diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/service/Device.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/service/Device.java
index af1c692c..6a281edc 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/service/Device.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/service/Device.java
@@ -74,6 +74,7 @@ public class Device {
     private BigDecimal used;
 
     LocalDateTime lastRxTime;
+    LocalDateTime lastD3f0f2Time;
     LocalDateTime lastD3f2Time;
     short noFixedAndFloatResult=0;
 
@@ -89,13 +90,14 @@ public class Device {
     short abnormalD341Num = 0;
     byte cfgChannelType = CHANNEL_TYPE_TCP; // 0:TCP;1:DUP
     byte dataChannelType = CHANNEL_TYPE_UDP; // 0:TCP;1:DUP
+    int lasQuality = 0;
 
     public void updateRx(int head, int bytes,int count){
         lastRxHead = head;
 
         switch (head){
             case 0xd3f0:
-                //lastD3f0f2Time = LocalDateTime.now();
+                lastD3f0f2Time = LocalDateTime.now();
                 //clearStat();
                 break;
             case 0xd3f2:
@@ -128,6 +130,7 @@ public class Device {
     }
 
     public void updateCalcQuality(int quality){
+        lasQuality = quality;
         if(b562AsCalc) {
             if (quality == UBXUtil.FIX_RESULT) fixedNum++;
             else if (quality == UBXUtil.FLOAT_RESULT) floatNum++;