diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/SingleLineGNSSCalcService.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/SingleLineGNSSCalcService.java
index 1e5a6736..223c35e7 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/SingleLineGNSSCalcService.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/calc/SingleLineGNSSCalcService.java
@@ -77,6 +77,7 @@ public class SingleLineGNSSCalcService implements GNSSDataCalcService {
         if(device == null) return;
         GnssGroupCalc groupCalc = getGroupCalc(device.getCalcGroupId());
         if(groupCalc==null) return;
+        device.setCalcVer(groupCalc.getVer());
 
         if(completeWhenIdle) resultOutputTimer(device, groupCalc, message.getCreateTime());
 
@@ -269,7 +270,7 @@ public class SingleLineGNSSCalcService implements GNSSDataCalcService {
                     else focusCalculator.setReferPoint(b562Result);
                 }
             }
-            else if(focusCalculator.getVer()==1 || focusCalculator.getVer()==3 || focusCalculator.getVer()==5 || focusCalculator.isShocked()) {
+            else if(focusCalculator.getVer()==1 || focusCalculator.getVer()==3 || focusCalculator.getVer()==5) {
                 focusCalculator.setReferPoint(b562Result);
             }
             else {
diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/executor/D341LocationMessageExecutor.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/executor/D341LocationMessageExecutor.java
index 094020df..d7de3c6c 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/executor/D341LocationMessageExecutor.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/executor/D341LocationMessageExecutor.java
@@ -74,8 +74,10 @@ public class D341LocationMessageExecutor implements Executor<D341LocationMessage
 
         // update trx
         device.updateRx(message.getHeader(), message.getLen(), 1);
-        double[] pos = message.getB562_loc();
-        device.updateB562Quality((int) pos[3]);
+        if(device.getCalcVer()!=3) {
+            double[] pos = message.getB562_loc();
+            device.updateB562Quality((int) pos[3]);
+        }
 
         Gga gga = message.getGga();
         if(gga != null) {
@@ -85,6 +87,9 @@ public class D341LocationMessageExecutor implements Executor<D341LocationMessage
                 device.setLongitude(gga.getLongitude());
                 device.setAltitude(gga.getAltitude());
             }
+            if(device.getCalcVer()==3){
+                device.updateB562Quality(gga.getQuality());
+            }
         }
 
         ThreadManager.getFixedThreadPool().submit(() -> {
diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/sal/Device.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/sal/Device.java
index 54cb916b..381fd580 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/sal/Device.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/sal/Device.java
@@ -37,6 +37,7 @@ public class Device {
 
     private Integer calcGroupId;
     private Short opMode;
+    private Short calcVer;//算法版本
 
     int d3xxCount = 0;
     int d3xxbytes = 0;