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 26769b7e..02b4440d 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
@@ -1,5 +1,6 @@
 package com.imdroid.sideslope.sal;
 
+import com.imdroid.sideslope.bd.UBXUtil;
 import lombok.Data;
 
 import java.time.LocalDateTime;
@@ -58,6 +59,9 @@ public class Device {
     LocalDateTime lastRxTime;
     int lastRxHead = 0;
 
+    int fixedNum = 0;
+    int floatNum = 0;
+
     public void updateRx(int head, int bytes,int count){
         lastRxHead = head;
         lastRxTime = LocalDateTime.now();
@@ -90,6 +94,11 @@ public class Device {
         }
     }
 
+    public void updateB562Quality(int quality){
+        if(quality == UBXUtil.FIX_RESULT) fixedNum++;
+        else if(quality == UBXUtil.FLOAT_RESULT) floatNum++;
+    }
+
     public void clearStat(){
         d3xxCount = 0;
         d3xxbytes = 0;
@@ -97,6 +106,8 @@ public class Device {
         d341bytes = 0;
         sataStatCount = 0;
         satelitesInUse = 0;
+        fixedNum = 0;
+        floatNum = 0;
     }
 
     public void clearD342Stat(){