2 files changed, 17 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
index 915f764e1..7e520ab3a 100644
--- a/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -614,10 +614,21 @@ public class SuntechProtocolDecoder extends BaseProtocolDecoder {
             position.set(Position.KEY_OUTPUT, buf.readUnsignedByte());
         }
 
+        int alertId = 0;
         if (BitUtil.check(mask, 19)) {
-            int value = buf.readUnsignedByte();
+            alertId = buf.readUnsignedByte();
             if (type == 0x82) {
-                position.set(Position.KEY_ALARM, decodeAlert(value));
+                position.set(Position.KEY_ALARM, decodeAlert(alertId));
+            }
+        }
+
+        if (BitUtil.check(mask, 20)) {
+            buf.readUnsignedShort(); // alert mod
+        }
+
+        if (BitUtil.check(mask, 21)) {
+            if (alertId == 59) {
+                position.set(Position.KEY_DRIVER_UNIQUE_ID, ByteBufUtil.hexDump(buf.readSlice(8)));
             }
         }
 
diff --git a/src/test/java/org/traccar/protocol/SuntechProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/SuntechProtocolDecoderTest.java
index ad9be942f..82f0a29e1 100644
--- a/src/test/java/org/traccar/protocol/SuntechProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/SuntechProtocolDecoderTest.java
@@ -62,6 +62,10 @@ public class SuntechProtocolDecoderTest extends ProtocolTest {
 
         SuntechProtocolDecoder decoder = new SuntechProtocolDecoder(null);
 
+        verifyAttribute(decoder, binary(
+                "82004d05800000553fffff360100100114020410293902ccccf102dc007b00053c00476fa18469e87f000000000b0100003b00081d00000113f3f8010000049e00000000000000001d00000113f3f801"),
+                Position.KEY_DRIVER_UNIQUE_ID, "1d00000113f3f801");
+
         verifyPosition(decoder, buffer(
                 "ST410STT;007638094;426;01;24153;724;4;-65;365;0;24161;724;4;365;0;0;24162;724;4;365;0;0;24363;724;4;365;0;0;24151;724;4;365;0;0;24991;724;4;365;0;0;24373;724;4;365;0;0;3.98;1;0176;2;016;20200106;19:18:04;-15.571860;-056.062637;000.852;238.28;6;1;201"));