From a9199ab710056dda371aa3dd25cffc225374c0d6 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Thu, 14 Jul 2022 08:09:16 -0700
Subject: Support AT20 protocol format

---
 .../java/org/traccar/protocol/TotemProtocolDecoder.java    | 14 ++++++++++++--
 .../org/traccar/protocol/TotemProtocolDecoderTest.java     |  3 +++
 2 files changed, 15 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java b/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
index 4f520f360..9d0d794f8 100644
--- a/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
@@ -140,8 +140,12 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             .number("(x{8})")                    // status
             .number("(dd)(dd)(dd)")              // date (yymmdd)
             .number("(dd)(dd)(dd)")              // time (hhmmss)
+            .groupBegin()
             .number("(dd)")                      // battery
             .number("(dd)")                      // external power
+            .or()
+            .number("(ddd)")                     // battery
+            .groupEnd()
             .number("(dddd)")                    // adc 1
             .groupBegin()
             .groupBegin()
@@ -166,6 +170,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
             .number("(d{7})")                    // odometer
             .number("(dd)(dd.dddd)([NS])")       // latitude
             .number("(ddd)(dd.dddd)([EW])")      // longitude
+            .number("dddd").optional()           // temperature
             .number("dddd")                      // serial number
             .number("xx")                        // checksum
             .any()
@@ -379,8 +384,13 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
 
         position.setTime(parser.nextDateTime());
 
-        position.set(Position.KEY_BATTERY, parser.nextDouble() * 0.1);
-        position.set(Position.KEY_POWER, parser.nextDouble());
+        if (parser.hasNext(2)) {
+            position.set(Position.KEY_BATTERY, parser.nextDouble() * 0.1);
+            position.set(Position.KEY_POWER, parser.nextDouble());
+        }
+        if (parser.hasNext()) {
+            position.set(Position.KEY_BATTERY, parser.nextDouble() * 0.01);
+        }
 
         position.set(Position.PREFIX_ADC + 1, parser.next());
         position.set(Position.PREFIX_ADC + 2, parser.next());
diff --git a/src/test/java/org/traccar/protocol/TotemProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/TotemProtocolDecoderTest.java
index 83498b5ac..df5734568 100644
--- a/src/test/java/org/traccar/protocol/TotemProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/TotemProtocolDecoderTest.java
@@ -10,6 +10,9 @@ public class TotemProtocolDecoderTest extends ProtocolTest {
 
         var decoder = inject(new TotemProtocolDecoder(null));
 
+        verifyPosition(decoder, text(
+                "$$0111AA353081090067318|0804400022070722520240400005B364ED5003107300001.700000002245.3919N10231.6952W000001860E"));
+
         verifyPosition(decoder, text(
                 "$$0112E5864606045334223|201112223514,-68.923106,-22.455926,$Cloud,1738,621,730,12100,0,0,255,0,40,40,0,0,255,|13"));
 
-- 
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