, 10 deletions
diff --git a/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java b/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java
index 056fc2d4d..24bd69d45 100644
--- a/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/G1rusProtocolDecoder.java
@@ -63,6 +63,8 @@ public class G1rusProtocolDecoder extends BaseProtocolDecoder {
private static final int G1RUS_GPS_VDOP_MASK = 0b01000000;
private static final int G1RUS_GPS_STAT_MASK = 0b10000000;
+ private static final int G1RUS_ADC_DATA_MASK = 0b0000111111111111;
+
private static final int G1RUS_ESCAPE_CHAR = 0x1B;
@@ -101,7 +103,7 @@ public class G1rusProtocolDecoder extends BaseProtocolDecoder {
}
- private short readUnsignedShortUnescaped(ByteBuf buf) {
+ private int readUnsignedShortUnescaped(ByteBuf buf) {
byte[] shortBuf = new byte[2];
readBytesUnescaped(buf, shortBuf);
return Shorts.fromByteArray(shortBuf);
@@ -155,7 +157,7 @@ public class G1rusProtocolDecoder extends BaseProtocolDecoder {
skipBytesUnescaped(buf, 1); /* Total length */
- short subMask = readUnsignedShortUnescaped(buf);
+ int subMask = readUnsignedShortUnescaped(buf);
if ((subMask & G1RUS_GPS_SIGN_MASK) == G1RUS_GPS_SIGN_MASK) {
skipBytesUnescaped(buf, 1);
}
@@ -192,8 +194,36 @@ public class G1rusProtocolDecoder extends BaseProtocolDecoder {
}
+ private int getADValue(int rawValue) {
+ final int AD_MIN = -10;
+ final int AD_MAX = 100;
+
+ return rawValue * (AD_MAX - AD_MIN) / 4096 + AD_MIN;
+ }
+
+
private void decodeADCSub(ByteBuf buf, Position position) {
+ LOGGER.info("<ADC>");
+
+ skipBytesUnescaped(buf, 1);
+
+ /* NOTE: assuming order:
+ * External battery voltage -> Backup battery voltage -> Device temperature voltage.
+ * TODO: actually check this.
+ */
+ int externalVoltage = readUnsignedShortUnescaped(buf) & G1RUS_ADC_DATA_MASK;
+ LOGGER.info("External voltage: " + getADValue(externalVoltage) + "V [" + externalVoltage + "]");
+
+ int backupVoltage = readUnsignedShortUnescaped(buf) & G1RUS_ADC_DATA_MASK;
+ LOGGER.info("Backup voltage: " + getADValue(backupVoltage) + "V [" + backupVoltage + "]");
+ position.set(Position.KEY_BATTERY, getADValue(backupVoltage));
+
+ int temperature = readUnsignedShortUnescaped(buf) & G1RUS_ADC_DATA_MASK;
+ LOGGER.info("Device temperature: " + getADValue(temperature) + "°C [" + temperature + "]");
+ position.set(Position.KEY_DEVICE_TEMP, getADValue(temperature));
+
+ LOGGER.info("</ADC>");
}
@@ -209,7 +239,7 @@ public class G1rusProtocolDecoder extends BaseProtocolDecoder {
DeviceSession deviceSession = null;
Position position = null;
- short dataUploadingMask = readUnsignedShortUnescaped(buf);
+ int dataUploadingMask = readUnsignedShortUnescaped(buf);
if ((dataUploadingMask & G1RUS_DATA_SYS_MASK) == G1RUS_DATA_SYS_MASK) {
decodeSYSSub(buf);
}
@@ -231,12 +261,11 @@ public class G1rusProtocolDecoder extends BaseProtocolDecoder {
skipBytesUnescaped(buf, readUnsignedByteUnescaped(buf));
}
if ((dataUploadingMask & G1RUS_DATA_ADC_MASK) == G1RUS_DATA_ADC_MASK) {
- /*if (deviceSession == null) {
- return null;
- }*/
-
- skipBytesUnescaped(buf, readUnsignedByteUnescaped(buf));
- // decodeADCSub(buf, position);
+ if (deviceSession == null) {
+ skipBytesUnescaped(buf, readUnsignedByteUnescaped(buf));
+ } else {
+ decodeADCSub(buf, position);
+ }
}
if ((dataUploadingMask & G1RUS_DATA_DTT_MASK) == G1RUS_DATA_DTT_MASK) {
skipBytesUnescaped(buf, readUnsignedByteUnescaped(buf));
@@ -303,7 +332,7 @@ public class G1rusProtocolDecoder extends BaseProtocolDecoder {
positions = new LinkedList<>();
while (buf.readableBytes() > 5) {
- short subPacketLength = readUnsignedShortUnescaped(buf);
+ int subPacketLength = readUnsignedShortUnescaped(buf);
short subPacketType = readUnsignedByteUnescaped(buf);
printPacketType(subPacketType);